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: */