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


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

// include ---------------------------------------------------------------


#include <vcl/bitmap.hxx>
#include <editeng/frmdiritem.hxx>
#include <svx/pageitem.hxx>
#include <svx/pagectrl.hxx>
#include <editeng/boxitem.hxx>

#include <algorithm>

// struct PageWindow_Impl ------------------------------------------------

struct PageWindow_Impl
{
	SvxBoxItem*		pBorder;
	Bitmap			aBitmap;
	FASTBOOL		bBitmap;
    sal_Bool        bResetBackground;
    sal_Bool        bFrameDirection;
    sal_Int32       nFrameDirection;


    PageWindow_Impl() :
        pBorder(0),
        bBitmap(sal_False),
        bResetBackground(sal_False),
        bFrameDirection(sal_False),
        nFrameDirection(0) {}

    void        EnableFrameDirection(sal_Bool bEnable){bFrameDirection = bEnable;}
    void        SetFrameDirection(sal_Int32 nDirection){nFrameDirection = nDirection;}

};

// STATIC DATA -----------------------------------------------------------

#define CELL_WIDTH		1600L
#define CELL_HEIGHT		 800L

// class SvxPageWindow ---------------------------------------------------

SvxPageWindow::SvxPageWindow( Window* pParent, const ResId& rId ) :

	Window( pParent, rId ),

	nTop		( 0 ),
	nBottom		( 0 ),
	nLeft		( 0 ),
	nRight		( 0 ),
    aColor      ( COL_TRANSPARENT ),
	nHdLeft		( 0 ),
	nHdRight	( 0 ),
	nHdDist		( 0 ),
	nHdHeight	( 0 ),
    aHdColor    ( COL_TRANSPARENT ),
	pHdBorder	( 0 ),
	nFtLeft		( 0 ),
	nFtRight	( 0 ),
	nFtDist		( 0 ),
	nFtHeight	( 0 ),
    aFtColor    ( COL_TRANSPARENT ),
	pFtBorder 	( 0 ),
	bFooter		( sal_False ),
	bHeader		( sal_False ),
	bTable		( sal_False ),
	bHorz		( sal_False ),
	bVert		( sal_False ),
	eUsage		( SVX_PAGE_ALL )

{
	pImpl = new PageWindow_Impl;

	// defaultmaessing in Twips rechnen
	SetMapMode( MapMode( MAP_TWIP ) );
	aWinSize = GetOutputSizePixel();
	aWinSize.Height() -= 4;
	aWinSize.Width() -= 4;

	aWinSize = PixelToLogic( aWinSize );
    SetBackground();
}

// -----------------------------------------------------------------------

SvxPageWindow::~SvxPageWindow()
{
	delete pImpl;
	delete pHdBorder;
	delete pFtBorder;
}

// -----------------------------------------------------------------------

void __EXPORT SvxPageWindow::Paint( const Rectangle& )
{
	Fraction aXScale( aWinSize.Width(), std::max( (long) (aSize.Width() * 2 + aSize.Width() / 8), 1L ) );
	Fraction aYScale( aWinSize.Height(), std::max( aSize.Height(), 1L ) );
	MapMode aMapMode( GetMapMode() );

	if ( aYScale < aXScale )
	{
		aMapMode.SetScaleX( aYScale );
		aMapMode.SetScaleY( aYScale );
	}
	else
	{
		aMapMode.SetScaleX( aXScale );
		aMapMode.SetScaleY( aXScale );
	}
	SetMapMode( aMapMode );
	Size aSz( PixelToLogic( GetSizePixel() ) );
	long nYPos = ( aSz.Height() - aSize.Height() ) / 2;

	if ( eUsage == SVX_PAGE_ALL )
	{
		// alle Seiten gleich -> eine Seite malen
		if ( aSize.Width() > aSize.Height() )
		{
			// Querformat in gleicher Gr"osse zeichnen
			Fraction aX = aMapMode.GetScaleX();
			Fraction aY = aMapMode.GetScaleY();
			Fraction a2( 1.5 );
			aX *= a2;
			aY *= a2;
			aMapMode.SetScaleX( aX );
			aMapMode.SetScaleY( aY );
			SetMapMode( aMapMode );
			aSz = PixelToLogic( GetSizePixel() );
			nYPos = ( aSz.Height() - aSize.Height() ) / 2;
			long nXPos = ( aSz.Width() - aSize.Width() ) / 2;
			DrawPage( Point( nXPos, nYPos ), sal_True, sal_True );
		}
		else
			// Hochformat
			DrawPage( Point( ( aSz.Width() - aSize.Width() ) / 2, nYPos ), sal_True, sal_True );
	}
	else
	{
		// Linke und rechte Seite unterschiedlich -> ggf. zwei Seiten malen
		DrawPage( Point( 0, nYPos ), sal_False, (sal_Bool)( eUsage & SVX_PAGE_LEFT ) );
		DrawPage( Point( aSize.Width() + aSize.Width() / 8, nYPos ), sal_True,
				  (sal_Bool)( eUsage & SVX_PAGE_RIGHT ) );
	}
}

// -----------------------------------------------------------------------
void SvxPageWindow::DrawPage( const Point& rOrg, const sal_Bool bSecond, const sal_Bool bEnabled )
{
    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
    const Color& rFieldColor = rStyleSettings.GetFieldColor();
    const Color& rFieldTextColor = rStyleSettings.GetFieldTextColor();
    const Color& rDisableColor = rStyleSettings.GetDisableColor();
    const Color& rDlgColor = rStyleSettings.GetDialogColor();

    // background
    if(!bSecond || pImpl->bResetBackground)
    {
        SetLineColor( Color(COL_TRANSPARENT) );
        SetFillColor( rDlgColor );
        Size winSize(GetOutputSize());
        DrawRect( Rectangle( Point(0,0), winSize ) );

        if ( pImpl->bResetBackground )
            pImpl->bResetBackground = sal_False;
    }
    SetLineColor( rFieldTextColor );
    // Schatten
    Size aTempSize = aSize;
    // Seite
	if ( !bEnabled )
	{
        SetFillColor( rDisableColor );
		DrawRect( Rectangle( rOrg, aTempSize ) );
		return;
	}
    SetFillColor( rFieldColor );
	DrawRect( Rectangle( rOrg, aTempSize ) );

	// Border Top Bottom Left Right
	Point aBegin( rOrg );
	Point aEnd( rOrg );

	long nL = nLeft;
	long nR = nRight;

	if ( eUsage == SVX_PAGE_MIRROR && !bSecond )
	{
		// f"ur gespiegelt drehen
		nL = nRight;
		nR = nLeft;
	}

	Rectangle aRect;

	aRect.Left()  = rOrg.X() + nL;
	aRect.Right() = rOrg.X() + aTempSize.Width() - nR;
	aRect.Top()	  = rOrg.Y() + nTop;
	aRect.Bottom()= rOrg.Y() + aTempSize.Height() - nBottom;

	Rectangle aHdRect( aRect );
	Rectangle aFtRect( aRect );

	if ( bHeader )
	{
		// ggf. Header anzeigen
		aHdRect.Left() += nHdLeft;
		aHdRect.Right() -= nHdRight;
		aHdRect.Bottom() = aRect.Top() + nHdHeight;
		aRect.Top() += nHdHeight + nHdDist;
		SetFillColor( aHdColor );
		DrawRect( aHdRect );
	}

	if ( bFooter )
	{
		// ggf. Footer anzeigen
		aFtRect.Left() += nFtLeft;
		aFtRect.Right() -= nFtRight;
		aFtRect.Top() = aRect.Bottom() - nFtHeight;
		aRect.Bottom() -= nFtHeight + nFtDist;
		SetFillColor( aFtColor );
		DrawRect( aFtRect );
	}

	// Body malen
	SetFillColor( aColor );
	if ( pImpl->bBitmap )
	{
		DrawRect( aRect );
		Point aBmpPnt = aRect.TopLeft();
		Size aBmpSiz = aRect.GetSize();
		long nDeltaX = aBmpSiz.Width() / 15;
		long nDeltaY = aBmpSiz.Height() / 15;
		aBmpPnt.X() += nDeltaX;
		aBmpPnt.Y() += nDeltaY;
		aBmpSiz.Width() -= nDeltaX * 2;
		aBmpSiz.Height() -= nDeltaY * 2;
		DrawBitmap( aBmpPnt, aBmpSiz, pImpl->aBitmap );
	}
	else
		DrawRect( aRect );

