485 lines
24 KiB
C++
485 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SVX_ACCESSIBLESHAPE_HXX
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#define INCLUDED_SVX_ACCESSIBLESHAPE_HXX
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#include <editeng/AccessibleContextBase.hxx>
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#include <editeng/AccessibleComponentBase.hxx>
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#include <svx/IAccessibleViewForwarderListener.hxx>
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#include <com/sun/star/document/XEventListener.hpp>
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#include <com/sun/star/accessibility/XAccessible.hpp>
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#include <com/sun/star/accessibility/XAccessibleExtendedComponent.hpp>
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#include <com/sun/star/accessibility/AccessibleRole.hpp>
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#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
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#include <com/sun/star/accessibility/XAccessibleText.hpp>
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#include <com/sun/star/accessibility/XAccessibleExtendedAttributes.hpp>
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#include <com/sun/star/accessibility/XAccessibleGroupPosition.hpp>
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#include <com/sun/star/accessibility/XAccessibleHyperlink.hpp>
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#include <com/sun/star/accessibility/XAccessibleHypertext.hpp>
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#include <com/sun/star/drawing/XShape.hpp>
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#include <com/sun/star/lang/XEventListener.hpp>
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#include <com/sun/star/lang/XUnoTunnel.hpp>
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#include <svx/AccessibleTextHelper.hxx>
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#include <svx/svxdllapi.h>
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#include <svx/ChildrenManager.hxx>
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class SdrObject;
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namespace accessibility {
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class AccessibleShapeInfo;
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class AccessibleShapeTreeInfo;
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class IAccessibleParent;
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/** This base class provides a base implementation for all shapes. For more
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detailed documentation about the methods refer to the descriptions of
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the implemented interfaces. These are, among others,
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XAccessible, <type>XAccessibleContext</type>,
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XAccessibleComponent and
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XAccessibleExtendedComponent.
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<p>The children of a shape can stem from two sources which, in case of
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SVX and SD shapes, are mutually exclusive. This implementation,
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however, handles both simultaniously to cope with future extensions or
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shapes from other projects.
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<ul>
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<li>If this shape is a group shape, i.e. a
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SvxShapeGroup or a <type>Svx3DSceneObject</type>, it
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can have nested shapes.</li>
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<li>If this shape is a descendant from SvxShapeText
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then the text paragraphs are its children.</li>
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</ul>
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</p>
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<p>Accessible shapes do not listen for disposing() calls of the UNO
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shapes they make accessible. This is the task of their owner, usually a
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container, who can then call dispose() at the accessible object.</p>
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*/
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class SVX_DLLPUBLIC AccessibleShape
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: public AccessibleContextBase,
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public AccessibleComponentBase,
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public ::com::sun::star::accessibility::XAccessibleSelection,
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public ::com::sun::star::accessibility::XAccessibleExtendedAttributes,
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public ::com::sun::star::accessibility::XAccessibleGroupPosition,
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public com::sun::star::accessibility::XAccessibleHypertext,
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public IAccessibleViewForwarderListener,
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public ::com::sun::star::document::XEventListener,
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public ::com::sun::star::lang::XUnoTunnel
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{
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public:
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//===== internal ========================================================
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/** Create a new accessible object that makes the given shape accessible.
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@param rShapeInfo
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This object contains all information specific to the new
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accessible shape. That are e.g. the shape to be made accessible
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and the accessible object that will become the parent of the new
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object.
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@param rShapeTreeInfo
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Bundel of information passed to this shape and all of its desendants.
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@attention
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Always call the <member>init</member> method after creating a
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new accessible shape. This is one way to overcome the potential
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problem of registering the new object with e.g. event
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broadcasters. That would delete the new object if a broadcaster
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would not keep a strong reference to the new object.
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*/
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AccessibleShape (
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const AccessibleShapeInfo& rShapeInfo,
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const AccessibleShapeTreeInfo& rShapeTreeInfo);
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//Solution: Overwrite the object's current name.
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virtual OUString SAL_CALL getAccessibleName (void) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual OUString SAL_CALL getAccessibleDescription() throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet> SAL_CALL getAccessibleRelationSet (void) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccessibleSelection ============================================
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virtual void SAL_CALL selectAccessibleChild(
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sal_Int32 nChildIndex )
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throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
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::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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virtual sal_Bool SAL_CALL isAccessibleChildSelected(
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sal_Int32 nChildIndex )
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throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
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::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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virtual void SAL_CALL clearAccessibleSelection( )
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throw ( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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virtual void SAL_CALL selectAllAccessibleChildren( )
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throw ( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount( )
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throw ( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
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sal_Int32 nSelectedChildIndex )
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throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
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::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual void SAL_CALL deselectAccessibleChild(
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sal_Int32 nSelectedChildIndex )
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throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
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::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
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// ====== XAccessibleExtendedAttributes =====================================
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virtual ::com::sun::star::uno::Any SAL_CALL getExtendedAttributes()
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throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE ;
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/// Return this object's role.
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virtual sal_Int16 SAL_CALL getAccessibleRole (void) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccessibleGroupPosition =========================================
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virtual ::com::sun::star::uno::Sequence< sal_Int32 > SAL_CALL
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getGroupPosition( const ::com::sun::star::uno::Any& rAny )
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual OUString SAL_CALL getObjectLink( const ::com::sun::star::uno::Any& accoject )
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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/** The destructor releases its children manager and text engine if
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still existent. These are responsible to send appropriate events.
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*/
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virtual ~AccessibleShape (void);
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/** Initialize a new shape. See the documentation of the constructor
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for the reason of this method's existence.
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*/
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virtual void Init (void);
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/** Compare two accessible shapes using object identity
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@param rShape
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This is the second operand.
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@return
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Returns true if both shapes are the same object.
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*/
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virtual bool operator== (const AccessibleShape& rShape);
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/** Set the specified state. If the state is <const>FOCUSED</const>
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then, additionally to the inherited functionality, the focus
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listeners registered with the XAccessibleComponent
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interface are called (if that state really changes).
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@param aState
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The state to turn on.
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@return
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The returned flag indicates whether the specified state has been
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changed (<TRUE/>), i.e. it has formerly not been set.
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*/
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virtual bool SetState (sal_Int16 aState) SAL_OVERRIDE;
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/** Reset the specified state. If the state is <const>FOCUSED</const>
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then, additionally to the inherited functionality, the focus
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listeners registered with the XAccessibleComponent
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interface are called (if that state really changes).
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@param aState
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The state to turn off.
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@return
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The returned flag indicates whether the specified state has been
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changed (<TRUE/>), i.e. it has formerly been set.
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*/
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virtual bool ResetState (sal_Int16 aState) SAL_OVERRIDE;
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/** Return the state of the specified state. Take the
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<const>FOCUSED</const> state from the accessible edit engine.
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@param aState
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The state for which to return its value.
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@return
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A value of <TRUE/> indicates that the state is set. A <FALSE/>
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value indicates an unset state or the inability to access the
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entity that manages the state set.
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*/
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bool GetState (sal_Int16 aState);
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//===== XAccessibleContext ==============================================
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/// Return the number of currently visible children.
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virtual sal_Int32 SAL_CALL
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getAccessibleChildCount (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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/** Return the specified child.
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@param nIndex
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Index of the requested child.
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@return
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Reference of the requested child which is the accessible object
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of a visible shape.
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@raises IndexOutOfBoundsException
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Throws an exception if the index is not valid.
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*/
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible> SAL_CALL
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getAccessibleChild (sal_Int32 nIndex)
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throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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/// Return the set of current states.
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessibleStateSet> SAL_CALL
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getAccessibleStateSet (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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/// Return this objects index among the parents children.
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virtual sal_Int32 SAL_CALL
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getAccessibleIndexInParent (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccessibleComponent ============================================
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible > SAL_CALL
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getAccessibleAtPoint (const ::com::sun::star::awt::Point& aPoint)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::awt::Point SAL_CALL getLocation (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::awt::Size SAL_CALL getSize (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getForeground (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getBackground (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccessibleEventBroadcaster =====================================
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/** This call is forwarded to a) the base class and b) to the
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accessible edit engine if it is present.
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@param rxListener
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This listener is informed about accessibility events.
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*/
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virtual void SAL_CALL
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addAccessibleEventListener (
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const ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessibleEventListener >& rxListener)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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/** This call is forwarded to a) the base class and b) to the
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accessible edit engine if it is present.
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@param rxListener
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This listener will not be informed about accessibility events
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anymore.
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*/
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virtual void SAL_CALL
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removeAccessibleEventListener (
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const ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessibleEventListener >& rxListener)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XInterface ======================================================
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virtual com::sun::star::uno::Any SAL_CALL
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queryInterface (const com::sun::star::uno::Type & rType)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual void SAL_CALL
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acquire (void)
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throw () SAL_OVERRIDE;
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virtual void SAL_CALL
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release (void)
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throw () SAL_OVERRIDE;
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//===== XServiceInfo ====================================================
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/** Returns an identifier for the implementation of this object.
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*/
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virtual OUString SAL_CALL
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getImplementationName (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::uno::Sequence< OUString> SAL_CALL
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getSupportedServiceNames (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XTypeProvider ===================================================
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> SAL_CALL
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getTypes (void)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== IAccessibleViewForwarderListener ================================
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virtual void ViewForwarderChanged (ChangeType aChangeType,
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const IAccessibleViewForwarder* pViewForwarder) SAL_OVERRIDE;
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//===== lang::XEventListener ============================================
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/** Listen for disposing events of the model. The accessible shape
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remains functional when this happens.
