1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #include "gtkmodifierstyle.h"
24 typedef struct GtkModifierStylePrivate GtkModifierStylePrivate;
25 typedef struct StylePropertyValue StylePropertyValue;
27 struct GtkModifierStylePrivate
29 GtkStyleProperties *style;
30 GHashTable *color_properties;
38 static guint signals [LAST_SIGNAL] = { 0 };
40 static void gtk_modifier_style_provider_init (GtkStyleProviderIface *iface);
41 static void gtk_modifier_style_finalize (GObject *object);
43 G_DEFINE_TYPE_EXTENDED (GtkModifierStyle, _gtk_modifier_style, G_TYPE_OBJECT, 0,
44 G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER,
45 gtk_modifier_style_provider_init));
48 _gtk_modifier_style_class_init (GtkModifierStyleClass *klass)
50 GObjectClass *object_class;
52 object_class = G_OBJECT_CLASS (klass);
54 object_class->finalize = gtk_modifier_style_finalize;
57 g_signal_new (I_("changed"),
58 G_TYPE_FROM_CLASS (object_class),
61 g_cclosure_marshal_VOID__VOID,
64 g_type_class_add_private (object_class, sizeof (GtkModifierStylePrivate));
68 _gtk_modifier_style_init (GtkModifierStyle *modifier_style)
70 GtkModifierStylePrivate *priv;
72 priv = modifier_style->priv = G_TYPE_INSTANCE_GET_PRIVATE (modifier_style,
73 GTK_TYPE_MODIFIER_STYLE,
74 GtkModifierStylePrivate);
76 priv->color_properties = g_hash_table_new_full (g_str_hash,
78 (GDestroyNotify) g_free,
79 (GDestroyNotify) gdk_rgba_free);
80 priv->style = gtk_style_properties_new ();
83 static GtkStyleProperties *
84 gtk_modifier_style_get_style (GtkStyleProvider *provider,
87 GtkModifierStylePrivate *priv;
89 priv = GTK_MODIFIER_STYLE (provider)->priv;
90 return g_object_ref (priv->style);
94 gtk_modifier_style_get_style_property (GtkStyleProvider *provider,
100 GtkModifierStylePrivate *priv;
105 /* Reject non-color types for now */
106 if (pspec->value_type != GDK_TYPE_COLOR)
109 priv = GTK_MODIFIER_STYLE (provider)->priv;
110 str = g_strdup_printf ("-%s-%s",
111 g_type_name (pspec->owner_type),
114 rgba = g_hash_table_lookup (priv->color_properties, str);
120 color.red = (guint) (rgba->red * 65535.) + 0.5;
121 color.green = (guint) (rgba->green * 65535.) + 0.5;
122 color.blue = (guint) (rgba->blue * 65535.) + 0.5;
124 g_value_set_boxed (value, &color);
129 gtk_modifier_style_provider_init (GtkStyleProviderIface *iface)
131 iface->get_style = gtk_modifier_style_get_style;
132 iface->get_style_property = gtk_modifier_style_get_style_property;
136 gtk_modifier_style_finalize (GObject *object)
138 GtkModifierStylePrivate *priv;
140 priv = GTK_MODIFIER_STYLE (object)->priv;
141 g_hash_table_destroy (priv->color_properties);
142 g_object_unref (priv->style);
144 G_OBJECT_CLASS (_gtk_modifier_style_parent_class)->finalize (object);
148 _gtk_modifier_style_new (void)
150 return g_object_new (GTK_TYPE_MODIFIER_STYLE, NULL);
154 modifier_style_set_color (GtkModifierStyle *style,
157 const GdkRGBA *color)
159 GtkModifierStylePrivate *priv;
162 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
165 gtk_style_properties_get (priv->style, state,
169 if ((!color && !old_color) ||
170 (color && old_color && gdk_rgba_equal (color, old_color)))
172 gdk_rgba_free (old_color);
177 gtk_style_properties_set (priv->style, state,
181 gtk_style_properties_unset_property (priv->style, prop, state);
183 g_signal_emit (style, signals[CHANGED], 0);
184 gdk_rgba_free (old_color);
188 _gtk_modifier_style_set_background_color (GtkModifierStyle *style,
190 const GdkRGBA *color)
192 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
194 modifier_style_set_color (style, "background-color", state, color);
198 _gtk_modifier_style_set_color (GtkModifierStyle *style,
200 const GdkRGBA *color)
202 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
204 modifier_style_set_color (style, "color", state, color);
208 _gtk_modifier_style_set_font (GtkModifierStyle *style,
209 const PangoFontDescription *font_desc)
211 GtkModifierStylePrivate *priv;
212 PangoFontDescription *old_font;
214 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
217 gtk_style_properties_get (priv->style, 0,
221 if ((!old_font && !font_desc) ||
222 (old_font && font_desc &&
223 pango_font_description_equal (old_font, font_desc)))
226 pango_font_description_free (old_font);
232 gtk_style_properties_set (priv->style, 0,
236 gtk_style_properties_unset_property (priv->style, "font", 0);
239 pango_font_description_free (old_font);
241 g_signal_emit (style, signals[CHANGED], 0);
245 _gtk_modifier_style_map_color (GtkModifierStyle *style,
247 const GdkRGBA *color)
249 GtkModifierStylePrivate *priv;
250 GtkSymbolicColor *symbolic_color = NULL;
252 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
253 g_return_if_fail (name != NULL);
258 symbolic_color = gtk_symbolic_color_new_literal (color);
260 gtk_style_properties_map_color (priv->style,
261 name, symbolic_color);
263 g_signal_emit (style, signals[CHANGED], 0);
267 _gtk_modifier_style_set_color_property (GtkModifierStyle *style,
269 const gchar *prop_name,
270 const GdkRGBA *color)
272 GtkModifierStylePrivate *priv;
273 const GdkRGBA *old_color;
276 g_return_if_fail (GTK_IS_MODIFIER_STYLE (style));
277 g_return_if_fail (g_type_is_a (widget_type, GTK_TYPE_WIDGET));
278 g_return_if_fail (prop_name != NULL);
281 str = g_strdup_printf ("-%s-%s", g_type_name (widget_type), prop_name);
283 old_color = g_hash_table_lookup (priv->color_properties, str);
285 if ((!color && !old_color) ||
286 (color && old_color && gdk_rgba_equal (color, old_color)))
294 g_hash_table_insert (priv->color_properties, str,
295 gdk_rgba_copy (color));
299 g_hash_table_remove (priv->color_properties, str);
303 g_signal_emit (style, signals[CHANGED], 0);