AOO410/main/sw/source/ui/utlui/shdwcrsr.cxx

/**************************************************************
 * 
 * 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_sw.hxx"


#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 ) );
}