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diff --git a/libgimpwidgets/gimpcolorbutton.h b/libgimpwidgets/gimpcolorbutton.h
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpcolorbutton.h
+ * Copyright (C) 1999-2001 Sven Neumann
+ *
+ * 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 3 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, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+/* This provides a button with a color preview. The preview
+ * can handle transparency by showing the checkerboard.
+ * On click, a color selector is opened, which is already
+ * fully functional wired to the preview button.
+ */
+
+#if !defined (__GIMP_WIDGETS_H_INSIDE__) && !defined (GIMP_WIDGETS_COMPILATION)
+#error "Only <libgimpwidgets/gimpwidgets.h> can be included directly."
+#endif
+
+#ifndef __GIMP_COLOR_BUTTON_H__
+#define __GIMP_COLOR_BUTTON_H__
+
+#include <libgimpwidgets/gimpbutton.h>
+
+G_BEGIN_DECLS
+
+
+#define GIMP_TYPE_COLOR_BUTTON (gimp_color_button_get_type ())
+#define GIMP_COLOR_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_COLOR_BUTTON, GimpColorButton))
+#define GIMP_COLOR_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_COLOR_BUTTON, GimpColorButtonClass))
+#define GIMP_IS_COLOR_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_COLOR_BUTTON))
+#define GIMP_IS_COLOR_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_COLOR_BUTTON))
+#define GIMP_COLOR_BUTTON_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_BUTTON, GimpColorButtonClass))
+
+
+typedef struct _GimpColorButtonClass GimpColorButtonClass;
+
+struct _GimpColorButton
+{
+ GimpButton parent_instance;
+
+ gchar *title;
+ gboolean continuous_update;
+
+ GtkWidget *color_area;
+ GtkWidget *dialog;
+
+ /*< private >*/
+ gpointer popup_menu;
+};
+
+struct _GimpColorButtonClass
+{
+ GimpButtonClass parent_class;
+
+ /* signals */
+ void (* color_changed) (GimpColorButton *button);
+
+ /* virtual functions */
+ GType (* get_action_type) (GimpColorButton *button);
+
+ /* Padding for future expansion */
+ void (* _gimp_reserved2) (void);
+ void (* _gimp_reserved3) (void);
+ void (* _gimp_reserved4) (void);
+};
+
+
+GType gimp_color_button_get_type (void) G_GNUC_CONST;
+
+GtkWidget * gimp_color_button_new (const gchar *title,
+ gint width,
+ gint height,
+ const GimpRGB *color,
+ GimpColorAreaType type);
+
+void gimp_color_button_set_title (GimpColorButton *button,
+ const gchar *title);
+const gchar * gimp_color_button_get_title (GimpColorButton *button);
+
+void gimp_color_button_set_color (GimpColorButton *button,
+ const GimpRGB *color);
+void gimp_color_button_get_color (GimpColorButton *button,
+ GimpRGB *color);
+
+gboolean gimp_color_button_has_alpha (GimpColorButton *button);
+void gimp_color_button_set_type (GimpColorButton *button,
+ GimpColorAreaType type);
+
+gboolean gimp_color_button_get_update (GimpColorButton *button);
+void gimp_color_button_set_update (GimpColorButton *button,
+ gboolean continuous);
+
+void gimp_color_button_set_color_config (GimpColorButton *button,
+ GimpColorConfig *config);
+
+GtkUIManager * gimp_color_button_get_ui_manager (GimpColorButton *button);
+
+
+G_END_DECLS
+
+#endif /* __GIMP_COLOR_BUTTON_H__ */