tdf#155735: Add support for matrix type

Change-Id: Icc172c5f47731ddcf0beca64c72c2022313e74a7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153177
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

2 files changed, 117 insertions, 0 deletions

diff --git a/basegfx/source/color/bcolormodifier.cxx b/basegfx/source/color/bcolormodifier.cxx
index 8d6f99a3faf5..829b0abda659 100644
--- a/basegfx/source/color/bcolormodifier.cxx
+++ b/basegfx/source/color/bcolormodifier.cxx
@@ -142,6 +142,38 @@ namespace basegfx
         return "interpolate";
     }
 
+    BColorModifier_matrix::~BColorModifier_matrix()
+    {
+    }
+
+    bool BColorModifier_matrix::operator==(const BColorModifier& rCompare) const
+    {
+        const BColorModifier_matrix* pCompare = dynamic_cast< const BColorModifier_matrix* >(&rCompare);
+
+        if(!pCompare)
+        {
+            return false;
+        }
+
+        return maMatrix == pCompare->maMatrix;
+    }
+
+    ::basegfx::BColor BColorModifier_matrix::getModifiedColor(const ::basegfx::BColor& aSourceColor) const
+    {
+        basegfx::B3DHomMatrix aColorMatrix;
+        aColorMatrix.set(0, 0, aSourceColor.getRed());
+        aColorMatrix.set(1, 0, aSourceColor.getGreen());
+        aColorMatrix.set(2, 0, aSourceColor.getBlue());
+
+        aColorMatrix = maMatrix * aColorMatrix;
+        return ::basegfx::BColor(aColorMatrix.get(0, 0), aColorMatrix.get(1, 0), aColorMatrix.get(2, 0));
+    }
+
+    OUString BColorModifier_matrix::getModifierName() const
+    {
+        return "matrix";
+    }
+
     BColorModifier_saturate::BColorModifier_saturate(double fValue)
     {
         maSatMatrix.set(0, 0, 0.213 + 0.787 * fValue);
diff --git a/basegfx/test/BColorModifierTest.cxx b/basegfx/test/BColorModifierTest.cxx
index d6e0648d2c17..17b6a0c22257 100755
--- a/basegfx/test/BColorModifierTest.cxx
+++ b/basegfx/test/BColorModifierTest.cxx
@@ -269,6 +269,89 @@ public:
         CPPUNIT_ASSERT(aBColorModifier->operator==(*aBColorModifier2));
     }
 
