icon-helper: add GtkIconHelper private object

GtkIconHelper is a helper object to easily obtain a pixbuf from
different icon sources (e.g. a GIcon, an icon name, a stock id, ...).

Code is ported from GtkImage, which will be adapted in the next commit.

1 files changed, 131 insertions, 0 deletions

diff --git a/gtk/gtkiconhelperprivate.h b/gtk/gtkiconhelperprivate.h
new file mode 100644
index 0000000000..ad2b5f2a54
--- /dev/null
+++ b/gtk/gtkiconhelperprivate.h
@@ -0,0 +1,131 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * Authors: Cosimo Cecchi <cosimoc@gnome.org>
+ *
+ * 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GTK_ICON_HELPER_H__
+#define __GTK_ICON_HELPER_H__
+
+#include <glib-object.h>
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_ICON_HELPER _gtk_icon_helper_get_type()
+
+#define GTK_ICON_HELPER(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   GTK_TYPE_ICON_HELPER, GtkIconHelper))
+
+#define GTK_ICON_HELPER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), \
+   GTK_TYPE_ICON_HELPER, GtkIconHelperClass))
+
+#define GTK_IS_ICON_HELPER(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   GTK_TYPE_ICON_HELPER))
+
+#define GTK_IS_ICON_HELPER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
+   GTK_TYPE_ICON_HELPER))
+
+#define GTK_ICON_HELPER_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
+   GTK_TYPE_ICON_HELPER, GtkIconHelperClass))
+
+typedef struct _GtkIconHelper GtkIconHelper;
+typedef struct _GtkIconHelperClass GtkIconHelperClass;
+typedef struct _GtkIconHelperPrivate GtkIconHelperPrivate;
+
+struct _GtkIconHelper
+{
+  GObject parent;
+
+  GtkIconHelperPrivate *priv;
+};
+
+struct _GtkIconHelperClass
+{
+  GObjectClass parent_class;
+};
+
+GType _gtk_icon_helper_get_type (void) G_GNUC_CONST;
+
+GtkIconHelper *_gtk_icon_helper_new (void);
+
+void _gtk_icon_helper_clear (GtkIconHelper *self);
+void _gtk_icon_helper_invalidate (GtkIconHelper *self);
+
+gboolean _gtk_icon_helper_get_is_empty (GtkIconHelper *self);
+
+void _gtk_icon_helper_set_gicon (GtkIconHelper *self,
+                                 GIcon *gicon,
+                                 GtkIconSize icon_size);
+void _gtk_icon_helper_set_pixbuf (GtkIconHelper *self,
+                                  GdkPixbuf *pixbuf);
+void _gtk_icon_helper_set_animation (GtkIconHelper *self,
+                                     GdkPixbufAnimation *animation);
+void _gtk_icon_helper_set_icon_set (GtkIconHelper *self,
+                                    GtkIconSet *icon_set,
+                                    GtkIconSize icon_size);
+
+void _gtk_icon_helper_set_icon_name (GtkIconHelper *self,
+                                     const gchar *icon_name,
+                                     GtkIconSize icon_size);
+void _gtk_icon_helper_set_stock_id (GtkIconHelper *self,
+                                    const gchar *stock_id,
+                                    GtkIconSize icon_size);
+
+void _gtk_icon_helper_set_icon_size (GtkIconHelper *self,
+                                     GtkIconSize icon_size);
+void _gtk_icon_helper_set_pixel_size (GtkIconHelper *self,
+                                      gint pixel_size);
+void _gtk_icon_helper_set_use_fallback (GtkIconHelper *self,
+                                        gboolean use_fallback);
+
+GtkImageType _gtk_icon_helper_get_storage_type (GtkIconHelper *self);
+GtkIconSize _gtk_icon_helper_get_icon_size (GtkIconHelper *self);
+gint _gtk_icon_helper_get_pixel_size (GtkIconHelper *self);
+gboolean _gtk_icon_helper_get_use_fallback (GtkIconHelper *self);
+
+GdkPixbuf *_gtk_icon_helper_peek_pixbuf (GtkIconHelper *self);
+GIcon *_gtk_icon_helper_peek_gicon (GtkIconHelper *self);
+GtkIconSet *_gtk_icon_helper_peek_icon_set (GtkIconHelper *self);
+GdkPixbufAnimation *_gtk_icon_helper_peek_animation (GtkIconHelper *self);
+
+const gchar *_gtk_icon_helper_get_stock_id (GtkIconHelper *self);
+const gchar *_gtk_icon_helper_get_icon_name (GtkIconHelper *self);
+
+GdkPixbuf *_gtk_icon_helper_ensure_pixbuf (GtkIconHelper *self,
+                                           GtkStyleContext *context);
+void _gtk_icon_helper_get_size (GtkIconHelper *self,
+                                GtkStyleContext *context,
+                                gint *width_out,
+                                gint *height_out);
+
+void _gtk_icon_helper_draw (GtkIconHelper *self,
+                            GtkStyleContext *context,
+                            cairo_t *cr,
+                            gdouble x,
+                            gdouble y);
+
+G_END_DECLS
+
+#endif /* __GTK_ICON_HELPER_H__ */