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| -rw-r--r-- | drawinglayer/source/primitive2d/texteffectprimitive2d.cxx | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx b/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx new file mode 100644 index 000000000..b552793bf --- /dev/null +++ b/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx @@ -0,0 +1,246 @@ +/* -*- 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 +{ + static 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( + 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( + 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( + getTextContent(), + aBColorModifierToGray)); + + rContainer.push_back( + new TransformPrimitive2D( + aTransform, + Primitive2DContainer { xModifiedColor })); + + // add original, too + rContainer.push_back(new GroupPrimitive2D(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, getTextContent())); + + aTransform.set(0, 2, aDiagonalDistance.getX()); + aTransform.set(1, 2, aDiagonalDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, 0.0); + aTransform.set(1, 2, aDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, -aDiagonalDistance.getX()); + aTransform.set(1, 2, aDiagonalDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, -aDistance.getX()); + aTransform.set(1, 2, 0.0); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, -aDiagonalDistance.getX()); + aTransform.set(1, 2, -aDiagonalDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, 0.0); + aTransform.set(1, 2, -aDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, getTextContent())); + + aTransform.set(0, 2, aDiagonalDistance.getX()); + aTransform.set(1, 2, -aDiagonalDistance.getY()); + rContainer.push_back(new TransformPrimitive2D(aTransform, 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( + getTextContent(), + aBColorModifierToWhite)); + + break; + } + } + } + + TextEffectPrimitive2D::TextEffectPrimitive2D( + const Primitive2DContainer& rTextContent, + const basegfx::B2DPoint& rRotationCenter, + double fDirection, + TextEffectStyle2D eTextEffectStyle2D) + : BufferedDecompositionPrimitive2D(), + maTextContent(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 + { + ::osl::MutexGuard aGuard( m_aMutex ); + + 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 + ImplPrimitive2DIDBlock(TextEffectPrimitive2D, PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D) + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |