3b83c6ac80
.. instead of a Primitive2DContainer. The container very frequently contains only a single item, since the decomposition method often sticks only a single top-level node in there, so it turns out to be a net loss overall, memory consumption-wise. Also, if we return a single Primitive2DReference from a BufferedDecomposition, that maximises the sharing of data between the BufferedDecomposition objects at the bottom of the decomposed tree, and objects higher up. Change-Id: Iaf272e60e2997299cc35a1bd209c51b6b79e9a8b Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162976 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
136 lines
5.7 KiB
C++
136 lines
5.7 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/metafileprimitive2d.hxx>
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#include <utility>
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#include <wmfemfhelper.hxx>
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#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
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#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
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#include <vcl/canvastools.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 MetafilePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
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{
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// Interpret the Metafile and get the content. There should be only one target, as in the start condition,
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// but iterating will be the right thing to do when some push/pop is not closed
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Primitive2DContainer xRetval(wmfemfhelper::interpretMetafile(getMetaFile(), rViewInformation));
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if(xRetval.empty())
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return nullptr;
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// get target size
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const ::tools::Rectangle aMtfTarget(getMetaFile().GetPrefMapMode().GetOrigin(), getMetaFile().GetPrefSize());
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const basegfx::B2DRange aMtfRange(vcl::unotools::b2DRectangleFromRectangle(aMtfTarget));
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// tdf#113197 get content range and check if we have an overlap with
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// defined target range (aMtfRange)
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if (!aMtfRange.isEmpty())
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{
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const basegfx::B2DRange aContentRange(xRetval.getB2DRange(rViewInformation));
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// also test equal since isInside gives also true for equal
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if (!aMtfRange.equal(aContentRange) && !aMtfRange.isInside(aContentRange))
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{
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// contentRange is partly larger than aMtfRange (stuff sticks
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// outside), clipping is needed
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const drawinglayer::primitive2d::Primitive2DReference xMask(
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new drawinglayer::primitive2d::MaskPrimitive2D(
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basegfx::B2DPolyPolygon(
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basegfx::utils::createPolygonFromRect(
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aMtfRange)),
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std::move(xRetval)));
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xRetval = drawinglayer::primitive2d::Primitive2DContainer{ xMask };
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}
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}
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// create transformation
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basegfx::B2DHomMatrix aAdaptedTransform;
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aAdaptedTransform.translate(-aMtfTarget.Left(), -aMtfTarget.Top());
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aAdaptedTransform.scale(
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aMtfTarget.getOpenWidth() ? 1.0 / aMtfTarget.getOpenWidth() : 1.0,
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aMtfTarget.getOpenHeight() ? 1.0 / aMtfTarget.getOpenHeight() : 1.0);
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aAdaptedTransform = getTransform() * aAdaptedTransform;
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// embed to target transformation
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const Primitive2DReference aEmbeddedTransform(
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new TransformPrimitive2D(
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aAdaptedTransform,
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std::move(xRetval)));
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return aEmbeddedTransform;
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}
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MetafilePrimitive2D::MetafilePrimitive2D(
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basegfx::B2DHomMatrix aMetaFileTransform,
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const GDIMetaFile& rMetaFile)
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: maMetaFileTransform(std::move(aMetaFileTransform)),
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maMetaFile(rMetaFile)
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{
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// activate callback to flush buffered decomposition content
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setCallbackSeconds(20);
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}
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bool MetafilePrimitive2D::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 MetafilePrimitive2D& rCompare = static_cast<const MetafilePrimitive2D&>(rPrimitive);
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return (getTransform() == rCompare.getTransform()
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&& getMetaFile() == rCompare.getMetaFile());
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}
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return false;
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}
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basegfx::B2DRange MetafilePrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
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{
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// use own implementation to quickly answer the getB2DRange question. The
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// MetafilePrimitive2D assumes that all geometry is inside of the shape. If
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// this is not the case (i have already seen some wrong Metafiles) it should
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// be embedded to a MaskPrimitive2D
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basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
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aRetval.transform(getTransform());
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return aRetval;
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}
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// from MetafileAccessor
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void MetafilePrimitive2D::accessMetafile(GDIMetaFile& rTargetMetafile) const
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{
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rTargetMetafile = maMetaFile;
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}
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// provide unique ID
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sal_uInt32 MetafilePrimitive2D::getPrimitive2DID() const
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{
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return PRIMITIVE2D_ID_METAFILEPRIMITIVE2D;
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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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