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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/attribute/sdrallfillattributeshelper.hxx>
#include <sdr/primitive2d/sdrattributecreator.hxx>
#include <sdr/primitive2d/sdrdecompositiontools.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/attribute/fillhatchattribute.hxx>
#include <drawinglayer/attribute/sdrfillgraphicattribute.hxx>
#include <vcl/graph.hxx>
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer::attribute
{
void SdrAllFillAttributesHelper::createPrimitive2DSequence(
const basegfx::B2DRange& rPaintRange,
const basegfx::B2DRange& rDefineRange)
{
// reset and remember new target range for object geometry
maLastPaintRange = rPaintRange;
maLastDefineRange = rDefineRange;
if(isUsed())
{
maPrimitives.resize(1);
maPrimitives[0] = drawinglayer::primitive2d::createPolyPolygonFillPrimitive(
basegfx::B2DPolyPolygon(
basegfx::utils::createPolygonFromRect(
maLastPaintRange)),
maLastDefineRange,
maFillAttribute ? *maFillAttribute : drawinglayer::attribute::SdrFillAttribute(),
maFillGradientAttribute ? *maFillGradientAttribute : drawinglayer::attribute::FillGradientAttribute());
}
}
SdrAllFillAttributesHelper::SdrAllFillAttributesHelper(const Color& rColor)
: maLastPaintRange(),
maLastDefineRange(),
maFillAttribute(),
maFillGradientAttribute(),
maPrimitives()
{
maFillAttribute =
std::make_shared<drawinglayer::attribute::SdrFillAttribute>(
0.0,
rColor.GetRGBColor().getBColor(),
drawinglayer::attribute::FillGradientAttribute(),
drawinglayer::attribute::FillHatchAttribute(),
drawinglayer::attribute::SdrFillGraphicAttribute());
}
SdrAllFillAttributesHelper::SdrAllFillAttributesHelper(const SfxItemSet& rSet)
: maLastPaintRange(),
maLastDefineRange(),
maFillAttribute(
std::make_shared<drawinglayer::attribute::SdrFillAttribute>(
drawinglayer::primitive2d::createNewSdrFillAttribute(rSet))),
maFillGradientAttribute(
std::make_shared<drawinglayer::attribute::FillGradientAttribute>(
drawinglayer::primitive2d::createNewTransparenceGradientAttribute(rSet))),
maPrimitives()
{
}
SdrAllFillAttributesHelper::~SdrAllFillAttributesHelper()
{
}
bool SdrAllFillAttributesHelper::isUsed() const
{
// only depends on fill, FillGradientAttribute alone defines no fill
return maFillAttribute && !maFillAttribute->isDefault();
}
bool SdrAllFillAttributesHelper::isTransparent() const
{
if(hasSdrFillAttribute() && 0.0 != maFillAttribute->getTransparence())
{
return true;
}
if(maFillGradientAttribute && !maFillGradientAttribute->isDefault())
{
return true;
}
if(hasSdrFillAttribute())
{
const Graphic& rGraphic = getFillAttribute().getFillGraphic().getFillGraphic();
return rGraphic.IsSupportedGraphic() && rGraphic.IsTransparent();
}
return false;
}
const drawinglayer::attribute::SdrFillAttribute& SdrAllFillAttributesHelper::getFillAttribute() const
{
if(!maFillAttribute)
{
const_cast< SdrAllFillAttributesHelper* >(this)->maFillAttribute =
std::make_shared<drawinglayer::attribute::SdrFillAttribute>();
}
return *maFillAttribute;
}
const drawinglayer::attribute::FillGradientAttribute& SdrAllFillAttributesHelper::getFillGradientAttribute() const
{
if(!maFillGradientAttribute)
{
const_cast< SdrAllFillAttributesHelper* >(this)->maFillGradientAttribute =
std::make_shared<drawinglayer::attribute::FillGradientAttribute>();
}
return *maFillGradientAttribute;
}
