Long live Qt for S60!

5 files changed, 2241 insertions, 0 deletions

diff --git a/tests/auto/qpathclipper/.gitignore b/tests/auto/qpathclipper/.gitignore
new file mode 100644
index 0000000..a689eef
--- /dev/null
+++ b/tests/auto/qpathclipper/.gitignore
@@ -0,0 +1 @@
+tst_qpathclipper
diff --git a/tests/auto/qpathclipper/paths.cpp b/tests/auto/qpathclipper/paths.cpp
new file mode 100644
index 0000000..b92b72d
--- /dev/null
+++ b/tests/auto/qpathclipper/paths.cpp
@@ -0,0 +1,734 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "paths.h"
+
+QPainterPath Paths::rect()
+{
+    QPainterPath path;
+
+    path.moveTo(45.885571, 62.857143);
+    path.lineTo(154.11442, 62.857143);
+    path.cubicTo(162.1236, 62.857143,
+                 168.57142, 70.260744,
+                 168.57142, 79.457144);
+    path.lineTo(168.57142, 123.4);
+    path.cubicTo(168.57142, 132.5964,
+                 162.1236,  140,
+                 154.11442, 140);
+    path.lineTo(45.885571, 140);
+    path.cubicTo(37.876394, 140,
+                 31.428572, 132.5964,
+                 31.428572, 123.4);
+    path.lineTo(31.428572, 79.457144);
+    path.cubicTo(31.428572,70.260744,
+                 37.876394,62.857143,
+                 45.885571,62.857143);
+    path.closeSubpath();
+    return path;
+}
+
+QPainterPath Paths::rect6()
+{
+    QPainterPath path;
+
+    path.moveTo(45.885571, 62.857143);
+    path.lineTo(154.11442, 62.857143);
+    path.cubicTo(162.1236, 62.857143,
+                 168.57142, 70.260744,
+                 168.57142, 79.457144);
+    path.lineTo(168.57142, 123.4);
+    path.cubicTo(168.57142, 132.5964,
+                 162.1236,  140,
+                 154.11442, 140);
+    path.lineTo(45.885571, 140);
+    path.closeSubpath();
+    return path;
+}
+
+
+QPainterPath Paths::heart()
+{
+    QPainterPath path;
+    path.moveTo(263.41570, 235.14588);
+    path.cubicTo(197.17570,235.14588,
+                 143.41575,288.90587,
+                 143.41575,355.14588);
+    path.cubicTo(143.41575, 489.90139,
+                 279.34890, 525.23318,
+                 371.97820, 658.45392);
+    path.cubicTo(459.55244,526.05056,
+                 600.54070,485.59932,
+                 600.54070,355.14588);
+    path.cubicTo(600.54070,288.90588, 546.78080,235.14587, 480.54070,235.14588);
+    path.cubicTo(432.49280,235.14588, 391.13910,263.51631, 371.97820,304.33338);
+    path.cubicTo(352.81740,263.51630, 311.46370,235.14587, 263.41570,235.14588);
+    path.closeSubpath();
+    return path;
+}
+
+
+QPainterPath Paths::body()
+{
+    QPainterPath path;
+    path.moveTo(62.500000,15.531250);
+    path.cubicTo(48.633197,15.531250, 37.374999,26.789445, 37.375000,40.656250);
+    path.cubicTo(37.375000,54.523053, 48.633195,65.781252, 62.500000,65.781250);
+    path.cubicTo(76.366803,65.781250, 87.624998,54.523052, 87.625000,40.656250);
+    path.cubicTo(87.625000,26.789447, 76.366802,15.531250, 62.500000,15.531250);
+    path.closeSubpath();
+    path.moveTo(54.437500,65.812500);
+    path.cubicTo(35.184750,65.812499, 19.687500,81.341002, 19.687500,100.59375);
+    path.lineTo(19.687500,155.68750);
+    path.cubicTo(19.687501,167.50351, 25.539122,177.88308, 34.500000,184.15625);
+    path.lineTo(34.500000,254.03125);
+    path.cubicTo(34.499999,257.03306, 46.990615,259.43748, 62.500000,259.43750);
+    path.cubicTo(78.009381,259.43751, 90.468750,257.03307, 90.468750,254.03125);
+    path.lineTo(90.468750,184.15625);
+    path.cubicTo(99.429633,177.88307, 105.28125,167.50352, 105.28125,155.68750);
+    path.lineTo(105.28125,100.59375);
+    path.cubicTo(105.28125,81.341000, 89.784000,65.812500, 70.531250,65.812500);
+    path.lineTo(54.437500,65.812500);
+    path.closeSubpath();
+        
+    return path;
+}
+
+
+QPainterPath Paths::mailbox()
+{
+    QPainterPath path;
+    path.moveTo(355.22951,136.82424);
+    path.lineTo(332.03629,112.56585);
+    path.lineTo(325.71086,57.501867);
+    path.cubicTo(325.71086,57.501867, 410.12308,19.428758, 427.45202,29.094560);
+    path.cubicTo(444.78096,38.760366, 443.62570,54.289660, 443.62570,54.289660);
+    path.lineTo(443.62570,100.11509);
+    path.lineTo(355.22951,136.82424);
+    path.closeSubpath();
+    
+    return path;
+}
+
+
+QPainterPath Paths::deer()
+{
+    QPainterPath path;
+
+    path.moveTo(39.88,31.658);
+    path.cubicTo(35.632,31.658, 31.398,31.004, 27.871,32.82);
+    path.cubicTo(25.015,34.29, 19.608,34.158, 16.297,34.158);
+    path.cubicTo(14.722,34.158, 17.755,37.718, 17.709,38.922);
+    path.cubicTo(17.578,42.396, 24.612,43.15, 26.755,44.058);
+    path.cubicTo(30.062,45.46, 28.682,47.701, 28.963,50.574);
+    path.cubicTo(29.715,58.243, 26.887,63.745, 24.182,70.589);
+    path.cubicTo(23.365,72.657, 21.772,75.56, 21.972,77.866);
+    path.cubicTo(22.333,82.029, 15.803,77.207, 13.894,76.535);
+    path.cubicTo(10.977,75.508, 5.507,74.071, 2.424,75.331);
+    path.cubicTo(-1.532,76.947, 0.076,80.491, 2.169,82.806);
+    path.cubicTo(6.17,87.234, 2.703,90.713, 3.895,95.363);
+    path.cubicTo(4.321,97.026, 11.682,104.683, 12.858,103.668);
+    path.cubicTo(16.706,100.347, 11.464,98.692, 10.105,96.164);
+    path.cubicTo(9.487,95.015, 8.616,83.742, 8.866,83.759);
+    path.cubicTo(10.018,83.837, 12.591,85.867, 13.671,86.392);
+    path.cubicTo(16.889,87.954, 20.066,89.63, 22.963,91.741);
+    path.cubicTo(29.156,94.47, 35.543,96.965, 42.102,98.676);
+    path.cubicTo(51.085,101.02, 59.407,102.003, 68.009,106.005);
+    path.cubicTo(72.92,108.289, 72.05,113.282, 75.744,117.004);
+    path.cubicTo(79.422,120.709, 84.733,123.053, 88.978,126.053);
+    path.cubicTo(92.402,128.473, 95.422,132.308, 97.334,135.998);
+    path.cubicTo(99.551,140.279, 99.071,146.004, 99.838,150.674);
+    path.cubicTo(100.369,153.91, 104.378,156.321, 106.302,158.859);
+    path.cubicTo(110.471,164.355, 109.86,155.112, 108.163,154.412);
+    path.cubicTo(104.97,153.094, 103.991,146.625, 103.812,143.439);
+    path.cubicTo(103.525,138.336, 105.568,134.331, 101.918,130.346);
+    path.cubicTo(95.104,122.907, 89.488,114.182, 94.711,103.742);
+    path.cubicTo(96.889,99.388, 91.191,95.497, 96.94,94.368);
+    path.cubicTo(99.551,93.856, 102.49,94.367, 104.326,92.034);
+    path.cubicTo(106.639,89.095, 105.063,85.343, 102.943,82.798);
+    path.cubicTo(102.686,82.417, 102.359,82.121, 101.962,81.909);
+    path.cubicTo(102.331,81.909, 101.923,86.98, 100.981,87.628);
+    path.cubicTo(98.868,89.082, 95.569,91.586, 92.88,91.672);
+    path.cubicTo(90.569,91.745, 86.738,89.184, 85.212,87.658);
+    path.cubicTo(84.092,86.538, 80.176,86.157, 78.598,85.83);
+    path.cubicTo(74.737,85.031, 71.741,84.326, 68.012,82.806);
+    path.cubicTo(63.318,80.893, 58.687,78.672, 54.555,75.71);
+    path.cubicTo(44.573,68.555, 42.755,56.146, 44.022,44.495);
+    path.cubicTo(44.295,41.987, 43.169,38.057, 44.617,35.915);
+    path.cubicTo(44.961,35.406, 46.52,35.553, 47.119,35.024);
+    path.cubicTo(47.882,34.35, 49.574,31.822, 49.878,30.792);
+    path.cubicTo(51.126,26.569, 44.36,32.002, 45.336,31.938);
+    path.cubicTo(43.861,32.036, 47.011,22.934, 47.191,22.574);
+    path.cubicTo(47.555,21.846, 52.489,13.123, 49.511,13.222);
+    path.cubicTo(47.643,13.284, 48.563,18.667, 46.354,18.227);
+    path.cubicTo(43.964,17.751, 40.522,11.396, 41.566,9.011);
+    path.cubicTo(43.4,4.819, 39.743,3.905, 39.214,7.564);
+    path.cubicTo(39.112,8.269, 40.893,13.438, 38.159,12.665);
+    path.cubicTo(35.335,11.866, 35.748,-0.125, 34.38,-8.0352391e-15);
+    path.cubicTo(31.991,0.219, 34.074,10.836, 33.361,12.176);
+    path.cubicTo(33.144,12.584, 29.68,8.66, 29.459,7.718);
+    path.cubicTo(28.48,3.558, 28.031,5.106, 26.87,7.752);
+    path.cubicTo(25.333,11.254, 37.159,17.423, 39.292,18.663);
+    path.cubicTo(40.993,19.651, 42.39,20.504, 42.973,22.48);
+    path.cubicTo(43.482,24.205, 44.098,26.568, 42.926,28.191);
+    path.cubicTo(42.092,29.346, 39.88,29.982, 39.88,31.658);
+    return path;
+}
+
+
+QPainterPath Paths::fire()
+{
+    QPainterPath path;
+
+    path.moveTo(362.83759,116.70426);
+    path.cubicTo(342.56574,131.59686, 300.71403,161.23127, 311.38454,218.12635);
+    path.cubicTo(322.05506,275.02144, 358.53432,301.66527, 328.90674,328.73285);
+    path.cubicTo(299.27916,355.80044, 251.48877,339.59410, 255.46042,288.61972);
+    path.cubicTo(258.22374,253.15368, 278.34141,205.10942, 278.34141,205.10942);
+    path.cubicTo(278.34141,205.10942, 234.02455,233.13427, 219.68939,254.01270);
+    path.cubicTo(205.35424,274.89113, 189.71452,330.07842, 208.58356,373.33974);
+    path.cubicTo(227.45261,416.60109, 316.46286,456.33444, 351.12048,514.32780);
+    path.cubicTo(374.10258,552.78425, 355.05815,613.59741, 310.80422,636.59310);
+    path.cubicTo(256.63287,664.74219, 299.16588,580.49238, 285.22551,523.86186);
+    path.cubicTo(273.46790,476.09839, 265.70022,445.12001, 188.03132,432.51681);
+    path.cubicTo(233.72591,465.34901, 242.16068,495.04075, 241.45928,524.11772);
+    path.cubicTo(240.78648,552.00862, 214.39595,634.57293, 177.39967,596.79021);
+    path.cubicTo(140.72642,559.33737, 214.27071,512.68654, 170.92945,471.62081);
+    path.cubicTo(174.73284,501.40284, 145.30515,514.98828, 131.55318,544.54392);
+    path.cubicTo(118.22673,573.18509, 123.55251,610.30651, 139.07596,645.41379);
+    path.cubicTo(181.14122,740.38745, 266.95518,726.23964, 208.75321,797.88229);
+    path.cubicTo(164.01134,852.95649, 162.90150,907.45084, 205.60384,970.81121);
+    path.cubicTo(240.06795,1021.9479, 371.11663,1060.7652, 432.20697,960.93460);
+    path.cubicTo(501.87852,820.00694, 357.14883,780.33174, 386.29974,732.84721);
+    path.cubicTo(405.70205,701.24238, 472.56601,668.86516, 501.09199,644.21233);
+    path.cubicTo(564.18184,587.55421, 561.84437,497.32621, 522.74229,471.25817);
+    path.cubicTo(530.19030,501.05022, 514.99952,542.79339, 483.67099,551.29691);
+    path.cubicTo(423.41173,567.65308, 458.18351,411.79373, 564.02075,393.61925);
+    path.cubicTo(530.91135,366.44998, 501.31413,367.33484, 454.91711,379.11707);
+    path.cubicTo(397.61736,393.57908, 407.64322,315.40944, 494.34643,262.67861);
+    path.cubicTo(549.19500,229.32101, 499.11573,147.63302, 491.66772,136.46100);
+    path.cubicTo(485.38713,213.93294, 435.43515,233.35601, 409.98053,235.72292);
+    path.cubicTo(375.27049,238.95043, 377.84554,214.33812, 396.75003,178.92950);
+    path.cubicTo(416.21172,142.47722, 448.15395,89.429942, 376.51366,44.060977);
+    path.cubicTo(388.13560,71.270572, 395.93673,94.012962, 362.83759,116.70426);
+    path.closeSubpath();
+    return path;
+}
+
+
+QPainterPath Paths::lips()
+{
+    QPainterPath path;
+
+    path.moveTo(177.02257,176.65905);
+    path.cubicTo(154.11895,176.65905, 136.56711,174.32266, 110.41800,155.61729);
+    path.cubicTo(83.894106,136.64382, 70.456540,123.78263, 44.264608,101.00195);
+    path.cubicTo(36.985036,94.670475, 11.607987,76.421189, 0.62503194,72.562763);
+    path.cubicTo(22.778258,60.937514, 46.738237,46.430325, 55.325084,40.325054);
+    path.cubicTo(79.128700,23.400628, 99.203004,0.53294656, 116.15033,0.61582047);
+    path.cubicTo(129.59137,0.68308215, 144.54744,18.524567, 177.02257,18.524567);
+    path.cubicTo(210.04060,18.524567, 224.45379,0.68308215, 237.89483,0.61582047);
+    path.cubicTo(254.84216,0.53294656, 274.91646,23.400628, 298.72008,40.325054);
+    path.cubicTo(307.30692,46.430325, 331.26690,60.937514, 353.42013,72.562763);
+    path.cubicTo(342.43717,76.421189, 317.06013,94.670475, 309.78055,101.00195);
+    path.cubicTo(283.58862,123.78263, 270.15105,136.64382, 243.62716,155.61729);
+    path.cubicTo(217.47805,174.32266, 199.38332,176.65905, 177.02257,176.65905);
+    path.closeSubpath();
+        
+    return path;
+}
+
+QPainterPath Paths::bezier1()
+{
+    QPainterPath path;
+    path.moveTo(50, 50);
+    path.cubicTo(100, 100,
+                 520, 90,
+                 400,400);
+    return path;
+}
+
+QPainterPath Paths::bezier2()
+{
+    QPainterPath path;
+    path.moveTo(200,200);
+    path.cubicTo(200,125, 500,100, 500,500);
+    
+    return path;
+}
+
+QPainterPath Paths::random1()
+{
+    QPainterPath path;
+    
+    path.moveTo(65.714286,91.428571);
+    path.lineTo(217.14286, 102.85714);
+    path.cubicTo(219.04762, 106.66666,
+                    220.95238, 110.47619,
+                    222.85714,114.28571);
+    path.cubicTo(231.2679,  131.10723,
+                    214.72525, 138.24185,
+                    211.42857,151.42857);
+    path.cubicTo(207.25902, 168.10676,
+                    213.24674, 175.8441,
+                    217.14286,191.42857);
+    path.cubicTo(221.088, 207.20915,
+                    201.21538,205.71429,
+                    188.57143,205.71429);
+    path.cubicTo(170.18303, 205.71429,
+                    161.42918, 197.50045,
+                    145.71429,185.71429);
+    path.cubicTo(113.93441, 161.87938,
+                    132.73699, 182.37652,
+                    137.14286, 200);
+    path.cubicTo(140.37884, 212.94392,
+                    128.50252, 217.16009,
+                    117.14286, 220);
+    path.cubicTo(98.323209, 224.70491,
+                    91.206108, 205.41767,
+                    82.857143, 194.28571);
+    path.cubicTo(77.307286, 186.8859,
+                    84.541768, 158.97578,
+                    85.714286, 154.28571);
+    path.cubicTo(87.843677, 145.76815,
+                    67.066253, 132.78054,
+                    60       , 125.71429);
+    path.cubicTo(54.074503, 119.78879,
+                    64.646395,  95.700137,
+                    65.714286,  91.428571);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::random2()
+{
+    QPainterPath path;
+    
+    path.moveTo(314.28571,160);
+    path.cubicTo(434.28571,125.71429,
+                 505.71429,200,
+                 505.71429,200);
+    path.lineTo(454.28571, 305.71429);
+    path.lineTo(337.14286, 302.85714);
+    path.cubicTo(337.14286, 302.85714,
+                 308.57143, 340,
+                 337.14286, 302.85714);
+    path.cubicTo(365.71429, 265.71429,
+                 200,       420,
+                 300,       291.42857);
+    path.cubicTo(400,       162.85714,
+                 254.28571, 240,
+                 254.28571, 240);
+    path.cubicTo(254.28571,240,
+                 240,71.428571,
+                 288.57143,134.28571);
+    path.cubicTo(337.14286,197.14286,
+                 314.28571,162.85714,
+                 314.28571,160);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::bezier3()
+{
+    QPainterPath path;
+    path.moveTo(295, 217);
+    path.cubicTo(364,  57,
+                 377,  34,
+                 456, 222);
+    return path;
+}
+
+QPainterPath Paths::bezier4()
+{
+    QPainterPath path;
+    path.moveTo(200, 125);
+    path.cubicTo(200, 125,
+                 623, 126,
+                 623, 126);
+    return path;
+}
+
+QPainterPath Paths::heart2()
+{
+    QPainterPath path;
+    path.moveTo(263.41570, 235.14588);
+    path.cubicTo(197.17570,235.14588,
+                 143.41575,288.90587,
+                 143.41575,355.14588);
+    path.cubicTo(143.41575, 489.90139,
+                 279.34890, 525.23318,
+                 371.97820, 658.45392);
+    return path;
+}
+
+QPainterPath Paths::rect2()
+{
+    QPainterPath path;
+
+    path.addRect(80, 80, 100, 100);
+
+    return path;
+}
+
+
+QPainterPath Paths::rect3()
+{
+    QPainterPath path;
+
+    path.addRect(100, 40, 100, 100);
+
+    return path;
+}
+
+
+QPainterPath Paths::rect4()
+{
+    QPainterPath path;
+
+    path.addRect(100, 0, 200, 200);
+
+    path.addRect(120, 20, 80, 80);
+
+    return path;
+}
+
+QPainterPath Paths::simpleCurve()
+{
+    QPainterPath path;
+    path.moveTo(74, 160);
+    path.cubicTo( 74, 160,
+                 274, 406,
+                 425, 166);
+    path.cubicTo(577, -73,
+                  77, 160,
+                  74, 160);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::simpleCurve2()
+{
+    QPainterPath path;
+    path.moveTo(54, 140);
+    path.cubicTo( 54, 140,
+                 254, 386,
+                 405, 146);
+    path.cubicTo(557, -93,
+                  57, 140,
+                  54, 140);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::frame1()
+{
+    QPainterPath path;
+    path.moveTo(190.71429, 40.933613);
+    path.lineTo(683.57141, 40.933613);
+    path.cubicTo(697.42141, 40.933613,
+                 708.57141, 52.083613,
+                 708.57141, 65.933613);
+    path.lineTo(708.57141, 375.93361);
+    path.cubicTo(708.57141, 389.78361,
+                 697.42141, 400.93361,
+                 683.57141, 400.93361);
+    path.lineTo(190.71429, 400.93361);
+    path.cubicTo(176.86429, 400.93361,
+                 165.71429, 389.78361,
+                 165.71429,375.93361);
+    path.lineTo(165.71429, 65.933613);
+    path.cubicTo(165.71429,52.083613,
+                 176.86429,40.933613,
+                 190.71429,40.933613);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::frame2()
+{
+    QPainterPath path;
+    path.moveTo(55.114286, 103.79076);
+    path.lineTo(187.74288, 103.79076);
+    path.cubicTo(192.95048, 103.79076,
+                 197.14288, 107.88102,
+                 197.14288, 112.96176);
+    path.lineTo(197.14288, 131.76261);
+    path.cubicTo(197.14288, 136.84335,
+                 192.95048, 140.93361,
+                 187.74288, 140.93361);
+    path.lineTo(55.114286, 140.93361);
+    path.cubicTo(49.906687, 140.93361,
+                 45.714287, 136.84335,
+                 45.714287, 131.76261);
+    path.lineTo(45.714287, 112.96176);
+    path.cubicTo(45.714287, 107.88102,
+                 49.906687, 103.79076,
+                 55.114286, 103.79076);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::frame3()
+{
+    QPainterPath path;
+    path.moveTo(200,80.933609);
+    path.lineTo(682.85715,80.933609);
+    path.lineTo(682.85715,446.6479);
+    path.lineTo(200,446.6479);
+    path.lineTo(200,80.933609);
+    path.closeSubpath();
+    return path;
+}
+
+QPainterPath Paths::frame4()
+{
+    QPainterPath path;
+
+    path.moveTo(88.571434,206.64789);
+    path.lineTo(231.42858,206.64789);
+    path.lineTo(231.42858,246.64789);
+    path.lineTo(88.571434,246.64789);
+    path.lineTo(88.571434,206.64789);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::simpleCurve3()
+{
+    QPainterPath path;
+
+    path.moveTo(0, 0);
+    path.cubicTo(400,0,
+                 0,400,
+                 0,0);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::rect5()
+{
+    QPainterPath path;
+
+    path.addRect(0, 0, 200, 200);
+
+    return path;
+}
+
+QPainterPath Paths::triangle1()
+{
+    QPainterPath path;
+
+    path.moveTo(0, 0);
+    path.lineTo(60, 0);
+    path.lineTo(60, 60);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::triangle2()
+{  
+    QPainterPath path;
+
+    path.moveTo(0, 120);
+    path.lineTo(60, 120);
+    path.lineTo(60, 60);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::node()
+{
+    QRectF m_rect;
+    m_rect.setWidth(150);
+    m_rect.setHeight(100);
+
+    QPainterPath shape;
+    shape.addRoundRect(m_rect, 25);
+
+    const int conWidth = 10;
+    const int xOffset  = 7;
+
+    QRectF rect(xOffset,
+                conWidth + 20,
+                conWidth, conWidth);
+    shape.addEllipse(rect);
+    //shape.addRect(rect);
+
+    rect = QRectF(m_rect.right() - conWidth - xOffset,
+                  conWidth + 20,
+                  conWidth, conWidth);
+    shape.addEllipse(rect);
+    //shape.addRect(rect);
+    return shape;
+}
+
+QPainterPath Paths::interRect()
+{
+    QPainterPath path;
+    path.addRect(132, 42, 1, 1);
+    return path;
+}
+
+QPainterPath Paths::bezierFlower()
+{
+    QPainterPath path;
+    path.moveTo(0, 0);
+    path.cubicTo(0, 50, -25, 75, -50, 100);
+    path.closeSubpath();
+    path.moveTo(0, 0);
+    path.cubicTo(0, 50, 25, 75, 50, 100);
+    path.closeSubpath();
+
+    path.moveTo(0, 0);
+    path.cubicTo(0, -50, -25, -75, -50, -100);
+    path.closeSubpath();
+    path.moveTo(0, 0);
+    path.cubicTo(0, -50, 25, -75, 50, -100);
+    path.closeSubpath();
+
+    path.moveTo(0, 0);
+    path.cubicTo(-50, 0, -75, -25, -100, -50);
+    path.closeSubpath();
+    path.moveTo(0, 0);
+    path.cubicTo(-50, 0, -75, 25, -100, 50);
+    path.closeSubpath();
+
+    path.moveTo(0, 0);
+    path.cubicTo(50, 0, 75, -25, 100, -50);
+    path.closeSubpath();
+    path.moveTo(0, 0);
+    path.cubicTo(50, 0, 75, 25, 100, 50);
+    path.closeSubpath();
+
+    return path;
+}
+
+QPainterPath Paths::clover()
+{
+    QPainterPath path;
+    path.moveTo(50, 50);
+    path.lineTo(100, 25);
+    path.lineTo(100, 75);
+    path.lineTo(0, 25);
+    path.lineTo(0, 75);
+    path.lineTo(50, 50);
+    path.lineTo(75, 0);
+    path.lineTo(25, 0);
+    path.lineTo(75, 100);
+    path.lineTo(25, 100);
+    path.lineTo(50, 50);
+    return path;
+}
+
+QPainterPath Paths::ellipses()
+{
+    QPainterPath path;
+    path.addEllipse(0, 0, 100, 100);
+    path.addEllipse(0, 20, 100, 60);
+    path.addEllipse(0, 40, 100, 20);
+    return path;
+}
+
+QPainterPath Paths::windingFill()
+{
+    QPainterPath path;
+    path.addRect(0, 0, 100, 100);
+    path.addRect(50, 25, 100, 50);
+    path.setFillRule(Qt::WindingFill);
+    return path;
+}
+
+QPainterPath Paths::oddEvenFill()
+{
+    QPainterPath path;
+    path.addRect(0, 0, 100, 100);
+    path.moveTo(50, 25);
+    path.lineTo(50, 75);
+    path.lineTo(150, 75);
+    path.lineTo(150, 25);
+    path.lineTo(50, 25);
+    path.setFillRule(Qt::OddEvenFill);
+    return path;
+}
+
+QPainterPath Paths::squareWithHole()
+{
+    QPainterPath path;
+    path.addRect(0, 0, 100, 100);
+    path.addRect(30, 30, 40, 40);
+    return path;
+}
+
+QPainterPath Paths::circleWithHole()
+{
+        QPainterPath path;
+        path.addEllipse(0, 0, 100, 100);
+        path.addEllipse(30, 30, 40, 40);
+        return path;
+}
+
+QPainterPath Paths::bezierQuadrant()
+{
+    QPainterPath path;
+    int d = 1;
+    for (int i = 25; i <= 85; i += 10) {
+        path.moveTo(50, 100);
+        path.cubicTo(50, i, 50 + i* d / 2, 0, 50 + 50 * d, 0);
+        path.lineTo(50 + 50 * d, 100);
+        path.closeSubpath();
+    }
+
+    QMatrix m(2, 0,
+            0, 2,
+            0, 0);
+
+    return path;
+}
diff --git a/tests/auto/qpathclipper/paths.h b/tests/auto/qpathclipper/paths.h
new file mode 100644
index 0000000..6f6c888
--- /dev/null
+++ b/tests/auto/qpathclipper/paths.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef PATHS_H
+#define PATHS_H
+
+#include <QPainterPath>
+
+namespace Paths
+{
+    QPainterPath rect();
+    QPainterPath heart();
+    QPainterPath body();
+    QPainterPath mailbox();
+    QPainterPath deer();
+    QPainterPath fire();
+    QPainterPath lips();
+
+    QPainterPath bezier1();
+    QPainterPath bezier2();
+    QPainterPath bezier3();
+    QPainterPath bezier4();
+
+    QPainterPath random1();
+    QPainterPath random2();
+
+    QPainterPath heart2();
+    QPainterPath rect2();
+    QPainterPath rect3();
+    QPainterPath rect4();
+    QPainterPath rect5();
+    QPainterPath rect6();
+
+    QPainterPath simpleCurve();
+    QPainterPath simpleCurve2();
+    QPainterPath simpleCurve3();
+
+    QPainterPath frame1();
+    QPainterPath frame2();
+    QPainterPath frame3();
+    QPainterPath frame4();
+
+    QPainterPath triangle1();
+    QPainterPath triangle2();
+
+    QPainterPath node();
+    QPainterPath interRect();
+
+    QPainterPath bezierFlower();
+    QPainterPath clover();
+    QPainterPath ellipses();
+    QPainterPath windingFill();
+    QPainterPath oddEvenFill();
+    QPainterPath squareWithHole();
+    QPainterPath circleWithHole();
+    QPainterPath bezierQuadrant();
+}
+#endif
diff --git a/tests/auto/qpathclipper/qpathclipper.pro b/tests/auto/qpathclipper/qpathclipper.pro
new file mode 100644
index 0000000..a8d8152
--- /dev/null
+++ b/tests/auto/qpathclipper/qpathclipper.pro
@@ -0,0 +1,8 @@
+load(qttest_p4)
+INCLUDEPATH += .
+HEADERS += paths.h
+SOURCES  += tst_qpathclipper.cpp paths.cpp
+
+unix:!mac:!symbian*:LIBS+=-lm
+
+
diff --git a/tests/auto/qpathclipper/tst_qpathclipper.cpp b/tests/auto/qpathclipper/tst_qpathclipper.cpp
new file mode 100644
index 0000000..e25c6f1
--- /dev/null
+++ b/tests/auto/qpathclipper/tst_qpathclipper.cpp
@@ -0,0 +1,1403 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "private/qpathclipper_p.h"
+#include "paths.h"
+
+#include <QtTest/QtTest>
+
+#include <qpainterpath.h>
+#include <qpolygon.h>
+#include <qdebug.h>
+#include <qpainter.h>
+
+#include <math.h>
+
+class tst_QPathClipper : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QPathClipper();
+    virtual ~tst_QPathClipper();
+
+private:
+    void clipTest(int subjectIndex, int clipIndex, QPathClipper::Operation op);
+
+    QList<QPainterPath> paths;
+
+public slots:
+    void initTestCase();
+
+private slots:
+    void testWingedEdge();
+
+    void testComparePaths();
+
+    void clip_data();
+    void clip();
+
+    void clip2();
+    void clip3();
+
+    void testIntersections();
+    void testIntersections2();
+    void testIntersections3();
+    void testIntersections4();
+    void testIntersections5();
+    void testIntersections6();
+    void testIntersections7();
+    void testIntersections8();
+    void testIntersections9();
+
+    void zeroDerivativeCurves();
+
+    void task204301_data();
+    void task204301();
+
+    void task209056();
+};
+
+Q_DECLARE_METATYPE(QPainterPath)
+Q_DECLARE_METATYPE(QPathClipper::Operation)
+
+tst_QPathClipper::tst_QPathClipper()
+{
+}
+
+tst_QPathClipper::~tst_QPathClipper()
+{
+}
+
+void tst_QPathClipper::initTestCase()
+{
+    paths << Paths::rect();
+    paths << Paths::heart();
+    paths << Paths::body();
+    paths << Paths::mailbox();
+    paths << Paths::deer();
+    paths << Paths::fire();
+
+    paths << Paths::random1();
+    paths << Paths::random2();
+
+    paths << Paths::heart2();
+    paths << Paths::rect2();
+    paths << Paths::rect3();
+    paths << Paths::rect4();
+    paths << Paths::rect5();
+    paths << Paths::rect6();
+
+    paths << Paths::frame1();
+    paths << Paths::frame2();
+    paths << Paths::frame3();
+    paths << Paths::frame4();
+
+    paths << Paths::triangle1();
+    paths << Paths::triangle2();
+
+    paths << Paths::node();
+    paths << Paths::interRect();
+
+    paths << Paths::simpleCurve();
+    paths << Paths::simpleCurve2();
+    paths << Paths::simpleCurve3();
+
+    paths << Paths::bezier1();
+    paths << Paths::bezier2();
+    paths << Paths::bezier3();
+    paths << Paths::bezier4();
+
+    paths << Paths::bezierFlower();
+    paths << Paths::lips();
+    paths << Paths::clover();
+    paths << Paths::ellipses();
+    paths << Paths::windingFill();
+    paths << Paths::oddEvenFill();
+    paths << Paths::squareWithHole();
+    paths << Paths::circleWithHole();
+    paths << Paths::bezierQuadrant();
+
+    // make sure all the bounding rects are centered at the origin
+    for (int i = 0; i < paths.size(); ++i) {
+        QRectF bounds = paths[i].boundingRect();
+
+        QMatrix m(1, 0,
+                  0, 1,
+                  -bounds.center().x(), -bounds.center().y());
+
+        paths[i] = m.map(paths[i]);
+    }
+}
+
+static QPainterPath samplePath1()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(200, 246.64789));
+    path.lineTo(QPointF(200, 206.64789));
+    path.lineTo(QPointF(231.42858, 206.64789));
+    path.lineTo(QPointF(231.42858, 246.64789));
+    path.lineTo(QPointF(200, 246.64789));
+    return path;
+}
+
+static QPainterPath samplePath2()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(200, 146.64789));
+    path.lineTo(QPointF(200, 106.64789));
+    path.lineTo(QPointF(231.42858, 106.64789));
+    path.lineTo(QPointF(231.42858, 146.64789));
+    path.lineTo(QPointF(200, 146.64789));
+    return path;
+}
+
+static QPainterPath samplePath3()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(231.42858, 80.933609));
+    path.lineTo(QPointF(200, 80.933609));
+    path.lineTo(QPointF(200, 96.64788999999999));
+    path.lineTo(QPointF(231.42858, 96.64788999999999));
+    path.lineTo(QPointF(231.42858, 80.933609));
+    return path;
+}
+
+static QPainterPath samplePath4()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(288.571434, 80.933609));
+    path.lineTo(QPointF(431.42858, 80.933609));
+    path.lineTo(QPointF(431.42858, 96.64788999999999));
+    path.lineTo(QPointF(288.571434, 96.64788999999999));
+    path.lineTo(QPointF(288.571434, 80.933609));
+    return path;
+}
+
+static QPainterPath samplePath5()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(588.571434, 80.933609));
+    path.lineTo(QPointF(682.85715, 80.933609));
+    path.lineTo(QPointF(682.85715, 96.64788999999999));
+    path.lineTo(QPointF(588.571434, 96.64788999999999));
+    path.lineTo(QPointF(588.571434, 80.933609));
+    return path;
+}
+
+static QPainterPath samplePath6()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(588.571434, 80.933609));
+    path.lineTo(QPointF(200, 80.933609));
+    path.lineTo(QPointF(200, 446.6479));
+    path.lineTo(QPointF(682.85715, 446.6479));
+    path.lineTo(QPointF(682.85715, 96.64788999999999));
+    path.lineTo(QPointF(731.42858, 96.64788999999999));
+    path.lineTo(QPointF(731.42858, 56.64788999999999));
+    path.lineTo(QPointF(588.571434, 56.64788999999999));
+    path.lineTo(QPointF(588.571434, 80.933609));
+    return path;
+}
+
+static QPainterPath samplePath7()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(682.85715, 206.64789));
+    path.lineTo(QPointF(682.85715, 246.64789));
+    path.lineTo(QPointF(588.571434, 246.64789));
+    path.lineTo(QPointF(588.571434, 206.64789));
+    path.lineTo(QPointF(682.85715, 206.64789));
+    return path;
+}
+
+static QPainterPath samplePath8()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(682.85715, 406.64789));
+    path.lineTo(QPointF(682.85715, 446.64789));
+    path.lineTo(QPointF(588.571434, 446.64789));
+    path.lineTo(QPointF(588.571434, 406.64789));
+    path.lineTo(QPointF(682.85715, 406.64789));
+    return path;
+}
+
+static QPainterPath samplePath9()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(682.85715, 426.64789));
+    path.lineTo(QPointF(682.85715, 446.6479));
+    path.lineTo(QPointF(568.571434, 446.6479));
+    path.lineTo(QPointF(568.571434, 426.64789));
+    path.lineTo(QPointF(682.85715, 426.64789));
+    return path;
+}
+
+static QPainterPath samplePath10()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(511.42858, 446.6479));
+    path.lineTo(QPointF(368.571434, 446.6479));
+    path.lineTo(QPointF(368.571434, 426.64789));
+    path.lineTo(QPointF(511.42858, 426.64789));
+    path.lineTo(QPointF(511.42858, 446.6479));
+    return path;
+}
+
+static QPainterPath samplePath11()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(165.71429, 338.79076));
+    path.lineTo(QPointF(227.74288, 338.79076));
+    path.cubicTo(QPointF(232.95048, 338.79076),
+                 QPointF(237.14288, 342.88102),
+                 QPointF(237.14288, 347.96176));
+    path.lineTo(QPointF(237.14288, 366.76261));
+    path.cubicTo(QPointF(237.14288, 371.84335),
+                 QPointF(232.95048, 375.93361),
+                 QPointF(227.74288, 375.93361));
+    path.lineTo(QPointF(165.7142905131896, 375.93361));
+    path.lineTo(QPointF(165.71429, 338.79076));
+    return path;
+}
+static QPainterPath samplePath12()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(333.297085225735, 61.53486494396167));
+    path.cubicTo(QPointF(339.851755668807, 65.26555884471786),
+                 QPointF(346.7164458828328, 69.04482864715078),
+                 QPointF(353.4159970843586, 72.56059416636147));
+    path.cubicTo(QPointF(353.4166971116034, 72.56155590850551),
+                 QPointF(353.4173961086004, 72.56251809989483),
+                 QPointF(353.4180950127331, 72.56348028832946));
+    path.cubicTo(QPointF(342.4340366381152, 76.42344228577481),
+                 QPointF(317.0596805768079, 94.67086588954379),
+                 QPointF(309.78055, 101.00195));
+    path.cubicTo(QPointF(286.0370715501102, 121.6530659984711),
+                 QPointF(272.7748256344584, 134.1525788344904),
+                 QPointF(250.7436468364447, 150.4434491585085));
+    path.lineTo(QPointF(247.03629, 146.56585));
+    path.lineTo(QPointF(240.71086, 91.501867));
+    path.cubicTo(QPointF(240.71086, 91.501867),
+                 QPointF(305.6382515924416, 62.21715375368672),
+                 QPointF(333.297085225735, 61.53486494396167));
+    return path;
+}
+
+static QPainterPath samplePath13()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(160, 200));
+    path.lineTo(QPointF(100, 200));
+    path.lineTo(QPointF(100, 130));
+    path.lineTo(QPointF(160, 130));
+    path.lineTo(QPointF(160, 200));
+    return path;
+}
+
+static QPainterPath samplePath14()
+{
+    QPainterPath path;
+    path.moveTo(QPointF(100, 180));
+    path.lineTo(QPointF(100, 80));
+    path.lineTo(QPointF(120, 80));
+    path.lineTo(QPointF(120, 100));
+    path.lineTo(QPointF(160, 100));
+    path.lineTo(QPointF(160, 180));
+    path.lineTo(QPointF(100, 180));
+    return path;
+}
+
+void tst_QPathClipper::clip_data()
+{
+    //create the testtable instance and define the elements
+    QTest::addColumn<QPainterPath>("subject");
+    QTest::addColumn<QPainterPath>("clip");
+    QTest::addColumn<QPathClipper::Operation>("op");
+    QTest::addColumn<QPainterPath>("result");
+
+    //next we fill it with data
+    QTest::newRow( "simple1" )  << Paths::frame3()
+                                << Paths::frame4()
+                                << QPathClipper::BoolAnd
+                                << samplePath1();
+
+    QTest::newRow( "simple2" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(0, -100)
+                                << QPathClipper::BoolAnd
+                                << samplePath2();
+
+    QTest::newRow( "simple3" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(0, -150)
+                                << QPathClipper::BoolAnd
+                                << samplePath3();
+
+    QTest::newRow( "simple4" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(200, -150)
+                                << QPathClipper::BoolAnd
+                                << samplePath4();
+
+    QTest::newRow( "simple5" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(500, -150)
+                                << QPathClipper::BoolAnd
+                                << samplePath5();
+
+    QTest::newRow( "simple6" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(500, -150)
+                                << QPathClipper::BoolOr
+                                << samplePath6();
+
+    QTest::newRow( "simple7" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(500, 0)
+                                << QPathClipper::BoolAnd
+                                << samplePath7();
+
+    QTest::newRow( "simple8" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(500, 200)
+                                << QPathClipper::BoolAnd
+                                << samplePath8();
+
+    QTest::newRow( "simple9" )  << Paths::frame3()
+                                << Paths::frame4() * QTransform().translate(480, 220)
+                                << QPathClipper::BoolAnd
+                                << samplePath9();
+
+    QTest::newRow( "simple10" )  << Paths::frame3()
+                                 << Paths::frame4() * QTransform().translate(280, 220)
+                                 << QPathClipper::BoolAnd
+                                 << samplePath10();
+
+    QTest::newRow( "simple11" )  << Paths::frame2()*QTransform().translate(40, 235)
+                                 << Paths::frame1()
+                                 << QPathClipper::BoolAnd
+                                 << samplePath11();
+
+    QTest::newRow( "intersection_at_edge" )  << Paths::lips()
+                                             << Paths::mailbox()*QTransform().translate(-85, 34)
+                                             << QPathClipper::BoolAnd
+                                             << samplePath12();
+
+    QTest::newRow( "simple_move_to1" )  << Paths::rect4()
+                                       << Paths::rect2() * QTransform().translate(-20, 50)
+                                       << QPathClipper::BoolAnd
+                                       << samplePath13();
+
+    QTest::newRow( "simple_move_to2" )  << Paths::rect4()
+                                        << Paths::rect2() * QTransform().translate(-20, 0)
+                                        << QPathClipper::BoolAnd
+                                        << samplePath14();
+}
+
+static const int precision = 8;
+static const qreal epsilon = pow(0.1, precision);
+
+static inline bool fuzzyIsZero(qreal x, qreal relative)
+{
+    if (qAbs(relative) < epsilon)
+        return qAbs(x) < epsilon;
+    else
+        return qAbs(x / relative) < epsilon;
+}
+
+static bool fuzzyCompare(const QPointF &a, const QPointF &b)
+{
+    const QPointF delta = a - b;
+
+    const qreal x = qMax(qAbs(a.x()), qAbs(b.x()));
+    const qreal y = qMax(qAbs(a.y()), qAbs(b.y()));
+
+    return fuzzyIsZero(delta.x(), x) && fuzzyIsZero(delta.y(), y);
+}
+
+static bool isClosed(const QPainterPath &path)
+{
+    if (path.elementCount() == 0)
+        return false;
+
+    QPointF first = path.elementAt(0);
+    QPointF last = path.elementAt(path.elementCount() - 1);
+
+    return fuzzyCompare(first, last);
+}
+
+// rotation and direction independent path comparison
