11b1557147
which allows us to eliminate a bunch of rounding at various layers, and consequently maintain a lot more precision Change-Id: I911dedd7c041c1d67396c082e5695346ea689acb Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175814 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
208 lines
6.5 KiB
C++
208 lines
6.5 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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#include <config_cairo_canvas.h>
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#include <sal/config.h>
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#include <vcl/wrkwin.hxx>
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#include <vcl/canvastools.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/gdimtf.hxx>
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#include <vcl/metaact.hxx>
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#include <com/sun/star/rendering/XBitmap.hpp>
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#include <com/sun/star/rendering/XCanvas.hpp>
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#include <com/sun/star/rendering/XBitmapCanvas.hpp>
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#include <cppcanvas/vclfactory.hxx>
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using namespace ::com::sun::star;
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static std::ostream& operator<<(std::ostream& rStream, const KernArray& rArray)
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{
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if (rArray.empty())
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{
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rStream << "{ }";
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return rStream;
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}
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rStream << "{ ";
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for (size_t i = 0; i < rArray.size() - 1; i++)
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rStream << rArray[i] << ", ";
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rStream << rArray.back();
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rStream << " }";
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return rStream;
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}
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static std::ostream& operator<<(std::ostream& rStream, const std::vector<sal_Bool>& rVec)
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{
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if (rVec.empty())
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{
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rStream << "{ }";
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return rStream;
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}
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rStream << "{ ";
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for (size_t i = 0; i < rVec.size() - 1; i++)
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rStream << std::boolalpha << bool(rVec[i]) << ", ";
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rStream << std::boolalpha << bool(rVec.back());
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rStream << " }";
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return rStream;
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}
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#include <test/bootstrapfixture.hxx>
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class CanvasTest : public test::BootstrapFixture
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{
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public:
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CanvasTest()
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: BootstrapFixture(true, false)
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{
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}
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};
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CPPUNIT_TEST_FIXTURE(CanvasTest, testComposite)
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{
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ScopedVclPtrInstance<WorkWindow> pWin(nullptr, WB_STDWORK);
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uno::Reference<rendering::XCanvas> xCanvas = pWin->GetOutDev()->GetCanvas();
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CPPUNIT_ASSERT(xCanvas.is());
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// a huge canvas ...
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Size aSize(1, 1);
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uno::Reference<rendering::XBitmap> xBitmap = xCanvas->getDevice()->createCompatibleAlphaBitmap(
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vcl::unotools::integerSize2DFromSize(aSize));
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CPPUNIT_ASSERT(xBitmap.is());
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uno::Reference<rendering::XBitmapCanvas> xBitmapCanvas(xBitmap, uno::UNO_QUERY);
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CPPUNIT_ASSERT(xBitmapCanvas.is());
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BitmapEx aBitmapEx;
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{
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// clear the canvas and basic sanity check ...
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xBitmapCanvas->clear();
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CPPUNIT_ASSERT(aBitmapEx.Create(xBitmapCanvas, aSize));
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CPPUNIT_ASSERT(aBitmapEx.IsAlpha());
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CPPUNIT_ASSERT(!aBitmapEx.GetAlphaMask().IsEmpty());
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}
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{
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// render something
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rendering::RenderState aDefaultState;
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uno::Sequence<double> aRedTransparent{ 1.0, // R
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0.0, // G
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0.0, // B
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0.5 }; // A
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aDefaultState.DeviceColor = aRedTransparent;
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#if 0
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// words fail me to describe the sheer beauty of allocating a UNO
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// object to represent a polygon, and manually handling the ViewState
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// and there being no public helper for this - to render ... a rectangle.
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XCachedPrimitive fillPolyPolygon( [in] XPolyPolygon2D xPolyPolygon, [in] ViewState aViewState, [in] RenderState aRenderState )
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#endif
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}
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}
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CPPUNIT_TEST_FIXTURE(CanvasTest, testTdf155810)
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{
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GDIMetaFile aInputMetaFile, aOutputMetaFile;
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KernArray aDXArray;
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std::vector<sal_Bool> aKashidaArray;
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// First create a meta file with a text array action that has Kashida adjustments.
