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qt5base-lts/tests/auto/gui/painting/qwmatrix/tst_qwmatrix.cpp
Jason McDonald e3640d1bdd Remove TESTED_CLASS/TESTED_FILES comments from tests. 
These comments were mostly empty or inaccurate.  Appropriate naming of
tests and appropriate placement of tests within the directory tree
provide more reliable indicators of what is being tested.

Change-Id: Ib6bf373d9e79917e4ab1417ee5c1264a2c2d7027
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2011-12-06 02:19:25 +01:00

412 lines
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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qmatrix.h>
#include <math.h>
#include <qpolygon.h>
Q_DECLARE_METATYPE(QRect)
class tst_QWMatrix : public QObject
{
Q_OBJECT
public:
tst_QWMatrix();
virtual ~tst_QWMatrix();
public slots:
void init();
void cleanup();
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();
};
Q_DECLARE_METATYPE(QMatrix)
Q_DECLARE_METATYPE(QPolygon)
tst_QWMatrix::tst_QWMatrix()
{
}
tst_QWMatrix::~tst_QWMatrix()
{
}
void tst_QWMatrix::init()
{
// No initialisation is required
}
void tst_QWMatrix::cleanup()
{
// No cleanup is required.
}
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<QMatrix>("matrix");
QTest::addColumn<QRect>("src");
QTest::addColumn<QPolygon>("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 ) );
#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
#define M_PI 3.14159265897932384626433832795f
#endif
// rotations
float deg = 0.;
QTest::newRow( "rot 0 a" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon ( QRect( 0, 0, 30, 40 ) );
deg = 0.00001f;
QTest::newRow( "rot 0 b" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon ( QRect( 0, 0, 30, 40 ) );
deg = 0.;
QTest::newRow( "rot 0 c" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon ( QRect( 10, 20, 30, 40 ) );
deg = 0.00001f;
QTest::newRow( "rot 0 d" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon ( QRect( 10, 20, 30, 40 ) );
#if 0
// rotations
deg = 90.;
QTest::newRow( "rotscale 90 a" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( 0, -299, 400, 300 ) );
deg = 90.00001;
QTest::newRow( "rotscale 90 b" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( 0, -299, 400, 300 ) );
deg = 90.;
QTest::newRow( "rotscale 90 c" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( 200, -399, 400, 300 ) );
deg = 90.00001;
QTest::newRow( "rotscale 90 d" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( 200, -399, 400, 300 ) );
deg = 180.;
QTest::newRow( "rotscale 180 a" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( -299, -399, 300, 400 ) );
deg = 180.000001;
QTest::newRow( "rotscale 180 b" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( -299, -399, 300, 400 ) );
deg = 180.;
QTest::newRow( "rotscale 180 c" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( -399, -599, 300, 400 ) );
deg = 180.000001;
QTest::newRow( "rotscale 180 d" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( -399, -599, 300, 400 ) );
deg = 270.;
QTest::newRow( "rotscale 270 a" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( -399, 00, 400, 300 ) );
deg = 270.0000001;
QTest::newRow( "rotscale 270 b" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 30, 40 )
<< QPolygon( QRect( -399, 00, 400, 300 ) );
deg = 270.;
QTest::newRow( "rotscale 270 c" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( -599, 100, 400, 300 ) );
deg = 270.000001;
QTest::newRow( "rotscale 270 d" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< 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.
deg = 45;
QTest::newRow( "rot 45 a" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 10, 10 )
<< QPolygon( QRect( 0, -7, 14, 14 ) );
QTest::newRow( "rot 45 b" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( 21, -14, 49, 49 ) );
QTest::newRow( "rot 45 c" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 10, 10 )
<< QPolygon( QRect( 0, -70, 141, 141 ) );
QTest::newRow( "rot 45 d" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( 212, -141, 495, 495 ) );
deg = -45;
QTest::newRow( "rot -45 a" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 10, 10 )
<< QPolygon( QRect( -7, 0, 14, 14 ) );
QTest::newRow( "rot -45 b" ) << QMatrix( cos( M_PI*deg/180. ), -sin( M_PI*deg/180. ),
sin( M_PI*deg/180. ), cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 10, 20, 30, 40 )
<< QPolygon( QRect( -35, 21, 49, 49 ) );
QTest::newRow( "rot -45 c" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< QRect( 0, 0, 10, 10 )
<< QPolygon( QRect( -70, 0, 141, 141 ) );
QTest::newRow( "rot -45 d" ) << QMatrix( 10*cos( M_PI*deg/180. ), -10*sin( M_PI*deg/180. ),
10*sin( M_PI*deg/180. ), 10*cos( M_PI*deg/180. ), 0, 0 )
<< 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()
{
#if 0
// Left out until the matrix multiply operator behaves properly..
QMatrix m1( 2, 3, 4, 5, 6, 7 );
QMatrix m2( 3, 4, 5, 6, 7, 8 );
QMatrix result1x2( 21, 26, 37, 46, 44, 75 );
QMatrix result2x1( 22, 29, 34, 45, 53, 80);
QMatrix product12 = m1*m2;
QMatrix product21 = m2*m1;
QVERIFY( product12==result1x2 );
QVERIFY( product21==result2x1 );
#else
QSKIP( "Not tested with Qt versions since the operator is broken.." );
#endif
}
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"
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