const drawinglayer::primitive2d::Primitive2DContainer& SdrAllFillAttributesHelper::getPrimitive2DSequence(
const basegfx::B2DRange& rPaintRange,
const basegfx::B2DRange& rDefineRange) const
{
if(!maPrimitives.empty() && (maLastPaintRange != rPaintRange || maLastDefineRange != rDefineRange))
{
const_cast< SdrAllFillAttributesHelper* >(this)->maPrimitives.clear();
}
if(maPrimitives.empty())
{
const_cast< SdrAllFillAttributesHelper* >(this)->createPrimitive2DSequence(rPaintRange, rDefineRange);
}
return maPrimitives;
}
basegfx::BColor SdrAllFillAttributesHelper::getAverageColor(const basegfx::BColor& rFallback) const
{
basegfx::BColor aRetval(rFallback);
if(maFillAttribute && !maFillAttribute->isDefault())
{
const drawinglayer::attribute::FillGradientAttribute& rFillGradientAttribute = maFillAttribute->getGradient();
const drawinglayer::attribute::FillHatchAttribute& rFillHatchAttribute = maFillAttribute->getHatch();
const drawinglayer::attribute::SdrFillGraphicAttribute& rSdrFillGraphicAttribute = maFillAttribute->getFillGraphic();
const drawinglayer::attribute::FillGradientAttribute& rFillTransparenceGradientAttribute = getFillGradientAttribute();
double fTransparence(maFillAttribute->getTransparence());
if(!rFillTransparenceGradientAttribute.isDefault())
{
const double fTransA = rFillTransparenceGradientAttribute.getStartColor().luminance();
const double fTransB = rFillTransparenceGradientAttribute.getEndColor().luminance();
fTransparence = (fTransA + fTransB) * 0.5;
}
if(!rFillGradientAttribute.isDefault())
{
// gradient fill
const basegfx::BColor& rStart = rFillGradientAttribute.getStartColor();
const basegfx::BColor& rEnd = rFillGradientAttribute.getEndColor();
aRetval = basegfx::interpolate(rStart, rEnd, 0.5);
}
else if(!rFillHatchAttribute.isDefault())
{
// hatch fill
const basegfx::BColor& rColor = rFillHatchAttribute.getColor();
if(rFillHatchAttribute.isFillBackground())
{
const basegfx::BColor& rBackgroundColor = maFillAttribute->getColor();
// mix colors 50%/50%
aRetval = basegfx::interpolate(rColor, rBackgroundColor, 0.5);
}
else
{
// mix color with fallback color
aRetval = basegfx::interpolate(rColor, rFallback, 0.5);
}
}
else if(!rSdrFillGraphicAttribute.isDefault())
{
// graphic fill
// not used yet by purpose (see SwPageFrm::GetDrawBackgrdColor()),
// use fallback (already set)
}
else
{
// color fill
aRetval = maFillAttribute->getColor();
}
if(!basegfx::fTools::equalZero(fTransparence))
{
// blend into transparency
aRetval = basegfx::interpolate(aRetval, rFallback, fTransparence);
}
}
return aRetval.clamp();
}
bool SdrAllFillAttributesHelper::needCompleteRepaint() const
{
if(!isUsed() || !hasSdrFillAttribute())
{
// not used or no fill
return false;
}
const drawinglayer::attribute::SdrFillAttribute& rSdrFillAttribute = getFillAttribute();
if(!rSdrFillAttribute.getHatch().isDefault())
{
// hatch is always top-left aligned, needs no full refreshes
return false;
}
if(!rSdrFillAttribute.getGradient().isDefault())
{
// gradients always scale with the object
return true;
}
if(!rSdrFillAttribute.getFillGraphic().isDefault())
{
// some graphic constellations may not need this, but since most do
// (stretch to fill, all but top-left aligned, ...) claim to do by default
return true;
}
// color fill
return false;
}
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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