/* Window creation, deletion and examination for GNU Emacs.
Does not include redisplay.
- Copyright (C) 1985-1987, 1993-1998, 2000-2012
- Free Software Foundation, Inc.
+ Copyright (C) 1985-1987, 1993-1998, 2000-2013 Free Software
+ Foundation, Inc.
This file is part of GNU Emacs.
#define WINDOW_INLINE EXTERN_INLINE
#include <stdio.h>
-#include <setjmp.h>
#include "lisp.h"
#include "character.h"
#ifdef HAVE_X_WINDOWS
#include "xterm.h"
#endif /* HAVE_X_WINDOWS */
-#ifdef WINDOWSNT
+#ifdef HAVE_NTGUI
#include "w32term.h"
#endif
#ifdef MSDOS
static Lisp_Object Qreplace_buffer_in_windows, Qget_mru_window;
static Lisp_Object Qwindow_resize_root_window, Qwindow_resize_root_window_vertically;
static Lisp_Object Qscroll_up, Qscroll_down, Qscroll_command;
-static Lisp_Object Qsafe, Qabove, Qbelow;
-static Lisp_Object Qauto_buffer_name, Qclone_of;
+static Lisp_Object Qsafe, Qabove, Qbelow, Qwindow_size, Qclone_of;
static int displayed_window_lines (struct window *);
static int count_windows (struct window *);
static EMACS_INT window_scroll_preserve_vpos;
\f
/* These setters are used only in this file, so they can be private. */
-static inline void
+static void
wset_combination_limit (struct window *w, Lisp_Object val)
{
w->combination_limit = val;
}
-static inline void
+static void
wset_dedicated (struct window *w, Lisp_Object val)
{
w->dedicated = val;
}
-static inline void
+static void
wset_display_table (struct window *w, Lisp_Object val)
{
w->display_table = val;
}
-static inline void
+static void
wset_hchild (struct window *w, Lisp_Object val)
{
w->hchild = val;
}
-static inline void
+static void
wset_left_fringe_width (struct window *w, Lisp_Object val)
{
w->left_fringe_width = val;
}
-static inline void
+static void
wset_left_margin_cols (struct window *w, Lisp_Object val)
{
w->left_margin_cols = val;
}
-static inline void
+static void
wset_new_normal (struct window *w, Lisp_Object val)
{
w->new_normal = val;
}
-static inline void
+static void
wset_new_total (struct window *w, Lisp_Object val)
{
w->new_total = val;
}
-static inline void
-wset_next_buffers (struct window *w, Lisp_Object val)
-{
- w->next_buffers = val;
-}
-static inline void
+static void
wset_normal_cols (struct window *w, Lisp_Object val)
{
w->normal_cols = val;
}
-static inline void
+static void
wset_normal_lines (struct window *w, Lisp_Object val)
{
w->normal_lines = val;
}
-static inline void
+static void
wset_parent (struct window *w, Lisp_Object val)
{
w->parent = val;
}
-static inline void
+static void
wset_pointm (struct window *w, Lisp_Object val)
{
w->pointm = val;
}
-static inline void
-wset_prev_buffers (struct window *w, Lisp_Object val)
-{
- w->prev_buffers = val;
-}
-static inline void
+static void
wset_right_fringe_width (struct window *w, Lisp_Object val)
{
w->right_fringe_width = val;
}
-static inline void
+static void
wset_right_margin_cols (struct window *w, Lisp_Object val)
{
w->right_margin_cols = val;
}
-static inline void
+static void
wset_scroll_bar_width (struct window *w, Lisp_Object val)
{
w->scroll_bar_width = val;
}
-static inline void
+static void
wset_start (struct window *w, Lisp_Object val)
{
w->start = val;
}
-static inline void
+static void
wset_temslot (struct window *w, Lisp_Object val)
{
w->temslot = val;
}
-static inline void
+static void
wset_vchild (struct window *w, Lisp_Object val)
{
w->vchild = val;
}
-static inline void
+static void
wset_vertical_scroll_bar_type (struct window *w, Lisp_Object val)
{
w->vertical_scroll_bar_type = val;
}
-static inline void
+static void
wset_window_parameters (struct window *w, Lisp_Object val)
{
w->window_parameters = val;
else if (! NILP (XWINDOW (window)->vchild))
window = XWINDOW (window)->vchild;
else
- abort ();
+ emacs_abort ();
}
return window;
}
DEFUN ("select-window", Fselect_window, Sselect_window, 1, 2, 0,
- doc: /* Select WINDOW. Most editing will apply to WINDOW's buffer.
