forked from AuroraMiddleware/gtk
a240808824
The design principles were: - synchronized If multiple style contexts are animating, they should all do an animation step at the same time. - degrades well Even when there's thousands of style contexts all animating at the same time, the animation steps don't starve the CPU. This is achieved by making sure the timeout is really fast. It just sets a bunch of flags. - no hidden bottlenecks Turning animatability on or off on a style context is O(1). So far it is unused.
85 lines
2.8 KiB
C
85 lines
2.8 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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#include "config.h"
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#include "gtkcsstypesprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkstylecontextprivate.h"
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typedef struct _GtkCssChangeTranslation GtkCssChangeTranslation;
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struct _GtkCssChangeTranslation {
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GtkCssChange from;
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GtkCssChange to;
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};
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static GtkCssChange
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gtk_css_change_translate (GtkCssChange match,
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const GtkCssChangeTranslation *translations,
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guint n_translations)
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{
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GtkCssChange result = match;
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guint i;
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for (i = 0; i < n_translations; i++)
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{
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if (match & translations[i].from)
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{
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result &= ~translations[i].from;
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result |= translations[i].to;
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}
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}
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return result;
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}
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GtkCssChange
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_gtk_css_change_for_sibling (GtkCssChange match)
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{
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static const GtkCssChangeTranslation table[] = {
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{ GTK_CSS_CHANGE_CLASS, GTK_CSS_CHANGE_SIBLING_CLASS },
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{ GTK_CSS_CHANGE_NAME, GTK_CSS_CHANGE_SIBLING_NAME },
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{ GTK_CSS_CHANGE_POSITION, GTK_CSS_CHANGE_SIBLING_POSITION },
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{ GTK_CSS_CHANGE_STATE, GTK_CSS_CHANGE_SIBLING_STATE },
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{ GTK_CSS_CHANGE_SOURCE, 0 },
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{ GTK_CSS_CHANGE_ANIMATE, 0 }
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};
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return gtk_css_change_translate (match, table, G_N_ELEMENTS (table));
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}
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GtkCssChange
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_gtk_css_change_for_child (GtkCssChange match)
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{
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static const GtkCssChangeTranslation table[] = {
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{ GTK_CSS_CHANGE_CLASS, GTK_CSS_CHANGE_PARENT_CLASS },
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{ GTK_CSS_CHANGE_NAME, GTK_CSS_CHANGE_PARENT_NAME },
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{ GTK_CSS_CHANGE_POSITION, GTK_CSS_CHANGE_PARENT_POSITION },
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{ GTK_CSS_CHANGE_STATE, GTK_CSS_CHANGE_PARENT_STATE },
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{ GTK_CSS_CHANGE_SIBLING_CLASS, GTK_CSS_CHANGE_PARENT_SIBLING_CLASS },
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{ GTK_CSS_CHANGE_SIBLING_NAME, GTK_CSS_CHANGE_PARENT_SIBLING_NAME },
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{ GTK_CSS_CHANGE_SIBLING_POSITION, GTK_CSS_CHANGE_PARENT_SIBLING_POSITION },
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{ GTK_CSS_CHANGE_SIBLING_STATE, GTK_CSS_CHANGE_PARENT_SIBLING_STATE },
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{ GTK_CSS_CHANGE_SOURCE, 0 },
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{ GTK_CSS_CHANGE_ANIMATE, 0 }
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};
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return gtk_css_change_translate (match, table, G_N_ELEMENTS (table));
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}
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