forked from AuroraMiddleware/gtk
25271fe781
We need to store the border widths independant of them being set to 0 by border styles, because otherwise we'd need to track that dependency and recompute on changes, and I don't want to add more entries to GtkCssDependencies just for this special case. By moving the code that does the setting to 0 from the compute stage to the query stage, we can achieve this. Now we need to just be aware that the actual value stored is not set to 0 when we use gtk_css_computed_values_get_value().
418 lines
14 KiB
C
418 lines
14 KiB
C
/*
|
||
* Copyright © 2011 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>
|
||
*/
|
||
|
||
#include "config.h"
|
||
|
||
#include "gtkcssstylepropertyprivate.h"
|
||
|
||
#include "gtkcssenumvalueprivate.h"
|
||
#include "gtkcssinheritvalueprivate.h"
|
||
#include "gtkcssinitialvalueprivate.h"
|
||
#include "gtkcssstylefuncsprivate.h"
|
||
#include "gtkcsstypesprivate.h"
|
||
#include "gtkintl.h"
|
||
#include "gtkprivatetypebuiltins.h"
|
||
#include "gtkstylepropertiesprivate.h"
|
||
|
||
/* this is in case round() is not provided by the compiler,
|
||
* such as in the case of C89 compilers, like MSVC
|
||
*/
|
||
#include "fallback-c89.c"
|
||
|
||
enum {
|
||
PROP_0,
|
||
PROP_ANIMATED,
|
||
PROP_ID,
|
||
PROP_INHERIT,
|
||
PROP_INITIAL
|
||
};
|
||
|
||
G_DEFINE_TYPE (GtkCssStyleProperty, _gtk_css_style_property, GTK_TYPE_STYLE_PROPERTY)
|
||
|
||
static void
|
||
gtk_css_style_property_constructed (GObject *object)
|
||
{
|
||
GtkCssStyleProperty *property = GTK_CSS_STYLE_PROPERTY (object);
|
||
GtkCssStylePropertyClass *klass = GTK_CSS_STYLE_PROPERTY_GET_CLASS (property);
|
||
|
||
property->id = klass->style_properties->len;
|
||
g_ptr_array_add (klass->style_properties, property);
|
||
|
||
G_OBJECT_CLASS (_gtk_css_style_property_parent_class)->constructed (object);
|
||
}
|
||
|
||
static void
|
||
gtk_css_style_property_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkCssStyleProperty *property = GTK_CSS_STYLE_PROPERTY (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ANIMATED:
|
||
property->animated = g_value_get_boolean (value);
|
||
break;
|
||
case PROP_INHERIT:
|
||
property->inherit = g_value_get_boolean (value);
|
||
break;
|
||
case PROP_INITIAL:
|
||
property->initial_value = g_value_dup_boxed (value);
|
||
g_assert (property->initial_value != NULL);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_css_style_property_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkCssStyleProperty *property = GTK_CSS_STYLE_PROPERTY (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ANIMATED:
|
||
g_value_set_boolean (value, property->animated);
|
||
break;
|
||
case PROP_ID:
|
||
g_value_set_boolean (value, property->id);
|
||
break;
|
||
case PROP_INHERIT:
|
||
g_value_set_boolean (value, property->inherit);
|
||
break;
|
||
case PROP_INITIAL:
|
||
g_value_set_boxed (value, property->initial_value);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
_gtk_css_style_property_assign (GtkStyleProperty *property,
|
||
GtkStyleProperties *props,
|
||
GtkStateFlags state,
|
||
const GValue *value)
|
||
{
|
||
GtkCssStyleProperty *style;
|
||
GtkCssValue *css_value;
|
||
|
||
style = GTK_CSS_STYLE_PROPERTY (property);
|
||
css_value = style->assign_value (style, value);
|
||
|
||
_gtk_style_properties_set_property_by_property (props,
|
||
style,
|
||
state,
|
||
css_value);
|
||
_gtk_css_value_unref (css_value);
|
||
}
|
||
|
||
static gboolean
|
||
_gtk_css_style_property_query_special_case (GtkCssStyleProperty *property,
|
||
GValue *value,
|
||
GtkStyleQueryFunc query_func,
|
||
gpointer query_data)
|
||
{
|
||
GtkBorderStyle border_style;
|
||
|
||
switch (property->id)
|
||
{
|
||
case GTK_CSS_PROPERTY_BORDER_TOP_WIDTH:
|
||
border_style = _gtk_css_border_style_value_get (query_func (GTK_CSS_PROPERTY_BORDER_TOP_STYLE, query_data));
|
||
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
|
||
{
|
||
g_value_init (value, G_TYPE_INT);
|
||
return TRUE;
|
||
}
|
||
break;
|
||
case GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH:
|
||
border_style = _gtk_css_border_style_value_get (query_func (GTK_CSS_PROPERTY_BORDER_RIGHT_STYLE, query_data));
|
||
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
|
||
{
|
||
g_value_init (value, G_TYPE_INT);
|
||
return TRUE;
|
||
}
|
||
break;
|
||
case GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH:
|
||
border_style = _gtk_css_border_style_value_get (query_func (GTK_CSS_PROPERTY_BORDER_BOTTOM_STYLE, query_data));
|
||
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
|
||
{
|
||
g_value_init (value, G_TYPE_INT);
|
||
return TRUE;
|
||
}
|
||
break;
|
||
case GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH:
|
||
border_style = _gtk_css_border_style_value_get (query_func (GTK_CSS_PROPERTY_BORDER_LEFT_STYLE, query_data));
|
||
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
|
||
{
|
||
g_value_init (value, G_TYPE_INT);
|
||
return TRUE;
|
||
}
|
||
break;
|
||
case GTK_CSS_PROPERTY_OUTLINE_WIDTH:
|
||
border_style = _gtk_css_border_style_value_get (query_func (GTK_CSS_PROPERTY_OUTLINE_STYLE, query_data));
|
||
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
|
||
{
|
||
g_value_init (value, G_TYPE_INT);
|
||
return TRUE;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
_gtk_css_style_property_query (GtkStyleProperty *property,
|
||
GValue *value,
|
||
GtkStyleQueryFunc query_func,
|
||
gpointer query_data)
|
||
{
|
||
GtkCssStyleProperty *style_property = GTK_CSS_STYLE_PROPERTY (property);
|
||
GtkCssValue *css_value;
|
||
|
||
/* I don't like this special case being here in this generic code path, but no idea where else to put it. */
|
||
if (_gtk_css_style_property_query_special_case (style_property, value, query_func, query_data))
|
||
return;
|
||
|
||
css_value = (* query_func) (GTK_CSS_STYLE_PROPERTY (property)->id, query_data);
|
||
if (css_value == NULL)
|
||
css_value =_gtk_css_style_property_get_initial_value (style_property);
|
||
|
||
style_property->query_value (style_property, css_value, value);
|
||
}
|
||
|
||
static GtkCssValue *
|
||
gtk_css_style_property_parse_value (GtkStyleProperty *property,
|
||
GtkCssParser *parser)
|
||
{
|
||
GtkCssStyleProperty *style_property = GTK_CSS_STYLE_PROPERTY (property);
|
||
|
||
if (_gtk_css_parser_try (parser, "initial", TRUE))
|
||
{
|
||
/* the initial value can be explicitly specified with the
|
||
* ‘initial’ keyword which all properties accept.
|
||
*/
|
||
return _gtk_css_initial_value_new ();
|
||
}
|
||
else if (_gtk_css_parser_try (parser, "inherit", TRUE))
|
||
{
|
||
/* All properties accept the ‘inherit’ value which
|
||
* explicitly specifies that the value will be determined
|
||
* by inheritance. The ‘inherit’ value can be used to
|
||
* strengthen inherited values in the cascade, and it can
|
||
* also be used on properties that are not normally inherited.
|
||
*/
|
||
return _gtk_css_inherit_value_new ();
|
||
}
|
||
|
||
return (* style_property->parse_value) (style_property, parser);
|
||
}
|
||
|
||
static void
|
||
_gtk_css_style_property_class_init (GtkCssStylePropertyClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GtkStylePropertyClass *property_class = GTK_STYLE_PROPERTY_CLASS (klass);
|
||
|
||
object_class->constructed = gtk_css_style_property_constructed;
|
||
object_class->set_property = gtk_css_style_property_set_property;
|
||
object_class->get_property = gtk_css_style_property_get_property;
|
||
|
||
g_object_class_install_property (object_class,
|
||
PROP_ANIMATED,
|
||
g_param_spec_boolean ("animated",
|
||
P_("Animated"),
|
||
P_("Set if the value can be animated"),
|
||
FALSE,
|
||
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
|
||
g_object_class_install_property (object_class,
|
||
PROP_ID,
|
||
g_param_spec_uint ("id",
|
||
P_("ID"),
|
||
P_("The numeric id for quick access"),
|
||
0, G_MAXUINT, 0,
|
||
G_PARAM_READABLE));
|
||
g_object_class_install_property (object_class,
|
||
PROP_INHERIT,
|
||
g_param_spec_boolean ("inherit",
|
||
P_("Inherit"),
|
||
P_("Set if the value is inherited by default"),
|
||
FALSE,
|
||
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
|
||
g_object_class_install_property (object_class,
|
||
PROP_INITIAL,
|
||
g_param_spec_boxed ("initial-value",
|
||
P_("Initial value"),
|
||
P_("The initial specified value used for this property"),
|
||
GTK_TYPE_CSS_VALUE,
|
||
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
|
||
|
||
property_class->assign = _gtk_css_style_property_assign;
|
||
property_class->query = _gtk_css_style_property_query;
|
||
property_class->parse_value = gtk_css_style_property_parse_value;
|
||
|
||
klass->style_properties = g_ptr_array_new ();
|
||
}
|
||
|
||
static GtkCssValue *
|
||
gtk_css_style_property_real_parse_value (GtkCssStyleProperty *property,
|
||
GtkCssParser *parser)
|
||
{
|
||
g_assert_not_reached ();
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
_gtk_css_style_property_init (GtkCssStyleProperty *property)
|
||
{
|
||
property->parse_value = gtk_css_style_property_real_parse_value;
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_get_n_properties:
|
||
*
|
||
* Gets the number of style properties. This number can increase when new
|
||
* theme engines are loaded. Shorthand properties are not included here.
|
||
*
|
||
* Returns: The number of style properties.
|
||
**/
|
||
guint
|
||
_gtk_css_style_property_get_n_properties (void)
|
||
{
|
||
GtkCssStylePropertyClass *klass;
|
||
|
||
klass = g_type_class_peek (GTK_TYPE_CSS_STYLE_PROPERTY);
|
||
if (G_UNLIKELY (klass == NULL))
|
||
{
|
||
_gtk_style_property_init_properties ();
|
||
klass = g_type_class_peek (GTK_TYPE_CSS_STYLE_PROPERTY);
|
||
g_assert (klass);
|
||
}
|
||
|
||
return klass->style_properties->len;
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_lookup_by_id:
|
||
* @id: the id of the property
|
||
*
|
||
* Gets the style property with the given id. All style properties (but not
|
||
* shorthand properties) are indexable by id so that it's easy to use arrays
|
||
* when doing style lookups.
|
||
*
|
||
* Returns: (transfer none): The style property with the given id
|
||
**/
|
||
GtkCssStyleProperty *
|
||
_gtk_css_style_property_lookup_by_id (guint id)
|
||
{
|
||
GtkCssStylePropertyClass *klass;
|
||
|
||
klass = g_type_class_peek (GTK_TYPE_CSS_STYLE_PROPERTY);
|
||
if (G_UNLIKELY (klass == NULL))
|
||
{
|
||
_gtk_style_property_init_properties ();
|
||
klass = g_type_class_peek (GTK_TYPE_CSS_STYLE_PROPERTY);
|
||
g_assert (klass);
|
||
}
|
||
g_return_val_if_fail (id < klass->style_properties->len, NULL);
|
||
|
||
return g_ptr_array_index (klass->style_properties, id);
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_is_inherit:
|
||
* @property: the property
|
||
*
|
||
* Queries if the given @property is inherited. See
|
||
* <ulink url="http://www.w3.org/TR/css3-cascade/#inheritance>
|
||
* the CSS documentation</ulink> for an explanation of this concept.
|
||
*
|
||
* Returns: %TRUE if the property is inherited by default.
|
||
**/
|
||
gboolean
|
||
_gtk_css_style_property_is_inherit (GtkCssStyleProperty *property)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), FALSE);
|
||
|
||
return property->inherit;
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_is_animated:
|
||
* @property: the property
|
||
*
|
||
* Queries if the given @property can be is animated. See
|
||
* <ulink url="http://www.w3.org/TR/css3-transitions/#animatable-css>
|
||
* the CSS documentation</ulink> for animatable properties.
|
||
*
|
||
* Returns: %TRUE if the property can be animated.
|
||
**/
|
||
gboolean
|
||
_gtk_css_style_property_is_animated (GtkCssStyleProperty *property)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), FALSE);
|
||
|
||
return property->animated;
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_get_id:
|
||
* @property: the property
|
||
*
|
||
* Gets the id for the given property. IDs are used to allow using arrays
|
||
* for style lookups.
|
||
*
|
||
* Returns: The id of the property
|
||
**/
|
||
guint
|
||
_gtk_css_style_property_get_id (GtkCssStyleProperty *property)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), 0);
|
||
|
||
return property->id;
|
||
}
|
||
|
||
/**
|
||
* _gtk_css_style_property_get_initial_value:
|
||
* @property: the property
|
||
*
|
||
* Queries the initial value of the given @property. See
|
||
* <ulink url="http://www.w3.org/TR/css3-cascade/#intial>
|
||
* the CSS documentation</ulink> for an explanation of this concept.
|
||
*
|
||
* Returns: a reference to the initial value. The value will never change.
|
||
**/
|
||
GtkCssValue *
|
||
_gtk_css_style_property_get_initial_value (GtkCssStyleProperty *property)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), NULL);
|
||
|
||
return property->initial_value;
|
||
}
|