sw/source/uibase/docvw/DashedLine.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
  10 #include <DashedLine.hxx>
  11
  12 #include <basegfx/color/bcolortools.hxx>
  13 #include <basegfx/polygon/b2dpolygon.hxx>
  14 #include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
  15 #include <drawinglayer/primitive2d/PolyPolygonStrokePrimitive2D.hxx>
  16 #include <drawinglayer/processor2d/baseprocessor2d.hxx>
  17 #include <drawinglayer/processor2d/processor2dtools.hxx>
  18 #include <vcl/svapp.hxx>
  19 #include <vcl/settings.hxx>
  20 #include <memory>
  21
  22 SwDashedLine::SwDashedLine( vcl::Window* pParent, const Color& ( SwViewOption::* pColorFn )() const )
  23     : Control( pParent, WB_DIALOGCONTROL | WB_HORZ )
  24     , m_pColorFn( pColorFn )
  25 {
  26 }
  27
  28 SwDashedLine::~SwDashedLine( )
  29 {
  30 }
  31
  32 void SwDashedLine::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
  33 {
  34     const drawinglayer::geometry::ViewInformation2D aNewViewInfos;
  35     std::unique_ptr<drawinglayer::processor2d::BaseProcessor2D> pProcessor(
  36         drawinglayer::processor2d::createProcessor2DFromOutputDevice(rRenderContext, aNewViewInfos));
  37
  38     // Compute the start and end points
  39     const tools::Rectangle aRect(tools::Rectangle(Point(0, 0), rRenderContext.PixelToLogic(GetSizePixel())));
  40     double nHalfWidth = double(aRect.Top() + aRect.Bottom()) / 2.0;
  41
  42     basegfx::B2DPoint aStart(double(aRect.Left()), nHalfWidth);
  43     basegfx::B2DPoint aEnd(double(aRect.Right()), nHalfWidth);
  44
  45     basegfx::B2DPolygon aPolygon;
  46     aPolygon.append(aStart);
  47     aPolygon.append(aEnd);
  48
  49     drawinglayer::primitive2d::Primitive2DContainer aSeq(1);
  50
  51     const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
  52
  53     std::vector<double> aStrokePattern;
  54     basegfx::BColor aColor = (SwViewOption::GetCurrentViewOptions().*m_pColorFn)().getBColor();
  55     if (rSettings.GetHighContrastMode())
  56     {
  57         // Only a solid line in high contrast mode
  58         aColor = rSettings.GetDialogTextColor().getBColor();
  59     }
  60     else
  61     {
  62         // Get a color for the contrast
  63         basegfx::BColor aHslLine = basegfx::utils::rgb2hsl(aColor);
  64         double nLuminance = aHslLine.getZ();
  65         nLuminance += (1.0 - nLuminance) * 0.75;
  66         if (aHslLine.getZ() > 0.7)
  67             nLuminance = aHslLine.getZ() * 0.7;
  68         aHslLine.setZ(nLuminance);
  69         const basegfx::BColor aOtherColor = basegfx::utils::hsl2rgb(aHslLine);
  70
  71         // Compute the plain line
  72         aSeq[0] = new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aPolygon, aOtherColor);
  73
  74         // Dashed line in twips
  75         aStrokePattern.push_back(3);
  76         aStrokePattern.push_back(3);
  77
  78         aSeq.resize(2);
  79     }
  80
  81     // Compute the dashed line primitive
  82     aSeq[aSeq.size() - 1] =
  83             new drawinglayer::primitive2d::PolyPolygonStrokePrimitive2D(
  84                 basegfx::B2DPolyPolygon(aPolygon),
  85                 drawinglayer::attribute::LineAttribute((SwViewOption::GetCurrentViewOptions().*m_pColorFn)().getBColor()),
  86                 drawinglayer::attribute::StrokeAttribute(std::move(aStrokePattern)));
  87
  88     pProcessor->process(aSeq);
  89 }
  90
  91 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */