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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/


#ifndef _SC_ACCESSIBLEDOCUMENT_HXX
#define _SC_ACCESSIBLEDOCUMENT_HXX

#include "AccessibleDocumentBase.hxx"
#include "viewdata.hxx"
#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
#include <com/sun/star/view/XSelectionChangeListener.hpp>
#include <cppuhelper/implbase2.hxx>
#include <svx/IAccessibleViewForwarder.hxx>

class ScTabViewShell;
class ScAccessibleSpreadsheet;
class ScChildrenShapes;
class ScAccessibleEditObject;

namespace accessibility
{
    class AccessibleShape;
}
namespace utl
{
    class AccessibleRelationSetHelper;
}

/**	@descr
        This base class provides an implementation of the
        <code>AccessibleContext</code> service.
*/

typedef cppu::ImplHelper2< ::com::sun::star::accessibility::XAccessibleSelection,
                            ::com::sun::star::view::XSelectionChangeListener >
                    ScAccessibleDocumentImpl;

class ScAccessibleDocument
    :	public ScAccessibleDocumentBase,
        public ScAccessibleDocumentImpl,
        public accessibility::IAccessibleViewForwarder
{
public:
    //=====  internal  ========================================================
    ScAccessibleDocument(
        const ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible>& rxParent,
        ScTabViewShell* pViewShell,
        ScSplitPos eSplitPos);
    
    virtual void Init();


    DECL_LINK( WindowChildEventListener, VclSimpleEvent* );
protected:
    virtual ~ScAccessibleDocument(void);

    using ScAccessibleDocumentBase::IsDefunc;

public:

     virtual void SAL_CALL disposing();

   ///=====  SfxListener  =====================================================

    virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint );

    ///=====  XInterface  =====================================================

    virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( 
        ::com::sun::star::uno::Type const & rType ) 
        throw (::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL acquire() throw ();
       
    virtual void SAL_CALL release() throw ();

    ///=====  XAccessibleComponent  ============================================

    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >
        SAL_CALL getAccessibleAtPoint(
        const ::com::sun::star::awt::Point& rPoint )
        throw (::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL grabFocus(  )
        throw (::com::sun::star::uno::RuntimeException);

    ///=====  XAccessibleContext  ==============================================

    ///	Return the number of currently visible children.
    virtual sal_Int32 SAL_CALL
        getAccessibleChildCount(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///	Return the specified child or NULL if index is invalid.
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
        getAccessibleChild(sal_Int32 nIndex)
        throw (::com::sun::star::uno::RuntimeException,
                ::com::sun::star::lang::IndexOutOfBoundsException);

    ///	Return the set of current states.
    virtual ::com::sun::star::uno::Reference<
            ::com::sun::star::accessibility::XAccessibleStateSet> SAL_CALL
        getAccessibleStateSet(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///=====  XAccessibleSelection  ===========================================

    virtual void SAL_CALL 
        selectAccessibleChild( sal_Int32 nChildIndex ) 
        throw (::com::sun::star::lang::IndexOutOfBoundsException, 
        ::com::sun::star::uno::RuntimeException);

    virtual sal_Bool SAL_CALL 
        isAccessibleChildSelected( sal_Int32 nChildIndex ) 
        throw (::com::sun::star::lang::IndexOutOfBoundsException,
        ::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL 
        clearAccessibleSelection(  ) 
        throw (::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL 
        selectAllAccessibleChildren(  ) 
        throw (::com::sun::star::uno::RuntimeException);

    virtual sal_Int32 SAL_CALL 
        getSelectedAccessibleChildCount(  ) 
        throw (::com::sun::star::uno::RuntimeException);

    virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible > SAL_CALL 
        getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) 
        throw (::com::sun::star::lang::IndexOutOfBoundsException,
        ::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL 
        deselectAccessibleChild( sal_Int32 nChildIndex ) 
        throw (::com::sun::star::lang::IndexOutOfBoundsException,
        ::com::sun::star::uno::RuntimeException);

    ///=====  XSelectionListener  =============================================

    virtual void SAL_CALL selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) 
        throw (::com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source )
        throw (::com::sun::star::uno::RuntimeException);

    ///=====  XServiceInfo  ===================================================

    /**	Returns an identifier for the implementation of this object.
    */
    virtual ::rtl::OUString SAL_CALL
        getImplementationName(void)
        throw (::com::sun::star::uno::RuntimeException);

    /** Returns a list of all supported services.
    */
    virtual ::com::sun::star::uno::Sequence< ::rtl::OUString> SAL_CALL
        getSupportedServiceNames(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///=====  XTypeProvider  ===================================================

    /// returns the possible types
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL 
        getTypes() 
        throw (::com::sun::star::uno::RuntimeException);

    /**	Returns a implementation id.
    */
    virtual ::com::sun::star::uno::Sequence<sal_Int8> SAL_CALL
        getImplementationId(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///=====  IAccessibleViewForwarder  ========================================

    /** This method informs you about the state of the forwarder.  Do not
        use it when the returned value is <false/>.

        @return
            Return <true/> if the view forwarder is valid and <false/> else.
     */
    virtual sal_Bool IsValid (void) const;

    /** Returns the area of the underlying document that is visible in the
    * corresponding window.

        @return 
            The rectangle of the visible part of the document. The values
            are, contrary to the base class, in internal coordinates.
     */
    virtual Rectangle GetVisibleArea() const;

    /** Transform the specified point from internal coordinates to an
        absolute screen position.

        @param rPoint
            Point in internal coordinates.

        @return 
            The same point but in screen coordinates relative to the upper
            left corner of the (current) screen.
     */
    virtual Point LogicToPixel (const Point& rPoint) const;

    /** Transform the specified size from internal coordinates to a screen
    * oriented pixel size.

        @param rSize
            Size in internal coordinates.

        @return 
            The same size but in screen coordinates.
     */
    virtual Size LogicToPixel (const Size& rSize) const;

    /** Transform the specified point from absolute screen coordinates to
        internal coordinates.

        @param rPoint
            Point in screen coordinates relative to the upper left corner of
            the (current) screen.

        @return 
            The same point but in internal coordinates.
     */
    virtual Point PixelToLogic (const Point& rPoint) const;

    /** Transform the specified size from screen coordinates to internal
        coordinates.

        @param rSize
            Size in screen coordinates.

        @return
            The same size but in internal coordinates.
     */
    virtual Size PixelToLogic (const Size& rSize) const;

    ///======== internal =====================================================
    
    utl::AccessibleRelationSetHelper* GetRelationSet(const ScAddress* pAddress) const;

    ::com::sun::star::uno::Reference
        < ::com::sun::star::accessibility::XAccessible >
        GetAccessibleSpreadsheet();

protected:
    ///	Return this object's description.
    virtual ::rtl::OUString SAL_CALL
        createAccessibleDescription(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///	Return the object's current name.
    virtual ::rtl::OUString SAL_CALL
        createAccessibleName(void)
        throw (::com::sun::star::uno::RuntimeException);

    ///	Return the object's current bounding box relative to the desktop.
    virtual Rectangle GetBoundingBoxOnScreen(void) const
        throw (::com::sun::star::uno::RuntimeException);

    ///	Return the object's current bounding box relative to the parent object.
    virtual Rectangle GetBoundingBox(void) const
        throw (::com::sun::star::uno::RuntimeException);

private:
    ScTabViewShell*	mpViewShell;
    ScSplitPos		meSplitPos;
    ScAccessibleSpreadsheet* mpAccessibleSpreadsheet;
    ScChildrenShapes* mpChildrenShapes;
    ScAccessibleEditObject* mpTempAccEdit;
    com::sun::star::uno::Reference<com::sun::star::accessibility::XAccessible> mxTempAcc;
    Rectangle maVisArea;
    sal_Bool mbCompleteSheetSelected;

public:
    SCTAB getVisibleTable() const; // use it in ScChildrenShapes

private:
    void FreeAccessibleSpreadsheet();

    sal_Bool IsTableSelected() const;

    sal_Bool IsDefunc(
        const com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessibleStateSet>& rxParentStates);
    sal_Bool IsEditable(
        const com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessibleStateSet>& rxParentStates);

    void AddChild(const com::sun::star::uno::Reference<com::sun::star::accessibility::XAccessible>& xAcc, sal_Bool bFireEvent);
    void RemoveChild(const com::sun::star::uno::Reference<com::sun::star::accessibility::XAccessible>& xAcc, sal_Bool bFireEvent);

    rtl::OUString GetCurrentCellName() const;
    rtl::OUString GetCurrentCellDescription() const;

    Rectangle GetVisibleArea_Impl() const;
};


#endif