2022-08-23 21:12:59 +08:00

257 lines
8.6 KiB
C#

//============================================================================
//ZedGraph Class Library - A Flexible Line Graph/Bar Graph Library in C#
//Copyright ?2006 John Champion
//
//This library is free software; you can redistribute it and/or
//modify it under the terms of the GNU Lesser General Public
//License as published by the Free Software Foundation; either
//version 2.1 of the License, or (at your option) any later version.
//
//This library is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//Lesser General Public License for more details.
//
//You should have received a copy of the GNU Lesser General Public
//License along with this library; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//=============================================================================
using System;
using System.Drawing;
using System.Text;
using System.Runtime.Serialization;
using System.Security.Permissions;
namespace DrawGraph
{
/// <summary>
/// Class that handles the properties of the charting area (where the curves are
/// actually drawn), which is bounded by the <see cref="XAxis" />, <see cref="YAxis"/>,
/// and <see cref="Y2Axis" />.
/// </summary>
///
/// <author> John Champion </author>
/// <version> $Revision: 3.1 $ $Date: 2006/06/24 20:26:44 $ </version>
[Serializable]
public class Chart : ICloneable, ISerializable
{
/// <summary>
/// The rectangle that contains the area bounded by the axes, in pixel units
/// </summary>
internal RectangleF _rect;
/// <summary>
/// Private field that stores the <see cref="ZedGraph.Fill"/> data for this
/// <see cref="Chart"/>. Use the public property <see cref="Fill"/> to
/// access this value.
/// </summary>
internal Fill _fill;
/// <summary>
/// Private field that stores the <see cref="ZedGraph.Border"/> data for this
/// <see cref="Chart"/>. Use the public property <see cref="Border"/> to
/// access this value.
/// </summary>
internal Border _border;
/// <summary>Private field that determines if the <see cref="Rect"/> will be
/// sized automatically. Use the public property <see cref="IsRectAuto"/> to access
/// this value. </summary>
internal bool _isRectAuto;
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
public Chart()
{
_isRectAuto = true;
_border = new Border( Default.IsBorderVisible, Default.BorderColor, Default.BorderPenWidth );
_fill = new Fill( Default.FillColor, Default.FillBrush, Default.FillType );
}
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="rhs">The source <see cref="Chart" /> to be copied.</param>
public Chart( Chart rhs )
{
_border = rhs._border.Clone();
_fill = rhs._fill.Clone();
_rect = rhs._rect;
_isRectAuto = rhs._isRectAuto;
}
/// <summary>
/// Implement the <see cref="ICloneable" /> interface in a typesafe manner by just
/// calling the typed version of <see cref="Clone" />
/// </summary>
/// <returns>A deep copy of this object</returns>
object ICloneable.Clone()
{
return this.Clone();
}
/// <summary>
/// Typesafe, deep-copy clone method.
/// </summary>
/// <returns>A new, independent copy of this class</returns>
public Chart Clone()
{
return new Chart( this );
}
#endregion
#region Properties
/// <summary>
/// Gets or sets the rectangle that contains the area bounded by the axes
/// (<see cref="XAxis"/>, <see cref="YAxis"/>, and <see cref="Y2Axis"/>).
/// If you set this value manually, then the <see cref="IsRectAuto"/>
/// value will automatically be set to false.
/// </summary>
/// <value>The rectangle units are in screen pixels</value>
public RectangleF Rect
{
get { return _rect; }
set { _rect = value; _isRectAuto = false; }
}
/// <summary>
/// Gets or sets the <see cref="ZedGraph.Fill"/> data for this
/// <see cref="Chart"/>.
/// </summary>
public Fill Fill
{
get { return _fill; }
set { _fill = value; }
}
/// <summary>
/// Gets or sets the <see cref="ZedGraph.Border"/> class for drawing the border
/// border around the <see cref="Chart"/>
/// </summary>
/// <seealso cref="Default.BorderColor"/>
/// <seealso cref="Default.BorderPenWidth"/>
public Border Border
{
get { return _border; }
set { _border = value; }
}
/// <summary>
/// Gets or sets a boolean value that determines whether or not the
/// <see cref="Rect"/> will be calculated automatically (almost always true).
