gtk2/gtk/gtkcssnumbervalueprivate.h
Timm Bäder edf56b438e css: short-circuit gtk_css_dimension_value_try_add
No need to allocate a new css value for something that we already have,
because one of the two values is 0
2019-11-14 09:15:58 +01:00

81 lines
3.9 KiB
C

/*
* 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>
*/
#ifndef __GTK_CSS_NUMBER_VALUE_PRIVATE_H__
#define __GTK_CSS_NUMBER_VALUE_PRIVATE_H__
#include "gtkcssparserprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkcssvalueprivate.h"
G_BEGIN_DECLS
typedef enum /*< skip >*/ {
GTK_CSS_POSITIVE_ONLY = (1 << 0),
GTK_CSS_PARSE_PERCENT = (1 << 1),
GTK_CSS_PARSE_NUMBER = (1 << 2),
GTK_CSS_PARSE_LENGTH = (1 << 3),
GTK_CSS_PARSE_ANGLE = (1 << 4),
GTK_CSS_PARSE_TIME = (1 << 5)
} GtkCssNumberParseFlags;
typedef struct _GtkCssNumberValueClass GtkCssNumberValueClass;
struct _GtkCssNumberValueClass {
GtkCssValueClass value_class;
double (* get) (const GtkCssValue *value,
double one_hundred_percent);
GtkCssDimension (* get_dimension) (const GtkCssValue *value);
gboolean (* has_percent) (const GtkCssValue *value);
GtkCssValue * (* multiply) (const GtkCssValue *value,
double factor);
GtkCssValue * (* try_add) (GtkCssValue *value1,
GtkCssValue *value2);
gint (* get_calc_term_order) (const GtkCssValue *value);
};
GtkCssValue * _gtk_css_number_value_new (double value,
GtkCssUnit unit);
GtkCssValue * gtk_css_number_value_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress);
gboolean gtk_css_number_value_can_parse (GtkCssParser *parser);
GtkCssValue * _gtk_css_number_value_parse (GtkCssParser *parser,
GtkCssNumberParseFlags flags);
GtkCssDimension gtk_css_number_value_get_dimension (const GtkCssValue *value) G_GNUC_PURE;
gboolean gtk_css_number_value_has_percent (const GtkCssValue *value) G_GNUC_PURE;
GtkCssValue * gtk_css_number_value_multiply (const GtkCssValue *value,
double factor);
GtkCssValue * gtk_css_number_value_add (GtkCssValue *value1,
GtkCssValue *value2);
GtkCssValue * gtk_css_number_value_try_add (GtkCssValue *value1,
GtkCssValue *value2);
gint gtk_css_number_value_get_calc_term_order (const GtkCssValue *value);
double _gtk_css_number_value_get (const GtkCssValue *number,
double one_hundred_percent) G_GNUC_PURE;
G_END_DECLS
#endif /* __GTK_CSS_NUMBER_VALUE_PRIVATE_H__ */