gtk2/gtk/gtkcssenginevalue.c
Benjamin Otte e3fc081c5d cssvalue: Pass property ID to transition function
This is to allow animating arrays properly. I'm not really thrilled
about this solution (we leak propertys into the values again...), but
it's the best I can come up with - I prefer it to having N different
array types...
2012-09-03 12:54:14 +02:00

139 lines
3.4 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 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 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 "gtkcssenginevalueprivate.h"
#include "gtkstylepropertyprivate.h"
struct _GtkCssValue {
GTK_CSS_VALUE_BASE
GtkThemingEngine *engine;
};
static void
gtk_css_value_engine_free (GtkCssValue *value)
{
g_object_unref (value->engine);
g_slice_free (GtkCssValue, value);
}
static GtkCssValue *
gtk_css_value_engine_compute (GtkCssValue *value,
guint property_id,
GtkStyleContext *context,
GtkCssDependencies *dependencies)
{
return _gtk_css_value_ref (value);
}
static gboolean
gtk_css_value_engine_equal (const GtkCssValue *value1,
const GtkCssValue *value2)
{
return value1->engine == value2->engine;
}
static GtkCssValue *
gtk_css_value_engine_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
return NULL;
}
static void
gtk_css_value_engine_print (const GtkCssValue *value,
GString *string)
{
char *name;
g_object_get (value->engine, "name", &name, NULL);
if (name)
g_string_append (string, name);
else
g_string_append (string, "none");
g_free (name);
}
static const GtkCssValueClass GTK_CSS_VALUE_ENGINE = {
gtk_css_value_engine_free,
gtk_css_value_engine_compute,
gtk_css_value_engine_equal,
gtk_css_value_engine_transition,
gtk_css_value_engine_print
};
GtkCssValue *
_gtk_css_engine_value_new (GtkThemingEngine *engine)
{
GtkCssValue *result;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_ENGINE);
result->engine = g_object_ref (engine);
return result;
}
GtkCssValue *
_gtk_css_engine_value_parse (GtkCssParser *parser)
{
GtkThemingEngine *engine;
char *str;
g_return_val_if_fail (parser != NULL, NULL);
if (_gtk_css_parser_try (parser, "none", TRUE))
return _gtk_css_engine_value_new (gtk_theming_engine_load (NULL));
str = _gtk_css_parser_try_ident (parser, TRUE);
if (str == NULL)
{
_gtk_css_parser_error (parser, "Expected a valid theme name");
return NULL;
}
engine = gtk_theming_engine_load (str);
if (engine == NULL)
{
_gtk_css_parser_error (parser, "Theming engine '%s' not found", str);
g_free (str);
return NULL;
}
g_free (str);
return _gtk_css_engine_value_new (engine);
}
GtkThemingEngine *
_gtk_css_engine_value_get_engine (const GtkCssValue *value)
{
g_return_val_if_fail (value->class == &GTK_CSS_VALUE_ENGINE, NULL);
return value->engine;
}