101 lines
4.3 KiB
C#
101 lines
4.3 KiB
C#
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#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 the base class for all chart renderers.
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/// </summary>
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internal abstract class ChartRenderer : Renderer
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{
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/// <summary>
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/// Initializes a new instance of the ChartRenderer class with the specified renderer parameters.
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/// </summary>
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internal ChartRenderer(RendererParameters parms)
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: base(parms)
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{ }
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/// <summary>
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/// Calculates the space used by the legend and returns the remaining space available for the
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/// other parts of the chart.
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/// </summary>
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protected XRect LayoutLegend()
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{
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ChartRendererInfo cri = (ChartRendererInfo)_rendererParms.RendererInfo;
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XRect remainingRect = _rendererParms.Box;
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if (cri.legendRendererInfo != null)
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{
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switch (cri.legendRendererInfo._legend.Docking)
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{
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case DockingType.Left:
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cri.legendRendererInfo.X = remainingRect.Left;
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cri.legendRendererInfo.Y = remainingRect.Height / 2 - cri.legendRendererInfo.Height / 2;
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double width = cri.legendRendererInfo.Width + LegendSpacing;
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remainingRect.X += width;
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remainingRect.Width -= width;
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break;
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case DockingType.Right:
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cri.legendRendererInfo.X = remainingRect.Right - cri.legendRendererInfo.Width;
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cri.legendRendererInfo.Y = remainingRect.Height / 2 - cri.legendRendererInfo.Height / 2;
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remainingRect.Width -= cri.legendRendererInfo.Width + LegendSpacing;
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break;
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case DockingType.Top:
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cri.legendRendererInfo.X = remainingRect.Width / 2 - cri.legendRendererInfo.Width / 2;
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cri.legendRendererInfo.Y = remainingRect.Top;
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double height = cri.legendRendererInfo.Height + LegendSpacing;
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remainingRect.Y += height;
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remainingRect.Height -= height;
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break;
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case DockingType.Bottom:
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cri.legendRendererInfo.X = remainingRect.Width / 2 - cri.legendRendererInfo.Width / 2;
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cri.legendRendererInfo.Y = remainingRect.Bottom - cri.legendRendererInfo.Height;
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remainingRect.Height -= cri.legendRendererInfo.Height + LegendSpacing;
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break;
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}
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}
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return remainingRect;
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}
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/// <summary>
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/// Used to separate the legend from the plot area.
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/// </summary>
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private const double LegendSpacing = 0;
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/// <summary>
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/// Represents the default width for all series lines, like borders in column/bar charts.
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/// </summary>
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protected static readonly double DefaultSeriesLineWidth = 0.15;
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}
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}
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