251 lines
8.4 KiB
C#
251 lines
8.4 KiB
C#
//============================================================================
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//ZedGraph Class Library - A Flexible Line Graph/Bar Graph Library in C#
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//Copyright ?2004 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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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.Runtime.Serialization;
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using System.Security.Permissions;
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namespace DrawGraph
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{
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/// <summary>
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/// A class that encapsulates Border (frame) properties for an object. The <see cref="Border"/> class
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/// is used in a variety of ZedGraph objects to handle the drawing of the Border around the object.
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/// </summary>
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///
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/// <author> John Champion </author>
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/// <version> $Revision: 3.18 $ $Date: 2007/03/17 18:43:44 $ </version>
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[Serializable]
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public class Border : LineBase, ISerializable, ICloneable
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{
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#region Fields
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/// <summary>
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/// Private field that stores the amount of inflation to be done on the rectangle
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/// before rendering. This allows the border to be inset or outset relative to
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/// the actual rectangle area. Use the public property <see cref="InflateFactor"/>
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/// to access this value.
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/// </summary>
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private float _inflateFactor;
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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="Fill"/> class.
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/// </summary>
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new public struct Default
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{
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/// <summary>
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/// The default value for <see cref="Border.InflateFactor"/>, in units of points (1/72 inch).
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/// </summary>
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/// <seealso cref="Border.InflateFactor"/>
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public static float InflateFactor = 0.0F;
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}
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#endregion
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#region Constructors
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/// <summary>
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/// The default constructor. Initialized to default values.
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/// </summary>
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public Border() : base()
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{
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_inflateFactor = Default.InflateFactor;
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}
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/// <summary>
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/// Constructor that specifies the visibility, color and penWidth of the Border.
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/// </summary>
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/// <param name="isVisible">Determines whether or not the Border will be drawn.</param>
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/// <param name="color">The color of the Border</param>
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/// <param name="width">The width, in points (1/72 inch), for the Border.</param>
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public Border( bool isVisible, Color color, float width ) :
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base( color )
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{
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_width = width;
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_isVisible = isVisible;
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}
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/// <summary>
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/// Constructor that specifies the color and penWidth of the Border.
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/// </summary>
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/// <param name="color">The color of the Border</param>
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/// <param name="width">The width, in points (1/72 inch), for the Border.</param>
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public Border( Color color, float width ) :
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this( !color.IsEmpty, color, width )
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{
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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 Border object from which to copy</param>
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public Border( Border rhs ) : base( rhs )
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{
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_inflateFactor = rhs._inflateFactor;
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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 Border Clone()
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{
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return new Border( 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 schema = 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 Border( 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( "schema" );
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_inflateFactor = info.GetSingle( "inflateFactor" );
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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( "schema", schema );
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info.AddValue( "inflateFactor", _inflateFactor );
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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 amount of inflation to be done on the rectangle
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/// before rendering.
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/// </summary>
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/// <remarks>This allows the border to be inset or outset relative to
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/// the actual rectangle area.
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/// </remarks>
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public float InflateFactor
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{
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get { return _inflateFactor; }
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set { _inflateFactor = value; }
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}
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#endregion
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#region Methods
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/*
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/// <summary>
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/// Create a new <see cref="Pen"/> object from the properties of this
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/// <see cref="Border"/> object.
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/// </summary>
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/// <param name="isPenWidthScaled">
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/// Set to true to have the <see cref="Border"/> pen width scaled with the
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/// scaleFactor.
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/// </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.
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/// </param>
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/// <returns>A <see cref="Pen"/> object with the proper color and pen width.</returns>
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public Pen MakePen( bool isPenWidthScaled, float scaleFactor )
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{
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float scaledPenWidth = _width;
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if ( isPenWidthScaled )
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scaledPenWidth = (float)(_width * scaleFactor);
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return new Pen( _color, scaledPenWidth );
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}
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*/
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/// <summary>
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/// Draw the specified Border (<see cref="RectangleF"/>) using the properties of
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/// this <see cref="Border"/> object.
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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="PaneBase"/> 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="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.
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/// </param>
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/// <param name="rect">A <see cref="RectangleF"/> struct to be drawn.</param>
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public void Draw( Graphics g, PaneBase pane, float scaleFactor, RectangleF rect )
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{
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// Need to use the RectangleF props since rounding it can cause the axisFrame to
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// not line up properly with the last tic mark
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if ( _isVisible )
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{
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RectangleF tRect = rect;
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float scaledInflate = (float) ( _inflateFactor * scaleFactor );
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tRect.Inflate( scaledInflate, scaledInflate );
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using ( Pen pen = GetPen( pane, scaleFactor) )
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g.DrawRectangle( pen, tRect.X, tRect.Y, tRect.Width, tRect.Height );
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}
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}
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#endregion
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}
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}
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