0
+ − 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
2110
+ − 31 EXTERN_C void fatal (const char *fmt, ...);
0
+ − 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)
2110
+ − 48 EXTERN_C int
+ − 49 _XtWaitForSomething (XtAppContext app, _XtBoolean ignoreEvents,
+ − 50 _XtBoolean ignoreTimers, _XtBoolean ignoreInputs,
+ − 51 _XtBoolean ignoreSignals, _XtBoolean block,
0
+ − 52 #ifdef XTHREADS
2110
+ − 53 _XtBoolean drop_lock,
0
+ − 54 #endif
2110
+ − 55 unsigned long *howlong);
0
+ − 56
+ − 57 # ifndef XTHREADS
2108
+ − 58 # define _XT_WAIT_FOR_SOMETHING(timers,inputs,events,block,howlong,appCtx) \
+ − 59 _XtWaitForSomething (appCtx,events,timers,inputs,0,block,howlong)
0
+ − 60 # else
2108
+ − 61 # define _XT_WAIT_FOR_SOMETHING(timers,inputs,events,block,howlong,appCtx) \
+ − 62 _XtWaitForSomething (appCtx,events,timers,inputs,0,block,1,howlong)
0
+ − 63 # endif
+ − 64 #else
2110
+ − 65 EXTERN_C int
+ − 66 _XtwaitForSomething (Boolean ignoreTimers, Boolean ignoreInputs,
+ − 67 Boolean ignoreEvents, Boolean block,
+ − 68 unsigned long *howlong, XtAppContext app);
2114
+ − 69 # define _XT_WAIT_FOR_SOMETHING(timers,inputs,events,block,howlong,appCtx) \
+ − 70 _XtwaitForSomething (timers,inputs,events,block,howlong,appCtx)
0
+ − 71 #endif
+ − 72
+ − 73 #ifdef DEBUG_WIDGET
+ − 74
+ − 75 static int geom_masks[] = {
+ − 76 CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode,
+ − 77 XtCWQueryOnly };
+ − 78 static char *geom_mask_strings[] = {
+ − 79 "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth",
+ − 80 "CWSibling", "CWStackMode", "XtCWQueryOnly" };
+ − 81 static int stack_modes[] = {
+ − 82 Below, TopIf, BottomIf, Opposite, XtSMDontChange };
+ − 83 static char *stack_mode_strings[] = {
+ − 84 "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" };
+ − 85
+ − 86 static void
+ − 87 print_geometry_structure(XtWidgetGeometry *xwg)
+ − 88 {
+ − 89 int num = sizeof(geom_masks)/sizeof(int);
+ − 90 int i;
2108
+ − 91
0
+ − 92 printf (" masks:");
+ − 93 for (i=0; i<num; i++)
+ − 94 if (xwg->request_mode & geom_masks[i])
+ − 95 printf (" %s", geom_mask_strings[i]);
+ − 96 printf ("\n");
+ − 97 printf (" x:%d y:%d\n", xwg->x, xwg->y);
+ − 98 printf (" width:%d height:%d border_width:%d\n", xwg->width,
+ − 99 xwg->height, xwg->border_width);
+ − 100 printf (" sibling: %x\n", xwg->sibling);
+ − 101 printf (" stack_mode: ");
+ − 102 for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++)
+ − 103 if (xwg->stack_mode == stack_modes[i]) {
+ − 104 printf ("%s", stack_mode_strings[i]);
+ − 105 break;
+ − 106 }
+ − 107 printf ("\n");
+ − 108 }
+ − 109
+ − 110 static void
+ − 111 print_geometry_result (XtGeometryResult res)
+ − 112 {
+ − 113 printf ("result: %s\n",
+ − 114 res == XtGeometryYes ? "XtGeometryYes" :
+ − 115 res == XtGeometryNo ? "XtGeometryNo" :
+ − 116 res == XtGeometryAlmost ? "XtGeometryAlmost" :
+ − 117 res == XtGeometryDone ? "XtGeometryDone" :
+ − 118 "unknown");
+ − 119 }
+ − 120
+ − 121 #endif
+ − 122
+ − 123 #ifndef emacs
+ − 124
+ − 125 static void
+ − 126 fatal (char *msg)
+ − 127 {
+ − 128 fprintf (stderr, "%s", msg);
+ − 129 exit (1);
+ − 130 }
+ − 131
+ − 132 #endif
+ − 133
+ − 134 /* put a geometry specification in the specified property on the window
+ − 135 of the specified widget, and send a notification message to tell the
+ − 136 client-side widget about this. */
+ − 137
+ − 138 void
+ − 139 extw_send_geometry_value(Display *display, Window win, Atom property,
+ − 140 en_extw_notify type, XtWidgetGeometry *xwg,
+ − 141 long data0)
+ − 142 {
+ − 143 if (xwg != NULL)
+ − 144 XChangeProperty(display, win, property,
+ − 145 a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace,
+ − 146 (unsigned char *) xwg, sizeof(*xwg)/sizeof(int));
+ − 147 extw_send_notify_3(display, win, type, data0, 0, 0);
+ − 148 }
+ − 149
+ − 150 /* get the geometry specification stored in the specified property of the
+ − 151 specified widget's window. */
+ − 152
+ − 153 void
+ − 154 extw_get_geometry_value(Display *display, Window win, Atom property,
+ − 155 XtWidgetGeometry *xwg)
+ − 156 {
+ − 157 Atom dummy;
+ − 158 int format;
+ − 159 unsigned long nitems, bytes_after;
+ − 160 unsigned char *prop;
2108
+ − 161
0
+ − 162 if (XGetWindowProperty(display, win, property, 0,
+ − 163 sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY,
+ − 164 &dummy, &format, &nitems, &bytes_after,
+ − 165 &prop) != Success)
+ − 166 goto error;
+ − 167 if (format != 8*sizeof(int) || bytes_after) {
+ − 168 XFree((char *) prop);
+ − 169 goto error;
+ − 170 }
+ − 171 *xwg = * (XtWidgetGeometry *) prop;
+ − 172 return;
+ − 173
+ − 174 error:
+ − 175 fatal("Unable to retrieve property for widget-geometry");
+ − 176 #if 0
+ − 177 XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w),
+ − 178 "invalidProperty","get_geometry_value",XtCXtToolkitError,
+ − 179 "Unable to retrieve property for widget-geometry",
+ − 180 (String *)NULL, (Cardinal *)NULL);
+ − 181 #endif
+ − 182 }
+ − 183
+ − 184 typedef struct {
+ − 185 Widget w;
+ − 186 unsigned long request_num;
+ − 187 en_extw_notify type;
+ − 188 } QueryStruct;
+ − 189
+ − 190 /* check if an event is of the sort we're looking for */
+ − 191
+ − 192 static Bool
+ − 193 isMine(Display *dpy, XEvent *event, char *arg)
+ − 194 {
+ − 195 QueryStruct *q = (QueryStruct *) arg;
+ − 196 Widget w = q->w;
2108
+ − 197
0
+ − 198 if ( (dpy != XtDisplay(w)) || (event->xany.window != XtWindow(w)) ) {
+ − 199 return FALSE;
+ − 200 }
+ − 201 if (event->xany.serial >= q->request_num) {
+ − 202 if (event->type == ClientMessage &&
+ − 203 event->xclient.message_type == a_EXTW_NOTIFY &&
+ − 204 event->xclient.data.l[0] == 1 - extw_which_side &&
1094
+ − 205 (en_extw_notify) event->xclient.data.l[1] == q->type)
0
+ − 206 return TRUE;
+ − 207 }
+ − 208 return FALSE;
+ − 209 }
+ − 210
+ − 211 /* wait for a ClientMessage of the specified type from the other widget, or
+ − 212 time-out. isMine() determines whether an event matches. Culled from
+ − 213 Shell.c. */
+ − 214
+ − 215 Bool
2108
+ − 216 extw_wait_for_response (Widget w, XEvent *event, unsigned long request_num,
+ − 217 en_extw_notify type, unsigned long timeout)
0
+ − 218 {
2108
+ − 219 XtAppContext app = XtWidgetToApplicationContext(w);
+ − 220 QueryStruct q;
+ − 221
+ − 222 XFlush(XtDisplay(w));
+ − 223 q.w = w;
+ − 224 q.request_num = request_num;
+ − 225 q.type = type;
0
+ − 226
2108
+ − 227 for(;;)
+ − 228 {
+ − 229 /*
+ − 230 * look for match event
+ − 231 */
+ − 232 if (XCheckIfEvent (XtDisplay(w), event, isMine, (char*)&q))
+ − 233 return TRUE;
+ − 234 if (_XT_WAIT_FOR_SOMETHING (TRUE, TRUE, FALSE, TRUE, &timeout, app)
+ − 235 != -1)
+ − 236 continue;
+ − 237 if (timeout == 0)
+ − 238 return FALSE;
+ − 239 }
0
+ − 240 }
