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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__ */
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