office-gobmx/drawinglayer/source/primitive2d/backgroundcolorprimitive2d.cxx
Armin Le Grand (allotropia) 008cf1285d Added handling of transparence to BackgroundColorPrimitive2D
...which was missing in ::create2DDecomposition.

Change-Id: I585aa884e4d19bf6f34783d254f502a4c3dd6733
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/141470
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
2022-10-18 08:10:01 +02:00

113 lines
4.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* 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
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*/
#include <drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
using namespace com::sun::star;
namespace drawinglayer::primitive2d
{
void BackgroundColorPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
{
// transparency invalid or completely transparent, done
if(getTransparency() < 0.0 || getTransparency() >= 1.0)
return;
// no viewport, not visible, done
if(rViewInformation.getViewport().isEmpty())
return;
// create decompose geometry
const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(rViewInformation.getViewport()));
Primitive2DReference aDecompose(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aOutline), getBColor()));
if(getTransparency() != 0.0)
{
// if used, embed decompose geometry to unified transparency
Primitive2DContainer aContent { aDecompose };
aDecompose = Primitive2DReference(
new UnifiedTransparencePrimitive2D(
std::move(aContent),
getTransparency()));
}
rContainer.push_back(aDecompose);
}
BackgroundColorPrimitive2D::BackgroundColorPrimitive2D(
const basegfx::BColor& rBColor,
double fTransparency)
: maBColor(rBColor),
mfTransparency(fTransparency)
{
}
bool BackgroundColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
{
const BackgroundColorPrimitive2D& rCompare = static_cast<const BackgroundColorPrimitive2D&>(rPrimitive);
return (getBColor() == rCompare.getBColor() && getTransparency() == rCompare.getTransparency());
}
return false;
}
basegfx::B2DRange BackgroundColorPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
{
// always as big as the view
return rViewInformation.getViewport();
}
void BackgroundColorPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
{
if(!getBuffered2DDecomposition().empty() && (maLastViewport != rViewInformation.getViewport()))
{
// conditions of last local decomposition have changed, delete
const_cast< BackgroundColorPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
}
if(getBuffered2DDecomposition().empty())
{
// remember ViewRange
const_cast< BackgroundColorPrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
}
// use parent implementation
BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
}
// provide unique ID
sal_uInt32 BackgroundColorPrimitive2D::getPrimitive2DID() const
{
return PRIMITIVE2D_ID_BACKGROUNDCOLORPRIMITIVE2D;
}
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */