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/polygonprimitive2d.hxx>
15 #include <drawinglayer/primitive2d/PolyPolygonStrokePrimitive2D.hxx>
16 #include <drawinglayer/processor2d/baseprocessor2d.hxx>
17 #include <drawinglayer/processor2d/processorfromoutputdevice.hxx>
18 #include <vcl/svapp.hxx>
19 #include <vcl/settings.hxx>
20 #include <memory>
21
SwDashedLine(vcl::Window * pParent,Color & (* pColorFn)())22 SwDashedLine::SwDashedLine( vcl::Window* pParent, Color& ( *pColorFn )() )
23 : Control( pParent, WB_DIALOGCONTROL | WB_HORZ )
24 , m_pColorFn( pColorFn )
25 {
26 }
27
~SwDashedLine()28 SwDashedLine::~SwDashedLine( )
29 {
30 }
31
Paint(vcl::RenderContext & rRenderContext,const tools::Rectangle &)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::createBaseProcessor2DFromOutputDevice(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 = 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(m_pColorFn().getBColor()),
86 drawinglayer::attribute::StrokeAttribute(aStrokePattern));
87
88 pProcessor->process(aSeq);
89 }
90
91 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
92