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.
20 #if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
21 #error "Only <gtk/gtk.h> can be included directly."
24 #ifndef __GTK_THEMING_ENGINE_H__
25 #define __GTK_THEMING_ENGINE_H__
27 #include <glib-object.h>
30 #include <gtk/gtkstylecontext.h>
31 #include <gtk/gtkwidgetpath.h>
32 #include <gtk/gtkenums.h>
36 #define GTK_TYPE_THEMING_ENGINE (gtk_theming_engine_get_type ())
37 #define GTK_THEMING_ENGINE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_THEMING_ENGINE, GtkThemingEngine))
38 #define GTK_THEMING_ENGINE_CLASS(c) (G_TYPE_CHECK_CLASS_CAST ((c), GTK_TYPE_THEMING_ENGINE, GtkThemingEngineClass))
39 #define GTK_IS_THEMING_ENGINE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_THEMING_ENGINE))
40 #define GTK_IS_THEMING_ENGINE_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE ((c), GTK_TYPE_THEMING_ENGINE))
41 #define GTK_THEMING_ENGINE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_THEMING_ENGINE, GtkThemingEngineClass))
43 typedef struct _GtkThemingEngine GtkThemingEngine;
44 typedef struct _GtkThemingEngineClass GtkThemingEngineClass;
46 struct _GtkThemingEngine
48 GObject parent_object;
53 * GtkThemingEngineClass
54 * @parent_class: The parent class.
55 * @render_line: Renders a line between two points.
56 * @render_background: Renders the background area of a widget region.
57 * @render_frame: Renders the frame around a widget area.
58 * @render_frame_gap: Renders the frame around a widget area with a gap in it.
59 * @render_extension: Renders a extension to a box, usually a notebook tab.
60 * @render_check: Renders a checkmark, as in #GtkCheckButton.
61 * @render_option: Renders an option, as in #GtkRadioButton.
62 * @render_arrow: Renders an arrow pointing to a certain direction.
63 * @render_expander: Renders an element what will expose/expand part of
64 * the UI, as in #GtkExpander.
65 * @render_focus: Renders the focus indicator.
66 * @render_layout: Renders a #PangoLayout
67 * @render_slider: Renders a slider control, as in #GtkScale.
68 * @render_handle: Renders a handle to drag UI elements, as in #GtkPaned.
69 * @render_activity: Renders an area displaying activity, such as in #GtkSpinner,
71 * @render_icon_pixbuf: Renders an icon as a #GdkPixbuf.
72 * @render_icon: Renders an icon given as a #GdkPixbuf.
74 * Base class for theming engines.
76 struct _GtkThemingEngineClass
78 GObjectClass parent_class;
80 void (* render_line) (GtkThemingEngine *engine,
86 void (* render_background) (GtkThemingEngine *engine,
92 void (* render_frame) (GtkThemingEngine *engine,
98 void (* render_frame_gap) (GtkThemingEngine *engine,
104 GtkPositionType gap_side,
107 void (* render_extension) (GtkThemingEngine *engine,
113 GtkPositionType gap_side);
114 void (* render_check) (GtkThemingEngine *engine,
120 void (* render_option) (GtkThemingEngine *engine,
126 void (* render_arrow) (GtkThemingEngine *engine,
132 void (* render_expander) (GtkThemingEngine *engine,
138 void (* render_focus) (GtkThemingEngine *engine,
144 void (* render_layout) (GtkThemingEngine *engine,
148 PangoLayout *layout);
149 void (* render_slider) (GtkThemingEngine *engine,
155 GtkOrientation orientation);
156 void (* render_handle) (GtkThemingEngine *engine,
162 void (* render_activity) (GtkThemingEngine *engine,
169 GdkPixbuf * (* render_icon_pixbuf) (GtkThemingEngine *engine,
170 const GtkIconSource *source,
172 void (* render_icon) (GtkThemingEngine *engine,
179 gpointer padding[15];
182 GType gtk_theming_engine_get_type (void) G_GNUC_CONST;
184 void _gtk_theming_engine_set_context (GtkThemingEngine *engine,
185 GtkStyleContext *context);
187 void gtk_theming_engine_register_property (const gchar *name_space,
188 GtkStylePropertyParser parse_func,
191 void gtk_theming_engine_get_property (GtkThemingEngine *engine,
192 const gchar *property,
195 void gtk_theming_engine_get_valist (GtkThemingEngine *engine,
198 void gtk_theming_engine_get (GtkThemingEngine *engine,
200 ...) G_GNUC_NULL_TERMINATED;
202 void gtk_theming_engine_get_style_property (GtkThemingEngine *engine,
203 const gchar *property_name,
205 void gtk_theming_engine_get_style_valist (GtkThemingEngine *engine,
207 void gtk_theming_engine_get_style (GtkThemingEngine *engine,
210 gboolean gtk_theming_engine_lookup_color (GtkThemingEngine *engine,
211 const gchar *color_name,
214 G_CONST_RETURN GtkWidgetPath * gtk_theming_engine_get_path (GtkThemingEngine *engine);
216 gboolean gtk_theming_engine_has_class (GtkThemingEngine *engine,
217 const gchar *style_class);
218 gboolean gtk_theming_engine_has_region (GtkThemingEngine *engine,
219 const gchar *style_region,
220 GtkRegionFlags *flags);
222 GtkStateFlags gtk_theming_engine_get_state (GtkThemingEngine *engine);
223 gboolean gtk_theming_engine_state_is_running (GtkThemingEngine *engine,
227 GtkTextDirection gtk_theming_engine_get_direction (GtkThemingEngine *engine);
229 GtkJunctionSides gtk_theming_engine_get_junction_sides (GtkThemingEngine *engine);
231 /* Helper functions */
232 void gtk_theming_engine_get_color (GtkThemingEngine *engine,
235 void gtk_theming_engine_get_background_color (GtkThemingEngine *engine,
238 void gtk_theming_engine_get_border_color (GtkThemingEngine *engine,
242 void gtk_theming_engine_get_border (GtkThemingEngine *engine,
245 void gtk_theming_engine_get_padding (GtkThemingEngine *engine,
248 void gtk_theming_engine_get_margin (GtkThemingEngine *engine,
252 const PangoFontDescription * gtk_theming_engine_get_font (GtkThemingEngine *engine,
253 GtkStateFlags state);
255 GtkThemingEngine * gtk_theming_engine_load (const gchar *name);
257 GdkScreen * gtk_theming_engine_get_screen (GtkThemingEngine *engine);
261 #endif /* __GTK_THEMING_ENGINE_H__ */