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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#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 <vcl/settings.hxx>
#include <drawinglayer/primitive2d/invertprimitive2d.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <basegfx/polygon/b2dpolypolygoncutter.hxx>
#include <svx/sdr/overlay/overlaymanager.hxx>
namespace sdr::overlay
{
// combine rages geometrically to a single, ORed polygon
static 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::utils::createPolygonFromRect(rRanges[a]));
if(0 == a)
{
aRetval.append(aDiscretePolygon);
}
else
{
aRetval = basegfx::utils::solvePolygonOperationOr(aRetval, basegfx::B2DPolyPolygon(aDiscretePolygon));
}
}
return aRetval;
}
// check if wanted type OverlayType::Transparent or OverlayType::Solid
// is possible. If not, fallback to invert mode (classic mode)
static OverlayType impCheckPossibleOverlayType(OverlayType aOverlayType)
{
if(OverlayType::Invert != aOverlayType)
{
const SvtOptionsDrawinglayer aSvtOptionsDrawinglayer;
if(!aSvtOptionsDrawinglayer.IsTransparentSelection())
{
// not possible when switched off by user
return OverlayType::Invert;
}
else if (const OutputDevice* pOut = Application::GetDefaultDevice())
{
if(pOut->GetSettings().GetStyleSettings().GetHighContrastMode())
{
// not possible when in high contrast mode
return OverlayType::Invert;
}
if(!pOut->SupportsOperation(OutDevSupportType::TransparentRect))
{
// not possible when no fast transparence paint is supported on the system
return OverlayType::Invert;
}
}
}
return aOverlayType;
}
drawinglayer::primitive2d::Primitive2DContainer OverlaySelection::createOverlayObjectPrimitive2DSequence()
{
drawinglayer::primitive2d::Primitive2DContainer aRetval;
const sal_uInt32 nCount(getRanges().size());
if(nCount)
{
// create range primitives
const bool bInvert(OverlayType::Invert == maLastOverlayType);
basegfx::BColor aRGBColor(getBaseColor().getBColor());
aRetval.resize(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::utils::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::Primitive2DContainer { aInvert };
}
else if(OverlayType::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(mbBorder)
{
const basegfx::B2DPolyPolygon aPolyPolygon(impCombineRangesToPolyPolygon(getRanges()));
const drawinglayer::primitive2d::Primitive2DReference aSelectionOutline(
new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(
aPolyPolygon,
aRGBColor));
// add both to result
aRetval.resize(2);
aRetval[0] = aUnifiedTransparence;
aRetval[1] = aSelectionOutline;
}
else
{
// just add transparent part
aRetval = drawinglayer::primitive2d::Primitive2DContainer { aUnifiedTransparence };
}
}
}
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::Primitive2DContainer OverlaySelection::getOverlayObjectPrimitive2DSequence() const
{
// get current values
const OverlayType aNewOverlayType(impCheckPossibleOverlayType(meOverlayType));
const SvtOptionsDrawinglayer aSvtOptionsDrawinglayer;
const sal_uInt16 nNewTransparence(aSvtOptionsDrawinglayer.GetTransparentSelectionPercent());
if(!getPrimitive2DSequence().empty())
{
if(aNewOverlayType != maLastOverlayType
|| nNewTransparence != mnLastTransparence)
{
// conditions of last local decomposition have changed, delete
const_cast< OverlaySelection* >(this)->resetPrimitive2DSequence();
}
}
if(getPrimitive2DSequence().empty())
{
// 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 sdr
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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