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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sc.hxx"
#include <vcl/window.hxx>
#include <tools/debug.hxx>
#include "invmerge.hxx"
//------------------------------------------------------------------
ScInvertMerger::ScInvertMerger( Window* pWindow ) :
pWin( pWindow ),
pRects( NULL )
{
// both rectangles empty
}
ScInvertMerger::ScInvertMerger( ::std::vector< Rectangle >* pRectangles ) :
pWin( NULL ),
pRects( pRectangles )
{
// collect rectangles instead of inverting
}
ScInvertMerger::~ScInvertMerger()
{
Flush();
}
void ScInvertMerger::Flush()
{
FlushLine();
FlushTotal();
DBG_ASSERT( aLineRect.IsEmpty() && aTotalRect.IsEmpty(), "Flush: not empty" );
if ( pRects )
{
//
// also join vertically if there are non-adjacent columns involved
//
size_t nComparePos = 0;
while ( nComparePos < pRects->size() )
{
Rectangle aCompRect = (*pRects)[nComparePos];
sal_Int32 nBottom = aCompRect.Bottom();
size_t nOtherPos = nComparePos + 1;
while ( nOtherPos < pRects->size() )
{
Rectangle aOtherRect = (*pRects)[nOtherPos];
if ( aOtherRect.Top() > nBottom + 1 )
{
// rectangles are sorted, so we can stop searching
break;
}
if ( aOtherRect.Top() == nBottom + 1 &&
aOtherRect.Left() == aCompRect.Left() &&
aOtherRect.Right() == aCompRect.Right() )
{
// extend first rectangle
nBottom = aOtherRect.Bottom();
aCompRect.Bottom() = nBottom;
(*pRects)[nComparePos].Bottom() = nBottom;
// remove second rectangle
pRects->erase( pRects->begin() + nOtherPos );
// continue at unmodified nOtherPos
}
else
++nOtherPos;
}
++nComparePos;
}
}
}
void ScInvertMerger::FlushTotal()
{
if( aTotalRect.IsEmpty() )
return; // nothing to do
if ( pWin )
pWin->Invert( aTotalRect, INVERT_HIGHLIGHT );
else if ( pRects )
pRects->push_back( aTotalRect );
aTotalRect.SetEmpty();
}
void ScInvertMerger::FlushLine()
{
if( aLineRect.IsEmpty() )
return; // nothing to do
if ( aTotalRect.IsEmpty() )
{
aTotalRect = aLineRect; // start new total rect
}
else
{
if ( aLineRect.Left() == aTotalRect.Left() &&
aLineRect.Right() == aTotalRect.Right() &&
aLineRect.Top() == aTotalRect.Bottom() + 1 )
{
// extend total rect
aTotalRect.Bottom() = aLineRect.Bottom();
}
else
{
FlushTotal(); // draw old total rect
aTotalRect = aLineRect; // and start new one
}
}
aLineRect.SetEmpty();
}
void ScInvertMerger::AddRect( const Rectangle& rRect )
{
Rectangle aJustified = rRect;
if ( rRect.Left() > rRect.Right() ) // switch for RTL layout
{
aJustified.Left() = rRect.Right();
aJustified.Right() = rRect.Left();
}
if ( aLineRect.IsEmpty() )
{
aLineRect = aJustified; // start new line rect
}
else
{
BOOL bDone = FALSE;
if ( aJustified.Top() == aLineRect.Top() &&
aJustified.Bottom() == aLineRect.Bottom() )
{
// try to extend line rect
if ( aJustified.Left() == aLineRect.Right() + 1 )
{
aLineRect.Right() = aJustified.Right();
bDone = TRUE;
}
else if ( aJustified.Right() + 1 == aLineRect.Left() ) // for RTL layout
{
aLineRect.Left() = aJustified.Left();
bDone = TRUE;
}
}
if (!bDone)
{
FlushLine(); // use old line rect for total rect
aLineRect = aJustified; // and start new one
}
}
}
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