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*/
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virtual void SAL_CALL
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disposing (const ::com::sun::star::lang::EventObject& Source)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== document::XEventListener ========================================
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virtual void SAL_CALL
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notifyEvent (const ::com::sun::star::document::EventObject& rEventObject)
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throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XUnoTunnel ========================================================
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static const ::com::sun::star::uno::Sequence< sal_Int8 >& getUnoTunnelImplementationId() throw();
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static AccessibleShape* getImplementation( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxIFace ) throw();
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sal_Int64 SAL_CALL getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& _rIdentifier ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccessibleHypertext ========================================================
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virtual sal_Int32 SAL_CALL getHyperLinkCount() throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleHyperlink >
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SAL_CALL getHyperLink( sal_Int32 nLinkIndex )
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throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getHyperLinkIndex( sal_Int32 nCharIndex )
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throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== XAccesibleText ==================================================
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virtual sal_Int32 SAL_CALL getCaretPosition( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Bool SAL_CALL setCaretPosition( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;//Shen Zhen Jie changed sal_Unicode to sal_uInt32; change back to sal_Unicode
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const ::com::sun::star::uno::Sequence< OUString >& aRequestedAttributes ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getCharacterCount( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getIndexAtPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual OUString SAL_CALL getSelectedText( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getSelectionStart( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Int32 SAL_CALL getSelectionEnd( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual OUString SAL_CALL getText( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
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//===== Misc ========================================================
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::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >
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GetXShape() { return( mxShape );}
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/** set the index _nIndex at the accessible shape
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@param _nIndex
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The new index in parent.
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*/
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inline void setIndexInParent(sal_Int32 _nIndex) { m_nIndexInParent = _nIndex; }
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protected:
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/// Children manager. May be empty if there are no children.
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ChildrenManager* mpChildrenManager;
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/// Reference to the actual shape.
|
|
::com::sun::star::uno::Reference<
|
|
::com::sun::star::drawing::XShape> mxShape;
|
|
|
|
/** Bundle of information passed to all shapes in a document tree.
|
|
*/
|
|
AccessibleShapeTreeInfo maShapeTreeInfo;
|
|
|
|
/** Index that is appended to the object's name to disambiguate between
|
|
different names with the otherwise same name.
|
|
*/
|
|
long mnIndex;
|
|
|
|
/** the index in parent.
|
|
*/
|
|
sal_Int32 m_nIndexInParent;
|
|
|
|
/** The accessible text engine. May be NULL if it can not be created.
|
|
*/
|
|
AccessibleTextHelper* mpText;
|
|
|
|
/** This object can be used to modify the child list of our parent.
|
|
*/
|
|
IAccessibleParent* mpParent;
|
|
|
|
/** This object can be removed when we have an extra interface to ask if the shape is selected
|
|
*/
|
|
SdrObject* m_pShape;
|
|
|
|
/** This method is called from the component helper base class while
|
|
disposing.
|
|
*/
|
|
virtual void SAL_CALL disposing (void) SAL_OVERRIDE;
|
|
|
|
/** Create a base name string that contains the accessible name.
|
|
*/
|
|
virtual OUString
|
|
CreateAccessibleBaseName (void)
|
|
throw (::com::sun::star::uno::RuntimeException);
|
|
|
|
/** Create a unique name string that contains the accessible name. The
|
|
name consists of the base name and the index.
|
|
*/
|
|
virtual OUString
|
|
CreateAccessibleName (void)
|
|
throw (::com::sun::star::uno::RuntimeException) SAL_OVERRIDE;
|
|
|
|
/// Create a description string that contains the accessible description.
|
|
virtual OUString
|
|
CreateAccessibleDescription (void)
|
|
throw (::com::sun::star::uno::RuntimeException) SAL_OVERRIDE;
|
|
virtual OUString
|
|
GetFullAccessibleName(AccessibleShape *shape)
|
|
throw (::com::sun::star::uno::RuntimeException);
|
|
virtual OUString GetStyle();
|
|
void UpdateDocumentAllSelState(::com::sun::star::uno::Reference<
|
|
::com::sun::star::accessibility::XAccessibleStateSet > &xStateSet);
|
|
/** Update the <const>OPAQUE</const> and <const>SELECTED</const> state.
|
|
*/
|
|
virtual void UpdateStates (void);
|
|
|
|
private:
|
|
/** Don't use the default constructor. Use the public constructor that
|
|
takes the original shape and the parent as arguments instead.
|
|
*/
|
|
SVX_DLLPRIVATE explicit AccessibleShape (void);
|
|
/// Don't use the copy constructor. Is there any use for it?
|
|
SVX_DLLPRIVATE explicit AccessibleShape (const AccessibleShape&);
|
|
/// Don't use the assignment operator. Do we need this?
|
|
SVX_DLLPRIVATE AccessibleShape& operator= (const AccessibleShape&);
|
|
//Old accessible name
|
|
OUString aAccName;
|
|
|
|
/** Call this method when the title, name, or description of the mxShape
|
|
member (may) have been changed.
|
|
This method adapts the name and description members of the
|
|
AccessibleContextBase base class.
|
|
*/
|
|
void UpdateNameAndDescription (void);
|
|
};
|
|
|
|
} // end of namespace accessibility
|
|
|
|
#endif
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|