ecec9edd5a
Nothing fancy, just a safety-net for a following refactoring. Change-Id: I5be87c86cd61e24bf96881d2485dd7560ea6184a Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
164 lines
4.4 KiB
C++
164 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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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 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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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 boundingRect_data();
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void boundingRect();
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void boundingRectF_data();
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void boundingRectF();
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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::boundingRect_data()
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{
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QTest::addColumn<QPolygon>("poly");
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QTest::addColumn<QRect>("brect");
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#define ROW(args, rect) \
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do { \
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QPolygon poly; \
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poly.setPoints args; \
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QTest::newRow(#args) << poly << QRect rect; \
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} while (0)
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QTest::newRow("empty") << QPolygon() << QRect(0, 0, 0, 0);
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ROW((1, 0,1), ( 0, 1, 1, 1));
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ROW((2, 0,1, 1,0), ( 0, 0, 2, 2));
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ROW((3, -1,1, -1,-1, 1,0), (-1,-1, 3, 3));
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#undef ROW
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}
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void tst_QPolygon::boundingRect()
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{
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QFETCH(QPolygon, poly);
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QFETCH(QRect, brect);
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QCOMPARE(poly.boundingRect(), brect);
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}
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namespace {
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struct MyPolygonF : QPolygonF
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{
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// QPolygonF doesn't have setPoints...
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void setPoints(int nPoints, int firstx, int firsty, ...) {
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va_list ap;
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reserve(nPoints);
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*this << QPointF(firstx, firsty);
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va_start(ap, firsty);
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while (--nPoints) {
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const int x = va_arg(ap, int);
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const int y = va_arg(ap, int);
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*this << QPointF(x, y);
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}
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va_end(ap);
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}
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};
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}
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void tst_QPolygon::boundingRectF_data()
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{
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QTest::addColumn<QPolygonF>("poly");
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QTest::addColumn<QRectF>("brect");
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#define ROW(args, rect) \
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do { \
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MyPolygonF poly; \
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poly.setPoints args; \
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QTest::newRow(#args) << QPolygonF(poly) << QRectF rect; \
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} while (0)
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QTest::newRow("empty") << QPolygonF() << QRectF(0, 0, 0, 0);
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ROW((1, 0,1), ( 0, 1, 0, 0));
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ROW((2, 0,1, 1,0), ( 0, 0, 1, 1));
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ROW((3, -1,1, -1,-1, 1,0), (-1,-1, 2, 2));
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#undef ROW
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}
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void tst_QPolygon::boundingRectF()
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{
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QFETCH(QPolygonF, poly);
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QFETCH(QRectF, brect);
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QCOMPARE(poly.boundingRect(), brect);
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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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