forked from AuroraMiddleware/gtk
1116914ea0
This way, we can remove it as a separate argument from gtk_css_value_compute() and allow computation to only depend on one thing: the style provider.
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcssinitialvalueprivate.h"
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#include "gtkcssarrayvalueprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkcssstringvalueprivate.h"
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#include "gtkcssstylepropertyprivate.h"
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#include "gtksettingsprivate.h"
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#include "gtkstyleproviderprivate.h"
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struct _GtkCssValue {
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GTK_CSS_VALUE_BASE
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};
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static void
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gtk_css_value_initial_free (GtkCssValue *value)
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{
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/* Can only happen if the unique value gets unreffed too often */
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g_assert_not_reached ();
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}
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static GtkCssValue *
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gtk_css_value_initial_compute (GtkCssValue *value,
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guint property_id,
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GtkStyleProviderPrivate *provider,
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GtkCssStyle *style,
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GtkCssStyle *parent_style,
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GtkCssDependencies *dependencies)
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{
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GtkSettings *settings;
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switch (property_id)
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{
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case GTK_CSS_PROPERTY_DPI:
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settings = _gtk_style_provider_private_get_settings (provider);
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if (settings)
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{
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GdkScreen *screen = _gtk_settings_get_screen (settings);
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double resolution = gdk_screen_get_resolution (screen);
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if (resolution > 0.0)
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return _gtk_css_number_value_new (resolution, GTK_CSS_NUMBER);
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}
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break;
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case GTK_CSS_PROPERTY_FONT_FAMILY:
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settings = _gtk_style_provider_private_get_settings (provider);
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if (settings)
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{
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PangoFontDescription *description;
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char *font_name;
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GtkCssValue *value;
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g_object_get (settings, "gtk-font-name", &font_name, NULL);
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description = pango_font_description_from_string (font_name);
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g_free (font_name);
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if (description == NULL)
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break;
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if (pango_font_description_get_set_fields (description) & PANGO_FONT_MASK_FAMILY)
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{
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value = _gtk_css_array_value_new (_gtk_css_string_value_new (pango_font_description_get_family (description)));
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pango_font_description_free (description);
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return value;
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}
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pango_font_description_free (description);
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}
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break;
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default:
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break;
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}
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return _gtk_css_value_compute (_gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (property_id)),
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property_id,
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provider,
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style,
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parent_style,
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dependencies);
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}
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static gboolean
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gtk_css_value_initial_equal (const GtkCssValue *value1,
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const GtkCssValue *value2)
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{
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return TRUE;
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}
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static GtkCssValue *
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gtk_css_value_initial_transition (GtkCssValue *start,
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GtkCssValue *end,
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guint property_id,
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double progress)
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{
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return NULL;
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}
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static void
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gtk_css_value_initial_print (const GtkCssValue *value,
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GString *string)
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{
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g_string_append (string, "initial");
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}
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static const GtkCssValueClass GTK_CSS_VALUE_INITIAL = {
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gtk_css_value_initial_free,
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gtk_css_value_initial_compute,
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gtk_css_value_initial_equal,
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gtk_css_value_initial_transition,
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gtk_css_value_initial_print
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};
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static GtkCssValue initial = { >K_CSS_VALUE_INITIAL, 1 };
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GtkCssValue *
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_gtk_css_initial_value_new (void)
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{
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return _gtk_css_value_ref (&initial);
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}
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GtkCssValue *
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_gtk_css_initial_value_get (void)
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{
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return &initial;
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}
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