drawinglayer/inc/processor3d/geometry2dextractor.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <drawinglayer/processor3d/baseprocessor3d.hxx>
  23 #include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
  24 #include <basegfx/matrix/b2dhommatrix.hxx>
  25 #include <basegfx/color/bcolormodifier.hxx>
  26
  27
  28 namespace drawinglayer::processor3d
  29     {
  30         /** Geometry2DExtractingProcessor class
  31
  32             This processor extracts the 2D geometry (projected geometry) of all fed primitives.
  33             It is e.g. used as sub-processor for contour extraction where 3D geometry is only
  34             useful as 2D projected geometry.
  35          */
  36         class Geometry2DExtractingProcessor final : public BaseProcessor3D
  37         {
  38         private:
  39             /// result holding vector (2D)
  40             primitive2d::Primitive2DContainer                  maPrimitive2DSequence;
  41
  42             /// object transformation for scene for 2d definition
  43             basegfx::B2DHomMatrix                           maObjectTransformation;
  44
  45             /// the modifiedColorPrimitive stack
  46             basegfx::BColorModifierStack                    maBColorModifierStack;
  47
  48             /*  as tooling, the process() implementation takes over API handling and calls this
  49                 virtual render method when the primitive implementation is BasePrimitive3D-based.
  50              */
  51             virtual void processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate) override;
  52
  53         public:
  54             Geometry2DExtractingProcessor(
  55                 const geometry::ViewInformation3D& rViewInformation,
  56                 const basegfx::B2DHomMatrix& rObjectTransformation);
  57
  58             // data read access
  59             const primitive2d::Primitive2DContainer& getPrimitive2DSequence() const { return maPrimitive2DSequence; }
  60             const basegfx::B2DHomMatrix& getObjectTransformation() const { return maObjectTransformation; }
  61         };
  62
  63 } // end of namespace drawinglayer::processor3d
  64
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */