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+/* ATK - Accessibility Toolkit
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library 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 __ATK_COMPONENT_H__
+#define __ATK_COMPONENT_H__
+
+#include <atk/atkobject.h>
+#include <atk/atkutil.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ *AtkScrollType:
+ *@ATK_SCROLL_TOP_LEFT: Scroll the object vertically and horizontally to the top
+ *left corner of the window.
+ *@ATK_SCROLL_BOTTOM_RIGHT: Scroll the object vertically and horizontally to the
+ *bottom right corner of the window.
+ *@ATK_SCROLL_TOP_EDGE: Scroll the object vertically to the top edge of the
+ window.
+ *@ATK_SCROLL_BOTTOM_EDGE: Scroll the object vertically to the bottom edge of
+ *the window.
+ *@ATK_SCROLL_LEFT_EDGE: Scroll the object vertically and horizontally to the
+ *left edge of the window.
+ *@ATK_SCROLL_RIGHT_EDGE: Scroll the object vertically and horizontally to the
+ *right edge of the window.
+ *@ATK_SCROLL_ANYWHERE: Scroll the object vertically and horizontally so that
+ *as much as possible of the object becomes visible. The exact placement is
+ *determined by the application.
+ *
+ * Specifies where an object should be placed on the screen when using scroll_to.
+ **/
+typedef enum {
+ ATK_SCROLL_TOP_LEFT,
+ ATK_SCROLL_BOTTOM_RIGHT,
+ ATK_SCROLL_TOP_EDGE,
+ ATK_SCROLL_BOTTOM_EDGE,
+ ATK_SCROLL_LEFT_EDGE,
+ ATK_SCROLL_RIGHT_EDGE,
+ ATK_SCROLL_ANYWHERE
+} AtkScrollType;
+
+/*
+ * The AtkComponent interface should be supported by any object that is
+ * rendered on the screen. The interface provides the standard mechanism
+ * for an assistive technology to determine and set the graphical
+ * representation of an object.
+ */
+
+#define ATK_TYPE_COMPONENT (atk_component_get_type ())
+#define ATK_IS_COMPONENT(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_COMPONENT)
+#define ATK_COMPONENT(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_COMPONENT, AtkComponent)
+#define ATK_COMPONENT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_COMPONENT, AtkComponentIface))
+
+#ifndef _TYPEDEF_ATK_COMPONENT_
+#define _TYPEDEF_ATK_COMPONENT_
+typedef struct _AtkComponent AtkComponent;
+#endif
+typedef struct _AtkComponentIface AtkComponentIface;
+
+typedef void (*AtkFocusHandler) (AtkObject*, gboolean);
+
+typedef struct _AtkRectangle AtkRectangle;
+
+struct _AtkRectangle
+{
+ gint x;
+ gint y;
+ gint width;
+ gint height;
+};
+
+GType atk_rectangle_get_type (void);
+
+#define ATK_TYPE_RECTANGLE (atk_rectangle_get_type ())
+struct _AtkComponentIface
+{
+ GTypeInterface parent;
+
+ guint (* add_focus_handler) (AtkComponent *component,
+ AtkFocusHandler handler);
+
+ gboolean (* contains) (AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+
+ AtkObject* (* ref_accessible_at_point) (AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+ void (* get_extents) (AtkComponent *component,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coord_type);
+ void (* get_position) (AtkComponent *component,
+ gint *x,
+ gint *y,
+ AtkCoordType coord_type);
+ void (* get_size) (AtkComponent *component,
+ gint *width,
+ gint *height);
+ gboolean (* grab_focus) (AtkComponent *component);
+ void (* remove_focus_handler) (AtkComponent *component,
+ guint handler_id);
+ gboolean (* set_extents) (AtkComponent *component,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ AtkCoordType coord_type);
+ gboolean (* set_position) (AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+ gboolean (* set_size) (AtkComponent *component,
+ gint width,
+ gint height);
+
+ AtkLayer (* get_layer) (AtkComponent *component);
+ gint (* get_mdi_zorder) (AtkComponent *component);
+
+ /*
+ * signal handlers
+ */
+ void (* bounds_changed) (AtkComponent *component,
+ AtkRectangle *bounds);
+ gdouble (* get_alpha) (AtkComponent *component);
+
+ /*
+ * Scrolls this object so it becomes visible on the screen.
+ * Since ATK 2.30
+ */
+ gboolean (*scroll_to) (AtkComponent *component,
+ AtkScrollType type);
+
+ gboolean (*scroll_to_point) (AtkComponent *component,
+ AtkCoordType coords,
+ gint x,
+ gint y);
+};
+
+GType atk_component_get_type (void);
+
+/* convenience functions */
+
+guint atk_component_add_focus_handler (AtkComponent *component,
+ AtkFocusHandler handler);
+gboolean atk_component_contains (AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+AtkObject* atk_component_ref_accessible_at_point(AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+void atk_component_get_extents (AtkComponent *component,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coord_type);
+void atk_component_get_position (AtkComponent *component,
+ gint *x,
+ gint *y,
+ AtkCoordType coord_type);
+void atk_component_get_size (AtkComponent *component,
+ gint *width,
+ gint *height);
+AtkLayer atk_component_get_layer (AtkComponent *component);
+gint atk_component_get_mdi_zorder (AtkComponent *component);
+gboolean atk_component_grab_focus (AtkComponent *component);
+void atk_component_remove_focus_handler (AtkComponent *component,
+ guint handler_id);
+gboolean atk_component_set_extents (AtkComponent *component,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ AtkCoordType coord_type);
+gboolean atk_component_set_position (AtkComponent *component,
+ gint x,
+ gint y,
+ AtkCoordType coord_type);
+gboolean atk_component_set_size (AtkComponent *component,
+ gint width,
+ gint height);
+gdouble atk_component_get_alpha (AtkComponent *component);
+gboolean atk_component_scroll_to (AtkComponent *component,
+ AtkScrollType type);
+
+gboolean atk_component_scroll_to_point (AtkComponent *component,
+ AtkCoordType coords,
+ gint x,
+ gint y);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __ATK_COMPONENT_H__ */