Learning_GTK4_tree/gtk/gtkcssvalueprivate.h

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2023-12-12 11:36:42 +01:00
/*
* Copyright © 2012 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Alexander Larsson <alexl@gnome.org>
*/
#pragma once
#include <glib-object.h>
#include "gtkcsstypesprivate.h"
#include "gtkstyleprovider.h"
G_BEGIN_DECLS
#define GTK_TYPE_CSS_VALUE (_gtk_css_value_get_type ())
/* A GtkCssValue is a refcounted immutable value type */
typedef struct _GtkCssValue GtkCssValue;
typedef struct _GtkCssValueClass GtkCssValueClass;
/* using define instead of struct here so compilers get the packing right */
#define GTK_CSS_VALUE_BASE \
const GtkCssValueClass *class; \
int ref_count; \
guint is_computed: 1;
struct _GtkCssValueClass {
const char *type_name;
void (* free) (GtkCssValue *value);
GtkCssValue * (* compute) (GtkCssValue *value,
guint property_id,
GtkStyleProvider *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style);
gboolean (* equal) (const GtkCssValue *value1,
const GtkCssValue *value2);
GtkCssValue * (* transition) (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress);
gboolean (* is_dynamic) (const GtkCssValue *value);
GtkCssValue * (* get_dynamic_value) (GtkCssValue *value,
gint64 monotonic_time);
void (* print) (const GtkCssValue *value,
GString *string);
};
GType _gtk_css_value_get_type (void) G_GNUC_CONST;
GtkCssValue *_gtk_css_value_alloc (const GtkCssValueClass *klass,
gsize size);
#define _gtk_css_value_new(_name, _klass) ((_name *) _gtk_css_value_alloc ((_klass), sizeof (_name)))
#define _gtk_css_value_ref gtk_css_value_ref
GtkCssValue * gtk_css_value_ref (GtkCssValue *value);
#define _gtk_css_value_unref gtk_css_value_unref
void gtk_css_value_unref (GtkCssValue *value);
GtkCssValue *_gtk_css_value_compute (GtkCssValue *value,
guint property_id,
GtkStyleProvider *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style) G_GNUC_PURE;
gboolean _gtk_css_value_equal (const GtkCssValue *value1,
const GtkCssValue *value2) G_GNUC_PURE;
gboolean _gtk_css_value_equal0 (const GtkCssValue *value1,
const GtkCssValue *value2) G_GNUC_PURE;
GtkCssValue *_gtk_css_value_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress);
gboolean gtk_css_value_is_dynamic (const GtkCssValue *value) G_GNUC_PURE;
GtkCssValue * gtk_css_value_get_dynamic_value (GtkCssValue *value,
gint64 monotonic_time);
char * _gtk_css_value_to_string (const GtkCssValue *value);
void _gtk_css_value_print (const GtkCssValue *value,
GString *string);
gboolean gtk_css_value_is_computed (const GtkCssValue *value) G_GNUC_PURE;
G_END_DECLS