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 * 
 * 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.
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 *************************************************************/


#ifndef _SWPVIEW_HXX
#define _SWPVIEW_HXX

#include <tools/link.hxx>
#include <vcl/window.hxx>
#include <sfx2/viewfrm.hxx>
#include <sfx2/viewfac.hxx>
#include <sfx2/viewsh.hxx>
#include <svx/zoomitem.hxx>
#include "swdllapi.h"
#include "shellid.hxx"

class SwViewOption;
class SwDocShell;
class SwScrollbar;
class ViewShell;
class SwPagePreView;
class ImageButton;
class Button;
class SwRect;
class DataChangedEvent;
class CommandEvent;
class SvtAccessibilityOptions;
// OD 12.12.2002 #103492#
class SwPagePreviewLayout;

// OD 24.03.2003 #108282# - delete member <mnVirtPage> and its accessor.
class SwPagePreViewWin : public Window
{
    ViewShell*          mpViewShell;
    sal_uInt16              mnSttPage;
    sal_uInt8                mnRow, mnCol;
    Size                maPxWinSize;
    Fraction            maScale;
    SwPagePreView&      mrView;
    // OD 02.12.2002 #103492#
    bool                mbCalcScaleForPreviewLayout;
    Rectangle           maPaintedPreviewDocRect;
    // OD 12.12.2002 #103492#
    SwPagePreviewLayout* mpPgPrevwLayout;

	void SetPagePreview( sal_uInt8 nRow, sal_uInt8 nCol );

    using Window::Scroll;

public:
	SwPagePreViewWin( Window* pParent, SwPagePreView& rView );
	~SwPagePreViewWin();

	//Ruft ViewShell::Paint
	virtual void Paint( const Rectangle& rRect );
	virtual void KeyInput( const KeyEvent & );
	virtual void Command( const CommandEvent& rCEvt );
	virtual void MouseButtonDown(const MouseEvent& rMEvt);
	virtual void DataChanged( const DataChangedEvent& );

    void SetViewShell( ViewShell* pShell );

    ViewShell* GetViewShell() const { return mpViewShell; }

    sal_uInt8    GetRow() const      { return mnRow; }
    void    SetRow( sal_uInt8 n )    { if( n ) mnRow = n; }

    sal_uInt8    GetCol() const      { return mnCol; }
    void    SetCol( sal_uInt8 n )    { if( n ) mnCol = n; }

    sal_uInt16  GetSttPage() const      { return mnSttPage; }
    void    SetSttPage( sal_uInt16 n )  { mnSttPage = n; }

    /** get selected page number of document preview

        OD 13.12.2002 #103492#

        @author OD

        @return selected page number
    */
    sal_uInt16 SelectedPage() const;

    /** set selected page number in document preview

        OD 13.12.2002 #103492#

        @author OD

        @param _nSelectedPageNum
        input parameter - physical page number of page that will be the selected one.
    */
    void SetSelectedPage( sal_uInt16 _nSelectedPageNum );

    //JP 19.08.98: bei Einspaltigkeit gibt es keine 0. Seite!
    sal_uInt16  GetDefSttPage() const   { return 1 == mnCol ? 1 : 0; }

	void CalcWish( sal_uInt8 nNewRow, sal_uInt8 nNewCol );

    const Size& GetWinSize() const  { return maPxWinSize; }
	void SetWinSize( const Size& rNewSize );

    // OD 18.12.2002 #103492# - add <MV_SELPAGE>, <MV_SCROLL>
    enum MoveMode{ MV_CALC, MV_PAGE_UP, MV_PAGE_DOWN, MV_DOC_STT, MV_DOC_END,
                   MV_SELPAGE, MV_SCROLL, MV_NEWWINSIZE };
	int MovePage( int eMoveMode );

	// erzeuge den String fuer die StatusLeiste
	void GetStatusStr( String& rStr, sal_uInt16 nPageCount ) const;

	void RepaintCoreRect( const SwRect& rRect );

