/* Interface definitions for display code.
- Copyright (C) 1985, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#ifndef _DISPEXTERN_H_
+#define _DISPEXTERN_H_
/* Nonzero means last display completed and cursor is really at
cursX, cursY. Zero means it was preempted. */
#ifdef HAVE_X_WINDOWS
#include <X11/Xlib.h>
+#endif
+
+#ifdef MSDOS
+#include "msdos.h"
+#endif
+
+#ifdef HAVE_NTGUI
+#include "w32gui.h"
+#endif
+#ifdef HAVE_FACES
struct face
{
/* If this is non-zero, it is a GC we can use without modification
- to represent this face. */
+ to represent this face. Used only for ASCII characters. */
GC gc;
+
+ /* GC used for non-ASCII characters. */
+ GC non_ascii_gc;
+
+ /* Pixel value for foreground color. */
+ EMACS_UINT foreground;
- /* Pixel value for foreground color. */
- int foreground;
-
- /* Pixel value for background color. */
- int background;
+ /* Pixel value for background color. */
+ EMACS_UINT background;
- /* Font used for this face */
- XFontStruct font;
+ /* Font used for this face. If any fontset is set for this face,
+ this points to a `font' slot of the struct `font_info' for an
+ ASCII font of the fontset. In that case, we should not call
+ XFreeFont on it because the font may still be used somewhere
+ else. */
+ XFontStruct *font;
+
+ /* Fontset ID if any fontset is set for this face, else -1. */
+ int fontset;
- /* Background stipple or bitmap used for this face. */
+ /* Background stipple or bitmap used for this face. */
Pixmap stipple;
+
+ /* Pixmap_depth. */
+ unsigned int pixmap_w, pixmap_h;
- /* Whether or not to underline text in this face. */
+ /* Whether or not to underline text in this face. */
char underline;
};
+/* Let's stop using this and get rid of it. */
typedef struct face *FACE;
-#define NORMAL_FACE ((FACE *) 0)
+#define NORMAL_FACE ((struct face *) 0)
#define FACE_HAS_GC(f) ((f)->gc)
#define FACE_GC(f) ((f)->gc)
+#define FACE_NON_ASCII_GC(f) ((f)->non_ascii_gc)
#define FACE_FOREGROUND(f) ((f)->foreground)
#define FACE_BACKGROUND(f) ((f)->background)
#define FACE_FONT(f) ((f)->font)
+#define FACE_FONTSET(f) ((f)->fontset)
#define FACE_STIPPLE(f) ((f)->stipple)
#define FACE_UNDERLINE_P(f) ((f)->underline)
-#else /* Not X */
+#else /* not HAVE_FACES */
typedef int FACE;
#define FACE_HIGHLIGHT(f) ((f) & 0x1)
#define FACE_UNDERLINE(f) ((f) & 0x2)
-#endif /* Not X */
+
+#endif /* not HAVE_FACES */
/* This structure is used for the actual display of text on a frame.
There are two instantiations of it: the glyphs currently displayed,
and the glyphs we desire to display. The latter object is generated
- from buffers being displayed. */
+ from buffers being displayed. */
struct frame_glyphs
{
-#ifdef MULTI_FRAME
- struct frame *frame; /* Frame these glyphs belong to. */
-#endif /* MULTI_FRAME */
+ struct frame *frame; /* Frame these glyphs belong to. */
int height;
int width;
/* highlight[n] != 0 iff line n is highlighted. */
char *highlight;
- /* Buffer offset of this line's first char. */
+ /* Buffer offset of this line's first char.
+ This is not really implemented, and cannot be,
+ and should be deleted. */
int *bufp;
-#ifdef HAVE_X_WINDOWS
- /* Pixel position of top left corner of line. */
+#ifdef HAVE_WINDOW_SYSTEM
+ /* Pixel position of top left corner of line. */
short *top_left_x;
short *top_left_y;
- /* Pixel width of line. */
+ /* Pixel width of line. */
short *pix_width;
- /* Pixel height of line. */
+ /* Pixel height of line. */
short *pix_height;
- /* Largest font ascent on this line. */
+ /* Largest font ascent on this line. */
short *max_ascent;
-#endif /* HAVE_X_WINDOWS */
+#endif /* HAVE_WINDOW_SYSTEM */
+
+ /* Mapping of coordinate pairs to buffer positions.
+ This field holds a vector indexed by row number.
+ Its elements are vectors indexed by column number.
+ Each element of these vectors is a buffer position, 0, or -1.
+
+ For a column where the image of a text character starts,
+ the element value is the buffer position of that character.
+ When a window's screen line starts in mid character,
+ the element for the line's first column (at the window's left margin)
+ is that character's position.
+ For successive columns within a multicolumn character,
+ the element is -1.
+ For the column just beyond the last glyph on a line,
+ the element is the buffer position of the end of the line.
+ For following columns within the same window, the element is 0.
+ For rows past the end of the accessible buffer text,
+ the window's first column has ZV and other columns have 0.
+
+ Mode lines and vertical separator lines have 0.
+
+ The column of a window's left margin
+ always has a positive value (a buffer position), not 0 or -1,
+ for each line in that window's interior. */
+
+ int **charstarts;
+
+ /* This holds all the space in the subvectors of the charstarts field. */
+ int *total_charstarts;
};
-extern void get_display_line ();
-extern Lisp_Object sit_for ();
+extern void redraw_frame P_ ((struct frame *));
+extern void redraw_garbaged_frames P_ ((void));
+extern void free_frame_glyphs P_ ((struct frame *, struct frame_glyphs *));
+extern void remake_frame_glyphs P_ ((struct frame *));
+extern void cancel_line P_ ((int, struct frame *));
+extern void clear_frame_records P_ ((struct frame *));
+extern void init_desired_glyphs P_ ((struct frame *));
+extern void get_display_line P_ ((struct frame *, int, int));
+extern int scroll_frame_lines P_ ((struct frame *, int, int, int, int));
+extern void preserve_other_columns P_ ((struct window *));
+extern void adjust_window_charstarts P_ ((struct window *, int, int));
+extern void verify_charstarts P_ ((struct window *));
+extern void cancel_my_columns P_ ((struct window *));
+extern int direct_output_for_insert P_ ((int));
+extern int direct_output_forward_char P_ ((int));
+extern int update_frame P_ ((struct frame *, int, int));
+extern void quit_error_check P_ ((void));
+extern int scrolling P_ ((struct frame *));
+extern int buffer_posn_from_coords P_ ((struct window *, int, int));
+extern void do_pending_window_change P_ ((void));
+extern void change_frame_size P_ ((struct frame *, int, int, int, int));
+extern void bitch_at_user P_ ((void));
+
+/* Defined in term.c */
+extern void ring_bell P_ ((void));
+extern void set_terminal_modes P_ ((void));
+extern void reset_terminal_modes P_ ((void));
+extern void update_begin P_ ((struct frame *));
+extern void update_end P_ ((struct frame *));
+extern void set_terminal_window P_ ((int));
+extern void set_scroll_region P_ ((int, int));
+extern void turn_off_insert P_ ((void));
+extern void turn_off_highlight P_ ((void));
+extern void background_highlight P_ ((void));
+extern void reassert_line_highlight P_ ((int, int));
+extern void change_line_highlight P_ ((int, int, int));
+extern void cursor_to P_ ((int, int));
+extern void clear_frame P_ ((void));
+extern void clear_end_of_line P_ ((int));
+extern void clear_end_of_line_raw P_ ((int));
+extern void write_glyphs P_ ((GLYPH *, int));
+extern void insert_glyphs P_ ((GLYPH *, int));
+extern void delete_glyphs P_ ((int));
+extern void ins_del_lines P_ ((int, int));
+extern int string_cost P_ ((char *));
+extern int per_line_cost P_ ((char *));
+extern void calculate_costs P_ ((struct frame *));
+extern void term_init P_ ((char *));
+extern void fatal P_ ((/* char *, ... */));
+
+/* Defined in scroll.c */
+extern int scrolling_max_lines_saved P_ ((int, int, int *, int *, int *));
+extern int scroll_cost P_ ((struct frame *, int, int, int));
+extern void do_line_insertion_deletion_costs P_ ((struct frame *, char *,
+ char *, char *, char *,
+ char *, char *, int));
+
+#endif /* not _DISPEXTERN_H_ */