/// </summary>
/// <remarks>
/// If you have a need to set the ChartRect manually, such as you have multiple graphs
/// on a page and you want to line up the edges perfectly, you can set this value
/// to false. If you set this value to false, you must also manually set
/// the <see cref="Rect"/> property.
/// You can easily determine the ChartRect that ZedGraph would have
/// calculated by calling the <see cref="GraphPane.CalcChartRect(Graphics)"/> method, which returns
/// a chart rect sized for the current data range, scale sizes, etc.
/// </remarks>
/// <value>true to have ZedGraph calculate the ChartRect, false to do it yourself</value>
public bool IsRectAuto
{
get { return _isRectAuto; }
set { _isRectAuto = value; }
}
#endregion
#region Serialization
/// <summary>
/// Current schema value that defines the version of the serialized file
/// </summary>
public const int schema = 10;
/// <summary>
/// Constructor for deserializing objects
/// </summary>
/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data
/// </param>
/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data
/// </param>
protected Chart( SerializationInfo info, StreamingContext context )
{
// The schema value is just a file version parameter. You can use it to make future versions
// backwards compatible as new member variables are added to classes
int sch = info.GetInt32( "schema" );
_rect = (RectangleF)info.GetValue( "rect", typeof( RectangleF ) );
_fill = (Fill)info.GetValue( "fill", typeof( Fill ) );
_border = (Border)info.GetValue( "border", typeof( Border ) );
_isRectAuto = info.GetBoolean( "isRectAuto" );
}
/// <summary>
/// Populates a <see cref="SerializationInfo"/> instance with the data needed to serialize the target object
/// </summary>
/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data</param>
/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data</param>
[SecurityPermissionAttribute( SecurityAction.Demand, SerializationFormatter = true )]
public virtual void GetObjectData( SerializationInfo info, StreamingContext context )
{
info.AddValue( "schema", schema );
info.AddValue( "rect", _rect );
info.AddValue( "fill", _fill );
info.AddValue( "border", _border );
info.AddValue( "isRectAuto", _isRectAuto );
}
#endregion
#region Defaults
/// <summary>
/// A simple struct that defines the
/// default property values for the <see cref="Chart"/> class.
/// </summary>
public struct Default
{
/// <summary>
/// The default color for the <see cref="Chart"/> border.
/// (<see cref="Chart.Border"/> property).
/// </summary>
public static Color BorderColor = Color.Black;
/// <summary>
/// The default color for the <see cref="Chart"/> background.
/// (<see cref="Chart.Fill"/> property).
/// </summary>
public static Color FillColor = Color.White;
/// <summary>
/// The default brush for the <see cref="GraphPane.Chart"/> background.
/// (<see cref="ZedGraph.Fill.Brush"/> property of <see cref="Chart.Fill"/>).
/// </summary>
public static Brush FillBrush = null;
/// <summary>
/// The default <see cref="FillType"/> for the <see cref="GraphPane.Chart"/> background.
/// (<see cref="ZedGraph.Fill.Type"/> property of <see cref="Chart.Fill"/>).
/// </summary>
public static FillType FillType = FillType.Brush;
/// <summary>
/// The default pen width for drawing the
/// <see cref="GraphPane.Chart"/> border
/// (<see cref="Chart.Border"/> property).
/// Units are in points (1/72 inch).
/// </summary>
public static float BorderPenWidth = 1F;
/// <summary>
/// The default display mode for the <see cref="Chart"/> border
/// (<see cref="Chart.Border"/> property). true
/// to show the border border, false to omit the border
/// </summary>
public static bool IsBorderVisible = true;
}
#endregion
}
}