Regions Add-In for VS.NET 2003

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using EnvDTE;


namespace RegionsAddIn
{
	/// <summary>
	/// Summary description for RegionsDialog.
	/// </summary>
	public class RegionsDialog : System.Windows.Forms.Form
	{
		private System.Windows.Forms.CheckBox checkBoxNewRegion;
		private System.Windows.Forms.TextBox textBoxNewRegion;
		private System.Windows.Forms.Button buttonOK;
		private System.Windows.Forms.Button buttonCancel;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.ErrorProvider errorProvider;
		private System.ComponentModel.IContainer components = null;
		private int selectionTopLine;
		private int selectionBottomLine;
		bool atStartOfBottomLine;
		private System.Windows.Forms.ListBox listBoxTemplate;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.CheckBox checkBoxAddToTemplates;
		private _DTE applicationObject;
		private Document document;
		private RegionsAddIn.RegionTree _regionTree;
		private TreeItemTagData _targetRegion;

		public RegionsDialog(Document document, int selectionTopLine, int selectionBottomLine, bool atStartOfBottomLine)
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			this.selectionTopLine = selectionTopLine;
			this.selectionBottomLine = selectionBottomLine;
			this.atStartOfBottomLine = atStartOfBottomLine;
			this.listBoxTemplate.Enabled = false;
			this.applicationObject = applicationObject;
			this.document = document;
		}

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

		#region Windows Form 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.checkBoxNewRegion = new System.Windows.Forms.CheckBox();
			this.textBoxNewRegion = new System.Windows.Forms.TextBox();
			this.buttonOK = new System.Windows.Forms.Button();
			this.buttonCancel = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.errorProvider = new System.Windows.Forms.ErrorProvider();
			this.listBoxTemplate = new System.Windows.Forms.ListBox();
			this.label2 = new System.Windows.Forms.Label();
			this.checkBoxAddToTemplates = new System.Windows.Forms.CheckBox();
			this._regionTree = new RegionsAddIn.RegionTree();
			this.SuspendLayout();
			// 
			// checkBoxNewRegion
			// 
			this.checkBoxNewRegion.Location = new System.Drawing.Point(8, 184);
			this.checkBoxNewRegion.Name = "checkBoxNewRegion";
			this.checkBoxNewRegion.Size = new System.Drawing.Size(168, 16);
			this.checkBoxNewRegion.TabIndex = 1;
			this.checkBoxNewRegion.Text = "Add new Region";
			this.checkBoxNewRegion.Click += new System.EventHandler(this.checkBoxNewRegion_Click);
			// 
			// textBoxNewRegion
			// 
			this.textBoxNewRegion.Enabled = false;
			this.textBoxNewRegion.Location = new System.Drawing.Point(8, 208);
			this.textBoxNewRegion.Name = "textBoxNewRegion";
			this.textBoxNewRegion.Size = new System.Drawing.Size(376, 20);
			this.textBoxNewRegion.TabIndex = 2;
			this.textBoxNewRegion.Text = "";
			// 
			// buttonOK
			// 
			this.buttonOK.DialogResult = System.Windows.Forms.DialogResult.OK;
			this.buttonOK.Location = new System.Drawing.Point(120, 240);
			this.buttonOK.Name = "buttonOK";
			this.buttonOK.TabIndex = 3;
			this.buttonOK.Text = "OK";
			this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
			// 
			// buttonCancel
			// 
			this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.buttonCancel.Location = new System.Drawing.Point(216, 240);
			this.buttonCancel.Name = "buttonCancel";
			this.buttonCancel.TabIndex = 4;
			this.buttonCancel.Text = "Cancel";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(8, 8);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(168, 16);
			this.label1.TabIndex = 5;
			this.label1.Text = "Existing Regions";
			// 
			// errorProvider
			// 
			this.errorProvider.ContainerControl = this;
			// 
			// listBoxTemplate
			// 
			this.listBoxTemplate.Enabled = false;
			this.listBoxTemplate.Location = new System.Drawing.Point(208, 24);
			this.listBoxTemplate.Name = "listBoxTemplate";
			this.listBoxTemplate.Size = new System.Drawing.Size(192, 147);
			this.listBoxTemplate.Sorted = true;
			this.listBoxTemplate.TabIndex = 6;
			this.listBoxTemplate.DoubleClick += new System.EventHandler(this.listBoxTemplate_DoubleClick);
			this.listBoxTemplate.MouseUp += new System.Windows.Forms.MouseEventHandler(this.listBoxTemplate_MouseUp);
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(208, 8);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(168, 16);
			this.label2.TabIndex = 7;
			this.label2.Text = "Templates";
			// 
			// checkBoxAddToTemplates
			// 
			this.checkBoxAddToTemplates.Location = new System.Drawing.Point(208, 184);
			this.checkBoxAddToTemplates.Name = "checkBoxAddToTemplates";
			this.checkBoxAddToTemplates.Size = new System.Drawing.Size(168, 16);
			this.checkBoxAddToTemplates.TabIndex = 8;
			this.checkBoxAddToTemplates.Text = "Add to templates";
			// 
			// _regionTree
			// 
			this._regionTree.ApplicationObject = null;
			this._regionTree.Location = new System.Drawing.Point(8, 24);
			this._regionTree.Name = "_regionTree";
			this._regionTree.Size = new System.Drawing.Size(192, 147);
			this._regionTree.TabIndex = 0;
			this._regionTree.TreeDoubleClick += new System.EventHandler(this._regionTree_DoubleClick);
			this._regionTree.TreeAfterSelect += new System.Windows.Forms.TreeViewEventHandler(this._regionTree_AfterSelect);
			// 
			// RegionsDialog
			// 
			this.AcceptButton = this.buttonOK;
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.CancelButton = this.buttonCancel;
			this.ClientSize = new System.Drawing.Size(410, 272);
			this.ControlBox = false;
			this.Controls.Add(this._regionTree);
			this.Controls.Add(this.checkBoxAddToTemplates);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.listBoxTemplate);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.buttonCancel);
			this.Controls.Add(this.buttonOK);
			this.Controls.Add(this.textBoxNewRegion);
			this.Controls.Add(this.checkBoxNewRegion);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.Name = "RegionsDialog";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
			this.Text = "Existing Regions Dialog";
			this.Load += new System.EventHandler(this.RegionsDialog_Load);
			this.ResumeLayout(false);

