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2026-10-02 00:05:54 +00:00 · 2016-03-05 14:06:38 +01:00
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+/*
+ * NPlot - A charting library for .NET
+ * 
+ * TextItem.cs
+ * Copyright (C) 2003-2006 Matt Howlett and others.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of NPlot nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Drawing;
+
+namespace NPlot
+{
+	/// <summary>
+	/// This class implements drawing text against two physical axes.
+	/// </summary>
+	public class TextItem : IDrawable
+	{
+		private void Init()
+		{
+			FontFamily fontFamily = new FontFamily("Arial");
+			font_ = new Font(fontFamily, 10, FontStyle.Regular, GraphicsUnit.Pixel);
+		}
+
+		/// <summary>
+		/// Constructor
+		/// </summary>
+		/// <param name="position">The position the text starts.</param>
+		/// <param name="text">The text.</param>
+		public TextItem( PointD position, string text )
+		{
+			start_ = position;
+			text_ = text;
+			Init();
+		}
+
+
+		/// <summary>
+		/// Text associated.
+		/// </summary>
+		public string Text 
+		{
+			get
+			{
+				return text_;
+			}
+			set
+			{
+				text_ = value;
+			}
+		}
+		private string text_ = "";
+
+
+		/// <summary>
+		/// The starting point for the text.
+		/// </summary>
+		public PointD Start
+		{
+			get
+			{
+				return start_;
+			}
+			set
+			{
+				start_ = value;
+			}
+		}
+		private PointD start_;
+
+
+		/// <summary>
+		/// Draws the text on a plot surface.
+		/// </summary>
+		/// <param name="g">graphics surface on which to draw</param>
+		/// <param name="xAxis">The X-Axis to draw against.</param>
+		/// <param name="yAxis">The Y-Axis to draw against.</param>
+		public void Draw( System.Drawing.Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis )
+		{
+			Point startPoint = new Point( 
+				(int)xAxis.WorldToPhysical( start_.X, true ).X,
+				(int)yAxis.WorldToPhysical( start_.Y, true ).Y );
+
+			g.DrawString(text_, font_, textBrush_,(int)startPoint.X,(int)startPoint.Y);
+		}
+
+
+		/// <summary>
+		/// The brush used to draw the text.
+		/// </summary>
+		public Brush TextBrush
+		{
+			get
+			{
+				return textBrush_;
+			}
+			set
+			{
+				textBrush_ = value;
+			}
+		}
+
+	
+		/// <summary>
+		/// Set the text to be drawn with a solid brush of this color.
+		/// </summary>
+		public Color TextColor
+		{
+			set
+			{
+				textBrush_ = new SolidBrush( value );
+			}
+		}
+	
+		/// <summary>
+		/// The font used to draw the text associated with the arrow.
+		/// </summary>
+		public Font TextFont
+		{
+			get
+			{
+				return this.font_;
+			}
+			set
+			{
+				this.font_ = value;
+			}
+		}
+
+		private Brush textBrush_ = new SolidBrush( Color.Black );
+		private Pen pen_ = new Pen( Color.Black );
+		private Font font_;
+	}
+}