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- /* Common code between client and shell widgets -- Xt only.
- Copyright (C) 1993, 1994 Sun Microsystems, Inc.
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Synched up with: Not in FSF. */
-
- /* Written by Ben Wing, September 1993. */
-
- #ifdef emacs
-
- #include <config.h>
-
- #ifndef EXTERNAL_WIDGET
- ERROR! This ought not be getting compiled if EXTERNAL_WIDGET is undefined
- #endif
-
- void fatal (CONST char *fmt, ...);
- #else /* not emacs */
- static void fatal (char *msg);
- #endif
-
- #include <X11/Intrinsic.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include "extw-Xt.h"
-
- /* Yeah, that's portable! */
- int _XtwaitForSomething(
- Boolean ignoreTimers,
- Boolean ignoreInputs,
- Boolean ignoreEvents,
- Boolean block,
- unsigned long *howlong,
- XtAppContext app
- );
-
- #ifdef DEBUG_WIDGET
-
- static int geom_masks[] = {
- CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode,
- XtCWQueryOnly };
- static char *geom_mask_strings[] = {
- "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth",
- "CWSibling", "CWStackMode", "XtCWQueryOnly" };
- static int stack_modes[] = {
- Below, TopIf, BottomIf, Opposite, XtSMDontChange };
- static char *stack_mode_strings[] = {
- "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" };
-
- static void
- print_geometry_structure(XtWidgetGeometry *xwg)
- {
- int num = sizeof(geom_masks)/sizeof(int);
- int i;
-
- printf (" masks:");
- for (i=0; i<num; i++)
- if (xwg->request_mode & geom_masks[i])
- printf (" %s", geom_mask_strings[i]);
- printf ("\n");
- printf (" x:%d y:%d\n", xwg->x, xwg->y);
- printf (" width:%d height:%d border_width:%d\n", xwg->width,
- xwg->height, xwg->border_width);
- printf (" sibling: %x\n", xwg->sibling);
- printf (" stack_mode: ");
- for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++)
- if (xwg->stack_mode == stack_modes[i]) {
- printf ("%s", stack_mode_strings[i]);
- break;
- }
- printf ("\n");
- }
-
- static void
- print_geometry_result (XtGeometryResult res)
- {
- printf ("result: %s\n",
- res == XtGeometryYes ? "XtGeometryYes" :
- res == XtGeometryNo ? "XtGeometryNo" :
- res == XtGeometryAlmost ? "XtGeometryAlmost" :
- res == XtGeometryDone ? "XtGeometryDone" :
- "unknown");
- }
-
- #endif
-
- #ifndef emacs
-
- static void
- fatal (char *msg)
- {
- fprintf (stderr, "%s", msg);
- exit (1);
- }
-
- #endif
-
- /* put a geometry specification in the specified property on the window
- of the specified widget, and send a notification message to tell the
- client-side widget about this. */
-
- void
- extw_send_geometry_value(Display *display, Window win, Atom property,
- en_extw_notify type, XtWidgetGeometry *xwg,
- long data0)
- {
- if (xwg != NULL)
- XChangeProperty(display, win, property,
- a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace,
- (unsigned char *) xwg, sizeof(*xwg)/sizeof(int));
- extw_send_notify_3(display, win, type, data0, 0, 0);
- }
-
- /* get the geometry specification stored in the specified property of the
- specified widget's window. */
-
- void
- extw_get_geometry_value(Display *display, Window win, Atom property,
- XtWidgetGeometry *xwg)
- {
- Atom dummy;
- int format;
- unsigned long nitems, bytes_after;
- unsigned char *prop;
-
- if (XGetWindowProperty(display, win, property, 0,
- sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY,
- &dummy, &format, &nitems, &bytes_after,
- &prop) != Success)
- goto error;
- if (format != 8*sizeof(int) || bytes_after) {
- XFree((char *) prop);
- goto error;
- }
- *xwg = * (XtWidgetGeometry *) prop;
- return;
-
- error:
- fatal("Unable to retrieve property for widget-geometry");
- #if 0
- XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w),
- "invalidProperty","get_geometry_value",XtCXtToolkitError,
- "Unable to retrieve property for widget-geometry",
- (String *)NULL, (Cardinal *)NULL);
- #endif
- }
-
- typedef struct {
- Widget w;
- unsigned long request_num;
- en_extw_notify type;
- } QueryStruct;
-
- /* check if an event is of the sort we're looking for */
-
- static Bool
- isMine(Display *dpy, XEvent *event, char *arg)
- {
- QueryStruct *q = (QueryStruct *) arg;
- Widget w = q->w;
-
- if ( (dpy != XtDisplay(w)) || (event->xany.window != XtWindow(w)) ) {
- return FALSE;
- }
- if (event->xany.serial >= q->request_num) {
- if (event->type == ClientMessage &&
- event->xclient.message_type == a_EXTW_NOTIFY &&
- event->xclient.data.l[0] == 1 - extw_which_side &&
- event->xclient.data.l[1] == q->type)
- return TRUE;
- }
- return FALSE;
- }
-
- /* wait for a ClientMessage of the specified type from the other widget, or
- time-out. isMine() determines whether an event matches. Culled from
- Shell.c. */
-
- Bool
- extw_wait_for_response(Widget w, XEvent *event, unsigned long request_num,
- en_extw_notify type, unsigned long timeout)
- {
- XtAppContext app = XtWidgetToApplicationContext(w);
- QueryStruct q;
-
- XFlush(XtDisplay(w));
- q.w = w;
- q.request_num = request_num;
- q.type = type;
-
- for(;;) {
- /*
- * look for match event
- */
- if (XCheckIfEvent( XtDisplay(w), event, isMine, (char*)&q))
- return TRUE;
- if (_XtwaitForSomething(TRUE, TRUE, FALSE, TRUE, &timeout, app)
- != -1) continue;
- if (timeout == 0)
- return FALSE;
- }
- }
-