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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /drawinglayer/source/primitive2d/texteffectprimitive2d.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drawinglayer/source/primitive2d/texteffectprimitive2d.cxx')
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+/* -*- 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: */