Commit | Line | Data |
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c22ca93b | 1 | /* Interface definitions for display code. |
c6c5df7f | 2 | Copyright (C) 1985, 1993 Free Software Foundation, Inc. |
c22ca93b JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
e5d77022 | 8 | the Free Software Foundation; either version 2, or (at your option) |
c22ca93b JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
c22ca93b JB |
20 | /* Nonzero means last display completed and cursor is really at |
21 | cursX, cursY. Zero means it was preempted. */ | |
22 | extern int display_completed; | |
23 | ||
24 | #ifdef HAVE_X_WINDOWS | |
9f2279ad JA |
25 | #include <X11/Xlib.h> |
26 | ||
27 | struct face | |
28 | { | |
29 | /* If this is non-zero, it is a GC we can use without modification | |
42087301 | 30 | to represent this face. */ |
9f2279ad | 31 | GC gc; |
88fd275e JB |
32 | |
33 | /* If we have ever called get_cached_face on this face structure, | |
34 | here is the index in face_vector of the face it returned. It | |
35 | might not be valid any more, but it's a good place to start | |
36 | looking; get_cached_face tries to use this to avoid searching | |
37 | all of face_vector. */ | |
38 | int cached_index; | |
9f2279ad | 39 | |
42087301 | 40 | /* Pixel value for foreground color. */ |
9f2279ad JA |
41 | int foreground; |
42 | ||
42087301 | 43 | /* Pixel value for background color. */ |
9f2279ad JA |
44 | int background; |
45 | ||
42087301 RS |
46 | /* Font used for this face. */ |
47 | XFontStruct *font; | |
9f2279ad | 48 | |
42087301 | 49 | /* Background stipple or bitmap used for this face. */ |
9f2279ad | 50 | Pixmap stipple; |
42087301 RS |
51 | |
52 | /* Pixmap_depth. */ | |
53 | unsigned int pixmap_w, pixmap_h; | |
9f2279ad | 54 | |
42087301 | 55 | /* Whether or not to underline text in this face. */ |
9f2279ad | 56 | char underline; |
e5c8436a JB |
57 | |
58 | /* Does this face own its resources? (color, font, etcetera) | |
59 | If this is a face which we computed by combining other faces, | |
60 | then this is true, and we shouldn't free any of the resources | |
61 | it refers to; the faces from which it was constructed own it. | |
62 | On the other hand, if this is a face the user created and | |
63 | filled in directly, then this is false, and we should free the | |
64 | resources when we free it. */ | |
65 | char copy; | |
9f2279ad JA |
66 | }; |
67 | ||
42087301 | 68 | /* Let's stop using this and get rid of it. */ |
9f2279ad JA |
69 | typedef struct face *FACE; |
70 | ||
42087301 | 71 | #define NORMAL_FACE ((struct face *) 0) |
9f2279ad JA |
72 | |
73 | #define FACE_HAS_GC(f) ((f)->gc) | |
74 | #define FACE_GC(f) ((f)->gc) | |
75 | #define FACE_FOREGROUND(f) ((f)->foreground) | |
76 | #define FACE_BACKGROUND(f) ((f)->background) | |
77 | #define FACE_FONT(f) ((f)->font) | |
78 | #define FACE_STIPPLE(f) ((f)->stipple) | |
79 | #define FACE_UNDERLINE_P(f) ((f)->underline) | |
80 | ||
81 | #else /* Not X */ | |
82 | ||
83 | typedef int FACE; | |
84 | ||
85 | #define NORMAL_FACE 0x0 | |
86 | #define HIGHLIGHT_FACE 0x1 | |
87 | #define UNDERLINE_FACE 0x2 | |
88 | #define HIGHLIGHT_UNDERLINE_FACE 0x3 | |
89 | ||
90 | #define FACE_HIGHLIGHT(f) ((f) & 0x1) | |
91 | #define FACE_UNDERLINE(f) ((f) & 0x2) | |
92 | #endif /* Not X */ | |
93 | ||
c22ca93b | 94 | |
502b9b64 | 95 | /* This structure is used for the actual display of text on a frame. |
c22ca93b JB |
96 | |
97 | There are two instantiations of it: the glyphs currently displayed, | |
98 | and the glyphs we desire to display. The latter object is generated | |
42087301 | 99 | from buffers being displayed. */ |
c22ca93b | 100 | |
502b9b64 | 101 | struct frame_glyphs |
c22ca93b | 102 | { |
502b9b64 | 103 | #ifdef MULTI_FRAME |
42087301 | 104 | struct frame *frame; /* Frame these glyphs belong to. */ |
502b9b64 | 105 | #endif /* MULTI_FRAME */ |
c22ca93b JB |
106 | int height; |
107 | int width; | |
108 | ||
502b9b64 | 109 | /* Contents of the frame. |
265a9e55 JB |
110 | glyphs[V][H] is the glyph at position V, H. |
111 | Note that glyphs[V][-1], | |
112 | glyphs[V][used[V]], | |
502b9b64 | 113 | and glyphs[V][frame_width] are always '\0'. */ |
c22ca93b JB |
114 | GLYPH **glyphs; |
115 | /* long vector from which the strings in `glyphs' are taken. */ | |
116 | GLYPH *total_contents; | |
117 | ||
502b9b64 JB |
118 | /* When representing a desired frame, |
119 | enable[n] == 0 means that line n is same as current frame. | |
8f607ef0 | 120 | Between updates, all lines should be disabled. |
502b9b64 | 121 | When representing current frame contents, |
265a9e55 JB |
122 | enable[n] == 0 means that line n is blank. */ |
123 | char *enable; | |
124 | ||
125 | /* Everything on line n after column used[n] is considered blank. */ | |
126 | int *used; | |
127 | ||
c22ca93b JB |
128 | /* highlight[n] != 0 iff line n is highlighted. */ |
129 | char *highlight; | |
130 | ||
42087301 | 131 | /* Buffer offset of this line's first char. */ |
c22ca93b JB |
132 | int *bufp; |
133 | ||
134 | #ifdef HAVE_X_WINDOWS | |
42087301 | 135 | /* Pixel position of top left corner of line. */ |
9f2279ad | 136 | short *top_left_x; |
c22ca93b | 137 | short *top_left_y; |
c22ca93b | 138 | |
42087301 | 139 | /* Pixel width of line. */ |
9f2279ad JA |
140 | short *pix_width; |
141 | ||
42087301 | 142 | /* Pixel height of line. */ |
9f2279ad | 143 | short *pix_height; |
c22ca93b | 144 | |
42087301 | 145 | /* Largest font ascent on this line. */ |
9f2279ad JA |
146 | short *max_ascent; |
147 | #endif /* HAVE_X_WINDOWS */ | |
148 | }; | |
c22ca93b JB |
149 | |
150 | extern void get_display_line (); | |
bf34ebcf | 151 | extern Lisp_Object sit_for (); |