PieChartControl.cs
Description du code
PieChartControl.cs est un fichier du projet BrolDev.Ce fichier est situé dans /var/www/bin/sniplets/bibliobrol/broldev/src/.
Projet BrolDev : Librairie de composants réutilisables pour les applications BrolDev en CSharp.
Code source ou contenu du fichier
Code c# (PieChartControl.cs) (390 lignes)
using System; using System.Diagnostics; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; namespace be.gaudry.model.drawing.chart { /// <summary> /// Summary description for PieChartControl. /// </summary> public class PieChartControl : System.Windows.Forms.Panel { /// <summary> /// Initializes the <c>PieChartControl</c>. /// </summary> public PieChartControl() : base() { this.SetStyle(ControlStyles.UserPaint, true); this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); this.SetStyle(ControlStyles.DoubleBuffer, true); this.SetStyle(ControlStyles.ResizeRedraw, true); } /// <summary> /// Sets the left margin for the chart. /// </summary> public float LeftMargin { set { Debug.Assert(value >= 0); m_leftMargin = value; Invalidate(); } } /// <summary> /// Sets the right margin for the chart. /// </summary> public float RightMargin { set { Debug.Assert(value >= 0); m_rightMargin = value; Invalidate(); } } /// <summary> /// Sets the top margin for the chart. /// </summary> public float TopMargin { set { Debug.Assert(value >= 0); m_topMargin = value; Invalidate(); } } /// <summary> /// Sets the bottom margin for the chart. /// </summary> public float BottomMargin { set { Debug.Assert(value >= 0); m_bottomMargin = value; Invalidate(); } } /// <summary> /// Sets the indicator if chart should fit the bounding rectangle /// exactly. /// </summary> public bool FitChart { set { m_fitChart = value; Invalidate(); } } /// <summary> /// Sets values to be represented by the chart. /// </summary> public double[] Values { set { m_values = value; Invalidate(); } get { return m_values; } } /// <summary> /// Sets colors to be used for rendering pie slices. /// </summary> public Color[] Colors { set { m_colors = value; Invalidate(); } } /// <summary> /// Flag indicating that the selected part of the pie move on mouse on /// </summary> public bool DisplaceOnMouseOn { get { return this.displaceOnMouseOn; } set { this.displaceOnMouseOn = value; } } /// <summary> /// Sets values for slice displacements. /// </summary> public float[] SliceRelativeDisplacements { set { m_relativeSliceDisplacements = value; //brol modif m_relativeSliceDisplacements.CopyTo(tempSliceDisplacements,0); Invalidate(); } } /// <summary> /// Gets or sets tooltip texts. /// </summary> public string[] ToolTips { set { m_toolTipTexts = value; } get { return m_toolTipTexts; } } /// <summary> /// Sets texts appearing by each pie slice. /// </summary> public string[] Texts { set { m_texts = value; } get { return m_texts; } } /// <summary> /// Sets pie slice reative height. /// </summary> public float SliceRelativeHeight { set { m_sliceRelativeHeight = value; Invalidate(); } } /// <summary> /// Sets the shadow style. /// </summary> public ShadowStyle ShadowStyle { set { m_shadowStyle = value; Invalidate(); } } /// <summary> /// Sets the edge color type. /// </summary> public EdgeColorType EdgeColorType { set { m_edgeColorType = value; Invalidate(); } } /// <summary> /// Sets the edge lines width. /// </summary> public float EdgeLineWidth { set { m_edgeLineWidth = value; Invalidate(); } } /// <summary> /// Sets the initial angle from which pies are drawn. /// </summary> public float InitialAngle { set { m_initialAngle = value; Invalidate(); } } /// <summary> /// Increase relativeSliceDisplacement for an item /// </summary> /// <param name="partIndex">(int) index of the item</param> /// <param name="outer">(bool) true to increase, false to decrease</param> /// <returns>(bool) true if displacement done</returns> public bool displacePart(int partIndex, bool outer) { if (partIndex >= m_relativeSliceDisplacements.Length) return false; if (outer) if ((m_relativeSliceDisplacements[partIndex] + 0.5F) > 1F) m_relativeSliceDisplacements[partIndex] = 1F; else m_relativeSliceDisplacements[partIndex] = m_relativeSliceDisplacements[partIndex] + 0.5F; else if ((m_relativeSliceDisplacements[partIndex] - 0.5F) <=0F) m_relativeSliceDisplacements[partIndex] = 0F; else m_relativeSliceDisplacements[partIndex] = m_relativeSliceDisplacements[partIndex] - 0.5F; //m_relativeSliceDisplacements[partIndex] = (outer) ? m_relativeSliceDisplacements[partIndex] + 0.5F : ((m_relativeSliceDisplacements[partIndex] - 0.5F)>0.1F)?m_relativeSliceDisplacements[partIndex] - 0.5F:0.1F; Invalidate(); return true; } /// <summary> /// Handles <c>OnPaint</c> event. /// </summary> /// <param name="args"> /// <c>PaintEventArgs</c> object. /// </param> protected override void OnPaint(PaintEventArgs args) { base.OnPaint(args); if (HasAnyValue) { DoDraw(args.Graphics); } } /// <summary> /// Sets values for the chart