		}
		#endregion

		#region Properties

		/// <summary>
		/// RegionTree control for this dialog.
		/// </summary>
		public RegionTree RegionTree
		{
			get {return _regionTree;}
		}

		/// <summary>
		/// New region name, if supplied.
		/// </summary>
		public string RegionName
		{
			get {return textBoxNewRegion.Text;}
			set {textBoxNewRegion.Text = value;}
		}

		/// <summary>
		/// Target region to add selection to.
		/// </summary>
		public TreeItemTagData TargetRegion
		{
			get {return _targetRegion;}
		}

		#endregion
		
		/// <summary>
		/// OnLoad handler for dialog.
		/// </summary>
		private void RegionsDialog_Load(object sender, System.EventArgs e)
		{
			_regionTree.BuildTree(document);

			string templateDir = Application.StartupPath + "\\RegionsAddIn";
			DirectoryInfo di = new DirectoryInfo(templateDir);
			if(!di.Exists)
				Directory.CreateDirectory(templateDir);

			string templateFile = templateDir + "\\templates.txt";
			FileInfo fi = new FileInfo(templateFile);
			if(fi.Exists)
			{
				StreamReader sr = new StreamReader(templateFile);
				string buffer = sr.ReadLine();
				while(buffer != null)
				{
					this.listBoxTemplate.Items.Add(buffer);
					buffer = sr.ReadLine();
				}
				sr.Close();
			}

			_regionTree.TreeView.HideSelection = false;
		}

		/// <summary>
		/// Handler for checkbox change of state
		/// </summary>
		private void checkBoxNewRegion_Click(object sender, System.EventArgs e)
		{
			textBoxNewRegion.Enabled = checkBoxNewRegion.Checked;
			if(textBoxNewRegion.Enabled)
				textBoxNewRegion.Focus();
			else
				textBoxNewRegion.Text = string.Empty;
			listBoxTemplate.Enabled = checkBoxNewRegion.Checked;
		}

