DotNet 4.8.1 build of DotNetBar
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265
PROMS/DotNetBar Source Code/Controls/SymbolBox.cs
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265
PROMS/DotNetBar Source Code/Controls/SymbolBox.cs
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using DevComponents.DotNetBar.Rendering;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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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.Windows.Forms;
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namespace DevComponents.DotNetBar.Controls
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{
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/// <summary>
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/// Represents the control which displays symbol from symbols library.
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/// </summary>
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[ToolboxBitmap(typeof(SymbolBox), "Controls.SymbolBox.ico"), ToolboxItem(true)]
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public class SymbolBox : Control
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{
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#region Constructor
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/// <summary>
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/// Initializes a new instance of the SymbolBox class.
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/// </summary>
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public SymbolBox()
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{
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this.SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint |
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ControlStyles.Opaque | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor |
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ControlStyles.StandardDoubleClick | DisplayHelp.DoubleBufferFlag, true);
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_BackgroundStyle = new ElementStyle();
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_BackgroundStyle.StyleChanged += new EventHandler(this.VisualPropertyChanged);
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}
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#endregion
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#region Implementation
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protected override void OnPaint(PaintEventArgs e)
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{
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if ((this.BackColor.IsEmpty || this.BackColor == Color.Transparent))
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{
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base.OnPaintBackground(e);
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}
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if (_BackgroundStyle != null)
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_BackgroundStyle.SetColorScheme(this.GetColorScheme());
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PaintBackground(e);
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PaintContent(e);
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base.OnPaint(e);
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}
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private void PaintContent(PaintEventArgs e)
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{
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float symbolSize = _SymbolSize;
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Graphics g = e.Graphics;
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Rectangle r = ElementStyleLayout.GetInnerRect(_BackgroundStyle, this.ClientRectangle);
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if (symbolSize <= 0)
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symbolSize = Math.Max(1, Math.Min(r.Width, r.Height) * 72 / g.DpiX - 1);
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Color symbolColor = _SymbolColor;
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if (_SymbolColor.IsEmpty)
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{
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if (!_BackgroundStyle.TextColor.IsEmpty)
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symbolColor = _BackgroundStyle.TextColor;
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else if (!this.ForeColor.IsEmpty)
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symbolColor = this.ForeColor;
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else
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symbolColor = SystemColors.ControlText;
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}
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TextDrawing.DrawStringLegacy(g, _SymbolRealized, Symbols.GetFont(symbolSize, _SymbolSet),
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symbolColor, r, eTextFormat.HorizontalCenter | eTextFormat.VerticalCenter);
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}
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protected virtual void PaintBackground(PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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Rectangle r = this.ClientRectangle;
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ElementStyle style = _BackgroundStyle;
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if (!this.BackColor.IsEmpty && this.BackColor != Color.Transparent)
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{
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DisplayHelp.FillRectangle(g, r, this.BackColor);
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}
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if (this.BackgroundImage != null)
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base.OnPaintBackground(e);
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if (style.Custom)
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{
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SmoothingMode sm = g.SmoothingMode;
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//if (m_AntiAlias)
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// g.SmoothingMode = SmoothingMode.HighQuality;
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ElementStyleDisplayInfo displayInfo = new ElementStyleDisplayInfo(style, e.Graphics, r);
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ElementStyleDisplay.Paint(displayInfo);
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//if (m_AntiAlias)
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// g.SmoothingMode = sm;
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}
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}
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/// <summary>
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/// Returns the color scheme used by control. Color scheme for Office2007 style will be retrieved from the current renderer instead of
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/// local color scheme referenced by ColorScheme property.
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/// </summary>
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/// <returns>An instance of ColorScheme object.</returns>
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protected virtual ColorScheme GetColorScheme()
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{
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BaseRenderer r = Rendering.GlobalManager.Renderer;
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if (r is Office2007Renderer)
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return ((Office2007Renderer)r).ColorTable.LegacyColors;
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return new ColorScheme();
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}
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private ElementStyle _BackgroundStyle = null;
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/// <summary>
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/// Specifies the background style of the control.
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/// </summary>
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[Browsable(true), Category("Style"), Description("Gets or sets bar background style."), DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
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public ElementStyle BackgroundStyle
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{
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get { return _BackgroundStyle; }
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}
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/// <summary>
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/// Resets style to default value. Used by windows forms designer.
