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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*/
#include <test/bootstrapfixture.hxx>
#include <vcl/virdev.hxx>
#include <vcl/BitmapReadAccess.hxx>
#include <vcl/graphicfilter.hxx>
#include <vcl/metaact.hxx>
#include <vcl/gdimtf.hxx>
#include <tools/stream.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/PolygonStrokePrimitive2D.hxx>
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
#include <drawinglayer/processor2d/processor2dtools.hxx>
#include <cppcanvas/vclfactory.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
using namespace drawinglayer;
using namespace com::sun::star;
class VclMetaFileProcessor2DTest : public test::BootstrapFixture
{
VclPtr<VirtualDevice> mVclDevice;
uno::Reference<rendering::XCanvas> mCanvas;
// if enabled - check the result images with:
// "xdg-open ./workdir/CppunitTest/drawinglayer_processors.test.core/"
static constexpr const bool mbExportBitmap = false;
void exportDevice(const OUString& filename, const VclPtr<VirtualDevice>& device)
{
if (mbExportBitmap)
{
BitmapEx aBitmapEx(device->GetBitmapEx(Point(0, 0), device->GetOutputSizePixel()));
SvFileStream aStream(filename, StreamMode::WRITE | StreamMode::TRUNC);
GraphicFilter::GetGraphicFilter().compressAsPNG(aBitmapEx, aStream);
}
}
public:
VclMetaFileProcessor2DTest()
: BootstrapFixture(true, false)
{
}
virtual void tearDown() override
{
mVclDevice.clear();
mCanvas = uno::Reference<rendering::XCanvas>();
BootstrapFixture::tearDown();
}
void setupCanvas(const Size& size, Color backgroundColor = COL_WHITE, bool alpha = false)
{
mVclDevice = alpha ? VclPtr<VirtualDevice>::Create(DeviceFormat::WITH_ALPHA)
: VclPtr<VirtualDevice>::Create(DeviceFormat::WITHOUT_ALPHA);
mVclDevice->SetOutputSizePixel(size);
mVclDevice->SetBackground(Wallpaper(backgroundColor));
mVclDevice->Erase();
mCanvas = mVclDevice->GetCanvas();
CPPUNIT_ASSERT(mCanvas.is());
}
// Test drawing a dotted line in Impress presentation mode.
void testTdf136957()
{
// Impress presentation mode first draws the slide to a metafile.
GDIMetaFile metafile;
// I got these values by adding debug output to cppcanvas::internal::ImplRenderer::ImplRenderer().
metafile.SetPrefMapMode(MapMode(MapUnit::Map100thMM));
metafile.SetPrefSize(Size(14548, 3350));
ScopedVclPtrInstance<VirtualDevice> metadevice;
metafile.Record(metadevice);
drawinglayer::geometry::ViewInformation2D view;
std::unique_ptr<processor2d::BaseProcessor2D> processor(
processor2d::createProcessor2DFromOutputDevice(*metadevice, view));
CPPUNIT_ASSERT(processor);
// Match the values Impress uses.
basegfx::B2DPolygon polygon = { { 15601, 0 }, { 15602, 5832 } };
attribute::LineAttribute lineAttributes(
basegfx::BColor(0.047058823529411764, 0.19607843137254902, 0.17254901960784313), 35,
basegfx::B2DLineJoin::Miter, css::drawing::LineCap_ROUND);
attribute::StrokeAttribute strokeAttributes({ 0.35, 69.65 });
rtl::Reference<primitive2d::PolygonStrokePrimitive2D> strokePrimitive(
new primitive2d::PolygonStrokePrimitive2D(polygon, lineAttributes, strokeAttributes));
primitive2d::Primitive2DContainer primitives;
primitives.push_back(primitive2d::Primitive2DReference(strokePrimitive));
processor->process(primitives);
metafile.Stop();
metafile.WindStart();
// Now verify that the metafile has the one PolyLine action with the right dashing.
int lineActionCount = 0;
for (std::size_t i = 0; i < metafile.GetActionSize(); ++i)
{
const MetaAction* metaAction = metafile.GetAction(i);
if (metaAction->GetType() == MetaActionType::POLYLINE)
{
const MetaPolyLineAction* action
= static_cast<const MetaPolyLineAction*>(metaAction);
CPPUNIT_ASSERT_EQUAL(35.0, action->GetLineInfo().GetWidth());
CPPUNIT_ASSERT_EQUAL(LineStyle::Dash, action->GetLineInfo().GetStyle());
CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), action->GetLineInfo().GetDashCount());
CPPUNIT_ASSERT_EQUAL(0.35, action->GetLineInfo().GetDashLen());
CPPUNIT_ASSERT_EQUAL(sal_uInt16(0), action->GetLineInfo().GetDotCount());
CPPUNIT_ASSERT_EQUAL(0.0, action->GetLineInfo().GetDotLen());
CPPUNIT_ASSERT_EQUAL(69.65, action->GetLineInfo().GetDistance());
lineActionCount++;
}
}
CPPUNIT_ASSERT_EQUAL(1, lineActionCount);
// Now draw the metafile using canvas and verify that the line is drawn.
setupCanvas(Size(1920, 1080));
cppcanvas::CanvasSharedPtr cppCanvas = cppcanvas::VCLFactory::createCanvas(mCanvas);
// I got these matrices from a breakpoint in drawing the polyline, and walking up
// the stack to the canvas code.
cppCanvas->setTransformation(
basegfx::B2DHomMatrix(0.056662828121770453, 0, 0, 0, 0.056640419947506564, 0));
cppcanvas::RendererSharedPtr renderer = cppcanvas::VCLFactory::createRenderer(
cppCanvas, metafile, cppcanvas::Renderer::Parameters());
renderer->setTransformation(basegfx::B2DHomMatrix(14548, 0, -2, 0, 3350, 3431));
CPPUNIT_ASSERT(renderer->draw());
exportDevice("test-tdf136957", mVclDevice);
Bitmap bitmap = mVclDevice->GetBitmap(Point(), Size(1920, 1080));
BitmapScopedReadAccess access(bitmap);
// There should be a dotted line, without the fix it wouldn't be there, so check
// there's a sufficient amount of non-white pixels and that's the line.
int nonWhiteCount = 0;
for (tools::Long y = 193; y <= 524; ++y)
for (tools::Long x = 883; x <= 885; ++x)
if (access->GetColor(y, x) != COL_WHITE)
++nonWhiteCount;
CPPUNIT_ASSERT_GREATER(100, nonWhiteCount);
}
CPPUNIT_TEST_SUITE(VclMetaFileProcessor2DTest);
CPPUNIT_TEST(testTdf136957);
CPPUNIT_TEST_SUITE_END();
};
CPPUNIT_TEST_SUITE_REGISTRATION(VclMetaFileProcessor2DTest);
CPPUNIT_PLUGIN_IMPLEMENT();
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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