basegfx/test/BColorTest.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #include <cppunit/TestAssert.h>
  21 #include <cppunit/TestFixture.h>
  22 #include <cppunit/extensions/HelperMacros.h>
  23
  24 #include <basegfx/color/bcolor.hxx>
  25 #include <basegfx/color/bcolortools.hxx>
  26
  27 namespace basegfx
  28 {
  29 class bcolor : public CppUnit::TestFixture
  30 {
  31     BColor maWhite;
  32     BColor maBlack;
  33     BColor maRed;
  34     BColor maGreen;
  35     BColor maBlue;
  36     BColor maYellow;
  37     BColor maMagenta;
  38     BColor maCyan;
  39
  40 public:
  41     bcolor()
  42         : maWhite(1, 1, 1)
  43         , maBlack(0, 0, 0)
  44         , maRed(1, 0, 0)
  45         , maGreen(0, 1, 0)
  46         , maBlue(0, 0, 1)
  47         , maYellow(1, 1, 0)
  48         , maMagenta(1, 0, 1)
  49         , maCyan(0, 1, 1)
  50     {
  51     }
  52
  53     // insert your test code here.
  54     void hslTest()
  55     {
  56         CPPUNIT_ASSERT_EQUAL_MESSAGE("white", BColor(0, 0, 1), utils::rgb2hsl(maWhite));
  57         CPPUNIT_ASSERT_EQUAL_MESSAGE("black", BColor(0, 0, 0), utils::rgb2hsl(maBlack));
  58         CPPUNIT_ASSERT_EQUAL_MESSAGE("red", BColor(0, 1, 0.5), utils::rgb2hsl(maRed));
  59         CPPUNIT_ASSERT_EQUAL_MESSAGE("green", BColor(120, 1, 0.5), utils::rgb2hsl(maGreen));
  60         CPPUNIT_ASSERT_EQUAL_MESSAGE("blue", BColor(240, 1, 0.5), utils::rgb2hsl(maBlue));
  61         CPPUNIT_ASSERT_EQUAL_MESSAGE("yellow", BColor(60, 1, 0.5), utils::rgb2hsl(maYellow));
  62         CPPUNIT_ASSERT_EQUAL_MESSAGE("magenta", BColor(300, 1, 0.5), utils::rgb2hsl(maMagenta));
  63         CPPUNIT_ASSERT_EQUAL_MESSAGE("cyan", BColor(180, 1, 0.5), utils::rgb2hsl(maCyan));
  64         CPPUNIT_ASSERT_EQUAL_MESSAGE("third hue case", BColor(210, 1, 0.5),
  65                                      utils::rgb2hsl(BColor(0, 0.5, 1)));
  66
  67         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip white", maWhite,
  68                                      utils::hsl2rgb(utils::rgb2hsl(maWhite)));
  69         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip black", maBlack,
  70                                      utils::hsl2rgb(utils::rgb2hsl(maBlack)));
  71         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip red", maRed, utils::hsl2rgb(utils::rgb2hsl(maRed)));
  72         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip green", maGreen,
  73                                      utils::hsl2rgb(utils::rgb2hsl(maGreen)));
  74         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip blue", maBlue,
  75                                      utils::hsl2rgb(utils::rgb2hsl(maBlue)));
  76         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip yellow", maYellow,
  77                                      utils::hsl2rgb(utils::rgb2hsl(maYellow)));
  78         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip magenta", maMagenta,
  79                                      utils::hsl2rgb(utils::rgb2hsl(maMagenta)));
  80         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip cyan", maCyan,
  81                                      utils::hsl2rgb(utils::rgb2hsl(maCyan)));
  82
  83         CPPUNIT_ASSERT_EQUAL_MESSAGE("grey10", BColor(0, 0, .1), utils::rgb2hsl(maWhite * .1));
  84         CPPUNIT_ASSERT_EQUAL_MESSAGE("grey90", BColor(0, 0, .9), utils::rgb2hsl(maWhite * .9));
  85         CPPUNIT_ASSERT_EQUAL_MESSAGE("red/2", BColor(0, 1, 0.25), utils::rgb2hsl(maRed * .5));
  86         CPPUNIT_ASSERT_EQUAL_MESSAGE("green/2", BColor(120, 1, 0.25), utils::rgb2hsl(maGreen * .5));
  87         CPPUNIT_ASSERT_EQUAL_MESSAGE("blue/2", BColor(240, 1, 0.25), utils::rgb2hsl(maBlue * .5));
  88         CPPUNIT_ASSERT_EQUAL_MESSAGE("yellow/2", BColor(60, 1, 0.25),
  89                                      utils::rgb2hsl(maYellow * .5));
  90         CPPUNIT_ASSERT_EQUAL_MESSAGE("magenta/2", BColor(300, 1, 0.25),
  91                                      utils::rgb2hsl(maMagenta * .5));
  92         CPPUNIT_ASSERT_EQUAL_MESSAGE("cyan/2", BColor(180, 1, 0.25), utils::rgb2hsl(maCyan * .5));
  93
  94         CPPUNIT_ASSERT_EQUAL_MESSAGE("pastel", BColor(0, .5, .5),
  95                                      utils::rgb2hsl(BColor(.75, .25, .25)));
  96     }
  97
  98     // insert your test code here.
  99     void hsvTest()
 100     {
 101         CPPUNIT_ASSERT_EQUAL_MESSAGE("white", BColor(0, 0, 1), utils::rgb2hsv(maWhite));
 102         CPPUNIT_ASSERT_EQUAL_MESSAGE("black", BColor(0, 0, 0), utils::rgb2hsv(maBlack));
 103         CPPUNIT_ASSERT_EQUAL_MESSAGE("red", BColor(0, 1, 1), utils::rgb2hsv(maRed));
 104         CPPUNIT_ASSERT_EQUAL_MESSAGE("green", BColor(120, 1, 1), utils::rgb2hsv(maGreen));
 105         CPPUNIT_ASSERT_EQUAL_MESSAGE("blue", BColor(240, 1, 1), utils::rgb2hsv(maBlue));
 106         CPPUNIT_ASSERT_EQUAL_MESSAGE("yellow", BColor(60, 1, 1), utils::rgb2hsv(maYellow));
 107         CPPUNIT_ASSERT_EQUAL_MESSAGE("magenta", BColor(300, 1, 1), utils::rgb2hsv(maMagenta));
 108         CPPUNIT_ASSERT_EQUAL_MESSAGE("cyan", BColor(180, 1, 1), utils::rgb2hsv(maCyan));
 109
 110         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip white", maWhite,
 111                                      utils::hsv2rgb(utils::rgb2hsv(maWhite)));
 112         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip black", maBlack,
 113                                      utils::hsv2rgb(utils::rgb2hsv(maBlack)));
 114         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip red", maRed, utils::hsv2rgb(utils::rgb2hsv(maRed)));
 115         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip green", maGreen,
 116                                      utils::hsv2rgb(utils::rgb2hsv(maGreen)));
 117         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip blue", maBlue,
 118                                      utils::hsv2rgb(utils::rgb2hsv(maBlue)));
 119         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip yellow", maYellow,
 120                                      utils::hsv2rgb(utils::rgb2hsv(maYellow)));
 121         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip magenta", maMagenta,
 122                                      utils::hsv2rgb(utils::rgb2hsv(maMagenta)));
 123         CPPUNIT_ASSERT_EQUAL_MESSAGE("roundtrip cyan", maCyan,
 124                                      utils::hsv2rgb(utils::rgb2hsv(maCyan)));
 125
 126         CPPUNIT_ASSERT_EQUAL_MESSAGE("grey10", BColor(0, 0, .1), utils::rgb2hsv(maWhite * .1));
 127         CPPUNIT_ASSERT_EQUAL_MESSAGE("grey90", BColor(0, 0, .9), utils::rgb2hsv(maWhite * .9));
 128         CPPUNIT_ASSERT_EQUAL_MESSAGE("red/2", BColor(0, 1, 0.5), utils::rgb2hsv(maRed * .5));
 129         CPPUNIT_ASSERT_EQUAL_MESSAGE("green/2", BColor(120, 1, 0.5), utils::rgb2hsv(maGreen * .5));
 130         CPPUNIT_ASSERT_EQUAL_MESSAGE("blue/2", BColor(240, 1, 0.5), utils::rgb2hsv(maBlue * .5));
 131         CPPUNIT_ASSERT_EQUAL_MESSAGE("yellow/2", BColor(60, 1, 0.5), utils::rgb2hsv(maYellow * .5));
 132         CPPUNIT_ASSERT_EQUAL_MESSAGE("magenta/2", BColor(300, 1, 0.5),
 133                                      utils::rgb2hsv(maMagenta * .5));
 134         CPPUNIT_ASSERT_EQUAL_MESSAGE("cyan/2", BColor(180, 1, 0.5), utils::rgb2hsv(maCyan * .5));
 135
 136         CPPUNIT_ASSERT_EQUAL_MESSAGE("pastel", BColor(0, .5, .5),
 137                                      utils::rgb2hsv(BColor(.5, .25, .25)));
 138     }
 139
 140     CPPUNIT_TEST_SUITE(bcolor);
 141     CPPUNIT_TEST(hslTest);
 142     CPPUNIT_TEST(hsvTest);
 143     CPPUNIT_TEST_SUITE_END();
 144 };
 145
 146 } // namespace basegfx
 147
 148 CPPUNIT_TEST_SUITE_REGISTRATION(basegfx::bcolor);
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */