486 lines
18 KiB
C#
486 lines
18 KiB
C#
//============================================================================
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//ZedGraph Class Library - A Flexible Line Graph/Bar Graph Library in C#
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//Copyright ?2006 John Champion
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//
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//This library is free software; you can redistribute it and/or
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//modify it under the terms of the GNU Lesser General Public
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//License as published by the Free Software Foundation; either
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//version 2.1 of the License, or (at your option) any later version.
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//
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//This library is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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//Lesser General Public License for more details.
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//
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//You should have received a copy of the GNU Lesser General Public
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//License along with this library; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//=============================================================================
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#region Using directives
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Text;
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using System.Runtime.Serialization;
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using System.Security.Permissions;
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#endregion
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namespace DrawGraph
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{
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/// <summary>
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/// This class handles the drawing of the curve <see cref="JapaneseCandleStick"/> objects.
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/// </summary>
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///
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/// <author> John Champion </author>
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/// <version> $Revision: 3.10 $ $Date: 2007/04/16 00:03:02 $ </version>
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[Serializable]
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public class JapaneseCandleStick : OHLCBar, ICloneable, ISerializable
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{
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#region Fields
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/// <summary>
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/// Private field to store the <see cref="Fill" /> class to be used for filling the
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/// candlestick "bars" when the <see cref="StockPt.Close" /> value is greater than
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/// the <see cref="StockPt.Open" /> value. See the public property
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/// <see cref="RisingFill" /> to access this value.
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/// </summary>
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private Fill _risingFill;
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/// <summary>
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/// Private field to store the <see cref="Fill" /> class to be used for filling the
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/// candlestick "bars" when the <see cref="StockPt.Close" /> value is less than
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/// the <see cref="StockPt.Open" /> value. See the public property
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/// <see cref="FallingFill" /> to access this value.
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/// </summary>
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private Fill _fallingFill;
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/// <summary>
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/// Private field to store the <see cref="Border" /> class to be used for drawing the
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/// candlestick "bars" when the <see cref="StockPt.Close" /> value is greater than
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/// the <see cref="StockPt.Open" /> value. See the public property
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/// <see cref="RisingBorder" /> to access this value.
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/// </summary>
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private Border _risingBorder;
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/// <summary>
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/// Private field to store the <see cref="Border" /> class to be used for drawing the
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/// candlestick "bars" when the <see cref="StockPt.Close" /> value is less than
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/// the <see cref="StockPt.Open" /> value. See the public property
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/// <see cref="FallingBorder" /> to access this value.
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/// </summary>
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private Border _fallingBorder;
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/// <summary>
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/// Private field that stores the CandleStick color when the <see cref="StockPt.Close" />
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/// value is less than the <see cref="StockPt.Open" /> value. Use the public
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/// property <see cref="FallingColor"/> to access this value.
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/// </summary>
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protected Color _fallingColor;
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#endregion
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#region Defaults
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/// <summary>
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/// A simple struct that defines the
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/// default property values for the <see cref="ZedGraph.JapaneseCandleStick"/> class.
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/// </summary>
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public new struct Default
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{
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/// <summary>
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/// The default fillcolor for drawing the rising case CandleSticks
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/// (<see cref="JapaneseCandleStick.RisingFill"/> property).
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/// </summary>
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public static Color RisingColor = Color.White;
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/// <summary>
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/// The default fillcolor for drawing the falling case CandleSticks
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/// (<see cref="JapaneseCandleStick.FallingFill"/> property).
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/// </summary>
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public static Color FallingColor = Color.Black;
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/// <summary>
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/// The default color for the border of the rising CandleSticks
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/// (<see cref="JapaneseCandleStick.RisingBorder" /> property).
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/// </summary>
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public static Color RisingBorder = Color.Black;
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/// <summary>
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/// The default color for the border of the falling CandleSticks
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/// (<see cref="JapaneseCandleStick.FallingBorder" /> property).
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/// </summary>
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public static Color FallingBorder = Color.Black;
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}
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#endregion
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#region Properties
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/// <summary>
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/// Gets or sets the <see cref="Fill" /> class that is used to fill the candlestick
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/// "bars" when the <see cref="StockPt.Close" /> value is greater than the
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/// <see cref="StockPt.Open" /> value.
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/// </summary>
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public Fill RisingFill
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{
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get { return _risingFill; }
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set { _risingFill = value; }
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}
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/// <summary>
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/// Gets or sets the <see cref="Fill" /> class that is used to fill the candlestick
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/// "bars" when the <see cref="StockPt.Close" /> value is less than the
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/// <see cref="StockPt.Open" /> value.
