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author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /tests/auto/qtransform | |
download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 |
Long live Qt for S60!
Diffstat (limited to 'tests/auto/qtransform')
-rw-r--r-- | tests/auto/qtransform/.gitignore | 1 | ||||
-rw-r--r-- | tests/auto/qtransform/qtransform.pro | 7 | ||||
-rw-r--r-- | tests/auto/qtransform/tst_qtransform.cpp | 777 |
3 files changed, 785 insertions, 0 deletions
diff --git a/tests/auto/qtransform/.gitignore b/tests/auto/qtransform/.gitignore new file mode 100644 index 0000000..f1da016 --- /dev/null +++ b/tests/auto/qtransform/.gitignore @@ -0,0 +1 @@ +tst_qtransform diff --git a/tests/auto/qtransform/qtransform.pro b/tests/auto/qtransform/qtransform.pro new file mode 100644 index 0000000..298feb2 --- /dev/null +++ b/tests/auto/qtransform/qtransform.pro @@ -0,0 +1,7 @@ +load(qttest_p4) +HEADERS += +SOURCES += tst_qtransform.cpp + +unix:!mac:!symbian*:LIBS+=-lm + + diff --git a/tests/auto/qtransform/tst_qtransform.cpp b/tests/auto/qtransform/tst_qtransform.cpp new file mode 100644 index 0000000..8516ddb --- /dev/null +++ b/tests/auto/qtransform/tst_qtransform.cpp @@ -0,0 +1,777 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> +#include "qtransform.h" +#include <math.h> +#include <qpolygon.h> +#include <qdebug.h> + +Q_DECLARE_METATYPE(QRect) + +//TESTED_CLASS= +//TESTED_FILES= + +class tst_QTransform : public QObject +{ + Q_OBJECT + +public: + tst_QTransform(); + virtual ~tst_QTransform(); + + +public slots: + void init(); + void cleanup(); +private slots: + void mapRect_data(); + void operator_star_qrect_data(); + void mapToPolygon_data(); + void mapRect(); + void operator_star_qrect(); + void assignments(); + void mapToPolygon(); + void translate(); + void scale(); + void matrix(); + void testOffset(); + void types(); + void scalarOps(); + void transform(); + void mapEmptyPath(); + void boundingRect(); + void controlPointRect(); + void inverted_data(); + void inverted(); + void projectivePathMapping(); + void mapInt(); + +private: + void mapping_data(); +}; + +Q_DECLARE_METATYPE(QTransform) +Q_DECLARE_METATYPE(QPolygon) + +tst_QTransform::tst_QTransform() +{ +} + +tst_QTransform::~tst_QTransform() +{ +} + +void tst_QTransform::init() +{ + // No initialisation is required +} + +void tst_QTransform::cleanup() +{ + // No cleanup is required. +} + +#ifdef Q_OS_WIN32 +#define M_PI 3.14159265897932384626433832795f +#endif + +void tst_QTransform::mapRect_data() +{ + mapping_data(); + + // rotations that are not multiples of 90 degrees. mapRect returns the bounding rect here. + qreal deg = -45; + QTest::newRow( "rot 45 a" ) + << QTransform().rotate(deg) + << QRect( 0, 0, 10, 10 ) + << QPolygon( QRect( 0, -7, 14, 14 ) ); + QTest::newRow( "rot 45 b" ) + << QTransform().rotate(deg) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 21, -14, 50, 49 ) ); + QTest::newRow( "rot 45 c" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 10, 10 ) + << QPolygon( QRect( 0, -71, 141, 142 ) ); + QTest::newRow( "rot 45 d" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 212, -141, 495, 495 ) ); + + deg = 45; + QTest::newRow( "rot -45 a" ) + << QTransform().rotate(deg) + << QRect( 0, 0, 10, 10 ) + << QPolygon( QRect( -7, 0, 14, 14 ) ); + QTest::newRow( "rot -45 b" ) + << QTransform().rotate(deg) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -35, 21, 49, 50 ) ); + QTest::newRow( "rot -45 c" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 10, 10 ) + << QPolygon( QRect( -71, 0, 142, 141 ) ); + QTest::newRow( "rot -45 d" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -354, 212, 495, 495 ) ); +} + +void tst_QTransform::operator_star_qrect_data() +{ + mapping_data(); +} + +void tst_QTransform::mapToPolygon_data() +{ + mapping_data(); +} + +void tst_QTransform::mapping_data() +{ + //create the testtable instance and define the elements + QTest::addColumn<QTransform>("matrix"); + QTest::addColumn<QRect>("src"); + QTest::addColumn<QPolygon>("res"); + + //next we fill it with data + + // identity + QTest::newRow( "identity" ) + << QTransform() + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 10, 20, 30, 40 ) ); + // scaling + QTest::newRow( "scale 0" ) + << QTransform().scale(2, 2) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 20, 40, 60, 80 ) ); + QTest::newRow( "scale 1" ) + << QTransform().scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 100, 200, 300, 400 ) ); + // mirroring + QTest::newRow( "mirror 0" ) + << QTransform().scale(-1, 1) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -40, 20, 30, 40 ) ); + QTest::newRow( "mirror 1" ) + << QTransform().scale(1, -1) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 10, -60, 30, 40 ) ); + QTest::newRow( "mirror 2" ) + << QTransform().scale(-1, -1) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -40, -60, 30, 40 ) ); + QTest::newRow( "mirror 3" ) + << QTransform().scale(-2, -2) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -80, -120, 60, 80 ) ); + QTest::newRow( "mirror 4" ) + << QTransform().scale(-10, -10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -400, -600, 300, 400 ) ); + QTest::newRow( "mirror 5" ) + << QTransform().scale(-1, 1) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -30, 0, 30, 40 ) ); + QTest::newRow( "mirror 6" ) + << QTransform().scale(1, -1) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( 0, -40, 30, 40 ) ); + QTest::newRow( "mirror 7" ) + << QTransform().scale(-1, -1) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -30, -40, 30, 40 ) ); + QTest::newRow( "mirror 8" ) + << QTransform().scale(-2, -2) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -60, -80, 60, 80 ) ); + QTest::newRow( "mirror 9" ) + << QTransform().scale(-10, -10) << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -300, -400, 300, 400 ) ); + + // rotations + float deg = 0.; + QTest::newRow( "rot 0 a" ) + << QTransform().rotate(deg) + << QRect( 0, 0, 30, 40 ) + << QPolygon ( QRect( 0, 0, 30, 40 ) ); + deg = 0.00001f; + QTest::newRow( "rot 0 b" ) + << QTransform().rotate(deg) + << QRect( 0, 0, 30, 40 ) + << QPolygon ( QRect( 0, 0, 30, 40 ) ); + deg = 0.; + QTest::newRow( "rot 0 c" ) + << QTransform().rotate(deg) + << QRect( 10, 20, 30, 40 ) + << QPolygon ( QRect( 10, 20, 30, 40 ) ); + deg = 0.00001f; + QTest::newRow( "rot 0 d" ) + << QTransform().rotate(deg) + << QRect( 10, 20, 30, 40 ) + << QPolygon ( QRect( 10, 20, 30, 40 ) ); + + // rotations + deg = -90.f; + QTest::newRow( "rotscale 90 a" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( 0, -300, 400, 300 ) ); + deg = -90.00001f; + QTest::newRow( "rotscale 90 b" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( 0, -300, 400, 300 ) ); + deg = -90.f; + QTest::newRow( "rotscale 90 c" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 200, -400, 400, 300 ) ); + deg = -90.00001f; + QTest::newRow( "rotscale 90 d" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( 200, -400, 400, 300 ) ); + + deg = 180.f; + QTest::newRow( "rotscale 180 a" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -300, -400, 300, 400 ) ); + deg = 180.000001f; + QTest::newRow( "rotscale 180 b" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -300, -400, 300, 400 ) ); + deg = 180.f; + QTest::newRow( "rotscale 180 c" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -400, -600, 300, 400 ) ); + deg = 180.000001f; + QTest::newRow( "rotscale 180 d" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -400, -600, 300, 400 ) ); + + deg = -270.f; + QTest::newRow( "rotscale 270 a" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -400, 0, 400, 300 ) ); + deg = -270.0000001f; + QTest::newRow( "rotscale 270 b" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 0, 0, 30, 40 ) + << QPolygon( QRect( -400, 0, 400, 300 ) ); + deg = -270.f; + QTest::newRow( "rotscale 270 c" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -600, 100, 400, 300 ) ); + deg = -270.000001f; + QTest::newRow( "rotscale 270 d" ) + << QTransform().rotate(deg).scale(10, 10) + << QRect( 10, 20, 30, 40 ) + << QPolygon( QRect( -600, 100, 400, 300 ) ); +} + +void tst_QTransform::mapRect() +{ + QFETCH( QTransform, matrix ); + QFETCH( QRect, src ); + QFETCH( QPolygon, res ); + QRect mapped = matrix.mapRect(src); + QCOMPARE( mapped, res.boundingRect().adjusted(0, 0, -1, -1) ); + + QRectF r = matrix.mapRect(QRectF(src)); + QRect ir(r.topLeft().toPoint(), r.bottomRight().toPoint() - QPoint(1, 1)); + QCOMPARE( mapped, ir ); +} + +void tst_QTransform::operator_star_qrect() +{ +#if 0 + QFETCH( QTransform, matrix ); + QFETCH( QRect, src ); + QFETCH( QPolygon, res ); + + QCOMPARE( (matrix * src), QRegion(res) ); +#endif +} + +void tst_QTransform::assignments() +{ + QTransform m; + m.scale(2, 3); + m.rotate(45); + m.shear(4, 5); + + QTransform 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()); + + QTransform 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_QTransform::mapToPolygon() +{ + QFETCH( QTransform, matrix ); + QFETCH( QRect, src ); + QFETCH( QPolygon, res ); + + QPolygon poly = matrix.mapToPolygon(src); + + // don't care about starting point + bool equal = false; + for (int i = 0; i < poly.size(); ++i) { + QPolygon rot; + for (int j = i; j < poly.size(); ++j) + rot << poly[j]; + for (int j = 0; j < i; ++j) + rot << poly[j]; + if (rot == res) + equal = true; + } + + QVERIFY(equal); +} + + +void tst_QTransform::translate() +{ + QTransform m( 1, 2, 3, 4, 5, 6 ); + QTransform res2( m ); + QTransform res( 1, 2, 3, 4, 75, 106 ); + m.translate( 10, 20 ); + QVERIFY( m == res ); + m.translate( -10, -20 ); + QVERIFY( m == res2 ); + QVERIFY( QTransform::fromTranslate( 0, 0 ).type() == QTransform::TxNone ); + QVERIFY( QTransform::fromTranslate( 10, 0 ).type() == QTransform::TxTranslate ); + QVERIFY( QTransform::fromTranslate( -1, 5 ) == QTransform().translate( -1, 5 )); + QVERIFY( QTransform::fromTranslate( 0, 0 ) == QTransform()); +} + +void tst_QTransform::scale() +{ + QTransform m( 1, 2, 3, 4, 5, 6 ); + QTransform res2( m ); + QTransform res( 10, 20, 60, 80, 5, 6 ); + m.scale( 10, 20 ); + QVERIFY( m == res ); + m.scale( 1./10., 1./20. ); + QVERIFY( m == res2 ); + QVERIFY( QTransform::fromScale( 1, 1 ).type() == QTransform::TxNone ); + QVERIFY( QTransform::fromScale( 2, 4 ).type() == QTransform::TxScale ); + QVERIFY( QTransform::fromScale( 2, 4 ) == QTransform().scale( 2, 4 )); + QVERIFY( QTransform::fromScale( 1, 1 ) == QTransform()); +} + +void tst_QTransform::matrix() +{ + QMatrix mat1; + mat1.scale(0.3, 0.7); + mat1.translate(53.3, 94.4); + mat1.rotate(45); + + QMatrix mat2; + mat2.rotate(33); + mat2.scale(0.6, 0.6); + mat2.translate(13.333, 7.777); + + QTransform tran1(mat1); + QTransform tran2(mat2); + QTransform dummy; + dummy.setMatrix(mat1.m11(), mat1.m12(), 0, + mat1.m21(), mat1.m22(), 0, + mat1.dx(), mat1.dy(), 1); + + QVERIFY(tran1 == dummy); + QVERIFY(tran1.inverted() == dummy.inverted()); + QVERIFY(tran1.inverted() == QTransform(mat1.inverted())); + QVERIFY(tran2.inverted() == QTransform(mat2.inverted())); + + QMatrix mat3 = mat1 * mat2; + QTransform tran3 = tran1 * tran2; + QVERIFY(QTransform(mat3) == tran3); + + /* QMatrix::operator==() doesn't use qFuzzyCompare(), which + * on win32-g++ results in a failure. So we work around it by + * calling QTranform::operator==(), which performs a fuzzy compare. */ + QCOMPARE(QTransform(mat3), QTransform(tran3.toAffine())); + + QTransform tranInv = tran1.inverted(); + QMatrix matInv = mat1.inverted(); + + QRect rect(43, 70, 200, 200); + QPoint pt(43, 66); + QVERIFY(tranInv.map(pt) == matInv.map(pt)); + QVERIFY(tranInv.map(pt) == matInv.map(pt)); + + QPainterPath path; + path.moveTo(55, 60); + path.lineTo(110, 110); + path.quadTo(220, 50, 10, 20); + path.closeSubpath(); + QVERIFY(tranInv.map(path) == matInv.map(path)); +} + +void tst_QTransform::testOffset() +{ + QTransform trans; + const QMatrix &aff = trans.toAffine(); + QCOMPARE((void*)(&aff), (void*)(&trans)); +} + +void tst_QTransform::types() +{ + QTransform m1; + QCOMPARE(m1.type(), QTransform::TxNone); + + m1.translate(1.0f, 0.0f); + QCOMPARE(m1.type(), QTransform::TxTranslate); + QCOMPARE(m1.inverted().type(), QTransform::TxTranslate); + + m1.scale(1.0f, 2.0f); + QCOMPARE(m1.type(), QTransform::TxScale); + QCOMPARE(m1.inverted().type(), QTransform::TxScale); + + m1.rotate(45.0f); + QCOMPARE(m1.type(), QTransform::TxRotate); + QCOMPARE(m1.inverted().type(), QTransform::TxRotate); + + m1.shear(0.5f, 0.25f); + QCOMPARE(m1.type(), QTransform::TxShear); + QCOMPARE(m1.inverted().type(), QTransform::TxShear); + + m1.rotate(45.0f, Qt::XAxis); + QCOMPARE(m1.type(), QTransform::TxProject); + m1.shear(0.5f, 0.25f); + QCOMPARE(m1.type(), QTransform::TxProject); + m1.rotate(45.0f); + QCOMPARE(m1.type(), QTransform::TxProject); + m1.scale(1.0f, 2.0f); + QCOMPARE(m1.type(), QTransform::TxProject); + m1.translate(1.0f, 0.0f); + QCOMPARE(m1.type(), QTransform::TxProject); + + QTransform m2(1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + -1.0f, -1.0f, 1.0f); + + QCOMPARE(m2.type(), QTransform::TxTranslate); + QCOMPARE((m1 * m2).type(), QTransform::TxProject); + + m1 *= QTransform(); + QCOMPARE(m1.type(), QTransform::TxProject); + + m1 *= QTransform(1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 1.0f, 0.0f, 1.0f); + QCOMPARE(m1.type(), QTransform::TxProject); + + m2.reset(); + QCOMPARE(m2.type(), QTransform::TxNone); + + m2.setMatrix(1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxNone); + + m2 *= QTransform(); + QCOMPARE(m2.type(), QTransform::TxNone); + + m2.setMatrix(2.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxScale); + m2 *= QTransform(); + QCOMPARE(m2.type(), QTransform::TxScale); + + m2.setMatrix(0.0f, 1.0f, 0.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxRotate); + m2 *= QTransform(); + QCOMPARE(m2.type(), QTransform::TxRotate); + + m2.setMatrix(1.0f, 0.0f, 0.5f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxProject); + m2 *= QTransform(); + QCOMPARE(m2.type(), QTransform::TxProject); + + m2.setMatrix(1.0f, 1.0f, 0.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxShear); + + m2 *= m2.inverted(); + QCOMPARE(m2.type(), QTransform::TxNone); + + m2.translate(5.0f, 5.0f); + m2.rotate(45.0f); + m2.rotate(-45.0f); + QCOMPARE(m2.type(), QTransform::TxTranslate); + + m2.scale(2.0f, 3.0f); + m2.shear(1.0f, 0.0f); + m2.shear(-1.0f, 0.0f); + QCOMPARE(m2.type(), QTransform::TxScale); + + m2 *= QTransform(1.0f, 1.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxShear); + + m2 *= QTransform(1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 1.0f, 0.0f, 1.0f); + QCOMPARE(m2.type(), QTransform::TxShear); + + QTransform m3(1.8f, 0.0f, 0.0f, + 0.0f, 1.8f, 0.0f, + 0.0f, 0.0f, 1.0f); + + QCOMPARE(m3.type(), QTransform::TxScale); + m3.translate(5.0f, 5.0f); + QCOMPARE(m3.type(), QTransform::TxScale); + QCOMPARE(m3.inverted().type(), QTransform::TxScale); +} + + +void tst_QTransform::scalarOps() +{ + QTransform t; + QCOMPARE(t.m11(), 1.); + QCOMPARE(t.m33(), 1.); + QCOMPARE(t.m21(), 0.); + + t = QTransform() + 3; + QCOMPARE(t.m11(), 4.); + QCOMPARE(t.m33(), 4.); + QCOMPARE(t.m21(), 3.); + + t = t - 3; + QCOMPARE(t.m11(), 1.); + QCOMPARE(t.m33(), 1.); + QCOMPARE(t.m21(), 0.); + QCOMPARE(t.isIdentity(), true); + + t += 3; + t = t * 2; + QCOMPARE(t.m11(), 8.); + QCOMPARE(t.m33(), 8.); + QCOMPARE(t.m21(), 6.); +} + +void tst_QTransform::transform() +{ + QTransform t; + t.rotate(30, Qt::YAxis); + t.translate(15, 10); + t.scale(2, 2); + t.rotate(30); + t.shear(0.5, 0.5); + + QTransform a, b, c, d, e; + a.rotate(30, Qt::YAxis); + b.translate(15, 10); + c.scale(2, 2); + d.rotate(30); + e.shear(0.5, 0.5); + + QCOMPARE(t, e * d * c * b * a); +} + +void tst_QTransform::mapEmptyPath() +{ + QPainterPath path; + path.moveTo(10, 10); + path.lineTo(10, 10); + QCOMPARE(QTransform().map(path), path); +} + +void tst_QTransform::boundingRect() +{ + QPainterPath path; + path.moveTo(10, 10); + path.lineTo(10, 10); + QCOMPARE(path.boundingRect(), QRectF(10, 10, 0, 0)); +} + +void tst_QTransform::controlPointRect() +{ + QPainterPath path; + path.moveTo(10, 10); + path.lineTo(10, 10); + QCOMPARE(path.controlPointRect(), QRectF(10, 10, 0, 0)); +} + +void tst_QTransform::inverted_data() +{ + QTest::addColumn<QTransform>("matrix"); + + QTest::newRow("identity") + << QTransform(); + + QTest::newRow("TxTranslate") + << QTransform().translate(200, 10); + + QTest::newRow("TxScale") + << QTransform().scale(5, 2); + + QTest::newRow("TxTranslate TxScale") + << QTransform().translate(100, -10).scale(40, 2); + + QTest::newRow("TxScale TxTranslate") + << QTransform().scale(40, 2).translate(100, -10); + + QTest::newRow("TxRotate") + << QTransform().rotate(40, Qt::ZAxis); + + QTest::newRow("TxRotate TxScale") + << QTransform().rotate(60, Qt::ZAxis).scale(2, 0.25); + + QTest::newRow("TxScale TxRotate") + << QTransform().scale(2, 0.25).rotate(30, Qt::ZAxis); + + QTest::newRow("TxRotate TxScale TxTranslate") + << QTransform().rotate(60, Qt::ZAxis).scale(2, 0.25).translate(200, -3000); + + QTest::newRow("TxRotate TxTranslate TxScale") + << QTransform().rotate(60, Qt::ZAxis).translate(200, -3000).scale(19, 77); + + QTest::newRow("TxShear") + << QTransform().shear(10, 10); + + QTest::newRow("TxShear TxRotate") + << QTransform().shear(10, 10).rotate(45, Qt::ZAxis); + + QTest::newRow("TxShear TxRotate TxScale") + << QTransform().shear(10, 10).rotate(45, Qt::ZAxis).scale(19, 81); + + QTest::newRow("TxTranslate TxShear TxRotate TxScale") + << QTransform().translate(150, -1).shear(10, 10).rotate(45, Qt::ZAxis).scale(19, 81); + + const qreal s = 500000; + + QTransform big; + big.scale(s, s); + + QTest::newRow("big") << big; + + QTransform small; + small.scale(1/s, 1/s); + + QTest::newRow("small") << small; +} + +void tst_QTransform::inverted() +{ + if (sizeof(qreal) != sizeof(double)) + QSKIP("precision error if qreal is not double", SkipAll); + + QFETCH(QTransform, matrix); + + const QTransform inverted = matrix.inverted(); + + QVERIFY(matrix.isIdentity() == inverted.isIdentity()); + QVERIFY(matrix.type() == inverted.type()); + + QVERIFY((matrix * inverted).isIdentity()); + QVERIFY((inverted * matrix).isIdentity()); +} + +void tst_QTransform::projectivePathMapping() +{ + QPainterPath path; + path.addRect(-50, -50, 100, 100); + + const QRectF view(0, 0, 1024, 1024); + + QVERIFY(view.intersects(path.boundingRect())); + + for (int i = 0; i < 85; i += 5) { + QTransform transform; + transform.translate(512, 512); + transform.rotate(i, Qt::YAxis); + + const QPainterPath mapped = transform.map(path); + + QVERIFY(view.intersects(mapped.boundingRect())); + QVERIFY(transform.inverted().mapRect(view).intersects(path.boundingRect())); + } +} + +void tst_QTransform::mapInt() +{ + int x = 0; + int y = 0; + + QTransform::fromTranslate(10, 10).map(x, y, &x, &y); + + QCOMPARE(x, 10); + QCOMPARE(y, 10); +} + +QTEST_APPLESS_MAIN(tst_QTransform) + + +#include "tst_qtransform.moc" |