Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 245 insertions, 0 deletions

diff --git a/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx b/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx
new file mode 100644
index 000000000..dae397e1a
--- /dev/null
+++ b/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx
@@ -0,0 +1,245 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <primitive2d/texteffectprimitive2d.hxx>
+#include <drawinglayer/geometry/viewinformation2d.hxx>
+#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
+#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
+#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+
+namespace drawinglayer::primitive2d
+{
+const double fDiscreteSize(1.1);
+
+void TextEffectPrimitive2D::create2DDecomposition(
+    Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
+{
+    // get the distance of one discrete units from target display. Use between 1.0 and sqrt(2) to
+    // have good results on rotated objects, too
+    const basegfx::B2DVector aDistance(rViewInformation.getInverseObjectToViewTransformation()
+                                       * basegfx::B2DVector(fDiscreteSize, fDiscreteSize));
+    const basegfx::B2DVector aDiagonalDistance(aDistance * (1.0 / 1.44));
+
+    switch (getTextEffectStyle2D())
+    {
+        case TextEffectStyle2D::ReliefEmbossed:
+        case TextEffectStyle2D::ReliefEngraved:
+        case TextEffectStyle2D::ReliefEmbossedDefault:
+        case TextEffectStyle2D::ReliefEngravedDefault:
+        {
+            // prepare transform of sub-group back to (0,0) and align to X-Axis
+            basegfx::B2DHomMatrix aBackTransform(basegfx::utils::createTranslateB2DHomMatrix(
+                -getRotationCenter().getX(), -getRotationCenter().getY()));
+            aBackTransform.rotate(-getDirection());
+
+            // prepare transform of sub-group back to its position and rotation
+            basegfx::B2DHomMatrix aForwardTransform(
+                basegfx::utils::createRotateB2DHomMatrix(getDirection()));
+            aForwardTransform.translate(getRotationCenter().getX(), getRotationCenter().getY());
+
+            // create transformation for one discrete unit
+            const bool bEmbossed(TextEffectStyle2D::ReliefEmbossed == getTextEffectStyle2D()
+                                 || TextEffectStyle2D::ReliefEmbossedDefault
+                                        == getTextEffectStyle2D());
+            const bool bDefaultTextColor(
+                TextEffectStyle2D::ReliefEmbossedDefault == getTextEffectStyle2D()
+                || TextEffectStyle2D::ReliefEngravedDefault == getTextEffectStyle2D());
+            basegfx::B2DHomMatrix aTransform(aBackTransform);
+
+            if (bEmbossed)
+            {
+                // to bottom-right
+                aTransform.translate(aDiagonalDistance.getX(), aDiagonalDistance.getY());
+            }
+            else
+            {
+                // to top-left
+                aTransform.translate(-aDiagonalDistance.getX(), -aDiagonalDistance.getY());
+            }
+
+            aTransform *= aForwardTransform;
+
+            if (bDefaultTextColor)
+            {
+                // emboss/engrave in black, original forced to white
+                const basegfx::BColorModifierSharedPtr aBColorModifierToGray
+                    = std::make_shared<basegfx::BColorModifier_replace>(basegfx::BColor(0.0));
+                const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(
+                    Primitive2DContainer(getTextContent()), aBColorModifierToGray));
+
+                rContainer.push_back(
+                    new TransformPrimitive2D(aTransform, Primitive2DContainer{ xModifiedColor }));
+
+                // add original, too
+                const basegfx::BColorModifierSharedPtr aBColorModifierToWhite
+                    = std::make_shared<basegfx::BColorModifier_replace>(basegfx::BColor(1.0));
+
+                rContainer.push_back(new ModifiedColorPrimitive2D(
+                    Primitive2DContainer(getTextContent()), aBColorModifierToWhite));
+            }
+            else
+            {
+                // emboss/engrave in gray, keep original's color
+                const basegfx::BColorModifierSharedPtr aBColorModifierToGray
+                    = std::make_shared<basegfx::BColorModifier_replace>(
+                        basegfx::BColor(0.75)); // 192
+                const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(
+                    Primitive2DContainer(getTextContent()), aBColorModifierToGray));
+
+                rContainer.push_back(
+                    new TransformPrimitive2D(aTransform, Primitive2DContainer{ xModifiedColor }));
+
+                // add original, too
+                rContainer.push_back(new GroupPrimitive2D(Primitive2DContainer(getTextContent())));
+            }
+
+            break;
+        }
+        case TextEffectStyle2D::Outline:
+        {
+            // create transform primitives in all directions
+            basegfx::B2DHomMatrix aTransform;
+
+            aTransform.set(0, 2, aDistance.getX());
+            aTransform.set(1, 2, 0.0);
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, aDiagonalDistance.getX());
+            aTransform.set(1, 2, aDiagonalDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, 0.0);
+            aTransform.set(1, 2, aDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, -aDiagonalDistance.getX());
+            aTransform.set(1, 2, aDiagonalDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, -aDistance.getX());
+            aTransform.set(1, 2, 0.0);
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, -aDiagonalDistance.getX());
+            aTransform.set(1, 2, -aDiagonalDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, 0.0);
+            aTransform.set(1, 2, -aDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            aTransform.set(0, 2, aDiagonalDistance.getX());
+            aTransform.set(1, 2, -aDiagonalDistance.getY());
+            rContainer.push_back(
+                new TransformPrimitive2D(aTransform, Primitive2DContainer(getTextContent())));
+
+            // at last, place original over it, but force to white
+            const basegfx::BColorModifierSharedPtr aBColorModifierToWhite
+                = std::make_shared<basegfx::BColorModifier_replace>(basegfx::BColor(1.0, 1.0, 1.0));
+            rContainer.push_back(new ModifiedColorPrimitive2D(
+                Primitive2DContainer(getTextContent()), aBColorModifierToWhite));
+
+            break;
+        }
+    }
+}
+
+TextEffectPrimitive2D::TextEffectPrimitive2D(Primitive2DContainer&& rTextContent,
+                                             const basegfx::B2DPoint& rRotationCenter,
+                                             double fDirection,
+                                             TextEffectStyle2D eTextEffectStyle2D)
+    : maTextContent(std::move(rTextContent))
+    , maRotationCenter(rRotationCenter)
+    , mfDirection(fDirection)
+    , meTextEffectStyle2D(eTextEffectStyle2D)
+{
+}
+
+bool TextEffectPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
+{
+    if (BasePrimitive2D::operator==(rPrimitive))
+    {
+        const TextEffectPrimitive2D& rCompare
+            = static_cast<const TextEffectPrimitive2D&>(rPrimitive);
+
+        return (getTextContent() == rCompare.getTextContent()
+                && getRotationCenter() == rCompare.getRotationCenter()
+                && getDirection() == rCompare.getDirection()
+                && getTextEffectStyle2D() == rCompare.getTextEffectStyle2D());
+    }
+
+    return false;
+}
+
+basegfx::B2DRange
+TextEffectPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
+{
+    // get range of content and grow by used fDiscreteSize. That way it is not necessary to ask
+    // the whole decomposition for its ranges (which may be expensive with outline mode which
+    // then will ask 9 times at nearly the same content. This may even be refined here using the
+    // TextEffectStyle information, e.g. for TEXTEFFECTSTYLE2D_RELIEF the grow needs only to
+    // be in two directions
+    basegfx::B2DRange aRetval(getTextContent().getB2DRange(rViewInformation));
+    aRetval.grow(fDiscreteSize);
+
+    return aRetval;
+}
+
+void TextEffectPrimitive2D::get2DDecomposition(
+    Primitive2DDecompositionVisitor& rVisitor,
+    const geometry::ViewInformation2D& rViewInformation) const
+{
+    if (!getBuffered2DDecomposition().empty())
+    {
+        if (maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
+        {
+            // conditions of last local decomposition have changed, delete
+            const_cast<TextEffectPrimitive2D*>(this)->setBuffered2DDecomposition(
+                Primitive2DContainer());
+        }
+    }
+
+    if (getBuffered2DDecomposition().empty())
+    {
+        // remember ViewRange and ViewTransformation
+        const_cast<TextEffectPrimitive2D*>(this)->maLastObjectToViewTransformation
+            = rViewInformation.getObjectToViewTransformation();
+    }
+
+    // use parent implementation
+    BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
+}
+
+// provide unique ID
+sal_uInt32 TextEffectPrimitive2D::getPrimitive2DID() const
+{
+    return PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D;
+}
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */