gtk2/gtk/gtkcsslookup.c
Benjamin Otte c7e9489e3e stylecontext: Use a static style when saved
The only style that is animated is the style of the unsaved primary
node. So there's no need to create animated style objects for the other
ones.

There is a bunch of ugliness in the code currently. Further commits are
expected to fix them.
2015-01-07 14:26:47 +01:00

148 lines
5.0 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
*
* 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 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/>.
*/
#include "config.h"
#include "gtkcsslookupprivate.h"
#include "gtkcssanimatedstyleprivate.h"
#include "gtkcssstaticstyleprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkprivatetypebuiltins.h"
GtkCssLookup *
_gtk_css_lookup_new (const GtkBitmask *relevant)
{
GtkCssLookup *lookup;
guint n = _gtk_css_style_property_get_n_properties ();
lookup = g_malloc0 (sizeof (GtkCssLookup) + sizeof (GtkCssLookupValue) * n);
if (relevant)
{
lookup->missing = _gtk_bitmask_copy (relevant);
}
else
{
lookup->missing = _gtk_bitmask_new ();
lookup->missing = _gtk_bitmask_invert_range (lookup->missing, 0, n);
}
return lookup;
}
void
_gtk_css_lookup_free (GtkCssLookup *lookup)
{
g_return_if_fail (lookup != NULL);
_gtk_bitmask_free (lookup->missing);
g_free (lookup);
}
gboolean
_gtk_css_lookup_is_missing (const GtkCssLookup *lookup,
guint id)
{
g_return_val_if_fail (lookup != NULL, FALSE);
return _gtk_bitmask_get (lookup->missing, id);
}
/**
* _gtk_css_lookup_set:
* @lookup: the lookup
* @id: id of the property to set, see _gtk_style_property_get_id()
* @section: (allow-none): The @section the value was defined in or %NULL
* @value: the “cascading value” to use
*
* Sets the @value for a given @id. No value may have been set for @id
* before. See _gtk_css_lookup_is_missing(). This function is used to
* set the “winning declaration” of a lookup. Note that for performance
* reasons @value and @section are not copied. It is your responsibility
* to ensure they are kept alive until _gtk_css_lookup_free() is called.
**/
void
_gtk_css_lookup_set (GtkCssLookup *lookup,
guint id,
GtkCssSection *section,
GtkCssValue *value)
{
g_return_if_fail (lookup != NULL);
g_return_if_fail (_gtk_bitmask_get (lookup->missing, id));
g_return_if_fail (value != NULL);
lookup->missing = _gtk_bitmask_set (lookup->missing, id, FALSE);
lookup->values[id].value = value;
lookup->values[id].section = section;
}
/**
* _gtk_css_lookup_resolve:
* @lookup: the lookup
* @context: the context the values are resolved for
* @values: a new #GtkCssStyle to be filled with the new properties
*
* Resolves the current lookup into a styleproperties object. This is done
* by converting from the “winning declaration” to the “computed value”.
*
* XXX: This bypasses the notion of “specified value”. If this ever becomes
* an issue, go fix it.
**/
void
_gtk_css_lookup_resolve (GtkCssLookup *lookup,
GtkStyleProviderPrivate *provider,
int scale,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
guint i, n;
g_return_if_fail (lookup != NULL);
g_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style));
n = _gtk_css_style_property_get_n_properties ();
for (i = 0; i < n; i++)
{
if (lookup->values[i].value ||
_gtk_bitmask_get (lookup->missing, i))
{
if (GTK_IS_CSS_ANIMATED_STYLE (style))
gtk_css_animated_style_compute_value (GTK_CSS_ANIMATED_STYLE (style),
provider,
scale,
parent_style,
i,
lookup->values[i].value,
lookup->values[i].section);
else
gtk_css_static_style_compute_value (GTK_CSS_STATIC_STYLE (style),
provider,
scale,
parent_style,
i,
lookup->values[i].value,
lookup->values[i].section);
}
/* else not a relevant property */
}
}