Source/ButtonItem.cs

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using System.ComponentModel;
using System;
using System.Drawing;
using System.Windows.Forms;

namespace DevComponents.DotNetBar
{
	/// <summary>
	/// Delegate for OptionGroupChanging event.
	/// </summary>
	public delegate void OptionGroupChangingEventHandler(object sender, OptionGroupChangingEventArgs e);

    /// <summary>
    ///    Summary description for ButtonItem.
    /// </summary>
    [System.ComponentModel.ToolboxItem(false),System.ComponentModel.DesignTimeVisible(false),DefaultEvent("Click"),Designer(typeof(Design.BaseItemDesigner))]
    public class ButtonItem:PopupItem,IPersonalizedMenuItem
    {
		#region Events
		/// <summary>
		/// Occurs when Checked property has changed.
		/// </summary>
		public event EventHandler CheckedChanged;
		/// <summary>
		/// Occurs before an item in option group is checked and provides opportunity to cancel that.
		/// </summary>
		public event OptionGroupChangingEventHandler OptionGroupChanging;
		#endregion

		#region Private Variables
		private const int STATEBUTTON_SPACING=3;
		private System.Drawing.Image m_Image;
        private System.Drawing.Image m_ImageSmall;
		private int m_ImageIndex; // Image index if image from ImageList is used
		private System.Drawing.Image m_HoverImage;
		private int m_HoverImageIndex; // Image index if image from ImageList is used
		private System.Drawing.Image m_DisabledImage;
		private bool m_DisabledImageCustom=false;
		private int m_DisabledImageIndex; // Image index if image from ImageList is used
		private System.Drawing.Icon m_DisabledIcon=null;
		private System.Drawing.Image m_PressedImage;
		private int m_PressedImageIndex;  // Image index if image from ImageList is used
		private eButtonStyle m_ButtonStyle;
		private eImagePosition m_ImagePosition;
		private Font m_Font;

		private string m_AlternateShortcutText;

		private bool m_MouseOver = false;
        private bool m_MouseOverExpand = false;
		private bool m_MouseDown;

		private bool m_Checked;
		
		private Rectangle m_ImageDrawRect;
		private Rectangle m_TextDrawRect;
		private Rectangle m_SubItemsRect;
		private int m_VerticalPadding;
		private int m_HorizontalPadding;