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Diffstat (limited to 'drawinglayer/source/primitive2d/texteffectprimitive2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/texteffectprimitive2d.cxx | 245 |
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: */ |