drawinglayer/source/primitive2d/wrongspellprimitive2d.cxx

   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 #include <drawinglayer/primitive2d/wrongspellprimitive2d.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <drawinglayer/primitive2d/PolygonWavePrimitive2D.hxx>
  23 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  24 #include <drawinglayer/geometry/viewinformation2d.hxx>
  25 #include <utility>
  26
  27
  28 namespace drawinglayer::primitive2d
  29 {
  30         void WrongSpellPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
  31         {
  32             // ATM this decompose is view-independent, what the original VCL-Display is not. To mimic
  33             // the old behaviour here if wanted it is necessary to add get2DDecomposition and implement
  34             // it similar to the usage in e.g. HelplinePrimitive2D. Remembering the ViewTransformation
  35             // should be enough then.
  36             // The view-independent wavelines work well (if You ask me). Maybe the old VCL-Behaviour is only
  37             // in place because it was not possible/too expensive at that time to scale the wavelines with the
  38             // view...
  39             // With the VCL-PixelRenderer this will not even be used since it implements WrongSpellPrimitive2D
  40             // directly and mimics the old VCL-Display there. If You implemented a new renderer without
  41             // direct WrongSpellPrimitive2D support, You may want to do the described change here.
  42
  43             // get the font height (part of scale), so decompose the matrix
  44             basegfx::B2DVector aScale, aTranslate;
  45             double fRotate, fShearX;
  46             getTransformation().decompose(aScale, aTranslate, fRotate, fShearX);
  47
  48             // calculate distances based on a static default (to allow testing in debugger)
  49             static const double fDefaultDistance(0.03);
  50             const double fFontHeight(aScale.getY());
  51             const double fUnderlineDistance(fFontHeight * fDefaultDistance);
  52             const double fWaveWidth(2.0 * fUnderlineDistance);
  53
  54             // the Y-distance needs to be relative to FontHeight since the points get
  55             // transformed with the transformation containing that scale already.
  56             const double fRelativeUnderlineDistance(basegfx::fTools::equalZero(aScale.getY()) ? 0.0 : fUnderlineDistance / aScale.getY());
  57             basegfx::B2DPoint aStart(getStart(), fRelativeUnderlineDistance);
  58             basegfx::B2DPoint aStop(getStop(), fRelativeUnderlineDistance);
  59             basegfx::B2DPolygon aPolygon;
  60
  61             aPolygon.append(getTransformation() * aStart);
  62             aPolygon.append(getTransformation() * aStop);
  63
  64             // prepare line attribute
  65             const attribute::LineAttribute aLineAttribute(getColor());
  66
  67             // create the waveline primitive
  68             rContainer.push_back(new PolygonWavePrimitive2D(aPolygon, aLineAttribute, fWaveWidth, 0.5 * fWaveWidth));
  69         }
  70
  71         WrongSpellPrimitive2D::WrongSpellPrimitive2D(
  72             basegfx::B2DHomMatrix aTransformation,
  73             double fStart,
  74             double fStop,
  75             const basegfx::BColor& rColor)
  76         :   maTransformation(std::move(aTransformation)),
  77             mfStart(fStart),
  78             mfStop(fStop),
  79             maColor(rColor)
  80         {
  81         }
  82
  83         bool WrongSpellPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
  84         {
  85             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
  86             {
  87                 const WrongSpellPrimitive2D& rCompare = static_cast<const WrongSpellPrimitive2D&>(rPrimitive);
  88
  89                 return (getTransformation() == rCompare.getTransformation()
  90                     && getStart() == rCompare.getStart()
  91                     && getStop() == rCompare.getStop()
  92                     && getColor() == rCompare.getColor());
  93             }
  94
  95             return false;
  96         }
  97
  98         // provide unique ID
  99         sal_uInt32 WrongSpellPrimitive2D::getPrimitive2DID() const
 100         {
 101             return PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D;
 102         }
 103
 104 } // end of namespace
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */