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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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_svx.hxx"
#include <svx/sdr/overlay/overlayselection.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <svtools/optionsdrawinglayer.hxx>
#include <vcl/svapp.hxx>
#include <vcl/outdev.hxx>
#include <drawinglayer/primitive2d/invertprimitive2d.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <basegfx/polygon/b2dpolypolygoncutter.hxx>
#include <svx/sdr/overlay/overlaymanager.hxx>
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace overlay
{
// combine rages geometrically to a single, ORed polygon
basegfx::B2DPolyPolygon impCombineRangesToPolyPolygon(const std::vector< basegfx::B2DRange >& rRanges)
{
const sal_uInt32 nCount(rRanges.size());
basegfx::B2DPolyPolygon aRetval;
for(sal_uInt32 a(0); a < nCount; a++)
{
const basegfx::B2DPolygon aDiscretePolygon(basegfx::tools::createPolygonFromRect(rRanges[a]));
if(0 == a)
{
aRetval.append(aDiscretePolygon);
}
else
{
aRetval = basegfx::tools::solvePolygonOperationOr(aRetval, basegfx::B2DPolyPolygon(aDiscretePolygon));
}
}
return aRetval;
}
// check if wanted type OVERLAY_TRANSPARENT or OVERLAY_SOLID
// is possible. If not, fallback to invert mode (classic mode)
OverlayType impCheckPossibleOverlayType(OverlayType aOverlayType)
{
if(OVERLAY_INVERT != aOverlayType)
{
const SvtOptionsDrawinglayer aSvtOptionsDrawinglayer;
if(!aSvtOptionsDrawinglayer.IsTransparentSelection())
{
// not possible when switched off by user
return OVERLAY_INVERT;
}
else
{
const OutputDevice *pOut = Application::GetDefaultDevice();
if(pOut->GetSettings().GetStyleSettings().GetHighContrastMode())
{
// not possible when in high contrast mode
return OVERLAY_INVERT;
}
if(!pOut->supportsOperation(OutDevSupport_TransparentRect))
{
// not possible when no fast transparence paint is supported on the system
return OVERLAY_INVERT;
}
}
}
return aOverlayType;
}
drawinglayer::primitive2d::Primitive2DSequence OverlaySelection::createOverlayObjectPrimitive2DSequence()
{
drawinglayer::primitive2d::Primitive2DSequence aRetval;
const sal_uInt32 nCount(getRanges().size());
if(nCount)
{
// create range primitives
const bool bInvert(OVERLAY_INVERT == maLastOverlayType);
basegfx::BColor aRGBColor(getBaseColor().getBColor());
aRetval.realloc(nCount);
if(bInvert)
{
// force color to white for invert to get a full invert
aRGBColor = basegfx::BColor(1.0, 1.0, 1.0);
}
for(sal_uInt32 a(0);a < nCount; a++)
{
const basegfx::B2DPolygon aPolygon(basegfx::tools::createPolygonFromRect(maRanges[a]));
aRetval[a] = drawinglayer::primitive2d::Primitive2DReference(
new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
basegfx::B2DPolyPolygon(aPolygon),
aRGBColor));
}
if(bInvert)
{
// embed all in invert primitive
const drawinglayer::primitive2d::Primitive2DReference aInvert(
new drawinglayer::primitive2d::InvertPrimitive2D(
aRetval));
aRetval = drawinglayer::primitive2d::Primitive2DSequence(&aInvert, 1);
}
else if(OVERLAY_TRANSPARENT == maLastOverlayType)
{
// embed all rectangles in transparent paint
const double fTransparence(mnLastTransparence / 100.0);
const drawinglayer::primitive2d::Primitive2DReference aUnifiedTransparence(
new drawinglayer::primitive2d::UnifiedTransparencePrimitive2D(
aRetval,
fTransparence));
if(getBorder())
{
const basegfx::B2DPolyPolygon aPolyPolygon(impCombineRangesToPolyPolygon(getRanges()));
const drawinglayer::primitive2d::Primitive2DReference aSelectionOutline(
new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(
aPolyPolygon,
aRGBColor));
// add both to result
aRetval.realloc(2);
aRetval[0] = aUnifiedTransparence;
aRetval[1] = aSelectionOutline;
}
else
{
// just add transparent part
aRetval = drawinglayer::primitive2d::Primitive2DSequence(&aUnifiedTransparence, 1);
}
}
}
return aRetval;
}
OverlaySelection::OverlaySelection(
OverlayType eType,
const Color& rColor,
const std::vector< basegfx::B2DRange >& rRanges,
bool bBorder)
: OverlayObject(rColor),
meOverlayType(eType),
maRanges(rRanges),
maLastOverlayType(eType),
mnLastTransparence(0),
mbBorder(bBorder)
{
// no AA for selection overlays
allowAntiAliase(false);
}
OverlaySelection::~OverlaySelection()
{
if(getOverlayManager())
{
getOverlayManager()->remove(*this);
}
}
drawinglayer::primitive2d::Primitive2DSequence OverlaySelection::getOverlayObjectPrimitive2DSequence() const
{
// get current values
const OverlayType aNewOverlayType(impCheckPossibleOverlayType(meOverlayType));
const SvtOptionsDrawinglayer aSvtOptionsDrawinglayer;
const sal_uInt16 nNewTransparence(aSvtOptionsDrawinglayer.GetTransparentSelectionPercent());
if(getPrimitive2DSequence().hasElements())
{
if(aNewOverlayType != maLastOverlayType
|| nNewTransparence != mnLastTransparence)
{
// conditions of last local decomposition have changed, delete
const_cast< OverlaySelection* >(this)->setPrimitive2DSequence(drawinglayer::primitive2d::Primitive2DSequence());
}
}
if(!getPrimitive2DSequence().hasElements())
{
// remember new values
const_cast< OverlaySelection* >(this)->maLastOverlayType = aNewOverlayType;
const_cast< OverlaySelection* >(this)->mnLastTransparence = nNewTransparence;
}
// call base implementation
return OverlayObject::getOverlayObjectPrimitive2DSequence();
}
void OverlaySelection::setRanges(const std::vector< basegfx::B2DRange >& rNew)
{
if(rNew != maRanges)
{
maRanges = rNew;
objectChange();
}
}
} // end of namespace overlay
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
// eof
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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