colorpickerdropdown.cs

c#编写的仿OUTLOOK工具条的Winform菜单

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Diagnostics;
using UtilityLibrary.General;
using UtilityLibrary.WinControls;
using UtilityLibrary.Win32;

namespace UtilityLibrary.WinControls
{
	#region Delegates
	public delegate void ColorChangeEventHandler(object sender, ColorChangeArgs e);
	#endregion

	#region Helper Classes
	[ToolboxItem(false)]
	public class ColorChangeArgs: EventArgs
	{
		#region Class Variables
		Color newColor;
		string senderName;
		#endregion
		
		#region Constructors
		public ColorChangeArgs(Color newColor,  string senderName)
		{
			this.newColor = newColor;
			this.senderName = senderName;
		}
		#endregion

		#region Properties
		public Color NewColor
		{
			get { return newColor;}
		}

		public string SenderName
		{
			get	{ return senderName;}
		}
		#endregion
	}
	
	#endregion

	/// <summary>
	/// Summary description for ColorPickerDropDown.
	/// </summary>
	public class ColorPickerDropDown : System.Windows.Forms.Form
	{
		
		#region Events
		public event ColorChangeEventHandler ColorChanged;
		#endregion
		
		#region Class Variables
		private System.Windows.Forms.TabControl tabControl;
		private ColorListBox webColorsList;
		private ColorListBox systemColorsList;
		private System.Windows.Forms.TabPage customColorsPage;
		private System.Windows.Forms.TabPage webColorsPage;
		private System.Windows.Forms.TabPage systemColorsPage;
		private const int CUSTOM_COLORS_COUNT = 64;
		private const int CUSTOM_COLOR_WIDTH = 20;
		private const int CUSTOM_COLOR_HEIGHT = 20;
		private const int CUSTOM_COLORS_HORIZ_ITEMS = 8;
		private const int CUSTOM_COLORS_VERT_ITEMS = 8;
		private const int USED_ROWS = 6;
		private const int USED_COLS = 8;
		private bool customColorsRectsSaved = false;
		private bool rightButtonDown = false;
		private int currentCustomColorIndex = 0;
		private Color currentColor;
		private bool exitLoop = false;
		
		static Rectangle[] customColorsRects = new Rectangle[64];

        #region Custom Colors Array
		static Color[] customColors = {
										  Color.FromArgb(255,255,255), Color.FromArgb(224,224,224), Color.FromArgb(192,192,192),
										  Color.FromArgb(128,128,128), Color.FromArgb(64,64,64), Color.FromArgb(0,0,0),
										  Color.White, Color.White,

										  Color.FromArgb(255,192,192), Color.FromArgb(255,128,128), Color.FromArgb(255,0,0),
										  Color.FromArgb(192,0,0), Color.FromArgb(128,0,0), Color.FromArgb(64,0,0),
										  Color.White, Color.White,

										  Color.FromArgb(255,224,192), Color.FromArgb(255,192,128), Color.FromArgb(255,128,0),
										  Color.FromArgb(192,64,0), Color.FromArgb(128,64,0), Color.FromArgb(128,64,64),
										  Color.White, Color.White,

										  Color.FromArgb(255,255,192), Color.FromArgb(255,255,128), Color.FromArgb(255,255,0),
										  Color.FromArgb(192,192,0), Color.FromArgb(128,128,0), Color.FromArgb(64,64,0),
										  Color.White, Color.White,

										  Color.FromArgb(192,255,192), Color.FromArgb(128,255,128), Color.FromArgb(0,255,0),
										  Color.FromArgb(0,192,0), Color.FromArgb(0,128,0), Color.FromArgb(0,64,0),
										  Color.White, Color.White,

										  Color.FromArgb(192,255,255), Color.FromArgb(128,255,255), Color.FromArgb(0,255,255),
										  Color.FromArgb(0,192,192), Color.FromArgb(0,128,128), Color.FromArgb(0,64,64),
										  Color.White, Color.White,

										  Color.FromArgb(192,192,255), Color.FromArgb(128,128,255), Color.FromArgb(0,0,255),
										  Color.FromArgb(0,0,192), Color.FromArgb(0,0,128), Color.FromArgb(0,0,64),
										  Color.White, Color.White,

										  Color.FromArgb(255,192,255), Color.FromArgb(255,128,255), Color.FromArgb(255,0,255),
										  Color.FromArgb(192,0,192), Color.FromArgb(128,0,128), Color.FromArgb(64,0,64),
										  Color.White, Color.White};
		#endregion

		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		#endregion
			
		#region Constructors
		public ColorPickerDropDown()
		{
			// This call is required by the Windows.Forms Form Designer.
			webColorsList = new ColorListBox();
			systemColorsList = new ColorListBox();
			StartPosition = FormStartPosition.Manual;
			InitializeComponent();
            InitializeListBoxes();
		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}


		#endregion

		#region Overrides
		protected override void OnPaint(PaintEventArgs pe)
		{
			base.OnPaint(pe);
			Graphics g = pe.Graphics;
			Rectangle rc = ClientRectangle;
			g.DrawRectangle(Pens.Black, rc.Left, rc.Top, rc.Width-1, rc.Height-1);
		}
		
		protected override void OnDeactivate(EventArgs e)
		{
			base.OnDeactivate(e);
			exitLoop = true;
			Visible = false;
		}

		protected override void OnResize(EventArgs e)
		{
			base.OnResize(e);
			
			// Size tab control
			Rectangle rc = ClientRectangle;
			tabControl.Left = 2;
			tabControl.Top = 2;
			tabControl.Width = rc.Width-3;
			tabControl.Height = rc.Height-3;

			// Size customColorsPage
			customColorsPage.Left = 0;
			customColorsPage.Top = 0;
			customColorsPage.Width = rc.Width-3;
			customColorsPage.Height = rc.Height-3;

			// Size webColorsPage
			webColorsPage.Left = 0;
			webColorsPage.Top = 0;
			webColorsPage.Width = rc.Width-3;
			webColorsPage.Height = rc.Height-3;
			//  Size listbox in webcolorPage
			webColorsList.Left = 0;
			webColorsList.Top = 0;
			webColorsList.Width = rc.Width-15;
			webColorsList.Height = rc.Height-26;

			// Size systemColorsPage
			systemColorsPage.Left = 0;
			systemColorsPage.Top = 0;
			systemColorsPage.Width = rc.Width-3;
			systemColorsPage.Height = rc.Height-3;
			systemColorsList.Left = 0;
			systemColorsList.Top = 0;
			systemColorsList.Width = rc.Width-15;
			systemColorsList.Height = rc.Height-26;

		}

		protected override  void WndProc(ref Message m)
		{
			bool callBase = true;
			switch(m.Msg)
			{
				case ((int)Msg.WM_PAINT):
					callBase = false;
					base.WndProc(ref m);
					exitLoop = false;
					// Let any message directed to children
					// to be process before we start our loop
					Application.DoEvents();
					StartPeekMessageLoop();
					break;
				default:
					break;
			}
			if ( callBase )
				base.WndProc(ref m);
		}

		#endregion
	
		#region Properties
		public Color CurrentColor
		{
			set
			{
				currentColor = value;
			}
		}
		
		#endregion
	
		#region Implementation
		protected void OnColorChanged(ColorChangeArgs e)
		{
			currentColor = e.NewColor;
			if ( ColorChanged != null ) 
				ColorChanged(this, e);
		}

		void InitializeListBoxes()
		{
			webColorsList.ColorArray = ColorUtil.KnownColorNames;
			systemColorsList.ColorArray = ColorUtil.SystemColorNames;

			// 
			// customColorsPage
			// 
			this.customColorsPage.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.customColorsPage.Location = new System.Drawing.Point(4, 22);
			this.customColorsPage.Name = "customColorsPage";
			this.customColorsPage.Size = new System.Drawing.Size(178, 188);
			this.customColorsPage.TabIndex = 0;
			this.customColorsPage.Text = "Custom";
			this.customColorsPage.Click += new System.EventHandler(this.customColorsPage_Click);
			this.customColorsPage.Paint += new System.Windows.Forms.PaintEventHandler(this.customColorsPage_Paint);
			this.customColorsPage.MouseDown += new System.Windows.Forms.MouseEventHandler(this.customColorsPage_MouseDown);
		
			// 
			// webColorsList
			// 
			this.webColorsList.BorderStyle = System.Windows.Forms.BorderStyle.None;
			this.webColorsList.Location = new System.Drawing.Point(6, 4);
			this.webColorsList.Name = "webColorsList";
			this.webColorsList.Size = new System.Drawing.Size(178, 188);
			this.webColorsList.TabIndex = 0;
			this.webColorsList.Click += new System.EventHandler(this.webColorsList_Click);
			this.webColorsPage.Controls.AddRange(new System.Windows.Forms.Control[] {
																						this.webColorsList});
			// 
			// systemColorsList
			// 
			this.systemColorsList.BorderStyle = System.Windows.Forms.BorderStyle.None;
			this.systemColorsList.Location = new System.Drawing.Point(8, 8);
			this.systemColorsList.Name = "systemColorsList";
			this.systemColorsList.Size = new System.Drawing.Size(178, 188);
			this.systemColorsList.TabIndex = 0;
			this.systemColorsList.Click += new System.EventHandler(this.systemColorsList_Click);
			this.systemColorsPage.Controls.AddRange(new System.Windows.Forms.Control[] {
																						   this.systemColorsList});

		}

		void customColorsPage_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
		{
			// Paint custom colors
            Graphics g = e.Graphics;
			Rectangle rc = customColorsPage.ClientRectangle;
			
			rc.Inflate(-2, -2);
			int gap = 3;
			int index;
			for ( int i = 0; i < CUSTOM_COLORS_HORIZ_ITEMS; i++ ) 
			{
				int Left = rc.Left + (CUSTOM_COLOR_WIDTH*i)+ i*gap;
				int Top = rc.Top;

				for ( int j = 0; j < CUSTOM_COLORS_VERT_ITEMS; j++ )
				{
					Top = rc.Top + (CUSTOM_COLOR_HEIGHT*j) + (j*gap);
					index = i*8 + j;
					ControlPaint.DrawBorder3D(g, Left, Top, CUSTOM_COLOR_WIDTH, CUSTOM_COLOR_HEIGHT, Border3DStyle.Sunken);
					g.FillRectangle(new SolidBrush(customColors[index]),Left+1, Top+1, CUSTOM_COLOR_WIDTH-2, CUSTOM_COLOR_HEIGHT-2);

					if ( !customColorsRectsSaved )
					{
						customColorsRects[index] = new Rectangle(Left+1, Top+1, CUSTOM_COLOR_WIDTH-2, CUSTOM_COLOR_HEIGHT-2);
					}
					
					if ( currentCustomColorIndex == index ) 
					{
						Rectangle reverseRect = new Rectangle(Left-1, Top-1, CUSTOM_COLOR_WIDTH+3, CUSTOM_COLOR_HEIGHT+3);
						reverseRect = customColorsPage.RectangleToScreen(reverseRect);
						ControlPaint.DrawReversibleFrame(reverseRect, SystemColors.Control, FrameStyle.Thick);
					}

				}
			}
			customColorsRectsSaved = true;
		}

		void customColorsPage_Click(object sender, System.EventArgs e)
		{

			// Get current mouse position
			Point screenMousePos = Control.MousePosition;
			// Convert mouse position to client coordinates
			Point clientMousePos = customColorsPage.PointToClient(screenMousePos);
			if ( rightButtonDown == true ) 
			{  
				// Check if we need to show the custom color color picker dialog
				int index = -1;
				if ( IsSpareColor(clientMousePos, ref index)) 
				{
					CustomColorDlg dlg = new CustomColorDlg();
					dlg.CurrentColor = customColors[index];