forked from AuroraMiddleware/gtk
0e2f35ed88
When values are computed, they might depend on various other values and we need to track this so we can update the values when those other values change. This is the first step in making that happen. This patch does not do any dependency tracking at all, instead it uses GTK_CSS_DEPENDS_ON_EVERYTHING as a sort of FIXME.
86 lines
4.3 KiB
C
86 lines
4.3 KiB
C
/*
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* Copyright © 2012 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_CSS_VALUE_PRIVATE_H__
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#define __GTK_CSS_VALUE_PRIVATE_H__
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#include <glib-object.h>
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#include "gtkcsstypesprivate.h"
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#include "gtksymboliccolor.h"
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#include "gtktypes.h"
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G_BEGIN_DECLS
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#define GTK_TYPE_CSS_VALUE (_gtk_css_value_get_type ())
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/* A GtkCssValue is a refcounted immutable value type */
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typedef struct _GtkCssValue GtkCssValue;
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typedef struct _GtkCssValueClass GtkCssValueClass;
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/* using define instead of struct here so compilers get the packing right */
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#define GTK_CSS_VALUE_BASE \
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const GtkCssValueClass *class; \
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volatile gint ref_count;
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struct _GtkCssValueClass {
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void (* free) (GtkCssValue *value);
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GtkCssValue * (* compute) (GtkCssValue *value,
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guint property_id,
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GtkStyleContext *context,
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GtkCssDependencies *dependencies);
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gboolean (* equal) (const GtkCssValue *value1,
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const GtkCssValue *value2);
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GtkCssValue * (* transition) (GtkCssValue *start,
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GtkCssValue *end,
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double progress);
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void (* print) (const GtkCssValue *value,
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GString *string);
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};
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GType _gtk_css_value_get_type (void) G_GNUC_CONST;
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GtkCssValue *_gtk_css_value_alloc (const GtkCssValueClass *klass,
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gsize size);
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#define _gtk_css_value_new(_name, _klass) ((_name *) _gtk_css_value_alloc ((_klass), sizeof (_name)))
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GtkCssValue *_gtk_css_value_ref (GtkCssValue *value);
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void _gtk_css_value_unref (GtkCssValue *value);
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GtkCssValue *_gtk_css_value_compute (GtkCssValue *value,
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guint property_id,
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GtkStyleContext *context,
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GtkCssDependencies *dependencies);
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gboolean _gtk_css_value_equal (const GtkCssValue *value1,
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const GtkCssValue *value2);
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gboolean _gtk_css_value_equal0 (const GtkCssValue *value1,
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const GtkCssValue *value2);
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GtkCssValue *_gtk_css_value_transition (GtkCssValue *start,
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GtkCssValue *end,
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double progress);
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char * _gtk_css_value_to_string (const GtkCssValue *value);
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void _gtk_css_value_print (const GtkCssValue *value,
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GString *string);
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G_END_DECLS
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#endif /* __GTK_CSS_VALUE_PRIVATE_H__ */
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