+    void testMatrix()
+    {
+        // green matrix
+        basegfx::B3DHomMatrix aMatrix;
+        aMatrix.set(0, 0, 0.0);
+        aMatrix.set(0, 1, 0.0);
+        aMatrix.set(0, 2, 0.0);
+        aMatrix.set(0, 3, 0.0);
+        aMatrix.set(1, 0, 1.0);
+        aMatrix.set(1, 1, 1.0);
+        aMatrix.set(1, 2, 1.0);
+        aMatrix.set(1, 3, 1.0);
+        aMatrix.set(2, 0, 0.0);
+        aMatrix.set(2, 1, 0.0);
+        aMatrix.set(2, 2, 0.0);
+        aMatrix.set(2, 3, 0.0);
+
+        const basegfx::BColorModifierSharedPtr aBColorModifier
+            = std::make_shared<basegfx::BColorModifier_matrix>(aMatrix);
+
+        BColor aExpectedWhite(0.0, 3.0, 0.0);
+        CPPUNIT_ASSERT_EQUAL(aExpectedWhite, aBColorModifier->getModifiedColor(maWhite));
+        BColor aExpectedGray(0.0, 1.5, 0.0);
+        CPPUNIT_ASSERT_EQUAL(aExpectedGray, aBColorModifier->getModifiedColor(maGray));
+        CPPUNIT_ASSERT_EQUAL(maBlack, aBColorModifier->getModifiedColor(maBlack));
+
+        CPPUNIT_ASSERT_EQUAL(maGreen, aBColorModifier->getModifiedColor(maRed));
+        CPPUNIT_ASSERT_EQUAL(maGreen, aBColorModifier->getModifiedColor(maGreen));
+        CPPUNIT_ASSERT_EQUAL(maGreen, aBColorModifier->getModifiedColor(maBlue));
+        BColor aExpectedYellow(0.0, 2.0, 0.0);
+        CPPUNIT_ASSERT_EQUAL(aExpectedYellow, aBColorModifier->getModifiedColor(maYellow));
+        BColor aExpectedMagenta = aExpectedYellow;
+        CPPUNIT_ASSERT_EQUAL(aExpectedMagenta, aBColorModifier->getModifiedColor(maMagenta));
+        BColor aExpectedCyan = aExpectedYellow;
+        CPPUNIT_ASSERT_EQUAL(aExpectedCyan, aBColorModifier->getModifiedColor(maCyan));
+
+        CPPUNIT_ASSERT(aBColorModifier->operator==(*aBColorModifier));
+        const basegfx::BColorModifierSharedPtr aBColorModifierInvert
+            = std::make_shared<basegfx::BColorModifier_invert>();
+        CPPUNIT_ASSERT(*aBColorModifier != *aBColorModifierInvert);
+
+        const basegfx::BColorModifierSharedPtr aBColorModifier2
+            = std::make_shared<basegfx::BColorModifier_matrix>(aMatrix);
+        CPPUNIT_ASSERT(aBColorModifier->operator==(*aBColorModifier2));
+    }
+
+    void testIdentityMatrix()
+    {
+        basegfx::B3DHomMatrix aMatrix;
+        aMatrix.set(0, 0, 1.0);
+        aMatrix.set(0, 1, 0.0);
+        aMatrix.set(0, 2, 0.0);
+        aMatrix.set(1, 0, 0.0);
+        aMatrix.set(1, 1, 1.0);
+        aMatrix.set(1, 2, 0.0);
+        aMatrix.set(2, 0, 0.0);
+        aMatrix.set(2, 1, 0.0);
+        aMatrix.set(2, 2, 1.0);
+
+        const basegfx::BColorModifierSharedPtr aBColorModifier
+            = std::make_shared<basegfx::BColorModifier_matrix>(aMatrix);
+
+        CPPUNIT_ASSERT_EQUAL(maWhite, aBColorModifier->getModifiedColor(maWhite));
+        CPPUNIT_ASSERT_EQUAL(maGray, aBColorModifier->getModifiedColor(maGray));
+        CPPUNIT_ASSERT_EQUAL(maBlack, aBColorModifier->getModifiedColor(maBlack));
+
+        CPPUNIT_ASSERT_EQUAL(maRed, aBColorModifier->getModifiedColor(maRed));
+        CPPUNIT_ASSERT_EQUAL(maGreen, aBColorModifier->getModifiedColor(maGreen));
+        CPPUNIT_ASSERT_EQUAL(maBlue, aBColorModifier->getModifiedColor(maBlue));
+        CPPUNIT_ASSERT_EQUAL(maYellow, aBColorModifier->getModifiedColor(maYellow));
+        CPPUNIT_ASSERT_EQUAL(maMagenta, aBColorModifier->getModifiedColor(maMagenta));
+        CPPUNIT_ASSERT_EQUAL(maCyan, aBColorModifier->getModifiedColor(maCyan));
+
+        CPPUNIT_ASSERT(aBColorModifier->operator==(*aBColorModifier));
+        const basegfx::BColorModifierSharedPtr aBColorModifierInvert
+            = std::make_shared<basegfx::BColorModifier_invert>();
+        CPPUNIT_ASSERT(*aBColorModifier != *aBColorModifierInvert);
+
+        const basegfx::BColorModifierSharedPtr aBColorModifier2
+            = std::make_shared<basegfx::BColorModifier_matrix>(aMatrix);
+        CPPUNIT_ASSERT(aBColorModifier->operator==(*aBColorModifier2));
+    }
+
     CPPUNIT_TEST_SUITE(bcolormodifier);
     CPPUNIT_TEST(testGray);
     CPPUNIT_TEST(testInvert);
@@ -277,6 +360,8 @@ public:
     CPPUNIT_TEST(testSaturate);
     CPPUNIT_TEST(testLuminanceToAlpha);
     CPPUNIT_TEST(testHueRotate);
+    CPPUNIT_TEST(testMatrix);
+    CPPUNIT_TEST(testIdentityMatrix);
     CPPUNIT_TEST_SUITE_END();
 };