		/// <summary>
		/// Handler for OK button.
		/// </summary>
		private void buttonOK_Click(object sender, System.EventArgs e)
		{
			if(checkBoxNewRegion.Checked)
			{
				if(textBoxNewRegion.Text.Length == 0)
				{
					errorProvider.SetError(textBoxNewRegion, "Cannot be zero length");
					this.DialogResult = DialogResult.None;
					return;
				}
			}

			if(checkBoxAddToTemplates.Checked)
			{
				bool addTemplate = false;
				if(checkBoxNewRegion.Checked)
				{
					if(this.listBoxTemplate.Items.IndexOf(RegionName) == -1)
					{
						this.listBoxTemplate.Items.Add(RegionName);
						addTemplate = true;
					}
				}
				else
				{
					if(this.listBoxTemplate.Items.IndexOf(_regionTree.TreeView.SelectedNode.Text) == -1)
					{
						this.listBoxTemplate.Items.Add(_regionTree.TreeView.SelectedNode.Text);
						addTemplate = true;
					}
				}

				if(addTemplate)
				{
					string templateDir = Application.StartupPath + "\\RegionsAddIn";
					DirectoryInfo di = new DirectoryInfo(templateDir);
					if(!di.Exists)
						Directory.CreateDirectory(templateDir);

					string templateFile = templateDir + "\\templates.txt";
					StreamWriter sw = new StreamWriter(templateFile);
					for(int i = 0; i < this.listBoxTemplate.Items.Count; i++)
						sw.WriteLine(this.listBoxTemplate.Items[i]);
					sw.Close();
				}
			}

			if(((TreeItemTagData)_regionTree.TreeView.SelectedNode.Tag).IsRegion)
				_targetRegion = (TreeItemTagData)_regionTree.TreeView.SelectedNode.Tag;
			else
				_targetRegion = null;

			this.DialogResult = DialogResult.OK;
			this.Close();
		}

		/// <summary>
		/// Handler for tree selection changed event.
		/// </summary>
		private void _regionTree_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
		{
			if(_regionTree.SelectedNode != null)
			{
				if(_regionTree.SelectedNode.ForeColor != SystemColors.GrayText)
				{
					buttonOK.Enabled = true;
					checkBoxNewRegion.Enabled = true;
					checkBoxAddToTemplates.Enabled = true;
					_targetRegion = (TreeItemTagData)_regionTree.SelectedNode.Tag;
				}
				else
				{
					buttonOK.Enabled = false;
					checkBoxNewRegion.Enabled = false;
					checkBoxAddToTemplates.Enabled = false;
					textBoxNewRegion.Enabled = false;
					_targetRegion = null;
				}
			}
			else
			{
				buttonOK.Enabled = false;
				checkBoxNewRegion.Enabled = false;
				checkBoxAddToTemplates.Enabled = false;
			}
		}

		/// <summary>
		/// Handler for tree selection doubleclick event.
		/// </summary>
		private void _regionTree_DoubleClick(object sender, System.EventArgs e)
		{
			if(_regionTree.SelectedNode.ForeColor != SystemColors.GrayText)
			{
				this.buttonOK_Click(sender, e);
				this.DialogResult = DialogResult.OK;
				this.Close();
			}
		}

		/// <summary>
		/// Handler for template list doubleclick event.
		/// </summary>
		private void listBoxTemplate_DoubleClick(object sender, System.EventArgs e)
		{
			this.listBoxTemplate_MouseUp(sender, null);
			this.buttonOK_Click(sender, null);
		}

		/// <summary>
		/// Handler for template list mouseup event.
		/// </summary>
		private void listBoxTemplate_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
		{
			if (this.listBoxTemplate.Items[this.listBoxTemplate.SelectedIndex] != null)
			{
				this.textBoxNewRegion.Text = (string)(this.listBoxTemplate.Items[this.listBoxTemplate.SelectedIndex]);
			}
		}
	}
}