2008-04-17 Emmanuele Bassi <ebassi@openedhand.com>

	* clutter-gtk/gtk-clutter-util.[ch]: Add utility functions to
	ClutterGtk to be able to retrieve the ClutterColor equivalent
	of the various style color components of a GtkWidget.

	* clutter-gtk/Makefile.am: Add gtk-clutter-util.[ch] to the build.

	* doc/reference/clutter-gtk-docs.sgml: Add the new section in
	the documentation.

	* examples/gtk-clutter-events.c (create_colors): Test the newly
	added color retrieval API.

1 files changed, 146 insertions, 0 deletions

diff --git a/clutter-gtk/gtk-clutter-util.c b/clutter-gtk/gtk-clutter-util.c
new file mode 100644
index 0000000..5ebd74b
--- /dev/null
+++ b/clutter-gtk/gtk-clutter-util.c
@@ -0,0 +1,146 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gtk/gtk.h>
+#include <clutter/clutter.h>
+
+#include "gtk-clutter-util.h"
+
+/**
+ * SECTION:gtk-clutter-util
+ * @short_description: Utility functions for integrating Clutter in GTK+
+ *
+ * FIXME
+ *
+ */
+
+static inline void
+gtk_clutter_get_component (GtkWidget    *widget,
+                           GtkRcFlags    component,
+                           GtkStateType  state,
+                           ClutterColor *color)
+{
+  GtkStyle *style = gtk_widget_get_style (widget);
+  GdkColor gtk_color = { 0, };
+
+  switch (component)
+    {
+    case GTK_RC_FG:
+      gtk_color = style->fg[state];
+      break;
+
+    case GTK_RC_BG:
+      gtk_color = style->bg[state];
+      break;
+
+    case GTK_RC_TEXT:
+      gtk_color = style->text[state];
+      break;
+
+    case GTK_RC_BASE:
+      gtk_color = style->base[state];
+      break;
+
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+
+  color->red   = (guint8) ((gtk_color.red   / 65535.0) * 255);
+  color->green = (guint8) ((gtk_color.green / 65535.0) * 255);
+  color->blue  = (guint8) ((gtk_color.blue  / 65535.0) * 255);
+}
+
+/**
+ * gtk_clutter_get_fg_color:
+ * @widget:
+ * @state:
+ * @color:
+ *
+ * FIXME
+ *
+ * Since: 0.8
+ */
+void
+gtk_clutter_get_fg_color (GtkWidget    *widget,
+                          GtkStateType  state,
+                          ClutterColor *color)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (state >= GTK_STATE_NORMAL &&
+                    state <= GTK_STATE_INSENSITIVE);
+  g_return_if_fail (color != NULL);
+
+  gtk_clutter_get_component (widget, GTK_RC_FG, state, color);
+}
+
+/**
+ * gtk_clutter_get_bg_color:
+ * @widget:
+ * @state:
+ * @color:
+ *
+ * FIXME
+ *
+ * Since: 0.8
+ */
+void
+gtk_clutter_get_bg_color (GtkWidget    *widget,
+                          GtkStateType  state,
+                          ClutterColor *color)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (state >= GTK_STATE_NORMAL &&
+                    state <= GTK_STATE_INSENSITIVE);
+  g_return_if_fail (color != NULL);
+
+  gtk_clutter_get_component (widget, GTK_RC_BG, state, color);
+}
+
+/**
+ * gtk_clutter_get_text_color:
+ * @widget:
+ * @state:
+ * @color:
+ *
+ * FIXME
+ *
+ * Since: 0.8
+ */
+void
+gtk_clutter_get_text_color (GtkWidget    *widget,
+                            GtkStateType  state,
+                            ClutterColor *color)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (state >= GTK_STATE_NORMAL &&
+                    state <= GTK_STATE_INSENSITIVE);
+  g_return_if_fail (color != NULL);
+
+  gtk_clutter_get_component (widget, GTK_RC_TEXT, state, color);
+}
+
+/**
+ * gtk_clutter_get_base_color:
+ * @widget:
+ * @state:
+ * @color:
+ *
+ * FIXME
+ *
+ * Since: 0.8
+ */
+void
+gtk_clutter_get_base_color (GtkWidget    *widget,
+                            GtkStateType  state,
+                            ClutterColor *color)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (state >= GTK_STATE_NORMAL &&
+                    state <= GTK_STATE_INSENSITIVE);
+  g_return_if_fail (color != NULL);
+
+  gtk_clutter_get_component (widget, GTK_RC_BASE, state, color);
+}
+