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170130f1d9
Add a fast path for parent selector matching that uses a bloom filter to quickly discard selectors that can't possibly match. Keep in mind that we match using a bloom filter, so we might accidentally include too many selectors when hash/bucket collisions occur. That's not a correctness problem though, because we'll do a real check afterwards. The idea for this change is taken from browsers, in particular WebKit.
78 lines
4.1 KiB
C
78 lines
4.1 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
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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 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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#ifndef __GTK_STYLE_PROVIDER_PRIVATE_H__
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#define __GTK_STYLE_PROVIDER_PRIVATE_H__
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#include <glib-object.h>
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#include "gtk/gtkcountingbloomfilterprivate.h"
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#include "gtk/gtkcsskeyframesprivate.h"
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#include "gtk/gtkcsslookupprivate.h"
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#include "gtk/gtkcssnodeprivate.h"
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#include "gtk/gtkcssvalueprivate.h"
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#include <gtk/gtktypes.h>
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G_BEGIN_DECLS
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#define GTK_STYLE_PROVIDER_GET_INTERFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), GTK_TYPE_STYLE_PROVIDER, GtkStyleProviderInterface))
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typedef struct _GtkStyleProviderInterface GtkStyleProviderInterface;
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struct _GtkStyleProviderInterface
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{
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GTypeInterface g_iface;
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GtkCssValue * (* get_color) (GtkStyleProvider *provider,
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const char *name);
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GtkSettings * (* get_settings) (GtkStyleProvider *provider);
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GtkCssKeyframes * (* get_keyframes) (GtkStyleProvider *provider,
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const char *name);
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int (* get_scale) (GtkStyleProvider *provider);
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void (* lookup) (GtkStyleProvider *provider,
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const GtkCountingBloomFilter *filter,
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GtkCssNode *node,
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GtkCssLookup *lookup,
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GtkCssChange *out_change);
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void (* emit_error) (GtkStyleProvider *provider,
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GtkCssSection *section,
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const GError *error);
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/* signal */
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void (* changed) (GtkStyleProvider *provider);
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};
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GtkSettings * gtk_style_provider_get_settings (GtkStyleProvider *provider);
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GtkCssValue * gtk_style_provider_get_color (GtkStyleProvider *provider,
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const char *name);
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GtkCssKeyframes * gtk_style_provider_get_keyframes (GtkStyleProvider *provider,
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const char *name);
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int gtk_style_provider_get_scale (GtkStyleProvider *provider);
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void gtk_style_provider_lookup (GtkStyleProvider *provider,
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const GtkCountingBloomFilter *filter,
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GtkCssNode *node,
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GtkCssLookup *lookup,
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GtkCssChange *out_change);
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void gtk_style_provider_changed (GtkStyleProvider *provider);
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void gtk_style_provider_emit_error (GtkStyleProvider *provider,
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GtkCssSection *section,
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GError *error);
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G_END_DECLS
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#endif /* __GTK_STYLE_PROVIDER_PRIVATE_H__ */
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