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#include <com/sun/star/text/HoriOrientation.hpp>
#include <vcl/window.hxx>

#include "swtypes.hxx"
#include "shdwcrsr.hxx"

using namespace ::com::sun::star;


SwShadowCursor::~SwShadowCursor()
{
    if( USHRT_MAX != nOldMode )
        DrawCrsr( aOldPt, nOldHeight, nOldMode );
}

void SwShadowCursor::SetPos( const Point& rPt, long nHeight, sal_uInt16 nMode )
{
    Point aPt( pWin->LogicToPixel( rPt ));
    nHeight = pWin->LogicToPixel( Size( 0, nHeight )).Height();
    if( aOldPt != aPt || nOldHeight != nHeight || nOldMode != nMode )
    {
        if( USHRT_MAX != nOldMode )
            DrawCrsr( aOldPt, nOldHeight, nOldMode );

        DrawCrsr( aPt, nHeight, nMode );
        nOldMode = nMode;
        nOldHeight = nHeight;
        aOldPt = aPt;
    }
}

void SwShadowCursor::DrawTri( const Point& rPt, long nHeight, sal_Bool bLeft )
{
    long nLineDiff = ( nHeight / 2 );
    long nLineDiffHalf = nLineDiff / 2;

    // Punkt oben
    Point aPt1( (bLeft ? rPt.X() - 3 : rPt.X() + 3),
                rPt.Y() + nLineDiffHalf );
    // Punkt unten
    Point aPt2( aPt1.X(), aPt1.Y() + nHeight - nLineDiff - 1 );
    long nDiff = bLeft ? -1 : 1;
    while( aPt1.Y() <= aPt2.Y() )
    {
        pWin->DrawLine( aPt1, aPt2 );
        aPt1.Y()++, aPt2.Y()--;
        aPt2.X() = aPt1.X() += nDiff;
    }
}

void SwShadowCursor::DrawCrsr( const Point& rPt, long nHeight, sal_uInt16 nMode )
{
    nHeight = (((nHeight / 4)+1) * 4) + 1;

    pWin->Push();

    pWin->SetMapMode( MAP_PIXEL );
    pWin->SetRasterOp( ROP_XOR );

    pWin->SetLineColor( Color( aCol.GetColor() ^ COL_WHITE ) );

    // 1. der Strich:
    pWin->DrawLine( Point( rPt.X(), rPt.Y() + 1),
              Point( rPt.X(), rPt.Y() - 2 + nHeight ));

    // 2. das Dreieck
    if( text::HoriOrientation::LEFT == nMode || text::HoriOrientation::CENTER == nMode )    // Pfeil nach rechts
        DrawTri( rPt, nHeight, sal_False );
    if( text::HoriOrientation::RIGHT == nMode || text::HoriOrientation::CENTER == nMode )   // Pfeil nach links
        DrawTri( rPt, nHeight, sal_True );

    pWin->Pop();
}

void SwShadowCursor::Paint()
{
    if( USHRT_MAX != nOldMode )
        DrawCrsr( aOldPt, nOldHeight, nOldMode );
}

Rectangle SwShadowCursor::GetRect() const
{
    long nH = nOldHeight;
    Point aPt( aOldPt );

    nH = (((nH / 4)+1) * 4) + 1;
    long nWidth = nH / 4 + 3 + 1;

    Size aSz( nWidth, nH );

    if( text::HoriOrientation::RIGHT == nOldMode )
        aPt.X() -= aSz.Width();
    else if( text::HoriOrientation::CENTER == nOldMode )
    {
        aPt.X() -= aSz.Width();
        aSz.Width() *= 2;
    }

    return pWin->PixelToLogic( Rectangle( aPt, aSz ) );
}




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