Mercurial > hg > xemacs-beta
comparison src/balloon-x.c @ 428:3ecd8885ac67 r21-2-22
Import from CVS: tag r21-2-22
author | cvs |
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date | Mon, 13 Aug 2007 11:28:15 +0200 |
parents | |
children | 8de8e3f6228a |
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1 /* | |
2 Copyright (c) 1997 Douglas Keller | |
3 | |
4 This file is part of XEmacs. | |
5 | |
6 XEmacs is free software; you can redistribute it and/or modify it | |
7 under the terms of the GNU General Public License as published by the | |
8 Free Software Foundation; either version 2, or (at your option) any | |
9 later version. | |
10 | |
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 for more details. | |
15 | |
16 You should have received a copy of the GNU General Public License | |
17 along with XEmacs; see the file COPYING. If not, write to | |
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 Boston, MA 02111-1307, USA. */ | |
20 | |
21 /* Synched up with: Not in FSF. */ | |
22 | |
23 | |
24 #include <config.h> | |
25 #include "lisp.h" | |
26 | |
27 #include "device.h" | |
28 #include "console-x.h" | |
29 | |
30 #include "balloon_help.h" | |
31 | |
32 /* ### start of hack */ | |
33 | |
34 static unsigned long | |
35 alloc_color (Display* dpy, CONST char* colorname, int light) | |
36 { | |
37 Colormap cmap = DEVICE_X_COLORMAP (XDEVICE(Vdefault_x_device)); | |
38 unsigned long pixel = 0; | |
39 XColor color; | |
40 | |
41 if (XParseColor(dpy, cmap, colorname, &color) && XAllocColor(dpy, cmap, &color)) | |
42 { | |
43 pixel = color.pixel; | |
44 } | |
45 else | |
46 { | |
47 if (light) | |
48 { | |
49 printf ("Warning: could not allocate color \"%s\", using \"white\"\n", | |
50 colorname); | |
51 pixel = alloc_color (dpy, "white", True); | |
52 } | |
53 else | |
54 { | |
55 printf ("Warning: could not allocate color \"%s\", using \"black\"\n", | |
56 colorname); | |
57 pixel = alloc_color (dpy, "black", True); | |
58 } | |
59 } | |
60 return pixel; | |
61 } | |
62 | |
63 static XFontStruct * | |
64 open_font (Display* dpy, CONST char* font_name) | |
65 { | |
66 XFontStruct* fontStruct = NULL; | |
67 | |
68 fontStruct = XLoadQueryFont (dpy, font_name ? font_name : "fixed"); | |
69 if (fontStruct == NULL) | |
70 { | |
71 printf ("Warning: could not load font \"%s\", using \"fixed\".\n", font_name); | |
72 fontStruct = XLoadQueryFont (dpy, "fixed"); | |
73 assert (fontStruct != NULL); | |
74 } | |
75 return fontStruct; | |
76 } | |
77 | |
78 static void | |
79 init (void) | |
80 { | |
81 static int init_p = 0; | |
82 | |
83 if (!init_p) | |
84 { | |
85 Pixel fg, bg, shine, shadow; | |
86 XFontStruct* font; | |
87 Display *dpy = DEVICE_X_DISPLAY (XDEVICE (Vdefault_x_device)); | |
88 | |
89 fg = alloc_color (dpy, "grey60", 1); | |
90 bg = alloc_color (dpy, "black", 0); | |
91 | |
92 shine = alloc_color (dpy, "grey80", 1); | |
93 shadow = alloc_color (dpy, "grey40", 0); | |
94 | |
95 font = open_font (dpy, "-adobe-helvetica-medium-r-normal--12-*"); | |
96 | |
97 balloon_help_create (dpy, bg, fg, shine, shadow, font); | |
98 init_p = 1; | |
99 } | |
100 } | |
101 | |
102 /* ### end of hack */ | |
103 | |
104 DEFUN ("show-balloon-help", Fshow_balloon_help, 1, 1, 0, /* | |
105 Show balloon help. | |
106 */ | |
107 (string)) | |
108 { | |
109 char *p; | |
110 CHECK_STRING (string); | |
111 | |
112 p = (char *) XSTRING_DATA (string); | |
113 | |
114 init (); | |
115 | |
116 balloon_help_show (p); | |
117 | |
118 return Qnil; | |
119 } | |
120 | |
121 DEFUN ("hide-balloon-help", Fhide_balloon_help, 0, 0, 0, /* | |
122 Hide balloon help. | |
123 */ | |
124 ()) | |
125 { | |
126 init (); | |
127 | |
128 balloon_help_hide (); | |
129 | |
130 return Qnil; | |
131 } | |
132 | |
133 DEFUN ("balloon-help-move-to-pointer", Fballoon_help_move_to_pointer, 0, 0, 0, /* | |
134 Move the balloon help to the place where the pointer currently resides. | |
135 */ | |
136 ()) | |
137 { | |
138 init (); | |
139 | |
140 balloon_help_move_to_pointer (); | |
141 | |
142 return Qnil; | |
143 } | |
144 | |
145 | |
146 | |
147 /************************************************************************/ | |
148 /* initialization */ | |
149 /************************************************************************/ | |
150 | |
151 void | |
152 syms_of_balloon_x (void) | |
153 { | |
154 DEFSUBR (Fshow_balloon_help); | |
155 DEFSUBR (Fhide_balloon_help); | |
156 DEFSUBR (Fballoon_help_move_to_pointer); | |
157 } | |
158 | |
159 void | |
160 vars_of_balloon_x (void) | |
161 { | |
162 Fprovide (intern ("c-balloon-help")); | |
163 } |