+// allows paths to be shifted or reversed relative to each other
+static bool comparePaths(const QPainterPath &actual, const QPainterPath &expected)
+{
+    const int endActual = isClosed(actual) ? actual.elementCount() - 1 : actual.elementCount();
+    const int endExpected = isClosed(expected) ? expected.elementCount() - 1 : expected.elementCount();
+
+    if (endActual != endExpected)
+        return false;
+
+    for (int i = 0; i < endActual; ++i) {
+        int k = 0;
+        for (k = 0; k < endActual; ++k) {
+            int i1 = k;
+            int i2 = (i + k) % endActual;
+
+            QPointF a = actual.elementAt(i1);
+            QPointF b = expected.elementAt(i2);
+
+            if (!fuzzyCompare(a, b))
+                break;
+        }
+
+        if (k == endActual)
+            return true;
+
+        for (k = 0; k < endActual; ++k) {
+            int i1 = k;
+            int i2 = (i + endActual - k) % endActual;
+
+            QPointF a = actual.elementAt(i1);
+            QPointF b = expected.elementAt(i2);
+
+            if (!fuzzyCompare(a, b))
+                break;
+        }
+
+        if (k == endActual)
+            return true;
+    }
+
+    return false;
+}
+
+// sanity check to make sure comparePaths declared above works
+void tst_QPathClipper::testComparePaths()
+{
+    QPainterPath a;
+    QPainterPath b;
+
+    a.addRect(0, 0, 10, 10);
+    b.addRect(0, 0, 10.00001, 10.00001);
+
+    QVERIFY(!comparePaths(a, b));
+
+    b = QPainterPath();
+    b.addRect(0, 0, 10.00000000001, 10.00000000001);
+
+    QVERIFY(comparePaths(a, b));
+
+    b = QPainterPath();
+    b.moveTo(10, 0);
+    b.lineTo(0, 0);
+    b.lineTo(0, 10);
+    b.lineTo(10, 10);
+
+    QVERIFY(comparePaths(a, b));
+    b.lineTo(10, 0);
+    QVERIFY(comparePaths(a, b));
+
+    b = QPainterPath();
+    b.moveTo(10, 0);
+    b.lineTo(0, 10);
+    b.lineTo(0, 0);
+    b.lineTo(10, 10);
+
+    QVERIFY(!comparePaths(a, b));
+}
+
+void tst_QPathClipper::clip()
+{
+    if (sizeof(double) != sizeof(qreal)) {
+        QSKIP("This test only works for qreal=double, otherwise ends in rounding errors", SkipAll);
+    }
+    QFETCH( QPainterPath, subject );
+    QFETCH( QPainterPath, clip );
+    QFETCH( QPathClipper::Operation, op );
+    QFETCH( QPainterPath,  result);
+    QPathClipper clipper(subject, clip);
+    QPainterPath x = clipper.clip(op);
+
+    QVERIFY(comparePaths(x, result));
+}
+
+static inline QPointF randomPointInRect(const QRectF &rect)
+{
+    qreal rx = qrand() / (RAND_MAX + 1.);
+    qreal ry = qrand() / (RAND_MAX + 1.);
+
+    return QPointF(rect.left() + rx * rect.width(),
+                   rect.top() + ry * rect.height());
+}
+
+void tst_QPathClipper::clipTest(int subjectIndex, int clipIndex, QPathClipper::Operation op)
+{
+    const QPainterPath &subject = paths[subjectIndex];
+    const QPainterPath &clip = paths[clipIndex];
+    const int count = 40;
+
+    QRectF bounds = subject.boundingRect().united(clip.boundingRect());
+
+    const qreal adjustX = bounds.width() * 0.01;
+    const qreal adjustY = bounds.height() * 0.01;
+
+    // make sure we test some points that are outside both paths as well
+    bounds = bounds.adjusted(-adjustX, -adjustY, adjustX, adjustY);
+
+    const int dim = 256;
+    const qreal scale = qMin(dim / bounds.width(), dim / bounds.height());
+
+    QPathClipper clipper(subject, clip);
+    QPainterPath result = clipper.clip(op);
+
+    // using the image here is a bit of a hacky way to make sure we don't test points that
+    // are too close to the path edges to avoid test fails that are due to numerical errors
+    QImage img(dim, dim, QImage::Format_ARGB32_Premultiplied);
+    img.fill(0x0);
+    QPainter p(&img);
+    p.setRenderHint(QPainter::Antialiasing);
+    p.scale(scale, scale);
+    p.translate(-bounds.topLeft());
+    p.setPen(Qt::black);
+    p.drawPath(subject);
+    p.setPen(Qt::red);
+    p.drawPath(clip);
+    p.end();
+
+    for (int i = 0; i < count; ++i) {
+        QPointF point;
+        QRgb pixel;
+        do {
+            point = randomPointInRect(bounds);
+            const QPointF imagePoint = (point - bounds.topLeft()) * scale;
+
+            pixel = img.pixel(int(imagePoint.x()), int(imagePoint.y()));
+        } while (qAlpha(pixel) > 0);
+
+        const bool inSubject = subject.contains(point);
+        const bool inClip = clip.contains(point);
+
+        const bool inResult = result.contains(point);
+
+        bool expected = false;
+        switch (op) {
+        case QPathClipper::BoolAnd:
+            expected = inSubject && inClip;
+            break;
+        case QPathClipper::BoolOr:
+            expected = inSubject || inClip;
+            break;
+        case QPathClipper::BoolSub:
+            expected = inSubject && !inClip;
+            break;
+        default:
+            break;
+        }
+
+        if (expected != inResult) {
+            char str[256];
+            const char *opStr =
+                 op == QPathClipper::BoolAnd ? "and" :
+                 op == QPathClipper::BoolOr ? "or" : "sub";
+            sprintf(str, "Expected: %d, actual: %d, subject: %d, clip: %d, op: %s\n",
+                     int(expected), int(inResult), subjectIndex, clipIndex, opStr);
+
+            // debugging
+#if 0
+            QRect rect = bounds.toAlignedRect();
+
+            QPainter p(&img);
+            p.scale(scale, scale);
+            p.translate(-bounds.topLeft());
+
+            p.setPen(Qt::NoPen);
+            p.setBrush(QColor(0x700ff00));
+            p.drawPath(result);
+
+            p.setPen(Qt::blue);
+            p.drawPoint(point);
+            p.end();
+
+            char str2[256];
+            sprintf(str2, "fail-%d-%d-%s.png", subjectIndex, clipIndex, opStr);
+            img.save(str2);
+#endif
+            QFAIL(str);
+        }
+    }
+}
+
+void tst_QPathClipper::clip2()
+{
+    if (sizeof(double) != sizeof(qreal))
+        QSKIP("This test only works for qreal=double, otherwise ends in rounding errors", SkipAll);
+
+    int operation = 0;
+
+    for (int i = 0; i < paths.size(); ++i) {
+        for (int j = 0; j <= i; ++j) {
+            QPathClipper::Operation op = QPathClipper::Operation((operation++) % 3);
+            clipTest(i, j, op);
+        }
+    }
+}
+
+void tst_QPathClipper::clip3()
+{
+    int operation = 0;
+
+    // this subset should work correctly for qreal = float
+    for (int i = 0; i < 20; ++i) {
+        for (int j = 0; j <= i; ++j) {
+            QPathClipper::Operation op = QPathClipper::Operation((operation++) % 3);
+            clipTest(i, j, op);
+        }
+    }
+}
+
+void tst_QPathClipper::testIntersections()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.addRect(0, 0, 100, 100);
+    path2.addRect(20, 20, 20, 20);
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addEllipse(0, 0, 100, 100);
+    path2.addEllipse(200, 200, 100, 100);
+    QVERIFY(!path1.intersects(path2));
+    QVERIFY(!path2.intersects(path1));
+    QVERIFY(!path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addEllipse(0, 0, 100, 100);
+    path2.addEllipse(50, 50, 100, 100);
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(!path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(100, 100, 100, 100);
+    path2.addRect(50, 100, 100, 20);
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(!path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(100, 100, 100, 100);
+    path2.addRect(110, 201, 100, 20);
+    QVERIFY(!path1.intersects(path2));
+    QVERIFY(!path2.intersects(path1));
+    QVERIFY(!path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(0, 0, 100, 100);
+    path2.addRect(20, 20, 20, 20);
+    path2.addRect(25, 25, 5, 5);
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+}
+
+void tst_QPathClipper::testIntersections2()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+
+    path1.moveTo(-8,-8);
+    path1.lineTo(107,-8);
+    path1.lineTo(107,107);
+    path1.lineTo(-8,107);
+
+    path2.moveTo(0,0);
+    path2.lineTo(100,0);
+    path2.lineTo(100,100);
+    path2.lineTo(0,100);
+    path2.lineTo(0,0);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+
+    path1.closeSubpath();
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+    QVERIFY(path1.contains(path2));
+    QVERIFY(!path2.contains(path1));
+}
+
+void tst_QPathClipper::testIntersections3()
+{
+    QPainterPath path1 = Paths::node();
+    QPainterPath path2 = Paths::interRect();
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+void tst_QPathClipper::testIntersections4()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.moveTo(-5, 0);
+    path1.lineTo(5, 0);
+
+    path2.moveTo(0, -5);
+    path2.lineTo(0, 5);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+void tst_QPathClipper::testIntersections5()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.addRect(0, 0, 4, 4);
+    path1.addRect(2, 1, 1, 1);
+    path2.addRect(0.5, 2, 1, 1);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+void tst_QPathClipper::testIntersections6()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.moveTo(QPointF(-115.567, -98.3254));
+    path1.lineTo(QPointF(-45.9007, -98.3254));
+    path1.lineTo(QPointF(-45.9007, -28.6588));
+    path1.lineTo(QPointF(-115.567, -28.6588));
+
+    path2.moveTo(QPointF(-110, -110));
+    path2.lineTo(QPointF(110, -110));
+    path2.lineTo(QPointF(110, 110));
+    path2.lineTo(QPointF(-110, 110));
+    path2.lineTo(QPointF(-110, -110));
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+
+void tst_QPathClipper::testIntersections7()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.addRect(0, 0, 10, 10);
+    path2.addRect(5, 0, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(0, 0, 10, 10);
+    path2.addRect(0, 5, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(0, 0, 10, 10);
+    path2.addRect(0, 0, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    ///
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(5, 1, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(1, 5, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(1, 1, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(5, 5, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(9, 9, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(10, 10, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 9, 9);
+    path2.addRect(11, 11, 10, 10);
+
+    QVERIFY(!path1.intersects(path2));
+    QVERIFY(!path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(1, 1, 10, 10);
+    path2.addRect(12, 12, 10, 10);
+
+    QVERIFY(!path1.intersects(path2));
+    QVERIFY(!path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(11, 11, 10, 10);
+    path2.addRect(12, 12, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();
+    path2 = QPainterPath();
+    path1.addRect(11, 11, 10, 10);
+    path2.addRect(10, 10, 10, 10);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+
+void tst_QPathClipper::testIntersections8()
+{
+    QPainterPath path1 = Paths::node() * QTransform().translate(100, 50);
+    QPainterPath path2 = Paths::node() * QTransform().translate(150, 50);;
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = Paths::node();
+    path2 = Paths::node();
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = Paths::node();
+    path2 = Paths::node() * QTransform().translate(0, 30);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = Paths::node();
+    path2 = Paths::node() * QTransform().translate(30, 0);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = Paths::node();
+    path2 = Paths::node() * QTransform().translate(30, 30);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = Paths::node();
+    path2 = Paths::node() * QTransform().translate(1, 1);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+
+void tst_QPathClipper::testIntersections9()
+{
+    QPainterPath path1;
+    QPainterPath path2;
+
+    path1.addRect(QRectF(-1,143, 146, 106));
+    path2.addRect(QRectF(-9,145, 150, 100));
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();;
+    path2 = QPainterPath();
+
+    path1.addRect(QRectF(-1,191, 136, 106));
+    path2.addRect(QRectF(-19,194, 150, 100));
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+
+    path1 = QPainterPath();;
+    path2 = QPainterPath();
+
+    path1.moveTo(-1 ,  143);
+    path1.lineTo(148 ,  143);
+    path1.lineTo(148 ,  250);
+    path1.lineTo(-1 ,  250);
+
+    path2.moveTo(-5 ,  146);
+    path2.lineTo(145 ,  146);
+    path2.lineTo(145 ,  246);
+    path2.lineTo(-5 ,  246);
+    path2.lineTo(-5 ,  146);
+
+    QVERIFY(path1.intersects(path2));
+    QVERIFY(path2.intersects(path1));
+}
+
+QPainterPath pathFromRect(qreal x, qreal y, qreal w, qreal h)
+{
+    QPainterPath path;
+    path.addRect(QRectF(x, y, w, h));
+    return path;
+}
+
+QPainterPath pathFromLine(qreal x1, qreal y1, qreal x2, qreal y2)
+{
+    QPainterPath path;
+    path.moveTo(x1, y1);
+    path.lineTo(x2, y2);
+    return path;
+}
+
+static int loopLength(const QWingedEdge &list, QWingedEdge::TraversalStatus status)
+{
+    int start = status.edge;
+
+    int length = 0;
+    do {
+        ++length;
+        status = list.next(status);
+    } while (status.edge != start);
+
+    return length;
+}
+
+void tst_QPathClipper::testWingedEdge()
+{
+    {
+        QWingedEdge list;
+        int e1 = list.addEdge(QPointF(0, 0), QPointF(10, 0));
+        int e2 = list.addEdge(QPointF(0, 0), QPointF(0, 10));
+        int e3 = list.addEdge(QPointF(0, 0), QPointF(-10, 0));
+        int e4 = list.addEdge(QPointF(0, 0), QPointF(0, -10));
+
+        QCOMPARE(list.edgeCount(), 4);
+        QCOMPARE(list.vertexCount(), 5);
+
+        QWingedEdge::TraversalStatus status = { e1, QPathEdge::RightTraversal, QPathEdge::Forward };
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e1);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e4);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e4);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e3);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e3);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e2);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e2);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e1);
+    }
+    {
+        QWingedEdge list;
+        int e1 = list.addEdge(QPointF(5, 0), QPointF(5, 10));
+        int e2 = list.addEdge(QPointF(5, 0), QPointF(10, 5));
+        int e3 = list.addEdge(QPointF(10, 5), QPointF(5, 10));
+        int e4 = list.addEdge(QPointF(5, 0), QPointF(0, 5));
+        int e5 = list.addEdge(QPointF(0, 5), QPointF(5, 10));
+
+        QCOMPARE(list.edgeCount(), 5);
+        QCOMPARE(list.vertexCount(), 4);
+
+        QWingedEdge::TraversalStatus status = { e1, QPathEdge::RightTraversal, QPathEdge::Forward };
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e5);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e4);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e1);
+
+        QCOMPARE(loopLength(list, status), 3);
+
+        status.flip();
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(loopLength(list, status), 3);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e2);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e3);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e1);
+
+        status = list.next(status);
+        status.flip();
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e2);
+        QCOMPARE(loopLength(list, status), 4);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e4);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Forward);
+        QCOMPARE(status.traversal, QPathEdge::RightTraversal);
+        QCOMPARE(status.edge, e5);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e3);
+
+        status = list.next(status);
+        QCOMPARE(status.direction, QPathEdge::Backward);
+        QCOMPARE(status.traversal, QPathEdge::LeftTraversal);
+        QCOMPARE(status.edge, e2);
+    }
+    {
+        QPainterPath path = pathFromRect(0, 0, 20, 20);
+        QWingedEdge list(path, QPainterPath());
+
+        QCOMPARE(list.edgeCount(), 4);
+        QCOMPARE(list.vertexCount(), 4);
+
+        QWingedEdge::TraversalStatus status = { 0, QPathEdge::RightTraversal, QPathEdge::Forward };
+
+        QPathEdge *edge = list.edge(status.edge);
+        QCOMPARE(QPointF(*list.vertex(edge->first)), QPointF(0, 0));
+        QCOMPARE(QPointF(*list.vertex(edge->second)), QPointF(20, 0));
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 1);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 2);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 3);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 0);
+
+        status.flipDirection();
+        status = list.next(status);
+        QCOMPARE(status.edge, 3);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 2);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 1);
+
+        status = list.next(status);
+        QCOMPARE(status.edge, 0);
+
+        QWingedEdge list2(path, pathFromRect(10, 5, 20, 10));
+
+        QCOMPARE(list2.edgeCount(), 12);
+        QCOMPARE(list2.vertexCount(), 10);
+
+        status.flipDirection();
+        QCOMPARE(loopLength(list2, status), 8);
+
+        status = list2.next(status);
+        edge = list2.edge(status.edge);
+        QCOMPARE(QPointF(*list2.vertex(edge->first)), QPointF(20, 0));
+        QCOMPARE(QPointF(*list2.vertex(edge->second)), QPointF(20, 5));
+
+        status = list2.next(status);
+        status.flipTraversal();
+
+        edge = list2.edge(status.edge);
+        QCOMPARE(QPointF(*list2.vertex(edge->first)), QPointF(10, 5));
+        QCOMPARE(QPointF(*list2.vertex(edge->second)), QPointF(20, 5));
+
+        QCOMPARE(loopLength(list2, status), 4);
+
+        status.flipDirection();
+        status = list2.next(status);
+        status.flipTraversal();
+
+        edge = list2.edge(status.edge);
+        QCOMPARE(QPointF(*list2.vertex(edge->first)), QPointF(20, 5));
+        QCOMPARE(QPointF(*list2.vertex(edge->second)), QPointF(20, 15));
+
+        QCOMPARE(loopLength(list2, status), 4);
+        status = list2.next(status);
+        status = list2.next(status);
+
+        edge = list2.edge(status.edge);
+        QCOMPARE(QPointF(*list2.vertex(edge->first)), QPointF(30, 5));
+        QCOMPARE(QPointF(*list2.vertex(edge->second)), QPointF(30, 15));
+    }
+}
+
+void tst_QPathClipper::zeroDerivativeCurves()
+{
+    // zero derivative at end
+    {
+        QPainterPath a;
+        a.cubicTo(100, 0, 100, 100, 100, 100);
+        a.lineTo(100, 200);
+        a.lineTo(0, 200);
+
+        QPainterPath b;
+        b.moveTo(50, 100);
+        b.lineTo(150, 100);
+        b.lineTo(150, 150);
+        b.lineTo(50, 150);
+
+        QPainterPath c = a.united(b);
+        QVERIFY(c.contains(QPointF(25, 125)));
+        QVERIFY(c.contains(QPointF(75, 125)));
+        QVERIFY(c.contains(QPointF(125, 125)));
+    }
+
+    // zero derivative at start
+    {
+        QPainterPath a;
+        a.cubicTo(100, 0, 100, 100, 100, 100);
+        a.lineTo(100, 200);
+        a.lineTo(0, 200);
+
+        QPainterPath b;
+        b.moveTo(50, 100);
+        b.lineTo(150, 100);
+        b.lineTo(150, 150);
+        b.lineTo(50, 150);
+
+        QPainterPath c = a.united(b);
+        QVERIFY(c.contains(QPointF(25, 125)));
+        QVERIFY(c.contains(QPointF(75, 125)));
+        QVERIFY(c.contains(QPointF(125, 125)));
+    }
+}
+
+static bool strictContains(const QPainterPath &a, const QPainterPath &b)
+{
+    return b.subtracted(a) == QPainterPath();
+}
+
+Q_DECLARE_METATYPE(QPolygonF)
+
+void tst_QPathClipper::task204301_data()
+{
+    QTest::addColumn<QPolygonF>("points");
+
+    {
+        QPointF a(51.09013255685567855835, 31.30814891308546066284);
+        QPointF b(98.39898971840739250183, 11.02079074829816818237);
+        QPointF c(91.23911846894770860672, 45.86981737054884433746);
+        QPointF d(66.58616356085985898972, 63.10526528395712375641);
+        QPointF e(82.08219456479714892794, 94.90238165489137145414);
+        QPointF f(16.09013040543221251255, 105.66263409332729850121);
+        QPointF g(10.62811442650854587555, 65.09154842235147953033);
+        QPointF h(5.16609844751656055450, 24.52046275138854980469);
+        QPolygonF v;
+        v << a << b << c << d << e << f << g << h;
+        QTest::newRow("failed_on_linux") << v;
+    }
+
+    {
+        QPointF a(50.014648437500000, 24.392089843750000);
+        QPointF b(92.836303710937500, 5.548706054687500);
+        QPointF c(92.145690917968750, 54.390258789062500);
+        QPointF d(65.402221679687500, 74.345092773437500);
+        QPointF e(80.789794921787347, 124.298095703129690);
+        QPointF f(34.961242675812954, 87.621459960852135);
+        QPointF g(18.305969238281250, 57.426757812500000);
+        QPointF h(1.650695800781250, 27.232055664062500);
+        QPolygonF v;
+        v << a << b << c << d << e << f << g << h;
+        QTest::newRow("failed_on_windows") << v;
+    }
+}
+
+void tst_QPathClipper::task204301()
+{
+    QFETCH(QPolygonF, points);
+
+    QPointF a = points[0];
+    QPointF b = points[1];
+    QPointF c = points[2];
+    QPointF d = points[3];
+    QPointF e = points[4];
+    QPointF f = points[5];
+    QPointF g = points[6];
+    QPointF h = points[7];
+
+    QPainterPath subA;
+    subA.addPolygon(QPolygonF() << a << b << c << d);
+    subA.closeSubpath();
+
+    QPainterPath subB;
+    subB.addPolygon(QPolygonF() << f << e << d << g);
+    subB.closeSubpath();
+
+    QPainterPath subC;
+    subC.addPolygon(QPolygonF() << h << a << d << g);
+    subC.closeSubpath();
+
+    QPainterPath path;
+    path.addPath(subA);
+    path.addPath(subB);
+    path.addPath(subC);
+
+    QPainterPath simplified = path.simplified();
+
+    QVERIFY(strictContains(simplified, subA));
+    QVERIFY(strictContains(simplified, subB));
+    QVERIFY(strictContains(simplified, subC));
+}
+
+void tst_QPathClipper::task209056()
+{
+    QPainterPath p1;
+    p1.moveTo( QPointF(188.506, 287.793) );
+    p1.lineTo( QPointF(288.506, 287.793) );
+    p1.lineTo( QPointF(288.506, 387.793) );
+    p1.lineTo( QPointF(188.506, 387.793) );
+    p1.lineTo( QPointF(188.506, 287.793) );
+
+    QPainterPath p2;
+    p2.moveTo( QPointF(419.447, 164.383) );
+    p2.cubicTo( QPointF(419.447, 69.5486), QPointF(419.447, 259.218),QPointF(419.447, 164.383) );
+
+    p2.cubicTo( QPointF(48.9378, 259.218), QPointF(131.879, 336.097),QPointF(234.192, 336.097) );
+    p2.cubicTo( QPointF(336.506, 336.097), QPointF(419.447, 259.218),QPointF(419.447, 164.383) );
+
+    QPainterPath p3 = p1.intersected(p2);
+
+    QVERIFY(p3 != QPainterPath());
+}
+
+QTEST_APPLESS_MAIN(tst_QPathClipper)
+
+
+#include "tst_qpathclipper.moc"