drawinglayer/source/processor2d/helperwrongspellrenderer.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "helperwrongspellrenderer.hxx"
  21 #include <drawinglayer/primitive2d/wrongspellprimitive2d.hxx>
  22 #include <tools/gen.hxx>
  23 #include <vcl/outdev.hxx>
  24 #include <basegfx/color/bcolormodifier.hxx>
  25 #include <vcl/outdev/ScopedStates.hxx>
  26
  27 using namespace css;
  28
  29 namespace drawinglayer
  30 {
  31 namespace
  32 {
  33 constexpr sal_uInt32 constMinimumFontHeight = 5; // #define WRONG_SHOW_MIN 5
  34 }
  35
  36 bool renderWrongSpellPrimitive2D(const primitive2d::WrongSpellPrimitive2D& rWrongSpellCandidate,
  37                                  OutputDevice& rOutputDevice,
  38                                  const basegfx::B2DHomMatrix& rObjectToViewTransformation,
  39                                  const basegfx::BColorModifierStack& rBColorModifierStack)
  40 {
  41     const basegfx::B2DHomMatrix aLocalTransform(rObjectToViewTransformation
  42                                                 * rWrongSpellCandidate.getTransformation());
  43     const basegfx::B2DVector aFontVectorPixel(aLocalTransform * basegfx::B2DVector(0.0, 1.0));
  44     const sal_uInt32 nFontPixelHeight(basegfx::fround(aFontVectorPixel.getLength()));
  45
  46     if (nFontPixelHeight <= constMinimumFontHeight)
  47         return true;
  48
  49     const basegfx::B2DPoint aStart(aLocalTransform
  50                                    * basegfx::B2DPoint(rWrongSpellCandidate.getStart(), 0.0));
  51     const basegfx::B2DPoint aStop(aLocalTransform
  52                                   * basegfx::B2DPoint(rWrongSpellCandidate.getStop(), 0.0));
  53     const Point aVclStart(basegfx::fround(aStart.getX()), basegfx::fround(aStart.getY()));
  54     const Point aVclStop(basegfx::fround(aStop.getX()), basegfx::fround(aStop.getY()));
  55
  56     // #i101075# draw it. Do not forget to use the evtl. offsetted origin of the target device,
  57     // e.g. when used with mask/transparence buffer device
  58     const Point aOrigin(rOutputDevice.GetMapMode().GetOrigin());
  59
  60     const basegfx::BColor aProcessedColor(
  61         rBColorModifierStack.getModifiedColor(rWrongSpellCandidate.getColor()));
  62     const bool bMapModeEnabledState(rOutputDevice.IsMapModeEnabled());
  63
  64     vcl::ScopedAntialiasing a(rOutputDevice, true);
  65     rOutputDevice.EnableMapMode(false);
  66     rOutputDevice.SetLineColor(Color(aProcessedColor));
  67     rOutputDevice.SetFillColor();
  68     rOutputDevice.DrawWaveLine(aOrigin + aVclStart, aOrigin + aVclStop);
  69     rOutputDevice.EnableMapMode(bMapModeEnabledState);
  70
  71     // cannot really go wrong
  72     return true;
  73 }
  74 } // end of namespace drawinglayer
  75
  76 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */