119 lines
3.9 KiB
C#
119 lines
3.9 KiB
C#
#region PDFsharp Charting - A .NET charting library based on PDFsharp
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//
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// Authors:
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// Niklas Schneider
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//
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// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
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//
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// http://www.pdfsharp.com
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// http://sourceforge.net/projects/pdfsharp
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#endregion
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using PdfSharp.Drawing;
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namespace PdfSharp.Charting.Renderers
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{
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/// <summary>
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/// Represents a renderer specialized to draw lines in various styles, colors and widths.
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/// </summary>
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class LineFormatRenderer
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{
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/// <summary>
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/// Initializes a new instance of the LineFormatRenderer class with the specified graphics, line format
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/// and default width.
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/// </summary>
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public LineFormatRenderer(XGraphics gfx, LineFormat lineFormat, double defaultWidth)
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{
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_gfx = gfx;
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bool visible = false;
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double width = 0;
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if (lineFormat != null)
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{
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width = lineFormat._width;
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if (width == 0 && !lineFormat.Color.IsEmpty)
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width = defaultWidth;
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visible = lineFormat.Visible || width > 0 || !lineFormat.Color.IsEmpty;
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}
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if (visible)
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{
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_pen = new XPen(lineFormat.Color, width);
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_pen.DashStyle = lineFormat.DashStyle;
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}
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}
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/// <summary>
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/// Initializes a new instance of the LineFormatRenderer class with the specified graphics and
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/// line format.
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/// </summary>
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public LineFormatRenderer(XGraphics gfx, LineFormat lineFormat) :
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this(gfx, lineFormat, 0)
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{ }
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/// <summary>
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/// Initializes a new instance of the LineFormatRenderer class with the specified graphics and pen.
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/// </summary>
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public LineFormatRenderer(XGraphics gfx, XPen pen)
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{
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_gfx = gfx;
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_pen = pen;
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}
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/// <summary>
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/// Draws a line from point pt0 to point pt1.
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/// </summary>
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public void DrawLine(XPoint pt0, XPoint pt1)
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{
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if (_pen != null)
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_gfx.DrawLine(_pen, pt0, pt1);
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}
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/// <summary>
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/// Draws a line specified by rect.
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/// </summary>
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public void DrawRectangle(XRect rect)
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{
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if (_pen != null)
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_gfx.DrawRectangle(_pen, rect);
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}
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/// <summary>
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/// Draws a line specified by path.
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/// </summary>
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public void DrawPath(XGraphicsPath path)
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{
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if (_pen != null)
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_gfx.DrawPath(_pen, path);
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}
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/// <summary>
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/// Surface to draw the line.
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/// </summary>
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readonly XGraphics _gfx;
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/// <summary>
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/// Pen used to draw the line.
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/// </summary>
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readonly XPen _pen;
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}
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}
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