9bf9fea0af
The size of the whole gradient is getDefinitionRange(), while getOutputRange() gives the area of it to draw. Change-Id: I85dd7fe51bcc9c332a6fb0e6748d5ac89266b910 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/115923 Tested-by: Jenkins Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
89 lines
3.7 KiB
C++
89 lines
3.7 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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*/
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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/graphicfilter.hxx>
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#include <tools/stream.hxx>
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#include <drawinglayer/geometry/viewinformation2d.hxx>
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#include <drawinglayer/primitive2d/fillgradientprimitive2d.hxx>
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#include <drawinglayer/processor2d/baseprocessor2d.hxx>
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#include <drawinglayer/processor2d/processorfromoutputdevice.hxx>
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using namespace drawinglayer;
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class VclPixelProcessor2DTest : public test::BootstrapFixture
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{
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// if enabled - check the result images with:
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// "xdg-open ./workdir/CppunitTest/drawinglayer_processors.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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VclPixelProcessor2DTest()
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: BootstrapFixture(true, false)
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{
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}
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// Test that drawing only a part of a gradient draws the proper part of it.
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void testTdf139000()
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{
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ScopedVclPtr<VirtualDevice> device = VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT);
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device->SetOutputSizePixel(Size(100, 200));
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device->SetBackground(Wallpaper(COL_RED));
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device->Erase();
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drawinglayer::geometry::ViewInformation2D view;
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std::unique_ptr<processor2d::BaseProcessor2D> processor(
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processor2d::createBaseProcessor2DFromOutputDevice(*device, view));
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CPPUNIT_ASSERT(processor);
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basegfx::B2DRange definitionRange(0, 0, 100, 200);
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basegfx::B2DRange outputRange(0, 100, 100, 200); // Paint only lower half of the gradient.
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attribute::FillGradientAttribute attributes(attribute::GradientStyle::Linear, 0, 0, 0, 0,
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COL_WHITE.getBColor(), COL_BLACK.getBColor());
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rtl::Reference<primitive2d::FillGradientPrimitive2D> gradientPrimitive(
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new primitive2d::FillGradientPrimitive2D(outputRange, definitionRange, attributes));
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primitive2d::Primitive2DContainer primitives;
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primitives.push_back(primitive2d::Primitive2DReference(gradientPrimitive));
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processor->process(primitives);
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exportDevice("test-tdf139000.png", device);
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Bitmap bitmap = device->GetBitmap(Point(), device->GetOutputSizePixel());
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Bitmap::ScopedReadAccess access(bitmap);
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// The upper half should keep its red background color.
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CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_RED), access->GetColor(Point(0, 99)));
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// First line of the gradient should not be the start color, but something halfway.
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CPPUNIT_ASSERT_LESS(static_cast<sal_uInt16>(16),
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access->GetColor(Point(0, 100)).GetColorError(COL_GRAY));
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// Last line of the gradient should be the end color, or close.
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CPPUNIT_ASSERT_LESS(static_cast<sal_uInt16>(16),
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access->GetColor(Point(0, 199)).GetColorError(COL_BLACK));
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}
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CPPUNIT_TEST_SUITE(VclPixelProcessor2DTest);
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CPPUNIT_TEST(testTdf139000);
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CPPUNIT_TEST_SUITE_END();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(VclPixelProcessor2DTest);
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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