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{
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ScopedVclPtrInstance<VirtualDevice> pDev;
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vcl::Font aFont(u"Noto Naskh Arabic"_ustr, u"Regular"_ustr, Size(0, 72));
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pDev->SetFont(aFont);
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aInputMetaFile.Record(pDev.get());
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OUString aText(u"خالد"_ustr);
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pDev->GetTextArray(aText, &aDXArray);
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auto nKashida = 200;
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aDXArray[0] += nKashida;
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aDXArray[2] += nKashida;
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aKashidaArray = { true, false, true, false };
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pDev->DrawTextArray(Point(0, 0), aText, aDXArray, aKashidaArray, 0, -1);
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aInputMetaFile.Stop();
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}
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// Then draw it using canvas
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{
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ScopedVclPtrInstance<VirtualDevice> pDev;
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aOutputMetaFile.Record(pDev.get());
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auto xCanvas = pDev->GetCanvas();
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CPPUNIT_ASSERT(xCanvas.is());
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auto pCanvas = cppcanvas::VCLFactory::createCanvas(xCanvas);
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auto pRenderer = cppcanvas::VCLFactory::createRenderer(pCanvas, aInputMetaFile, {});
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pRenderer->draw();
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aOutputMetaFile.Stop();
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}
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// Then check that the text array drawn by the canvas renderer didn’t loose
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// the Kashida insertion positions.
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{
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auto pInputAction = aInputMetaFile.GetAction(aInputMetaFile.GetActionSize() - 1);
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auto pOutputAction = aOutputMetaFile.GetAction(aOutputMetaFile.GetActionSize() - 2);
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CPPUNIT_ASSERT_EQUAL(MetaActionType::TEXTARRAY, pInputAction->GetType());
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CPPUNIT_ASSERT_EQUAL(pInputAction->GetType(), pOutputAction->GetType());
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MetaTextArrayAction* pInputTextAction = static_cast<MetaTextArrayAction*>(pInputAction);
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MetaTextArrayAction* pOutputTextAction = static_cast<MetaTextArrayAction*>(pOutputAction);
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CPPUNIT_ASSERT_EQUAL(pInputTextAction->GetDXArray(), aDXArray);
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CPPUNIT_ASSERT_EQUAL(pInputTextAction->GetDXArray(), pOutputTextAction->GetDXArray());
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CPPUNIT_ASSERT_EQUAL(pInputTextAction->GetKashidaArray(), aKashidaArray);
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CPPUNIT_ASSERT_EQUAL(pInputTextAction->GetKashidaArray(),
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pOutputTextAction->GetKashidaArray());
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}
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// Now, test drawSubset
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{
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ScopedVclPtrInstance<VirtualDevice> pDev;
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aOutputMetaFile.Clear();
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aOutputMetaFile.Record(pDev.get());
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auto xCanvas = pDev->GetCanvas();
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CPPUNIT_ASSERT(xCanvas.is());
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auto pCanvas = cppcanvas::VCLFactory::createCanvas(xCanvas);
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auto pRenderer = cppcanvas::VCLFactory::createRenderer(pCanvas, aInputMetaFile, {});
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pRenderer->drawSubset(1, 3);
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aOutputMetaFile.Stop();
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}
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{
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auto pOutputAction = aOutputMetaFile.GetAction(aOutputMetaFile.GetActionSize() - 2);
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CPPUNIT_ASSERT_EQUAL(MetaActionType::TEXTARRAY, pOutputAction->GetType());
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MetaTextArrayAction* pOutputTextAction = static_cast<MetaTextArrayAction*>(pOutputAction);
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std::vector<sal_Bool> aSubsetKashidaArray({ false, true });
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CPPUNIT_ASSERT_EQUAL(aSubsetKashidaArray, pOutputTextAction->GetKashidaArray());
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}
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}
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CPPUNIT_PLUGIN_IMPLEMENT();
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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