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Diffstat (limited to '')
-rw-r--r-- | tools/qa/cppunit/test_color.cxx | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/tools/qa/cppunit/test_color.cxx b/tools/qa/cppunit/test_color.cxx new file mode 100644 index 000000000..02f23fb3b --- /dev/null +++ b/tools/qa/cppunit/test_color.cxx @@ -0,0 +1,252 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <sal/types.h> +#include <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <tools/color.hxx> + +namespace +{ + +class Test: public CppUnit::TestFixture +{ +public: + void testVariables(); + void test_asRGBColor(); + void test_ApplyTintOrShade(); + void test_ApplyLumModOff(); + void testGetColorError(); + void testInvert(); + void testBColor(); + void testLuminance(); + + CPPUNIT_TEST_SUITE(Test); + CPPUNIT_TEST(testVariables); + CPPUNIT_TEST(test_asRGBColor); + CPPUNIT_TEST(test_ApplyTintOrShade); + CPPUNIT_TEST(test_ApplyLumModOff); + CPPUNIT_TEST(testGetColorError); + CPPUNIT_TEST(testInvert); + CPPUNIT_TEST(testBColor); + CPPUNIT_TEST(testLuminance); + CPPUNIT_TEST_SUITE_END(); +}; + +void Test::testVariables() +{ + Color aColor(0x44, 0x88, 0xAA); + CPPUNIT_ASSERT_EQUAL(int(0x00), int(255 - aColor.GetAlpha())); + CPPUNIT_ASSERT_EQUAL(int(0x44), int(aColor.GetRed())); + CPPUNIT_ASSERT_EQUAL(int(0x88), int(aColor.GetGreen())); + CPPUNIT_ASSERT_EQUAL(int(0xAA), int(aColor.GetBlue())); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x004488AA), sal_uInt32(aColor)); + + aColor = Color(ColorTransparency, 0xAABBCCDD); + CPPUNIT_ASSERT_EQUAL(int(0xAA), int(255 - aColor.GetAlpha())); + CPPUNIT_ASSERT_EQUAL(int(0xBB), int(aColor.GetRed())); + CPPUNIT_ASSERT_EQUAL(int(0xCC), int(aColor.GetGreen())); + CPPUNIT_ASSERT_EQUAL(int(0xDD), int(aColor.GetBlue())); + + aColor.SetAlpha(255 - 0x11); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x11BBCCDD), sal_uInt32(aColor)); + + aColor.SetRed(0x22); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x1122CCDD), sal_uInt32(aColor)); + + aColor.SetGreen(0x33); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x112233DD), sal_uInt32(aColor)); + + aColor.SetBlue(0x44); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x11223344), sal_uInt32(aColor)); + + aColor.SetAlpha(255 - 0x77); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x77223344), sal_uInt32(aColor)); + + aColor.SetRed(0x88); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x77883344), sal_uInt32(aColor)); + + aColor.SetGreen(0x99); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x77889944), sal_uInt32(aColor)); + + aColor.SetBlue(0xAA); + CPPUNIT_ASSERT_EQUAL(sal_uInt32(0x778899AA), sal_uInt32(aColor)); +} + +void Test::test_asRGBColor() +{ + Color aColor; + aColor = COL_BLACK; + CPPUNIT_ASSERT_EQUAL(OUString("000000"), aColor.AsRGBHexString()); + + aColor = COL_WHITE; + CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString()); + + aColor = COL_RED; + CPPUNIT_ASSERT_EQUAL(OUString("800000"), aColor.AsRGBHexString()); + + aColor = COL_TRANSPARENT; + CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString()); + + aColor = COL_BLUE; + CPPUNIT_ASSERT_EQUAL(OUString("000080"), aColor.AsRGBHexString()); + + aColor.SetRed(0x12); + aColor.SetGreen(0x34); + aColor.SetBlue(0x56); + CPPUNIT_ASSERT_EQUAL(OUString("123456"), aColor.AsRGBHexString()); + + aColor = COL_AUTO; + CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), aColor.AsRGBHexString()); +} + +OUString createTintShade(sal_uInt8 nR, sal_uInt8 nG, sal_uInt8 nB, std::u16string_view sReference, sal_Int16 nTintShade) +{ + Color aColor(nR, nG, nB); + if (sReference != aColor.AsRGBHexString()) + return OUString(); + aColor.ApplyTintOrShade(nTintShade); + return aColor.AsRGBHexString(); +} + +void Test::test_ApplyTintOrShade() +{ + // BLACK reference + + // 5% tint + CPPUNIT_ASSERT_EQUAL(OUString("0d0d0d"), createTintShade(0x00, 0x00, 0x00, u"000000", 500)); + // 15% tint + CPPUNIT_ASSERT_EQUAL(OUString("262626"), createTintShade(0x00, 0x00, 0x00, u"000000", 1500)); + // 25% tint + CPPUNIT_ASSERT_EQUAL(OUString("404040"), createTintShade(0x00, 0x00, 0x00, u"000000", 2500)); + // 50% tint + CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0x00, 0x00, 0x00, u"000000", 5000)); + // 100% tint + CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), createTintShade(0x00, 0x00, 0x00, u"000000", 10000)); + + // WHITE reference + + // 5% shade + CPPUNIT_ASSERT_EQUAL(OUString("f2f2f2"), createTintShade(0xff, 0xff, 0xff, u"ffffff", -500)); + // 15% shade + CPPUNIT_ASSERT_EQUAL(OUString("d9d9d9"), createTintShade(0xff, 0xff, 0xff, u"ffffff", -1500)); + // 25% shade + CPPUNIT_ASSERT_EQUAL(OUString("bfbfbf"), createTintShade(0xff, 0xff, 0xff, u"ffffff", -2500)); + // 50% shade + CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0xff, 0xff, 0xff, u"ffffff", -5000)); + // 100% shade + CPPUNIT_ASSERT_EQUAL(OUString("000000"), createTintShade(0xff, 0xff, 0xff, u"ffffff", -10000)); + + // GREY reference + + // 0% - no change + CPPUNIT_ASSERT_EQUAL(OUString("808080"), createTintShade(0x80, 0x80, 0x80, u"808080", 0)); + + // 25% tint + CPPUNIT_ASSERT_EQUAL(OUString("a0a0a0"), createTintShade(0x80, 0x80, 0x80, u"808080", 2500)); + // 50% tint + //CPPUNIT_ASSERT_EQUAL(OUString("c0c0c0"), createTintShade(0x80, 0x80, 0x80, "808080", 5000)); + // disable for now - a rounding error happens on come platforms... + // 100% tint + CPPUNIT_ASSERT_EQUAL(OUString("ffffff"), createTintShade(0x80, 0x80, 0x80, u"808080", 10000)); + + // 25% shade + CPPUNIT_ASSERT_EQUAL(OUString("606060"), createTintShade(0x80, 0x80, 0x80, u"808080", -2500)); + // 50% shade + CPPUNIT_ASSERT_EQUAL(OUString("404040"), createTintShade(0x80, 0x80, 0x80, u"808080", -5000)); + // 100% shade + CPPUNIT_ASSERT_EQUAL(OUString("000000"), createTintShade(0x80, 0x80, 0x80, u"808080", -10000)); +} + +void Test::test_ApplyLumModOff() +{ + // Kind of blue. + Color aColor(0x44, 0x72, 0xC4); + + // PowerPoint calls this "Lighter 40%". + aColor.ApplyLumModOff(6000, 4000); + + CPPUNIT_ASSERT_EQUAL(OUString("8faadc"), aColor.AsRGBHexString()); +} + +void Test::testGetColorError() +{ + CPPUNIT_ASSERT_EQUAL(sal_uInt16(0), Color(0xAA, 0xBB, 0xCC).GetColorError(Color(0xAA, 0xBB, 0xCC))); + + CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB0, 0xC0))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB1, 0xC0))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB0, 0xC1))); + + CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC0))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA0, 0xB1, 0xC1))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(2), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB0, 0xC1))); + + CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1))); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(3), Color(0xA0, 0xB0, 0xC0).GetColorError(Color(0xA1, 0xB1, 0xC1))); +} + +void Test::testInvert() +{ + Color aColor(0xFF, 0x00, 0x88); + aColor.Invert(); + CPPUNIT_ASSERT_EQUAL(Color(0x00, 0xFF, 0x77).AsRGBHexString(), aColor.AsRGBHexString()); + + // Alpha should be unaffected + aColor = Color(ColorTransparency, 0x22, 0xFF, 0x00, 0x88); + aColor.Invert(); + CPPUNIT_ASSERT_EQUAL(Color(ColorTransparency, 0x22, 0x00, 0xFF, 0x77).AsRGBHexString(), aColor.AsRGBHexString()); +} + +void Test::testBColor() +{ + Color aColor; + + aColor = Color(basegfx::BColor(0.0, 0.0, 0.0)); + + CPPUNIT_ASSERT_EQUAL(Color(0x00, 0x00, 0x00).AsRGBHexString(), aColor.AsRGBHexString()); + CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getRed()); + CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getGreen()); + CPPUNIT_ASSERT_EQUAL(0.0, aColor.getBColor().getBlue()); + + aColor = Color(basegfx::BColor(1.0, 1.0, 1.0)); + + CPPUNIT_ASSERT_EQUAL(Color(0xFF, 0xFF, 0xFF).AsRGBHexString(), aColor.AsRGBHexString()); + CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getRed()); + CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getGreen()); + CPPUNIT_ASSERT_EQUAL(1.0, aColor.getBColor().getBlue()); + + aColor = Color(basegfx::BColor(0.5, 0.25, 0.125)); + + CPPUNIT_ASSERT_EQUAL(Color(0x80, 0x40, 0x20).AsRGBHexString(), aColor.AsRGBHexString()); + // FP error is rather big, but that's normal + CPPUNIT_ASSERT_DOUBLES_EQUAL(0.500, aColor.getBColor().getRed(), 1E-2); + CPPUNIT_ASSERT_DOUBLES_EQUAL(0.250, aColor.getBColor().getGreen(), 1E-2); + CPPUNIT_ASSERT_DOUBLES_EQUAL(0.125, aColor.getBColor().getBlue(), 1E-2); + +} + +void Test::testLuminance() +{ + CPPUNIT_ASSERT_EQUAL(sal_uInt8(0), COL_BLACK.GetLuminance()); + CPPUNIT_ASSERT_EQUAL(sal_uInt8(255), COL_WHITE.GetLuminance()); + CPPUNIT_ASSERT_EQUAL(sal_uInt8(128), Color(128, 128, 128).GetLuminance()); + CPPUNIT_ASSERT(COL_WHITE.IsBright()); + CPPUNIT_ASSERT(COL_BLACK.IsDark()); + CPPUNIT_ASSERT(Color(249, 250, 251).IsBright()); + CPPUNIT_ASSERT(Color(9, 10, 11).IsDark()); + CPPUNIT_ASSERT(COL_WHITE.GetLuminance() > COL_BLACK.GetLuminance()); +} + +CPPUNIT_TEST_SUITE_REGISTRATION(Test); + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |