/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the test suite of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 as published by the Free Software ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include #include #include class tst_QWMatrix : public QObject { Q_OBJECT private slots: void mapRect_data(); void mapToPolygon_data(); void mapRect(); void operator_star_qwmatrix(); void assignments(); void mapToPolygon(); void translate(); void scale(); void mapPolygon(); private: void mapping_data(); }; void tst_QWMatrix::mapRect_data() { mapping_data(); } void tst_QWMatrix::mapToPolygon_data() { mapping_data(); } void tst_QWMatrix::mapping_data() { //create the testtable instance and define the elements QTest::addColumn("matrix"); QTest::addColumn("src"); QTest::addColumn("res"); //next we fill it with data // identity QTest::newRow( "identity" ) << QMatrix( 1, 0, 0, 1, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 10, 20, 30, 40 ) ); // scaling QTest::newRow( "scale 0" ) << QMatrix( 2, 0, 0, 2, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 20, 40, 60, 80 ) ); QTest::newRow( "scale 1" ) << QMatrix( 10, 0, 0, 10, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 100, 200, 300, 400 ) ); // mirroring QTest::newRow( "mirror 0" ) << QMatrix( -1, 0, 0, 1, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -40, 20, 30, 40 ) ); QTest::newRow( "mirror 1" ) << QMatrix( 1, 0, 0, -1, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 10, -60, 30, 40 ) ); QTest::newRow( "mirror 2" ) << QMatrix( -1, 0, 0, -1, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -40, -60, 30, 40 ) ); QTest::newRow( "mirror 3" ) << QMatrix( -2, 0, 0, -2, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -80, -120, 60, 80 ) ); QTest::newRow( "mirror 4" ) << QMatrix( -10, 0, 0, -10, 0, 0 ) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -400, -600, 300, 400 ) ); QTest::newRow( "mirror 5" ) << QMatrix( -1, 0, 0, 1, 0, 0 ) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -30, 0, 30, 40 ) ); QTest::newRow( "mirror 6" ) << QMatrix( 1, 0, 0, -1, 0, 0 ) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( 0, -40, 30, 40 ) ); QTest::newRow( "mirror 7" ) << QMatrix( -1, 0, 0, -1, 0, 0 ) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -30, -40, 30, 40 ) ); QTest::newRow( "mirror 8" ) << QMatrix( -2, 0, 0, -2, 0, 0 ) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -60, -80, 60, 80 ) ); QTest::newRow( "mirror 9" ) << QMatrix( -10, 0, 0, -10, 0, 0 ) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -300, -400, 300, 400 ) ); const auto rotate = [](qreal degrees) { const qreal rad = qDegreesToRadians(degrees); return QMatrix(std::cos(rad), -std::sin(rad), std::sin(rad), std::cos(rad), 0, 0); }; // rotations QTest::newRow( "rot 0 a" ) << rotate(0.) << QRect( 0, 0, 30, 40 ) << QPolygon ( QRect( 0, 0, 30, 40 ) ); QTest::newRow( "rot 0 b" ) << rotate(0.00001f) << QRect( 0, 0, 30, 40 ) << QPolygon ( QRect( 0, 0, 30, 40 ) ); QTest::newRow( "rot 0 c" ) << rotate(0.) << QRect( 10, 20, 30, 40 ) << QPolygon ( QRect( 10, 20, 30, 40 ) ); QTest::newRow( "rot 0 d" ) << rotate(0.00001f) << QRect( 10, 20, 30, 40 ) << QPolygon ( QRect( 10, 20, 30, 40 ) ); #if 0 const auto rotScale = [](qreal degrees, qreal scale) { const qreal rad = qDegreesToRadians(degrees); return QMatrix(scale * std::cos(rad), -scale * std::sin(rad), scale * std::sin(rad), scale * std::cos(rad), 0, 0); }; // rotations with scaling QTest::newRow( "rotscale 90 a" ) << rotScale(90., 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( 0, -299, 400, 300 ) ); QTest::newRow( "rotscale 90 b" ) << rotScale(90.00001, 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( 0, -299, 400, 300 ) ); QTest::newRow( "rotscale 90 c" ) << rotScale(90., 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 200, -399, 400, 300 ) ); QTest::newRow( "rotscale 90 d" ) << rotScale(90.00001, 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 200, -399, 400, 300 ) ); QTest::newRow( "rotscale 180 a" ) << rotScale(180., 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -299, -399, 300, 400 ) ); QTest::newRow( "rotscale 180 b" ) << rotScale(180.000001, 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -299, -399, 300, 400 ) ); QTest::newRow( "rotscale 180 c" ) << rotScale(180., 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -399, -599, 300, 400 ) ); QTest::newRow( "rotscale 180 d" ) << rotScale(180.000001, 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -399, -599, 300, 400 ) ); QTest::newRow( "rotscale 270 a" ) << rotScale(270., 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -399, 00, 400, 300 ) ); QTest::newRow( "rotscale 270 b" ) << rotScale(270.0000001, 10) << QRect( 0, 0, 30, 40 ) << QPolygon( QRect( -399, 00, 400, 300 ) ); QTest::newRow( "rotscale 270 c" ) << rotScale(270., 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -599, 100, 400, 300 ) ); QTest::newRow( "rotscale 270 d" ) << rotScale(270.000001, 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -599, 100, 400, 300 ) ); // rotations that are not multiples of 90 degrees. mapRect returns the bounding rect here. QTest::newRow( "rot 45 a" ) << rotate(45) << QRect( 0, 0, 10, 10 ) << QPolygon( QRect( 0, -7, 14, 14 ) ); QTest::newRow( "rot 45 b" ) << rotate(45) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 21, -14, 49, 49 ) ); QTest::newRow( "rot 45 c" ) << rotScale(45, 10) << QRect( 0, 0, 10, 10 ) << QPolygon( QRect( 0, -70, 141, 141 ) ); QTest::newRow( "rot 45 d" ) << rotScale(45, 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( 212, -141, 495, 495 ) ); QTest::newRow( "rot -45 a" ) << rotate(-45) << QRect( 0, 0, 10, 10 ) << QPolygon( QRect( -7, 0, 14, 14 ) ); QTest::newRow( "rot -45 b" ) << rotate(-45) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -35, 21, 49, 49 ) ); QTest::newRow( "rot -45 c" ) << rotScale(-45, 10) << QRect( 0, 0, 10, 10 ) << QPolygon( QRect( -70, 0, 141, 141 ) ); QTest::newRow( "rot -45 d" ) << rotScale(-45, 10) << QRect( 10, 20, 30, 40 ) << QPolygon( QRect( -353, 212, 495, 495 ) ); #endif } void tst_QWMatrix::mapRect() { QFETCH( QMatrix, matrix ); QFETCH( QRect, src ); // qDebug( "got src: %d/%d (%d/%d), matrix=[ %f %f %f %f %f %f ]", // src.x(), src.y(), src.width(), src.height(), // matrix.m11(), matrix.m12(), matrix.m21(), matrix.m22(), matrix.dx(), matrix.dy() ); QTEST( QPolygon( matrix.mapRect(src) ), "res" ); } void tst_QWMatrix::operator_star_qwmatrix() { QMatrix m1( 2, 3, 4, 5, 6, 7 ); QMatrix m2( 3, 4, 5, 6, 7, 8 ); QMatrix result1x2( 21, 26, 37, 46, 60, 74 ); QMatrix result2x1( 22, 29, 34, 45, 52, 68); QMatrix product12 = m1*m2; QMatrix product21 = m2*m1; QVERIFY( product12==result1x2 ); QVERIFY( product21==result2x1 ); } void tst_QWMatrix::assignments() { QMatrix m; m.scale(2, 3); m.rotate(45); m.shear(4, 5); QMatrix c1(m); QCOMPARE(m.m11(), c1.m11()); QCOMPARE(m.m12(), c1.m12()); QCOMPARE(m.m21(), c1.m21()); QCOMPARE(m.m22(), c1.m22()); QCOMPARE(m.dx(), c1.dx()); QCOMPARE(m.dy(), c1.dy()); QMatrix c2 = m; QCOMPARE(m.m11(), c2.m11()); QCOMPARE(m.m12(), c2.m12()); QCOMPARE(m.m21(), c2.m21()); QCOMPARE(m.m22(), c2.m22()); QCOMPARE(m.dx(), c2.dx()); QCOMPARE(m.dy(), c2.dy()); } void tst_QWMatrix::mapToPolygon() { QFETCH( QMatrix, matrix ); QFETCH( QRect, src ); QFETCH( QPolygon, res ); QCOMPARE( matrix.mapToPolygon( src ), res ); } void tst_QWMatrix::translate() { QMatrix m( 1, 2, 3, 4, 5, 6 ); QMatrix res2( m ); QMatrix res( 1, 2, 3, 4, 75, 106 ); m.translate( 10, 20 ); QVERIFY( m == res ); m.translate( -10, -20 ); QVERIFY( m == res2 ); } void tst_QWMatrix::scale() { QMatrix m( 1, 2, 3, 4, 5, 6 ); QMatrix res2( m ); QMatrix res( 10, 20, 60, 80, 5, 6 ); m.scale( 10, 20 ); QVERIFY( m == res ); m.scale( 1./10., 1./20. ); QVERIFY( m == res2 ); } void tst_QWMatrix::mapPolygon() { QPolygon poly; poly << QPoint(0, 0) << QPoint(1, 1) << QPoint(100, 1) << QPoint(1, 100) << QPoint(-1, -1) << QPoint(-1000, 1000); { QMatrix m; m.rotate(90); // rotating 90 degrees four times should result in original poly QPolygon mapped = m.map(m.map(m.map(m.map(poly)))); QCOMPARE(mapped, poly); QMatrix m2; m2.scale(10, 10); QMatrix m3; m3.scale(0.1, 0.1); mapped = m3.map(m2.map(poly)); QCOMPARE(mapped, poly); } { QMatrix m(1, 2, 3, 4, 5, 6); QPolygon mapped = m.map(poly); for (int i = 0; i < mapped.size(); ++i) QCOMPARE(mapped.at(i), m.map(poly.at(i))); } } QTEST_APPLESS_MAIN(tst_QWMatrix) #include "tst_qwmatrix.moc"