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Keep track of when we have a clip mask set for the GC, and when we unset

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Wed Jun  4 19:24:28 2003  Owen Taylor  <otaylor@redhat.com>

        * gdk/x11/gdkgc-x11.c gdk/x11/gdkprivate-x11.h: Keep
        track of when we have a clip mask set for the GC,
        and when we unset it, or switch to a clip region,
        immediately call XSetClipMask (..., None) to avoid
        Xlib caching stale data. (#111806)

        * gtk/gtktextdisplay.c: Don't set a clip mask
        when drawing alpha pixmaps; it isn't necessary any more.
        (#111806)
This commit is contained in:
Owen Taylor
2003-06-04 23:26:52 +00:00
committed by Owen Taylor
parent c1ccc9b9a4
commit 76fc08a3fc
8 changed files with 95 additions and 39 deletions
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40
gdk/x11/gdkgc-x11.c
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@ -140,6 +140,7 @@ _gdk_x11_gc_new (GdkDrawable *drawable,
private = GDK_GC_X11 (gc);
private->dirty_mask = 0;
private->have_clip_mask = FALSE;
private->clip_region = NULL;
private->screen = GDK_DRAWABLE_IMPL_X11 (drawable)->screen;
@ -158,7 +159,10 @@ _gdk_x11_gc_new (GdkDrawable *drawable,
if (values_mask & GDK_GC_FOREGROUND)
private->fg_pixel = values->foreground.pixel;
if ((values_mask & GDK_GC_CLIP_MASK) && values->clip_mask)
private->have_clip_mask = TRUE;
xvalues.function = GXcopy;
xvalues.fill_style = FillSolid;
xvalues.arc_mode = ArcPieSlice;
@ -394,6 +398,8 @@ gdk_x11_gc_set_values (GdkGC *gc,
gdk_region_destroy (x11_gc->clip_region);
x11_gc->clip_region = NULL;
}
x11_gc->have_clip_mask = values->clip_mask != NULL;
}
if (values_mask & GDK_GC_FOREGROUND)
@ -643,20 +649,30 @@ gdk_gc_set_clip_rectangle (GdkGC *gc,
GdkRectangle *rectangle)
{
GdkGCX11 *x11_gc;
gboolean had_region = FALSE;
g_return_if_fail (GDK_IS_GC (gc));
x11_gc = GDK_GC_X11 (gc);
if (x11_gc->clip_region)
gdk_region_destroy (x11_gc->clip_region);
{
had_region = TRUE;
gdk_region_destroy (x11_gc->clip_region);
}
if (rectangle)
x11_gc->clip_region = gdk_region_rectangle (rectangle);
else
x11_gc->clip_region = NULL;
/* Unset immediately, to make sure Xlib doesn't keep the
* XID of an old clip mask cached
*/
if ((had_region && !rectangle) || x11_gc->have_clip_mask)
{
x11_gc->clip_region = NULL;
XSetClipMask (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), None);
x11_gc->have_clip_mask = FALSE;
}
gc->clip_x_origin = 0;
@ -670,22 +686,32 @@ gdk_gc_set_clip_region (GdkGC *gc,
GdkRegion *region)
{
GdkGCX11 *x11_gc;
gboolean had_region = FALSE;
g_return_if_fail (GDK_IS_GC (gc));
x11_gc = GDK_GC_X11 (gc);
if (x11_gc->clip_region)
gdk_region_destroy (x11_gc->clip_region);
{
had_region = TRUE;
gdk_region_destroy (x11_gc->clip_region);
}
if (region)
x11_gc->clip_region = gdk_region_copy (region);
else
x11_gc->clip_region = NULL;
/* Unset immediately, to make sure Xlib doesn't keep the
* XID of an old clip mask cached
*/
if ((had_region && !region) || x11_gc->have_clip_mask)
{
x11_gc->clip_region = NULL;
XSetClipMask (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), None);
x11_gc->have_clip_mask = FALSE;
}
gc->clip_x_origin = 0;
gc->clip_y_origin = 0;