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Diffstat (limited to 'drawinglayer/source/processor2d/textaspolygonextractor2d.cxx')
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1 files changed, 231 insertions, 0 deletions
diff --git a/drawinglayer/source/processor2d/textaspolygonextractor2d.cxx b/drawinglayer/source/processor2d/textaspolygonextractor2d.cxx new file mode 100644 index 000000000..fcf15b189 --- /dev/null +++ b/drawinglayer/source/processor2d/textaspolygonextractor2d.cxx @@ -0,0 +1,231 @@ +/* -*- 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 <drawinglayer/processor2d/textaspolygonextractor2d.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> +#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx> +#include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx> +#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx> +#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx> +#include <drawinglayer/primitive2d/transformprimitive2d.hxx> + + +namespace drawinglayer::processor2d +{ + void TextAsPolygonExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) + { + switch(rCandidate.getPrimitive2DID()) + { + case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D : + { + // TextDecoratedPortionPrimitive2D can produce the following primitives + // when being decomposed: + // + // - TextSimplePortionPrimitive2D + // - PolygonWavePrimitive2D + // - PolygonStrokePrimitive2D + // - PolygonStrokePrimitive2D + // - PolyPolygonColorPrimitive2D + // - PolyPolygonHairlinePrimitive2D + // - PolygonHairlinePrimitive2D + // - ShadowPrimitive2D + // - ModifiedColorPrimitive2D + // - TransformPrimitive2D + // - TextEffectPrimitive2D + // - ModifiedColorPrimitive2D + // - TransformPrimitive2D + // - GroupPrimitive2D + + // encapsulate with flag and use decomposition + mnInText++; + process(rCandidate); + mnInText--; + + break; + } + case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D : + { + // TextSimplePortionPrimitive2D can produce the following primitives + // when being decomposed: + // + // - PolyPolygonColorPrimitive2D + // - TextEffectPrimitive2D + // - ModifiedColorPrimitive2D + // - TransformPrimitive2D + // - GroupPrimitive2D + + // encapsulate with flag and use decomposition + mnInText++; + process(rCandidate); + mnInText--; + + break; + } + + // as can be seen from the TextSimplePortionPrimitive2D and the + // TextDecoratedPortionPrimitive2D, inside of the mnInText marks + // the following primitives can occur containing geometry data + // from text decomposition: + // + // - PolyPolygonColorPrimitive2D + // - PolygonHairlinePrimitive2D + // - PolyPolygonHairlinePrimitive2D (for convenience) + // + case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D : + { + if(mnInText) + { + const primitive2d::PolyPolygonColorPrimitive2D& rPoPoCoCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate)); + basegfx::B2DPolyPolygon aPolyPolygon(rPoPoCoCandidate.getB2DPolyPolygon()); + + if(aPolyPolygon.count()) + { + // transform the PolyPolygon + aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation()); + + // get evtl. corrected color + const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoCoCandidate.getBColor())); + + // add to result vector + maTarget.emplace_back(aPolyPolygon, aColor, true); + } + } + + break; + } + case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D : + { + if(mnInText) + { + const primitive2d::PolygonHairlinePrimitive2D& rPoHaCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate)); + basegfx::B2DPolygon aPolygon(rPoHaCandidate.getB2DPolygon()); + + if(aPolygon.count()) + { + // transform the Polygon + aPolygon.transform(getViewInformation2D().getObjectToViewTransformation()); + + // get evtl. corrected color + const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoHaCandidate.getBColor())); + + // add to result vector + maTarget.emplace_back(basegfx::B2DPolyPolygon(aPolygon), aColor, false); + } + } + + break; + } + case PRIMITIVE2D_ID_POLYPOLYGONHAIRLINEPRIMITIVE2D : + { + if(mnInText) + { + const primitive2d::PolyPolygonHairlinePrimitive2D& rPoPoHaCandidate(static_cast< const primitive2d::PolyPolygonHairlinePrimitive2D& >(rCandidate)); + basegfx::B2DPolyPolygon aPolyPolygon(rPoPoHaCandidate.getB2DPolyPolygon()); + + if(aPolyPolygon.count()) + { + // transform the Polygon + aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation()); + + // get evtl. corrected color + const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoHaCandidate.getBColor())); + + // add to result vector + maTarget.emplace_back(aPolyPolygon, aColor, false); + } + } + + break; + } + + // usage of color modification stack is needed + case PRIMITIVE2D_ID_MODIFIEDCOLORPRIMITIVE2D : + { + const primitive2d::ModifiedColorPrimitive2D& rModifiedColorCandidate(static_cast< const primitive2d::ModifiedColorPrimitive2D& >(rCandidate)); + + if(!rModifiedColorCandidate.getChildren().empty()) + { + maBColorModifierStack.push(rModifiedColorCandidate.getColorModifier()); + process(rModifiedColorCandidate.getChildren()); + maBColorModifierStack.pop(); + } + + break; + } + + // usage of transformation stack is needed + case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D : + { + // remember current transformation and ViewInformation + const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate)); + const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D()); + + // create new transformations for CurrentTransformation and for local ViewInformation2D + const geometry::ViewInformation2D aViewInformation2D( + getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(), + getViewInformation2D().getViewTransformation(), + getViewInformation2D().getViewport(), + getViewInformation2D().getVisualizedPage(), + getViewInformation2D().getViewTime()); + updateViewInformation(aViewInformation2D); + + // process content + process(rTransformCandidate.getChildren()); + + // restore transformations + updateViewInformation(aLastViewInformation2D); + + break; + } + + // ignorable primitives + case PRIMITIVE2D_ID_SCENEPRIMITIVE2D : + case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D : + case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D : + case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D : + case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D : + case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D : + case PRIMITIVE2D_ID_MASKPRIMITIVE2D : + { + break; + } + + default : + { + // process recursively + process(rCandidate); + break; + } + } + } + + TextAsPolygonExtractor2D::TextAsPolygonExtractor2D(const geometry::ViewInformation2D& rViewInformation) + : BaseProcessor2D(rViewInformation), + maBColorModifierStack(), + mnInText(0) + { + } + + TextAsPolygonExtractor2D::~TextAsPolygonExtractor2D() + { + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |