drawinglayer/source/processor2d/helperwrongspellrenderer.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 "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     bool renderWrongSpellPrimitive2D(
  32         const primitive2d::WrongSpellPrimitive2D& rWrongSpellCandidate,
  33         OutputDevice& rOutputDevice,
  34         const basegfx::B2DHomMatrix& rObjectToViewTransformation,
  35         const basegfx::BColorModifierStack& rBColorModifierStack)
  36     {
  37         const basegfx::B2DHomMatrix aLocalTransform(rObjectToViewTransformation * rWrongSpellCandidate.getTransformation());
  38         const basegfx::B2DVector aFontVectorPixel(aLocalTransform * basegfx::B2DVector(0.0, 1.0));
  39         const sal_uInt32 nFontPixelHeight(basegfx::fround(aFontVectorPixel.getLength()));
  40
  41         static const sal_uInt32 nMinimumFontHeight(5); // #define WRONG_SHOW_MIN         5
  42
  43         if(nFontPixelHeight > nMinimumFontHeight)
  44         {
  45             const basegfx::B2DPoint aStart(aLocalTransform * basegfx::B2DPoint(rWrongSpellCandidate.getStart(), 0.0));
  46             const basegfx::B2DPoint aStop(aLocalTransform * basegfx::B2DPoint(rWrongSpellCandidate.getStop(), 0.0));
  47             const Point aVclStart(basegfx::fround(aStart.getX()), basegfx::fround(aStart.getY()));
  48             const Point aVclStop(basegfx::fround(aStop.getX()), basegfx::fround(aStop.getY()));
  49
  50             // #i101075# draw it. Do not forget to use the evtl. offsetted origin of the target device,
  51             // e.g. when used with mask/transparence buffer device
  52             const Point aOrigin(rOutputDevice.GetMapMode().GetOrigin());
  53
  54             const basegfx::BColor aProcessedColor(rBColorModifierStack.getModifiedColor(rWrongSpellCandidate.getColor()));
  55             const bool bMapModeEnabledState(rOutputDevice.IsMapModeEnabled());
  56
  57             vcl::ScopedAntialiasing a(rOutputDevice, true);
  58             rOutputDevice.EnableMapMode(false);
  59             rOutputDevice.SetLineColor(Color(aProcessedColor));
  60             rOutputDevice.SetFillColor();
  61             rOutputDevice.DrawWaveLine(aOrigin + aVclStart, aOrigin + aVclStop);
  62             rOutputDevice.EnableMapMode(bMapModeEnabledState);
  63         }
  64
  65         // cannot really go wrong
  66         return true;
  67     }
  68 } // end of namespace drawinglayer
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */