6a2143ab31
Some widgets have very expensive drawing paths. So caching the content can be useful even when not scrolling. This can help speed up widgets that are part of animation sequences and thereby go through spurious expose events. https://bugzilla.gnome.org/show_bug.cgi?id=751082
62 lines
3.0 KiB
C
62 lines
3.0 KiB
C
/*
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* Copyright © 2013 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Alexander Larsson <alexl@gnome.org>
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*/
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#ifndef __GTK_PIXEL_CACHE_PRIVATE_H__
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#define __GTK_PIXEL_CACHE_PRIVATE_H__
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#include <glib-object.h>
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#include <gtkwidget.h>
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G_BEGIN_DECLS
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typedef struct _GtkPixelCache GtkPixelCache;
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typedef void (*GtkPixelCacheDrawFunc) (cairo_t *cr,
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gpointer user_data);
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GtkPixelCache *_gtk_pixel_cache_new (void);
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void _gtk_pixel_cache_free (GtkPixelCache *cache);
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void _gtk_pixel_cache_map (GtkPixelCache *cache);
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void _gtk_pixel_cache_unmap (GtkPixelCache *cache);
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void _gtk_pixel_cache_invalidate (GtkPixelCache *cache,
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cairo_region_t *region);
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void _gtk_pixel_cache_draw (GtkPixelCache *cache,
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cairo_t *cr,
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GdkWindow *window,
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cairo_rectangle_int_t *view_rect,
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cairo_rectangle_int_t *canvas_rect,
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GtkPixelCacheDrawFunc draw,
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gpointer user_data);
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void _gtk_pixel_cache_get_extra_size (GtkPixelCache *cache,
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guint *extra_width,
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guint *extra_height);
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void _gtk_pixel_cache_set_extra_size (GtkPixelCache *cache,
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guint extra_width,
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guint extra_height);
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void _gtk_pixel_cache_set_content (GtkPixelCache *cache,
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cairo_content_t content);
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gboolean _gtk_pixel_cache_get_always_cache (GtkPixelCache *cache);
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void _gtk_pixel_cache_set_always_cache (GtkPixelCache *cache,
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gboolean always_cache);
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G_END_DECLS
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#endif /* __GTK_PIXEL_CACHE_PRIVATE_H__ */
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