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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the test suite of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 |
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43 #include <QtTest/QtTest> |
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44 |
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45 #include <qpolygon.h> |
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46 #include <qpainterpath.h> |
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47 #include <math.h> |
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48 |
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49 #include <qpainter.h> |
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50 #include <qdialog.h> |
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51 |
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52 |
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53 |
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54 //TESTED_CLASS= |
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55 //TESTED_FILES=gui/painting/qpolygon.h gui/painting/qpolygon.cpp |
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56 |
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57 class tst_QPolygon : public QObject |
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58 { |
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59 Q_OBJECT |
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60 |
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61 public: |
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62 tst_QPolygon(); |
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63 |
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64 private slots: |
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65 void makeEllipse(); |
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66 }; |
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67 |
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68 tst_QPolygon::tst_QPolygon() |
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69 { |
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70 } |
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71 |
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72 void tst_QPolygon::makeEllipse() |
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73 { |
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74 // create an ellipse with R1 = R2 = R, i.e. a circle |
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75 QPolygon pa; |
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76 const int R = 50; // radius |
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77 QPainterPath path; |
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78 path.addEllipse(0, 0, 2*R, 2*R); |
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79 pa = path.toSubpathPolygons().at(0).toPolygon(); |
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80 |
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81 int i; |
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82 // make sure that all points are R+-1 away from the center |
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83 bool err = FALSE; |
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84 for (i = 1; i < pa.size(); i++) { |
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85 QPoint p = pa.at( i ); |
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86 double r = sqrt( pow( double(p.x() - R), 2.0 ) + pow( double(p.y() - R), 2.0 ) ); |
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87 // ### too strict ? at least from visual inspection it looks |
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88 // quite odd around the main axes. 2.0 passes easily. |
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89 err |= ( qAbs( r - double(R) ) > 2.0 ); |
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90 } |
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91 QVERIFY( !err ); |
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92 } |
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93 |
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94 QTEST_APPLESS_MAIN(tst_QPolygon) |
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95 #include "tst_qpolygon.moc" |