462d85709e
To more directly support an additional alpha channel for BitmapPrimitive data I have done some deeper changes to the primitive stack, in a compatible way. Quite some more graphic types and primitives now support an additional direct alpha value. All that is decomposed/created/broken down in a way that needs no changes for existing renderers, in already described ways. The CairoPixelProcessor2D already uses this in the processFillGraphicPrimitive2D implementation and thus in the FillGraphicPrimitive2D. This works since primitive productions now all try to create that FillGraphicPrimitive2D type including an additional alpha value - if possible and necessary. Change-Id: Ib1b16491a2b3aee16f14cc8196e28af30a7cf9be Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170900 Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com> Tested-by: Jenkins
142 lines
5.4 KiB
C++
142 lines
5.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
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#include <basegfx/polygon/b2dpolygon.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <texture/texture.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
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#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
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#include <drawinglayer/primitive2d/graphicprimitivehelper2d.hxx>
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#include <utility>
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#include <vcl/graph.hxx>
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using namespace com::sun::star;
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namespace drawinglayer::primitive2d
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{
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Primitive2DReference FillGraphicPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
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{
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const attribute::FillGraphicAttribute& rAttribute = getFillGraphic();
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if(rAttribute.isDefault())
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return nullptr;
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const Graphic& rGraphic = rAttribute.getGraphic();
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if(GraphicType::Bitmap != rGraphic.GetType() && GraphicType::GdiMetafile != rGraphic.GetType())
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return nullptr;
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const Size aSize(rGraphic.GetPrefSize());
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if(!(aSize.Width() && aSize.Height()))
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return nullptr;
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// we have a graphic (bitmap or metafile) with some size
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Primitive2DContainer aContainer;
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if(rAttribute.getTiling())
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{
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// get object range and create tiling matrices
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std::vector< basegfx::B2DHomMatrix > aMatrices;
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texture::GeoTexSvxTiled aTiling(
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rAttribute.getGraphicRange(),
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rAttribute.getOffsetX(),
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rAttribute.getOffsetY());
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// get matrices and realloc retval
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aTiling.appendTransformations(aMatrices);
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// prepare content primitive
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Primitive2DContainer xSeq;
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create2DDecompositionOfGraphic(xSeq,
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rGraphic,
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basegfx::B2DHomMatrix(),
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getTransparency());
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rtl::Reference<GroupPrimitive2D> xGroup = new GroupPrimitive2D(std::move(xSeq));
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for(const auto &a : aMatrices)
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{
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aContainer.push_back(new TransformPrimitive2D(
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getTransformation() * a,
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*xGroup));
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}
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}
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else
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{
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// add graphic without tiling
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const basegfx::B2DHomMatrix aObjectTransform(
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getTransformation() * basegfx::utils::createScaleTranslateB2DHomMatrix(
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rAttribute.getGraphicRange().getRange(),
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rAttribute.getGraphicRange().getMinimum()));
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create2DDecompositionOfGraphic(aContainer,
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rGraphic,
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aObjectTransform,
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getTransparency());
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}
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return new GroupPrimitive2D(std::move(aContainer));
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}
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FillGraphicPrimitive2D::FillGraphicPrimitive2D(
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basegfx::B2DHomMatrix aTransformation,
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const attribute::FillGraphicAttribute& rFillGraphic,
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double fTransparency)
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: maTransformation(std::move(aTransformation))
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, maFillGraphic(rFillGraphic)
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, maOffsetXYCreatedBitmap()
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, mfTransparency(std::max(0.0, std::min(1.0, fTransparency)))
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{
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}
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bool FillGraphicPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
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{
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if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
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{
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const FillGraphicPrimitive2D& rCompare = static_cast< const FillGraphicPrimitive2D& >(rPrimitive);
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return (getTransformation() == rCompare.getTransformation()
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&& getFillGraphic() == rCompare.getFillGraphic()
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&& basegfx::fTools::equal(getTransparency(), rCompare.getTransparency()));
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}
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return false;
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}
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basegfx::B2DRange FillGraphicPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
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{
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// return range of it
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basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
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aPolygon.transform(getTransformation());
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return basegfx::utils::getRange(aPolygon);
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}
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// provide unique ID
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sal_uInt32 FillGraphicPrimitive2D::getPrimitive2DID() const
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{
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return PRIMITIVE2D_ID_FILLGRAPHICPRIMITIVE2D;
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}
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} // end of namespace
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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