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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/.
+ *
+ * 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/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygoncutter.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+
+using namespace ::basegfx;
+
+namespace basegfx2d
+{
+
+class genericclipper : public CppUnit::TestFixture
+{
+private:
+ B2DPolygon aSelfIntersecting;
+ B2DPolygon aShiftedRectangle;
+
+public:
+ // initialise your test code values here.
+ void setUp() override
+ {
+ aSelfIntersecting.append(B2DPoint(0, 0));
+ aSelfIntersecting.append(B2DPoint(0, 100));
+ aSelfIntersecting.append(B2DPoint(75, 100));
+ aSelfIntersecting.append(B2DPoint(75, 50));
+ aSelfIntersecting.append(B2DPoint(25, 50));
+ aSelfIntersecting.append(B2DPoint(25, 150));
+ aSelfIntersecting.append(B2DPoint(100,150));
+ aSelfIntersecting.append(B2DPoint(100,0));
+ aSelfIntersecting.setClosed(true);
+
+ aShiftedRectangle = utils::createPolygonFromRect(
+ B2DRange(0,90,20,150));
+ }
+
+
+ void validate(const char* pName,
+ const char* pValidSvgD,
+ B2DPolyPolygon (*pFunc)(const B2DPolyPolygon&, const B2DPolyPolygon&)) const
+ {
+ const B2DPolyPolygon aSelfIntersect(
+ utils::prepareForPolygonOperation(aSelfIntersecting));
+ const B2DPolyPolygon aRect(
+ utils::prepareForPolygonOperation(aShiftedRectangle));
+#if OSL_DEBUG_LEVEL > 2
+ fprintf(stderr, "%s input LHS - svg:d=\"%s\"\n",
+ pName, OUStringToOString(
+ basegfx::utils::exportToSvgD(
+ aSelfIntersect, true, true, false),
+ RTL_TEXTENCODING_UTF8).getStr() );
+ fprintf(stderr, "%s input RHS - svg:d=\"%s\"\n",
+ pName, OUStringToOString(
+ basegfx::utils::exportToSvgD(
+ aRect, true, true, false),
+ RTL_TEXTENCODING_UTF8).getStr() );
+#endif
+
+ const B2DPolyPolygon aRes=
+ pFunc(aSelfIntersect, aRect);
+
+#if OSL_DEBUG_LEVEL > 2
+ fprintf(stderr, "%s - svg:d=\"%s\"\n",
+ pName, OUStringToOString(
+ basegfx::utils::exportToSvgD(aRes, true, true, false),
+ RTL_TEXTENCODING_UTF8).getStr() );
+#endif
+
+ OUString aValid=OUString::createFromAscii(pValidSvgD);
+
+ CPPUNIT_ASSERT_EQUAL_MESSAGE(pName,
+ aValid, basegfx::utils::exportToSvgD(aRes, true, true, false));
+ }
+
+ void validateOr()
+ {
+ const char* const pValid="m0 0h100v150h-75v-50h-5v50h-20v-50-10zm75 100v-50h-50v50z";
+ validate("validateOr", pValid, &utils::solvePolygonOperationOr);
+ }
+
+ void validateXor()
+ {
+ const char* const pValid="m0 0h100v150h-75v-50h-5v50h-20v-50-10zm0 100h20v-10h-20zm75 0v-50h-50v50z";
+ validate("validateXor", pValid, &utils::solvePolygonOperationXor);
+ }
+
+ void validateAnd()
+ {
+ const char* const pValid="m0 100v-10h20v10z";
+ validate("validateAnd", pValid, &utils::solvePolygonOperationAnd);
+ }
+
+ void validateDiff()
+ {
+ const char* const pValid="m0 90v-90h100v150h-75v-50h-5v-10zm75 10v-50h-50v50z";
+ validate("validateDiff", pValid, &utils::solvePolygonOperationDiff);
+ }
+
+ void validateCrossover(const char* pName,
+ const char* pInputSvgD,
+ const char* pValidSvgD) const
+ {
+ OUString aInput=OUString::createFromAscii(pInputSvgD);
+ OUString aValid=OUString::createFromAscii(pValidSvgD);
+ B2DPolyPolygon aInputPoly, aValidPoly;
+
+ CPPUNIT_ASSERT(utils::importFromSvgD(aInputPoly, aInput, false, nullptr));
+ CPPUNIT_ASSERT(utils::importFromSvgD(aValidPoly, aValid, false, nullptr));
+
+ CPPUNIT_ASSERT_EQUAL_MESSAGE(
+ pName,
+ aValid,
+ basegfx::utils::exportToSvgD(
+ utils::solveCrossovers(aInputPoly), true, true, false));
+ }
+
+ void checkCrossoverSolver()
+ {
+ // partially intersecting polygons, with a common subsection
+ validateCrossover(
+ "partially intersecting",
+ "m0 0 v 5 h 3 h 1 h 1 h 1 v -2 v -3 z"
+ "m3 7 v -2 h 1 h 1 h 1 v -2 h 1 v 3 z",
+ "m0 0v5h3 1 1 1v-2-3zm3 7v-2h1 1 1v-2h1v3z");
+
+ // first polygon is identical to subset of second polygon
+ validateCrossover(
+ "full subset",
+ "m0 0 v 5 h 3 h 1 h 1 v -5 z"
+ "m3 10 v -5 h 1 h 1 v -5 h -5 v 5 h 3 z",
+ "m0 0v5h3 1 1v-5zm3 10v-5zm1-5h1v-5h-5v5h3z");
+
+ // first polygon is identical to subset of second polygon, but
+ // oriented in the opposite direction
+ validateCrossover(
+ "full subset, opposite direction",
+ "m0 0 v 5 h 3 h 1 h 1 v -5 z"
+ "m3 10 v -5 h -1 h -1 h -1 v -5 h 5 v 5 h 2 z",
+ "m0 0v5h1 1 1-1-1-1v-5h5v5-5zm4 5h1 2l-4 5v-5z");
+
+ // first polygon is identical to subset of second polygon, and
+ // has a curve segment (triggers different code path)
+ validateCrossover(
+ "full subset, plus curves",
+ "m0 0 v 5 h 3 h 1 h 1 c 2 0 2 0 0 -5 z"
+ "m3 10 v -5 h 1 h 1 c 2 0 2 0 0 -5 h -5 v 5 h 3 z",
+ "m0 0v5h3 1 1c2 0 2 0 0-5zm3 10v-5zm1-5h1c2 0 2 0 0-5h-5v5h3z");
+ }
+
+ // Change the following lines only, if you add, remove or rename
+ // member functions of the current class,
+ // because these macros are need by auto register mechanism.
+
+ CPPUNIT_TEST_SUITE(genericclipper);
+ CPPUNIT_TEST(validateOr);
+ CPPUNIT_TEST(validateXor);
+ CPPUNIT_TEST(validateAnd);
+ CPPUNIT_TEST(validateDiff);
+ CPPUNIT_TEST(checkCrossoverSolver);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(basegfx2d::genericclipper);
+} // namespace basegfx2d
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */