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qt5base-lts/tests/auto/gui/painting/qwmatrix/tst_qwmatrix.cpp
Jason McDonald 5635823e17 Remove "All rights reserved" line from license headers. 
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-30 03:54:59 +01:00

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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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