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/// </summary>
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[EditorBrowsable(EditorBrowsableState.Never)]
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public void ResetBackgroundStyle()
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{
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_BackgroundStyle.StyleChanged -= new EventHandler(this.VisualPropertyChanged);
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_BackgroundStyle = new ElementStyle();
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_BackgroundStyle.StyleChanged += new EventHandler(this.VisualPropertyChanged);
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this.Invalidate();
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}
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private void VisualPropertyChanged(object sender, EventArgs e)
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{
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this.Invalidate();
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}
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/// <summary>
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/// Gets the realized symbol string.
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/// </summary>
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[Browsable(false)]
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public string SymbolRealized
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{
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get { return _SymbolRealized; }
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}
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private string _Symbol = "\uf015", _SymbolRealized = "\uf015";
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/// <summary>
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/// Indicates the symbol displayed on face of the button instead of the image. Setting the symbol overrides the image setting.
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/// </summary>
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[DefaultValue("\uf015"), Category("Appearance"), Description("Indicates the symbol displayed on face of the button instead of the image. Setting the symbol overrides the image setting.")]
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[Editor("DevComponents.DotNetBar.Design.SymbolTypeEditor, DevComponents.DotNetBar.Design, Version=14.1.0.37, Culture=neutral, PublicKeyToken=90f470f34c89ccaf", typeof(System.Drawing.Design.UITypeEditor))]
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public string Symbol
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{
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get { return _Symbol; }
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set
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{
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if (value != _Symbol)
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{
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string oldValue = _Symbol;
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_Symbol = value;
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OnSymbolChanged(oldValue, value);
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}
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}
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}
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/// <summary>
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/// Called when Symbol property has changed.
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/// </summary>
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/// <param name="oldValue">Old property value</param>
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/// <param name="newValue">New property value</param>
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protected virtual void OnSymbolChanged(string oldValue, string newValue)
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{
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if (string.IsNullOrEmpty(newValue))
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_SymbolRealized = "";
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else
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_SymbolRealized = Symbols.GetSymbol(newValue);
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//OnPropertyChanged(new PropertyChangedEventArgs("Symbol"));
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this.Invalidate();
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}
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private eSymbolSet _SymbolSet = eSymbolSet.Awesome;
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/// <summary>
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/// Gets or sets the symbol set used to represent the Symbol.
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/// </summary>
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[Browsable(false), DefaultValue(eSymbolSet.Awesome)]
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public eSymbolSet SymbolSet
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{
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get { return _SymbolSet; }
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set
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{
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if (_SymbolSet != value)
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{
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eSymbolSet oldValue = _SymbolSet;
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_SymbolSet = value;
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OnSymbolSetChanged(oldValue, value);
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}
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}
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}
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/// <summary>
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/// Called when SymbolSet property value changes.
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/// </summary>
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/// <param name="oldValue">Indciates old value</param>
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/// <param name="newValue">Indicates new value</param>
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protected virtual void OnSymbolSetChanged(eSymbolSet oldValue, eSymbolSet newValue)
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{
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this.Invalidate();
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}
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private Color _SymbolColor = Color.Empty;
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/// <summary>
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/// Gets or sets the color of the Symbol.
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/// </summary>
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[Category("Appearance"), Description("Indicates color of the Symbol.")]
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public Color SymbolColor
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{
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get { return _SymbolColor; }
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set { _SymbolColor = value; this.Refresh(); }
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}
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/// <summary>
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/// Gets whether property should be serialized.
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/// </summary>
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[EditorBrowsable(EditorBrowsableState.Never)]
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public bool ShouldSerializeSymbolColor()
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{
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return !_SymbolColor.IsEmpty;
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}
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/// <summary>
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/// Resets property to its default value.
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/// </summary>
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[EditorBrowsable(EditorBrowsableState.Never)]
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public void ResetSymbolColor()
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{
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this.SymbolColor = Color.Empty;
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}
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private float _SymbolSize = 0f;
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/// <summary>
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/// Indicates the size of the symbol in points.
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/// </summary>
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[DefaultValue(0f), Category("Appearance"), Description("Indicates the size of the symbol in points.")]
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public float SymbolSize
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{
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get { return _SymbolSize; }
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set
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{
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if (value != _SymbolSize)
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{
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float oldValue = _SymbolSize;
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_SymbolSize = value;
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OnSymbolSizeChanged(oldValue, value);
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}
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}
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}
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/// <summary>
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/// Called when SymbolSize property has changed.
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/// </summary>
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/// <param name="oldValue">Old property value</param>
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/// <param name="newValue">New property value</param>
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protected virtual void OnSymbolSizeChanged(float oldValue, float newValue)
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{
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//OnPropertyChanged(new PropertyChangedEventArgs("SymbolSize"));
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this.Invalidate();
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}
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#endregion
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}
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}
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