tools/qa/cppunit/test_color.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <sal/types.h>
  11 #include <cppunit/TestAssert.h>
  12 #include <cppunit/TestFixture.h>
  13 #include <cppunit/extensions/HelperMacros.h>
  14 #include <tools/color.hxx>
  15
  16 namespace
  17 {
  18
  19 class Test: public CppUnit::TestFixture
  20 {
  21 public:
  22     void testVariables();
  23     void test_asRGBColor();
  24     void test_ApplyTintOrShade();
  25     void testGetColorError();
  26     void testInvert();
  27     void testBColor();
  28
  29     CPPUNIT_TEST_SUITE(Test);
  30     CPPUNIT_TEST(testVariables);
  31     CPPUNIT_TEST(test_asRGBColor);
  32     CPPUNIT_TEST(test_ApplyTintOrShade);
  33     CPPUNIT_TEST(testGetColorError);
  34     CPPUNIT_TEST(testInvert);
  35     CPPUNIT_TEST(testBColor);
  36     CPPUNIT_TEST_SUITE_END();
  37 };
  38
  39 void Test::testVariables()
  40 {
  41     Color aColor(0x44, 0x88, 0xAA);
  42     CPPUNIT_ASSERT_EQUAL(int(0x00), int(aColor.A));
  43     CPPUNIT_ASSERT_EQUAL(int(0x44), int(aColor.R));
  44     CPPUNIT_ASSERT_EQUAL(int(0x88), int(aColor.G));
  45     CPPUNIT_ASSERT_EQUAL(int(0xAA), int(aColor.B));
  46     CPPUNIT_ASSERT_EQUAL(int(0x004488AA), int(aColor.mValue));
  47
  48     aColor.mValue = 0xAABBCCDD;
  49     CPPUNIT_ASSERT_EQUAL(int(0xAA), int(aColor.A));
  50     CPPUNIT_ASSERT_EQUAL(int(0xBB), int(aColor.R));
  51     CPPUNIT_ASSERT_EQUAL(int(0xCC), int(aColor.G));
  52     CPPUNIT_ASSERT_EQUAL(int(0xDD), int(aColor.B));
  53
  54     aColor.A = 0x11;
  55     CPPUNIT_ASSERT_EQUAL(int(0x11BBCCDD), int(aColor.mValue));
  56
  57     aColor.R = 0x22;
  58     CPPUNIT_ASSERT_EQUAL(int(0x1122CCDD), int(aColor.mValue));
  59
  60     aColor.G = 0x33;
  61     CPPUNIT_ASSERT_EQUAL(int(0x112233DD), int(aColor.mValue));
  62
  63     aColor.B = 0x44;
  64     CPPUNIT_ASSERT_EQUAL(int(0x11223344), int(aColor.mValue));
  65
  66     aColor.SetTransparency(0x77);
  67     CPPUNIT_ASSERT_EQUAL(int(0x77223344), int(aColor.mValue));
  68
  69     aColor.SetRed(0x88);
  70     CPPUNIT_ASSERT_EQUAL(int(0x77883344), int(aColor.mValue));
  71
  72     aColor.SetGreen(0x99);
  73     CPPUNIT_ASSERT_EQUAL(int(0x77889944), int(aColor.mValue));
  74
  75     aColor.SetBlue(0xAA);
  76     CPPUNIT_ASSERT_EQUAL(int(0x778899AA), int(aColor.mValue));
  77 }
  78
  79 void Test::test_asRGBColor()
  80 {
  81     Color aColor;
  82     aColor = COL_BLACK;
  83     CPPUNIT_ASSERT_EQUAL(OUString("000000"), aColor.AsRGBHexString());
  84
  85     aColor = COL_WHITE;
  86     CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString());
  87
  88     aColor = COL_RED;
  89     CPPUNIT_ASSERT_EQUAL(OUString("800000"), aColor.AsRGBHexString());
  90
  91     aColor = COL_TRANSPARENT;
  92     CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString());
  93
  94     aColor = COL_BLUE;
  95     CPPUNIT_ASSERT_EQUAL(OUString("000080"), aColor.AsRGBHexString());
  96
  97     aColor.SetRed(0x12);
  98     aColor.SetGreen(0x34);
  99     aColor.SetBlue(0x56);
 100     CPPUNIT_ASSERT_EQUAL(OUString("123456"), aColor.AsRGBHexString());
 101
 102     aColor = COL_AUTO;
 103     CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString());
 104 }
 105
 106 OUString createTintShade(sal_uInt8 nR, sal_uInt8 nG, sal_uInt8 nB, OUString const & sReference, sal_Int16 nTintShade)
 107 {
 108     Color aColor(nR, nG, nB);
 109     if (sReference != aColor.AsRGBHexString())
 110         return OUString();
 111     aColor.ApplyTintOrShade(nTintShade);
 112     return aColor.AsRGBHexString();
 113 }
 114
 115 void Test::test_ApplyTintOrShade()
 116 {
 117     // BLACK reference
 118
 119     // 5% tint
 120     CPPUNIT_ASSERT_EQUAL(OUString("0d0d0d"), createTintShade(0x00, 0x00, 0x00, "000000",  500));
 121     // 15% tint
 122     CPPUNIT_ASSERT_EQUAL(OUString("262626"), createTintShade(0x00, 0x00, 0x00, "000000",  1500));
 123     // 25% tint
 124     CPPUNIT_ASSERT_EQUAL(OUString("404040"), createTintShade(0x00, 0x00, 0x00, "000000",  2500));
 125     // 50% tint
 126     CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0x00, 0x00, 0x00, "000000",  5000));
 127     // 100% tint
 128     CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), createTintShade(0x00, 0x00, 0x00, "000000", 10000));
 129
 130     // WHITE reference
 131
 132     // 5% shade
 133     CPPUNIT_ASSERT_EQUAL(OUString("f2f2f2"), createTintShade(0xff, 0xff, 0xff, "ffffff",   -500));
 134     // 15% shade
 135     CPPUNIT_ASSERT_EQUAL(OUString("d9d9d9"), createTintShade(0xff, 0xff, 0xff, "ffffff",  -1500));
 136     // 25% shade
 137     CPPUNIT_ASSERT_EQUAL(OUString("bfbfbf"), createTintShade(0xff, 0xff, 0xff, "ffffff",  -2500));
 138     // 50% shade
 139     CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0xff, 0xff, 0xff, "ffffff",  -5000));
 140     // 100% shade
 141     CPPUNIT_ASSERT_EQUAL(OUString("000000"), createTintShade(0xff, 0xff, 0xff, "ffffff", -10000));
 142
 143     // GREY reference
 144
 145     // 0% - no change
 146     CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0x80, 0x80, 0x80, "808080",      0));
 147
 148     // 25% tint
 149     CPPUNIT_ASSERT_EQUAL(OUString("a0a0a0"), createTintShade(0x80, 0x80, 0x80, "808080",   2500));
 150     // 50% tint
 151     //CPPUNIT_ASSERT_EQUAL(OUString("c0c0c0"), createTintShade(0x80, 0x80, 0x80, "808080",   5000));
 152     // disable for now - a rounding error happens on come platforms...
 153     // 100% tint
 154     CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), createTintShade(0x80, 0x80, 0x80, "808080",  10000));
 155
 156     // 25% shade
 157     CPPUNIT_ASSERT_EQUAL(OUString("606060"), createTintShade(0x80, 0x80, 0x80, "808080",  -2500));
 158     // 50% shade
 159     CPPUNIT_ASSERT_EQUAL(OUString("404040"), createTintShade(0x80, 0x80, 0x80, "808080",  -5000));
 160     // 100% shade
 161     CPPUNIT_ASSERT_EQUAL(OUString("000000"), createTintShade(0x80, 0x80, 0x80, "808080", -10000));
 162 }
 163
 164 void Test::testGetColorError()
 165 {
 166     CPPUNIT_ASSERT_EQUAL(sal_uInt16(0), Color(0xAA, 0xBB, 0xCC).GetColorError(Color(0xAA, 0xBB, 0xCC)));
 167
 168     CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB0, 0xC0)));
 169     CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB1, 0xC0)));
 170     CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB0, 0xC1)));
 171
 172     CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC0)));
 173     CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB1, 0xC1)));
 174     CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB0, 0xC1)));
 175
 176     CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1)));
 177     CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1)));
 178     CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1)));
 179 }
 180
 181 void Test::testInvert()
 182 {
 183     Color aColor(0xFF, 0x00, 0x88);
 184     aColor.Invert();
 185     CPPUNIT_ASSERT_EQUAL(Color(0x00, 0xFF, 0x77).AsRGBHexString(), aColor.AsRGBHexString());
 186
 187     // Alpha should be unaffected
 188     aColor = Color(0x22, 0xFF, 0x00, 0x88);
 189     aColor.Invert();
 190     CPPUNIT_ASSERT_EQUAL(Color(0x22, 0x00, 0xFF, 0x77).AsRGBHexString(), aColor.AsRGBHexString());
 191 }
 192
 193 void Test::testBColor()
 194 {
 195     Color aColor;
 196
 197     aColor = Color(basegfx::BColor(0.0, 0.0, 0.0));
 198
 199     CPPUNIT_ASSERT_EQUAL(Color(0x00, 0x00, 0x00).AsRGBHexString(), aColor.AsRGBHexString());
 200     CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getRed());
 201     CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getGreen());
 202     CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getBlue());
 203
 204     aColor = Color(basegfx::BColor(1.0, 1.0, 1.0));
 205
 206     CPPUNIT_ASSERT_EQUAL(Color(0xFF, 0xFF, 0xFF).AsRGBHexString(), aColor.AsRGBHexString());
 207     CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getRed());
 208     CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getGreen());
 209     CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getBlue());
 210
 211     aColor = Color(basegfx::BColor(0.5, 0.25, 0.125));
 212
 213     CPPUNIT_ASSERT_EQUAL(Color(0x80, 0x40, 0x20).AsRGBHexString(), aColor.AsRGBHexString());
 214     // FP error is rather big, but that's normal
 215     CPPUNIT_ASSERT_DOUBLES_EQUAL(0.500, aColor.getBColor().getRed(), 1E-2);
 216     CPPUNIT_ASSERT_DOUBLES_EQUAL(0.250, aColor.getBColor().getGreen(), 1E-2);
 217     CPPUNIT_ASSERT_DOUBLES_EQUAL(0.125, aColor.getBColor().getBlue(), 1E-2);
 218
 219 }
 220
 221 CPPUNIT_TEST_SUITE_REGISTRATION(Test);
 222
 223 }
 224
 225 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */