136 lines
5.2 KiB
C#
136 lines
5.2 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 gridlines used by bar charts, i. e. X axis grid will be rendered
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/// from left to right and Y axis grid will be rendered from top to bottom of the plot area.
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/// </summary>
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internal class BarGridlinesRenderer : GridlinesRenderer
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{
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/// <summary>
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/// Initializes a new instance of the BarGridlinesRenderer class with the
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/// specified renderer parameters.
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/// </summary>
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internal BarGridlinesRenderer(RendererParameters parms)
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: base(parms)
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{ }
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/// <summary>
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/// Draws the gridlines into the plot area.
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/// </summary>
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internal override void Draw()
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{
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ChartRendererInfo cri = (ChartRendererInfo)_rendererParms.RendererInfo;
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XRect plotAreaRect = cri.plotAreaRendererInfo.Rect;
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if (plotAreaRect.IsEmpty)
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return;
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AxisRendererInfo xari = cri.xAxisRendererInfo;
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AxisRendererInfo yari = cri.yAxisRendererInfo;
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double xMin = xari.MinimumScale;
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double xMax = xari.MaximumScale;
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double yMin = yari.MinimumScale;
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double yMax = yari.MaximumScale;
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double xMajorTick = xari.MajorTick;
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double yMajorTick = yari.MajorTick;
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double xMinorTick = xari.MinorTick;
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double yMinorTick = yari.MinorTick;
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double xMaxExtension = xari.MajorTick;
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XMatrix matrix = cri.plotAreaRendererInfo._matrix;
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LineFormatRenderer lineFormatRenderer;
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XGraphics gfx = _rendererParms.Graphics;
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XPoint[] points = new XPoint[2];
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if (xari.MinorGridlinesLineFormat != null)
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{
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lineFormatRenderer = new LineFormatRenderer(gfx, xari.MinorGridlinesLineFormat);
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for (double x = xMin + xMinorTick; x < xMax; x += xMinorTick)
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{
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points[0].Y = x;
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points[0].X = yMin;
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points[1].Y = x;
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points[1].X = yMax;
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matrix.TransformPoints(points);
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lineFormatRenderer.DrawLine(points[0], points[1]);
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}
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}
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if (xari.MajorGridlinesLineFormat != null)
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{
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lineFormatRenderer = new LineFormatRenderer(gfx, xari.MajorGridlinesLineFormat);
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for (double x = xMin; x <= xMax; x += xMajorTick)
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{
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points[0].Y = x;
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points[0].X = yMin;
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points[1].Y = x;
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points[1].X = yMax;
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matrix.TransformPoints(points);
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lineFormatRenderer.DrawLine(points[0], points[1]);
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}
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}
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if (yari.MinorGridlinesLineFormat != null)
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{
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lineFormatRenderer = new LineFormatRenderer(gfx, yari.MinorGridlinesLineFormat);
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for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
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{
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points[0].Y = xMin;
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points[0].X = y;
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points[1].Y = xMax;
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points[1].X = y;
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matrix.TransformPoints(points);
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lineFormatRenderer.DrawLine(points[0], points[1]);
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}
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}
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if (yari.MajorGridlinesLineFormat != null)
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{
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lineFormatRenderer = new LineFormatRenderer(gfx, yari.MajorGridlinesLineFormat);
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for (double y = yMin; y <= yMax; y += yMajorTick)
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{
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points[0].Y = xMin;
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points[0].X = y;
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points[1].Y = xMax;
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points[1].X = y;
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matrix.TransformPoints(points);
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lineFormatRenderer.DrawLine(points[0], points[1]);
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}
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}
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}
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}
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}
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