1 files changed, 124 insertions, 0 deletions
diff --git a/capplets/display/scrollarea.h b/capplets/display/scrollarea.h
new file mode 100644
index 00000000..d1695fad
--- /dev/null
+++ b/capplets/display/scrollarea.h
@@ -0,0 +1,124 @@
+/* Copyright 2006, 2007, 2008, Soren Sandmann <[email protected]>
+ *
+ * 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.
+ */
+#include <cairo.h>
+#include <gtk/gtk.h>
+
+#define FOO_TYPE_SCROLL_AREA            (foo_scroll_area_get_type ())
+#define FOO_SCROLL_AREA(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_SCROLL_AREA, FooScrollArea))
+#define FOO_SCROLL_AREA_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
+#define FOO_IS_SCROLL_AREA(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_SCROLL_AREA))
+#define FOO_IS_SCROLL_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  FOO_TYPE_SCROLL_AREA))
+#define FOO_SCROLL_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
+
+typedef struct FooScrollArea FooScrollArea;
+typedef struct FooScrollAreaClass FooScrollAreaClass;
+typedef struct FooScrollAreaPrivate FooScrollAreaPrivate;
+typedef struct FooScrollAreaEvent FooScrollAreaEvent;
+
+typedef enum
+{
+    FOO_BUTTON_PRESS,
+    FOO_BUTTON_RELEASE,
+    FOO_MOTION
+} FooScrollAreaEventType;
+
+struct FooScrollAreaEvent
+{
+    FooScrollAreaEventType	type;
+    int				x;
+    int				y;
+};
+
+typedef void (* FooScrollAreaEventFunc) (FooScrollArea      *area,
+					 FooScrollAreaEvent *event,
+					 gpointer            data);
+
+struct FooScrollArea
+{
+    GtkContainer parent_instance;
+
+    FooScrollAreaPrivate *priv;
+};
+
+struct FooScrollAreaClass
+{
+    GtkContainerClass parent_class;
+
+    void (*set_scroll_adjustments) (FooScrollArea *scroll_area,
+				    GtkAdjustment *hadjustment,
+				    GtkAdjustment *vadjustment);
+
+    void (*viewport_changed) (FooScrollArea *scroll_area,
+			      GdkRectangle  *old_viewport,
+			      GdkRectangle  *new_viewport);
+
+    void (*paint) (FooScrollArea *scroll_area,
+		   cairo_t       *cr,
+		   GdkRectangle  *extents,
+		   GdkRegion     *region);
+};
+
+GType foo_scroll_area_get_type (void);
+
+FooScrollArea *foo_scroll_area_new (void);
+
+/* Set the requisition for the widget. */
+void	      foo_scroll_area_set_min_size (FooScrollArea *scroll_area,
+					    int		   min_width,
+					    int            min_height);
+
+/* Set how much of the canvas can be scrolled into view */
+void	      foo_scroll_area_set_size (FooScrollArea	       *scroll_area,
+					int			width,
+					int			height);
+void	      foo_scroll_area_set_size_fixed_y (FooScrollArea  *scroll_area,
+						int		width,
+						int		height,
+						int		old_y,
+						int		new_y);
+void	      foo_scroll_area_set_viewport_pos (FooScrollArea  *scroll_area,
+						int		x,
+						int		y);
+void	      foo_scroll_area_get_viewport (FooScrollArea *scroll_area,
+					    GdkRectangle  *viewport);
+void          foo_scroll_area_add_input_from_stroke (FooScrollArea           *scroll_area,
+						     cairo_t	                *cr,
+						     FooScrollAreaEventFunc   func,
+						     gpointer                 data);
+void          foo_scroll_area_add_input_from_fill (FooScrollArea *scroll_area,
+						      cairo_t	      *cr,
+						      FooScrollAreaEventFunc func,
+						      gpointer       data);
+void          foo_scroll_area_invalidate_region (FooScrollArea *area,
+						 GdkRegion     *region);
+void	      foo_scroll_area_invalidate (FooScrollArea *scroll_area);
+void	      foo_scroll_area_invalidate_rect (FooScrollArea *scroll_area,
+					       int	      x,
+					       int	      y,
+					       int	      width,
+					       int	      height);
+void foo_scroll_area_begin_grab (FooScrollArea *scroll_area,
+				 FooScrollAreaEventFunc func,
+				 gpointer       input_data);
+void foo_scroll_area_end_grab (FooScrollArea *scroll_area);
+gboolean foo_scroll_area_is_grabbed (FooScrollArea *scroll_area);
+
+void foo_scroll_area_begin_auto_scroll (FooScrollArea *scroll_area);
+void foo_scroll_area_auto_scroll (FooScrollArea *scroll_area,
+				  FooScrollAreaEvent *event);
+void foo_scroll_area_end_auto_scroll (FooScrollArea *scroll_area);