and draws them. /// </summary> /// <param name="graphics"> /// Graphics object used for drawing. /// </param> protected void DoDraw(Graphics graphics) { if (m_values != null && m_values.Length > 0) { graphics.SmoothingMode = SmoothingMode.AntiAlias; float width = ClientSize.Width - m_leftMargin - m_rightMargin; float height = ClientSize.Height - m_topMargin - m_bottomMargin; // if the width or height if <=0 an exception would be thrown -> exit method.. if (width <= 0 || height <= 0) return; if (m_pieChart != null) m_pieChart.Dispose(); if (m_colors != null && m_colors.Length > 0) m_pieChart = new PieChart3D(m_leftMargin, m_topMargin, width, height, m_values, m_colors, m_sliceRelativeHeight, m_texts); else m_pieChart = new PieChart3D(m_leftMargin, m_topMargin, width, height, m_values, m_sliceRelativeHeight, m_texts); m_pieChart.FitToBoundingRectangle = m_fitChart; m_pieChart.InitialAngle = m_initialAngle; m_pieChart.SliceRelativeDisplacements = m_relativeSliceDisplacements; m_pieChart.EdgeColorType = m_edgeColorType; m_pieChart.EdgeLineWidth = m_edgeLineWidth; m_pieChart.ShadowStyle = m_shadowStyle; m_pieChart.HighlightedIndex = m_highlightedIndex; m_pieChart.Draw(graphics); m_pieChart.Font = this.Font; m_pieChart.ForeColor = this.ForeColor; m_pieChart.PlaceTexts(graphics); } } /// <summary> /// Handles <c>MouseEnter</c> event to activate the tooltip. /// </summary> /// <param name="e"></param> protected override void OnMouseEnter(System.EventArgs e) { base.OnMouseEnter(e); m_defaultToolTipAutoPopDelay = m_toolTip.AutoPopDelay; m_toolTip.AutoPopDelay = Int16.MaxValue; } /// <summary> /// Handles <c>MouseLeave</c> event to disable tooltip. /// </summary> /// <param name="e"></param> protected override void OnMouseLeave(System.EventArgs e) { base.OnMouseLeave(e); m_toolTip.RemoveAll(); m_toolTip.AutoPopDelay = m_defaultToolTipAutoPopDelay; m_highlightedIndex = -1; Refresh(); } /// <summary> /// Handles <c>MouseMove</c> event to display tooltip for the pie /// slice under pointer and to display slice in highlighted color. /// </summary> /// <param name="e"></param> protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e) { base.OnMouseMove(e); if (m_pieChart != null && m_values != null && m_values.Length > 0) { if (index != m_highlightedIndex) { m_highlightedIndex = index; //brol modif if (displaceOnMouseOn) { if (m_relativeSliceDisplacements.Length > m_highlightedIndex && m_highlightedIndex >= 0) { m_relativeSliceDisplacements[m_highlightedIndex] = m_relativeSliceDisplacements[m_highlightedIndex] + 0.5F; } else tempSliceDisplacements.CopyTo(m_relativeSliceDisplacements, 0); } Refresh(); } if (m_highlightedIndex != -1) { if (m_toolTipTexts == null || m_toolTipTexts.Length <= m_highlightedIndex || m_toolTipTexts[m_highlightedIndex].Length == 0) m_toolTip.SetToolTip(this, m_values[m_highlightedIndex].ToString()); else m_toolTip.SetToolTip(this, m_toolTipTexts[m_highlightedIndex]); } else { m_toolTip.RemoveAll(); } } } /// <summary> /// Clean up any resources being used. /// </summary> /*protected override void Dispose(bool disposing) { if (!m_disposed) { try { if (disposing) { m_pieChart.Dispose(); m_toolTip.Dispose(); } m_disposed = true; } finally { base.Dispose(disposing); } } }*/ /// <summary> /// Gets a flag indicating if at least one value is nonzero. /// </summary> private bool HasAnyValue { get { if (m_values == null) return false; foreach (decimal angle in m_values) { if (angle != 0) { return true; } } return false; } } private PieChart3D m_pieChart = null; private float m_leftMargin; private float m_topMargin; private float m_rightMargin; private float m_bottomMargin; private bool m_fitChart = false; private double[] m_values = null; private Color[] m_colors = null; private float m_sliceRelativeHeight; private string[] m_texts = null; private string[] m_toolTipTexts = null; private ShadowStyle m_shadowStyle = ShadowStyle.GradualShadow; private EdgeColorType m_edgeColorType = EdgeColorType.SystemColor; private float m_edgeLineWidth = 1F; private float m_initialAngle; private int m_highlightedIndex = -1; private ToolTip m_toolTip = null; /// <summary> /// Default AutoPopDelay of the ToolTip control. /// </summary> private int m_defaultToolTipAutoPopDelay; /// <summary> /// Flag indicating that object has been disposed. /// </summary> //private bool m_disposed = false; /// <summary> /// Store m_relativeSliceDisplacements values to restore it after OnMouseMove event /// </summary> /// <summary> /// Flag indicating that the selected part of the pie move on mouse on /// </summary> private bool displaceOnMouseOn = false;//brol modif } }
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Vielen Dank im Voraus.
Dokument erstellt 16/10/2009, zuletzt geändert 26/10/2018
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/cs-broldev-source-rf-model/drawing/chart//PieChartControl.cs.html
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