gtk2/gtk/gtkcsscomputedvaluesprivate.h
Benjamin Otte 1454ba15ba css: Huge refactoring to avoid computing wrong values
Here's the shortest description of the bug I can come up with:
When computing values, we have 3 kinds of dependencies:
(1) other properties ("currentColor" or em values)
(2) inherited properties ("inherit")
(3) generic things from the theme (@keyframes or @define-color)
Previously, we passed the GtkStyleContext as an argument, because it
provided these 3 things using:
(1) _gtk_style_context_peek_property()
(2) _gtk_style_context_peek_property(gtk_style_context_get_parent())
(3) context->priv->cascade

However, this makes it impossible to lookup values other than the ones
accessible via _gtk_style_context_peek_property(). And this is exactly
what we are doing in gtk_style_context_update_cache(). So when the cache
updates encountered case (1), they were looking up the values from the
wrong style data.

So this large patch essentially does nothing but replace the
context argument in all compute functions with new arguments for the 3
cases above:
(1) values
(2) parent_values
(3) provider

We apparently have a lot of computing code.
2012-09-28 18:27:49 +02:00

104 lines
6.1 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: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_CSS_COMPUTED_VALUES_PRIVATE_H__
#define __GTK_CSS_COMPUTED_VALUES_PRIVATE_H__
#include <glib-object.h>
#include "gtk/gtkbitmaskprivate.h"
#include "gtk/gtkcsssection.h"
#include "gtk/gtkcssvalueprivate.h"
G_BEGIN_DECLS
#define GTK_TYPE_CSS_COMPUTED_VALUES (_gtk_css_computed_values_get_type ())
#define GTK_CSS_COMPUTED_VALUES(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_COMPUTED_VALUES, GtkCssComputedValues))
#define GTK_CSS_COMPUTED_VALUES_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_COMPUTED_VALUES, GtkCssComputedValuesClass))
#define GTK_IS_CSS_COMPUTED_VALUES(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_COMPUTED_VALUES))
#define GTK_IS_CSS_COMPUTED_VALUES_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_COMPUTED_VALUES))
#define GTK_CSS_COMPUTED_VALUES_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_COMPUTED_VALUES, GtkCssComputedValuesClass))
/* typedef struct _GtkCssComputedValues GtkCssComputedValues; */
typedef struct _GtkCssComputedValuesClass GtkCssComputedValuesClass;
struct _GtkCssComputedValues
{
GObject parent;
GPtrArray *values; /* the unanimated (aka intrinsic) values */
GPtrArray *sections; /* sections the values are defined in */
GPtrArray *animated_values; /* NULL or array of animated values/NULL if not animated */
gint64 current_time; /* the current time in our world */
GSList *animations; /* the running animations, least important one first */
GtkBitmask *depends_on_parent; /* for intrinsic values */
GtkBitmask *equals_parent; /* dito */
GtkBitmask *depends_on_color; /* dito */
GtkBitmask *depends_on_font_size; /* dito */
};
struct _GtkCssComputedValuesClass
{
GObjectClass parent_class;
};
GType _gtk_css_computed_values_get_type (void) G_GNUC_CONST;
GtkCssComputedValues * _gtk_css_computed_values_new (void);
void _gtk_css_computed_values_compute_value (GtkCssComputedValues *values,
GtkStyleProviderPrivate *provider,
GtkCssComputedValues *parent_values,
guint id,
GtkCssValue *specified,
GtkCssSection *section);
void _gtk_css_computed_values_set_value (GtkCssComputedValues *values,
guint id,
GtkCssValue *value,
GtkCssDependencies dependencies,
GtkCssSection *section);
void _gtk_css_computed_values_set_animated_value (GtkCssComputedValues *values,
guint id,
GtkCssValue *value);
GtkCssValue * _gtk_css_computed_values_get_value (GtkCssComputedValues *values,
guint id);
GtkCssSection * _gtk_css_computed_values_get_section (GtkCssComputedValues *values,
guint id);
GtkCssValue * _gtk_css_computed_values_get_intrinsic_value (GtkCssComputedValues *values,
guint id);
GtkBitmask * _gtk_css_computed_values_get_difference (GtkCssComputedValues *values,
GtkCssComputedValues *other);
void _gtk_css_computed_values_create_animations (GtkCssComputedValues *values,
GtkCssComputedValues *parent_values,
gint64 timestamp,
GtkStyleProviderPrivate *provider,
GtkCssComputedValues *source);
GtkBitmask * _gtk_css_computed_values_advance (GtkCssComputedValues *values,
gint64 timestamp);
void _gtk_css_computed_values_cancel_animations (GtkCssComputedValues *values);
gboolean _gtk_css_computed_values_is_static (GtkCssComputedValues *values);
G_END_DECLS
#endif /* __GTK_CSS_COMPUTED_VALUES_PRIVATE_H__ */