code.delx.au - gnu-emacs/blob - src/nsterm.m

   1 /* NeXT/Open/GNUstep / MacOSX communication module.
   2    Copyright (C) 1989, 1993, 1994, 2005, 2006, 2008, 2009, 2010
   3      Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /*
  21 Originally by Carl Edman
  22 Updated by Christian Limpach (chris@nice.ch)
  23 OpenStep/Rhapsody port by Scott Bender (sbender@harmony-ds.com)
  24 MacOSX/Aqua port by Christophe de Dinechin (descubes@earthlink.net)
  25 GNUstep port and post-20 update by Adrian Robert (arobert@cogsci.ucsd.edu)
  26 */
  27
  28 /* This should be the first include, as it may set up #defines affecting
  29    interpretation of even the system includes. */
  30 #include <config.h>
  31
  32 #include <math.h>
  33 #include <sys/types.h>
  34 #include <time.h>
  35 #include <signal.h>
  36 #include <unistd.h>
  37 #include <setjmp.h>
  38
  39 #include "lisp.h"
  40 #include "blockinput.h"
  41 #include "sysselect.h"
  42 #include "nsterm.h"
  43 #include "systime.h"
  44 #include "character.h"
  45 #include "fontset.h"
  46 #include "composite.h"
  47 #include "ccl.h"
  48
  49 #include "termhooks.h"
  50 #include "termopts.h"
  51 #include "termchar.h"
  52
  53 #include "window.h"
  54 #include "keyboard.h"
  55
  56 #include "font.h"
  57
  58 /* call tracing */
  59 #if 0
  60 int term_trace_num = 0;
  61 #define NSTRACE(x)        fprintf (stderr, "%s:%d: [%d] " #x "\n",         \
  62                                 __FILE__, __LINE__, ++term_trace_num)
  63 #else
  64 #define NSTRACE(x)
  65 #endif
  66
  67
  68 /* ==========================================================================
  69
  70     Local declarations
  71
  72    ========================================================================== */
  73
  74 /* Convert a symbol indexed with an NSxxx value to a value as defined
  75    in keyboard.c (lispy_function_key). I hope this is a correct way
  76    of doing things... */
  77 static unsigned convert_ns_to_X_keysym[] =
  78 {
  79   NSHomeFunctionKey,            0x50,
  80   NSLeftArrowFunctionKey,       0x51,
  81   NSUpArrowFunctionKey,         0x52,
  82   NSRightArrowFunctionKey,      0x53,
  83   NSDownArrowFunctionKey,       0x54,
  84   NSPageUpFunctionKey,          0x55,
  85   NSPageDownFunctionKey,        0x56,
  86   NSEndFunctionKey,             0x57,
  87   NSBeginFunctionKey,           0x58,
  88   NSSelectFunctionKey,          0x60,
  89   NSPrintFunctionKey,           0x61,
  90   NSExecuteFunctionKey,         0x62,
  91   NSInsertFunctionKey,          0x63,
  92   NSUndoFunctionKey,            0x65,
  93   NSRedoFunctionKey,            0x66,
  94   NSMenuFunctionKey,            0x67,
  95   NSFindFunctionKey,            0x68,
  96   NSHelpFunctionKey,            0x6A,
  97   NSBreakFunctionKey,           0x6B,
  98
  99   NSF1FunctionKey,              0xBE,
 100   NSF2FunctionKey,              0xBF,
 101   NSF3FunctionKey,              0xC0,
 102   NSF4FunctionKey,              0xC1,
 103   NSF5FunctionKey,              0xC2,
 104   NSF6FunctionKey,              0xC3,
 105   NSF7FunctionKey,              0xC4,
 106   NSF8FunctionKey,              0xC5,
 107   NSF9FunctionKey,              0xC6,
 108   NSF10FunctionKey,             0xC7,
 109   NSF11FunctionKey,             0xC8,
 110   NSF12FunctionKey,             0xC9,
 111   NSF13FunctionKey,             0xCA,
 112   NSF14FunctionKey,             0xCB,
 113   NSF15FunctionKey,             0xCC,
 114   NSF16FunctionKey,             0xCD,
 115   NSF17FunctionKey,             0xCE,
 116   NSF18FunctionKey,             0xCF,
 117   NSF19FunctionKey,             0xD0,
 118   NSF20FunctionKey,             0xD1,
 119   NSF21FunctionKey,             0xD2,
 120   NSF22FunctionKey,             0xD3,
 121   NSF23FunctionKey,             0xD4,
 122   NSF24FunctionKey,             0xD5,
 123
 124   NSBackspaceCharacter,         0x08,  /* 8: Not on some KBs. */
 125   NSDeleteCharacter,            0xFF,  /* 127: Big 'delete' key upper right. */
 126   NSDeleteFunctionKey,          0x9F,  /* 63272: Del forw key off main array. */
 127
 128   NSTabCharacter,               0x09,
 129   0x19,                         0x09,  /* left tab->regular since pass shift */
 130   NSCarriageReturnCharacter,    0x0D,
 131   NSNewlineCharacter,           0x0D,
 132   NSEnterCharacter,             0x8D,
 133
 134   0x1B,                         0x1B   /* escape */
 135 };
 136
 137
 138 /* Lisp communications */
 139 Lisp_Object ns_input_file, ns_input_font, ns_input_fontsize, ns_input_line;
 140 Lisp_Object ns_input_color, ns_input_text, ns_working_text;
 141 Lisp_Object ns_input_spi_name, ns_input_spi_arg;
 142 Lisp_Object Vx_toolkit_scroll_bars;
 143 static Lisp_Object Qmodifier_value;
 144 Lisp_Object Qalt, Qcontrol, Qhyper, Qmeta, Qsuper, Qnone;
 145 extern Lisp_Object Qcursor_color, Qcursor_type, Qns;
 146
 147 /* Specifies which emacs modifier should be generated when NS receives
 148    the Alternate modifer.  May be Qnone or any of the modifier lisp symbols. */
 149 Lisp_Object ns_alternate_modifier;
 150
 151 /* Specifies which emacs modifier should be generated when NS receives
 152    the Command modifer.  May be any of the modifier lisp symbols. */
 153 Lisp_Object ns_command_modifier;
 154
 155 /* Specifies which emacs modifier should be generated when NS receives
 156    the Control modifer.  May be any of the modifier lisp symbols. */
 157 Lisp_Object ns_control_modifier;
 158
 159 /* Specifies which emacs modifier should be generated when NS receives
 160    the Function modifer (laptops).  May be any of the modifier lisp symbols. */
 161 Lisp_Object ns_function_modifier;
 162
 163 /* Control via default 'GSFontAntiAlias' on OS X and GNUstep. */
 164 Lisp_Object ns_antialias_text;
 165
 166 /* On OS X picks up the default NSGlobalDomain AppleAntiAliasingThreshold,
 167    the maximum font size to NOT antialias.  On GNUstep there is currently
 168    no way to control this behavior. */
 169 float ns_antialias_threshold;
 170
 171 /* Used to pick up AppleHighlightColor on OS X */
 172 NSString *ns_selection_color;
 173
 174 /* Confirm on exit. */
 175 Lisp_Object ns_confirm_quit;
 176
 177 NSArray *ns_send_types =0, *ns_return_types =0, *ns_drag_types =0;
 178 NSString *ns_app_name = @"Emacs";  /* default changed later */
 179
 180 /* Display variables */
 181 struct ns_display_info *x_display_list; /* Chain of existing displays */
 182 Lisp_Object ns_display_name_list;
 183 long context_menu_value = 0;
 184
 185 /* display update */
 186 NSPoint last_mouse_motion_position;
 187 static NSRect last_mouse_glyph;
 188 static unsigned long last_mouse_movement_time = 0;
 189 static Lisp_Object last_mouse_motion_frame;
 190 static EmacsScroller *last_mouse_scroll_bar = nil;
 191 static struct frame *ns_updating_frame;
 192 static NSView *focus_view = NULL;
 193 static int ns_window_num =0;
 194 static NSRect uRect;
 195 static BOOL gsaved = NO;
 196 BOOL ns_in_resize = NO;
 197 static BOOL ns_fake_keydown = NO;
 198 int ns_tmp_flags; /* FIXME */
 199 struct nsfont_info *ns_tmp_font; /* FIXME */
 200 /*static int debug_lock = 0; */
 201
 202 /* event loop */
 203 static BOOL send_appdefined = YES;
 204 static NSEvent *last_appdefined_event = 0;
 205 static NSTimer *timed_entry = 0;
 206 static NSTimer *fd_entry = nil;
 207 static NSTimer *scroll_repeat_entry = nil;
 208 static fd_set select_readfds, t_readfds;
 209 static struct timeval select_timeout;
 210 static int select_nfds;
 211 static NSAutoreleasePool *outerpool;
 212 static struct input_event *emacs_event = NULL;
 213 static struct input_event *q_event_ptr = NULL;
 214 static int n_emacs_events_pending = 0;
 215 static NSMutableArray *ns_pending_files, *ns_pending_service_names,
 216   *ns_pending_service_args;
 217 static BOOL inNsSelect = 0;
 218
 219 /* Convert modifiers in a NeXTSTEP event to emacs style modifiers.  */
 220 #define NS_FUNCTION_KEY_MASK 0x800000
 221 #define EV_MODIFIERS(e)                               \
 222     ((([e modifierFlags] & NSHelpKeyMask) ?           \
 223            hyper_modifier : 0)                        \
 224      | (([e modifierFlags] & NSAlternateKeyMask) ?    \
 225            parse_solitary_modifier (ns_alternate_modifier) : 0)   \
 226      | (([e modifierFlags] & NSShiftKeyMask) ?        \
 227            shift_modifier : 0)                        \
 228      | (([e modifierFlags] & NSControlKeyMask) ?      \
 229            parse_solitary_modifier (ns_control_modifier) : 0)     \
 230      | (([e modifierFlags] & NS_FUNCTION_KEY_MASK) ?  \
 231            parse_solitary_modifier (ns_function_modifier) : 0)    \
 232      | (([e modifierFlags] & NSCommandKeyMask) ?      \
 233            parse_solitary_modifier (ns_command_modifier):0))
 234
 235 #define EV_UDMODIFIERS(e)                                      \
 236     ((([e type] == NSLeftMouseDown) ? down_modifier : 0)       \
 237      | (([e type] == NSRightMouseDown) ? down_modifier : 0)    \
 238      | (([e type] == NSOtherMouseDown) ? down_modifier : 0)    \
 239      | (([e type] == NSLeftMouseDragged) ? down_modifier : 0)  \
 240      | (([e type] == NSRightMouseDragged) ? down_modifier : 0) \
 241      | (([e type] == NSOtherMouseDragged) ? down_modifier : 0) \
 242      | (([e type] == NSLeftMouseUp)   ? up_modifier   : 0)     \
 243      | (([e type] == NSRightMouseUp)   ? up_modifier   : 0)    \
 244      | (([e type] == NSOtherMouseUp)   ? up_modifier   : 0))
 245
 246 #define EV_BUTTON(e)                                                         \
 247     ((([e type] == NSLeftMouseDown) || ([e type] == NSLeftMouseUp)) ? 0 :    \
 248       (([e type] == NSRightMouseDown) || ([e type] == NSRightMouseUp)) ? 2 : \
 249      [e buttonNumber] - 1)
 250
 251 /* Convert the time field to a timestamp in milliseconds. */
 252 #define EV_TIMESTAMP(e) ([e timestamp] * 1000)
 253
 254 /* This is a piece of code which is common to all the event handling
 255    methods.  Maybe it should even be a function.  */
 256 #define EV_TRAILER(e)                                         \
 257   {                                                           \
 258   XSETFRAME (emacs_event->frame_or_window, emacsframe);       \
 259   if (e) emacs_event->timestamp = EV_TIMESTAMP (e);           \
 260   n_emacs_events_pending++;                                   \
 261   kbd_buffer_store_event_hold (emacs_event, q_event_ptr);     \
 262   EVENT_INIT (*emacs_event);                                  \
 263   ns_send_appdefined (-1);                                    \
 264   }
 265
 266 void x_set_cursor_type (struct frame *, Lisp_Object, Lisp_Object);
 267
 268 /* TODO: get rid of need for these forward declarations */
 269 static void ns_condemn_scroll_bars (struct frame *f);
 270 static void ns_judge_scroll_bars (struct frame *f);
 271 void x_set_frame_alpha (struct frame *f);
 272
 273 /* unused variables needed for compatibility reasons */
 274 int x_use_underline_position_properties, x_underline_at_descent_line;
 275 /* FIXME: figure out what to do with underline_minimum_offset. */
 276
 277
 278 /* ==========================================================================
 279
 280     Utilities
 281
 282    ========================================================================== */
 283
 284
 285 static Lisp_Object
 286 append2 (Lisp_Object list, Lisp_Object item)
 287 /* --------------------------------------------------------------------------
 288    Utility to append to a list
 289    -------------------------------------------------------------------------- */
 290 {
 291   Lisp_Object array[2];
 292   array[0] = list;
 293   array[1] = Fcons (item, Qnil);
 294   return Fnconc (2, &array[0]);
 295 }
 296
 297
 298 void
 299 ns_init_paths (void)
 300 /* --------------------------------------------------------------------------
 301    Used to allow emacs to find its resources under Emacs.app
 302    Called from emacs.c at startup.
 303    -------------------------------------------------------------------------- */
 304 {
 305   NSBundle *bundle = [NSBundle mainBundle];
 306   NSString *binDir = [bundle bundlePath], *resourceDir = [bundle resourcePath];
 307   NSString *resourcePath, *resourcePaths;
 308   NSRange range;
 309   BOOL onWindows = NO; /* how do I determine this? */
 310   NSString *pathSeparator = onWindows ? @";" : @":";
 311   NSFileManager *fileManager = [NSFileManager defaultManager];
 312   BOOL isDir;
 313 /*NSLog (@"ns_init_paths: '%@'\n%@\n", [[NSBundle mainBundle] bundlePath], [[NSBundle mainBundle] resourcePath]); */
 314
 315   /* get bindir from base */
 316   range = [resourceDir rangeOfString: @"Contents"];
 317   if (range.location != NSNotFound)
 318     {
 319       binDir = [binDir stringByAppendingPathComponent: @"Contents"];
 320 #ifdef NS_IMPL_COCOA
 321       binDir = [binDir stringByAppendingPathComponent: @"MacOS"];
 322 #endif
 323     }
 324
 325   /* the following based on Andrew Choi's init_mac_osx_environment () */
 326   if (!getenv ("EMACSLOADPATH"))
 327     {
 328       NSArray *paths = [resourceDir stringsByAppendingPaths:
 329                                   [NSArray arrayWithObjects:
 330                                          @"site-lisp", @"lisp", @"leim", nil]];
 331       NSEnumerator *pathEnum = [paths objectEnumerator];
 332       resourcePaths = @"";
 333       while (resourcePath = [pathEnum nextObject])
 334         {
 335           if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 336             if (isDir)
 337               {
 338                 if ([resourcePaths length] > 0)
 339                   resourcePaths
 340                     = [resourcePaths stringByAppendingString: pathSeparator];
 341                 resourcePaths
 342                   = [resourcePaths stringByAppendingString: resourcePath];
 343               }
 344         }
 345       if ([resourcePaths length] > 0)
 346         setenv ("EMACSLOADPATH", [resourcePaths UTF8String], 1);
 347 /*NSLog (@"loadPath: '%@'\n", resourcePaths); */
 348     }
 349
 350   if (!getenv ("EMACSPATH"))
 351     {
 352       NSArray *paths = [binDir stringsByAppendingPaths:
 353                                   [NSArray arrayWithObjects: @"bin",
 354                                                              @"lib-exec", nil]];
 355       NSEnumerator *pathEnum = [paths objectEnumerator];
 356       resourcePaths = @"";
 357       while (resourcePath = [pathEnum nextObject])
 358         {
 359           if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 360             if (isDir)
 361               {
 362                 if ([resourcePaths length] > 0)
 363                   resourcePaths
 364                     = [resourcePaths stringByAppendingString: pathSeparator];
 365                 resourcePaths
 366                   = [resourcePaths stringByAppendingString: resourcePath];
 367               }
 368         }
 369       if ([resourcePaths length] > 0)
 370         setenv ("EMACSPATH", [resourcePaths UTF8String], 1);
 371     }
 372
 373   resourcePath = [resourceDir stringByAppendingPathComponent: @"etc"];
 374   if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 375     {
 376       if (isDir)
 377         {
 378           if (!getenv ("EMACSDATA"))
 379             setenv ("EMACSDATA", [resourcePath UTF8String], 1);
 380           if (!getenv ("EMACSDOC"))
 381             setenv ("EMACSDOC", [resourcePath UTF8String], 1);
 382         }
 383     }
 384
 385   if (!getenv ("INFOPATH"))
 386     {
 387       resourcePath = [resourceDir stringByAppendingPathComponent: @"info"];
 388       if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
 389         if (isDir)
 390           setenv ("INFOPATH", [[resourcePath stringByAppendingString: @":"]
 391                                              UTF8String], 1);
 392       /* Note, extra colon needed to cause merge w/later user additions. */
 393     }
 394 }
 395
 396
 397 static int
 398 timeval_subtract (struct timeval *result, struct timeval x, struct timeval y)
 399 /* --------------------------------------------------------------------------
 400    Subtract the `struct timeval' values X and Y, storing the result in RESULT.
 401    Return 1 if the difference is negative, otherwise 0.
 402    -------------------------------------------------------------------------- */
 403 {
 404   /* Perform the carry for the later subtraction by updating y.
 405      This is safer because on some systems
 406      the tv_sec member is unsigned.  */
 407   if (x.tv_usec < y.tv_usec)
 408     {
 409       int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1;
 410       y.tv_usec -= 1000000 * nsec;
 411       y.tv_sec += nsec;
 412     }
 413   if (x.tv_usec - y.tv_usec > 1000000)
 414     {
 415       int nsec = (y.tv_usec - x.tv_usec) / 1000000;
 416       y.tv_usec += 1000000 * nsec;
 417       y.tv_sec -= nsec;
 418     }
 419
 420   /* Compute the time remaining to wait.  tv_usec is certainly positive.  */
 421   result->tv_sec = x.tv_sec - y.tv_sec;
 422   result->tv_usec = x.tv_usec - y.tv_usec;
 423
 424   /* Return indication of whether the result should be considered negative.  */
 425   return x.tv_sec < y.tv_sec;
 426 }
 427
 428 static void
 429 ns_timeout (int usecs)
 430 /* --------------------------------------------------------------------------
 431      Blocking timer utility used by ns_ring_bell
 432    -------------------------------------------------------------------------- */
 433 {
 434   struct timeval wakeup;
 435
 436   EMACS_GET_TIME (wakeup);
 437
 438   /* Compute time to wait until, propagating carry from usecs.  */
 439   wakeup.tv_usec += usecs;
 440   wakeup.tv_sec += (wakeup.tv_usec / 1000000);
 441   wakeup.tv_usec %= 1000000;
 442
 443   /* Keep waiting until past the time wakeup.  */
 444   while (1)
 445     {
 446       struct timeval timeout;
 447
 448       EMACS_GET_TIME (timeout);
 449
 450       /* In effect, timeout = wakeup - timeout.
 451          Break if result would be negative.  */
 452       if (timeval_subtract (&timeout, wakeup, timeout))
 453         break;
 454
 455       /* Try to wait that long--but we might wake up sooner.  */
 456       select (0, NULL, NULL, NULL, &timeout);
 457     }
 458 }
 459
 460
 461 void
 462 ns_release_object (void *obj)
 463 /* --------------------------------------------------------------------------
 464     Release an object (callable from C)
 465    -------------------------------------------------------------------------- */
 466 {
 467     [(id)obj release];
 468 }
 469
 470
 471 void
 472 ns_retain_object (void *obj)
 473 /* --------------------------------------------------------------------------
 474     Retain an object (callable from C)
 475    -------------------------------------------------------------------------- */
 476 {
 477     [(id)obj retain];
 478 }
 479
 480
 481 void *
 482 ns_alloc_autorelease_pool (void)
 483 /* --------------------------------------------------------------------------
 484      Allocate a pool for temporary objects (callable from C)
 485    -------------------------------------------------------------------------- */
 486 {
 487   return [[NSAutoreleasePool alloc] init];
 488 }
 489
 490
 491 void
 492 ns_release_autorelease_pool (void *pool)
 493 /* --------------------------------------------------------------------------
 494      Free a pool and temporary objects it refers to (callable from C)
 495    -------------------------------------------------------------------------- */
 496 {
 497   ns_release_object (pool);
 498 }
 499
 500
 501
 502 /* ==========================================================================
 503
 504     Focus (clipping) and screen update
 505
 506    ========================================================================== */
 507
 508 static NSRect
 509 ns_resize_handle_rect (NSWindow *window)
 510 {
 511   NSRect r = [window frame];
 512   r.origin.x = r.size.width - RESIZE_HANDLE_SIZE;
 513   r.origin.y = 0;
 514   r.size.width = r.size.height = RESIZE_HANDLE_SIZE;
 515   return r;
 516 }
 517
 518
 519 static void
 520 ns_update_begin (struct frame *f)
 521 /* --------------------------------------------------------------------------
 522    Prepare for a grouped sequence of drawing calls
 523    external (RIF) call; whole frame, called before update_window_begin
 524    -------------------------------------------------------------------------- */
 525 {
 526   NSView *view = FRAME_NS_VIEW (f);
 527   NSTRACE (ns_update_begin);
 528
 529   ns_updating_frame = f;
 530   [view lockFocus];
 531
 532 #ifdef NS_IMPL_GNUSTEP
 533   uRect = NSMakeRect (0, 0, 0, 0);
 534 #endif
 535 }
 536
 537
 538 static void
 539 ns_update_window_begin (struct window *w)
 540 /* --------------------------------------------------------------------------
 541    Prepare for a grouped sequence of drawing calls
 542    external (RIF) call; for one window, called after update_begin
 543    -------------------------------------------------------------------------- */
 544 {
 545   struct frame *f = XFRAME (WINDOW_FRAME (w));
 546   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
 547   NSTRACE (ns_update_window_begin);
 548
 549   updated_window = w;
 550   set_output_cursor (&w->cursor);
 551
 552   BLOCK_INPUT;
 553
 554   if (f == dpyinfo->mouse_face_mouse_frame)
 555     {
 556       /* Don't do highlighting for mouse motion during the update.  */
 557       dpyinfo->mouse_face_defer = 1;
 558
 559         /* If the frame needs to be redrawn,
 560            simply forget about any prior mouse highlighting.  */
 561       if (FRAME_GARBAGED_P (f))
 562         dpyinfo->mouse_face_window = Qnil;
 563
 564       /* (further code for mouse faces ifdef'd out in other terms elided) */
 565     }
 566
 567   UNBLOCK_INPUT;
 568 }
 569
 570
 571 static void
 572 ns_update_window_end (struct window *w, int cursor_on_p,
 573                       int mouse_face_overwritten_p)
 574 /* --------------------------------------------------------------------------
 575    Finished a grouped sequence of drawing calls
 576    external (RIF) call; for one window called before update_end
 577    -------------------------------------------------------------------------- */
 578 {
 579   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (XFRAME (w->frame));
 580
 581   /* note: this fn is nearly identical in all terms */
 582   if (!w->pseudo_window_p)
 583     {
 584       BLOCK_INPUT;
 585
 586       if (cursor_on_p)
 587         display_and_set_cursor (w, 1,
 588                                 output_cursor.hpos, output_cursor.vpos,
 589                                 output_cursor.x, output_cursor.y);
 590
 591       if (draw_window_fringes (w, 1))
 592         x_draw_vertical_border (w);
 593
 594       UNBLOCK_INPUT;
 595     }
 596
 597   /* If a row with mouse-face was overwritten, arrange for
 598      frame_up_to_date to redisplay the mouse highlight.  */
 599   if (mouse_face_overwritten_p)
 600     {
 601       dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
 602       dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
 603       dpyinfo->mouse_face_window = Qnil;
 604     }
 605
 606   updated_window = NULL;
 607   NSTRACE (update_window_end);
 608 }
 609
 610
 611 static void
 612 ns_update_end (struct frame *f)
 613 /* --------------------------------------------------------------------------
 614    Finished a grouped sequence of drawing calls
 615    external (RIF) call; for whole frame, called after update_window_end
 616    -------------------------------------------------------------------------- */
 617 {
 618   NSView *view = FRAME_NS_VIEW (f);
 619
 620 /*   if (f == FRAME_NS_DISPLAY_INFO (f)->mouse_face_mouse_frame) */
 621     FRAME_NS_DISPLAY_INFO (f)->mouse_face_defer = 0;
 622
 623   BLOCK_INPUT;
 624
 625 #ifdef NS_IMPL_GNUSTEP
 626   /* trigger flush only in the rectangle we tracked as being drawn */
 627   [view unlockFocusNeedsFlush: NO];
 628 /*fprintf (stderr, " (%.0f, %.0f : %.0f x %.0f)", uRect.origin.x, uRect.origin.y, uRect.size.width, uRect.size.height); */
 629   [view lockFocusInRect: uRect];
 630 #endif
 631
 632   [view unlockFocus];
 633   [[view window] flushWindow];
 634
 635   UNBLOCK_INPUT;
 636   ns_updating_frame = NULL;
 637   NSTRACE (ns_update_end);
 638 }
 639
 640
 641 static void
 642 ns_flush (struct frame *f)
 643 /* --------------------------------------------------------------------------
 644    external (RIF) call
 645    NS impl is no-op since currently we flush in ns_update_end and elsewhere
 646    -------------------------------------------------------------------------- */
 647 {
 648     NSTRACE (ns_flush);
 649 }
 650
 651
 652 static void
 653 ns_focus (struct frame *f, NSRect *r, int n)
 654 /* --------------------------------------------------------------------------
 655    Internal: Focus on given frame.  During small local updates this is used to
 656      draw, however during large updates, ns_update_begin and ns_update_end are
 657      called to wrap the whole thing, in which case these calls are stubbed out.
 658      Except, on GNUstep, we accumulate the rectangle being drawn into, because
 659      the back end won't do this automatically, and will just end up flushing
 660      the entire window.
 661    -------------------------------------------------------------------------- */
 662 {
 663 //  NSTRACE (ns_focus);
 664 #ifdef NS_IMPL_GNUSTEP
 665   NSRect u;
 666     if (n == 2)
 667       u = NSUnionRect (r[0], r[1]);
 668     else if (r)
 669       u = *r;
 670 #endif
 671 /* static int c =0;
 672    fprintf (stderr, "focus: %d", c++);
 673    if (r) fprintf (stderr, " (%.0f, %.0f : %.0f x %.0f)", r->origin.x, r->origin.y, r->size.width, r->size.height);
 674    fprintf (stderr, "\n"); */
 675
 676   if (f != ns_updating_frame)
 677     {
 678       NSView *view = FRAME_NS_VIEW (f);
 679       if (view != focus_view)
 680         {
 681           if (focus_view != NULL)
 682             {
 683               [focus_view unlockFocus];
 684               [[focus_view window] flushWindow];
 685 /*debug_lock--; */
 686             }
 687
 688           if (view)
 689 #ifdef NS_IMPL_GNUSTEP
 690             r ? [view lockFocusInRect: u] : [view lockFocus];
 691 #else
 692             [view lockFocus];
 693 #endif
 694           focus_view = view;
 695 /*if (view) debug_lock++; */
 696         }
 697 #ifdef NS_IMPL_GNUSTEP
 698       else
 699         {
 700           /* more than one rect being drawn into */
 701           if (view && r)
 702             {
 703               [view unlockFocus]; /* add prev rect to redraw list */
 704               [view lockFocusInRect: u]; /* focus for draw in new rect */
 705             }
 706         }
 707 #endif
 708     }
 709 #ifdef NS_IMPL_GNUSTEP
 710   else
 711     {
 712       /* in batch mode, but in GNUstep must still track rectangles explicitly */
 713       uRect = (r ? NSUnionRect (uRect, u) : [FRAME_NS_VIEW (f) visibleRect]);
 714     }
 715 #endif
 716
 717   /* clipping */
 718   if (r)
 719     {
 720       [[NSGraphicsContext currentContext] saveGraphicsState];
 721       if (n == 2)
 722         NSRectClipList (r, 2);
 723       else
 724         NSRectClip (*r);
 725       gsaved = YES;
 726     }
 727 }
 728
 729
 730 static void
 731 ns_unfocus (struct frame *f)
 732 /* --------------------------------------------------------------------------
 733      Internal: Remove focus on given frame
 734    -------------------------------------------------------------------------- */
 735 {
 736 //  NSTRACE (ns_unfocus);
 737
 738   if (gsaved)
 739     {
 740       [[NSGraphicsContext currentContext] restoreGraphicsState];
 741       gsaved = NO;
 742     }
 743
 744   if (f != ns_updating_frame)
 745     {
 746       if (focus_view != NULL)
 747         {
 748           [focus_view unlockFocus];
 749           [[focus_view window] flushWindow];
 750           focus_view = NULL;
 751 /*debug_lock--; */
 752         }
 753     }
 754 }
 755
 756
 757 static void
 758 ns_clip_to_row (struct window *w, struct glyph_row *row, int area, BOOL gc)
 759 /* --------------------------------------------------------------------------
 760      Internal (but parallels other terms): Focus drawing on given row
 761    -------------------------------------------------------------------------- */
 762 {
 763   struct frame *f = XFRAME (WINDOW_FRAME (w));
 764   NSRect clip_rect;
 765   int window_x, window_y, window_width;
 766
 767   window_box (w, area, &window_x, &window_y, &window_width, 0);
 768
 769   clip_rect.origin.x = window_x - FRAME_INTERNAL_BORDER_WIDTH (f);
 770   clip_rect.origin.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y));
 771   clip_rect.origin.y = max (clip_rect.origin.y, window_y);
 772   clip_rect.size.width = window_width + 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
 773   clip_rect.size.height = row->visible_height;
 774
 775   /* allow a full-height row at the top when requested
 776      (used to draw fringe all the way through internal border area) */
 777   if (gc && clip_rect.origin.y < 5)
 778     {
 779       clip_rect.origin.y -= FRAME_INTERNAL_BORDER_WIDTH (f);
 780       clip_rect.size.height += FRAME_INTERNAL_BORDER_WIDTH (f);
 781     }
 782
 783   /* likewise at bottom */
 784   if (gc &&
 785       FRAME_PIXEL_HEIGHT (f) - (clip_rect.origin.y + clip_rect.size.height) < 5)
 786     clip_rect.size.height += FRAME_INTERNAL_BORDER_WIDTH (f);
 787
 788   ns_focus (f, &clip_rect, 1);
 789 }
 790
 791
 792 static void
 793 ns_ring_bell (struct frame *f)
 794 /* --------------------------------------------------------------------------
 795      "Beep" routine
 796    -------------------------------------------------------------------------- */
 797 {
 798   NSTRACE (ns_ring_bell);
 799   if (visible_bell)
 800     {
 801       NSAutoreleasePool *pool;
 802       struct frame *frame = SELECTED_FRAME ();
 803       NSView *view;
 804
 805       BLOCK_INPUT;
 806       pool = [[NSAutoreleasePool alloc] init];
 807
 808       view = FRAME_NS_VIEW (frame);
 809       if (view != nil)
 810         {
 811           NSRect r, surr;
 812           NSPoint dim = NSMakePoint (128, 128);
 813
 814           r = [view bounds];
 815           r.origin.x += (r.size.width - dim.x) / 2;
 816           r.origin.y += (r.size.height - dim.y) / 2;
 817           r.size.width = dim.x;
 818           r.size.height = dim.y;
 819           surr = NSInsetRect (r, -2, -2);
 820           ns_focus (frame, &surr, 1);
 821           [[view window] cacheImageInRect: [view convertRect: surr toView:nil]];
 822           [ns_lookup_indexed_color (NS_FACE_FOREGROUND
 823                                       (FRAME_DEFAULT_FACE (frame)), frame) set];
 824           NSRectFill (r);
 825           [[view window] flushWindow];
 826           ns_timeout (150000);
 827           [[view window] restoreCachedImage];
 828           [[view window] flushWindow];
 829           ns_unfocus (frame);
 830         }
 831       [pool release];
 832       UNBLOCK_INPUT;
 833     }
 834   else
 835     {
 836       NSBeep ();
 837     }
 838 }
 839
 840
 841 static void
 842 ns_reset_terminal_modes (struct terminal *terminal)
 843 /*  Externally called as hook */
 844 {
 845   NSTRACE (ns_reset_terminal_modes);
 846 }
 847
 848
 849 static void
 850 ns_set_terminal_modes (struct terminal *terminal)
 851 /*  Externally called as hook */
 852 {
 853   NSTRACE (ns_set_terminal_modes);
 854 }
 855
 856
 857
 858 /* ==========================================================================
 859
 860     Frame / window manager related functions
 861
 862    ========================================================================== */
 863
 864
 865 static void
 866 ns_raise_frame (struct frame *f)
 867 /* --------------------------------------------------------------------------
 868      Bring window to foreground and make it active
 869    -------------------------------------------------------------------------- */
 870 {
 871   NSView *view = FRAME_NS_VIEW (f);
 872   check_ns ();
 873   BLOCK_INPUT;
 874   FRAME_SAMPLE_VISIBILITY (f);
 875   if (FRAME_VISIBLE_P (f))
 876     {
 877       [[view window] makeKeyAndOrderFront: NSApp];
 878     }
 879   UNBLOCK_INPUT;
 880 }
 881
 882
 883 static void
 884 ns_lower_frame (struct frame *f)
 885 /* --------------------------------------------------------------------------
 886      Send window to back
 887    -------------------------------------------------------------------------- */
 888 {
 889   NSView *view = FRAME_NS_VIEW (f);
 890   check_ns ();
 891   BLOCK_INPUT;
 892   [[view window] orderBack: NSApp];
 893   UNBLOCK_INPUT;
 894 }
 895
 896
 897 static void
 898 ns_frame_raise_lower (struct frame *f, int raise)
 899 /* --------------------------------------------------------------------------
 900      External (hook)
 901    -------------------------------------------------------------------------- */
 902 {
 903   NSTRACE (ns_frame_raise_lower);
 904
 905   if (raise)
 906     ns_raise_frame (f);
 907   else
 908     ns_lower_frame (f);
 909 }
 910
 911
 912 static void
 913 ns_frame_rehighlight (struct frame *frame)
 914 /* --------------------------------------------------------------------------
 915      External (hook): called on things like window switching within frame
 916    -------------------------------------------------------------------------- */
 917 {
 918   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (frame);
 919   struct frame *old_highlight = dpyinfo->x_highlight_frame;
 920
 921   NSTRACE (ns_frame_rehighlight);
 922   if (dpyinfo->x_focus_frame)
 923     {
 924       dpyinfo->x_highlight_frame
 925         = (FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
 926            ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
 927            : dpyinfo->x_focus_frame);
 928       if (!FRAME_LIVE_P (dpyinfo->x_highlight_frame))
 929         {
 930           FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame) = Qnil;
 931           dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame;
 932         }
 933     }
 934   else
 935       dpyinfo->x_highlight_frame = 0;
 936
 937   if (dpyinfo->x_highlight_frame &&
 938          dpyinfo->x_highlight_frame != old_highlight)
 939     {
 940       if (old_highlight)
 941         {
 942           x_update_cursor (old_highlight, 1);
 943           x_set_frame_alpha (old_highlight);
 944         }
 945       if (dpyinfo->x_highlight_frame)
 946         {
 947           x_update_cursor (dpyinfo->x_highlight_frame, 1);
 948           x_set_frame_alpha (dpyinfo->x_highlight_frame);
 949         }
 950     }
 951 }
 952
 953
 954 void
 955 x_make_frame_visible (struct frame *f)
 956 /* --------------------------------------------------------------------------
 957      External: Show the window (X11 semantics)
 958    -------------------------------------------------------------------------- */
 959 {
 960   NSTRACE (x_make_frame_visible);
 961   /* XXX: at some points in past this was not needed, as the only place that
 962      called this (frame.c:Fraise_frame ()) also called raise_lower;
 963      if this ends up the case again, comment this out again. */
 964   if (!FRAME_VISIBLE_P (f))
 965     {
 966       f->async_visible = 1;
 967       ns_raise_frame (f);
 968     }
 969 }
 970
 971
 972 void
 973 x_make_frame_invisible (struct frame *f)
 974 /* --------------------------------------------------------------------------
 975      External: Hide the window (X11 semantics)
 976    -------------------------------------------------------------------------- */
 977 {
 978   NSView * view = FRAME_NS_VIEW (f);
 979   NSTRACE (x_make_frame_invisible);
 980   check_ns ();
 981   [[view window] orderOut: NSApp];
 982   f->async_visible = 0;
 983   f->async_iconified = 0;
 984 }
 985
 986
 987 void
 988 x_iconify_frame (struct frame *f)
 989 /* --------------------------------------------------------------------------
 990      External: Iconify window
 991    -------------------------------------------------------------------------- */
 992 {
 993   NSView * view = FRAME_NS_VIEW (f);
 994   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
 995   NSTRACE (x_iconify_frame);
 996   check_ns ();
 997
 998   if (dpyinfo->x_highlight_frame == f)
 999     dpyinfo->x_highlight_frame = 0;
1000
1001   if ([[view window] windowNumber] <= 0)
1002     {
1003       /* the window is still deferred.  Make it very small, bring it
1004          on screen and order it out. */
1005       NSRect s = { { 100, 100}, {0, 0} };
1006       NSRect t;
1007       t = [[view window] frame];
1008       [[view window] setFrame: s display: NO];
1009       [[view window] orderBack: NSApp];
1010       [[view window] orderOut: NSApp];
1011       [[view window] setFrame: t display: NO];
1012     }
1013   [[view window] miniaturize: NSApp];
1014 }
1015
1016
1017 void
1018 x_destroy_window (struct frame *f)
1019 /* --------------------------------------------------------------------------
1020      External: Delete the window
1021    -------------------------------------------------------------------------- */
1022 {
1023   NSView *view = FRAME_NS_VIEW (f);
1024   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
1025   NSTRACE (x_destroy_window);
1026   check_ns ();
1027
1028   [(EmacsView *)view setWindowClosing: YES]; /* may not have been informed */
1029
1030   BLOCK_INPUT;
1031
1032   free_frame_menubar (f);
1033
1034   if (FRAME_FACE_CACHE (f))
1035     free_frame_faces (f);
1036
1037   if (f == dpyinfo->x_focus_frame)
1038     dpyinfo->x_focus_frame = 0;
1039   if (f == dpyinfo->x_highlight_frame)
1040     dpyinfo->x_highlight_frame = 0;
1041   if (f == dpyinfo->mouse_face_mouse_frame)
1042     {
1043       dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
1044       dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
1045       dpyinfo->mouse_face_window = Qnil;
1046       dpyinfo->mouse_face_deferred_gc = 0;
1047       dpyinfo->mouse_face_mouse_frame = 0;
1048     }
1049
1050   xfree (f->output_data.ns);
1051
1052   [[view window] close];
1053   [view release];
1054
1055   ns_window_num--;
1056   UNBLOCK_INPUT;
1057 }
1058
1059
1060 void
1061 x_set_offset (struct frame *f, int xoff, int yoff, int change_grav)
1062 /* --------------------------------------------------------------------------
1063      External: Position the window
1064    -------------------------------------------------------------------------- */
1065 {
1066   NSScreen *screen;
1067   NSView *view = FRAME_NS_VIEW (f);
1068
1069   NSTRACE (x_set_offset);
1070
1071   BLOCK_INPUT;
1072
1073   f->left_pos = xoff;
1074   f->top_pos = yoff;
1075 #ifdef NS_IMPL_GNUSTEP
1076   if (xoff < 100)
1077     f->left_pos = 100;  /* don't overlap menu */
1078 #endif
1079
1080   if (view != nil && (screen = [[view window] screen]))
1081     [[view window] setFrameTopLeftPoint:
1082         NSMakePoint (SCREENMAXBOUND (f->left_pos),
1083                      SCREENMAXBOUND ([screen frame].size.height
1084                                      - NS_TOP_POS (f)))];
1085   UNBLOCK_INPUT;
1086 }
1087
1088
1089 void
1090 x_set_window_size (struct frame *f, int change_grav, int cols, int rows)
1091 /* --------------------------------------------------------------------------
1092      Adjust window pixel size based on given character grid size
1093      Impl is a bit more complex than other terms, need to do some
1094      internal clipping and also pay attention to screen constraints.
1095    -------------------------------------------------------------------------- */
1096 {
1097   EmacsView *view = FRAME_NS_VIEW (f);
1098   EmacsToolbar *toolbar = [view toolbar];
1099   NSWindow *window = [view window];
1100   NSScreen *screen = [window screen];
1101   NSRect wr = [window frame];
1102   int tb = FRAME_EXTERNAL_TOOL_BAR (f);
1103   int pixelwidth, pixelheight;
1104   static int oldRows, oldCols, oldFontWidth, oldFontHeight;
1105   static int oldTB;
1106   static struct frame *oldF;
1107
1108   NSTRACE (x_set_window_size);
1109
1110   if (view == nil ||
1111       (f == oldF
1112        && rows == oldRows && cols == oldCols
1113        && oldFontWidth == FRAME_COLUMN_WIDTH (f)
1114        && oldFontHeight == FRAME_LINE_HEIGHT (f)
1115        && oldTB == tb))
1116     return;
1117
1118 /*fprintf (stderr, "\tsetWindowSize: %d x %d, font size %d x %d\n", cols, rows, FRAME_COLUMN_WIDTH (f), FRAME_LINE_HEIGHT (f)); */
1119
1120   BLOCK_INPUT;
1121
1122   check_frame_size (f, &rows, &cols);
1123   oldF = f;
1124   oldRows = rows;
1125   oldCols = cols;
1126   oldFontWidth = FRAME_COLUMN_WIDTH (f);
1127   oldFontHeight = FRAME_LINE_HEIGHT (f);
1128   oldTB = tb;
1129
1130   f->scroll_bar_actual_width = NS_SCROLL_BAR_WIDTH (f);
1131   compute_fringe_widths (f, 0);
1132
1133   pixelwidth =  FRAME_TEXT_COLS_TO_PIXEL_WIDTH   (f, cols);
1134   pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
1135
1136   /* If we have a toolbar, take its height into account. */
1137   if (tb)
1138     /* NOTE: previously this would generate wrong result if toolbar not
1139              yet displayed and fixing toolbar_height=32 helped, but
1140              now (200903) seems no longer needed */
1141     FRAME_TOOLBAR_HEIGHT (f) =
1142       NSHeight ([window frameRectForContentRect: NSMakeRect (0, 0, 0, 0)])
1143         - FRAME_NS_TITLEBAR_HEIGHT (f);
1144   else
1145     FRAME_TOOLBAR_HEIGHT (f) = 0;
1146
1147   wr.size.width = pixelwidth + f->border_width;
1148   wr.size.height = pixelheight + FRAME_NS_TITLEBAR_HEIGHT (f)
1149                   + FRAME_TOOLBAR_HEIGHT (f);
1150
1151   /* constrain to screen if we can */
1152   if (screen)
1153     {
1154       NSSize sz = [screen visibleFrame].size;
1155       NSSize ez = { wr.size.width - sz.width, wr.size.height - sz.height };
1156       if (ez.width > 0)
1157         {
1158           int cr = ez.width / FRAME_COLUMN_WIDTH (f) + 1;
1159           cols -= cr;
1160           oldCols = cols;
1161           wr.size.width -= cr * FRAME_COLUMN_WIDTH (f);
1162           pixelwidth -= cr * FRAME_COLUMN_WIDTH (f);
1163         }
1164       if (ez.height > 0)
1165         {
1166           int rr = ez.height / FRAME_LINE_HEIGHT (f) + 1;
1167           rows -= rr;
1168           oldRows = rows;
1169           wr.size.height -= rr * FRAME_LINE_HEIGHT (f);
1170           pixelheight -= rr * FRAME_LINE_HEIGHT (f);
1171         }
1172       wr.origin.x = f->left_pos;
1173       wr.origin.y = [screen frame].size.height - NS_TOP_POS (f)
1174         - wr.size.height;
1175     }
1176
1177   [view setRows: rows andColumns: cols];
1178   [window setFrame: wr display: YES];
1179
1180 /*fprintf (stderr, "\tx_set_window_size %d, %d\t%d, %d\n", cols, rows, pixelwidth, pixelheight); */
1181
1182   /* This is a trick to compensate for Emacs' managing the scrollbar area
1183      as a fixed number of standard character columns.  Instead of leaving
1184      blank space for the extra, we chopped it off above.  Now for
1185      left-hand scrollbars, we shift all rendering to the left by the
1186      difference between the real width and Emacs' imagined one.  For
1187      right-hand bars, don't worry about it since the extra is never used.
1188      (Obviously doesn't work for vertically split windows tho..) */
1189   {
1190     NSPoint origin = FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)
1191       ? NSMakePoint (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)
1192                      - NS_SCROLL_BAR_WIDTH (f), 0)
1193       : NSMakePoint (0, 0);
1194     [view setFrame: NSMakeRect (0, 0, pixelwidth, pixelheight)];
1195     [view setBoundsOrigin: origin];
1196   }
1197
1198   change_frame_size (f, rows, cols, 0, 1, 0); /* pretend, delay, safe */
1199   FRAME_PIXEL_WIDTH (f) = pixelwidth;
1200   FRAME_PIXEL_HEIGHT (f) = pixelheight;
1201 /*  SET_FRAME_GARBAGED (f); // this short-circuits expose call in drawRect */
1202
1203   mark_window_cursors_off (XWINDOW (f->root_window));
1204   cancel_mouse_face (f);
1205
1206   UNBLOCK_INPUT;
1207 }
1208
1209
1210
1211 /* ==========================================================================
1212
1213     Color management
1214
1215    ========================================================================== */
1216
1217
1218 NSColor *
1219 ns_lookup_indexed_color (unsigned long idx, struct frame *f)
1220 {
1221   struct ns_color_table *color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;
1222   if (idx < 1 || idx >= color_table->avail)
1223     return nil;
1224   return color_table->colors[idx];
1225 }
1226
1227
1228 unsigned long
1229 ns_index_color (NSColor *color, struct frame *f)
1230 {
1231   struct ns_color_table *color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;
1232   int idx;
1233   NSNumber *index;
1234
1235   if (!color_table->colors)
1236     {
1237       color_table->size = NS_COLOR_CAPACITY;
1238       color_table->avail = 1; /* skip idx=0 as marker */
1239       color_table->colors
1240         = (NSColor **)xmalloc (color_table->size * sizeof (NSColor *));
1241       color_table->colors[0] = nil;
1242       color_table->empty_indices = [[NSMutableSet alloc] init];
1243     }
1244
1245   /* do we already have this color ? */
1246   {
1247     int i;
1248     for (i = 1; i < color_table->avail; i++)
1249       {
1250         if (color_table->colors[i] && [color_table->colors[i] isEqual: color])
1251           {
1252             [color_table->colors[i] retain];
1253             return i;
1254           }
1255       }
1256   }
1257
1258   if ([color_table->empty_indices count] > 0)
1259     {
1260       index = [color_table->empty_indices anyObject];
1261       [color_table->empty_indices removeObject: index];
1262       idx = [index unsignedIntValue];
1263     }
1264   else
1265     {
1266       if (color_table->avail == color_table->size)
1267         {
1268           color_table->size += NS_COLOR_CAPACITY;
1269           color_table->colors
1270             = (NSColor **)xrealloc (color_table->colors,
1271                                     color_table->size * sizeof (NSColor *));
1272         }
1273       idx = color_table->avail++;
1274     }
1275
1276   color_table->colors[idx] = color;
1277   [color retain];
1278 /*fprintf(stderr, "color_table: allocated %d\n",idx);*/
1279   return idx;
1280 }
1281
1282
1283 void
1284 ns_free_indexed_color (unsigned long idx, struct frame *f)
1285 {
1286   struct ns_color_table *color_table;
1287   NSColor *color;
1288   NSNumber *index;
1289
1290   if (!f)
1291     return;
1292
1293   color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;
1294
1295   if (idx <= 0 || idx >= color_table->size) {
1296     message1("ns_free_indexed_color: Color index out of range.\n");
1297     return;
1298   }
1299
1300   index = [NSNumber numberWithUnsignedInt: idx];
1301   if ([color_table->empty_indices containsObject: index]) {
1302     message1("ns_free_indexed_color: attempt to free already freed color.\n");
1303     return;
1304   }
1305
1306   color = color_table->colors[idx];
1307   [color release];
1308   color_table->colors[idx] = nil;
1309   [color_table->empty_indices addObject: [NSNumber numberWithUnsignedInt: idx]];
1310 /*fprintf(stderr, "color_table: FREED %d\n",idx);*/
1311 }
1312
1313
1314 static int
1315 ns_get_color (const char *name, NSColor **col)
1316 /* --------------------------------------------------------------------------
1317      Parse a color name
1318    -------------------------------------------------------------------------- */
1319 /* On *Step, we attempt to mimic the X11 platform here, down to installing an
1320    X11 rgb.txt-compatible color list in Emacs.clr (see ns_term_init()).
1321    See: http://thread.gmane.org/gmane.emacs.devel/113050/focus=113272). */
1322 {
1323   NSColor *new = nil;
1324   static char hex[20];
1325   int scaling;
1326   float r = -1.0, g, b;
1327   NSString *nsname = [NSString stringWithUTF8String: name];
1328
1329 /*fprintf (stderr, "ns_get_color: '%s'\n", name); */
1330   BLOCK_INPUT;
1331
1332   if ([nsname isEqualToString: @"ns_selection_color"])
1333     {
1334       nsname = ns_selection_color;
1335       name = [ns_selection_color UTF8String];
1336     }
1337
1338   /* First, check for some sort of numeric specification. */
1339   hex[0] = '\0';
1340
1341   if (name[0] == '0' || name[0] == '1' || name[0] == '.')  /* RGB decimal */
1342     {
1343       NSScanner *scanner = [NSScanner scannerWithString: nsname];
1344       [scanner scanFloat: &r];
1345       [scanner scanFloat: &g];
1346       [scanner scanFloat: &b];
1347     }
1348   else if (!strncmp(name, "rgb:", 4))  /* A newer X11 format -- rgb:r/g/b */
1349     {
1350       strncpy (hex, name + 4, 19);
1351       hex[19] = '\0';
1352       scaling = (strlen(hex) - 2) / 3;
1353     }
1354   else if (name[0] == '#')        /* An old X11 format; convert to newer */
1355     {
1356       int len = (strlen(name) - 1);
1357       int start = (len % 3 == 0) ? 1 : len / 4 + 1;
1358       int i;
1359       scaling = strlen(name+start) / 3;
1360       for (i=0; i<3; i++) {
1361         strncpy(hex + i * (scaling + 1), name + start + i * scaling, scaling);
1362         hex[(i+1) * (scaling + 1) - 1] = '/';
1363       }
1364       hex[3 * (scaling + 1) - 1] = '\0';
1365     }
1366
1367   if (hex[0])
1368     {
1369       int rr, gg, bb;
1370       float fscale = scaling == 4 ? 65535.0 : (scaling == 2 ? 255.0 : 15.0);
1371       if (sscanf (hex, "%x/%x/%x", &rr, &gg, &bb))
1372         {
1373           r = rr / fscale;
1374           g = gg / fscale;
1375           b = bb / fscale;
1376         }
1377     }
1378
1379   if (r >= 0.0)
1380     {
1381       *col = [NSColor colorWithCalibratedRed: r green: g blue: b alpha: 1.0];
1382       UNBLOCK_INPUT;
1383       return 0;
1384     }
1385
1386   /* Otherwise, color is expected to be from a list */
1387   {
1388     NSEnumerator *lenum, *cenum;
1389     NSString *name;
1390     NSColorList *clist;
1391
1392 #ifdef NS_IMPL_GNUSTEP
1393     /* XXX: who is wrong, the requestor or the implementation? */
1394     if ([nsname compare: @"Highlight" options: NSCaseInsensitiveSearch]
1395         == NSOrderedSame)
1396       nsname = @"highlightColor";
1397 #endif
1398
1399     lenum = [[NSColorList availableColorLists] objectEnumerator];
1400     while ( (clist = [lenum nextObject]) && new == nil)
1401       {
1402         cenum = [[clist allKeys] objectEnumerator];
1403         while ( (name = [cenum nextObject]) && new == nil )
1404           {
1405             if ([name compare: nsname
1406                       options: NSCaseInsensitiveSearch] == NSOrderedSame )
1407               new = [clist colorWithKey: name];
1408           }
1409       }
1410   }
1411
1412   if (new)
1413     *col = [new colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
1414   UNBLOCK_INPUT;
1415   return new ? 0 : 1;
1416 }
1417
1418
1419 static NSColor *
1420 ns_get_color_default (const char *name, NSColor *dflt)
1421 /* --------------------------------------------------------------------------
1422      Parse a color or use a default value
1423    -------------------------------------------------------------------------- */
1424 {
1425   NSColor * col;
1426
1427   if (ns_get_color (name, &col))
1428     return dflt;
1429   else
1430     return col;
1431 }
1432
1433
1434 int
1435 ns_lisp_to_color (Lisp_Object color, NSColor **col)
1436 /* --------------------------------------------------------------------------
1437      Convert a Lisp string object to a NS color
1438    -------------------------------------------------------------------------- */
1439 {
1440   NSTRACE (ns_lisp_to_color);
1441   if (STRINGP (color))
1442     return ns_get_color (SDATA (color), col);
1443   else if (SYMBOLP (color))
1444     return ns_get_color (SDATA (SYMBOL_NAME (color)), col);
1445   return 1;
1446 }
1447
1448
1449 Lisp_Object
1450 ns_color_to_lisp (NSColor *col)
1451 /* --------------------------------------------------------------------------
1452      Convert a color to a lisp string with the RGB equivalent
1453    -------------------------------------------------------------------------- */
1454 {
1455   CGFloat red, green, blue, alpha, gray;
1456   char buf[1024];
1457   const char *str;
1458   NSTRACE (ns_color_to_lisp);
1459
1460   BLOCK_INPUT;
1461   if ([[col colorSpaceName] isEqualToString: NSNamedColorSpace])
1462
1463       if ((str =[[col colorNameComponent] UTF8String]))
1464         {
1465           UNBLOCK_INPUT;
1466           return build_string ((char *)str);
1467         }
1468
1469     [[col colorUsingColorSpaceName: NSCalibratedRGBColorSpace]
1470         getRed: &red green: &green blue: &blue alpha: &alpha];
1471   if (red ==green && red ==blue)
1472     {
1473       [[col colorUsingColorSpaceName: NSCalibratedWhiteColorSpace]
1474             getWhite: &gray alpha: &alpha];
1475       snprintf (buf, sizeof (buf), "#%2.2lx%2.2lx%2.2lx",
1476                 lrint (gray * 0xff), lrint (gray * 0xff), lrint (gray * 0xff));
1477       UNBLOCK_INPUT;
1478       return build_string (buf);
1479     }
1480
1481   snprintf (buf, sizeof (buf), "#%2.2lx%2.2lx%2.2lx",
1482             lrint (red*0xff), lrint (green*0xff), lrint (blue*0xff));
1483
1484   UNBLOCK_INPUT;
1485   return build_string (buf);
1486 }
1487
1488
1489 void
1490 ns_query_color(void *col, XColor *color_def, int setPixel)
1491 /* --------------------------------------------------------------------------
1492          Get ARGB values out of NSColor col and put them into color_def.
1493          If setPixel, set the pixel to a concatenated version.
1494          and set color_def pixel to the resulting index.
1495    -------------------------------------------------------------------------- */
1496 {
1497   CGFloat r, g, b, a;
1498
1499   [((NSColor *)col) getRed: &r green: &g blue: &b alpha: &a];
1500   color_def->red   = r * 65535;
1501   color_def->green = g * 65535;
1502   color_def->blue  = b * 65535;
1503
1504   if (setPixel == YES)
1505     color_def->pixel
1506       = ARGB_TO_ULONG((int)(a*255),
1507                       (int)(r*255), (int)(g*255), (int)(b*255));
1508 }
1509
1510
1511 int
1512 ns_defined_color (struct frame *f,
1513                   const char *name,
1514                   XColor *color_def,
1515                   int alloc,
1516                   char makeIndex)
1517 /* --------------------------------------------------------------------------
1518          Return 1 if named color found, and set color_def rgb accordingly.
1519          If makeIndex and alloc are nonzero put the color in the color_table,
1520          and set color_def pixel to the resulting index.
1521          If makeIndex is zero, set color_def pixel to ARGB.
1522          Return 0 if not found
1523    -------------------------------------------------------------------------- */
1524 {
1525   NSColor *col;
1526   NSTRACE (ns_defined_color);
1527
1528   BLOCK_INPUT;
1529   if (ns_get_color (name, &col) != 0) /* Color not found  */
1530     {
1531       UNBLOCK_INPUT;
1532       return 0;
1533     }
1534   if (makeIndex && alloc)
1535     color_def->pixel = ns_index_color (col, f);
1536   ns_query_color (col, color_def, !makeIndex);
1537   UNBLOCK_INPUT;
1538   return 1;
1539 }
1540
1541
1542 unsigned long
1543 ns_get_rgb_color (struct frame *f, float r, float g, float b, float a)
1544 /* --------------------------------------------------------------------------
1545     return an autoreleased RGB color
1546    -------------------------------------------------------------------------- */
1547 {
1548 /*static int c = 1; fprintf (stderr, "color request %d\n", c++); */
1549   if (r < 0.0) r = 0.0;
1550   else if (r > 1.0) r = 1.0;
1551   if (g < 0.0) g = 0.0;
1552   else if (g > 1.0) g = 1.0;
1553   if (b < 0.0) b = 0.0;
1554   else if (b > 1.0) b = 1.0;
1555   if (a < 0.0) a = 0.0;
1556   else if (a > 1.0) a = 1.0;
1557   return (unsigned long) ns_index_color(
1558     [NSColor colorWithCalibratedRed: r green: g blue: b alpha: a], f);
1559 }
1560
1561
1562 void
1563 x_set_frame_alpha (struct frame *f)
1564 /* --------------------------------------------------------------------------
1565      change the entire-frame transparency
1566    -------------------------------------------------------------------------- */
1567 {
1568   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
1569   EmacsView *view = FRAME_NS_VIEW (f);
1570   double alpha = 1.0;
1571   double alpha_min = 1.0;
1572
1573   if (dpyinfo->x_highlight_frame == f)
1574     alpha = f->alpha[0];
1575   else
1576     alpha = f->alpha[1];
1577
1578   if (FLOATP (Vframe_alpha_lower_limit))
1579     alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
1580   else if (INTEGERP (Vframe_alpha_lower_limit))
1581     alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
1582
1583   if (alpha < 0.0)
1584     return;
1585   else if (1.0 < alpha)
1586     alpha = 1.0;
1587   else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
1588     alpha = alpha_min;
1589
1590 #ifdef NS_IMPL_COCOA
1591   [[view window] setAlphaValue: alpha];
1592 #endif
1593 }
1594
1595
1596 /* ==========================================================================
1597
1598     Mouse handling
1599
1600    ========================================================================== */
1601
1602
1603 void
1604 x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
1605 /* --------------------------------------------------------------------------
1606      Programmatically reposition mouse pointer in pixel coordinates
1607    -------------------------------------------------------------------------- */
1608 {
1609   NSTRACE (x_set_mouse_pixel_position);
1610   ns_raise_frame (f);
1611 #if 0
1612   /* FIXME: this does not work, and what about GNUstep? */
1613 #ifdef NS_IMPL_COCOA
1614   [FRAME_NS_VIEW (f) lockFocus];
1615   PSsetmouse ((float)pix_x, (float)pix_y);
1616   [FRAME_NS_VIEW (f) unlockFocus];
1617 #endif
1618 #endif
1619 }
1620
1621
1622 void
1623 x_set_mouse_position (struct frame *f, int h, int v)
1624 /* --------------------------------------------------------------------------
1625      Programmatically reposition mouse pointer in character coordinates
1626    -------------------------------------------------------------------------- */
1627 {
1628   int pix_x, pix_y;
1629
1630   pix_x = FRAME_COL_TO_PIXEL_X (f, h) + FRAME_COLUMN_WIDTH (f) / 2;
1631   pix_y = FRAME_LINE_TO_PIXEL_Y (f, v) + FRAME_LINE_HEIGHT (f) / 2;
1632
1633   if (pix_x < 0) pix_x = 0;
1634   if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
1635
1636   if (pix_y < 0) pix_y = 0;
1637   if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
1638
1639   x_set_mouse_pixel_position (f, pix_x, pix_y);
1640 }
1641
1642
1643 static int
1644 note_mouse_movement (struct frame *frame, float x, float y)
1645 /*   ------------------------------------------------------------------------
1646      Called by EmacsView on mouseMovement events.  Passes on
1647      to emacs mainstream code if we moved off of a rect of interest
1648      known as last_mouse_glyph.
1649      ------------------------------------------------------------------------ */
1650 {
1651 //  NSTRACE (note_mouse_movement);
1652
1653   XSETFRAME (last_mouse_motion_frame, frame);
1654
1655   /* Note, this doesn't get called for enter/leave, since we don't have a
1656      position.  Those are taken care of in the corresponding NSView methods. */
1657
1658   /* has movement gone beyond last rect we were tracking? */
1659   if (x < last_mouse_glyph.origin.x ||
1660       x >= (last_mouse_glyph.origin.x + last_mouse_glyph.size.width) ||
1661       y < last_mouse_glyph.origin.y ||
1662       y >= (last_mouse_glyph.origin.y + last_mouse_glyph.size.height))
1663     {
1664       ns_update_begin(frame);
1665       frame->mouse_moved = 1;
1666       note_mouse_highlight (frame, x, y);
1667       remember_mouse_glyph (frame, x, y, &last_mouse_glyph);
1668       ns_update_end(frame);
1669       return 1;
1670     }
1671
1672   return 0;
1673 }
1674
1675
1676 static void
1677 ns_mouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
1678                    enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
1679                    unsigned long *time)
1680 /* --------------------------------------------------------------------------
1681     External (hook): inform emacs about mouse position and hit parts.
1682     If a scrollbar is being dragged, set bar_window, part, x, y, time.
1683     x & y should be position in the scrollbar (the whole bar, not the handle)
1684     and length of scrollbar respectively
1685    -------------------------------------------------------------------------- */
1686 {
1687   id view;
1688   NSPoint position;
1689   int xchar, ychar;
1690   Lisp_Object frame, tail;
1691   struct frame *f;
1692   struct ns_display_info *dpyinfo;
1693
1694   NSTRACE (ns_mouse_position);
1695
1696   if (*fp == NULL)
1697     {
1698       fprintf (stderr, "Warning: ns_mouse_position () called with null *fp.\n");
1699       return;
1700     }
1701
1702   dpyinfo = FRAME_NS_DISPLAY_INFO (*fp);
1703
1704   BLOCK_INPUT;
1705
1706   if (last_mouse_scroll_bar != nil && insist == 0)
1707     {
1708       /* TODO: we do not use this path at the moment because drag events will
1709            go directly to the EmacsScroller.  Leaving code in for now. */
1710       [last_mouse_scroll_bar getMouseMotionPart: (int *)part window: bar_window
1711                                               x: x y: y];
1712       if (time) *time = last_mouse_movement_time;
1713       last_mouse_scroll_bar = nil;
1714     }
1715   else
1716     {
1717       /* Clear the mouse-moved flag for every frame on this display.  */
1718       FOR_EACH_FRAME (tail, frame)
1719         if (FRAME_NS_P (XFRAME (frame))
1720             && FRAME_NS_DISPLAY (XFRAME (frame)) == FRAME_NS_DISPLAY (*fp))
1721           XFRAME (frame)->mouse_moved = 0;
1722
1723       last_mouse_scroll_bar = nil;
1724       if (last_mouse_frame && FRAME_LIVE_P (last_mouse_frame))
1725         f = last_mouse_frame;
1726       else
1727         f = dpyinfo->x_focus_frame ? dpyinfo->x_focus_frame
1728                                     : SELECTED_FRAME ();
1729
1730       if (f && f->output_data.ns)  /* TODO: 2nd check no longer needed? */
1731         {
1732           view = FRAME_NS_VIEW (*fp);
1733
1734           position = [[view window] mouseLocationOutsideOfEventStream];
1735           position = [view convertPoint: position fromView: nil];
1736           remember_mouse_glyph (f, position.x, position.y, &last_mouse_glyph);
1737 /*fprintf (stderr, "ns_mouse_position: %.0f, %.0f\n", position.x, position.y); */
1738
1739           if (bar_window) *bar_window = Qnil;
1740           if (part) *part = 0; /*scroll_bar_handle; */
1741
1742           if (x) XSETINT (*x, lrint (position.x));
1743           if (y) XSETINT (*y, lrint (position.y));
1744           if (time) *time = last_mouse_movement_time;
1745           *fp = f;
1746         }
1747     }
1748
1749   UNBLOCK_INPUT;
1750 }
1751
1752
1753 static void
1754 ns_frame_up_to_date (struct frame *f)
1755 /* --------------------------------------------------------------------------
1756     External (hook): Fix up mouse highlighting right after a full update.
1757     Some highlighting was deferred if GC was happening during
1758     note_mouse_highlight (), while other highlighting was deferred for update.
1759    -------------------------------------------------------------------------- */
1760 {
1761   NSTRACE (ns_frame_up_to_date);
1762
1763   if (FRAME_NS_P (f))
1764     {
1765       struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
1766       if ((dpyinfo->mouse_face_deferred_gc||f ==dpyinfo->mouse_face_mouse_frame)
1767       /*&& dpyinfo->mouse_face_mouse_frame*/)
1768         {
1769           BLOCK_INPUT;
1770          ns_update_begin(f);
1771           if (dpyinfo->mouse_face_mouse_frame)
1772             note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
1773                                   dpyinfo->mouse_face_mouse_x,
1774                                   dpyinfo->mouse_face_mouse_y);
1775           dpyinfo->mouse_face_deferred_gc = 0;
1776          ns_update_end(f);
1777           UNBLOCK_INPUT;
1778         }
1779     }
1780 }
1781
1782
1783 void
1784 ns_define_frame_cursor (struct frame *f, Cursor cursor)
1785 /* --------------------------------------------------------------------------
1786     External (RIF): set frame mouse pointer type.
1787    -------------------------------------------------------------------------- */
1788 {
1789   NSTRACE (ns_define_frame_cursor);
1790   if (FRAME_POINTER_TYPE (f) != cursor)
1791     {
1792       EmacsView *view = FRAME_NS_VIEW (f);
1793       FRAME_POINTER_TYPE (f) = cursor;
1794       [[view window] invalidateCursorRectsForView: view];
1795       /* Redisplay assumes this function also draws the changed frame
1796          cursor, but this function doesn't, so do it explicitly.  */
1797       x_update_cursor (f, 1);
1798     }
1799 }
1800
1801
1802
1803 /* ==========================================================================
1804
1805     Keyboard handling
1806
1807    ========================================================================== */
1808
1809
1810 static unsigned
1811 ns_convert_key (unsigned code)
1812 /* --------------------------------------------------------------------------
1813     Internal call used by NSView-keyDown.
1814    -------------------------------------------------------------------------- */
1815 {
1816   const unsigned last_keysym = (sizeof (convert_ns_to_X_keysym)
1817                                 / sizeof (convert_ns_to_X_keysym[0]));
1818   unsigned keysym;
1819   /* An array would be faster, but less easy to read. */
1820   for (keysym = 0; keysym < last_keysym; keysym += 2)
1821     if (code == convert_ns_to_X_keysym[keysym])
1822       return 0xFF00 | convert_ns_to_X_keysym[keysym+1];
1823   return 0;
1824 /* if decide to use keyCode and Carbon table, use this line:
1825      return code > 0xff ? 0 : 0xFF00 | ns_keycode_to_xkeysym_table[code]; */
1826 }
1827
1828
1829 char *
1830 x_get_keysym_name (int keysym)
1831 /* --------------------------------------------------------------------------
1832     Called by keyboard.c.  Not sure if the return val is important, except
1833     that it be unique.
1834    -------------------------------------------------------------------------- */
1835 {
1836   static char value[16];
1837   NSTRACE (x_get_keysym_name);
1838   sprintf (value, "%d", keysym);
1839   return value;
1840 }
1841
1842
1843
1844 /* ==========================================================================
1845
1846     Block drawing operations
1847
1848    ========================================================================== */
1849
1850
1851 static void
1852 ns_redraw_scroll_bars (struct frame *f)
1853 {
1854   int i;
1855   id view;
1856   NSArray *subviews = [[FRAME_NS_VIEW (f) superview] subviews];
1857   NSTRACE (ns_judge_scroll_bars);
1858   for (i =[subviews count]-1; i >= 0; i--)
1859     {
1860       view = [subviews objectAtIndex: i];
1861       if (![view isKindOfClass: [EmacsScroller class]]) continue;
1862       [view display];
1863     }
1864 }
1865
1866
1867 void
1868 ns_clear_frame (struct frame *f)
1869 /* --------------------------------------------------------------------------
1870       External (hook): Erase the entire frame
1871    -------------------------------------------------------------------------- */
1872 {
1873   NSView *view = FRAME_NS_VIEW (f);
1874   NSRect r;
1875
1876   NSTRACE (ns_clear_frame);
1877   if (ns_in_resize)
1878     return;
1879
1880  /* comes on initial frame because we have
1881     after-make-frame-functions = select-frame */
1882  if (!FRAME_DEFAULT_FACE (f))
1883    return;
1884
1885   mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
1886
1887   output_cursor.hpos = output_cursor.vpos = 0;
1888   output_cursor.x = -1;
1889
1890   r = [view bounds];
1891
1892   BLOCK_INPUT;
1893   ns_focus (f, &r, 1);
1894   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (FRAME_DEFAULT_FACE (f)), f) set];
1895   NSRectFill (r);
1896   ns_unfocus (f);
1897
1898 #ifdef NS_IMPL_COCOA
1899   [[view window] display];  /* redraw resize handle */
1900 #endif
1901
1902   /* as of 2006/11 or so this is now needed */
1903   ns_redraw_scroll_bars (f);
1904   UNBLOCK_INPUT;
1905 }
1906
1907
1908 void
1909 ns_clear_frame_area (struct frame *f, int x, int y, int width, int height)
1910 /* --------------------------------------------------------------------------
1911     External (RIF):  Clear section of frame
1912    -------------------------------------------------------------------------- */
1913 {
1914   NSRect r = NSMakeRect (x, y, width, height);
1915   NSView *view = FRAME_NS_VIEW (f);
1916   struct face *face = FRAME_DEFAULT_FACE (f);
1917
1918   if (!view || !face)
1919     return;
1920
1921   NSTRACE (ns_clear_frame_area);
1922
1923   r = NSIntersectionRect (r, [view frame]);
1924   ns_focus (f, &r, 1);
1925   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), f) set];
1926
1927 #ifdef NS_IMPL_COCOA
1928   {
1929     /* clip out the resize handle */
1930     NSWindow *window = [FRAME_NS_VIEW (f) window];
1931     NSRect ir
1932       = [view convertRect: ns_resize_handle_rect (window) fromView: nil];
1933
1934     ir = NSIntersectionRect (r, ir);
1935     if (NSIsEmptyRect (ir))
1936       {
1937 #endif
1938
1939   NSRectFill (r);
1940
1941 #ifdef NS_IMPL_COCOA
1942       }
1943     else
1944       {
1945         NSRect r1 = r, r2 = r; /* upper and lower non-intersecting */
1946         r1.size.height -= ir.size.height;
1947         r2.origin.y += r1.size.height;
1948         r2.size.width -= ir.size.width;
1949         r2.size.height = ir.size.height;
1950         NSRectFill (r1);
1951         NSRectFill (r2);
1952       }
1953   }
1954 #endif
1955
1956   ns_unfocus (f);
1957   return;
1958 }
1959
1960
1961 static void
1962 ns_scroll_run (struct window *w, struct run *run)
1963 /* --------------------------------------------------------------------------
1964     External (RIF):  Insert or delete n lines at line vpos
1965    -------------------------------------------------------------------------- */
1966 {
1967   struct frame *f = XFRAME (w->frame);
1968   int x, y, width, height, from_y, to_y, bottom_y;
1969
1970   NSTRACE (ns_scroll_run);
1971
1972   /* begin copy from other terms */
1973   /* Get frame-relative bounding box of the text display area of W,
1974      without mode lines.  Include in this box the left and right
1975      fringe of W.  */
1976   window_box (w, -1, &x, &y, &width, &height);
1977
1978   from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
1979   to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
1980   bottom_y = y + height;
1981
1982   if (to_y < from_y)
1983     {
1984       /* Scrolling up.  Make sure we don't copy part of the mode
1985          line at the bottom.  */
1986       if (from_y + run->height > bottom_y)
1987         height = bottom_y - from_y;
1988       else
1989         height = run->height;
1990     }
1991   else
1992     {
1993       /* Scolling down.  Make sure we don't copy over the mode line.
1994          at the bottom.  */
1995       if (to_y + run->height > bottom_y)
1996         height = bottom_y - to_y;
1997       else
1998         height = run->height;
1999     }
2000   /* end copy from other terms */
2001
2002   if (height == 0)
2003       return;
2004
2005   BLOCK_INPUT;
2006
2007   updated_window = w;
2008   x_clear_cursor (w);
2009
2010   {
2011     NSRect srcRect = NSMakeRect (x, from_y, width, height);
2012     NSRect dstRect = NSMakeRect (x, to_y, width, height);
2013     NSPoint dstOrigin = NSMakePoint (x, to_y);
2014
2015     ns_focus (f, &dstRect, 1);
2016     NSCopyBits (0, srcRect , dstOrigin);
2017     ns_unfocus (f);
2018   }
2019
2020   UNBLOCK_INPUT;
2021 }
2022
2023
2024 static void
2025 ns_after_update_window_line (struct glyph_row *desired_row)
2026 /* --------------------------------------------------------------------------
2027     External (RIF): preparatory to fringe update after text was updated
2028    -------------------------------------------------------------------------- */
2029 {
2030   struct window *w = updated_window;
2031   struct frame *f;
2032   int width, height;
2033
2034   NSTRACE (ns_after_update_window_line);
2035
2036   /* begin copy from other terms */
2037   xassert (w);
2038
2039   if (!desired_row->mode_line_p && !w->pseudo_window_p)
2040     desired_row->redraw_fringe_bitmaps_p = 1;
2041
2042   /* When a window has disappeared, make sure that no rest of
2043      full-width rows stays visible in the internal border.
2044      Under NS this is drawn inside the fringes. */
2045   if (windows_or_buffers_changed
2046       && (f = XFRAME (w->frame),
2047           width = FRAME_INTERNAL_BORDER_WIDTH (f),
2048           width != 0)
2049       && (height = desired_row->visible_height,
2050           height > 0))
2051     {
2052       int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
2053
2054       /* Internal border is drawn below the tool bar.  */
2055       if (WINDOWP (f->tool_bar_window)
2056           && w == XWINDOW (f->tool_bar_window))
2057         y -= width;
2058       /* end copy from other terms */
2059
2060       BLOCK_INPUT;
2061       if (!desired_row->full_width_p)
2062         {
2063           int x1 = WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)
2064             + WINDOW_LEFT_FRINGE_WIDTH (w);
2065           int x2 = WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)
2066             + FRAME_PIXEL_WIDTH (f) - NS_SCROLL_BAR_WIDTH (f)
2067             - WINDOW_RIGHT_FRINGE_WIDTH (w)
2068             - FRAME_INTERNAL_BORDER_WIDTH (f);
2069           ns_clear_frame_area (f, x1, y, width, height);
2070           ns_clear_frame_area (f, x2, y, width, height);
2071         }
2072       UNBLOCK_INPUT;
2073     }
2074 }
2075
2076
2077 static void
2078 ns_shift_glyphs_for_insert (struct frame *f,
2079                            int x, int y, int width, int height,
2080                            int shift_by)
2081 /* --------------------------------------------------------------------------
2082     External (RIF): copy an area horizontally, don't worry about clearing src
2083    -------------------------------------------------------------------------- */
2084 {
2085   NSRect srcRect = NSMakeRect (x, y, width, height);
2086   NSRect dstRect = NSMakeRect (x+shift_by, y, width, height);
2087   NSPoint dstOrigin = dstRect.origin;
2088
2089   NSTRACE (ns_shift_glyphs_for_insert);
2090
2091   ns_focus (f, &dstRect, 1);
2092   NSCopyBits (0, srcRect, dstOrigin);
2093   ns_unfocus (f);
2094 }
2095
2096
2097
2098 /* ==========================================================================
2099
2100     Character encoding and metrics
2101
2102    ========================================================================== */
2103
2104
2105 static inline void
2106 ns_compute_glyph_string_overhangs (struct glyph_string *s)
2107 /* --------------------------------------------------------------------------
2108      External (RIF); compute left/right overhang of whole string and set in s
2109    -------------------------------------------------------------------------- */
2110 {
2111   struct face *face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
2112   struct font *font = s->font; /*face->font; */
2113
2114   if (s->char2b)
2115     {
2116       struct font_metrics metrics;
2117       unsigned int codes[2];
2118       codes[0] = *(s->char2b);
2119       codes[1] = *(s->char2b + s->nchars - 1);
2120
2121       font->driver->text_extents (font, codes, 2, &metrics);
2122       s->left_overhang = -metrics.lbearing;
2123       s->right_overhang
2124         = metrics.rbearing > metrics.width
2125         ? metrics.rbearing - metrics.width : 0;
2126     }
2127   else
2128     {
2129       s->left_overhang = 0;
2130       s->right_overhang = ((struct nsfont_info *)font)->ital ?
2131         FONT_HEIGHT (font) * 0.2 : 0;
2132     }
2133 }
2134
2135
2136
2137 /* ==========================================================================
2138
2139     Fringe and cursor drawing
2140
2141    ========================================================================== */
2142
2143
2144 extern int max_used_fringe_bitmap;
2145 static void
2146 ns_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
2147                       struct draw_fringe_bitmap_params *p)
2148 /* --------------------------------------------------------------------------
2149     External (RIF); fringe-related
2150    -------------------------------------------------------------------------- */
2151 {
2152   struct frame *f = XFRAME (WINDOW_FRAME (w));
2153   struct face *face = p->face;
2154   int rowY;
2155   static EmacsImage **bimgs = NULL;
2156   static int nBimgs = 0;
2157   /* NS-specific: move internal border inside fringe */
2158   int x = p->bx < 0 ? p->x : p->bx;
2159   int wd = p->bx < 0 ? p->wd : p->nx;
2160   BOOL fringeOnVeryLeft
2161     = x - WINDOW_LEFT_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)
2162       - FRAME_INTERNAL_BORDER_WIDTH (f) < 10;
2163   BOOL fringeOnVeryRight
2164     = FRAME_PIXEL_WIDTH (f) - x - wd - FRAME_INTERNAL_BORDER_WIDTH (f)
2165       - WINDOW_RIGHT_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w) < 10;
2166   int xAdjust = FRAME_INTERNAL_BORDER_WIDTH (f) *
2167     (fringeOnVeryLeft ? -1 : (fringeOnVeryRight ? 1 : 0));
2168
2169   /* grow bimgs if needed */
2170   if (nBimgs < max_used_fringe_bitmap)
2171     {
2172       EmacsImage **newBimgs
2173         = xmalloc (max_used_fringe_bitmap * sizeof (EmacsImage *));
2174       memset (newBimgs, 0, max_used_fringe_bitmap * sizeof (EmacsImage *));
2175
2176       if (nBimgs)
2177         {
2178           memcpy (newBimgs, bimgs, nBimgs * sizeof (EmacsImage *));
2179           xfree (bimgs);
2180         }
2181
2182       bimgs = newBimgs;
2183       nBimgs = max_used_fringe_bitmap;
2184     }
2185
2186   /* Must clip because of partially visible lines.  */
2187   rowY = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
2188   ns_clip_to_row (w, row, -1, YES);
2189
2190   if (p->bx >= 0 && !p->overlay_p)
2191     {
2192       int yAdjust = rowY - FRAME_INTERNAL_BORDER_WIDTH (f) < 5 ?
2193         -FRAME_INTERNAL_BORDER_WIDTH (f) : 0;
2194       int yIncr = FRAME_PIXEL_HEIGHT (f) - (p->by+yAdjust + p->ny) < 5 ?
2195         FRAME_INTERNAL_BORDER_WIDTH (f) : 0
2196         + (yAdjust ? FRAME_INTERNAL_BORDER_WIDTH (f) : 0);
2197       NSRect r = NSMakeRect (p->bx+xAdjust, p->by+yAdjust, p->nx, p->ny+yIncr);
2198       NSRectClip (r);
2199       [ns_lookup_indexed_color(face->background, f) set];
2200       NSRectFill (r);
2201     }
2202
2203   if (p->which)
2204     {
2205       NSRect r = NSMakeRect (p->x+xAdjust, p->y, p->wd, p->h);
2206       NSPoint pt = r.origin;
2207       EmacsImage *img = bimgs[p->which - 1];
2208
2209       if (!img)
2210         {
2211           unsigned short *bits = p->bits + p->dh;
2212           int len = 8 * p->h/8;
2213           int i;
2214           unsigned char *cbits = xmalloc (len);
2215
2216           for (i =0; i<len; i++)
2217             cbits[i] = ~(bits[i] & 0xff);
2218           img = [[EmacsImage alloc] initFromXBM: cbits width: 8 height: p->h
2219                                            flip: NO];
2220           bimgs[p->which - 1] = img;
2221           xfree (cbits);
2222         }
2223
2224       NSRectClip (r);
2225       /* Since we composite the bitmap instead of just blitting it, we need
2226          to erase the whole background. */
2227       [ns_lookup_indexed_color(face->background, f) set];
2228       NSRectFill (r);
2229       pt.y += p->h;
2230       [img setXBMColor: ns_lookup_indexed_color(face->foreground, f)];
2231       [img compositeToPoint: pt operation: NSCompositeSourceOver];
2232     }
2233   ns_unfocus (f);
2234 }
2235
2236
2237 void
2238 ns_draw_window_cursor (struct window *w, struct glyph_row *glyph_row,
2239                        int x, int y, int cursor_type, int cursor_width,
2240                        int on_p, int active_p)
2241 /* --------------------------------------------------------------------------
2242      External call (RIF): draw cursor
2243      (modeled after x_draw_window_cursor
2244      FIXME: cursor_width is effectively bogus -- it sometimes gets set
2245      in xdisp.c set_frame_cursor_types, sometimes left uninitialized;
2246      DON'T USE IT (no other terms do)
2247    -------------------------------------------------------------------------- */
2248 {
2249   NSRect r, s;
2250   int fx, fy, h;
2251   struct frame *f = WINDOW_XFRAME (w);
2252   struct glyph *phys_cursor_glyph;
2253   int overspill;
2254   struct glyph *cursor_glyph;
2255
2256   /* If cursor is out of bounds, don't draw garbage.  This can happen
2257      in mini-buffer windows when switching between echo area glyphs
2258      and mini-buffer.  */
2259
2260   NSTRACE (dumpcursor);
2261 //fprintf(stderr, "drawcursor (%d,%d) activep = %d\tonp = %d\tc_type = %d\twidth = %d\n",x,y, active_p,on_p,cursor_type,cursor_width);
2262
2263   if (!on_p)
2264         return;
2265
2266   w->phys_cursor_type = cursor_type;
2267   w->phys_cursor_on_p = on_p;
2268
2269   if (cursor_type == NO_CURSOR)
2270     {
2271       w->phys_cursor_width = 0;
2272       return;
2273     }
2274
2275   if ((phys_cursor_glyph = get_phys_cursor_glyph (w)) == NULL)
2276     {
2277       if (glyph_row->exact_window_width_line_p
2278           && w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])
2279         {
2280           glyph_row->cursor_in_fringe_p = 1;
2281           draw_fringe_bitmap (w, glyph_row, 0);
2282         }
2283       return;
2284     }
2285
2286   get_phys_cursor_geometry (w, glyph_row, phys_cursor_glyph, &fx, &fy, &h);
2287
2288   r.origin.x = fx, r.origin.y = fy;
2289   r.size.height = h;
2290   r.size.width = w->phys_cursor_width;
2291
2292   /* FIXME: if we overwrite the internal border area, it does not get erased;
2293      fix by truncating cursor, but better would be to erase properly */
2294   overspill = r.origin.x + r.size.width -
2295     WINDOW_TEXT_TO_FRAME_PIXEL_X (w, WINDOW_BOX_RIGHT_EDGE_X (w)
2296       - WINDOW_TOTAL_FRINGE_WIDTH (w) - FRAME_INTERNAL_BORDER_WIDTH (f));
2297   if (overspill > 0)
2298     r.size.width -= overspill;
2299
2300   /* TODO: only needed in rare cases with last-resort font in HELLO..
2301      should we do this more efficiently? */
2302   ns_clip_to_row (w, glyph_row, -1, NO); /* do ns_focus(f, &r, 1); if remove */
2303   [FRAME_CURSOR_COLOR (f) set];
2304
2305 #ifdef NS_IMPL_COCOA
2306   /* TODO: This makes drawing of cursor plus that of phys_cursor_glyph
2307            atomic.  Cleaner ways of doing this should be investigated.
2308            One way would be to set a global variable DRAWING_CURSOR
2309            when making the call to draw_phys..(), don't focus in that
2310            case, then move the ns_unfocus() here after that call. */
2311   NSDisableScreenUpdates ();
2312 #endif
2313
2314   switch (cursor_type)
2315     {
2316     case NO_CURSOR:
2317       break;
2318     case FILLED_BOX_CURSOR:
2319       NSRectFill (r);
2320       break;
2321     case HOLLOW_BOX_CURSOR:
2322       NSRectFill (r);
2323       [FRAME_BACKGROUND_COLOR (f) set];
2324       NSRectFill (NSInsetRect (r, 1, 1));
2325       [FRAME_CURSOR_COLOR (f) set];
2326       break;
2327     case HBAR_CURSOR:
2328       s = r;
2329       s.origin.y += lrint (0.75 * s.size.height);
2330       s.size.height = lrint (s.size.height * 0.25);
2331       NSRectFill (s);
2332       break;
2333     case BAR_CURSOR:
2334       s = r;
2335       s.size.width = min (cursor_width, 2); //FIXME(see above)
2336
2337       /* If the character under cursor is R2L, draw the bar cursor
2338          on the right of its glyph, rather than on the left.  */
2339       cursor_glyph = get_phys_cursor_glyph (w);
2340       if ((cursor_glyph->resolved_level & 1) != 0)
2341         s.origin.x += cursor_glyph->pixel_width - s.size.width;
2342
2343       NSRectFill (s);
2344       break;
2345     }
2346   ns_unfocus (f);
2347
2348   /* draw the character under the cursor */
2349   if (cursor_type != NO_CURSOR)
2350     draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
2351
2352 #ifdef NS_IMPL_COCOA
2353   NSEnableScreenUpdates ();
2354 #endif
2355
2356 }
2357
2358
2359 static void
2360 ns_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
2361 /* --------------------------------------------------------------------------
2362      External (RIF): Draw a vertical line.
2363    -------------------------------------------------------------------------- */
2364 {
2365   struct frame *f = XFRAME (WINDOW_FRAME (w));
2366   struct face *face;
2367   NSRect r = NSMakeRect (x, y0, 1, y1-y0);
2368
2369   NSTRACE (ns_draw_vertical_window_border);
2370
2371   face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
2372   if (face)
2373       [ns_lookup_indexed_color(face->foreground, f) set];
2374
2375   ns_focus (f, &r, 1);
2376   NSRectFill(r);
2377   ns_unfocus (f);
2378 }
2379
2380
2381 void
2382 show_hourglass (struct atimer *timer)
2383 {
2384   if (hourglass_shown_p)
2385     return;
2386
2387   BLOCK_INPUT;
2388
2389   /* TODO: add NSProgressIndicator to selected frame (see macfns.c) */
2390
2391   hourglass_shown_p = 1;
2392   UNBLOCK_INPUT;
2393 }
2394
2395
2396 void
2397 hide_hourglass (void)
2398 {
2399   if (!hourglass_shown_p)
2400     return;
2401
2402   BLOCK_INPUT;
2403
2404   /* TODO: remove NSProgressIndicator from all frames */
2405
2406   hourglass_shown_p = 0;
2407   UNBLOCK_INPUT;
2408 }
2409
2410
2411
2412 /* ==========================================================================
2413
2414     Glyph drawing operations
2415
2416    ========================================================================== */
2417
2418
2419 static inline NSRect
2420 ns_fix_rect_ibw (NSRect r, int fibw, int frame_pixel_width)
2421 /* --------------------------------------------------------------------------
2422     Under NS we draw internal borders inside fringes, and want full-width
2423     rendering to go all the way to edge.  This function makes that correction.
2424    -------------------------------------------------------------------------- */
2425 {
2426   if (r.origin.y <= fibw+1)
2427     {
2428       r.size.height += r.origin.y;
2429       r.origin.y = 0;
2430     }
2431   if (r.origin.x <= fibw+1)
2432     {
2433       r.size.width += r.origin.x;
2434       r.origin.x = 0;
2435     }
2436   if (frame_pixel_width - (r.origin.x+r.size.width) <= fibw+1)
2437     r.size.width += fibw;
2438
2439   return r;
2440 }
2441
2442
2443 static int
2444 ns_get_glyph_string_clip_rect (struct glyph_string *s, NativeRectangle *nr)
2445 /* --------------------------------------------------------------------------
2446     Wrapper utility to account for internal border width on full-width lines,
2447     and allow top full-width rows to hit the frame top.  nr should be pointer
2448     to two successive NSRects.  Number of rects actually used is returned.
2449    -------------------------------------------------------------------------- */
2450 {
2451   int n = get_glyph_string_clip_rects (s, nr, 2);
2452   if (s->row->full_width_p)
2453     {
2454       *nr = ns_fix_rect_ibw (*nr, FRAME_INTERNAL_BORDER_WIDTH (s->f),
2455                             FRAME_PIXEL_WIDTH (s->f));
2456       if (n == 2)
2457         *nr = ns_fix_rect_ibw (*(nr+1), FRAME_INTERNAL_BORDER_WIDTH (s->f),
2458                               FRAME_PIXEL_WIDTH (s->f));
2459     }
2460   return n;
2461 }
2462
2463
2464 static void
2465 ns_draw_box (NSRect r, float thickness, NSColor *col, char left_p, char right_p)
2466 /* --------------------------------------------------------------------------
2467     Draw an unfilled rect inside r, optionally leaving left and/or right open.
2468     Note we can't just use an NSDrawRect command, because of the possibility
2469     of some sides not being drawn, and because the rect will be filled.
2470    -------------------------------------------------------------------------- */
2471 {
2472   NSRect s = r;
2473   [col set];
2474
2475   /* top, bottom */
2476   s.size.height = thickness;
2477   NSRectFill (s);
2478   s.origin.y += r.size.height - thickness;
2479   NSRectFill (s);
2480
2481   s.size.height = r.size.height;
2482   s.origin.y = r.origin.y;
2483
2484   /* left, right (optional) */
2485   s.size.width = thickness;
2486   if (left_p)
2487     NSRectFill (s);
2488   if (right_p)
2489     {
2490       s.origin.x += r.size.width - thickness;
2491       NSRectFill (s);
2492     }
2493 }
2494
2495
2496 static void
2497 ns_draw_relief (NSRect r, int thickness, char raised_p,
2498                char top_p, char bottom_p, char left_p, char right_p,
2499                struct glyph_string *s)
2500 /* --------------------------------------------------------------------------
2501     Draw a relief rect inside r, optionally leaving some sides open.
2502     Note we can't just use an NSDrawBezel command, because of the possibility
2503     of some sides not being drawn, and because the rect will be filled.
2504    -------------------------------------------------------------------------- */
2505 {
2506   static NSColor *baseCol = nil, *lightCol = nil, *darkCol = nil;
2507   NSColor *newBaseCol = nil;
2508   NSRect sr = r;
2509
2510   NSTRACE (ns_draw_relief);
2511
2512   /* set up colors */
2513
2514   if (s->face->use_box_color_for_shadows_p)
2515     {
2516       newBaseCol = ns_lookup_indexed_color (s->face->box_color, s->f);
2517     }
2518 /*     else if (s->first_glyph->type == IMAGE_GLYPH
2519            && s->img->pixmap
2520            && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
2521        {
2522          newBaseCol = IMAGE_BACKGROUND  (s->img, s->f, 0);
2523        } */
2524   else
2525     {
2526       newBaseCol = ns_lookup_indexed_color (s->face->background, s->f);
2527     }
2528
2529   if (newBaseCol == nil)
2530     newBaseCol = [NSColor grayColor];
2531
2532   if (newBaseCol != baseCol)  /* TODO: better check */
2533     {
2534       [baseCol release];
2535       baseCol = [newBaseCol retain];
2536       [lightCol release];
2537       lightCol = [[baseCol highlightWithLevel: 0.2] retain];
2538       [darkCol release];
2539       darkCol = [[baseCol shadowWithLevel: 0.3] retain];
2540     }
2541
2542   [(raised_p ? lightCol : darkCol) set];
2543
2544   /* TODO: mitering. Using NSBezierPath doesn't work because of color switch. */
2545
2546   /* top */
2547   sr.size.height = thickness;
2548   if (top_p) NSRectFill (sr);
2549
2550   /* left */
2551   sr.size.height = r.size.height;
2552   sr.size.width = thickness;
2553   if (left_p) NSRectFill (sr);
2554
2555   [(raised_p ? darkCol : lightCol) set];
2556
2557   /* bottom */
2558   sr.size.width = r.size.width;
2559   sr.size.height = thickness;
2560   sr.origin.y += r.size.height - thickness;
2561   if (bottom_p) NSRectFill (sr);
2562
2563   /* right */
2564   sr.size.height = r.size.height;
2565   sr.origin.y = r.origin.y;
2566   sr.size.width = thickness;
2567   sr.origin.x += r.size.width - thickness;
2568   if (right_p) NSRectFill (sr);
2569 }
2570
2571
2572 static void
2573 ns_dumpglyphs_box_or_relief (struct glyph_string *s)
2574 /* --------------------------------------------------------------------------
2575       Function modeled after x_draw_glyph_string_box ().
2576       Sets up parameters for drawing.
2577    -------------------------------------------------------------------------- */
2578 {
2579   int right_x, last_x;
2580   char left_p, right_p;
2581   struct glyph *last_glyph;
2582   NSRect r;
2583   int thickness;
2584   struct face *face;
2585
2586   if (s->hl == DRAW_MOUSE_FACE)
2587     {
2588       face = FACE_FROM_ID
2589         (s->f, FRAME_NS_DISPLAY_INFO (s->f)->mouse_face_face_id);
2590       if (!face)
2591         face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
2592     }
2593   else
2594     face = s->face;
2595
2596   thickness = face->box_line_width;
2597
2598   NSTRACE (ns_dumpglyphs_box_or_relief);
2599
2600   last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
2601             ? WINDOW_RIGHT_EDGE_X (s->w)
2602             : window_box_right (s->w, s->area));
2603   last_glyph = (s->cmp || s->img
2604                 ? s->first_glyph : s->first_glyph + s->nchars-1);
2605
2606   right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
2607               ? last_x - 1 : min (last_x, s->x + s->background_width) - 1));
2608
2609   left_p = (s->first_glyph->left_box_line_p
2610             || (s->hl == DRAW_MOUSE_FACE
2611                 && (s->prev == NULL || s->prev->hl != s->hl)));
2612   right_p = (last_glyph->right_box_line_p
2613              || (s->hl == DRAW_MOUSE_FACE
2614                  && (s->next == NULL || s->next->hl != s->hl)));
2615
2616   r = NSMakeRect (s->x, s->y, right_x - s->x + 1, s->height);
2617
2618   /* expand full-width row over internal borders */
2619   if (s->row->full_width_p)
2620     r = ns_fix_rect_ibw (r, FRAME_INTERNAL_BORDER_WIDTH (s->f),
2621                         FRAME_PIXEL_WIDTH (s->f));
2622
2623   /* TODO: Sometimes box_color is 0 and this seems wrong; should investigate. */
2624   if (s->face->box == FACE_SIMPLE_BOX && s->face->box_color)
2625     {
2626       ns_draw_box (r, abs (thickness),
2627                    ns_lookup_indexed_color (face->box_color, s->f),
2628                   left_p, right_p);
2629     }
2630   else
2631     {
2632       ns_draw_relief (r, abs (thickness), s->face->box == FACE_RAISED_BOX,
2633                      1, 1, left_p, right_p, s);
2634     }
2635 }
2636
2637
2638 static void
2639 ns_maybe_dumpglyphs_background (struct glyph_string *s, char force_p)
2640 /* --------------------------------------------------------------------------
2641       Modeled after x_draw_glyph_string_background, which draws BG in
2642       certain cases.  Others are left to the text rendering routine.
2643    -------------------------------------------------------------------------- */
2644 {
2645   NSTRACE (ns_maybe_dumpglyphs_background);
2646
2647   if (!s->background_filled_p/* || s->hl == DRAW_MOUSE_FACE*/)
2648     {
2649       int box_line_width = max (s->face->box_line_width, 0);
2650       if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
2651           || s->font_not_found_p || s->extends_to_end_of_line_p || force_p)
2652         {
2653           struct face *face;
2654           if (s->hl == DRAW_MOUSE_FACE)
2655             {
2656               face = FACE_FROM_ID
2657                 (s->f, FRAME_NS_DISPLAY_INFO (s->f)->mouse_face_face_id);
2658               if (!face)
2659                 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
2660             }
2661           else
2662             face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
2663           if (!face->stipple)
2664             [(NS_FACE_BACKGROUND (face) != 0
2665               ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f)
2666               : FRAME_BACKGROUND_COLOR (s->f)) set];
2667           else
2668             {
2669               struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (s->f);
2670               [[dpyinfo->bitmaps[face->stipple-1].img stippleMask] set];
2671             }
2672
2673           if (s->hl != DRAW_CURSOR)
2674             {
2675               NSRect r = NSMakeRect (s->x, s->y + box_line_width,
2676                                     s->background_width,
2677                                     s->height-2*box_line_width);
2678
2679               /* expand full-width row over internal borders */
2680               if (s->row->full_width_p)
2681                 {
2682                   int fibw = FRAME_INTERNAL_BORDER_WIDTH (s->f);
2683                   if (r.origin.y <= fibw+1 + box_line_width)
2684                     {
2685                       r.size.height += r.origin.y;
2686                       r.origin.y = 0;
2687                     }
2688                   if (r.origin.x <= fibw+1)
2689                     {
2690                       r.size.width += 2*r.origin.x;
2691                       r.origin.x = 0;
2692                     }
2693                   if (FRAME_PIXEL_WIDTH (s->f) - (r.origin.x + r.size.width)
2694                       <= fibw+1)
2695                     r.size.width += fibw;
2696                 }
2697
2698               NSRectFill (r);
2699             }
2700
2701           s->background_filled_p = 1;
2702         }
2703     }
2704 }
2705
2706
2707 static void
2708 ns_dumpglyphs_image (struct glyph_string *s, NSRect r)
2709 /* --------------------------------------------------------------------------
2710       Renders an image and associated borders.
2711    -------------------------------------------------------------------------- */
2712 {
2713   EmacsImage *img = s->img->pixmap;
2714   int box_line_vwidth = max (s->face->box_line_width, 0);
2715   int x = s->x, y = s->ybase - image_ascent (s->img, s->face, &s->slice);
2716   int bg_x, bg_y, bg_height;
2717   int th;
2718   char raised_p;
2719   NSRect br;
2720   struct face *face;
2721
2722   NSTRACE (ns_dumpglyphs_image);
2723
2724   if (s->face->box != FACE_NO_BOX
2725       && s->first_glyph->left_box_line_p && s->slice.x == 0)
2726     x += abs (s->face->box_line_width);
2727
2728   bg_x = x;
2729   bg_y =  s->slice.y == 0 ? s->y : s->y + box_line_vwidth;
2730   bg_height = s->height;
2731   /* other terms have this, but was causing problems w/tabbar mode */
2732   /* - 2 * box_line_vwidth; */
2733
2734   if (s->slice.x == 0) x += s->img->hmargin;
2735   if (s->slice.y == 0) y += s->img->vmargin;
2736
2737   /* Draw BG: if we need larger area than image itself cleared, do that,
2738      otherwise, since we composite the image under NS (instead of mucking
2739      with its background color), we must clear just the image area. */
2740   if (s->hl == DRAW_MOUSE_FACE)
2741     {
2742       face = FACE_FROM_ID
2743        (s->f, FRAME_NS_DISPLAY_INFO (s->f)->mouse_face_face_id);
2744       if (!face)
2745        face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
2746     }
2747   else
2748     face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
2749
2750   [ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) set];
2751
2752   if (bg_height > s->slice.height || s->img->hmargin || s->img->vmargin
2753       || s->img->mask || s->img->pixmap == 0 || s->width != s->background_width)
2754     {
2755       br = NSMakeRect (bg_x, bg_y, s->background_width, bg_height);
2756       s->background_filled_p = 1;
2757     }
2758   else
2759     {
2760       br = NSMakeRect (x, y, s->slice.width, s->slice.height);
2761     }
2762
2763   /* expand full-width row over internal borders */
2764   if (s->row->full_width_p)
2765     {
2766       int fibw = FRAME_INTERNAL_BORDER_WIDTH (s->f);
2767       if (br.origin.y <= fibw+1 + box_line_vwidth)
2768         {
2769           br.size.height += br.origin.y;
2770           br.origin.y = 0;
2771         }
2772       if (br.origin.x <= fibw+1 + box_line_vwidth)
2773         {
2774           br.size.width += br.origin.x;
2775           br.origin.x = 0;
2776         }
2777       if (FRAME_PIXEL_WIDTH (s->f) - (br.origin.x + br.size.width) <= fibw+1)
2778         br.size.width += fibw;
2779     }
2780
2781   NSRectFill (br);
2782
2783   /* Draw the image.. do we need to draw placeholder if img ==nil? */
2784   if (img != nil)
2785     [img compositeToPoint: NSMakePoint (x, y + s->slice.height)
2786                 operation: NSCompositeSourceOver];
2787
2788   /* Draw relief, if requested */
2789   if (s->img->relief || s->hl ==DRAW_IMAGE_RAISED || s->hl ==DRAW_IMAGE_SUNKEN)
2790     {
2791       if (s->hl == DRAW_IMAGE_SUNKEN || s->hl == DRAW_IMAGE_RAISED)
2792         {
2793           th = tool_bar_button_relief >= 0 ?
2794             tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
2795           raised_p = (s->hl == DRAW_IMAGE_RAISED);
2796         }
2797       else
2798         {
2799           th = abs (s->img->relief);
2800           raised_p = (s->img->relief > 0);
2801         }
2802
2803       r.origin.x = x - th;
2804       r.origin.y = y - th;
2805       r.size.width = s->slice.width + 2*th-1;
2806       r.size.height = s->slice.height + 2*th-1;
2807       ns_draw_relief (r, th, raised_p,
2808                       s->slice.y == 0,
2809                       s->slice.y + s->slice.height == s->img->height,
2810                       s->slice.x == 0,
2811                       s->slice.x + s->slice.width == s->img->width, s);
2812     }
2813 }
2814
2815
2816 static void
2817 ns_dumpglyphs_stretch (struct glyph_string *s)
2818 {
2819   NSRect r[2];
2820   int n, i;
2821   struct face *face;
2822
2823   if (!s->background_filled_p)
2824     {
2825       n = ns_get_glyph_string_clip_rect (s, r);
2826       *r = NSMakeRect (s->x, s->y, s->background_width, s->height);
2827
2828       for (i=0; i<n; i++)
2829         {
2830           if (!s->row->full_width_p)
2831             {
2832               /* truncate to avoid overwriting fringe and/or scrollbar */
2833               int overrun = max (0, (s->x + s->background_width)
2834                                   - (WINDOW_BOX_RIGHT_EDGE_X (s->w)
2835                                     - WINDOW_RIGHT_FRINGE_WIDTH (s->w)));
2836               r[i].size.width -= overrun;
2837
2838               /* XXX: Try to work between problem where a stretch glyph on
2839                  a partially-visible bottom row will clear part of the
2840                  modeline, and another where list-buffers headers and similar
2841                  rows erroneously have visible_height set to 0.  Not sure
2842                  where this is coming from as other terms seem not to show. */
2843               r[i].size.height = min (s->height, s->row->visible_height);
2844             }
2845
2846           /* expand full-width rows over internal borders */
2847           else
2848             {
2849               r[i] = ns_fix_rect_ibw (r[i], FRAME_INTERNAL_BORDER_WIDTH (s->f),
2850                                       FRAME_PIXEL_WIDTH (s->f));
2851             }
2852
2853           /* NOTE: under NS this is NOT used to draw cursors, but we must avoid
2854              overwriting cursor (usually when cursor on a tab) */
2855           if (s->hl == DRAW_CURSOR)
2856             {
2857               r[i].origin.x += s->width;
2858               r[i].size.width -= s->width;
2859             }
2860         }
2861
2862       ns_focus (s->f, r, n);
2863
2864       if (s->hl == DRAW_MOUSE_FACE)
2865        {
2866          face = FACE_FROM_ID
2867            (s->f, FRAME_NS_DISPLAY_INFO (s->f)->mouse_face_face_id);
2868          if (!face)
2869            face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
2870        }
2871       else
2872        face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
2873
2874       [ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) set];
2875
2876       NSRectFill (r[0]);
2877       NSRectFill (r[1]);
2878       ns_unfocus (s->f);
2879       s->background_filled_p = 1;
2880     }
2881 }
2882
2883
2884 static void
2885 ns_draw_glyph_string (struct glyph_string *s)
2886 /* --------------------------------------------------------------------------
2887       External (RIF): Main draw-text call.
2888    -------------------------------------------------------------------------- */
2889 {
2890   /* TODO (optimize): focus for box and contents draw */
2891   NSRect r[2];
2892   int n;
2893   char box_drawn_p = 0;
2894
2895   NSTRACE (ns_draw_glyph_string);
2896
2897   if (s->next && s->right_overhang && !s->for_overlaps/*&&s->hl!=DRAW_CURSOR*/)
2898     {
2899       int width;
2900       struct glyph_string *next;
2901
2902       for (width = 0, next = s->next;
2903            next && width < s->right_overhang;
2904            width += next->width, next = next->next)
2905         if (next->first_glyph->type != IMAGE_GLYPH)
2906           {
2907             if (next->first_glyph->type != STRETCH_GLYPH)
2908               {
2909                 n = ns_get_glyph_string_clip_rect (s->next, r);
2910                 ns_focus (s->f, r, n);
2911                 ns_maybe_dumpglyphs_background (s->next, 1);
2912                 ns_unfocus (s->f);
2913               }
2914             else
2915               {
2916                 ns_dumpglyphs_stretch (s->next);
2917               }
2918             next->num_clips = 0;
2919           }
2920     }
2921
2922   if (!s->for_overlaps && s->face->box != FACE_NO_BOX
2923         && (s->first_glyph->type == CHAR_GLYPH
2924             || s->first_glyph->type == COMPOSITE_GLYPH))
2925     {
2926       n = ns_get_glyph_string_clip_rect (s, r);
2927       ns_focus (s->f, r, n);
2928       ns_maybe_dumpglyphs_background (s, 1);
2929       ns_dumpglyphs_box_or_relief (s);
2930       ns_unfocus (s->f);
2931       box_drawn_p = 1;
2932     }
2933
2934   switch (s->first_glyph->type)
2935     {
2936
2937     case IMAGE_GLYPH:
2938       n = ns_get_glyph_string_clip_rect (s, r);
2939       ns_focus (s->f, r, n);
2940       ns_dumpglyphs_image (s, r[0]);
2941       ns_unfocus (s->f);
2942       break;
2943
2944     case STRETCH_GLYPH:
2945       ns_dumpglyphs_stretch (s);
2946       break;
2947
2948     case CHAR_GLYPH:
2949     case COMPOSITE_GLYPH:
2950       n = ns_get_glyph_string_clip_rect (s, r);
2951       ns_focus (s->f, r, n);
2952
2953       if (s->for_overlaps || (s->cmp_from > 0
2954                               && ! s->first_glyph->u.cmp.automatic))
2955         s->background_filled_p = 1;
2956       else
2957         ns_maybe_dumpglyphs_background
2958           (s, s->first_glyph->type == COMPOSITE_GLYPH);
2959
2960       ns_tmp_flags = s->hl == DRAW_CURSOR ? NS_DUMPGLYPH_CURSOR :
2961                     (s->hl == DRAW_MOUSE_FACE ? NS_DUMPGLYPH_MOUSEFACE :
2962                      (s->for_overlaps ? NS_DUMPGLYPH_FOREGROUND :
2963                       NS_DUMPGLYPH_NORMAL));
2964       ns_tmp_font = (struct nsfont_info *)s->face->font;
2965       if (ns_tmp_font == NULL)
2966           ns_tmp_font = (struct nsfont_info *)FRAME_FONT (s->f);
2967
2968       ns_tmp_font->font.driver->draw
2969         (s, 0, s->nchars, s->x, s->y,
2970          (ns_tmp_flags == NS_DUMPGLYPH_NORMAL && !s->background_filled_p)
2971          || ns_tmp_flags == NS_DUMPGLYPH_MOUSEFACE);
2972
2973       ns_unfocus (s->f);
2974       break;
2975
2976     default:
2977       abort ();
2978     }
2979
2980   /* Draw box if not done already. */
2981   if (!s->for_overlaps && !box_drawn_p && s->face->box != FACE_NO_BOX)
2982     {
2983       n = ns_get_glyph_string_clip_rect (s, r);
2984       ns_focus (s->f, r, n);
2985       ns_dumpglyphs_box_or_relief (s);
2986       ns_unfocus (s->f);
2987     }
2988
2989   s->num_clips = 0;
2990 }
2991
2992
2993
2994 /* ==========================================================================
2995
2996     Event loop
2997
2998    ========================================================================== */
2999
3000
3001 static void
3002 ns_send_appdefined (int value)
3003 /* --------------------------------------------------------------------------
3004     Internal: post an appdefined event which EmacsApp-sendEvent will
3005               recognize and take as a command to halt the event loop.
3006    -------------------------------------------------------------------------- */
3007 {
3008   /*NSTRACE (ns_send_appdefined); */
3009
3010   /* Only post this event if we haven't already posted one.  This will end
3011        the [NXApp run] main loop after having processed all events queued at
3012        this moment.  */
3013   if (send_appdefined)
3014     {
3015       NSEvent *nxev;
3016
3017       /* We only need one NX_APPDEFINED event to stop NXApp from running.  */
3018       send_appdefined = NO;
3019
3020       /* Don't need wakeup timer any more */
3021       if (timed_entry)
3022         {
3023           [timed_entry invalidate];
3024           [timed_entry release];
3025           timed_entry = nil;
3026         }
3027
3028       /* Ditto for file descriptor poller */
3029       if (fd_entry)
3030         {
3031           [fd_entry invalidate];
3032           [fd_entry release];
3033           fd_entry = nil;
3034         }
3035
3036       nxev = [NSEvent otherEventWithType: NSApplicationDefined
3037                                 location: NSMakePoint (0, 0)
3038                            modifierFlags: 0
3039                                timestamp: 0
3040                             windowNumber: [[NSApp mainWindow] windowNumber]
3041                                  context: [NSApp context]
3042                                  subtype: 0
3043                                    data1: value
3044                                    data2: 0];
3045
3046       /* Post an application defined event on the event queue.  When this is
3047          received the [NXApp run] will return, thus having processed all
3048          events which are currently queued.  */
3049       [NSApp postEvent: nxev atStart: NO];
3050     }
3051 }
3052
3053
3054 static int
3055 ns_read_socket (struct terminal *terminal, int expected,
3056                 struct input_event *hold_quit)
3057 /* --------------------------------------------------------------------------
3058      External (hook): Post an event to ourself and keep reading events until
3059      we read it back again.  In effect process all events which were waiting.
3060      From 21+ we have to manage the event buffer ourselves.
3061    -------------------------------------------------------------------------- */
3062 {
3063   struct input_event ev;
3064   int nevents;
3065
3066 /* NSTRACE (ns_read_socket); */
3067
3068   if (interrupt_input_blocked)
3069     {
3070       interrupt_input_pending = 1;
3071 #ifdef SYNC_INPUT
3072       pending_signals = 1;
3073 #endif
3074       return -1;
3075     }
3076
3077   interrupt_input_pending = 0;
3078 #ifdef SYNC_INPUT
3079   pending_signals = pending_atimers;
3080 #endif
3081
3082   BLOCK_INPUT;
3083   n_emacs_events_pending = 0;
3084   EVENT_INIT (ev);
3085   emacs_event = &ev;
3086   q_event_ptr = hold_quit;
3087
3088   /* we manage autorelease pools by allocate/reallocate each time around
3089      the loop; strict nesting is occasionally violated but seems not to
3090      matter.. earlier methods using full nesting caused major memory leaks */
3091   [outerpool release];
3092   outerpool = [[NSAutoreleasePool alloc] init];
3093
3094   /* If have pending open-file requests, attend to the next one of those. */
3095   if (ns_pending_files && [ns_pending_files count] != 0
3096       && [(EmacsApp *)NSApp openFile: [ns_pending_files objectAtIndex: 0]])
3097     {
3098       [ns_pending_files removeObjectAtIndex: 0];
3099     }
3100   /* Deal with pending service requests. */
3101   else if (ns_pending_service_names && [ns_pending_service_names count] != 0
3102     && [(EmacsApp *)
3103          NSApp fulfillService: [ns_pending_service_names objectAtIndex: 0]
3104                       withArg: [ns_pending_service_args objectAtIndex: 0]])
3105     {
3106       [ns_pending_service_names removeObjectAtIndex: 0];
3107       [ns_pending_service_args removeObjectAtIndex: 0];
3108     }
3109   else
3110     {
3111       /* Run and wait for events.  We must always send one NX_APPDEFINED event
3112          to ourself, otherwise [NXApp run] will never exit.  */
3113       send_appdefined = YES;
3114
3115       /* If called via ns_select, this is called once with expected=1,
3116          because we expect either the timeout or file descriptor activity.
3117          In this case the first event through will either be real input or
3118          one of these.  read_avail_input() then calls once more with expected=0
3119          and in that case we need to return quickly if there is nothing.
3120          If we're being called outside of that, it's also OK to return quickly
3121          after one iteration through the event loop, since other terms do
3122          this and emacs expects it. */
3123       if (!(inNsSelect && expected))
3124         {
3125           /* Post an application defined event on the event queue.  When this is
3126              received the [NXApp run] will return, thus having processed all
3127              events which are currently queued, if any.  */
3128           ns_send_appdefined (-1);
3129         }
3130
3131       [NSApp run];
3132     }
3133
3134   nevents = n_emacs_events_pending;
3135   n_emacs_events_pending = 0;
3136   emacs_event = q_event_ptr = NULL;
3137   UNBLOCK_INPUT;
3138
3139   return nevents;
3140 }
3141
3142
3143 int
3144 ns_select (int nfds, fd_set *readfds, fd_set *writefds,
3145            fd_set *exceptfds, struct timeval *timeout)
3146 /* --------------------------------------------------------------------------
3147      Replacement for select, checking for events
3148    -------------------------------------------------------------------------- */
3149 {
3150   int result;
3151   double time;
3152   NSEvent *ev;
3153 /*  NSTRACE (ns_select); */
3154
3155   if (NSApp == nil || inNsSelect == 1 /* || ([NSApp isActive] == NO &&
3156                       [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil
3157  inMode:NSDefaultRunLoopMode dequeue:NO] == nil) */)
3158     return select (nfds, readfds, writefds, exceptfds, timeout);
3159
3160   /* Save file descriptor set, which gets overwritten in calls to select ()
3161      Note, this is called from process.c, and only readfds is ever set */
3162   if (readfds)
3163     {
3164       memcpy (&select_readfds, readfds, sizeof (fd_set));
3165       select_nfds = nfds;
3166     }
3167   else
3168     select_nfds = 0;
3169
3170     /* Try an initial select for pending data on input files */
3171   select_timeout.tv_sec = select_timeout.tv_usec = 0;
3172   result = select (nfds, readfds, writefds, exceptfds, &select_timeout);
3173   if (result)
3174     return result;
3175
3176   /* if (!timeout || timed_entry || fd_entry)
3177        fprintf (stderr, "assertion failed: timeout null or timed_entry/fd_entry non-null in ns_select\n"); */
3178
3179     /* set a timeout and run the main AppKit event loop while continuing
3180        to monitor the files */
3181   time = ((double) timeout->tv_sec) + ((double) timeout->tv_usec)/1000000.0;
3182   timed_entry = [[NSTimer scheduledTimerWithTimeInterval: time
3183                                            target: NSApp
3184                                          selector: @selector (timeout_handler:)
3185                                          userInfo: 0
3186                                           repeats: YES] /* for safe removal */
3187                                                          retain];
3188
3189   /* set a periodic task to try the select () again */
3190   fd_entry = [[NSTimer scheduledTimerWithTimeInterval: 0.1
3191                                                target: NSApp
3192                                              selector: @selector (fd_handler:)
3193                                              userInfo: 0
3194                                               repeats: YES]
3195                retain];
3196
3197   /* Let Application dispatch events until it receives an event of the type
3198      NX_APPDEFINED, which should only be sent by timeout_handler.
3199      We tell read_avail_input() that input is "expected" because we do expect
3200      either the timeout or fd handler to fire, and if they don't, the original
3201      call from process.c that got us here expects us to wait until some input
3202      comes. */
3203   inNsSelect = 1;
3204   gobble_input (1);
3205   ev = last_appdefined_event;
3206   inNsSelect = 0;
3207
3208   if (ev)
3209     {
3210       int t;
3211       if ([ev type] != NSApplicationDefined)
3212         abort ();
3213
3214       t = [ev data1];
3215       last_appdefined_event = 0;
3216
3217       if (t == -2)
3218         {
3219           /* The NX_APPDEFINED event we received was a timeout. */
3220           return 0;
3221         }
3222       else if (t == -1)
3223         {
3224           /* The NX_APPDEFINED event we received was the result of
3225              at least one real input event arriving.  */
3226           errno = EINTR;
3227           return -1;
3228         }
3229       else
3230         {
3231           /* Received back from select () in fd_handler; copy the results */
3232           if (readfds)
3233             memcpy (readfds, &select_readfds, sizeof (fd_set));
3234           return t;
3235         }
3236     }
3237   /* never reached, shut compiler up */
3238   return 0;
3239 }
3240
3241
3242
3243 /* ==========================================================================
3244
3245     Scrollbar handling
3246
3247    ========================================================================== */
3248
3249
3250 static void
3251 ns_set_vertical_scroll_bar (struct window *window,
3252                            int portion, int whole, int position)
3253 /* --------------------------------------------------------------------------
3254       External (hook): Update or add scrollbar
3255    -------------------------------------------------------------------------- */
3256 {
3257   Lisp_Object win;
3258   NSRect r, v;
3259   struct frame *f = XFRAME (WINDOW_FRAME (window));
3260   EmacsView *view = FRAME_NS_VIEW (f);
3261   int window_y, window_height;
3262   BOOL barOnVeryLeft, barOnVeryRight;
3263   int top, left, height, width, sb_width, sb_left;
3264   EmacsScroller *bar;
3265 static int count = 0;
3266
3267   /* optimization; display engine sends WAY too many of these.. */
3268   if (!NILP (window->vertical_scroll_bar))
3269     {
3270       bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
3271       if ([bar checkSamePosition: position portion: portion whole: whole])
3272         {
3273           if (view->scrollbarsNeedingUpdate == 0)
3274             {
3275               if (!windows_or_buffers_changed)
3276                   return;
3277             }
3278           else
3279             view->scrollbarsNeedingUpdate--;
3280         }
3281     }
3282
3283   NSTRACE (ns_set_vertical_scroll_bar);
3284
3285   /* Get dimensions.  */
3286   window_box (window, -1, 0, &window_y, 0, &window_height);
3287   top = window_y;
3288   height = window_height;
3289   width = WINDOW_CONFIG_SCROLL_BAR_COLS (window) * FRAME_COLUMN_WIDTH (f);
3290   left = WINDOW_SCROLL_BAR_AREA_X (window);
3291
3292   if (top < 5) /* top scrollbar adjustment */
3293     {
3294       top -= FRAME_INTERNAL_BORDER_WIDTH (f);
3295       height += FRAME_INTERNAL_BORDER_WIDTH (f);
3296     }
3297
3298   /* allow for displaying a skinnier scrollbar than char area allotted */
3299   sb_width = (WINDOW_CONFIG_SCROLL_BAR_WIDTH (window) > 0) ?
3300     WINDOW_CONFIG_SCROLL_BAR_WIDTH (window) : width;
3301
3302   barOnVeryLeft = left < 5;
3303   barOnVeryRight = FRAME_PIXEL_WIDTH (f) - left - width < 5;
3304   sb_left = left + FRAME_INTERNAL_BORDER_WIDTH (f)
3305       * (barOnVeryLeft ? -1 : (barOnVeryRight ? 1 : 0));
3306
3307   r = NSMakeRect (sb_left, top, sb_width, height);
3308   /* the parent view is flipped, so we need to flip y value */
3309   v = [view frame];
3310   r.origin.y = (v.size.height - r.size.height - r.origin.y);
3311
3312   XSETWINDOW (win, window);
3313   BLOCK_INPUT;
3314
3315   /* we want at least 5 lines to display a scrollbar */
3316   if (WINDOW_TOTAL_LINES (window) < 5)
3317     {
3318       if (!NILP (window->vertical_scroll_bar))
3319         {
3320           bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
3321           [bar removeFromSuperview];
3322           window->vertical_scroll_bar = Qnil;
3323         }
3324       ns_clear_frame_area (f, sb_left, top, width, height);
3325       UNBLOCK_INPUT;
3326       return;
3327     }
3328
3329   if (NILP (window->vertical_scroll_bar))
3330     {
3331       ns_clear_frame_area (f, sb_left, top, width, height);
3332       bar = [[EmacsScroller alloc] initFrame: r window: win];
3333       window->vertical_scroll_bar = make_save_value (bar, 0);
3334     }
3335   else
3336     {
3337       NSRect oldRect;
3338       bar = XNS_SCROLL_BAR (window->vertical_scroll_bar);
3339       oldRect = [bar frame];
3340       r.size.width = oldRect.size.width;
3341       if (FRAME_LIVE_P (f) && !NSEqualRects (oldRect, r))
3342         {
3343           if (oldRect.origin.x != r.origin.x)
3344               ns_clear_frame_area (f, sb_left, top, width, height);
3345           [bar setFrame: r];
3346         }
3347     }
3348
3349   [bar setPosition: position portion: portion whole: whole];
3350   UNBLOCK_INPUT;
3351 }
3352
3353
3354 static void
3355 ns_condemn_scroll_bars (struct frame *f)
3356 /* --------------------------------------------------------------------------
3357      External (hook): arrange for all frame's scrollbars to be removed
3358      at next call to judge_scroll_bars, except for those redeemed.
3359    -------------------------------------------------------------------------- */
3360 {
3361   int i;
3362   id view;
3363   NSArray *subviews = [[FRAME_NS_VIEW (f) superview] subviews];
3364
3365   NSTRACE (ns_condemn_scroll_bars);
3366
3367   for (i =[subviews count]-1; i >= 0; i--)
3368     {
3369       view = [subviews objectAtIndex: i];
3370       if ([view isKindOfClass: [EmacsScroller class]])
3371         [view condemn];
3372     }
3373 }
3374
3375
3376 static void
3377 ns_redeem_scroll_bar (struct window *window)
3378 /* --------------------------------------------------------------------------
3379      External (hook): arrange to spare this window's scrollbar
3380      at next call to judge_scroll_bars.
3381    -------------------------------------------------------------------------- */
3382 {
3383   id bar;
3384   NSTRACE (ns_redeem_scroll_bar);
3385   if (!NILP (window->vertical_scroll_bar))
3386     {
3387       bar =XNS_SCROLL_BAR (window->vertical_scroll_bar);
3388       [bar reprieve];
3389     }
3390 }
3391
3392
3393 static void
3394 ns_judge_scroll_bars (struct frame *f)
3395 /* --------------------------------------------------------------------------
3396      External (hook): destroy all scrollbars on frame that weren't
3397      redeemed after call to condemn_scroll_bars.
3398    -------------------------------------------------------------------------- */
3399 {
3400   int i;
3401   id view;
3402   NSArray *subviews = [[FRAME_NS_VIEW (f) superview] subviews];
3403   NSTRACE (ns_judge_scroll_bars);
3404   for (i =[subviews count]-1; i >= 0; i--)
3405     {
3406       view = [subviews objectAtIndex: i];
3407       if (![view isKindOfClass: [EmacsScroller class]]) continue;
3408       [view judge];
3409     }
3410 }
3411
3412
3413 void
3414 x_wm_set_icon_position (struct frame *f, int icon_x, int icon_y)
3415 {
3416   /* XXX irrelevant under NS */
3417 }
3418
3419
3420
3421 /* ==========================================================================
3422
3423     Initialization
3424
3425    ========================================================================== */
3426
3427 int
3428 x_display_pixel_height (struct ns_display_info *dpyinfo)
3429 {
3430   NSScreen *screen = [NSScreen mainScreen];
3431   return [screen frame].size.height;
3432 }
3433
3434 int
3435 x_display_pixel_width (struct ns_display_info *dpyinfo)
3436 {
3437   NSScreen *screen = [NSScreen mainScreen];
3438   return [screen frame].size.width;
3439 }
3440
3441
3442 static Lisp_Object ns_string_to_lispmod (const char *s)
3443 /* --------------------------------------------------------------------------
3444      Convert modifier name to lisp symbol
3445    -------------------------------------------------------------------------- */
3446 {
3447   if (!strncmp (SDATA (SYMBOL_NAME (Qmeta)), s, 10))
3448     return Qmeta;
3449   else if (!strncmp (SDATA (SYMBOL_NAME (Qsuper)), s, 10))
3450     return Qsuper;
3451   else if (!strncmp (SDATA (SYMBOL_NAME (Qcontrol)), s, 10))
3452     return Qcontrol;
3453   else if (!strncmp (SDATA (SYMBOL_NAME (Qalt)), s, 10))
3454     return Qalt;
3455   else if (!strncmp (SDATA (SYMBOL_NAME (Qhyper)), s, 10))
3456     return Qhyper;
3457   else if (!strncmp (SDATA (SYMBOL_NAME (Qnone)), s, 10))
3458     return Qnone;
3459   else
3460     return Qnil;
3461 }
3462
3463
3464 static Lisp_Object ns_mod_to_lisp (int m)
3465 /* --------------------------------------------------------------------------
3466      Convert modifier code (see lisp.h) to lisp symbol
3467    -------------------------------------------------------------------------- */
3468 {
3469   if (m == CHAR_META)
3470     return Qmeta;
3471   else if (m == CHAR_SUPER)
3472     return Qsuper;
3473   else if (m == CHAR_CTL)
3474     return Qcontrol;
3475   else if (m == CHAR_ALT)
3476     return Qalt;
3477   else if (m == CHAR_HYPER)
3478     return Qhyper;
3479   else /* if (m == 0) */
3480     return Qnone;
3481 }
3482
3483
3484 static void
3485 ns_default (const char *parameter, Lisp_Object *result,
3486            Lisp_Object yesval, Lisp_Object noval,
3487            BOOL is_float, BOOL is_modstring)
3488 /* --------------------------------------------------------------------------
3489       Check a parameter value in user's preferences
3490    -------------------------------------------------------------------------- */
3491 {
3492   const char *value;
3493
3494   if ( (value =[[[NSUserDefaults standardUserDefaults]
3495                    stringForKey: [NSString stringWithUTF8String: parameter]]
3496                 UTF8String]) )
3497     {
3498       double f;
3499       char *pos;
3500       if (strcasecmp (value, "YES") == 0)
3501         *result = yesval;
3502       else if (strcasecmp (value, "NO") == 0)
3503         *result = noval;
3504       else if (is_float && (f = strtod (value, &pos), pos != value))
3505         *result = make_float (f);
3506       else if (is_modstring && value)
3507         *result = ns_string_to_lispmod (value);
3508       else fprintf (stderr,
3509                    "Bad value for default \"%s\": \"%s\"\n", parameter, value);
3510     }
3511 }
3512
3513
3514 void
3515 ns_initialize_display_info (struct ns_display_info *dpyinfo)
3516 /* --------------------------------------------------------------------------
3517       Initialize global info and storage for display.
3518    -------------------------------------------------------------------------- */
3519 {
3520     NSScreen *screen = [NSScreen mainScreen];
3521     NSWindowDepth depth = [screen depth];
3522
3523     dpyinfo->resx = 72.27; /* used 75.0, but this makes pt == pixel, expected */
3524     dpyinfo->resy = 72.27;
3525     dpyinfo->color_p = ![NSDeviceWhiteColorSpace isEqualToString:
3526                                                   NSColorSpaceFromDepth (depth)]
3527                 && ![NSCalibratedWhiteColorSpace isEqualToString:
3528                                                  NSColorSpaceFromDepth (depth)];
3529     dpyinfo->n_planes = NSBitsPerPixelFromDepth (depth);
3530     dpyinfo->image_cache = make_image_cache ();
3531     dpyinfo->color_table
3532       = (struct ns_color_table *)xmalloc (sizeof (struct ns_color_table));
3533     dpyinfo->color_table->colors = NULL;
3534     dpyinfo->root_window = 42; /* a placeholder.. */
3535
3536     dpyinfo->mouse_face_mouse_frame = NULL;
3537     dpyinfo->mouse_face_deferred_gc = 0;
3538     dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
3539     dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
3540     dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID;
3541     dpyinfo->mouse_face_window = dpyinfo->mouse_face_overlay = Qnil;
3542     dpyinfo->mouse_face_hidden = 0;
3543
3544     dpyinfo->mouse_face_mouse_x = dpyinfo->mouse_face_mouse_y = 0;
3545     dpyinfo->mouse_face_defer = 0;
3546
3547     dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame = NULL;
3548
3549     dpyinfo->n_fonts = 0;
3550     dpyinfo->smallest_font_height = 1;
3551     dpyinfo->smallest_char_width = 1;
3552 }
3553
3554
3555 /* This and next define (many of the) public functions in this file. */
3556 /* x_... are generic versions in xdisp.c that we, and other terms, get away
3557          with using despite presence in the "system dependent" redisplay
3558          interface.  In addition, many of the ns_ methods have code that is
3559          shared with all terms, indicating need for further refactoring. */
3560 extern frame_parm_handler ns_frame_parm_handlers[];
3561 static struct redisplay_interface ns_redisplay_interface =
3562 {
3563   ns_frame_parm_handlers,
3564   x_produce_glyphs,
3565   x_write_glyphs,
3566   x_insert_glyphs,
3567   x_clear_end_of_line,
3568   ns_scroll_run,
3569   ns_after_update_window_line,
3570   ns_update_window_begin,
3571   ns_update_window_end,
3572   x_cursor_to,
3573   ns_flush,
3574   0, /* flush_display_optional */
3575   x_clear_window_mouse_face,
3576   x_get_glyph_overhangs,
3577   x_fix_overlapping_area,
3578   ns_draw_fringe_bitmap,
3579   0, /* define_fringe_bitmap */ /* FIXME: simplify ns_draw_fringe_bitmap */
3580   0, /* destroy_fringe_bitmap */
3581   ns_compute_glyph_string_overhangs,
3582   ns_draw_glyph_string, /* interface to nsfont.m */
3583   ns_define_frame_cursor,
3584   ns_clear_frame_area,
3585   ns_draw_window_cursor,
3586   ns_draw_vertical_window_border,
3587   ns_shift_glyphs_for_insert
3588 };
3589
3590
3591 static void
3592 ns_delete_display (struct ns_display_info *dpyinfo)
3593 {
3594   /* TODO... */
3595 }
3596
3597
3598 /* This function is called when the last frame on a display is deleted. */
3599 static void
3600 ns_delete_terminal (struct terminal *terminal)
3601 {
3602   struct ns_display_info *dpyinfo = terminal->display_info.ns;
3603   int i;
3604
3605   /* Protect against recursive calls.  delete_frame in
3606      delete_terminal calls us back when it deletes our last frame.  */
3607   if (!terminal->name)
3608     return;
3609
3610   BLOCK_INPUT;
3611
3612   x_destroy_all_bitmaps (dpyinfo);
3613   ns_delete_display (dpyinfo);
3614   UNBLOCK_INPUT;
3615 }
3616
3617
3618 static struct terminal *
3619 ns_create_terminal (struct ns_display_info *dpyinfo)
3620 /* --------------------------------------------------------------------------
3621       Set up use of NS before we make the first connection.
3622    -------------------------------------------------------------------------- */
3623 {
3624   struct terminal *terminal;
3625
3626   NSTRACE (ns_create_terminal);
3627
3628   terminal = create_terminal ();
3629
3630   terminal->type = output_ns;
3631   terminal->display_info.ns = dpyinfo;
3632   dpyinfo->terminal = terminal;
3633
3634   terminal->rif = &ns_redisplay_interface;
3635
3636   terminal->clear_frame_hook = ns_clear_frame;
3637   terminal->ins_del_lines_hook = 0; /* XXX vestigial? */
3638   terminal->delete_glyphs_hook = 0; /* XXX vestigial? */
3639   terminal->ring_bell_hook = ns_ring_bell;
3640   terminal->reset_terminal_modes_hook = ns_reset_terminal_modes;
3641   terminal->set_terminal_modes_hook = ns_set_terminal_modes;
3642   terminal->update_begin_hook = ns_update_begin;
3643   terminal->update_end_hook = ns_update_end;
3644   terminal->set_terminal_window_hook = NULL; /* XXX vestigial? */
3645   terminal->read_socket_hook = ns_read_socket;
3646   terminal->frame_up_to_date_hook = ns_frame_up_to_date;
3647   terminal->mouse_position_hook = ns_mouse_position;
3648   terminal->frame_rehighlight_hook = ns_frame_rehighlight;
3649   terminal->frame_raise_lower_hook = ns_frame_raise_lower;
3650
3651   terminal->fullscreen_hook = 0; /* see XTfullscreen_hook */
3652
3653   terminal->set_vertical_scroll_bar_hook = ns_set_vertical_scroll_bar;
3654   terminal->condemn_scroll_bars_hook = ns_condemn_scroll_bars;
3655   terminal->redeem_scroll_bar_hook = ns_redeem_scroll_bar;
3656   terminal->judge_scroll_bars_hook = ns_judge_scroll_bars;
3657
3658   terminal->delete_frame_hook = x_destroy_window;
3659   terminal->delete_terminal_hook = ns_delete_terminal;
3660
3661   terminal->scroll_region_ok = 1;
3662   terminal->char_ins_del_ok = 1;
3663   terminal->line_ins_del_ok = 1;
3664   terminal->fast_clear_end_of_line = 1;
3665   terminal->memory_below_frame = 0;
3666
3667   return terminal;
3668 }
3669
3670
3671 struct ns_display_info *
3672 ns_term_init (Lisp_Object display_name)
3673 /* --------------------------------------------------------------------------
3674      Start the Application and get things rolling.
3675    -------------------------------------------------------------------------- */
3676 {
3677   struct terminal *terminal;
3678   struct ns_display_info *dpyinfo;
3679   static int ns_initialized = 0;
3680   Lisp_Object tmp;
3681
3682   NSTRACE (ns_term_init);
3683
3684   /* count object allocs (About, click icon); on OS X use ObjectAlloc tool */
3685   /*GSDebugAllocationActive (YES); */
3686   BLOCK_INPUT;
3687   handling_signal = 0;
3688
3689   if (!ns_initialized)
3690     {
3691       baud_rate = 38400;
3692       Fset_input_interrupt_mode (Qnil);
3693       ns_initialized = 1;
3694     }
3695
3696   ns_pending_files = [[NSMutableArray alloc] init];
3697   ns_pending_service_names = [[NSMutableArray alloc] init];
3698   ns_pending_service_args = [[NSMutableArray alloc] init];
3699
3700   /* Start app and create the main menu, window, view.
3701      Needs to be here because ns_initialize_display_info () uses AppKit classes.
3702      The view will then ask the NSApp to stop and return to Emacs. */
3703   [EmacsApp sharedApplication];
3704   if (NSApp == nil)
3705     return NULL;
3706   [NSApp setDelegate: NSApp];
3707
3708   /* debugging: log all notifications */
3709   /*   [[NSNotificationCenter defaultCenter] addObserver: NSApp
3710                                          selector: @selector (logNotification:)
3711                                              name: nil object: nil]; */
3712
3713   dpyinfo = (struct ns_display_info *)xmalloc (sizeof (struct ns_display_info));
3714   memset (dpyinfo, 0, sizeof (struct ns_display_info));
3715
3716   ns_initialize_display_info (dpyinfo);
3717   terminal = ns_create_terminal (dpyinfo);
3718
3719   terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD));
3720   init_kboard (terminal->kboard);
3721   terminal->kboard->Vwindow_system = Qns;
3722   terminal->kboard->next_kboard = all_kboards;
3723   all_kboards = terminal->kboard;
3724   /* Don't let the initial kboard remain current longer than necessary.
3725      That would cause problems if a file loaded on startup tries to
3726      prompt in the mini-buffer.  */
3727   if (current_kboard == initial_kboard)
3728     current_kboard = terminal->kboard;
3729   terminal->kboard->reference_count++;
3730
3731   dpyinfo->next = x_display_list;
3732   x_display_list = dpyinfo;
3733
3734   /* Put it on ns_display_name_list */
3735   ns_display_name_list = Fcons (Fcons (display_name, Qnil),
3736                                 ns_display_name_list);
3737   dpyinfo->name_list_element = XCAR (ns_display_name_list);
3738
3739   /* Set the name of the terminal. */
3740   terminal->name = (char *) xmalloc (SBYTES (display_name) + 1);
3741   strncpy (terminal->name, SDATA (display_name), SBYTES (display_name));
3742   terminal->name[SBYTES (display_name)] = 0;
3743
3744   UNBLOCK_INPUT;
3745
3746   if (!inhibit_x_resources)
3747     {
3748       ns_default ("GSFontAntiAlias", &ns_antialias_text,
3749                  Qt, Qnil, NO, NO);
3750       tmp = Qnil;
3751       /* this is a standard variable */
3752       ns_default ("AppleAntiAliasingThreshold", &tmp,
3753                  make_float (10.0), make_float (6.0), YES, NO);
3754       ns_antialias_threshold = NILP (tmp) ? 10.0 : XFLOATINT (tmp);
3755     }
3756
3757   ns_selection_color = [[NSUserDefaults standardUserDefaults]
3758                          stringForKey: @"AppleHighlightColor"];
3759   if (ns_selection_color == nil)
3760     ns_selection_color = NS_SELECTION_COLOR_DEFAULT;
3761
3762   {
3763     NSColorList *cl = [NSColorList colorListNamed: @"Emacs"];
3764
3765     if ( cl == nil )
3766       {
3767         Lisp_Object color_file, color_map, color;
3768         int r,g,b;
3769         unsigned long c;
3770         char *name;
3771
3772         color_file = Fexpand_file_name (build_string ("rgb.txt"),
3773                          Fsymbol_value (intern ("data-directory")));
3774         if (NILP (Ffile_readable_p (color_file)))
3775           fatal ("Could not find %s.\n", SDATA (color_file));
3776
3777         color_map = Fx_load_color_file (color_file);
3778         if (NILP (color_map))
3779           fatal ("Could not read %s.\n", SDATA (color_file));
3780
3781         cl = [[NSColorList alloc] initWithName: @"Emacs"];
3782         for ( ; CONSP (color_map); color_map = XCDR (color_map))
3783           {
3784             color = XCAR (color_map);
3785             name = SDATA (XCAR (color));
3786             c = XINT (XCDR (color));
3787             [cl setColor:
3788                   [NSColor colorWithCalibratedRed: RED_FROM_ULONG (c) / 255.0
3789                                             green: GREEN_FROM_ULONG (c) / 255.0
3790                                              blue: BLUE_FROM_ULONG (c) / 255.0
3791                                             alpha: 1.0]
3792                   forKey: [NSString stringWithUTF8String: name]];
3793           }
3794         [cl writeToFile: nil];
3795       }
3796   }
3797
3798   {
3799     char c[128];
3800 #ifdef NS_IMPL_GNUSTEP
3801     strncpy (c, gnustep_base_version, sizeof (c));
3802 #else
3803     /*PSnextrelease (128, c); */
3804     snprintf (c, sizeof (c), "%g", NSAppKitVersionNumber);
3805 #endif
3806     Vwindow_system_version = build_string (c);
3807   }
3808
3809   delete_keyboard_wait_descriptor (0);
3810
3811   ns_app_name = [[NSProcessInfo processInfo] processName];
3812
3813 /* Set up OS X app menu */
3814 #ifdef NS_IMPL_COCOA
3815   {
3816     NSMenu *appMenu;
3817     NSMenuItem *item;
3818     /* set up the application menu */
3819     svcsMenu = [[EmacsMenu alloc] initWithTitle: @"Services"];
3820     [svcsMenu setAutoenablesItems: NO];
3821     appMenu = [[EmacsMenu alloc] initWithTitle: @"Emacs"];
3822     [appMenu setAutoenablesItems: NO];
3823     mainMenu = [[EmacsMenu alloc] initWithTitle: @""];
3824     dockMenu = [[EmacsMenu alloc] initWithTitle: @""];
3825
3826     [appMenu insertItemWithTitle: @"About Emacs"
3827                           action: @selector (orderFrontStandardAboutPanel:)
3828                    keyEquivalent: @""
3829                          atIndex: 0];
3830     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 1];
3831     [appMenu insertItemWithTitle: @"Preferences..."
3832                           action: @selector (showPreferencesWindow:)
3833                    keyEquivalent: @","
3834                          atIndex: 2];
3835     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 3];
3836     item = [appMenu insertItemWithTitle: @"Services"
3837                                  action: @selector (menuDown:)
3838                           keyEquivalent: @""
3839                                 atIndex: 4];
3840     [appMenu setSubmenu: svcsMenu forItem: item];
3841     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 5];
3842     [appMenu insertItemWithTitle: @"Hide Emacs"
3843                           action: @selector (hide:)
3844                    keyEquivalent: @"h"
3845                          atIndex: 6];
3846     item =  [appMenu insertItemWithTitle: @"Hide Others"
3847                           action: @selector (hideOtherApplications:)
3848                    keyEquivalent: @"h"
3849                          atIndex: 7];
3850     [item setKeyEquivalentModifierMask: NSCommandKeyMask | NSAlternateKeyMask];
3851     [appMenu insertItem: [NSMenuItem separatorItem] atIndex: 8];
3852     [appMenu insertItemWithTitle: @"Quit Emacs"
3853                           action: @selector (terminate:)
3854                    keyEquivalent: @"q"
3855                          atIndex: 9];
3856
3857     item = [mainMenu insertItemWithTitle: ns_app_name
3858                                   action: @selector (menuDown:)
3859                            keyEquivalent: @""
3860                                  atIndex: 0];
3861     [mainMenu setSubmenu: appMenu forItem: item];
3862     [dockMenu insertItemWithTitle: @"New Frame"
3863                            action: @selector (newFrame:)
3864                     keyEquivalent: @""
3865                           atIndex: 0];
3866
3867     [NSApp setMainMenu: mainMenu];
3868     [NSApp setAppleMenu: appMenu];
3869     [NSApp setServicesMenu: svcsMenu];
3870     /* Needed at least on Cocoa, to get dock menu to show windows */
3871     [NSApp setWindowsMenu: [[NSMenu alloc] init]];
3872   }
3873 #endif /* MAC OS X menu setup */
3874
3875   [NSApp run];
3876
3877   return dpyinfo;
3878 }
3879
3880
3881 extern Lisp_Object Vauto_save_list_file_name;
3882 void
3883 ns_term_shutdown (int sig)
3884 {
3885   /* code not reached in emacs.c after this is called by shut_down_emacs: */
3886   if (STRINGP (Vauto_save_list_file_name))
3887     unlink (SDATA (Vauto_save_list_file_name));
3888
3889   if (sig == 0 || sig == SIGTERM)
3890     {
3891       [NSApp terminate: NSApp];
3892     }
3893   else // force a stack trace to happen
3894     {
3895       abort();
3896     }
3897 }
3898
3899
3900 /* ==========================================================================
3901
3902     EmacsApp implementation
3903
3904    ========================================================================== */
3905
3906
3907 @implementation EmacsApp
3908
3909 - (void)logNotification: (NSNotification *)notification
3910 {
3911   const char *name = [[notification name] UTF8String];
3912   if (!strstr (name, "Update") && !strstr (name, "NSMenu")
3913       && !strstr (name, "WindowNumber"))
3914     NSLog (@"notification: '%@'", [notification name]);
3915 }
3916
3917
3918 - (void)sendEvent: (NSEvent *)theEvent
3919 /* --------------------------------------------------------------------------
3920      Called when NSApp is running for each event received.  Used to stop
3921      the loop when we choose, since there's no way to just run one iteration.
3922    -------------------------------------------------------------------------- */
3923 {
3924   int type = [theEvent type];
3925   NSWindow *window = [theEvent window];
3926 /*  NSTRACE (sendEvent); */
3927 /*fprintf (stderr, "received event of type %d\t%d\n", type);*/
3928
3929   if (type == NSCursorUpdate && window == nil)
3930     {
3931       fprintf (stderr, "Dropping external cursor update event.\n");
3932       return;
3933     }
3934
3935 #ifdef NS_IMPL_COCOA
3936   /* pass mouse down in resize handle and subsequent drags directly to
3937      EmacsWindow so we can generate continuous redisplays */
3938   if (ns_in_resize)
3939     {
3940       if (type == NSLeftMouseDragged)
3941         {
3942           [window mouseDragged: theEvent];
3943           return;
3944         }
3945       else if (type == NSLeftMouseUp)
3946         {
3947           [window mouseUp: theEvent];
3948           return;
3949         }
3950     }
3951   else if (type == NSLeftMouseDown)
3952     {
3953       NSRect r = ns_resize_handle_rect (window);
3954       if (NSPointInRect ([theEvent locationInWindow], r))
3955         {
3956           ns_in_resize = YES;
3957           [window mouseDown: theEvent];
3958           return;
3959         }
3960     }
3961 #endif
3962
3963   if (type == NSApplicationDefined)
3964     {
3965       /* Events posted by ns_send_appdefined interrupt the run loop here.
3966          But, if a modal window is up, an appdefined can still come through,
3967          (e.g., from a makeKeyWindow event) but stopping self also stops the
3968          modal loop. Just defer it until later. */
3969       if ([NSApp modalWindow] == nil)
3970         {
3971           last_appdefined_event = theEvent;
3972           [self stop: self];
3973         }
3974       else
3975         {
3976           send_appdefined = YES;
3977         }
3978     }
3979
3980   [super sendEvent: theEvent];
3981 }
3982
3983
3984 - (void)showPreferencesWindow: (id)sender
3985 {
3986   struct frame *emacsframe = SELECTED_FRAME ();
3987   NSEvent *theEvent = [NSApp currentEvent];
3988
3989   if (!emacs_event)
3990     return;
3991   emacs_event->kind = NS_NONKEY_EVENT;
3992   emacs_event->code = KEY_NS_SHOW_PREFS;
3993   emacs_event->modifiers = 0;
3994   EV_TRAILER (theEvent);
3995 }
3996
3997
3998 - (void)newFrame: (id)sender
3999 {
4000   struct frame *emacsframe = SELECTED_FRAME ();
4001   NSEvent *theEvent = [NSApp currentEvent];
4002
4003   if (!emacs_event)
4004     return;
4005   emacs_event->kind = NS_NONKEY_EVENT;
4006   emacs_event->code = KEY_NS_NEW_FRAME;
4007   emacs_event->modifiers = 0;
4008   EV_TRAILER (theEvent);
4009 }
4010
4011
4012 /* Open a file (used by below, after going into queue read by ns_read_socket) */
4013 - (BOOL) openFile: (NSString *)fileName
4014 {
4015   struct frame *emacsframe = SELECTED_FRAME ();
4016   NSEvent *theEvent = [NSApp currentEvent];
4017
4018   if (!emacs_event)
4019     return NO;
4020
4021   emacs_event->kind = NS_NONKEY_EVENT;
4022   emacs_event->code = KEY_NS_OPEN_FILE_LINE;
4023   ns_input_file = append2 (ns_input_file, build_string ([fileName UTF8String]));
4024   ns_input_line = Qnil; /* can be start or cons start,end */
4025   emacs_event->modifiers =0;
4026   EV_TRAILER (theEvent);
4027
4028   return YES;
4029 }
4030
4031
4032 /* **************************************************************************
4033
4034       EmacsApp delegate implementation
4035
4036    ************************************************************************** */
4037
4038 - (void)applicationDidFinishLaunching: (NSNotification *)notification
4039 /* --------------------------------------------------------------------------
4040      When application is loaded, terminate event loop in ns_term_init
4041    -------------------------------------------------------------------------- */
4042 {
4043   NSTRACE (applicationDidFinishLaunching);
4044   [NSApp setServicesProvider: NSApp];
4045   ns_send_appdefined (-2);
4046 }
4047
4048
4049 /* Termination sequences:
4050     C-x C-c:
4051     Cmd-Q:
4052     MenuBar | File | Exit:
4053     Select Quit from App menubar:
4054         -terminate
4055         KEY_NS_POWER_OFF, (save-buffers-kill-emacs)
4056         ns_term_shutdown()
4057
4058     Select Quit from Dock menu:
4059     Logout attempt:
4060         -appShouldTerminate
4061           Cancel -> Nothing else
4062           Accept ->
4063
4064           -terminate
4065           KEY_NS_POWER_OFF, (save-buffers-kill-emacs)
4066           ns_term_shutdown()
4067
4068 */
4069
4070 - (void) terminate: (id)sender
4071 {
4072   struct frame *emacsframe = SELECTED_FRAME ();
4073
4074   if (!emacs_event)
4075     return;
4076
4077   emacs_event->kind = NS_NONKEY_EVENT;
4078   emacs_event->code = KEY_NS_POWER_OFF;
4079   emacs_event->arg = Qt; /* mark as non-key event */
4080   EV_TRAILER ((id)nil);
4081 }
4082
4083
4084 - (NSApplicationTerminateReply)applicationShouldTerminate: (id)sender
4085 {
4086   int ret;
4087
4088   if (NILP (ns_confirm_quit)) //   || ns_shutdown_properly  --> TO DO
4089     return NSTerminateNow;
4090
4091     ret = NSRunAlertPanel(ns_app_name,
4092                           [NSString stringWithUTF8String:"Exit requested.  Would you like to Save Buffers and Exit, or Cancel the request?"],
4093                           @"Save Buffers and Exit", @"Cancel", nil);
4094
4095     if (ret == NSAlertDefaultReturn)
4096         return NSTerminateNow;
4097     else if (ret == NSAlertAlternateReturn)
4098         return NSTerminateCancel;
4099     return NSTerminateNow;  /* just in case */
4100 }
4101
4102
4103 /*   Notification from the Workspace to open a file */
4104 - (BOOL)application: sender openFile: (NSString *)file
4105 {
4106   [ns_pending_files addObject: file];
4107   return YES;
4108 }
4109
4110
4111 /*   Open a file as a temporary file */
4112 - (BOOL)application: sender openTempFile: (NSString *)file
4113 {
4114   [ns_pending_files addObject: file];
4115   return YES;
4116 }
4117
4118
4119 /*   Notification from the Workspace to open a file noninteractively (?) */
4120 - (BOOL)application: sender openFileWithoutUI: (NSString *)file
4121 {
4122   [ns_pending_files addObject: file];
4123   return YES;
4124 }
4125
4126
4127 /*   Notification from the Workspace to open multiple files */
4128 - (void)application: sender openFiles: (NSArray *)fileList
4129 {
4130   NSEnumerator *files = [fileList objectEnumerator];
4131   NSString *file;
4132   while ((file = [files nextObject]) != nil)
4133     [ns_pending_files addObject: file];
4134
4135   [self replyToOpenOrPrint: NSApplicationDelegateReplySuccess];
4136
4137 }
4138
4139
4140 /* Handle dock menu requests.  */
4141 - (NSMenu *)applicationDockMenu: (NSApplication *) sender
4142 {
4143   return dockMenu;
4144 }
4145
4146
4147 /* TODO: these may help w/IO switching btwn terminal and NSApp */
4148 - (void)applicationWillBecomeActive: (NSNotification *)notification
4149 {
4150   //ns_app_active=YES;
4151 }
4152 - (void)applicationDidBecomeActive: (NSNotification *)notification
4153 {
4154   //ns_app_active=YES;
4155 }
4156 - (void)applicationDidResignActive: (NSNotification *)notification
4157 {
4158   //ns_app_active=NO;
4159   ns_send_appdefined (-1);
4160 }
4161
4162
4163
4164 /* ==========================================================================
4165
4166     EmacsApp aux handlers for managing event loop
4167
4168    ========================================================================== */
4169
4170
4171 - (void)timeout_handler: (NSTimer *)timedEntry
4172 /* --------------------------------------------------------------------------
4173      The timeout specified to ns_select has passed.
4174    -------------------------------------------------------------------------- */
4175 {
4176   /*NSTRACE (timeout_handler); */
4177   ns_send_appdefined (-2);
4178 }
4179
4180 - (void)fd_handler: (NSTimer *) fdEntry
4181 /* --------------------------------------------------------------------------
4182      Check data waiting on file descriptors and terminate if so
4183    -------------------------------------------------------------------------- */
4184 {
4185   int result;
4186   /* NSTRACE (fd_handler); */
4187
4188   if (select_nfds == 0)
4189     return;
4190
4191   memcpy (&t_readfds, &select_readfds, sizeof (fd_set));
4192
4193   select_timeout.tv_sec = select_timeout.tv_usec = 0;
4194   result = select (select_nfds, &t_readfds, (SELECT_TYPE *)0, (SELECT_TYPE *)0,
4195                   &select_timeout);
4196   if (result)
4197     {
4198       memcpy (&select_readfds, &t_readfds, sizeof (fd_set));
4199       ns_send_appdefined (result);
4200     }
4201 }
4202
4203
4204
4205 /* ==========================================================================
4206
4207     Service provision
4208
4209    ========================================================================== */
4210
4211 /* called from system: queue for next pass through event loop */
4212 - (void)requestService: (NSPasteboard *)pboard
4213               userData: (NSString *)userData
4214                  error: (NSString **)error
4215 {
4216   [ns_pending_service_names addObject: userData];
4217   [ns_pending_service_args addObject: [NSString stringWithUTF8String:
4218       SDATA (ns_string_from_pasteboard (pboard))]];
4219 }
4220
4221
4222 /* called from ns_read_socket to clear queue */
4223 - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
4224 {
4225   struct frame *emacsframe = SELECTED_FRAME ();
4226   NSEvent *theEvent = [NSApp currentEvent];
4227
4228   if (!emacs_event)
4229     return NO;
4230
4231   emacs_event->kind = NS_NONKEY_EVENT;
4232   emacs_event->code = KEY_NS_SPI_SERVICE_CALL;
4233   ns_input_spi_name = build_string ([name UTF8String]);
4234   ns_input_spi_arg = build_string ([arg UTF8String]);
4235   emacs_event->modifiers = EV_MODIFIERS (theEvent);
4236   EV_TRAILER (theEvent);
4237
4238   return YES;
4239 }
4240
4241
4242 @end  /* EmacsApp */
4243
4244
4245
4246 /* ==========================================================================
4247
4248     EmacsView implementation
4249
4250    ========================================================================== */
4251
4252
4253 @implementation EmacsView
4254
4255 /* needed to inform when window closed from LISP */
4256 - (void) setWindowClosing: (BOOL)closing
4257 {
4258   windowClosing = closing;
4259 }
4260
4261
4262 - (void)dealloc
4263 {
4264   NSTRACE (EmacsView_dealloc);
4265   [toolbar release];
4266   [super dealloc];
4267 }
4268
4269
4270 /* called on font panel selection */
4271 - (void)changeFont: (id)sender
4272 {
4273   NSEvent *e =[[self window] currentEvent];
4274   struct face *face =FRAME_DEFAULT_FACE (emacsframe);
4275   id newFont;
4276   float size;
4277
4278   NSTRACE (changeFont);
4279   if (!emacs_event)
4280     return;
4281
4282   if (newFont = [sender convertFont:
4283                            ((struct nsfont_info *)face->font)->nsfont])
4284     {
4285       SET_FRAME_GARBAGED (emacsframe); /* now needed as of 2008/10 */
4286
4287       emacs_event->kind = NS_NONKEY_EVENT;
4288       emacs_event->modifiers = 0;
4289       emacs_event->code = KEY_NS_CHANGE_FONT;
4290
4291       size = [newFont pointSize];
4292       ns_input_fontsize = make_number (lrint (size));
4293       ns_input_font = build_string ([[newFont familyName] UTF8String]);
4294       EV_TRAILER (e);
4295     }
4296 }
4297
4298
4299 - (BOOL)acceptsFirstResponder
4300 {
4301   NSTRACE (acceptsFirstResponder);
4302   return YES;
4303 }
4304
4305
4306 - (void)resetCursorRects
4307 {
4308   NSRect visible = [self visibleRect];
4309   NSCursor *currentCursor = FRAME_POINTER_TYPE (emacsframe);
4310   NSTRACE (resetCursorRects);
4311
4312   if (currentCursor == nil)
4313     currentCursor = [NSCursor arrowCursor];
4314
4315   if (!NSIsEmptyRect (visible))
4316     [self addCursorRect: visible cursor: currentCursor];
4317   [currentCursor setOnMouseEntered: YES];
4318 }
4319
4320
4321
4322 /*****************************************************************************/
4323 /* Keyboard handling. */
4324 #define NS_KEYLOG 0
4325
4326 - (void)keyDown: (NSEvent *)theEvent
4327 {
4328   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (emacsframe);
4329   int code;
4330   unsigned fnKeysym = 0;
4331   int flags;
4332   static NSMutableArray *nsEvArray;
4333   static BOOL firstTime = YES;
4334
4335   NSTRACE (keyDown);
4336
4337   /* Rhapsody and OS X give up and down events for the arrow keys */
4338   if (ns_fake_keydown == YES)
4339     ns_fake_keydown = NO;
4340   else if ([theEvent type] != NSKeyDown)
4341     return;
4342
4343   if (!emacs_event)
4344     return;
4345
4346  if (![[self window] isKeyWindow]
4347      && [[theEvent window] isKindOfClass: [EmacsWindow class]]
4348      /* we must avoid an infinite loop here. */
4349      && (EmacsView *)[[theEvent window] delegate] != self)
4350    {
4351      /* XXX: There is an occasional condition in which, when Emacs display
4352          updates a different frame from the current one, and temporarily
4353          selects it, then processes some interrupt-driven input
4354          (dispnew.c:3878), OS will send the event to the correct NSWindow, but
4355          for some reason that window has its first responder set to the NSView
4356          most recently updated (I guess), which is not the correct one. */
4357      [(EmacsView *)[[theEvent window] delegate] keyDown: theEvent];
4358      return;
4359    }
4360
4361   if (nsEvArray == nil)
4362     nsEvArray = [[NSMutableArray alloc] initWithCapacity: 1];
4363
4364   [NSCursor setHiddenUntilMouseMoves: YES];
4365
4366   if (dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
4367     {
4368       clear_mouse_face (dpyinfo);
4369       dpyinfo->mouse_face_hidden = 1;
4370     }
4371
4372   if (!processingCompose)
4373     {
4374       code = ([[theEvent charactersIgnoringModifiers] length] == 0) ?
4375         0 : [[theEvent charactersIgnoringModifiers] characterAtIndex: 0];
4376       /* (Carbon way: [theEvent keyCode]) */
4377
4378       /* is it a "function key"? */
4379       fnKeysym = ns_convert_key (code);
4380       if (fnKeysym)
4381         {
4382           /* COUNTERHACK: map 'Delete' on upper-right main KB to 'Backspace',
4383              because Emacs treats Delete and KP-Delete same (in simple.el). */
4384           if (fnKeysym == 0xFFFF && [theEvent keyCode] == 0x33)
4385             code = 0xFF08; /* backspace */
4386           else
4387             code = fnKeysym;
4388         }
4389
4390       /* are there modifiers? */
4391       emacs_event->modifiers = 0;
4392       flags = [theEvent modifierFlags];
4393
4394       if (flags & NSHelpKeyMask)
4395           emacs_event->modifiers |= hyper_modifier;
4396
4397       if (flags & NSShiftKeyMask)
4398         emacs_event->modifiers |= shift_modifier;
4399
4400       if (flags & NSCommandKeyMask)
4401         {
4402           emacs_event->modifiers |= parse_solitary_modifier (ns_command_modifier);
4403           /* if super (default), take input manager's word so things like
4404              dvorak / qwerty layout work */
4405           if (EQ (ns_command_modifier, Qsuper)
4406               && !fnKeysym
4407               && [[theEvent characters] length] != 0)
4408             {
4409               /* XXX: the code we get will be unshifted, so if we have
4410                  a shift modifier, must convert ourselves */
4411               if (!(flags & NSShiftKeyMask))
4412                 code = [[theEvent characters] characterAtIndex: 0];
4413 #if 0
4414               /* this is ugly and also requires linking w/Carbon framework
4415                  (for LMGetKbdType) so for now leave this rare (?) case
4416                  undealt with.. in future look into CGEvent methods */
4417               else
4418                 {
4419                   long smv = GetScriptManagerVariable (smKeyScript);
4420                   Handle uchrHandle = GetResource
4421                     ('uchr', GetScriptVariable (smv, smScriptKeys));
4422                   UInt32 dummy = 0;
4423                   UCKeyTranslate ((UCKeyboardLayout*)*uchrHandle,
4424                                  [[theEvent characters] characterAtIndex: 0],
4425                                  kUCKeyActionDisplay,
4426                                  (flags & ~NSCommandKeyMask) >> 8,
4427                                  LMGetKbdType (), kUCKeyTranslateNoDeadKeysMask,
4428                                  &dummy, 1, &dummy, &code);
4429                   code &= 0xFF;
4430                 }
4431 #endif
4432             }
4433         }
4434
4435       if (flags & NSControlKeyMask)
4436           emacs_event->modifiers |=
4437             parse_solitary_modifier (ns_control_modifier);
4438
4439       if (flags & NS_FUNCTION_KEY_MASK && !fnKeysym)
4440           emacs_event->modifiers |=
4441             parse_solitary_modifier (ns_function_modifier);
4442
4443       if (flags & NSAlternateKeyMask) /* default = meta */
4444         {
4445           if ((NILP (ns_alternate_modifier) || EQ (ns_alternate_modifier, Qnone))
4446               && !fnKeysym)
4447             {   /* accept pre-interp alt comb */
4448               if ([[theEvent characters] length] > 0)
4449                 code = [[theEvent characters] characterAtIndex: 0];
4450               /*HACK: clear lone shift modifier to stop next if from firing */
4451               if (emacs_event->modifiers == shift_modifier)
4452                 emacs_event->modifiers = 0;
4453             }
4454           else
4455               emacs_event->modifiers |=
4456                 parse_solitary_modifier (ns_alternate_modifier);
4457         }
4458
4459   if (NS_KEYLOG)
4460     fprintf (stderr, "keyDown: code =%x\tfnKey =%x\tflags = %x\tmods = %x\n",
4461              code, fnKeysym, flags, emacs_event->modifiers);
4462
4463       /* if it was a function key or had modifiers, pass it directly to emacs */
4464       if (fnKeysym || (emacs_event->modifiers
4465                        && [[theEvent charactersIgnoringModifiers] length] > 0))
4466 /*[[theEvent characters] length] */
4467         {
4468           emacs_event->kind = NON_ASCII_KEYSTROKE_EVENT;
4469           if (code < 0x20)
4470             code |= (1<<28)|(3<<16);
4471           else if (code == 0x7f)
4472             code |= (1<<28)|(3<<16);
4473           else if (!fnKeysym)
4474             emacs_event->kind = code > 0xFF
4475               ? MULTIBYTE_CHAR_KEYSTROKE_EVENT : ASCII_KEYSTROKE_EVENT;
4476
4477           emacs_event->code = code;
4478           EV_TRAILER (theEvent);
4479           return;
4480         }
4481     }
4482
4483   /* if we get here we should send the key for input manager processing */
4484   if (firstTime && [[NSInputManager currentInputManager]
4485                      wantsToDelayTextChangeNotifications] == NO)
4486     fprintf (stderr,
4487           "Emacs: WARNING: TextInput mgr wants marked text to be permanent!\n");
4488   firstTime = NO;
4489
4490   if (NS_KEYLOG && !processingCompose)
4491     fprintf (stderr, "keyDown: Begin compose sequence.\n");
4492
4493   processingCompose = YES;
4494   [nsEvArray addObject: theEvent];
4495   [self interpretKeyEvents: nsEvArray];
4496   [nsEvArray removeObject: theEvent];
4497 }
4498
4499
4500 #ifdef NS_IMPL_COCOA
4501 /* Needed to pick up Ctrl-tab and possibly other events that OS X has
4502    decided not to send key-down for.
4503    See http://osdir.com/ml/editors.vim.mac/2007-10/msg00141.html
4504    This only applies on Tiger and earlier.
4505    If it matches one of these, send it on to keyDown. */
4506 -(void)keyUp: (NSEvent *)theEvent
4507 {
4508   int flags = [theEvent modifierFlags];
4509   int code = [theEvent keyCode];
4510   if (floor (NSAppKitVersionNumber) <= 824 /*NSAppKitVersionNumber10_4*/ &&
4511       code == 0x30 && (flags & NSControlKeyMask) && !(flags & NSCommandKeyMask))
4512     {
4513       if (NS_KEYLOG)
4514         fprintf (stderr, "keyUp: passed test");
4515       ns_fake_keydown = YES;
4516       [self keyDown: theEvent];
4517     }
4518 }
4519 #endif
4520
4521
4522 /* <NSTextInput> implementation (called through super interpretKeyEvents:]). */
4523
4524
4525 /* <NSTextInput>: called when done composing;
4526    NOTE: also called when we delete over working text, followed immed.
4527          by doCommandBySelector: deleteBackward: */
4528 - (void)insertText: (id)aString
4529 {
4530   int code;
4531   int len = [(NSString *)aString length];
4532   int i;
4533
4534   if (NS_KEYLOG)
4535     NSLog (@"insertText '%@'\tlen = %d", aString, len);
4536   processingCompose = NO;
4537
4538   if (!emacs_event)
4539     return;
4540
4541   /* first, clear any working text */
4542   if (workingText != nil)
4543     [self deleteWorkingText];
4544
4545   /* now insert the string as keystrokes */
4546   for (i =0; i<len; i++)
4547     {
4548       code = [aString characterAtIndex: i];
4549       /* TODO: still need this? */
4550       if (code == 0x2DC)
4551         code = '~'; /* 0x7E */
4552       emacs_event->modifiers = 0;
4553       emacs_event->kind
4554         = code > 0xFF ? MULTIBYTE_CHAR_KEYSTROKE_EVENT : ASCII_KEYSTROKE_EVENT;
4555       emacs_event->code = code;
4556       EV_TRAILER ((id)nil);
4557     }
4558 }
4559
4560
4561 /* <NSTextInput>: inserts display of composing characters */
4562 - (void)setMarkedText: (id)aString selectedRange: (NSRange)selRange
4563 {
4564   NSString *str = [aString respondsToSelector: @selector (string)] ?
4565     [aString string] : aString;
4566   if (NS_KEYLOG)
4567     NSLog (@"setMarkedText '%@' len =%d range %d from %d", str, [str length],
4568            selRange.length, selRange.location);
4569
4570   if (workingText != nil)
4571     [self deleteWorkingText];
4572   if ([str length] == 0)
4573     return;
4574
4575   if (!emacs_event)
4576     return;
4577
4578   processingCompose = YES;
4579   workingText = [str copy];
4580   ns_working_text = build_string ([workingText UTF8String]);
4581
4582   emacs_event->kind = NS_TEXT_EVENT;
4583   emacs_event->code = KEY_NS_PUT_WORKING_TEXT;
4584   EV_TRAILER ((id)nil);
4585 }
4586
4587
4588 /* delete display of composing characters [not in <NSTextInput>] */
4589 - (void)deleteWorkingText
4590 {
4591   if (workingText == nil)
4592     return;
4593   if (NS_KEYLOG)
4594     NSLog(@"deleteWorkingText len =%d\n", [workingText length]);
4595   [workingText release];
4596   workingText = nil;
4597   processingCompose = NO;
4598
4599   if (!emacs_event)
4600     return;
4601
4602   emacs_event->kind = NS_TEXT_EVENT;
4603   emacs_event->code = KEY_NS_UNPUT_WORKING_TEXT;
4604   EV_TRAILER ((id)nil);
4605 }
4606
4607
4608 - (BOOL)hasMarkedText
4609 {
4610   return workingText != nil;
4611 }
4612
4613
4614 - (NSRange)markedRange
4615 {
4616   NSRange rng = workingText != nil
4617     ? NSMakeRange (0, [workingText length]) : NSMakeRange (NSNotFound, 0);
4618   if (NS_KEYLOG)
4619     NSLog (@"markedRange request");
4620   return rng;
4621 }
4622
4623
4624 - (void)unmarkText
4625 {
4626   if (NS_KEYLOG)
4627     NSLog (@"unmark (accept) text");
4628   [self deleteWorkingText];
4629   processingCompose = NO;
4630 }
4631
4632
4633 /* used to position char selection windows, etc. */
4634 - (NSRect)firstRectForCharacterRange: (NSRange)theRange
4635 {
4636   NSRect rect;
4637   NSPoint pt;
4638   struct window *win = XWINDOW (FRAME_SELECTED_WINDOW (emacsframe));
4639   if (NS_KEYLOG)
4640     NSLog (@"firstRectForCharRange request");
4641
4642   rect.size.width = theRange.length * FRAME_COLUMN_WIDTH (emacsframe);
4643   rect.size.height = FRAME_LINE_HEIGHT (emacsframe);
4644   pt.x = WINDOW_TEXT_TO_FRAME_PIXEL_X (win, win->phys_cursor.x);
4645   pt.y = WINDOW_TO_FRAME_PIXEL_Y (win, win->phys_cursor.y
4646                                        +FRAME_LINE_HEIGHT (emacsframe));
4647
4648   pt = [self convertPoint: pt toView: nil];
4649   pt = [[self window] convertBaseToScreen: pt];
4650   rect.origin = pt;
4651   return rect;
4652 }
4653
4654
4655 - (long)conversationIdentifier
4656 {
4657   return (long)self;
4658 }
4659
4660
4661 - (void)doCommandBySelector: (SEL)aSelector
4662 {
4663   if (NS_KEYLOG)
4664     NSLog (@"doCommandBySelector: %@", NSStringFromSelector (aSelector));
4665
4666   if (aSelector == @selector (deleteBackward:))
4667     {
4668       /* happens when user backspaces over an ongoing composition:
4669          throw a 'delete' into the event queue */
4670       if (!emacs_event)
4671         return;
4672       emacs_event->kind = NON_ASCII_KEYSTROKE_EVENT;
4673       emacs_event->code = 0xFF08;
4674       EV_TRAILER ((id)nil);
4675     }
4676 }
4677
4678 - (NSArray *)validAttributesForMarkedText
4679 {
4680   static NSArray *arr = nil;
4681   if (arr == nil) arr = [NSArray new];
4682  /* [[NSArray arrayWithObject: NSUnderlineStyleAttributeName] retain]; */
4683   return arr;
4684 }
4685
4686 - (NSRange)selectedRange
4687 {
4688   if (NS_KEYLOG)
4689     NSLog (@"selectedRange request");
4690   return NSMakeRange (NSNotFound, 0);
4691 }
4692
4693 - (NSUInteger)characterIndexForPoint: (NSPoint)thePoint
4694 {
4695   if (NS_KEYLOG)
4696     NSLog (@"characterIndexForPoint request");
4697   return 0;
4698 }
4699
4700 - (NSAttributedString *)attributedSubstringFromRange: (NSRange)theRange
4701 {
4702   static NSAttributedString *str = nil;
4703   if (str == nil) str = [NSAttributedString new];
4704   if (NS_KEYLOG)
4705     NSLog (@"attributedSubstringFromRange request");
4706   return str;
4707 }
4708
4709 /* End <NSTextInput> impl. */
4710 /*****************************************************************************/
4711
4712
4713 /* This is what happens when the user presses a mouse button.  */
4714 - (void)mouseDown: (NSEvent *)theEvent
4715 {
4716   NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil];
4717   Lisp_Object window;
4718
4719   NSTRACE (mouseDown);
4720
4721   [self deleteWorkingText];
4722
4723   if (!emacs_event)
4724     return;
4725
4726   last_mouse_frame = emacsframe;
4727   /* appears to be needed to prevent spurious movement events generated on
4728      button clicks */
4729   last_mouse_frame->mouse_moved = 0;
4730
4731   if ([theEvent type] == NSScrollWheel)
4732     {
4733       float delta = [theEvent deltaY];
4734       /* Mac notebooks send wheel events w/delta =0 when trackpad scrolling */
4735       if (delta == 0)
4736         return;
4737       emacs_event->kind = WHEEL_EVENT;
4738       emacs_event->code = 0;
4739       emacs_event->modifiers = EV_MODIFIERS (theEvent) |
4740         ((delta > 0) ? up_modifier : down_modifier);
4741     }
4742   else
4743     {
4744       emacs_event->kind = MOUSE_CLICK_EVENT;
4745       emacs_event->code = EV_BUTTON (theEvent);
4746       emacs_event->modifiers = EV_MODIFIERS (theEvent)
4747                              | EV_UDMODIFIERS (theEvent);
4748     }
4749   XSETINT (emacs_event->x, lrint (p.x));
4750   XSETINT (emacs_event->y, lrint (p.y));
4751   EV_TRAILER (theEvent);
4752 }
4753
4754
4755 - (void)rightMouseDown: (NSEvent *)theEvent
4756 {
4757   NSTRACE (rightMouseDown);
4758   [self mouseDown: theEvent];
4759 }
4760
4761
4762 - (void)otherMouseDown: (NSEvent *)theEvent
4763 {
4764   NSTRACE (otherMouseDown);
4765   [self mouseDown: theEvent];
4766 }
4767
4768
4769 - (void)mouseUp: (NSEvent *)theEvent
4770 {
4771   NSTRACE (mouseUp);
4772   [self mouseDown: theEvent];
4773 }
4774
4775
4776 - (void)rightMouseUp: (NSEvent *)theEvent
4777 {
4778   NSTRACE (rightMouseUp);
4779   [self mouseDown: theEvent];
4780 }
4781
4782
4783 - (void)otherMouseUp: (NSEvent *)theEvent
4784 {
4785   NSTRACE (otherMouseUp);
4786   [self mouseDown: theEvent];
4787 }
4788
4789
4790 - (void) scrollWheel: (NSEvent *)theEvent
4791 {
4792   NSTRACE (scrollWheel);
4793   [self mouseDown: theEvent];
4794 }
4795
4796
4797 /* Tell emacs the mouse has moved. */
4798 - (void)mouseMoved: (NSEvent *)e
4799 {
4800   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (emacsframe);
4801   Lisp_Object frame;
4802
4803 //  NSTRACE (mouseMoved);
4804
4805   last_mouse_movement_time = EV_TIMESTAMP (e);
4806   last_mouse_motion_position
4807     = [self convertPoint: [e locationInWindow] fromView: nil];
4808
4809   /* update any mouse face */
4810   if (dpyinfo->mouse_face_hidden)
4811     {
4812       dpyinfo->mouse_face_hidden = 0;
4813       clear_mouse_face (dpyinfo);
4814     }
4815
4816   /* tooltip handling */
4817   previous_help_echo_string = help_echo_string;
4818   help_echo_string = Qnil;
4819
4820   if (!note_mouse_movement (emacsframe, last_mouse_motion_position.x,
4821                             last_mouse_motion_position.y))
4822     help_echo_string = previous_help_echo_string;
4823
4824   XSETFRAME (frame, emacsframe);
4825   if (!NILP (help_echo_string) || !NILP (previous_help_echo_string))
4826     {
4827       /* NOTE: help_echo_{window,pos,object} are set in xdisp.c
4828          (note_mouse_highlight), which is called through the
4829          note_mouse_movement () call above */
4830       gen_help_event (help_echo_string, frame, help_echo_window,
4831                       help_echo_object, help_echo_pos);
4832     }
4833   else
4834     {
4835       help_echo_string = Qnil;
4836       gen_help_event (Qnil, frame, Qnil, Qnil, 0);
4837     }
4838
4839   if (emacsframe->mouse_moved && send_appdefined)
4840     ns_send_appdefined (-1);
4841 }
4842
4843
4844 - (void)mouseDragged: (NSEvent *)e
4845 {
4846   NSTRACE (mouseDragged);
4847   [self mouseMoved: e];
4848 }
4849
4850
4851 - (void)rightMouseDragged: (NSEvent *)e
4852 {
4853   NSTRACE (rightMouseDragged);
4854   [self mouseMoved: e];
4855 }
4856
4857
4858 - (void)otherMouseDragged: (NSEvent *)e
4859 {
4860   NSTRACE (otherMouseDragged);
4861   [self mouseMoved: e];
4862 }
4863
4864
4865 - (BOOL)windowShouldClose: (id)sender
4866 {
4867   NSEvent *e =[[self window] currentEvent];
4868
4869   NSTRACE (windowShouldClose);
4870   windowClosing = YES;
4871   if (!emacs_event)
4872     return NO;
4873   emacs_event->kind = DELETE_WINDOW_EVENT;
4874   emacs_event->modifiers = 0;
4875   emacs_event->code = 0;
4876   EV_TRAILER (e);
4877   /* Don't close this window, let this be done from lisp code.  */
4878   return NO;
4879 }
4880
4881
4882 - (NSSize)windowWillResize: (NSWindow *)sender toSize: (NSSize)frameSize
4883 /* normalize frame to gridded text size */
4884 {
4885   NSTRACE (windowWillResize);
4886 /*fprintf (stderr,"Window will resize: %.0f x %.0f\n",frameSize.width,frameSize.height); */
4887
4888   cols = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (emacsframe,
4889 #ifdef NS_IMPL_GNUSTEP
4890                                         frameSize.width + 3);
4891 #else
4892                                         frameSize.width);
4893 #endif
4894   if (cols < MINWIDTH)
4895     cols = MINWIDTH;
4896   frameSize.width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (emacsframe, cols);
4897
4898   rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (emacsframe, frameSize.height
4899 #ifdef NS_IMPL_GNUSTEP
4900       - FRAME_NS_TITLEBAR_HEIGHT (emacsframe) + 3
4901         - FRAME_TOOLBAR_HEIGHT (emacsframe));
4902 #else
4903       - FRAME_NS_TITLEBAR_HEIGHT (emacsframe)
4904         - FRAME_TOOLBAR_HEIGHT (emacsframe));
4905 #endif
4906   if (rows < MINHEIGHT)
4907     rows = MINHEIGHT;
4908   frameSize.height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (emacsframe, rows)
4909                        + FRAME_NS_TITLEBAR_HEIGHT (emacsframe)
4910                        + FRAME_TOOLBAR_HEIGHT (emacsframe);
4911 #ifdef NS_IMPL_COCOA
4912   {
4913     /* this sets window title to have size in it; the wm does this under GS */
4914     NSRect r = [[self window] frame];
4915     if (r.size.height == frameSize.height && r.size.width == frameSize.width)
4916       {
4917         if (old_title != 0)
4918           {
4919             xfree (old_title);
4920             old_title = 0;
4921           }
4922       }
4923     else
4924       {
4925         char *size_title;
4926         NSWindow *window = [self window];
4927         if (old_title == 0)
4928           {
4929             const char *t = [[[self window] title] UTF8String];
4930             char *pos = strstr (t, "  —  ");
4931             if (pos)
4932               *pos = '\0';
4933             old_title = (char *) xmalloc (strlen (t) + 1);
4934             strcpy (old_title, t);
4935           }
4936         size_title = xmalloc (strlen (old_title) + 40);
4937         sprintf (size_title, "%s  —  (%d x %d)", old_title, cols, rows);
4938         [window setTitle: [NSString stringWithUTF8String: size_title]];
4939         [window display];
4940         xfree (size_title);
4941       }
4942   }
4943 #endif /* NS_IMPL_COCOA */
4944 /*fprintf (stderr,"    ...size became %.0f x %.0f  (%d x %d)\n",frameSize.width,frameSize.height,cols,rows); */
4945
4946   return frameSize;
4947 }
4948
4949
4950 - (void)windowDidResize: (NSNotification *)notification
4951 {
4952   NSWindow *theWindow = [notification object];
4953
4954 #ifdef NS_IMPL_GNUSTEP
4955    /* in GNUstep, at least currently, it's possible to get a didResize
4956       without getting a willResize.. therefore we need to act as if we got
4957       the willResize now */
4958   NSSize sz = [theWindow frame].size;
4959   sz = [self windowWillResize: theWindow toSize: sz];
4960 #endif /* NS_IMPL_GNUSTEP */
4961
4962   NSTRACE (windowDidResize);
4963 /*fprintf (stderr,"windowDidResize: %.0f\n",[theWindow frame].size.height); */
4964
4965 #ifdef NS_IMPL_COCOA
4966   if (old_title != 0)
4967     {
4968       xfree (old_title);
4969       old_title = 0;
4970     }
4971 #endif /* NS_IMPL_COCOA */
4972
4973   /* Avoid loop under GNUstep due to call at beginning of this function.
4974      (x_set_window_size causes a resize which causes
4975      a "windowDidResize" which calls x_set_window_size).  */
4976 #ifndef NS_IMPL_GNUSTEP
4977   if (cols > 0 && rows > 0)
4978      x_set_window_size (emacsframe, 0, cols, rows);
4979 #endif
4980
4981   ns_send_appdefined (-1);
4982 }
4983
4984
4985 - (void)windowDidBecomeKey: (NSNotification *)notification
4986 /* cf. x_detect_focus_change(), x_focus_changed(), x_new_focus_frame() */
4987 {
4988   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (emacsframe);
4989   struct frame *old_focus = dpyinfo->x_focus_frame;
4990
4991   NSTRACE (windowDidBecomeKey);
4992
4993   if (emacsframe != old_focus)
4994     dpyinfo->x_focus_frame = emacsframe;
4995
4996   ns_frame_rehighlight (emacsframe);
4997
4998   if (emacs_event)
4999     {
5000       emacs_event->kind = FOCUS_IN_EVENT;
5001       EV_TRAILER ((id)nil);
5002     }
5003 }
5004
5005
5006 - (void)windowDidResignKey: (NSNotification *)notification
5007 /* cf. x_detect_focus_change(), x_focus_changed(), x_new_focus_frame() */
5008 {
5009   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (emacsframe);
5010   NSTRACE (windowDidResignKey);
5011
5012   if (dpyinfo->x_focus_frame == emacsframe)
5013     dpyinfo->x_focus_frame = 0;
5014
5015   ns_frame_rehighlight (emacsframe);
5016
5017   /* FIXME: for some reason needed on second and subsequent clicks away
5018             from sole-frame Emacs to get hollow box to show */
5019   if (!windowClosing && [[self window] isVisible] == YES)
5020     {
5021       x_update_cursor (emacsframe, 1);
5022       x_set_frame_alpha (emacsframe);
5023     }
5024
5025   if (emacs_event)
5026     {
5027       [self deleteWorkingText];
5028       emacs_event->kind = FOCUS_IN_EVENT;
5029       EV_TRAILER ((id)nil);
5030     }
5031 }
5032
5033
5034 - (void)windowWillMiniaturize: sender
5035 {
5036   NSTRACE (windowWillMiniaturize);
5037 }
5038
5039
5040 - (BOOL)isFlipped
5041 {
5042   return YES;
5043 }
5044
5045
5046 - (BOOL)isOpaque
5047 {
5048   return NO;
5049 }
5050
5051
5052 - initFrameFromEmacs: (struct frame *)f
5053 {
5054   NSRect r, wr;
5055   Lisp_Object tem;
5056   NSWindow *win;
5057   NSButton *toggleButton;
5058   int vbextra = NS_SCROLL_BAR_WIDTH (f);
5059   NSSize sz;
5060   NSColor *col;
5061   NSString *name;
5062
5063   NSTRACE (initFrameFromEmacs);
5064
5065   windowClosing = NO;
5066   processingCompose = NO;
5067   scrollbarsNeedingUpdate = 0;
5068
5069 /*fprintf (stderr,"init with %d, %d\n",f->text_cols, f->text_lines); */
5070
5071   r = NSMakeRect (0, 0, FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, f->text_cols),
5072                  FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, f->text_lines));
5073   [self initWithFrame: r];
5074   [self setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable];
5075
5076   FRAME_NS_VIEW (f) = self;
5077   emacsframe = f;
5078   old_title = 0;
5079
5080   win = [[EmacsWindow alloc]
5081             initWithContentRect: r
5082                       styleMask: (NSResizableWindowMask |
5083                                   NSMiniaturizableWindowMask |
5084                                   NSClosableWindowMask)
5085                         backing: NSBackingStoreBuffered
5086                           defer: YES];
5087
5088   wr = [win frame];
5089   f->border_width = wr.size.width - r.size.width;
5090   FRAME_NS_TITLEBAR_HEIGHT (f) = wr.size.height - r.size.height;
5091
5092   [win setAcceptsMouseMovedEvents: YES];
5093   [win setDelegate: self];
5094   [win useOptimizedDrawing: YES];
5095
5096   sz.width = FRAME_COLUMN_WIDTH (f);
5097   sz.height = FRAME_LINE_HEIGHT (f);
5098   [win setResizeIncrements: sz];
5099
5100   [[win contentView] addSubview: self];
5101
5102   if (ns_drag_types)
5103     [self registerForDraggedTypes: ns_drag_types];
5104
5105   tem = f->name;
5106   name = [NSString stringWithUTF8String:
5107                    NILP (tem) ? (unsigned char *)"Emacs" : SDATA (tem)];
5108   [win setTitle: name];
5109
5110   /* toolbar support */
5111   toolbar = [[EmacsToolbar alloc] initForView: self withIdentifier:
5112                          [NSString stringWithFormat: @"Emacs Frame %d",
5113                                    ns_window_num]];
5114   [win setToolbar: toolbar];
5115   [toolbar setVisible: NO];
5116 #ifdef NS_IMPL_COCOA
5117   toggleButton = [win standardWindowButton: NSWindowToolbarButton];
5118   [toggleButton setTarget: self];
5119   [toggleButton setAction: @selector (toggleToolbar: )];
5120 #endif
5121   FRAME_TOOLBAR_HEIGHT (f) = 0;
5122
5123   tem = f->icon_name;
5124   if (!NILP (tem))
5125     [win setMiniwindowTitle:
5126            [NSString stringWithUTF8String: SDATA (tem)]];
5127
5128   {
5129     NSScreen *screen = [win screen];
5130
5131     if (screen != 0)
5132       [win setFrameTopLeftPoint: NSMakePoint
5133            (IN_BOUND (-SCREENMAX, f->left_pos, SCREENMAX),
5134             IN_BOUND (-SCREENMAX,
5135                      [screen frame].size.height - NS_TOP_POS (f), SCREENMAX))];
5136   }
5137
5138   [win makeFirstResponder: self];
5139
5140   col = ns_lookup_indexed_color (NS_FACE_BACKGROUND
5141                                   (FRAME_DEFAULT_FACE (emacsframe)), emacsframe);
5142   [win setBackgroundColor: col];
5143   if ([col alphaComponent] != 1.0)
5144     [win setOpaque: NO];
5145
5146   [self allocateGState];
5147
5148   ns_window_num++;
5149   return self;
5150 }
5151
5152
5153 - (void)windowDidMove: sender
5154 {
5155   NSWindow *win = [self window];
5156   NSRect r = [win frame];
5157   NSScreen *screen = [win screen];
5158
5159   NSTRACE (windowDidMove);
5160
5161   if (!emacsframe->output_data.ns)
5162     return;
5163   if (screen != nil)
5164     {
5165       emacsframe->left_pos = r.origin.x;
5166       emacsframe->top_pos =
5167         [screen frame].size.height - (r.origin.y + r.size.height);
5168     }
5169 }
5170
5171
5172 /* Called AFTER method below, but before our windowWillResize call there leads
5173    to windowDidResize -> x_set_window_size.  Update emacs' notion of frame
5174    location so set_window_size moves the frame. */
5175 - (BOOL)windowShouldZoom: (NSWindow *)sender toFrame: (NSRect)newFrame
5176 {
5177   NSTRACE (windowShouldZoom);
5178   emacsframe->left_pos = (int)newFrame.origin.x;
5179   emacsframe->top_pos = [[sender screen] frame].size.height
5180                             - (newFrame.origin.y+newFrame.size.height);
5181   return YES;
5182 }
5183
5184
5185 /* Override to do something slightly nonstandard, but nice.  First click on
5186    zoom button will zoom vertically.  Second will zoom completely.  Third
5187    returns to original. */
5188 - (NSRect)windowWillUseStandardFrame:(NSWindow *)sender
5189                         defaultFrame:(NSRect)defaultFrame
5190 {
5191   NSRect result = [sender frame];
5192   static NSRect ns_userRect = { 0, 0, 0, 0 };
5193
5194   NSTRACE (windowWillUseStandardFrame);
5195
5196   if (abs (defaultFrame.size.height - result.size.height)
5197       > FRAME_LINE_HEIGHT (emacsframe))
5198     {
5199       /* first click */
5200       ns_userRect = result;
5201       result.size.height = defaultFrame.size.height;
5202       result.origin.y = defaultFrame.origin.y;
5203     }
5204   else
5205     {
5206       if (abs (defaultFrame.size.width - result.size.width)
5207           > FRAME_COLUMN_WIDTH (emacsframe))
5208         result = defaultFrame;  /* second click */
5209       else
5210         result = ns_userRect.size.height ? ns_userRect : result;  /* restore */
5211     }
5212
5213   [self windowWillResize: sender toSize: result.size];
5214   return result;
5215 }
5216
5217
5218 - (void)windowDidDeminiaturize: sender
5219 {
5220   NSTRACE (windowDidDeminiaturize);
5221   if (!emacsframe->output_data.ns)
5222     return;
5223   emacsframe->async_iconified = 0;
5224   emacsframe->async_visible   = 1;
5225   windows_or_buffers_changed++;
5226
5227   if (emacs_event)
5228     {
5229       emacs_event->kind = ICONIFY_EVENT;
5230       EV_TRAILER ((id)nil);
5231     }
5232 }
5233
5234
5235 - (void)windowDidExpose: sender
5236 {
5237   NSTRACE (windowDidExpose);
5238   if (!emacsframe->output_data.ns)
5239     return;
5240   emacsframe->async_visible = 1;
5241   SET_FRAME_GARBAGED (emacsframe);
5242
5243   if (send_appdefined)
5244     ns_send_appdefined (-1);
5245 }
5246
5247
5248 - (void)windowDidMiniaturize: sender
5249 {
5250   NSTRACE (windowDidMiniaturize);
5251   if (!emacsframe->output_data.ns)
5252     return;
5253
5254   emacsframe->async_iconified = 1;
5255   emacsframe->async_visible = 0;
5256
5257   if (emacs_event)
5258     {
5259       emacs_event->kind = ICONIFY_EVENT;
5260       EV_TRAILER ((id)nil);
5261     }
5262 }
5263
5264
5265 - (void)mouseEntered: (NSEvent *)theEvent
5266 {
5267   NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil];
5268   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (emacsframe);
5269   NSTRACE (mouseEntered);
5270
5271   last_mouse_movement_time = EV_TIMESTAMP (theEvent);
5272 }
5273
5274
5275 - (void)mouseExited: (NSEvent *)theEvent
5276 {
5277   NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil];
5278   NSRect r;
5279   struct ns_display_info *dpyinfo
5280     = emacsframe ? FRAME_NS_DISPLAY_INFO (emacsframe) : NULL;
5281
5282   NSTRACE (mouseExited);
5283
5284   if (dpyinfo || !emacsframe)
5285     return;
5286
5287   last_mouse_movement_time = EV_TIMESTAMP (theEvent);
5288
5289   if (emacsframe == dpyinfo->mouse_face_mouse_frame)
5290     {
5291       clear_mouse_face (dpyinfo);
5292       dpyinfo->mouse_face_mouse_frame = 0;
5293     }
5294 }
5295
5296
5297 - menuDown: sender
5298 {
5299   NSTRACE (menuDown);
5300   if (context_menu_value == -1)
5301     context_menu_value = [sender tag];
5302   else
5303     find_and_call_menu_selection (emacsframe, emacsframe->menu_bar_items_used,
5304                                   emacsframe->menu_bar_vector,
5305                                   (void *)[sender tag]);
5306   ns_send_appdefined (-1);
5307   return self;
5308 }
5309
5310
5311 - (EmacsToolbar *)toolbar
5312 {
5313   return toolbar;
5314 }
5315
5316
5317 /* this gets called on toolbar button click */
5318 - toolbarClicked: (id)item
5319 {
5320   NSEvent *theEvent;
5321   int idx = [item tag] * TOOL_BAR_ITEM_NSLOTS;
5322
5323   NSTRACE (toolbarClicked);
5324
5325   if (!emacs_event)
5326     return self;
5327
5328   /* send first event (for some reason two needed) */
5329   theEvent = [[self window] currentEvent];
5330   emacs_event->kind = TOOL_BAR_EVENT;
5331   XSETFRAME (emacs_event->arg, emacsframe);
5332   EV_TRAILER (theEvent);
5333
5334   emacs_event->kind = TOOL_BAR_EVENT;
5335 /*   XSETINT (emacs_event->code, 0); */
5336   emacs_event->arg = AREF (emacsframe->tool_bar_items,
5337                           idx + TOOL_BAR_ITEM_KEY);
5338   emacs_event->modifiers = EV_MODIFIERS (theEvent);
5339   EV_TRAILER (theEvent);
5340   return self;
5341 }
5342
5343
5344 - toggleToolbar: (id)sender
5345 {
5346   if (!emacs_event)
5347     return self;
5348
5349   emacs_event->kind = NS_NONKEY_EVENT;
5350   emacs_event->code = KEY_NS_TOGGLE_TOOLBAR;
5351   EV_TRAILER ((id)nil);
5352   return self;
5353 }
5354
5355
5356 - (void)drawRect: (NSRect)rect
5357 {
5358   int x = NSMinX (rect), y = NSMinY (rect);
5359   int width = NSWidth (rect), height = NSHeight (rect);
5360
5361   NSTRACE (drawRect);
5362
5363   if (!emacsframe || !emacsframe->output_data.ns || ns_in_resize)
5364     return;
5365
5366   ns_clear_frame_area (emacsframe, x, y, width, height);
5367   expose_frame (emacsframe, x, y, width, height);
5368
5369   /*
5370     drawRect: may be called (at least in OS X 10.5) for invisible
5371     views as well for some reason.  Thus, do not infer visibility
5372     here.
5373
5374     emacsframe->async_visible = 1;
5375     emacsframe->async_iconified = 0;
5376   */
5377 }
5378
5379
5380 /* NSDraggingDestination protocol methods.  Actually this is not really a
5381    protocol, but a category of Object.  O well...  */
5382
5383 -(NSUInteger) draggingEntered: (id <NSDraggingInfo>) sender
5384 {
5385   NSTRACE (draggingEntered);
5386   return NSDragOperationGeneric;
5387 }
5388
5389
5390 -(BOOL)prepareForDragOperation: (id <NSDraggingInfo>) sender
5391 {
5392   return YES;
5393 }
5394
5395
5396 -(BOOL)performDragOperation: (id <NSDraggingInfo>) sender
5397 {
5398   id pb;
5399   int x, y;
5400   NSString *type;
5401   NSEvent *theEvent = [[self window] currentEvent];
5402   NSPoint position;
5403
5404   NSTRACE (performDragOperation);
5405
5406   if (!emacs_event)
5407     return;
5408
5409   position = [self convertPoint: [sender draggingLocation] fromView: nil];
5410   x = lrint (position.x);  y = lrint (position.y);
5411
5412   pb = [sender draggingPasteboard];
5413   type = [pb availableTypeFromArray: ns_drag_types];
5414   if (type == 0)
5415     {
5416       return NO;
5417     }
5418   else if ([type isEqualToString: NSFilenamesPboardType])
5419     {
5420       NSArray *files;
5421       NSEnumerator *fenum;
5422       NSString *file;
5423
5424       if (!(files = [pb propertyListForType: type]))
5425         return NO;
5426
5427       fenum = [files objectEnumerator];
5428       while ( (file = [fenum nextObject]) )
5429         {
5430           emacs_event->kind = NS_NONKEY_EVENT;
5431           emacs_event->code = KEY_NS_DRAG_FILE;
5432           XSETINT (emacs_event->x, x);
5433           XSETINT (emacs_event->y, y);
5434           ns_input_file = append2 (ns_input_file,
5435                                    build_string ([file UTF8String]));
5436           emacs_event->modifiers = EV_MODIFIERS (theEvent);
5437           EV_TRAILER (theEvent);
5438         }
5439       return YES;
5440     }
5441   else if ([type isEqualToString: NSURLPboardType])
5442     {
5443       NSString *file;
5444       NSURL *fileURL;
5445
5446       if (!(fileURL = [NSURL URLFromPasteboard: pb]) ||
5447           [fileURL isFileURL] == NO)
5448         return NO;
5449
5450       file = [fileURL path];
5451       emacs_event->kind = NS_NONKEY_EVENT;
5452       emacs_event->code = KEY_NS_DRAG_FILE;
5453       XSETINT (emacs_event->x, x);
5454       XSETINT (emacs_event->y, y);
5455       ns_input_file = append2 (ns_input_file, build_string ([file UTF8String]));
5456       emacs_event->modifiers = EV_MODIFIERS (theEvent);
5457       EV_TRAILER (theEvent);
5458       return YES;
5459     }
5460   else if ([type isEqualToString: NSStringPboardType]
5461            || [type isEqualToString: NSTabularTextPboardType])
5462     {
5463       NSString *data;
5464
5465       if (! (data = [pb stringForType: type]))
5466         return NO;
5467
5468       emacs_event->kind = NS_NONKEY_EVENT;
5469       emacs_event->code = KEY_NS_DRAG_TEXT;
5470       XSETINT (emacs_event->x, x);
5471       XSETINT (emacs_event->y, y);
5472       ns_input_text = build_string ([data UTF8String]);
5473       emacs_event->modifiers = EV_MODIFIERS (theEvent);
5474       EV_TRAILER (theEvent);
5475       return YES;
5476     }
5477   else if ([type isEqualToString: NSColorPboardType])
5478     {
5479       NSColor *c = [NSColor colorFromPasteboard: pb];
5480       emacs_event->kind = NS_NONKEY_EVENT;
5481       emacs_event->code = KEY_NS_DRAG_COLOR;
5482       XSETINT (emacs_event->x, x);
5483       XSETINT (emacs_event->y, y);
5484       ns_input_color = ns_color_to_lisp (c);
5485       emacs_event->modifiers = EV_MODIFIERS (theEvent);
5486       EV_TRAILER (theEvent);
5487       return YES;
5488     }
5489   else if ([type isEqualToString: NSFontPboardType])
5490     {
5491       /* impl based on GNUstep NSTextView.m */
5492       NSData *data = [pb dataForType: NSFontPboardType];
5493       NSDictionary *dict = [NSUnarchiver unarchiveObjectWithData: data];
5494       NSFont *font = [dict objectForKey: NSFontAttributeName];
5495       char fontSize[10];
5496
5497       if (font == nil)
5498         return NO;
5499
5500       emacs_event->kind = NS_NONKEY_EVENT;
5501       emacs_event->code = KEY_NS_CHANGE_FONT;
5502       XSETINT (emacs_event->x, x);
5503       XSETINT (emacs_event->y, y);
5504       ns_input_font = build_string ([[font fontName] UTF8String]);
5505       snprintf (fontSize, 10, "%f", [font pointSize]);
5506       ns_input_fontsize = build_string (fontSize);
5507       emacs_event->modifiers = EV_MODIFIERS (theEvent);
5508       EV_TRAILER (theEvent);
5509       return YES;
5510     }
5511   else
5512     {
5513       error ("Invalid data type in dragging pasteboard.");
5514       return NO;
5515     }
5516 }
5517
5518
5519 - validRequestorForSendType: (NSString *)typeSent
5520                  returnType: (NSString *)typeReturned
5521 {
5522   NSTRACE (validRequestorForSendType);
5523   if ([ns_send_types indexOfObjectIdenticalTo: typeSent] != NSNotFound &&
5524       [ns_return_types indexOfObjectIdenticalTo: typeSent] != NSNotFound)
5525     return self;
5526
5527   return [super validRequestorForSendType: typeSent
5528                                returnType: typeReturned];
5529 }
5530
5531
5532 /* The next two methods are part of NSServicesRequests informal protocol,
5533    supposedly called when a services menu item is chosen from this app.
5534    But this should not happen because we override the services menu with our
5535    own entries which call ns-perform-service.
5536    Nonetheless, it appeared to happen (under strange circumstances): bug#1435.
5537    So let's at least stub them out until further investigation can be done. */
5538
5539 - (BOOL) readSelectionFromPasteboard: (NSPasteboard *)pb
5540 {
5541   /* we could call ns_string_from_pasteboard(pboard) here but then it should
5542      be written into the buffer in place of the existing selection..
5543      ordinary service calls go through functions defined in ns-win.el */
5544   return NO;
5545 }
5546
5547 - (BOOL) writeSelectionToPasteboard: (NSPasteboard *)pb types: (NSArray *)types
5548 {
5549   /* supposed to write for as many of types as we are able */
5550   return NO;
5551 }
5552
5553
5554 /* setMini =YES means set from internal (gives a finder icon), NO means set nil
5555    (gives a miniaturized version of the window); currently we use the latter for
5556    frames whose active buffer doesn't correspond to any file
5557    (e.g., '*scratch*') */
5558 - setMiniwindowImage: (BOOL) setMini
5559 {
5560   id image = [[self window] miniwindowImage];
5561   NSTRACE (setMiniwindowImage);
5562
5563   /* NOTE: under Cocoa miniwindowImage always returns nil, documentation
5564      about "AppleDockIconEnabled" notwithstanding, however the set message
5565      below has its effect nonetheless. */
5566   if (image != emacsframe->output_data.ns->miniimage)
5567     {
5568       if (image && [image isKindOfClass: [EmacsImage class]])
5569         [image release];
5570       [[self window] setMiniwindowImage:
5571                        setMini ? emacsframe->output_data.ns->miniimage : nil];
5572     }
5573
5574   return self;
5575 }
5576
5577
5578 - (void) setRows: (int) r andColumns: (int) c
5579 {
5580   rows = r;
5581   cols = c;
5582 }
5583
5584 @end  /* EmacsView */
5585
5586
5587
5588 /* ==========================================================================
5589
5590     EmacsWindow implementation
5591
5592    ========================================================================== */
5593
5594 @implementation EmacsWindow
5595
5596 /* called only on resize clicks by special case in EmacsApp-sendEvent */
5597 - (void)mouseDown: (NSEvent *)theEvent
5598 {
5599   if (ns_in_resize)
5600     {
5601       NSSize size = [[theEvent window] frame].size;
5602       grabOffset = [theEvent locationInWindow];
5603       grabOffset.x = size.width - grabOffset.x;
5604     }
5605   else
5606     [super mouseDown: theEvent];
5607 }
5608
5609
5610 /* stop resizing */
5611 - (void)mouseUp: (NSEvent *)theEvent
5612 {
5613   if (ns_in_resize)
5614     {
5615       struct frame *f = ((EmacsView *)[self delegate])->emacsframe;
5616       ns_in_resize = NO;
5617       ns_set_name_as_filename (f);
5618       [self display];
5619       ns_send_appdefined (-1);
5620     }
5621   else
5622     [super mouseUp: theEvent];
5623 }
5624
5625
5626 /* send resize events */
5627 - (void)mouseDragged: (NSEvent *)theEvent
5628 {
5629   if (ns_in_resize)
5630     {
5631       NSPoint p = [theEvent locationInWindow];
5632       NSSize size, vettedSize, origSize = [self frame].size;
5633
5634       size.width = p.x + grabOffset.x;
5635       size.height = origSize.height - p.y + grabOffset.y;
5636
5637       if (size.width == origSize.width && size.height == origSize.height)
5638         return;
5639
5640       vettedSize = [[self delegate] windowWillResize: self toSize: size];
5641       if (vettedSize.width != size.width || vettedSize.height != size.height)
5642         {
5643           [[NSNotificationCenter defaultCenter]
5644             postNotificationName: NSWindowDidResizeNotification
5645                           object: self];
5646         }
5647     }
5648   else
5649     [super mouseDragged: theEvent];
5650 }
5651
5652 @end /* EmacsWindow */
5653
5654
5655 /* ==========================================================================
5656
5657     EmacsScroller implementation
5658
5659    ========================================================================== */
5660
5661
5662 @implementation EmacsScroller
5663
5664 /* for repeat button push */
5665 #define SCROLL_BAR_FIRST_DELAY 0.5
5666 #define SCROLL_BAR_CONTINUOUS_DELAY (1.0 / 15)
5667
5668 + (CGFloat) scrollerWidth
5669 {
5670   /* TODO: if we want to allow variable widths, this is the place to do it,
5671            however neither GNUstep nor Cocoa support it very well */
5672   return [NSScroller scrollerWidth];
5673 }
5674
5675
5676 - initFrame: (NSRect )r window: (Lisp_Object)nwin
5677 {
5678   NSTRACE (EmacsScroller_initFrame);
5679
5680   r.size.width = [EmacsScroller scrollerWidth];
5681   [super initWithFrame: r/*NSMakeRect (0, 0, 0, 0)*/];
5682   [self setContinuous: YES];
5683   [self setEnabled: YES];
5684
5685   /* Ensure auto resizing of scrollbars occurs within the emacs frame's view
5686      locked against the top and bottom edges, and right edge on OS X, where
5687      scrollers are on right. */
5688 #ifdef NS_IMPL_GNUSTEP
5689   [self setAutoresizingMask: NSViewMaxXMargin | NSViewHeightSizable];
5690 #else
5691   [self setAutoresizingMask: NSViewMinXMargin | NSViewHeightSizable];
5692 #endif
5693
5694   win = nwin;
5695   condemned = NO;
5696   pixel_height = NSHeight (r);
5697   min_portion = 20 / pixel_height;
5698
5699   frame = XFRAME (XWINDOW (win)->frame);
5700   if (FRAME_LIVE_P (frame))
5701     {
5702       int i;
5703       EmacsView *view = FRAME_NS_VIEW (frame);
5704       NSView *sview = [[view window] contentView];
5705       NSArray *subs = [sview subviews];
5706
5707       /* disable optimization stopping redraw of other scrollbars */
5708       view->scrollbarsNeedingUpdate = 0;
5709       for (i =[subs count]-1; i >= 0; i--)
5710         if ([[subs objectAtIndex: i] isKindOfClass: [EmacsScroller class]])
5711           view->scrollbarsNeedingUpdate++;
5712       [sview addSubview: self];
5713     }
5714
5715 /*  [self setFrame: r]; */
5716
5717   return self;
5718 }
5719
5720
5721 - (void)setFrame: (NSRect)newRect
5722 {
5723   NSTRACE (EmacsScroller_setFrame);
5724 /*  BLOCK_INPUT; */
5725   pixel_height = NSHeight (newRect);
5726   min_portion = 20 / pixel_height;
5727   [super setFrame: newRect];
5728   [self display];
5729 /*  UNBLOCK_INPUT; */
5730 }
5731
5732
5733 - (void)dealloc
5734 {
5735   NSTRACE (EmacsScroller_dealloc);
5736   if (!NILP (win))
5737     XWINDOW (win)->vertical_scroll_bar = Qnil;
5738   [super dealloc];
5739 }
5740
5741
5742 - condemn
5743 {
5744   NSTRACE (condemn);
5745   condemned =YES;
5746   return self;
5747 }
5748
5749
5750 - reprieve
5751 {
5752   NSTRACE (reprieve);
5753   condemned =NO;
5754   return self;
5755 }
5756
5757
5758 - judge
5759 {
5760   NSTRACE (judge);
5761   if (condemned)
5762     {
5763       EmacsView *view;
5764       BLOCK_INPUT;
5765       /* ensure other scrollbar updates after deletion */
5766       view = (EmacsView *)FRAME_NS_VIEW (frame);
5767       if (view != nil)
5768         view->scrollbarsNeedingUpdate++;
5769       [self removeFromSuperview];
5770       [self release];
5771       UNBLOCK_INPUT;
5772     }
5773   return self;
5774 }
5775
5776
5777 - (void)resetCursorRects
5778 {
5779   NSRect visible = [self visibleRect];
5780   NSTRACE (resetCursorRects);
5781
5782   if (!NSIsEmptyRect (visible))
5783     [self addCursorRect: visible cursor: [NSCursor arrowCursor]];
5784   [[NSCursor arrowCursor] setOnMouseEntered: YES];
5785 }
5786
5787
5788 - (int) checkSamePosition: (int) position portion: (int) portion
5789                     whole: (int) whole
5790 {
5791   return em_position ==position && em_portion ==portion && em_whole ==whole
5792     && portion != whole; /* needed for resize empty buf */
5793 }
5794
5795
5796 - setPosition: (int)position portion: (int)portion whole: (int)whole
5797 {
5798   NSTRACE (setPosition);
5799
5800   em_position = position;
5801   em_portion = portion;
5802   em_whole = whole;
5803
5804   if (portion >= whole)
5805     [self setFloatValue: 0.0 knobProportion: 1.0];
5806   else
5807     {
5808       float pos, por;
5809       portion = max ((float)whole*min_portion/pixel_height, portion);
5810       pos = (float)position / (whole - portion);
5811       por = (float)portion/whole;
5812       [self setFloatValue: pos knobProportion: por];
5813     }
5814   return self;
5815 }
5816
5817 /* FIXME: unused at moment (see ns_mouse_position) at the moment because
5818      drag events will go directly to the EmacsScroller.  Leaving in for now. */
5819 -(void)getMouseMotionPart: (int *)part window: (Lisp_Object *)window
5820                         x: (Lisp_Object *)x y: ( Lisp_Object *)y
5821 {
5822   *part = last_hit_part;
5823   *window = win;
5824   XSETINT (*y, pixel_height);
5825   if ([self floatValue] > 0.999)
5826     XSETINT (*x, pixel_height);
5827   else
5828     XSETINT (*x, pixel_height * [self floatValue]);
5829 }
5830
5831
5832 /* set up emacs_event */
5833 - (void) sendScrollEventAtLoc: (float)loc fromEvent: (NSEvent *)e
5834 {
5835   if (!emacs_event)
5836     return;
5837
5838   emacs_event->part = last_hit_part;
5839   emacs_event->code = 0;
5840   emacs_event->modifiers = EV_MODIFIERS (e) | down_modifier;
5841   emacs_event->frame_or_window = win;
5842   emacs_event->timestamp = EV_TIMESTAMP (e);
5843   emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
5844   emacs_event->arg = Qnil;
5845   XSETINT (emacs_event->x, loc * pixel_height);
5846   XSETINT (emacs_event->y, pixel_height-20);
5847
5848   n_emacs_events_pending++;
5849   kbd_buffer_store_event_hold (emacs_event, q_event_ptr);
5850   EVENT_INIT (*emacs_event);
5851   ns_send_appdefined (-1);
5852 }
5853
5854
5855 /* called manually thru timer to implement repeated button action w/hold-down */
5856 - repeatScroll: (NSTimer *)scrollEntry
5857 {
5858   NSEvent *e = [[self window] currentEvent];
5859   NSPoint p =  [[self window] mouseLocationOutsideOfEventStream];
5860   BOOL inKnob = [self testPart: p] == NSScrollerKnob;
5861
5862   /* clear timer if need be */
5863   if (inKnob || [scroll_repeat_entry timeInterval] == SCROLL_BAR_FIRST_DELAY)
5864     {
5865         [scroll_repeat_entry invalidate];
5866         [scroll_repeat_entry release];
5867         scroll_repeat_entry = nil;
5868
5869         if (inKnob)
5870           return self;
5871
5872         scroll_repeat_entry
5873           = [[NSTimer scheduledTimerWithTimeInterval:
5874                         SCROLL_BAR_CONTINUOUS_DELAY
5875                                             target: self
5876                                           selector: @selector (repeatScroll:)
5877                                           userInfo: 0
5878                                            repeats: YES]
5879               retain];
5880     }
5881
5882   [self sendScrollEventAtLoc: 0 fromEvent: e];
5883   return self;
5884 }
5885
5886
5887 /* Asynchronous mouse tracking for scroller.  This allows us to dispatch
5888    mouseDragged events without going into a modal loop. */
5889 - (void)mouseDown: (NSEvent *)e
5890 {
5891   NSRect sr, kr;
5892   /* hitPart is only updated AFTER event is passed on */
5893   NSScrollerPart part = [self testPart: [e locationInWindow]];
5894   double inc = 0.0, loc, kloc, pos;
5895   int edge = 0;
5896
5897   NSTRACE (EmacsScroller_mouseDown);
5898
5899   switch (part)
5900     {
5901     case NSScrollerDecrementPage:
5902         last_hit_part = scroll_bar_above_handle; inc = -1.0; break;
5903     case NSScrollerIncrementPage:
5904         last_hit_part = scroll_bar_below_handle; inc = 1.0; break;
5905     case NSScrollerDecrementLine:
5906       last_hit_part = scroll_bar_up_arrow; inc = -0.1; break;
5907     case NSScrollerIncrementLine:
5908       last_hit_part = scroll_bar_down_arrow; inc = 0.1; break;
5909     case NSScrollerKnob:
5910       last_hit_part = scroll_bar_handle; break;
5911     case NSScrollerKnobSlot:  /* GNUstep-only */
5912       last_hit_part = scroll_bar_move_ratio; break;
5913     default:  /* NSScrollerNoPart? */
5914       fprintf (stderr, "EmacsScoller-mouseDown: unexpected part %ld\n",
5915                (long) part);
5916       return;
5917     }
5918
5919   if (inc != 0.0)
5920     {
5921       pos = 0;      /* ignored */
5922
5923       /* set a timer to repeat, as we can't let superclass do this modally */
5924       scroll_repeat_entry
5925         = [[NSTimer scheduledTimerWithTimeInterval: SCROLL_BAR_FIRST_DELAY
5926                                             target: self
5927                                           selector: @selector (repeatScroll:)
5928                                           userInfo: 0
5929                                            repeats: YES]
5930             retain];
5931     }
5932   else
5933     {
5934       /* handle, or on GNUstep possibly slot */
5935       NSEvent *fake_event;
5936
5937       /* compute float loc in slot and mouse offset on knob */
5938       sr = [self convertRect: [self rectForPart: NSScrollerKnobSlot]
5939                       toView: nil];
5940       loc = NSHeight (sr) - ([e locationInWindow].y - NSMinY (sr));
5941       if (loc <= 0.0)
5942         {
5943           loc = 0.0;
5944           edge = -1;
5945         }
5946       else if (loc >= NSHeight (sr))
5947         {
5948           loc = NSHeight (sr);
5949           edge = 1;
5950         }
5951
5952       if (edge)
5953         kloc = 0.5 * edge;
5954       else
5955         {
5956           kr = [self convertRect: [self rectForPart: NSScrollerKnob]
5957                           toView: nil];
5958           kloc = NSHeight (kr) - ([e locationInWindow].y - NSMinY (kr));
5959         }
5960       last_mouse_offset = kloc;
5961
5962       /* if knob, tell emacs a location offset by knob pos
5963          (to indicate top of handle) */
5964       if (part == NSScrollerKnob)
5965           pos = (loc - last_mouse_offset) / NSHeight (sr);
5966       else
5967         /* else this is a slot click on GNUstep: go straight there */
5968         pos = loc / NSHeight (sr);
5969
5970       /* send a fake mouse-up to super to preempt modal -trackKnob: mode */
5971       fake_event = [NSEvent mouseEventWithType: NSLeftMouseUp
5972                                       location: [e locationInWindow]
5973                                  modifierFlags: [e modifierFlags]
5974                                      timestamp: [e timestamp]
5975                                   windowNumber: [e windowNumber]
5976                                        context: [e context]
5977                                    eventNumber: [e eventNumber]
5978                                     clickCount: [e clickCount]
5979                                       pressure: [e pressure]];
5980       [super mouseUp: fake_event];
5981     }
5982
5983   if (part != NSScrollerKnob)
5984     [self sendScrollEventAtLoc: pos fromEvent: e];
5985 }
5986
5987
5988 /* Called as we manually track scroller drags, rather than superclass. */
5989 - (void)mouseDragged: (NSEvent *)e
5990 {
5991     NSRect sr;
5992     double loc, pos;
5993     int edge = 0;
5994
5995     NSTRACE (EmacsScroller_mouseDragged);
5996
5997       sr = [self convertRect: [self rectForPart: NSScrollerKnobSlot]
5998                       toView: nil];
5999       loc = NSHeight (sr) - ([e locationInWindow].y - NSMinY (sr));
6000
6001       if (loc <= 0.0)
6002         {
6003           loc = 0.0;
6004           edge = -1;
6005         }
6006       else if (loc >= NSHeight (sr) + last_mouse_offset)
6007         {
6008           loc = NSHeight (sr) + last_mouse_offset;
6009           edge = 1;
6010         }
6011
6012       pos = /*(edge ? loc :*/ (loc - last_mouse_offset) / NSHeight (sr);
6013       [self sendScrollEventAtLoc: pos fromEvent: e];
6014 }
6015
6016
6017 - (void)mouseUp: (NSEvent *)e
6018 {
6019   if (scroll_repeat_entry)
6020     {
6021       [scroll_repeat_entry invalidate];
6022       [scroll_repeat_entry release];
6023       scroll_repeat_entry = nil;
6024     }
6025   last_hit_part = 0;
6026 }
6027
6028
6029 /* treat scrollwheel events in the bar as though they were in the main window */
6030 - (void) scrollWheel: (NSEvent *)theEvent
6031 {
6032   EmacsView *view = (EmacsView *)FRAME_NS_VIEW (frame);
6033   [view mouseDown: theEvent];
6034 }
6035
6036 @end  /* EmacsScroller */
6037
6038
6039
6040
6041 /* ==========================================================================
6042
6043    Font-related functions; these used to be in nsfaces.m
6044
6045    ========================================================================== */
6046
6047
6048 Lisp_Object
6049 x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
6050 {
6051   struct font *font = XFONT_OBJECT (font_object);
6052
6053   if (fontset < 0)
6054     fontset = fontset_from_font (font_object);
6055   FRAME_FONTSET (f) = fontset;
6056
6057   if (FRAME_FONT (f) == font)
6058     /* This font is already set in frame F.  There's nothing more to
6059        do.  */
6060     return font_object;
6061
6062   FRAME_FONT (f) = font;
6063
6064   FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
6065   FRAME_COLUMN_WIDTH (f) = font->average_width;
6066   FRAME_SPACE_WIDTH (f) = font->space_width;
6067   FRAME_LINE_HEIGHT (f) = font->height;
6068
6069   compute_fringe_widths (f, 1);
6070
6071   /* Compute the scroll bar width in character columns.  */
6072   if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
6073     {
6074       int wid = FRAME_COLUMN_WIDTH (f);
6075       FRAME_CONFIG_SCROLL_BAR_COLS (f)
6076         = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid - 1) / wid;
6077     }
6078   else
6079     {
6080       int wid = FRAME_COLUMN_WIDTH (f);
6081       FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
6082     }
6083
6084   /* Now make the frame display the given font.  */
6085   if (FRAME_NS_WINDOW (f) != 0)
6086         x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
6087
6088   return font_object;
6089 }
6090
6091
6092 /* XLFD: -foundry-family-weight-slant-swidth-adstyle-pxlsz-ptSz-resx-resy-spc-avgWidth-rgstry-encoding */
6093 /* Note: ns_font_to_xlfd and ns_fontname_to_xlfd no longer needed, removed
6094          in 1.43. */
6095
6096 const char *
6097 ns_xlfd_to_fontname (const char *xlfd)
6098 /* --------------------------------------------------------------------------
6099     Convert an X font name (XLFD) to an NS font name.
6100     Only family is used.
6101     The string returned is temporarily allocated.
6102    -------------------------------------------------------------------------- */
6103 {
6104   char *name = xmalloc (180);
6105   int i, len;
6106   const char *ret;
6107
6108   if (!strncmp (xlfd, "--", 2))
6109     sscanf (xlfd, "--%*[^-]-%[^-]179-", name);
6110   else
6111     sscanf (xlfd, "-%*[^-]-%[^-]179-", name);
6112
6113   /* stopgap for malformed XLFD input */
6114   if (strlen (name) == 0)
6115     strcpy (name, "Monaco");
6116
6117   /* undo hack in ns_fontname_to_xlfd, converting '$' to '-', '_' to ' '
6118      also uppercase after '-' or ' ' */
6119   name[0] = toupper (name[0]);
6120   for (len =strlen (name), i =0; i<len; i++)
6121     {
6122       if (name[i] == '$')
6123         {
6124           name[i] = '-';
6125           if (i+1<len)
6126             name[i+1] = toupper (name[i+1]);
6127         }
6128       else if (name[i] == '_')
6129         {
6130           name[i] = ' ';
6131           if (i+1<len)
6132             name[i+1] = toupper (name[i+1]);
6133         }
6134     }
6135 /*fprintf (stderr, "converted '%s' to '%s'\n",xlfd,name);  */
6136   ret = [[NSString stringWithUTF8String: name] UTF8String];
6137   xfree (name);
6138   return ret;
6139 }
6140
6141
6142 void
6143 syms_of_nsterm (void)
6144 {
6145   NSTRACE (syms_of_nsterm);
6146
6147   ns_antialias_threshold = 10.0;
6148
6149   /* from 23+ we need to tell emacs what modifiers there are.. */
6150   DEFSYM (Qmodifier_value, "modifier-value");
6151   DEFSYM (Qalt, "alt");
6152   DEFSYM (Qhyper, "hyper");
6153   DEFSYM (Qmeta, "meta");
6154   DEFSYM (Qsuper, "super");
6155   DEFSYM (Qcontrol, "control");
6156   DEFSYM (Qnone, "none");
6157   Fput (Qalt, Qmodifier_value, make_number (alt_modifier));
6158   Fput (Qhyper, Qmodifier_value, make_number (hyper_modifier));
6159   Fput (Qmeta, Qmodifier_value, make_number (meta_modifier));
6160   Fput (Qsuper, Qmodifier_value, make_number (super_modifier));
6161   Fput (Qcontrol, Qmodifier_value, make_number (ctrl_modifier));
6162
6163   DEFVAR_LISP ("ns-input-file", &ns_input_file,
6164               "The file specified in the last NS event.");
6165   ns_input_file =Qnil;
6166
6167   DEFVAR_LISP ("ns-input-text", &ns_input_text,
6168               "The data received in the last NS text drag event.");
6169   ns_input_text =Qnil;
6170
6171   DEFVAR_LISP ("ns-working-text", &ns_working_text,
6172               "String for visualizing working composition sequence.");
6173   ns_working_text =Qnil;
6174
6175   DEFVAR_LISP ("ns-input-font", &ns_input_font,
6176               "The font specified in the last NS event.");
6177   ns_input_font =Qnil;
6178
6179   DEFVAR_LISP ("ns-input-fontsize", &ns_input_fontsize,
6180               "The fontsize specified in the last NS event.");
6181   ns_input_fontsize =Qnil;
6182
6183   DEFVAR_LISP ("ns-input-line", &ns_input_line,
6184                "The line specified in the last NS event.");
6185   ns_input_line =Qnil;
6186
6187   DEFVAR_LISP ("ns-input-color", &ns_input_color,
6188                "The color specified in the last NS event.");
6189   ns_input_color =Qnil;
6190
6191   DEFVAR_LISP ("ns-input-spi-name", &ns_input_spi_name,
6192                "The service name specified in the last NS event.");
6193   ns_input_spi_name =Qnil;
6194
6195   DEFVAR_LISP ("ns-input-spi-arg", &ns_input_spi_arg,
6196                "The service argument specified in the last NS event.");
6197   ns_input_spi_arg =Qnil;
6198
6199   DEFVAR_LISP ("ns-alternate-modifier", &ns_alternate_modifier,
6200                "This variable describes the behavior of the alternate or option key.\n\
6201 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
6202 Set to none means that the alternate / option key is not interpreted by Emacs\n\
6203 at all, allowing it to be used at a lower level for accented character entry.");
6204   ns_alternate_modifier = Qmeta;
6205
6206   DEFVAR_LISP ("ns-command-modifier", &ns_command_modifier,
6207                "This variable describes the behavior of the command key.\n\
6208 Set to control, meta, alt, super, or hyper means it is taken to be that key.");
6209   ns_command_modifier = Qsuper;
6210
6211   DEFVAR_LISP ("ns-control-modifier", &ns_control_modifier,
6212                "This variable describes the behavior of the control key.\n\
6213 Set to control, meta, alt, super, or hyper means it is taken to be that key.");
6214   ns_control_modifier = Qcontrol;
6215
6216   DEFVAR_LISP ("ns-function-modifier", &ns_function_modifier,
6217                "This variable describes the behavior of the function key (on laptops).\n\
6218 Set to control, meta, alt, super, or hyper means it is taken to be that key.\n\
6219 Set to none means that the function key is not interpreted by Emacs at all,\n\
6220 allowing it to be used at a lower level for accented character entry.");
6221   ns_function_modifier = Qnone;
6222
6223   DEFVAR_LISP ("ns-antialias-text", &ns_antialias_text,
6224                "Non-nil (the default) means to render text antialiased. Only has an effect on OS X Panther and above.");
6225   ns_antialias_text = Qt;
6226
6227   DEFVAR_LISP ("ns-confirm-quit", &ns_confirm_quit,
6228                "Whether to confirm application quit using dialog.");
6229   ns_confirm_quit = Qnil;
6230
6231   staticpro (&ns_display_name_list);
6232   ns_display_name_list = Qnil;
6233
6234   staticpro (&last_mouse_motion_frame);
6235   last_mouse_motion_frame = Qnil;
6236
6237   /* TODO: move to common code */
6238   DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
6239                doc: /* If not nil, Emacs uses toolkit scroll bars.  */);
6240 #ifdef USE_TOOLKIT_SCROLL_BARS
6241   Vx_toolkit_scroll_bars = Qt;
6242 #else
6243   Vx_toolkit_scroll_bars = Qnil;
6244 #endif
6245
6246   /* these are unsupported but we need the declarations to avoid whining
6247      messages from cus-start.el */
6248   DEFVAR_BOOL ("x-use-underline-position-properties",
6249                &x_use_underline_position_properties,
6250      doc: /* NOT SUPPORTED UNDER NS.
6251 *Non-nil means make use of UNDERLINE_POSITION font properties.
6252 A value of nil means ignore them.  If you encounter fonts with bogus
6253 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
6254 to 4.1, set this to nil.
6255
6256 NOTE: Not supported on Mac yet.  */);
6257   x_use_underline_position_properties = 0;
6258
6259   DEFVAR_BOOL ("x-underline-at-descent-line",
6260                &x_underline_at_descent_line,
6261      doc: /* NOT SUPPORTED UNDER NS.
6262 *Non-nil means to draw the underline at the same place as the descent line.
6263 A value of nil means to draw the underline according to the value of the
6264 variable `x-use-underline-position-properties', which is usually at the
6265 baseline level.  The default value is nil.  */);
6266   x_underline_at_descent_line = 0;
6267
6268   /* Tell emacs about this window system. */
6269   Fprovide (intern ("ns"), Qnil);
6270 }
6271
6272
6273 // arch-tag: 6eaa8f7d-a69b-4e1c-b43d-ab31defbe0d2