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/// </summary>
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public Fill FallingFill
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{
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get { return _fallingFill; }
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set { _fallingFill = value; }
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}
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/// <summary>
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/// The <see cref="Border" /> instance to be used for drawing the border frame of
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/// the candlestick "bars" when the <see cref="StockPt.Close" /> value is greater than the
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/// <see cref="StockPt.Open" /> value.
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/// </summary>
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public Border RisingBorder
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{
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get { return _risingBorder; }
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set { _risingBorder = value; }
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}
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/// <summary>
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/// The <see cref="Border" /> instance to be used for drawing the border frame of
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/// the candlestick "bars" when the <see cref="StockPt.Close" /> value is less than the
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/// <see cref="StockPt.Open" /> value.
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/// </summary>
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public Border FallingBorder
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{
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get { return _fallingBorder; }
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set { _fallingBorder = value; }
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}
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/// <summary>
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/// Gets or sets the <see cref="System.Drawing.Color"/> data for this
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/// <see cref="JapaneseCandleStick"/> when the value of the candlestick is
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/// falling.
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/// </summary>
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/// <remarks>This property only controls the color of
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/// the vertical line when the value is falling. The rising color is controlled
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/// by the <see cref="LineBase.Color" /> property.
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/// </remarks>
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public Color FallingColor
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{
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get { return _fallingColor; }
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set { _fallingColor = value; }
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}
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#endregion
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#region Constructors
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/// <summary>
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/// Default constructor that sets all <see cref="JapaneseCandleStick"/> properties to
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/// default values as defined in the <see cref="Default"/> class.
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/// </summary>
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public JapaneseCandleStick() : base()
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{
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_risingFill = new Fill( Default.RisingColor );
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_fallingFill = new Fill( Default.FallingColor );
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_risingBorder = new Border( Default.RisingBorder, LineBase.Default.Width );
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_fallingBorder = new Border( Default.FallingBorder, LineBase.Default.Width );
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_fallingColor = Default.FallingColor;
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}
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/// <summary>
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/// The Copy Constructor
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/// </summary>
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/// <param name="rhs">The <see cref="JapaneseCandleStick"/> object from which to copy</param>
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public JapaneseCandleStick( JapaneseCandleStick rhs ) : base( rhs )
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{
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_risingFill = rhs._risingFill.Clone();
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_fallingFill = rhs._fallingFill.Clone();
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_risingBorder = rhs._risingBorder.Clone();
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_fallingBorder = rhs._fallingBorder.Clone();
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_fallingColor = rhs._fallingColor;
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}
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/// <summary>
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/// Implement the <see cref="ICloneable" /> interface in a typesafe manner by just
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/// calling the typed version of <see cref="Clone" />
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/// </summary>
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/// <returns>A deep copy of this object</returns>
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object ICloneable.Clone()
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{
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return this.Clone();
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}
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/// <summary>
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/// Typesafe, deep-copy clone method.
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/// </summary>
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/// <returns>A new, independent copy of this class</returns>
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public new JapaneseCandleStick Clone()
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{
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return new JapaneseCandleStick( this );
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}
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#endregion
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#region Serialization
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/// <summary>
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/// Current schema value that defines the version of the serialized file
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/// </summary>
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public const int schema2 = 11;
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/// <summary>
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/// Constructor for deserializing objects
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/// </summary>
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/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data
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/// </param>
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/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data
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/// </param>
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protected JapaneseCandleStick( SerializationInfo info, StreamingContext context ) :
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base( info, context )
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{
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// The schema value is just a file version parameter. You can use it to make future versions
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// backwards compatible as new member variables are added to classes
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int sch = info.GetInt32( "schema2" );
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_risingFill = (Fill)info.GetValue( "risingFill", typeof( Fill ) );
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_fallingFill = (Fill)info.GetValue( "fallingFill", typeof( Fill ) );
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_risingBorder = (Border)info.GetValue( "risingBorder", typeof( Border ) );
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_fallingBorder = (Border)info.GetValue( "fallingBorder", typeof( Border ) );
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if ( schema2 >= 11 )
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_fallingColor = (Color) info.GetValue( "fallingColor", typeof( Color ) );
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}
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/// <summary>
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/// Populates a <see cref="SerializationInfo"/> instance with the data needed to serialize the target object
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/// </summary>
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/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data</param>
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/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data</param>
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[SecurityPermissionAttribute( SecurityAction.Demand, SerializationFormatter = true )]
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public override void GetObjectData( SerializationInfo info, StreamingContext context )
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{
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base.GetObjectData( info, context );
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info.AddValue( "schema2", schema2 );
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info.AddValue( "risingFill", _risingFill );
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info.AddValue( "fallingFill", _fallingFill );
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info.AddValue( "risingBorder", _risingBorder );
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info.AddValue( "fallingBorder", _fallingBorder );
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info.AddValue( "fallingColor", _fallingColor );
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}
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#endregion
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#region Rendering Methods
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/// <summary>
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/// Draw the <see cref="JapaneseCandleStick"/> to the specified <see cref="Graphics"/>
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/// device at the specified location.
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/// </summary>
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/// <param name="g">
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/// A graphic device object to be drawn into. This is normally e.Graphics from the
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/// PaintEventArgs argument to the Paint() method.
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/// </param>
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/// <param name="pane">
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/// A reference to the <see cref="GraphPane"/> object that is the parent or
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/// owner of this object.
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/// </param>
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/// <param name="isXBase">boolean value that indicates if the "base" axis for this
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/// <see cref="JapaneseCandleStick"/> is the X axis. True for an <see cref="XAxis"/> base,
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/// false for a <see cref="YAxis"/> or <see cref="Y2Axis"/> base.</param>
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/// <param name="pixBase">The independent axis position of the center of the candlestick in
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/// pixel units</param>
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/// <param name="pixHigh">The high value position of the candlestick in
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/// pixel units</param>
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/// <param name="pixLow">The low value position of the candlestick in
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/// pixel units</param>
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/// <param name="pixOpen">The opening value position of the candlestick in
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/// pixel units</param>
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/// <param name="pixClose">The closing value position of the candlestick in
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/// pixel units</param>
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/// <param name="halfSize">The scaled width of one-half of a bar, in pixels</param>
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/// <param name="scaleFactor">
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/// The scaling factor for the features of the graph based on the <see cref="PaneBase.BaseDimension"/>. This
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/// scaling factor is calculated by the <see cref="PaneBase.CalcScaleFactor"/> method. The scale factor
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/// represents a linear multiple to be applied to font sizes, symbol sizes, etc.</param>
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/// <param name="pen">A pen with the <see cref="Color"/> attribute for this
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/// <see cref="JapaneseCandleStick"/></param>
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/// <param name="fill">
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/// The <see cref="Fill" /> instance to be used for filling this
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/// <see cref="JapaneseCandleStick" />
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/// </param>
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/// <param name="border">The <see cref="Border" /> instance to be used for drawing the
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/// border around the <see cref="JapaneseCandleStick" /> filled box</param>
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/// <param name="pt">The <see cref="PointPair" /> to be used for determining the
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/// <see cref="Fill" />, just in case it's a <see cref="FillType.GradientByX" />,
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/// <see cref="FillType.GradientByY" />, or
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/// <see cref="FillType.GradientByZ" /> <see cref="FillType" /></param>
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public void Draw( Graphics g, GraphPane pane, bool isXBase,
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float pixBase, float pixHigh, float pixLow,
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float pixOpen, float pixClose, float halfSize,
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float scaleFactor, Pen pen, Fill fill, Border border, PointPair pt )
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{
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//float halfSize = (int) ( _size * scaleFactor / 2.0f + 0.5f );
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if ( pixBase != PointPair.Missing && Math.Abs( pixLow ) < 1000000 &&
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Math.Abs( pixHigh ) < 1000000)
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{
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RectangleF rect;
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if ( isXBase )
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{
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rect = new RectangleF( pixBase - halfSize, Math.Min( pixOpen, pixClose ),
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halfSize * 2.0f, Math.Abs( pixOpen - pixClose ) );
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g.DrawLine( pen, pixBase, pixHigh, pixBase, pixLow );
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}
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else
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{
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rect = new RectangleF( Math.Min( pixOpen, pixClose ), pixBase - halfSize,
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Math.Abs( pixOpen - pixClose ), halfSize * 2.0f );
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g.DrawLine( pen, pixHigh, pixBase, pixLow, pixBase );
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}
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if ( _isOpenCloseVisible && Math.Abs( pixOpen ) < 1000000 &&
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Math.Abs( pixClose ) < 1000000 )
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{
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if ( rect.Width == 0 )
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rect.Width = 1;
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if ( rect.Height == 0 )
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rect.Height = 1;
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fill.Draw( g, rect, pt );
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border.Draw( g, pane, scaleFactor, rect );
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}
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}
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}
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/// <summary>
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/// Draw all the <see cref="JapaneseCandleStick"/>'s to the specified <see cref="Graphics"/>
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/// device as a candlestick at each defined point.
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/// </summary>
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/// <param name="g">
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/// A graphic device object to be drawn into. This is normally e.Graphics from the
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/// PaintEventArgs argument to the Paint() method.
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/// </param>
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/// <param name="pane">
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/// A reference to the <see cref="GraphPane"/> object that is the parent or
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/// owner of this object.
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/// </param>
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/// <param name="curve">A <see cref="JapaneseCandleStickItem"/> object representing the
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/// <see cref="JapaneseCandleStick"/>'s to be drawn.</param>
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/// <param name="baseAxis">The <see cref="Axis"/> class instance that defines the base (independent)
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/// axis for the <see cref="JapaneseCandleStick"/></param>
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/// <param name="valueAxis">The <see cref="Axis"/> class instance that defines the value (dependent)
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/// axis for the <see cref="JapaneseCandleStick"/></param>
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/// <param name="scaleFactor">
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/// The scaling factor to be used for rendering objects. This is calculated and
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/// passed down by the parent <see cref="GraphPane"/> object using the
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/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
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/// font sizes, etc. according to the actual size of the graph.
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/// </param>
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public void Draw( Graphics g, GraphPane pane, JapaneseCandleStickItem curve,
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Axis baseAxis, Axis valueAxis, float scaleFactor )
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{
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//ValueHandler valueHandler = new ValueHandler( pane, false );
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float pixBase, pixHigh, pixLow, pixOpen, pixClose;
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if ( curve.Points != null )
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{
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//float halfSize = _size * scaleFactor;
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float halfSize = GetBarWidth( pane, baseAxis, scaleFactor );
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Color tColor = _color;
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Color tFallingColor = _fallingColor;
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float tPenWidth = _width;
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Fill tRisingFill = _risingFill;
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Fill tFallingFill = _fallingFill;
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Border tRisingBorder = _risingBorder;
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Border tFallingBorder = _fallingBorder;
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if ( curve.IsSelected )
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{
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tColor = Selection.Border.Color;
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tFallingColor = Selection.Border.Color;
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tPenWidth = Selection.Border.Width;
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tRisingFill = Selection.Fill;
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tFallingFill = Selection.Fill;
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tRisingBorder = Selection.Border;
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tFallingBorder = Selection.Border;
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}
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using ( Pen risingPen = new Pen( tColor, tPenWidth ) )
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using ( Pen fallingPen = new Pen( tFallingColor, tPenWidth ) )
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{
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// Loop over each defined point
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for ( int i = 0; i < curve.Points.Count; i++ )
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{
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PointPair pt = curve.Points[i];
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double date = pt.X;
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double high = pt.Y;
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double low = pt.Z;
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double open = PointPair.Missing;
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double close = PointPair.Missing;
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if ( pt is StockPt )
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{
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open = ( pt as StockPt ).Open;
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close = ( pt as StockPt ).Close;
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}
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// Any value set to double max is invalid and should be skipped
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// This is used for calculated values that are out of range, divide
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// by zero, etc.
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// Also, any value <= zero on a log scale is invalid
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if ( !curve.Points[i].IsInvalid3D &&
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( date > 0 || !baseAxis._scale.IsLog ) &&
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( ( high > 0 && low > 0 ) || !valueAxis._scale.IsLog ) )
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{
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pixBase = (int) ( baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date ) + 0.5 );
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//pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date );
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pixHigh = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, high );
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pixLow = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, low );
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if ( PointPair.IsValueInvalid( open ) )
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pixOpen = Single.MaxValue;
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else
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pixOpen = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, open );
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if ( PointPair.IsValueInvalid( close ) )
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pixClose = Single.MaxValue;
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else
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pixClose = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, close );
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if ( !curve.IsSelected && this._gradientFill.IsGradientValueType )
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{
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using ( Pen tPen = GetPen( pane, scaleFactor, pt ) )
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Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis,
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pixBase, pixHigh, pixLow, pixOpen,
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pixClose, halfSize, scaleFactor,
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( tPen ),
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( close > open ? tRisingFill : tFallingFill ),
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( close > open ? tRisingBorder : tFallingBorder ), pt );
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}
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else
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Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis,
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pixBase, pixHigh, pixLow, pixOpen,
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pixClose, halfSize, scaleFactor,
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( close > open ? risingPen : fallingPen ),
|
|
( close > open ? tRisingFill : tFallingFill ),
|
|
( close > open ? tRisingBorder : tFallingBorder ), pt );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|
|
}
|