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/*
* Motif Tools Library, Version 3.1
* $Id$
*
* Written by David Flanagan.
* Copyright (c) 1992-2001 by David Flanagan.
* All Rights Reserved. See the file COPYRIGHT for details.
* This is open source software. See the file LICENSE for details.
* There is no warranty for this software. See NO_WARRANTY for details.
*
* $Log$
* Revision 1.1.1.1 2001/07/18 11:06:03 root
* Initial checkin.
*
* Revision 1.2 2001/06/12 16:25:28 andre
* *** empty log message ***
*
*
*/
#include <Xmt/Xmt.h>
#include <X11/IntrinsicP.h>
#include <X11/ShellP.h>
#if NeedFunctionPrototypes
Visual *XmtGetVisual(Widget w)
#else
Visual *XmtGetVisual(w)
Widget w;
#endif
{
while(!XtIsShell(w)) w = XtParent(w);
if (((ShellWidget)w)->shell.visual != (Visual *)CopyFromParent)
return ((ShellWidget)w)->shell.visual;
else
return DefaultVisualOfScreen(XtScreen(w));
}
/*
* A function used by some resource converters
*/
/* ARGSUSED */
#if NeedFunctionPrototypes
void _XmtFetchVisual(Widget w, Cardinal *size, XrmValue *value)
#else
void _XmtFetchVisual(w, size, value)
Widget w;
Cardinal *size;
XrmValue *value;
#endif
{
while(!XtIsShell(w)) w = XtParent(w);
value->size = sizeof(Visual *);
if (((ShellWidget)w)->shell.visual != (Visual *)CopyFromParent)
value->addr = (XPointer) &((ShellWidget)w)->shell.visual;
else
value->addr = (XPointer) &DefaultVisualOfScreen(XtScreen(w));
}
static XtInitProc orig_shell_init_proc;
#if NeedFunctionPrototypes
static void XmtShellVisualInheritancePatch(Widget req, Widget new,
ArgList args, Cardinal *num_args)
#else
static void XmtShellVisualInheritancePatch(req, new, args, num_args)
Widget req, new;
ArgList args;
Cardinal *num_args;
#endif
{
ShellWidget w = (ShellWidget) new;
/* first, call the original init method */
(*orig_shell_init_proc)(req, new, args, num_args);
/*
* then, if visual is still CopyFromParent, then inherit from our
* closest shell ancestor, if we have one.
*/
if ((w->shell.visual == CopyFromParent) && XtParent(w)) {
Widget p;
for(p = XtParent(w); !XtIsShell(p); p = XtParent(p));
w->shell.visual = ((ShellWidget)p)->shell.visual;
}
}
/*
* Call this procedure before XtAppInitialize, or however you
* create your toplevel shell. It will munge the Shell widget class
* so that it handles visual inheritance in the same way it handles
* depth and colormap inheritance. This kind of inheritance is not
* always the desired behavior, but often makes it a lot easier
* to write applications with a non-default visual.
*/
#if NeedFunctionPrototypes
void XmtPatchVisualInheritance(void)
#else
void XmtPatchVisualInheritance()
#endif
{
orig_shell_init_proc = shellClassRec.core_class.initialize;
shellClassRec.core_class.initialize = XmtShellVisualInheritancePatch;
}
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