-Also make WINDOW's buffer current and make WINDOW the frame's selected
-window. Return WINDOW.
+ doc: /* Select WINDOW which must be a live window.
+Also make WINDOW's frame the selected frame and WINDOW that frame's
+selected window. In addition, make WINDOW's buffer current and set that
+buffer's value of `point' to the value of WINDOW's `window-point'.
+Return WINDOW.
Optional second arg NORECORD non-nil means do not put this buffer at the
front of the buffer list and do not make this window the most recently
DEFUN ("window-combination-limit", Fwindow_combination_limit, Swindow_combination_limit, 1, 1, 0,
doc: /* Return combination limit of window WINDOW.
-WINDOW must be a valid window and defaults to the selected one.
-If the return value is nil, child windows of WINDOW can be recombined with
-WINDOW's siblings. A return value of t means that child windows of
-WINDOW are never \(re-)combined with WINDOW's siblings. */)
+If the return value is nil, child windows of WINDOW can be recombined
+with WINDOW's siblings. A return value of t means that child windows of
+WINDOW are never \(re-)combined with WINDOW's siblings.
+
+WINDOW must be a valid window. The return value is meaningful for
+internal windows only. */)
(Lisp_Object window)
{
return decode_valid_window (window)->combination_limit;
DEFUN ("set-window-combination-limit", Fset_window_combination_limit, Sset_window_combination_limit, 2, 2, 0,
doc: /* Set combination limit of window WINDOW to LIMIT; return LIMIT.
-WINDOW must be a valid window and defaults to the selected one.
-If LIMIT is nil, child windows of WINDOW can be recombined with
-WINDOW's siblings. LIMIT t means that child windows of WINDOW are
-never \(re-)combined with WINDOW's siblings. Other values are reserved
-for future use. */)
+If LIMIT is nil, child windows of WINDOW can be recombined with WINDOW's
+siblings. LIMIT t means that child windows of WINDOW are never
+\(re-)combined with WINDOW's siblings. Other values are reserved for
+future use.
+
+WINDOW must be a valid window. Setting the combination limit is
+meaningful for internal windows only. */)
(Lisp_Object window, Lisp_Object limit)
{
wset_combination_limit (decode_valid_window (window), limit);
return Qnil;
default:
- abort ();
+ emacs_abort ();
}
}
#endif
if (! NILP (update)
- && ! (! NILP (w->window_end_valid)
- && w->last_modified >= BUF_MODIFF (b)
- && w->last_overlay_modified >= BUF_OVERLAY_MODIFF (b))
+ && (windows_or_buffers_changed || NILP (w->window_end_valid))
&& !noninteractive)
{
struct text_pos startp;
DEFUN ("window-parameter", Fwindow_parameter, Swindow_parameter,
2, 2, 0,
doc: /* Return WINDOW's value for PARAMETER.
-WINDOW must be a valid window and defaults to the selected one. */)
+WINDOW can be any window and defaults to the selected one. */)
(Lisp_Object window, Lisp_Object parameter)
{
Lisp_Object result;
- result = Fassq (parameter, decode_valid_window (window)->window_parameters);
+ result = Fassq (parameter, decode_any_window (window)->window_parameters);
return CDR_SAFE (result);
}
DEFUN ("set-window-parameter", Fset_window_parameter,
Sset_window_parameter, 3, 3, 0,
doc: /* Set WINDOW's value of PARAMETER to VALUE.
-WINDOW must be a valid window and defaults to the selected one.
+WINDOW can be any window and defaults to the selected one.
Return VALUE. */)
(Lisp_Object window, Lisp_Object parameter, Lisp_Object value)
{
- register struct window *w = decode_valid_window (window);
+ register struct window *w = decode_any_window (window);
Lisp_Object old_alist_elt;
old_alist_elt = Fassq (parameter, w->window_parameters);
buf = w->buffer;
b = XBUFFER (buf);
if (b != XMARKER (w->pointm)->buffer)
- abort ();
+ emacs_abort ();
#if 0
if (w == XWINDOW (selected_window)
/* Check for a window that has a killed buffer. */
case CHECK_ALL_WINDOWS:
if (! NILP (w->buffer)
- && NILP (BVAR (XBUFFER (w->buffer), name)))
- abort ();
+ && !BUFFER_LIVE_P (XBUFFER (w->buffer)))
+ emacs_abort ();
break;
case WINDOW_LOOP_UNUSED:
}
}
- BLOCK_INPUT;
+ block_input ();
if (!FRAME_INITIAL_P (f))
{
Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
}
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
run_window_configuration_change_hook (f);
/* Use the right buffer. Matters when running the local hooks. */
if (current_buffer != XBUFFER (Fwindow_buffer (Qnil)))
{
- record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+ record_unwind_current_buffer ();
Fset_buffer (Fwindow_buffer (Qnil));
}
because that might itself be a local variable. */
if (window_initialized)
{
- record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+ record_unwind_current_buffer ();
Fset_buffer (buffer);
}
XSETWINDOW (window, w);
buffer = Fget_buffer (buffer_or_name);
CHECK_BUFFER (buffer);
- if (NILP (BVAR (XBUFFER (buffer), name)))
+ if (!BUFFER_LIVE_P (XBUFFER (buffer)))
error ("Attempt to display deleted buffer");
tem = w->buffer;
if (STRINGP (object))
object = Fget_buffer (object);
- if (BUFFERP (object) && !NILP (BVAR (XBUFFER (object), name)))
+ if (BUFFERP (object) && BUFFER_LIVE_P (XBUFFER (object)))
{
/* Walk all windows looking for buffer, and force update
of each of those windows. */
return Qnil;
}
-
+/* Obsolete since 24.3. */
void
temp_output_buffer_show (register Lisp_Object buf)
{
}
}
}
-
-DEFUN ("internal-temp-output-buffer-show",
- Ftemp_output_buffer_show, Stemp_output_buffer_show,
- 1, 1, 0,
- doc: /* Internal function for `with-output-to-temp-buffer'. */)
- (Lisp_Object buf)
-{
- temp_output_buffer_show (buf);
- return Qnil;
-}
\f
/* Make new window, have it replace WINDOW in window-tree, and make
WINDOW its only vertical child (HORFLAG 1 means make WINDOW its only
wset_vertical_scroll_bar_type (w, Qt);
wset_window_end_pos (w, make_number (0));
wset_window_end_vpos (w, make_number (0));
+ /* These Lisp fields are marked specially so they're not set to nil by
+ allocate_window. */
+ wset_prev_buffers (w, Qnil);
+ wset_next_buffers (w, Qnil);
/* Initialize non-Lisp data. Note that allocate_window zeroes out all
non-Lisp data, so do it only for slots which should not be zero. */
(horflag ? r->total_cols : r->total_lines)))
return Qnil;
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (r, horflag);
windows_or_buffers_changed++;
FRAME_WINDOW_SIZES_CHANGED (f) = 1;
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
run_window_configuration_change_hook (f);
(m, make_number (XINT (r->top_line) + XINT (r->total_lines)));
}
}
+
+ windows_or_buffers_changed++;
}
We do that if either `window-combination-limit' is t, or OLD has no
parent, or OLD is ortho-combined. */
combination_limit =
- !NILP (Vwindow_combination_limit)
+ EQ (Vwindow_combination_limit, Qt)
|| NILP (o->parent)
|| NILP (horflag
? (XWINDOW (o->parent)->hchild)
make_parent_window (old, horflag);
p = XWINDOW (o->parent);
- /* Store value of `window-combination-limit' in new parent's
- combination_limit slot. */
- wset_combination_limit (p, Vwindow_combination_limit);
+ if (EQ (Vwindow_combination_limit, Qt))
+ /* Store t in the new parent's combination_limit slot to avoid
+ that its children get merged into another window. */
+ wset_combination_limit (p, Qt);
/* These get applied below. */
wset_new_total (p, horflag ? o->total_cols : o->total_lines);
wset_new_normal (p, new_normal);
wset_new_total (n, total_size);
wset_new_normal (n, normal_size);
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (p, horflag);
adjust_glyphs (f);
/* Set buffer of NEW to buffer of reference window. Don't run
any hooks. */
set_window_buffer (new, r->buffer, 0, 1);
- UNBLOCK_INPUT;
+ unblock_input ();
/* Maybe we should run the scroll functions in Elisp (which already
runs the configuration change hook). */
{
/* Block input. */
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (p, horflag);
/* If this window is referred to by the dpyinfo's mouse
else
fset_selected_window (f, new_selected_window);
- UNBLOCK_INPUT;
+ unblock_input ();
/* Now look whether `get-mru-window' gets us something. */
mru_window = call1 (Qget_mru_window, frame);
fset_selected_window (f, new_selected_window);
}
else
- UNBLOCK_INPUT;
+ unblock_input ();
/* Must be run by the caller:
run_window_configuration_change_hook (f); */
root, make_number (- delta));
if (INTEGERP (value) && window_resize_check (r, 0))
{
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (r, 0);
/* Grow the mini-window. */
w->last_modified = 0;
w->last_overlay_modified = 0;
+ windows_or_buffers_changed++;
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
}
}
root, make_number (size - 1));
if (INTEGERP (value) && window_resize_check (r, 0))
{
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (r, 0);
/* Shrink the mini-window. */
w->last_modified = 0;
w->last_overlay_modified = 0;
+ windows_or_buffers_changed++;
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
}
/* If the above failed for whatever strange reason we must make a
one window frame here. The same routine will be needed when
&& XINT (w->new_total) > 0
&& height == XINT (r->new_total) + XINT (w->new_total))
{
- BLOCK_INPUT;
+ block_input ();
window_resize_apply (r, 0);
wset_total_lines (w, w->new_total);
windows_or_buffers_changed++;
FRAME_WINDOW_SIZES_CHANGED (f) = 1;
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
run_window_configuration_change_hook (f);
return Qt;
struct Lisp_Vector *saved_windows;
Lisp_Object new_current_buffer;
Lisp_Object frame;
- Lisp_Object auto_buffer_name;
FRAME_PTR f;
ptrdiff_t old_point = -1;
saved_windows = XVECTOR (data->saved_windows);
new_current_buffer = data->current_buffer;
- if (NILP (BVAR (XBUFFER (new_current_buffer), name)))
+ if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer)))
new_current_buffer = Qnil;
else
{
int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f);
int previous_frame_tool_bar_lines = FRAME_TOOL_BAR_LINES (f);
+ /* Don't do this within the main loop below: This may call Lisp
+ code and is thus potentially unsafe while input is blocked. */
+ for (k = 0; k < saved_windows->header.size; k++)
+ {
+ p = SAVED_WINDOW_N (saved_windows, k);
+ window = p->window;
+ w = XWINDOW (window);
+ if (!NILP (w->buffer)
+ && !EQ (w->buffer, p->buffer)
+ && BUFFER_LIVE_P (XBUFFER (p->buffer)))
+ /* If a window we restore gets another buffer, record the
+ window's old buffer. */
+ call1 (Qrecord_window_buffer, window);
+ }
+
/* The mouse highlighting code could get screwed up
if it runs during this. */
- BLOCK_INPUT;
+ block_input ();
if (data->frame_lines != previous_frame_lines
|| data->frame_cols != previous_frame_cols)
if (NILP (p->buffer))
/* An internal window. */
wset_buffer (w, p->buffer);
- else if (!NILP (BVAR (XBUFFER (p->buffer), name)))
+ else if (BUFFER_LIVE_P (XBUFFER (p->buffer)))
/* If saved buffer is alive, install it. */
{
wset_buffer (w, p->buffer);
Fgoto_char (w->pointm);
}
else if (!NILP (w->buffer)
- && !NILP (BVAR (XBUFFER (w->buffer), name)))
+ && BUFFER_LIVE_P (XBUFFER (w->buffer)))
/* Keep window's old buffer; make sure the markers are
real. */
{
BUF_PT_BYTE (XBUFFER (w->buffer)));
w->start_at_line_beg = 1;
}
- else if (STRINGP (auto_buffer_name =
- Fwindow_parameter (window, Qauto_buffer_name))
- && SCHARS (auto_buffer_name) != 0
- && (wset_buffer (w, Fget_buffer_create (auto_buffer_name)),
- !NILP (w->buffer)))
- {
- set_marker_restricted (w->start,
- make_number (0), w->buffer);
- set_marker_restricted (w->pointm,
- make_number (0), w->buffer);
- w->start_at_line_beg = 1;
- }
else
/* Window has no live buffer, get one. */
{
}
adjust_glyphs (f);
- UNBLOCK_INPUT;
+ unblock_input ();
/* Scan dead buffer windows. */
for (; CONSP (dead_windows); dead_windows = XCDR (dead_windows))
(Lisp_Object window, Lisp_Object pixels_p)
{
Lisp_Object result;
- struct frame *f;
- struct window *w;
-
- if (NILP (window))
- window = selected_window;
- else
- CHECK_WINDOW (window);
- w = XWINDOW (window);
- f = XFRAME (w->frame);
+ struct window *w = decode_live_window (window);
+ struct frame *f = XFRAME (w->frame);
if (FRAME_WINDOW_P (f))
result = (NILP (pixels_p)
If PIXELS-P is non-nil, the return value is VSCROLL. */)
(Lisp_Object window, Lisp_Object vscroll, Lisp_Object pixels_p)
{
- struct window *w;
- struct frame *f;
+ struct window *w = decode_live_window (window);
+ struct frame *f = XFRAME (w->frame);
- if (NILP (window))
- window = selected_window;
- else
- CHECK_WINDOW (window);
CHECK_NUMBER_OR_FLOAT (vscroll);
- w = XWINDOW (window);
- f = XFRAME (w->frame);
-
if (FRAME_WINDOW_P (f))
{
int old_dy = w->vscroll;
/* Return 1 if window configurations CONFIGURATION1 and CONFIGURATION2
describe the same state of affairs. This is used by Fequal.
- ignore_positions non-zero means ignore non-matching scroll positions
+ IGNORE_POSITIONS means ignore non-matching scroll positions
and the like.
This ignores a couple of things like the dedication status of
window, combination_limit and the like. This might have to be
fixed. */
-int
-compare_window_configurations (Lisp_Object configuration1, Lisp_Object configuration2, int ignore_positions)
+bool
+compare_window_configurations (Lisp_Object configuration1,
+ Lisp_Object configuration2,
+ bool ignore_positions)
{
register struct save_window_data *d1, *d2;
struct Lisp_Vector *sws1, *sws2;
DEFSYM (Qreplace_buffer_in_windows, "replace-buffer-in-windows");
DEFSYM (Qrecord_window_buffer, "record-window-buffer");
DEFSYM (Qget_mru_window, "get-mru-window");
+ DEFSYM (Qwindow_size, "window-size");
DEFSYM (Qtemp_buffer_show_hook, "temp-buffer-show-hook");
DEFSYM (Qabove, "above");
DEFSYM (Qbelow, "below");
- DEFSYM (Qauto_buffer_name, "auto-buffer-name");
DEFSYM (Qclone_of, "clone-of");
staticpro (&Vwindow_list);
Vwindow_combination_resize = Qnil;
DEFVAR_LISP ("window-combination-limit", Vwindow_combination_limit,
- doc: /* If t, splitting a window makes a new parent window.
-If this variable is nil, splitting a window will create a new parent
-window only if the window has no parent window or the window shall
-become a combination orthogonal to the one it is part of.
+ doc: /* If non-nil, splitting a window makes a new parent window.
+The following values are recognized:
-If this variable is t, splitting a window always creates a new parent
-window. If all splits behave this way, each frame's window tree is a
-binary tree and every window but the frame's root window has exactly one
-sibling.
+nil means splitting a window will create a new parent window only if the
+ window has no parent window or the window shall become part of a
+ combination orthogonal to the one it is part of.
-Other values are reserved for future use.
+`window-size' means that splitting a window for displaying a buffer
+ makes a new parent window provided `display-buffer' is supposed to
+ explicitly set the window's size due to the presence of a
+ `window-height' or `window-width' entry in the alist used by
+ `display-buffer'. Otherwise, this value is handled like nil.
+
+`temp-buffer' means that splitting a window for displaying a temporary
+ buffer always makes a new parent window. Otherwise, this value is
+ handled like nil.
+
+`display-buffer' means that splitting a window for displaying a buffer
+ always makes a new parent window. Since temporary buffers are
+ displayed by the function `display-buffer', this value is stronger
+ than `temp-buffer'. Splitting a window for other purpose makes a
+ new parent window only if needed.
+
+t means that splitting a window always creates a new parent window. If
+ all splits behave this way, each frame's window tree is a binary
+ tree and every window but the frame's root window has exactly one
+ sibling.
-The value of this variable is also assigned to the combination limit of
-the new parent window. The combination limit of a window can be
-retrieved via the function `window-combination-limit' and altered by the
-function `set-window-combination-limit'. */);
- Vwindow_combination_limit = Qnil;
+Other values are reserved for future use. */);
+ Vwindow_combination_limit = Qwindow_size;
DEFVAR_LISP ("window-persistent-parameters", Vwindow_persistent_parameters,
doc: /* Alist of persistent window parameters.
defsubr (&Srun_window_configuration_change_hook);
defsubr (&Sselect_window);
defsubr (&Sforce_window_update);
- defsubr (&Stemp_output_buffer_show);
defsubr (&Ssplit_window_internal);
defsubr (&Sscroll_up);
defsubr (&Sscroll_down);