110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
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/* -*- 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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*/
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#include <test/bootstrapfixture.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/BitmapReadAccess.hxx>
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#include <vcl/canvastools.hxx>
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#include <vcl/graphicfilter.hxx>
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#include <tools/stream.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 <com/sun/star/rendering/CompositeOperation.hpp>
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using namespace ::com::sun::star;
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class CanvasTest : public test::BootstrapFixture
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{
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VclPtr<VirtualDevice> mVclDevice;
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uno::Reference<rendering::XCanvas> mCanvas;
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rendering::ViewState mViewState;
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rendering::RenderState mRenderState;
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uno::Sequence<double> mColorBlack;
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// if enabled - check the result images with:
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// "xdg-open ./workdir/CppunitTest/canvas_test.test.core/"
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static constexpr const bool mbExportBitmap = false;
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void exportDevice(const OUString& filename, const VclPtr<VirtualDevice>& device)
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{
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if (mbExportBitmap)
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{
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BitmapEx aBitmapEx(device->GetBitmapEx(Point(0, 0), device->GetOutputSizePixel()));
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SvFileStream aStream(filename, StreamMode::WRITE | StreamMode::TRUNC);
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GraphicFilter::GetGraphicFilter().compressAsPNG(aBitmapEx, aStream);
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}
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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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virtual void setUp() override
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{
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BootstrapFixture::setUp();
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mColorBlack = vcl::unotools::colorToStdColorSpaceSequence(COL_BLACK);
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// Geometry init
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geometry::AffineMatrix2D aUnit(1, 0, 0, 0, 1, 0);
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mViewState.AffineTransform = aUnit;
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mRenderState.AffineTransform = aUnit;
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mRenderState.DeviceColor = mColorBlack;
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mRenderState.CompositeOperation = rendering::CompositeOperation::OVER;
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}
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virtual void tearDown() override
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{
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mVclDevice.clear();
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mCanvas = uno::Reference<rendering::XCanvas>();
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BootstrapFixture::tearDown();
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}
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void setupCanvas(const Size& size, Color backgroundColor = COL_WHITE, bool alpha = false)
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{
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mVclDevice
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= alpha ? VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT, DeviceFormat::DEFAULT)
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: VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT);
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mVclDevice->SetOutputSizePixel(size);
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mVclDevice->SetBackground(Wallpaper(backgroundColor));
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mVclDevice->Erase();
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mCanvas = mVclDevice->GetCanvas();
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CPPUNIT_ASSERT(mCanvas.is());
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}
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void testDrawLine()
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{
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setupCanvas(Size(10, 10));
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mCanvas->drawLine(geometry::RealPoint2D(1, 1), geometry::RealPoint2D(9, 1), mViewState,
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mRenderState);
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exportDevice("test-draw-line.png", mVclDevice);
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Bitmap bitmap = mVclDevice->GetBitmap(Point(), Size(10, 10));
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Bitmap::ScopedReadAccess access(bitmap);
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// Canvas uses AA, which blurs the line, and it cannot be turned off,
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// so do not check the end points.
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CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), access->GetPixel(0, 0));
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CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK), access->GetPixel(1, 2));
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CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK), access->GetPixel(1, 8));
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}
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CPPUNIT_TEST_SUITE(CanvasTest);
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CPPUNIT_TEST(testDrawLine);
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CPPUNIT_TEST_SUITE_END();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(CanvasTest);
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CPPUNIT_PLUGIN_IMPLEMENT();
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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