forked from AuroraMiddleware/gtk
df7113812b
For now assume that if those flags change for a node, they also changed for all sibling nodes. This is not strictly true but simplifies invalidation. The reason it simplifies invalidation is that when removing or adding a node, we can just invalidate the first node (for NTH_LAST_CHILD) and the new node (for NTH_CHILD) and all the other nodes will be invalidated automatically.
94 lines
3.5 KiB
C
94 lines
3.5 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_FIRST_CHILD, GTK_CSS_CHANGE_SIBLING_FIRST_CHILD },
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{ GTK_CSS_CHANGE_LAST_CHILD, GTK_CSS_CHANGE_SIBLING_LAST_CHILD },
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{ GTK_CSS_CHANGE_NTH_CHILD, GTK_CSS_CHANGE_NTH_CHILD | GTK_CSS_CHANGE_SIBLING_NTH_CHILD },
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{ GTK_CSS_CHANGE_NTH_LAST_CHILD, GTK_CSS_CHANGE_NTH_LAST_CHILD | GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD },
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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_PARENT_STYLE, 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_FIRST_CHILD, GTK_CSS_CHANGE_PARENT_FIRST_CHILD },
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{ GTK_CSS_CHANGE_LAST_CHILD, GTK_CSS_CHANGE_PARENT_LAST_CHILD },
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{ GTK_CSS_CHANGE_NTH_CHILD, GTK_CSS_CHANGE_PARENT_NTH_CHILD },
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{ GTK_CSS_CHANGE_NTH_LAST_CHILD, GTK_CSS_CHANGE_PARENT_NTH_LAST_CHILD },
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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_FIRST_CHILD, GTK_CSS_CHANGE_PARENT_SIBLING_FIRST_CHILD },
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{ GTK_CSS_CHANGE_SIBLING_LAST_CHILD, GTK_CSS_CHANGE_PARENT_SIBLING_LAST_CHILD },
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{ GTK_CSS_CHANGE_SIBLING_NTH_CHILD, GTK_CSS_CHANGE_PARENT_SIBLING_NTH_CHILD },
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{ GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD, GTK_CSS_CHANGE_PARENT_SIBLING_NTH_LAST_CHILD },
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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_PARENT_STYLE, 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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