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| -rw-r--r-- | basegfx/test/clipstate.cxx | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/basegfx/test/clipstate.cxx b/basegfx/test/clipstate.cxx new file mode 100644 index 000000000..44e64b8c2 --- /dev/null +++ b/basegfx/test/clipstate.cxx @@ -0,0 +1,153 @@ +/* -*- 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> + +#include <basegfx/utils/b2dclipstate.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/polygon/b2dpolypolygon.hxx> + +using namespace ::basegfx; + +namespace basegfx2d +{ + +class clipstate : public CppUnit::TestFixture +{ +private: + utils::B2DClipState aUnion1; + utils::B2DClipState aUnion2; + utils::B2DClipState aIntersect; + utils::B2DClipState aXor; + utils::B2DClipState aSubtract; + +public: + void setUp() override + { + B2DRange aCenter(100, 100, -100, -100); + B2DRange aNorth(-10, -110, 10, -90); + B2DRange aWest(-110, -10, -90, 10); + B2DRange aSouth(-10, 110, 10, 90); + B2DRange aEast(110, -10, 90, 10); + + aUnion1.unionRange(aCenter); + aUnion1.unionRange(aNorth); + aUnion1.unionRange(aWest); + aUnion1.unionRange(aSouth); + aUnion1.unionRange(aEast); + + aUnion2.makeNull(); + aUnion2.unionRange(aCenter); + aUnion2.unionRange(aNorth); + aUnion2.unionRange(aWest); + aUnion2.unionRange(aSouth); + aUnion2.unionRange(aEast); + + aIntersect.intersectRange(aCenter); + aIntersect.intersectRange(aNorth); + aIntersect.intersectRange(aWest); + aIntersect.intersectRange(aSouth); + aIntersect.intersectRange(aEast); + + aXor.makeNull(); + aXor.xorRange(aCenter); + aXor.xorRange(aNorth); + aXor.xorRange(aWest); + aXor.xorRange(aSouth); + aXor.xorRange(aEast); + + aSubtract.intersectRange(aCenter); + aSubtract.subtractRange(aNorth); + aSubtract.subtractRange(aWest); + aSubtract.subtractRange(aSouth); + aSubtract.subtractRange(aEast); + } + + void verifyPoly(const char* sName, const char* sSvg, const utils::B2DClipState& toTest) const + { +#if OSL_DEBUG_LEVEL > 2 + fprintf(stderr, "%s - svg:d=\"%s\"\n", + sName, OUStringToOString( + basegfx::utils::exportToSvgD(toTest.getClipPoly(), true, true, false), + RTL_TEXTENCODING_UTF8).getStr() ); +#endif + + B2DPolyPolygon aTmp1; + CPPUNIT_ASSERT_MESSAGE(sName, + utils::importFromSvgD( + aTmp1, OUString::createFromAscii(sSvg), false, nullptr)); + + const OUString aSvg= + utils::exportToSvgD(toTest.getClipPoly(), true, true, false); + B2DPolyPolygon aTmp2; + CPPUNIT_ASSERT_MESSAGE(sName, + utils::importFromSvgD( + aTmp2, aSvg, false, nullptr)); + + CPPUNIT_ASSERT_EQUAL_MESSAGE( + sName, + aTmp1, aTmp2); + } + + void verifySimpleRange() + { + const char* const unionSvg="m100 10v90h-90v10h-20v-10h-90v-90h-10v-20h10v-90h90v-10h20v10h90v90h10v20z"; + const char* const intersectSvg="m-100 10v-20h10v20zm90 90v-10h20v10zm0-190v-10h20v10zm100 100v-20h10v20z"; + const char* const xorSvg="m-100 10h10v-20h-10zm90 90h20v-10h-20zm0-190h20v-10h-20zm100 100h10v-20h-10z" + "m10 0v90h-90v10h-20v-10h-90v-90h-10v-20h10v-90h90v-10h20v10h90v90h10v20z"; + const char* const subtractSvg="m-90 10v-20h-10v-90h90v10h20v-10h90v90h-10v20h10v90h-90v-10h-20v10h-90v-90z"; + + CPPUNIT_ASSERT_MESSAGE("cleared clip stays empty under union operation", + aUnion1.isCleared()); + verifyPoly("union", unionSvg, aUnion2); + verifyPoly("intersect", intersectSvg, aIntersect); + verifyPoly("xor", xorSvg, aXor); + verifyPoly("subtract", subtractSvg, aSubtract); + } + + void verifyMixedClips() + { + utils::B2DClipState aMixedClip; + + const char unionSvg[]="m100 10v90h-90v10h-20v-10h-90v-90h-10v-20h10v-90h90v-10h20v10h90v90h10v20z"; + + B2DPolyPolygon aTmp1; + CPPUNIT_ASSERT(utils::importFromSvgD(aTmp1, unionSvg, false, nullptr)); + + aMixedClip.intersectPolyPolygon(aTmp1); + aMixedClip.subtractRange(B2DRange(-20,-150,20,0)); + aMixedClip.subtractRange(B2DRange(-150,-20,0,20)); + aMixedClip.xorRange(B2DRange(-150,-150,150,150)); + + const char* const mixedClipSvg="m0 0v20h-100v80h90v10h20v-10h90v-90h10v-20h-10v-90h-80v100zm-20-20v-80h-80v80zm-130 170v-300h300v300z"; + verifyPoly("mixed clip", mixedClipSvg, aMixedClip); + } + + CPPUNIT_TEST_SUITE(clipstate); + CPPUNIT_TEST(verifySimpleRange); + CPPUNIT_TEST(verifyMixedClips); + CPPUNIT_TEST_SUITE_END(); +}; + +CPPUNIT_TEST_SUITE_REGISTRATION(basegfx2d::clipstate); +} // namespace basegfx2d + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |