stk/Tk/xlib/xutil.c

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/*
* xutil.c --
*
* This function contains generic X emulation routines.
*
* Copyright (c) 1995-1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) xutil.c 1.10 96/04/09 23:26:21
*/
#include <stdlib.h>
#include <tk.h>
#ifdef MAC_TCL
# include <Xutil.h>
# include <Xatom.h>
#else
# include <X11/Xutil.h>
# include <X11/Xatom.h>
#endif
/*
*----------------------------------------------------------------------
*
* XInternAtom --
*
* This procedure simulates the XInternAtom function by calling
* Tk_Uid to get a unique id for every atom. This is only a
* partial implementation, since it doesn't work across
* applications.
*
* Results:
* A new Atom.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Atom
XInternAtom(display, atom_name, only_if_exists)
Display* display;
_Xconst char* atom_name;
Bool only_if_exists;
{
static Atom atom = XA_LAST_PREDEFINED;
display->request++;
return ++atom;
}
/*
*----------------------------------------------------------------------
*
* XGetVisualInfo --
*
* Returns information about the specified visual.
*
* Results:
* Returns a newly allocated XVisualInfo structure.
*
* Side effects:
* Allocates storage.
*
*----------------------------------------------------------------------
*/
XVisualInfo *
XGetVisualInfo(display, vinfo_mask, vinfo_template, nitems_return)
Display* display;
long vinfo_mask;
XVisualInfo* vinfo_template;
int* nitems_return;
{
XVisualInfo *info = (XVisualInfo *)ckalloc(sizeof(XVisualInfo));
info->visual = DefaultVisual(display, 0);
info->visualid = info->visual->visualid;
info->screen = 0;
info->depth = info->visual->bits_per_rgb;
info->class = info->visual->class;
info->colormap_size = info->visual->map_entries;
info->bits_per_rgb = info->visual->bits_per_rgb;
info->red_mask = info->visual->red_mask;
info->green_mask = info->visual->green_mask;
info->blue_mask = info->visual->blue_mask;
if (((vinfo_mask & VisualIDMask)
&& (vinfo_template->visualid != info->visualid))
|| ((vinfo_mask & VisualScreenMask)
&& (vinfo_template->screen != info->screen))
|| ((vinfo_mask & VisualDepthMask)
&& (vinfo_template->depth != info->depth))
|| ((vinfo_mask & VisualClassMask)
&& (vinfo_template->class != info->class))
|| ((vinfo_mask & VisualColormapSizeMask)
&& (vinfo_template->colormap_size != info->colormap_size))
|| ((vinfo_mask & VisualBitsPerRGBMask)
&& (vinfo_template->bits_per_rgb != info->bits_per_rgb))
|| ((vinfo_mask & VisualRedMaskMask)
&& (vinfo_template->red_mask != info->red_mask))
|| ((vinfo_mask & VisualGreenMaskMask)
&& (vinfo_template->green_mask != info->green_mask))
|| ((vinfo_mask & VisualBlueMaskMask)
&& (vinfo_template->blue_mask != info->blue_mask))
) {
ckfree((char *) info);
return NULL;
}
*nitems_return = 1;
return info;
}