/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _ACCFRAME_HXX
#define _ACCFRAME_HXX

#include <swrect.hxx>

#include <sal/types.h>
#include <tools/string.hxx>

#include <list>
#include <accfrmobj.hxx>

class SwAccessibleMap;
class SwFrm;
class ViewShell;
namespace sw { namespace access {
    class SwAccessibleChild;
}}

// Any method of this class must be called with an acquired solar mutex!

class SwAccessibleFrame
{
	SwRect maVisArea;
    const SwFrm* mpFrm;
    const sal_Bool mbIsInPagePreview;

protected:
    // --> OD 2007-06-29 #i77106#
    // method needs to be called by new class <SwAccessibleTableColHeaders>
    static sal_Int32 GetChildCount( SwAccessibleMap& rAccMap,
                                    const SwRect& rVisArea,
									const SwFrm *pFrm,
                                    sal_Bool bInPagePreview );
private:
    static sw::access::SwAccessibleChild GetChild( SwAccessibleMap& rAccMap,
                                                   const SwRect& rVisArea,
                                                   const SwFrm& rFrm,
                                                   sal_Int32& rPos,
                                                   sal_Bool bInPagePreview);

    static sal_Bool GetChildIndex( SwAccessibleMap& rAccMap,
                                   const SwRect& rVisArea,
                                   const SwFrm& rFrm,
                                   const sw::access::SwAccessibleChild& rChild,
                                   sal_Int32& rPos,
                                   sal_Bool bInPagePreview );

    static sw::access::SwAccessibleChild GetChildAtPixel( const SwRect& rVisArea,
                                                          const SwFrm& rFrm,
                                                          const Point& rPos,
                                                          sal_Bool bInPagePreview,
                                                          SwAccessibleMap& rAccMap );

    static void GetChildren( SwAccessibleMap& rAccMap,
                             const SwRect& rVisArea,
                             const SwFrm& rFrm,
                             ::std::list< sw::access::SwAccessibleChild >& rChildren,
                             sal_Bool bInPagePreview );

protected:

	sal_Bool IsEditable( ViewShell *pVSh ) const;

	sal_Bool IsOpaque( ViewShell *pVSh ) const;

    sal_Bool IsShowing( const SwAccessibleMap& rAccMap,
                        const sw::access::SwAccessibleChild& rFrmOrObj ) const;
	inline sal_Bool IsShowing( const SwRect& rFrm ) const;
    inline sal_Bool IsShowing( const SwAccessibleMap& rAccMap ) const;

    inline sal_Bool IsInPagePreview() const
    {
        return mbIsInPagePreview;
    }

    inline void ClearFrm()
    {
        mpFrm = 0;
    }

	SwAccessibleFrame( const SwRect& rVisArea,
					   const SwFrm *pFrm,
                       sal_Bool bIsPagePreview );
	virtual ~SwAccessibleFrame();

public:
	// Return the SwFrm this context is attached to.
    const SwFrm* GetFrm() const { return mpFrm; };

    static const SwFrm* GetParent( const sw::access::SwAccessibleChild& rFrmOrObj,
                                   sal_Bool bInPagePreview );

    sal_Int32 GetChildIndex( SwAccessibleMap& rAccMap,
                             const sw::access::SwAccessibleChild& rChild ) const;

protected:

	// Return the bounding box of the frame clipped to the vis area. If
	// no frame is specified, use this' frame.
    SwRect GetBounds( const SwAccessibleMap& rAccMap,
                      const SwFrm *pFrm = 0 );

	// Return the upper that has a context attached. This might be
	// another one than the immediate upper.
	inline const SwFrm *GetParent() const;

	// Return the lower count or the nth lower, there the lowers have a
	// not be same one as the SwFrm's lowers
    sal_Int32 GetChildCount( SwAccessibleMap& rAccMap ) const;
    sw::access::SwAccessibleChild GetChild( SwAccessibleMap& rAccMap,
                                            sal_Int32 nPos ) const;
    sw::access::SwAccessibleChild GetChildAtPixel( const Point& rPos,
                                                   SwAccessibleMap& rAccMap ) const;
    void GetChildren( SwAccessibleMap& rAccMap,
                      ::std::list< sw::access::SwAccessibleChild >& rChildren ) const;

    inline void SetVisArea( const SwRect& rNewVisArea )
    {
        maVisArea = rNewVisArea;
    }

    inline const SwRect& GetVisArea() const
    {
        return maVisArea;
    }


	String GetFormattedPageNumber() const;
};

inline sal_Bool SwAccessibleFrame::IsShowing( const SwRect& rFrm ) const
{
	return rFrm.IsOver( maVisArea );
}

inline sal_Bool SwAccessibleFrame::IsShowing( const SwAccessibleMap& rAccMap ) const
{
    sw::access::SwAccessibleChild aFrmOrObj( GetFrm() );
    return IsShowing( rAccMap, aFrmOrObj );
}

inline const SwFrm *SwAccessibleFrame::GetParent() const
{
    sw::access::SwAccessibleChild aFrmOrObj( GetFrm() );
	return GetParent( aFrmOrObj, IsInPagePreview()  );
}

#endif