gtk2/gtk/gtkcssinitialvalue.c
Matthias Clasen 309c6dfaf8 css: Use setters for font size and family
This avoid creating pango font descriptions all the time, when
the gtk-font-name setting hasn't actually changed.
2016-05-01 01:10:59 -04:00

124 lines
3.6 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 "gtkcssinitialvalueprivate.h"
#include "gtkcssarrayvalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcssstringvalueprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtksettingsprivate.h"
#include "gtkstyleproviderprivate.h"
struct _GtkCssValue {
GTK_CSS_VALUE_BASE
};
static void
gtk_css_value_initial_free (GtkCssValue *value)
{
/* Can only happen if the unique value gets unreffed too often */
g_assert_not_reached ();
}
static GtkCssValue *
gtk_css_value_initial_compute (GtkCssValue *value,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkSettings *settings;
switch (property_id)
{
case GTK_CSS_PROPERTY_DPI:
settings = _gtk_style_provider_private_get_settings (provider);
if (settings)
{
GdkScreen *screen = _gtk_settings_get_screen (settings);
double resolution = gdk_screen_get_resolution (screen);
if (resolution > 0.0)
return _gtk_css_number_value_new (resolution, GTK_CSS_NUMBER);
}
break;
case GTK_CSS_PROPERTY_FONT_FAMILY:
settings = _gtk_style_provider_private_get_settings (provider);
if (settings && gtk_settings_get_font_family (settings) != NULL)
return _gtk_css_array_value_new (_gtk_css_string_value_new (gtk_settings_get_font_family (settings)));
break;
default:
break;
}
return _gtk_css_value_compute (_gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (property_id)),
property_id,
provider,
style,
parent_style);
}
static gboolean
gtk_css_value_initial_equal (const GtkCssValue *value1,
const GtkCssValue *value2)
{
return TRUE;
}
static GtkCssValue *
gtk_css_value_initial_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
return NULL;
}
static void
gtk_css_value_initial_print (const GtkCssValue *value,
GString *string)
{
g_string_append (string, "initial");
}
static const GtkCssValueClass GTK_CSS_VALUE_INITIAL = {
gtk_css_value_initial_free,
gtk_css_value_initial_compute,
gtk_css_value_initial_equal,
gtk_css_value_initial_transition,
gtk_css_value_initial_print
};
static GtkCssValue initial = { &GTK_CSS_VALUE_INITIAL, 1 };
GtkCssValue *
_gtk_css_initial_value_new (void)
{
return _gtk_css_value_ref (&initial);
}
GtkCssValue *
_gtk_css_initial_value_get (void)
{
return &initial;
}