зеркало из https://github.com/mozilla/gecko-dev.git
222 строки
11 KiB
C
222 строки
11 KiB
C
/* ATK - Accessibility Toolkit
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* Copyright 2001 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ATK_COMPONENT_H__
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#define __ATK_COMPONENT_H__
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#include <atk/atkobject.h>
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#include <atk/atkutil.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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*AtkScrollType:
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*@ATK_SCROLL_TOP_LEFT: Scroll the object vertically and horizontally to the top
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*left corner of the window.
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*@ATK_SCROLL_BOTTOM_RIGHT: Scroll the object vertically and horizontally to the
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*bottom right corner of the window.
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*@ATK_SCROLL_TOP_EDGE: Scroll the object vertically to the top edge of the
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window.
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*@ATK_SCROLL_BOTTOM_EDGE: Scroll the object vertically to the bottom edge of
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*the window.
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*@ATK_SCROLL_LEFT_EDGE: Scroll the object vertically and horizontally to the
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*left edge of the window.
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*@ATK_SCROLL_RIGHT_EDGE: Scroll the object vertically and horizontally to the
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*right edge of the window.
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*@ATK_SCROLL_ANYWHERE: Scroll the object vertically and horizontally so that
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*as much as possible of the object becomes visible. The exact placement is
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*determined by the application.
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*
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* Specifies where an object should be placed on the screen when using scroll_to.
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**/
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typedef enum {
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ATK_SCROLL_TOP_LEFT,
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ATK_SCROLL_BOTTOM_RIGHT,
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ATK_SCROLL_TOP_EDGE,
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ATK_SCROLL_BOTTOM_EDGE,
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ATK_SCROLL_LEFT_EDGE,
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ATK_SCROLL_RIGHT_EDGE,
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ATK_SCROLL_ANYWHERE
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} AtkScrollType;
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/*
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* The AtkComponent interface should be supported by any object that is
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* rendered on the screen. The interface provides the standard mechanism
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* for an assistive technology to determine and set the graphical
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* representation of an object.
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*/
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#define ATK_TYPE_COMPONENT (atk_component_get_type ())
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#define ATK_IS_COMPONENT(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_COMPONENT)
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#define ATK_COMPONENT(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_COMPONENT, AtkComponent)
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#define ATK_COMPONENT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_COMPONENT, AtkComponentIface))
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#ifndef _TYPEDEF_ATK_COMPONENT_
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#define _TYPEDEF_ATK_COMPONENT_
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typedef struct _AtkComponent AtkComponent;
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#endif
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typedef struct _AtkComponentIface AtkComponentIface;
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typedef void (*AtkFocusHandler) (AtkObject*, gboolean);
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typedef struct _AtkRectangle AtkRectangle;
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struct _AtkRectangle
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{
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gint x;
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gint y;
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gint width;
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gint height;
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};
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GType atk_rectangle_get_type (void);
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#define ATK_TYPE_RECTANGLE (atk_rectangle_get_type ())
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struct _AtkComponentIface
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{
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GTypeInterface parent;
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guint (* add_focus_handler) (AtkComponent *component,
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AtkFocusHandler handler);
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gboolean (* contains) (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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AtkObject* (* ref_accessible_at_point) (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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void (* get_extents) (AtkComponent *component,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coord_type);
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void (* get_position) (AtkComponent *component,
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gint *x,
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gint *y,
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AtkCoordType coord_type);
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void (* get_size) (AtkComponent *component,
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gint *width,
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gint *height);
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gboolean (* grab_focus) (AtkComponent *component);
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void (* remove_focus_handler) (AtkComponent *component,
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guint handler_id);
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gboolean (* set_extents) (AtkComponent *component,
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gint x,
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gint y,
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gint width,
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gint height,
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AtkCoordType coord_type);
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gboolean (* set_position) (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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gboolean (* set_size) (AtkComponent *component,
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gint width,
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gint height);
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AtkLayer (* get_layer) (AtkComponent *component);
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gint (* get_mdi_zorder) (AtkComponent *component);
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/*
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* signal handlers
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*/
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void (* bounds_changed) (AtkComponent *component,
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AtkRectangle *bounds);
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gdouble (* get_alpha) (AtkComponent *component);
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/*
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* Scrolls this object so it becomes visible on the screen.
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* Since ATK 2.30
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*/
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gboolean (*scroll_to) (AtkComponent *component,
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AtkScrollType type);
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gboolean (*scroll_to_point) (AtkComponent *component,
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AtkCoordType coords,
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gint x,
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gint y);
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};
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GType atk_component_get_type (void);
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/* convenience functions */
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guint atk_component_add_focus_handler (AtkComponent *component,
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AtkFocusHandler handler);
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gboolean atk_component_contains (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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AtkObject* atk_component_ref_accessible_at_point(AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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void atk_component_get_extents (AtkComponent *component,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coord_type);
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void atk_component_get_position (AtkComponent *component,
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gint *x,
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gint *y,
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AtkCoordType coord_type);
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void atk_component_get_size (AtkComponent *component,
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gint *width,
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gint *height);
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AtkLayer atk_component_get_layer (AtkComponent *component);
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gint atk_component_get_mdi_zorder (AtkComponent *component);
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gboolean atk_component_grab_focus (AtkComponent *component);
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void atk_component_remove_focus_handler (AtkComponent *component,
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guint handler_id);
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gboolean atk_component_set_extents (AtkComponent *component,
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gint x,
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gint y,
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gint width,
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gint height,
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AtkCoordType coord_type);
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gboolean atk_component_set_position (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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gboolean atk_component_set_size (AtkComponent *component,
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gint width,
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gint height);
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gdouble atk_component_get_alpha (AtkComponent *component);
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gboolean atk_component_scroll_to (AtkComponent *component,
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AtkScrollType type);
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gboolean atk_component_scroll_to_point (AtkComponent *component,
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AtkCoordType coords,
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gint x,
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gint y);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __ATK_COMPONENT_H__ */
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