Mercurial > hg > xemacs-beta
comparison src/extw-Xt.c @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
author | cvs |
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date | Mon, 13 Aug 2007 08:45:50 +0200 |
parents | |
children | 74fd4e045ea6 |
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1 /* Common code between client and shell widgets -- Xt only. | |
2 Copyright (C) 1993, 1994 Sun Microsystems, Inc. | |
3 | |
4 This library is free software; you can redistribute it and/or | |
5 modify it under the terms of the GNU Library General Public | |
6 License as published by the Free Software Foundation; either | |
7 version 2 of the License, or (at your option) any later version. | |
8 | |
9 This library is distributed in the hope that it will be useful, | |
10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 Library General Public License for more details. | |
13 | |
14 You should have received a copy of the GNU Library General Public | |
15 License along with this library; if not, write to | |
16 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 Boston, MA 02111-1307, USA. */ | |
18 | |
19 /* Synched up with: Not in FSF. */ | |
20 | |
21 /* Written by Ben Wing, September 1993. */ | |
22 | |
23 #ifdef emacs | |
24 | |
25 #include <config.h> | |
26 | |
27 #ifndef EXTERNAL_WIDGET | |
28 ERROR! This ought not be getting compiled if EXTERNAL_WIDGET is undefined | |
29 #endif | |
30 | |
31 void fatal (CONST char *fmt, ...); | |
32 #else /* not emacs */ | |
33 static void fatal (char *msg); | |
34 #endif | |
35 | |
36 #include <X11/Intrinsic.h> | |
37 #include <X11/IntrinsicP.h> | |
38 #include <stdlib.h> | |
39 #include <stdio.h> | |
40 #include "extw-Xt.h" | |
41 | |
42 /* Yeah, that's portable! | |
43 | |
44 Why the hell didn't the Xt people just export this function | |
45 for real? */ | |
46 | |
47 #if (XT_REVISION > 5) | |
48 int _XtWaitForSomething( | |
49 XtAppContext app, | |
50 _XtBoolean ignoreEvents, | |
51 _XtBoolean ignoreTimers, | |
52 _XtBoolean ignoreInputs, | |
53 _XtBoolean ignoreSignals, | |
54 _XtBoolean block, | |
55 #ifdef XTHREADS | |
56 _XtBoolean drop_lock, | |
57 #endif | |
58 unsigned long *howlong); | |
59 | |
60 # ifndef XTHREADS | |
61 # define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \ | |
62 _XtWaitForSomething(appCtx,events,timers,inputs,0,block,howlong) | |
63 # else | |
64 # define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \ | |
65 _XtWaitForSomething(appCtx,events,timers,inputs,0,block,1,howlong) | |
66 # endif | |
67 #else | |
68 int _XtwaitForSomething( | |
69 Boolean ignoreTimers, | |
70 Boolean ignoreInputs, | |
71 Boolean ignoreEvents, | |
72 Boolean block, | |
73 unsigned long *howlong, | |
74 XtAppContext app | |
75 ); | |
76 #endif | |
77 | |
78 #ifdef DEBUG_WIDGET | |
79 | |
80 static int geom_masks[] = { | |
81 CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode, | |
82 XtCWQueryOnly }; | |
83 static char *geom_mask_strings[] = { | |
84 "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth", | |
85 "CWSibling", "CWStackMode", "XtCWQueryOnly" }; | |
86 static int stack_modes[] = { | |
87 Below, TopIf, BottomIf, Opposite, XtSMDontChange }; | |
88 static char *stack_mode_strings[] = { | |
89 "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" }; | |
90 | |
91 static void | |
92 print_geometry_structure(XtWidgetGeometry *xwg) | |
93 { | |
94 int num = sizeof(geom_masks)/sizeof(int); | |
95 int i; | |
96 | |
97 printf (" masks:"); | |
98 for (i=0; i<num; i++) | |
99 if (xwg->request_mode & geom_masks[i]) | |
100 printf (" %s", geom_mask_strings[i]); | |
101 printf ("\n"); | |
102 printf (" x:%d y:%d\n", xwg->x, xwg->y); | |
103 printf (" width:%d height:%d border_width:%d\n", xwg->width, | |
104 xwg->height, xwg->border_width); | |
105 printf (" sibling: %x\n", xwg->sibling); | |
106 printf (" stack_mode: "); | |
107 for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++) | |
108 if (xwg->stack_mode == stack_modes[i]) { | |
109 printf ("%s", stack_mode_strings[i]); | |
110 break; | |
111 } | |
112 printf ("\n"); | |
113 } | |
114 | |
115 static void | |
116 print_geometry_result (XtGeometryResult res) | |
117 { | |
118 printf ("result: %s\n", | |
119 res == XtGeometryYes ? "XtGeometryYes" : | |
120 res == XtGeometryNo ? "XtGeometryNo" : | |
121 res == XtGeometryAlmost ? "XtGeometryAlmost" : | |
122 res == XtGeometryDone ? "XtGeometryDone" : | |
123 "unknown"); | |
124 } | |
125 | |
126 #endif | |
127 | |
128 #ifndef emacs | |
129 | |
130 static void | |
131 fatal (char *msg) | |
132 { | |
133 fprintf (stderr, "%s", msg); | |
134 exit (1); | |
135 } | |
136 | |
137 #endif | |
138 | |
139 /* put a geometry specification in the specified property on the window | |
140 of the specified widget, and send a notification message to tell the | |
141 client-side widget about this. */ | |
142 | |
143 void | |
144 extw_send_geometry_value(Display *display, Window win, Atom property, | |
145 en_extw_notify type, XtWidgetGeometry *xwg, | |
146 long data0) | |
147 { | |
148 if (xwg != NULL) | |
149 XChangeProperty(display, win, property, | |
150 a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace, | |
151 (unsigned char *) xwg, sizeof(*xwg)/sizeof(int)); | |
152 extw_send_notify_3(display, win, type, data0, 0, 0); | |
153 } | |
154 | |
155 /* get the geometry specification stored in the specified property of the | |
156 specified widget's window. */ | |
157 | |
158 void | |
159 extw_get_geometry_value(Display *display, Window win, Atom property, | |
160 XtWidgetGeometry *xwg) | |
161 { | |
162 Atom dummy; | |
163 int format; | |
164 unsigned long nitems, bytes_after; | |
165 unsigned char *prop; | |
166 | |
167 if (XGetWindowProperty(display, win, property, 0, | |
168 sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY, | |
169 &dummy, &format, &nitems, &bytes_after, | |
170 &prop) != Success) | |
171 goto error; | |
172 if (format != 8*sizeof(int) || bytes_after) { | |
173 XFree((char *) prop); | |
174 goto error; | |
175 } | |
176 *xwg = * (XtWidgetGeometry *) prop; | |
177 return; | |
178 | |
179 error: | |
180 fatal("Unable to retrieve property for widget-geometry"); | |
181 #if 0 | |
182 XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w), | |
183 "invalidProperty","get_geometry_value",XtCXtToolkitError, | |
184 "Unable to retrieve property for widget-geometry", | |
185 (String *)NULL, (Cardinal *)NULL); | |
186 #endif | |
187 } | |
188 | |
189 typedef struct { | |
190 Widget w; | |
191 unsigned long request_num; | |
192 en_extw_notify type; | |
193 } QueryStruct; | |
194 | |
195 /* check if an event is of the sort we're looking for */ | |
196 | |
197 static Bool | |
198 isMine(Display *dpy, XEvent *event, char *arg) | |
199 { | |
200 QueryStruct *q = (QueryStruct *) arg; | |
201 Widget w = q->w; | |
202 | |
203 if ( (dpy != XtDisplay(w)) || (event->xany.window != XtWindow(w)) ) { | |
204 return FALSE; | |
205 } | |
206 if (event->xany.serial >= q->request_num) { | |
207 if (event->type == ClientMessage && | |
208 event->xclient.message_type == a_EXTW_NOTIFY && | |
209 event->xclient.data.l[0] == 1 - extw_which_side && | |
210 event->xclient.data.l[1] == q->type) | |
211 return TRUE; | |
212 } | |
213 return FALSE; | |
214 } | |
215 | |
216 /* wait for a ClientMessage of the specified type from the other widget, or | |
217 time-out. isMine() determines whether an event matches. Culled from | |
218 Shell.c. */ | |
219 | |
220 Bool | |
221 extw_wait_for_response(Widget w, XEvent *event, unsigned long request_num, | |
222 en_extw_notify type, unsigned long timeout) | |
223 { | |
224 XtAppContext app = XtWidgetToApplicationContext(w); | |
225 QueryStruct q; | |
226 | |
227 XFlush(XtDisplay(w)); | |
228 q.w = w; | |
229 q.request_num = request_num; | |
230 q.type = type; | |
231 | |
232 for(;;) { | |
233 /* | |
234 * look for match event | |
235 */ | |
236 if (XCheckIfEvent( XtDisplay(w), event, isMine, (char*)&q)) | |
237 return TRUE; | |
238 if (_XtwaitForSomething(TRUE, TRUE, FALSE, TRUE, &timeout, app) | |
239 != -1) continue; | |
240 if (timeout == 0) | |
241 return FALSE; | |
242 } | |
243 } |