    /** method to adjust preview to a new zoom factor

        OD 02.12.2002 #103492#
        paint of preview is prepared for a new zoom factor
        OD 24.09.2003 #i19975# - zoom type has also been considered.
        Thus, add new parameter <_eZoomType>

        @author OD
    */
    void AdjustPreviewToNewZoom( const sal_uInt16 _nZoomFactor,
                                 const SvxZoomType _eZoomType );

    const Rectangle& GetPaintedPreviewDocRect() const
    {
        return maPaintedPreviewDocRect;
    }

    void Scroll(long nXMove, long nYMove, sal_uInt16 nFlags = 0);

    /** method to enable/disable book preview

        OD 2004-03-05 #i18143#

        @author OD

        @param _bBookPreview
        input parameter - boolean indicating, if book preview mode has to
        switch on <sal_True> or of <sal_False>

        @return boolean indicating, if book preview mode has changed.
    */
    bool SetBookPreviewMode( const bool _bBookPreview );

    virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible>
                    CreateAccessible();
};


/*--------------------------------------------------------------------
	Beschreibung:   Sicht auf ein Dokument
 --------------------------------------------------------------------*/

class SW_DLLPUBLIC SwPagePreView: public SfxViewShell
{
	// ViewWindow und Henkel zur Core
	// aktuelle Dispatcher-Shell
	SwPagePreViewWin        aViewWin;
	//viewdata of the previous SwView and the new crsrposition
	String 					sSwViewData,
	//and the new cursor position if the user double click in the PagePreView
							sNewCrsrPos;
    // to support keyboard the number of the page to go to can be set too
    sal_uInt16                  nNewPage;
    // Sichtbarer Bereich
	String                  sPageStr;
	Size                    aDocSz;
	Rectangle               aVisArea;

	// MDI Bedienelemente
	SwScrollbar             *pHScrollbar;
	SwScrollbar             *pVScrollbar;
	ImageButton             *pPageUpBtn,
							*pPageDownBtn;
	// Dummy-Window zum F�llen der rechten unteren Ecke, wenn beide Scrollbars
	// aktiv sind
	Window					*pScrollFill;

    sal_uInt16                  mnPageCount;
	sal_Bool                    bNormalPrint;

    // OD 09.01.2003 #106334#
    // new members to reset design mode at draw view for form shell on switching
    // back from writer page preview to normal view.
    sal_Bool                mbResetFormDesignMode:1;
    sal_Bool                mbFormDesignModeToReset:1;

	SW_DLLPRIVATE void            Init(const SwViewOption* = 0);
	SW_DLLPRIVATE Point           AlignToPixel(const Point& rPt) const;

    SW_DLLPRIVATE int             _CreateScrollbar( sal_Bool bHori );
	SW_DLLPRIVATE DECL_LINK( ScrollHdl, SwScrollbar * );
	SW_DLLPRIVATE DECL_LINK( EndScrollHdl, SwScrollbar * );
	SW_DLLPRIVATE DECL_LINK( BtnPage, Button * );
	SW_DLLPRIVATE int             ChgPage( int eMvMode, int bUpdateScrollbar = sal_True );


	SW_DLLPRIVATE virtual SfxPrinter*     GetPrinter( sal_Bool bCreate = sal_False );
    SW_DLLPRIVATE virtual sal_uInt16          SetPrinter( SfxPrinter *pNewPrinter, sal_uInt16 nDiffFlags = SFX_PRINTER_ALL, bool bIsAPI=false );
	SW_DLLPRIVATE virtual SfxTabPage*     CreatePrintOptionsPage( Window *pParent,
												const SfxItemSet &rOptions );

	SW_DLLPRIVATE void CalcAndSetBorderPixel( SvBorder &rToFill, sal_Bool bInner );

    /** help method to execute SfxRequest FN_PAGE_UP and FN_PAGE_DOWN

        OD 04.03.2003 #107369#

        @param _bPgUp
        input parameter - boolean that indicates, if FN_PAGE_UP or FN_PAGE_DOWN
        has to be executed.

        @param _pReq
        optional input parameter - pointer to the <SfxRequest> instance, if existing.

        @author OD
    */
    SW_DLLPRIVATE void _ExecPgUpAndPgDown( const bool  _bPgUp,
                             SfxRequest* _pReq = 0 );

protected:
	virtual void    InnerResizePixel( const Point &rOfs, const Size &rSize );
	virtual void    OuterResizePixel( const Point &rOfs, const Size &rSize );
	virtual Size	GetOptimalSizePixel() const;

    void         SetZoom(SvxZoomType eSet, sal_uInt16 nFactor);

public:
	SFX_DECL_VIEWFACTORY(SwPagePreView);
	SFX_DECL_INTERFACE(SW_PAGEPREVIEW)
	TYPEINFO();

	inline Window*          GetFrameWindow() const { return &(GetViewFrame())->GetWindow(); }
    inline ViewShell*       GetViewShell() const { return aViewWin.GetViewShell(); }
	inline const Rectangle& GetVisArea() const { return aVisArea; }
	inline void             GrabFocusViewWin() { aViewWin.GrabFocus(); }
	inline void             RepaintCoreRect( const SwRect& rRect )
								{ aViewWin.RepaintCoreRect( rRect ); }

	void            DocSzChgd(const Size& rNewSize);
	const Size&     GetDocSz() const { return aDocSz; }

	virtual void    SetVisArea( const Rectangle&, sal_Bool bUpdateScrollbar = sal_True);

	inline void     AdjustEditWin();

    void            ScrollViewSzChg();
    void            ScrollDocSzChg();
    void            ShowHScrollbar(sal_Bool bShow);

    void            ShowVScrollbar(sal_Bool bShow);

    sal_uInt16          GetPageCount() const        { return mnPageCount; }

	sal_Bool 			HandleWheelCommands( const CommandEvent& );

	const String&	GetPrevSwViewData() const		{ return sSwViewData; }
	void 			SetNewCrsrPos( const String& rStr ) { sNewCrsrPos = rStr; }
	const String&	GetNewCrsrPos() const			{ return sNewCrsrPos; }

    sal_uInt16          GetNewPage() const {return nNewPage;}
    void            SetNewPage(sal_uInt16 nSet)  {nNewPage = nSet;}

        // Handler
	void            Execute(SfxRequest&);
	void            GetState(SfxItemSet&);
	void            StateUndo(SfxItemSet&);

	SwDocShell*     GetDocShell();

    //apply Accessiblity options
    void ApplyAccessiblityOptions(SvtAccessibilityOptions& rAccessibilityOptions);

    // OD 09.01.2003 #106334# - inline method to request values of new members
    // <mbResetFormDesignMode> and <mbFormDesignModeToReset>
    inline sal_Bool ResetFormDesignMode() const
    {
        return mbResetFormDesignMode;
    }

    inline sal_Bool FormDesignModeToReset() const
    {
        return mbFormDesignModeToReset;
    }

    /** adjust position of vertical scrollbar

        OD 19.02.2003 #107369
        Currently used, if the complete preview layout rows fit into to the given
        window, if a new page is selected and this page is visible.

        @author OD

        @param _nNewThumbPos
        input parameter - new position, which will be assigned to the vertical
        scrollbar.
    */
    void SetVScrollbarThumbPos( const sal_uInt16 _nNewThumbPos );

    SwPagePreView( SfxViewFrame* pFrame, SfxViewShell* );
	~SwPagePreView();
};

// ----------------- inline Methoden ----------------------


inline void SwPagePreView::AdjustEditWin()
{
	OuterResizePixel( Point(), GetFrameWindow()->GetOutputSizePixel() );
}

#endif