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536 lines
14 KiB
C#
536 lines
14 KiB
C#
//-------------------------------------------------------------
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// <copyright company=’Microsoft Corporation’>
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// Copyright © Microsoft Corporation. All Rights Reserved.
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// </copyright>
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//-------------------------------------------------------------
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// @owner=alexgor, deliant
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//=================================================================
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// File: ElementPosition.cs
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//
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// Namespace: System.Web.UI.WebControls[Windows.Forms].Charting
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//
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// Classes: ElementPosition
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//
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// Purpose: Class is used to store relative position of the chart
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// elements like Legend, Title and others. It uses
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// relative coordinate system where top left corner is
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// 0,0 and bottom right is 100,100.
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//
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// If Auto property is set to true, all position properties
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// (X,Y,Width and Height) are ignored and they automatically
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// calculated during chart rendering.
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//
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// Note that setting any of the position properties will
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// automatically set Auto property to false.
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//
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// Reviewed: AG - August 7, 2002
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// AG - Microsoft 5, 2007
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//
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//===================================================================
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#region Used Namespaces
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using System;
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using System.Collections;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Data;
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using System.Drawing;
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using System.Drawing.Design;
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using System.Drawing.Drawing2D;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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#if Microsoft_CONTROL
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using System.Windows.Forms.DataVisualization.Charting;
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using System.Windows.Forms.DataVisualization.Charting.Data;
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using System.Windows.Forms.DataVisualization.Charting.ChartTypes;
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using System.Windows.Forms.DataVisualization.Charting.Utilities;
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using System.Windows.Forms.DataVisualization.Charting.Borders3D;
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#else
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.DataVisualization.Charting;
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using System.Web.UI.DataVisualization.Charting.Data;
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#endif
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#endregion
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#if Microsoft_CONTROL
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namespace System.Windows.Forms.DataVisualization.Charting
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#else
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namespace System.Web.UI.DataVisualization.Charting
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#endif
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{
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/// <summary>
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/// ElementPosition is the base class for many chart visual
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/// elements like Legend, Title and ChartArea. It provides
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/// the position of the chart element in relative coordinates,
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/// from (0,0) to (100,100).
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/// </summary>
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[
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SRDescription("DescriptionAttributeElementPosition_ElementPosition"),
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DefaultProperty("Data"),
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]
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#if ASPPERM_35
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[AspNetHostingPermission(System.Security.Permissions.SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission(System.Security.Permissions.SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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#endif
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public class ElementPosition : ChartElement
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{
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#region Fields
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// Private data members, which store properties values
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private float _x = 0;
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private float _y = 0;
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private float _width = 0;
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private float _height = 0;
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internal bool _auto = true;
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// Indicates the auto position of all areas must be reset
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internal bool resetAreaAutoPosition = false;
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#endregion
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#region Constructors
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/// <summary>
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/// ElementPosition default constructor
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/// </summary>
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public ElementPosition()
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{
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}
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/// <summary>
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/// ElementPosition default constructor
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/// </summary>
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internal ElementPosition(IChartElement parent)
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: base(parent)
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{
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}
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/// <summary>
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/// ElementPosition constructor.
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/// </summary>
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/// <param name="x">X position.</param>
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/// <param name="y">Y position.</param>
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/// <param name="width">Width.</param>
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/// <param name="height">Height.</param>
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[SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
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Justification = "X and Y are cartesian coordinates and well understood")]
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public ElementPosition(float x, float y, float width, float height)
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{
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this._auto = false;
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this._x = x;
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this._y = y;
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this._width = width;
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this._height = height;
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}
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#endregion
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#region Methods
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/// <summary>
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/// Asks the user at design-time if he wants to change the Auto position
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/// of all areas at the same time.
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/// </summary>
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/// <param name="autoValue">Value to be set for the Auto property.</param>
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private void ResetAllAreasAutoPosition(bool autoValue)
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{
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if(resetAreaAutoPosition)
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{
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// Proceed only if at design time
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if(Chart != null && Chart.IsDesignMode() && !Chart.serializing && Chart.Site != null)
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{
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// Check if there is more than one area and Auto position set to the same value
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if(Chart.ChartAreas.Count > 1)
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{
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bool firstAutoValue = Chart.ChartAreas[0].Position.Auto;
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bool sameAutoValue = true;
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foreach(ChartArea area in Chart.ChartAreas)
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{
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if(area.Position.Auto != firstAutoValue)
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{
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sameAutoValue = false;
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break;
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}
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}
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// Proceed only all Auto values are the same
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if(sameAutoValue)
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{
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string message = SR.MessageChangingChartAreaPositionProperty;
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if (autoValue)
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{
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message += SR.MessageChangingChartAreaPositionConfirmAutomatic;
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}
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else
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{
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message += SR.MessageChangingChartAreaPositionConfirmCustom;
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}
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IDesignerMessageBoxDialog confirm = Chart.Site.GetService(typeof(IDesignerMessageBoxDialog)) as IDesignerMessageBoxDialog;
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if (confirm != null && confirm.ShowQuestion(message))
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{
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foreach (ChartArea area in Chart.ChartAreas)
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{
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if (autoValue)
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{
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this.SetPositionNoAuto(0f, 0f, 0f, 0f);
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}
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area.Position._auto = autoValue;
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}
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}
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}
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}
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}
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}
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}
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/// <summary>
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/// Convert element position into RectangleF
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/// </summary>
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/// <returns>RectangleF structure.</returns>
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public RectangleF ToRectangleF()
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{
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return new RectangleF(_x, _y, _width, _height);
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}
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/// <summary>
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/// Initializes ElementPosition from RectangleF
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/// </summary>
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/// <param name="rect">RectangleF structure.</param>
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public void FromRectangleF(RectangleF rect)
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{
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if (rect == null)
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throw new ArgumentNullException("rect");
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this._x = rect.X;
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this._y = rect.Y;
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this._width = rect.Width;
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this._height = rect.Height;
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this._auto = false;
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}
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/// <summary>
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/// Gets the size of the ElementPosition object.
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/// </summary>
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/// <returns>The size of the ElementPosition object.</returns>
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[Browsable(false)]
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[Utilities.SerializationVisibility(Utilities.SerializationVisibility.Hidden)]
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public SizeF Size
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{
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get { return new SizeF(this._width, this._height); }
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}
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/// <summary>
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/// Gets the bottom position in relative coordinates.
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/// </summary>
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/// <returns>Bottom position.</returns>
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[Browsable(false)]
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[Utilities.SerializationVisibility(Utilities.SerializationVisibility.Hidden)]
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public float Bottom
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{
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get { return this._y + this._height; }
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}
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/// <summary>
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/// Gets the right position in relative coordinates.
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/// </summary>
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/// <returns>Right position.</returns>
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[Browsable(false)]
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[Utilities.SerializationVisibility(Utilities.SerializationVisibility.Hidden)]
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public float Right
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{
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get{ return this._x + this._width; }
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}
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/// <summary>
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/// Determines whether the specified Object is equal to the current Object.
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/// </summary>
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/// <param name="obj">The Object to compare with the current Object.</param>
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/// <returns>true if the specified Object is equal to the current Object; otherwise, false.</returns>
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internal override bool EqualsInternal(object obj)
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{
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ElementPosition pos = obj as ElementPosition;
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if(pos != null)
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{
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if(this._auto == true && this._auto == pos._auto)
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{
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return true;
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}
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else if(this._x == pos._x && this._y == pos._y &&
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this._width == pos._width && this._height == pos._height)
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{
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// Returns a string that represents the element position data.
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/// </summary>
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/// <returns>Element position data as a string.</returns>
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internal override string ToStringInternal()
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{
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string posString = Constants.AutoValue;
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if(!this._auto)
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{
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posString =
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this._x.ToString(System.Globalization.CultureInfo.CurrentCulture)+", "+
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this._y.ToString(System.Globalization.CultureInfo.CurrentCulture)+", "+
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this._width.ToString(System.Globalization.CultureInfo.CurrentCulture)+", "+
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this._height.ToString(System.Globalization.CultureInfo.CurrentCulture);
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}
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return posString;
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}
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/// <summary>
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/// Set the element position without modifying the "Auto" property
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/// </summary>
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/// <param name="x">X position.</param>
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/// <param name="y">Y position.</param>
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/// <param name="width">Width.</param>
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/// <param name="height">Height.</param>
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internal void SetPositionNoAuto(float x, float y, float width, float height)
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{
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bool oldValue = this._auto;
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this._x = x;
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this._y = y;
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this._width = width;
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this._height = height;
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this._auto = oldValue;
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}
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#endregion
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#region Element Position properties
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/// <summary>
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/// X position of element.
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/// </summary>
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[
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SRCategory("CategoryAttributeMisc"),
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Bindable(true),
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DefaultValue(0.0F),
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SRDescription("DescriptionAttributeElementPosition_X"),
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NotifyParentPropertyAttribute(true),
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RefreshPropertiesAttribute(RefreshProperties.All),
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#if !Microsoft_CONTROL
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PersistenceMode(PersistenceMode.Attribute)
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#endif
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]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "X")]
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public float X
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{
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get
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{
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return _x;
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}
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set
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{
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if(value < 0.0 || value > 100.0)
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{
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throw(new ArgumentOutOfRangeException("value", SR.ExceptionElementPositionArgumentOutOfRange));
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}
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_x = value;
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Auto = false;
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// Adjust width
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if( (_x + Width) > 100)
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{
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Width = 100 - _x;
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}
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this.Invalidate();
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}
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}
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/// <summary>
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/// Y position of element.
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/// </summary>
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[
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SRCategory("CategoryAttributeMisc"),
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Bindable(true),
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DefaultValue(0.0F),
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SRDescription("DescriptionAttributeElementPosition_Y"),
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NotifyParentPropertyAttribute(true),
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RefreshPropertiesAttribute(RefreshProperties.All),
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#if !Microsoft_CONTROL
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PersistenceMode(PersistenceMode.Attribute)
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#endif
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]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Y")]
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public float Y
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{
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get
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{
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return _y;
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}
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set
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{
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if(value < 0.0 || value > 100.0)
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{
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throw(new ArgumentOutOfRangeException("value", SR.ExceptionElementPositionArgumentOutOfRange));
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}
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_y = value;
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Auto = false;
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// Adjust heigth
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if( (_y + Height) > 100)
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{
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Height = 100 - _y;
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}
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this.Invalidate();
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}
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}
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/// <summary>
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/// Width of element.
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/// </summary>
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[
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SRCategory("CategoryAttributeMisc"),
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Bindable(true),
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DefaultValue(0.0F),
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SRDescription("DescriptionAttributeElementPosition_Width"),
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NotifyParentPropertyAttribute(true),
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RefreshPropertiesAttribute(RefreshProperties.All),
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#if !Microsoft_CONTROL
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PersistenceMode(PersistenceMode.Attribute)
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#endif
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]
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public float Width
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{
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get
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{
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return _width;
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}
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set
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{
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if(value < 0.0 || value > 100.0)
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{
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throw(new ArgumentOutOfRangeException("value", SR.ExceptionElementPositionArgumentOutOfRange));
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}
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_width = value;
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Auto = false;
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// Adjust x
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if( (_x + Width) > 100)
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{
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_x = 100 - Width;
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}
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this.Invalidate();
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}
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}
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/// <summary>
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/// Height of element.
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/// </summary>
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[
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SRCategory("CategoryAttributeMisc"),
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Bindable(true),
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DefaultValue(0.0F),
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SRDescription("DescriptionAttributeElementPosition_Height"),
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NotifyParentPropertyAttribute(true),
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RefreshPropertiesAttribute(RefreshProperties.All),
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#if !Microsoft_CONTROL
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PersistenceMode(PersistenceMode.Attribute)
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#endif
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]
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public float Height
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{
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get
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{
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return _height;
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}
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set
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{
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if(value < 0.0 || value > 100.0)
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{
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throw(new ArgumentOutOfRangeException("value", SR.ExceptionElementPositionArgumentOutOfRange));
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}
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_height = value;
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Auto = false;
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// Adjust y
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if( (_y + Height) > 100)
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{
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_y = 100 - Height;
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}
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this.Invalidate();
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}
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}
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/// <summary>
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/// Gets or sets a flag which indicates whether positioning is on.
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/// </summary>
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[
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SRCategory("CategoryAttributeMisc"),
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Bindable(true),
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DefaultValue(true),
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SRDescription("DescriptionAttributeElementPosition_Auto"),
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NotifyParentPropertyAttribute(true),
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RefreshPropertiesAttribute(RefreshProperties.All),
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#if !Microsoft_CONTROL
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PersistenceMode(PersistenceMode.Attribute)
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#endif
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]
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public bool Auto
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{
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get
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{
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return _auto;
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}
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set
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{
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if(value != _auto)
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{
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ResetAllAreasAutoPosition(value);
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if(value)
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{
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this._x = 0;
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this._y = 0;
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this._width = 0;
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this._height = 0;
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}
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_auto = value;
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this.Invalidate();
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}
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}
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}
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#endregion
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}
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/// <summary>
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/// Used for invoking windows forms MesageBox dialog.
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/// </summary>
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internal interface IDesignerMessageBoxDialog
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{
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/// <summary>
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/// Shows Yes/No MessageBox.
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/// </summary>
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/// <param name="message">The message.</param>
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/// <returns>
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/// true if user confirms with Yes
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/// </returns>
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bool ShowQuestion(string message);
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}
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}
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