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, 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: */