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gdk: Implement gdk_window_get_source_drawable() using Cairo

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Do we have a test case for this?
This commit is contained in:
Benjamin Otte 2010-07-19 23:31:24 +02:00
parent 46206f8bb8
commit f1620b5ce1
1 changed files with 25 additions and 24 deletions
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49
gdk/gdkwindow.c
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@ -3917,11 +3917,11 @@ gdk_window_get_composite_drawable (GdkDrawable *drawable,
GSList *list;
GdkPixmap *tmp_pixmap;
GdkRectangle rect;
GdkGC *tmp_gc;
gboolean overlap_buffer;
GdkDrawable *source;
GdkWindowObject *impl_window;
GdkWindowPaint *implicit_paint;
cairo_t *cr;
*composite_x_offset = -private->abs_x;
*composite_y_offset = -private->abs_y;
@ -3985,31 +3985,30 @@ gdk_window_get_composite_drawable (GdkDrawable *drawable,
return g_object_ref (_gdk_drawable_get_source_drawable (drawable));
tmp_pixmap = gdk_pixmap_new (drawable, width, height, -1);
tmp_gc = _gdk_drawable_get_scratch_gc (tmp_pixmap, FALSE);
cr = gdk_cairo_create (tmp_pixmap);
source = _gdk_drawable_get_source_drawable (drawable);
/* Copy the current window contents */
gdk_draw_drawable (tmp_pixmap,
tmp_gc,
GDK_WINDOW_OBJECT (source)->impl,
x - *composite_x_offset,
y - *composite_y_offset,
0, 0,
width, height);
gdk_cairo_set_source_pixmap (cr, source,
x - *composite_x_offset,
y - *composite_y_offset);
cairo_paint (cr);
/* paint the backing stores */
if (implicit_paint)
{
GdkWindowPaint *paint = list->data;
gdk_gc_set_clip_region (tmp_gc, paint->region);
gdk_gc_set_clip_origin (tmp_gc, -x - paint->x_offset, -y - paint->y_offset);
cairo_save (cr);
gdk_draw_drawable (tmp_pixmap, tmp_gc, paint->pixmap,
x - paint->x_offset,
y - paint->y_offset,
0, 0, width, height);
gdk_cairo_set_source_pixmap (cr, paint->pixmap,
x - paint->x_offset,
y - paint->y_offset);
cairo_translate (cr, -x - paint->x_offset, -y - paint->y_offset);
gdk_cairo_region (cr, paint->region);
cairo_fill (cr);
cairo_restore (cr);
}
for (list = private->paint_stack; list != NULL; list = list->next)
@ -4019,17 +4018,19 @@ gdk_window_get_composite_drawable (GdkDrawable *drawable,
if (paint->uses_implicit)
continue; /* We already copied this above */
gdk_gc_set_clip_region (tmp_gc, paint->region);
gdk_gc_set_clip_origin (tmp_gc, -x, -y);
cairo_save (cr);
gdk_draw_drawable (tmp_pixmap, tmp_gc, paint->pixmap,
x - paint->x_offset,
y - paint->y_offset,
0, 0, width, height);
gdk_cairo_set_source_pixmap (cr, paint->pixmap,
x - paint->x_offset,
y - paint->y_offset);
cairo_translate (cr, -x, -y);
gdk_cairo_region (cr, paint->region);
cairo_fill (cr);
cairo_restore (cr);
}
/* Reset clip region of the cached GdkGC */
gdk_gc_set_clip_region (tmp_gc, NULL);
cairo_destroy (cr);
/* Set these to location of tmp_pixmap within the window */
*composite_x_offset = x;