48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <qpolygon.h>
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#include <qpainterpath.h>
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#include <math.h>
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#include <qpainter.h>
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class tst_QPolygon : public QObject
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{
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Q_OBJECT
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public:
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tst_QPolygon();
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private slots:
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void makeEllipse();
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void swap();
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};
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tst_QPolygon::tst_QPolygon()
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{
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}
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void tst_QPolygon::makeEllipse()
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{
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// create an ellipse with R1 = R2 = R, i.e. a circle
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QPolygon pa;
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const int R = 50; // radius
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QPainterPath path;
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path.addEllipse(0, 0, 2*R, 2*R);
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pa = path.toSubpathPolygons().at(0).toPolygon();
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int i;
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// make sure that all points are R+-1 away from the center
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bool err = false;
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for (i = 1; i < pa.size(); i++) {
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QPoint p = pa.at( i );
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double r = sqrt( pow( double(p.x() - R), 2.0 ) + pow( double(p.y() - R), 2.0 ) );
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// ### too strict ? at least from visual inspection it looks
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// quite odd around the main axes. 2.0 passes easily.
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err |= ( qAbs( r - double(R) ) > 2.0 );
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}
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QVERIFY( !err );
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}
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void tst_QPolygon::swap()
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{
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QPolygon p1(QVector<QPoint>() << QPoint(0,0) << QPoint(10,10) << QPoint(-10,10));
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QPolygon p2(QVector<QPoint>() << QPoint(0,0) << QPoint( 0,10) << QPoint( 10,10) << QPoint(10,0));
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p1.swap(p2);
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QCOMPARE(p1.count(),4);
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QCOMPARE(p2.count(),3);
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}
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QTEST_APPLESS_MAIN(tst_QPolygon)
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#include "tst_qpolygon.moc"
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