    if(pImpl->bFrameDirection && !bTable)
    {
       //pImpl->nFrameDirection
        Point aPos;
        Font aFont(GetFont());
        const Size aSaveSize = aFont.GetSize();
        Size aDrawSize( 0, aRect.GetHeight() / 6);
        aFont.SetSize(aDrawSize);
        SetFont(aFont);
        String sText(String::CreateFromAscii("ABC"));
        Point aMove(1, GetTextHeight());
        sal_Unicode cArrow = 0x2193;
        long nAWidth = GetTextWidth(String(sText.GetChar(0)));
        switch(pImpl->nFrameDirection)
        {
            case FRMDIR_HORI_LEFT_TOP:
                aPos = aRect.TopLeft();
                aPos.X() += PixelToLogic(Point(1,1)).X();
                aMove.Y() = 0;
                cArrow = 0x2192;
            break;
            case FRMDIR_HORI_RIGHT_TOP:
                aPos = aRect.TopRight();
                aPos.X() -= nAWidth;
                aMove.Y() = 0;
                aMove.X() *= -1;
                cArrow = 0x2190;
            break;
            case FRMDIR_VERT_TOP_LEFT:
                aPos = aRect.TopLeft();
                aPos.X() += PixelToLogic(Point(1,1)).X();
                aMove.X() = 0;
            break;
            case FRMDIR_VERT_TOP_RIGHT:
                aPos = aRect.TopRight();
                aPos.X() -= nAWidth;
                aMove.X() = 0;
            break;
        }
        sText.Append(cArrow);
        for(sal_uInt16 i = 0; i < sText.Len(); i++)
        {
            String sDraw(sText.GetChar(i));
            long nHDiff = 0;
            long nCharWidth = GetTextWidth(sDraw);
            sal_Bool bHorizontal = 0 == aMove.Y();
            if(!bHorizontal)
            {
                nHDiff = (nAWidth - nCharWidth)/2;
                aPos.X() += nHDiff;
            }
            DrawText(aPos, sDraw);
            if(bHorizontal)
            {
                aPos.X() += aMove.X() < 0 ? - nCharWidth : nCharWidth;
            }
            else
            {
                aPos.X() -= nHDiff;
                aPos.Y() += aMove.Y();
            }
        }
        aFont.SetSize(aSaveSize);
        SetFont(aFont);

    }
	if ( bTable )
	{
		// Tabelle malen, ggf. zentrieren
		SetLineColor( Color(COL_LIGHTGRAY) );

		long nW = aRect.GetWidth(), nH = aRect.GetHeight();
		long nTW = CELL_WIDTH * 3, nTH = CELL_HEIGHT * 3;
        long _nLeft = bHorz ? aRect.Left() + ((nW - nTW) / 2) : aRect.Left();
        long _nTop = bVert ? aRect.Top() + ((nH - nTH) / 2) : aRect.Top();
        Rectangle aCellRect( Point( _nLeft, _nTop ), Size( CELL_WIDTH, CELL_HEIGHT ) );

		for ( sal_uInt16 i = 0; i < 3; ++i )
		{
            aCellRect.Left() = _nLeft;
            aCellRect.Right() = _nLeft + CELL_WIDTH;
			if ( i > 0 )
				aCellRect.Move( 0, CELL_HEIGHT );

			for ( sal_uInt16 j = 0; j < 3; ++j )
			{
				if ( j > 0 )
					aCellRect.Move( CELL_WIDTH, 0 );
				DrawRect( aCellRect );
			}
		}
	}
}

// -----------------------------------------------------------------------

void SvxPageWindow::SetBorder( const SvxBoxItem& rNew )
{
	delete pImpl->pBorder;
	pImpl->pBorder = new SvxBoxItem( rNew );
}

// -----------------------------------------------------------------------

void SvxPageWindow::SetBitmap( Bitmap* pBmp )
{
	if ( pBmp )
	{
		pImpl->aBitmap = *pBmp;
		pImpl->bBitmap = sal_True;
	}
	else
		pImpl->bBitmap = sal_False;
}

// -----------------------------------------------------------------------

void SvxPageWindow::SetHdBorder( const SvxBoxItem& rNew )
{
	delete pHdBorder;
	pHdBorder = new SvxBoxItem( rNew );
}
// -----------------------------------------------------------------------

void SvxPageWindow::SetFtBorder( const SvxBoxItem& rNew )
{
	delete pFtBorder;
	pFtBorder = new SvxBoxItem( rNew );
}
/* -----------------------------13.06.2002 16:16------------------------------

 ---------------------------------------------------------------------------*/
void  SvxPageWindow::EnableFrameDirection(sal_Bool bEnable)
{
    pImpl->EnableFrameDirection(bEnable);
}
/* -----------------------------13.06.2002 16:16------------------------------

 ---------------------------------------------------------------------------*/
void  SvxPageWindow::SetFrameDirection(sal_Int32 nFrameDirection)
{
    pImpl->SetFrameDirection(nFrameDirection);
}

void SvxPageWindow::ResetBackground()
{
    pImpl->bResetBackground = sal_True;
}