2014-05-01 17:50:22 +00:00
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/*
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* Copyright © 2012 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 2.1 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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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkcssimageiconthemeprivate.h"
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#include <math.h>
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2015-12-02 02:18:26 +00:00
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#include "gtkcssiconthemevalueprivate.h"
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2014-05-16 02:06:23 +00:00
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#include "gtkcssrgbavalueprivate.h"
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2014-05-01 17:50:22 +00:00
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#include "gtksettingsprivate.h"
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#include "gtkstyleproviderprivate.h"
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G_DEFINE_TYPE (GtkCssImageIconTheme, _gtk_css_image_icon_theme, GTK_TYPE_CSS_IMAGE)
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2014-09-06 01:21:49 +00:00
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static double
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2014-05-01 17:50:22 +00:00
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gtk_css_image_icon_theme_get_aspect_ratio (GtkCssImage *image)
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{
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/* icon theme icons only take a single size when requesting, so we insist on being square */
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return 1.0;
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}
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static void
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gtk_css_image_icon_theme_draw (GtkCssImage *image,
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cairo_t *cr,
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double width,
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double height)
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{
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GtkCssImageIconTheme *icon_theme = GTK_CSS_IMAGE_ICON_THEME (image);
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GError *error = NULL;
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2014-05-16 02:06:23 +00:00
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GtkIconInfo *icon_info;
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2014-05-01 17:50:22 +00:00
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GdkPixbuf *pixbuf;
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gint size;
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size = floor (MIN (width, height));
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if (size <= 0)
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return;
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2014-05-16 02:06:23 +00:00
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icon_info = gtk_icon_theme_lookup_icon_for_scale (icon_theme->icon_theme,
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icon_theme->name,
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size,
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icon_theme->scale,
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GTK_ICON_LOOKUP_USE_BUILTIN);
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if (icon_info == NULL)
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{
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/* XXX: render missing icon image here? */
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return;
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}
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pixbuf = gtk_icon_info_load_symbolic (icon_info,
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&icon_theme->color,
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NULL, NULL, NULL,
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NULL,
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&error);
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2014-05-01 17:50:22 +00:00
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if (pixbuf == NULL)
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{
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/* XXX: render missing icon image here? */
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g_error_free (error);
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return;
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}
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2014-07-02 17:47:48 +00:00
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cairo_translate (cr, width / 2.0, height / 2.0);
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cairo_scale (cr, 1.0 / icon_theme->scale, 1.0 / icon_theme->scale);
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2014-05-01 17:50:22 +00:00
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gdk_cairo_set_source_pixbuf (cr,
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pixbuf,
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2014-07-02 17:47:48 +00:00
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- gdk_pixbuf_get_width (pixbuf) / 2.0,
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- gdk_pixbuf_get_height (pixbuf) / 2.0);
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2014-05-01 17:50:22 +00:00
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cairo_paint (cr);
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g_object_unref (pixbuf);
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2014-05-16 02:06:23 +00:00
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g_object_unref (icon_info);
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2014-05-01 17:50:22 +00:00
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}
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static gboolean
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gtk_css_image_icon_theme_parse (GtkCssImage *image,
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2014-05-16 02:06:23 +00:00
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GtkCssParser *parser)
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2014-05-01 17:50:22 +00:00
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{
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GtkCssImageIconTheme *icon_theme = GTK_CSS_IMAGE_ICON_THEME (image);
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if (!_gtk_css_parser_try (parser, "-gtk-icontheme(", TRUE))
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{
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_gtk_css_parser_error (parser, "Expected '-gtk-icontheme('");
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return FALSE;
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}
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icon_theme->name = _gtk_css_parser_read_string (parser);
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if (icon_theme->name == NULL)
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return FALSE;
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if (!_gtk_css_parser_try (parser, ")", TRUE))
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{
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_gtk_css_parser_error (parser, "Missing closing bracket at end of '-gtk-icontheme'");
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return FALSE;
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}
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return TRUE;
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}
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static void
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gtk_css_image_icon_theme_print (GtkCssImage *image,
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GString *string)
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{
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GtkCssImageIconTheme *icon_theme = GTK_CSS_IMAGE_ICON_THEME (image);
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g_string_append (string, "-gtk-icontheme(");
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_gtk_css_print_string (string, icon_theme->name);
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g_string_append (string, ")");
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}
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static GtkCssImage *
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gtk_css_image_icon_theme_compute (GtkCssImage *image,
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guint property_id,
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GtkStyleProviderPrivate *provider,
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2015-01-31 10:56:15 +00:00
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GtkCssStyle *style,
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2015-02-14 01:27:39 +00:00
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GtkCssStyle *parent_style)
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2014-05-01 17:50:22 +00:00
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{
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GtkCssImageIconTheme *icon_theme = GTK_CSS_IMAGE_ICON_THEME (image);
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GtkCssImageIconTheme *copy;
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copy = g_object_new (GTK_TYPE_CSS_IMAGE_ICON_THEME, NULL);
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copy->name = g_strdup (icon_theme->name);
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2015-12-02 02:18:26 +00:00
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copy->icon_theme = gtk_css_icon_theme_value_get_icon_theme (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_THEME));
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2015-01-31 10:56:15 +00:00
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copy->scale = _gtk_style_provider_private_get_scale (provider);
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copy->color = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_COLOR));
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2014-05-16 02:06:23 +00:00
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2014-05-01 17:50:22 +00:00
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return GTK_CSS_IMAGE (copy);
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}
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static gboolean
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gtk_css_image_icon_theme_equal (GtkCssImage *image1,
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2014-06-29 02:39:02 +00:00
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GtkCssImage *image2)
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2014-05-01 17:50:22 +00:00
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{
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GtkCssImageIconTheme *icon_theme1 = GTK_CSS_IMAGE_ICON_THEME (image1);
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GtkCssImageIconTheme *icon_theme2 = GTK_CSS_IMAGE_ICON_THEME (image2);
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return g_str_equal (icon_theme1->name, icon_theme2->name);
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}
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2014-06-29 02:39:02 +00:00
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static void
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gtk_css_image_icon_theme_dispose (GObject *object)
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{
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GtkCssImageIconTheme *icon_theme = GTK_CSS_IMAGE_ICON_THEME (object);
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g_free (icon_theme->name);
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icon_theme->name = NULL;
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G_OBJECT_CLASS (_gtk_css_image_icon_theme_parent_class)->dispose (object);
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}
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2014-05-01 17:50:22 +00:00
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static void
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_gtk_css_image_icon_theme_class_init (GtkCssImageIconThemeClass *klass)
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{
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GtkCssImageClass *image_class = GTK_CSS_IMAGE_CLASS (klass);
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2014-06-29 02:39:02 +00:00
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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2014-05-01 17:50:22 +00:00
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image_class->get_aspect_ratio = gtk_css_image_icon_theme_get_aspect_ratio;
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image_class->draw = gtk_css_image_icon_theme_draw;
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image_class->parse = gtk_css_image_icon_theme_parse;
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image_class->print = gtk_css_image_icon_theme_print;
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image_class->compute = gtk_css_image_icon_theme_compute;
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image_class->equal = gtk_css_image_icon_theme_equal;
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2014-06-29 02:39:02 +00:00
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object_class->dispose = gtk_css_image_icon_theme_dispose;
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2014-05-01 17:50:22 +00:00
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}
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static void
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_gtk_css_image_icon_theme_init (GtkCssImageIconTheme *icon_theme)
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{
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icon_theme->icon_theme = gtk_icon_theme_get_default ();
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icon_theme->scale = 1;
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}
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