autolistform.cs

Fireball.CodeEditor is an source code editor control derived from the best compona SyntaxBox Control

//ORIGINAL LGPL SOURCE CODE FINDED ON COMPONA LGPL SOURCE CODE
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using Fireball.Win32;

namespace Fireball.Windows.Forms.CodeEditor
{
	/// <summary>
	/// Summary description for AutoListForm.
	/// </summary>
	[ToolboxItem(false)]
	public class AutoListForm : Form
	{
		[DllImport("user32.dll", EntryPoint="SendMessage")]
		private static extern int SendMessage(IntPtr hWnd, int message, int _data, int _id);

		private TabListBox LB;
		private ArrayList items = new ArrayList();
		private ToolTip tooltip;
		private IContainer components;
		private WeakReference _Control = null;

		private Control ParentControl
		{
			get
			{
				if (_Control != null)
					return (Control) _Control.Target;
				else
					return null;
			}
			set { _Control = new WeakReference(value); }
		}


		/// <summary>
		/// The imagelist that should be used by the AutoListForm
		/// </summary>
		public ImageList Images = null;

		/// <summary>
		/// Default AltoListControl constructor.
		/// </summary>
		public AutoListForm(Control Owner)
		{
			this.ParentControl = Owner;
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
			//SetStyle(ControlStyles.ContainerControl  ,false);
			SetStyle(ControlStyles.Selectable, true);

			// TODO: Add any initialization after the InitForm call

		}

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

		public void SendKey(int KeyCode)
		{
			SendMessage(LB.Handle, (int) WindowMessage.WM_KEYDOWN, KeyCode, 0);
		}

		#region Component Designer generated code

		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container();
			this.LB = new Fireball.Windows.Forms.CodeEditor.TabListBox();
			this.tooltip = new System.Windows.Forms.ToolTip(this.components);
			this.SuspendLayout();
			// 
			// LB
			// 
			this.LB.BorderStyle = System.Windows.Forms.BorderStyle.None;
			this.LB.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
			this.LB.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte) (0)));
			this.LB.IntegralHeight = false;
			this.LB.ItemHeight = 16;
			this.LB.Location = new System.Drawing.Point(4, 4);
			this.LB.Name = "LB";
			this.LB.Size = new System.Drawing.Size(168, 184);
			this.LB.Sorted = true;
			this.LB.TabIndex = 0;
			this.LB.KeyDown += new System.Windows.Forms.KeyEventHandler(this.LB_KeyDown);
			this.LB.MouseDown += new System.Windows.Forms.MouseEventHandler(this.LB_MouseDown);
			this.LB.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.LB_KeyPress);
			this.LB.DoubleClick += new System.EventHandler(this.LB_DoubleClick);
			this.LB.KeyUp += new System.Windows.Forms.KeyEventHandler(this.LB_KeyUp);
			this.LB.SelectedIndexChanged += new System.EventHandler(this.LB_SelectedIndexChanged);
			this.LB.MouseMove += new System.Windows.Forms.MouseEventHandler(this.LB_MouseMove);
			this.LB.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.LB_DrawItem);
			// 
			// tooltip
			// 
			this.tooltip.AutoPopDelay = 5000;
			this.tooltip.InitialDelay = 100;
			this.tooltip.ReshowDelay = 100;
			// 
			// AutoListForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(168, 165);
			this.Controls.AddRange(new System.Windows.Forms.Control[]
				{
					this.LB
				});
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
			this.Name = "AutoListForm";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
			this.Resize += new System.EventHandler(this.AutoListForm_Resize);
			this.ResumeLayout(false);

		}

		#endregion

		/// <summary>		
		/// </summary>
		/// <param name="e"></param>
		protected override void OnPaint(PaintEventArgs e)
		{
			e.Graphics.Clear(SystemColors.Control);
			ControlPaint.DrawBorder3D(e.Graphics, 0, 0, this.Width, this.Height, Border3DStyle.Raised);

		}

		public void SelectItem(string Text)
		{
			Text = Text.ToLower();

			for (int i = 0; i < LB.Items.Count; i++)
			{
				ListItem li = (ListItem) LB.Items[i];
				string lis = li.Text.ToLower();
				if (lis.StartsWith(Text))
				{
					LB.SelectedIndex = i;
					break;
				}
			}
		}

		private void LB_KeyDown(object sender, KeyEventArgs e)
		{
			this.OnKeyDown(e);
			//	e.Handled =true;
		}

		private void LB_KeyPress(object sender, KeyPressEventArgs e)
		{
			this.OnKeyPress(e);
			//	e.Handled =true;
		}

		private void LB_KeyUp(object sender, KeyEventArgs e)
		{
			this.OnKeyUp(e);
			//	e.Handled =true;
		}

		/// <summary>
		/// For public use only.
		/// </summary>
		/// <param name="keyData"></param>
		/// <returns></returns>
		protected override bool IsInputKey(Keys keyData)
		{
			return true;
		}

		/// <summary>
		/// For public use only.
		/// </summary>
		/// <param name="charCode"></param>
		/// <returns></returns>
		protected override bool IsInputChar(char charCode)
		{
			return true;
		}

		/// <summary>
		/// Adds a new ListItem to the AutoListForm.
		/// </summary>
		/// <param name="Text">Text of the new ListItem</param>
		/// <param name="ImageIndex">Image index that should be assigned to the new ListItem</param>
		/// <returns></returns>
		public ListItem Add(string Text, int ImageIndex)
		{
			return this.Add(Text, Text, ImageIndex);
		}

		/// <summary>
		/// Adds a new ListItem to the AutoListForm.
		/// </summary>
		/// <param name="Text">Text of the new ListItem</param>
		/// <param name="InsertText">Text to insert when this item is selected</param>
		/// <param name="ImageIndex">Image index that should be assigned to the new ListItem</param>
		/// <returns></returns>
		public ListItem Add(string Text, string InsertText, int ImageIndex)
		{
			ListItem li = new ListItem(Text, ImageIndex, "", InsertText);
			this.LB.Items.Add(li);


			//this.LB.Sorted =true;
			return li;
		}

		public ListItem Add(string Text, string InsertText, string ToolTip, int ImageIndex)
		{
			ListItem li = new ListItem(Text, ImageIndex, "", InsertText);
			this.LB.Items.Add(li);
			li.ToolTip = ToolTip;
			//this.LB.Sorted =true;
			return li;
		}

		/// <summary>
		/// Clears the content of the AutoList.
		/// </summary>
		public void Clear()
		{
			this.LB.Items.Clear();
		}

		private void LB_DrawItem(object sender, DrawItemEventArgs e)
		{
			bool selected = (e.State & DrawItemState.Selected) == DrawItemState.Selected;

			if (e.Index == -1)
				return;

			int Offset = 24;

			ListItem li = (ListItem) LB.Items[e.Index];
			string text = li.Text;
			Brush bg, fg;

			if (selected)
			{
				bg = SystemBrushes.Highlight;
				fg = SystemBrushes.HighlightText;
				//fg=Brushes.Black;
			}
			else
			{
				bg = SystemBrushes.Window;
				fg = SystemBrushes.WindowText;
				//bg=Brushes.White;
				//fg=Brushes.Black;
			}

			if (!selected)
			{
				e.Graphics.FillRectangle(bg, 0, e.Bounds.Top, e.Bounds.Width, LB.ItemHeight);
				//e.Graphics.FillRectangle (SystemBrushes.Highlight,0,e.Bounds.Top,27 ,LB.ItemHeight); 
			}
			else
			{
				e.Graphics.FillRectangle(SystemBrushes.Window, Offset, e.Bounds.Top, e.Bounds.Width - Offset, LB.ItemHeight);
				e.Graphics.FillRectangle(SystemBrushes.Highlight, new Rectangle(Offset + 1, e.Bounds.Top + 1, e.Bounds.Width - Offset - 2, LB.ItemHeight - 2));


				//e.Graphics.FillRectangle (SystemBrushes.Highlight,27,e.Bounds.Top,e.Bounds.Width-27 ,LB.ItemHeight); 
				//e.Graphics.FillRectangle (new SolidBrush(Color.FromArgb (182,189,210)),new Rectangle (1+27,e.Bounds.Top+1,e.Bounds.Width-2- ,LB.ItemHeight-2));


				ControlPaint.DrawFocusRectangle(e.Graphics, new Rectangle(Offset, e.Bounds.Top, e.Bounds.Width - Offset, LB.ItemHeight));
			}


			e.Graphics.DrawString(text, e.Font, fg, Offset + 2, e.Bounds.Top + 1);


			if (Images != null)
				e.Graphics.DrawImage(Images.Images[li.Type], 6, e.Bounds.Top + 0);


		}

		/// <summary>
		/// Gets the "insert text" from the selected item.
		/// </summary>
		public string SelectedText
		{
			get
			{
				if (LB.SelectedItem == null)
					return "";

				ListItem li = (ListItem) LB.SelectedItem;
				return li.InsertText;
			}
		}

		private void LB_DoubleClick(object sender, EventArgs e)
		{
			this.OnDoubleClick(e);
		}

		public void BeginLoad()
		{
			this.LB.Sorted = false;
			this.LB.DrawMode = DrawMode.Normal;
			this.LB.SuspendLayout();
		}

		public void EndLoad()
		{
			this.LB.ResumeLayout();
			this.LB.Sorted = true;
			this.LB.DrawMode = DrawMode.OwnerDrawFixed;

			//set height
			this.Height = 0;
			if (this.LB.Items.Count > 10)
			{
				this.Height = this.LB.ItemHeight*11 + 12;
			}
			else
			{
				this.Height = this.LB.ItemHeight*(this.LB.Items.Count) + 12;
			}
			int max = 0;
			Graphics g = LB.CreateGraphics();
			foreach (ListItem li in LB.Items)
			{
				int w = (int) g.MeasureString(li.Text, LB.Font).Width + 45;
				if (w > max)
					max = w;
			}
			this.Width = max + SystemInformation.VerticalScrollBarWidth;
			this.Refresh();
			g.Dispose();


		}


		private void AutoListForm_Resize(object sender, EventArgs e)
		{
			LB.Size = new Size(this.Width - 8, this.Height - 8);

		}

		private void LB_SelectedIndexChanged(object sender, EventArgs e)
		{
			ListItem li = (ListItem) LB.SelectedItem;

			if (li.ToolTip != "")
			{
				tooltip.ShowAlways = true;
				tooltip.SetToolTip(LB, li.ToolTip);
				tooltip.InitialDelay = 2;
				tooltip.Active = true;
			}
		}

		private void LB_MouseDown(object sender, MouseEventArgs e)
		{
			SelectItem(e.X, e.Y);
		}

		private void SelectItem(int x, int y)
		{
			Point p = new Point(x, y);
			int r = (p.Y/LB.ItemHeight) + LB.TopIndex;
			if (r != LB.SelectedIndex)
			{
				if (r < LB.Items.Count && r >= 0)
				{
					LB.SelectedIndex = r;

				}
			}

		}

		private void LB_MouseMove(object sender, MouseEventArgs e)
		{
			if (e.Button != 0)
			{
				SelectItem(e.X, e.Y);
			}
		}
	}
}