moel@345: using System;
moel@345: using System.Collections.Generic;
moel@345: using System.Text;
moel@345: using System.Drawing;
moel@345: using System.Windows.Forms;
moel@345: using System.Reflection;
moel@345: using System.ComponentModel;
moel@345: 
moel@345: namespace Aga.Controls.Tree.NodeControls
moel@345: {
moel@345: 	public class NodeTextBox : BaseTextControl
moel@345: 	{
moel@345: 		private const int MinTextBoxWidth = 30;
moel@345: 
moel@345: 		public NodeTextBox()
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		protected override Size CalculateEditorSize(EditorContext context)
moel@345: 		{
moel@345: 			if (Parent.UseColumns)
moel@345: 				return context.Bounds.Size;
moel@345: 			else
moel@345: 			{
moel@345: 				Size size = GetLabelSize(context.CurrentNode, context.DrawContext, _label);
moel@345: 				int width = Math.Max(size.Width + Font.Height, MinTextBoxWidth); // reserve a place for new typed character
moel@345: 				return new Size(width, size.Height);
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		public override void KeyDown(KeyEventArgs args)
moel@345: 		{
moel@345: 			if (args.KeyCode == Keys.F2 && Parent.CurrentNode != null && EditEnabled)
moel@345: 			{
moel@345: 				args.Handled = true;
moel@345: 				BeginEdit();
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		protected override Control CreateEditor(TreeNodeAdv node)
moel@345: 		{
moel@345: 			TextBox textBox = CreateTextBox();
moel@345: 			textBox.TextAlign = TextAlign;
moel@345: 			textBox.Text = GetLabel(node);
moel@345: 			textBox.BorderStyle = BorderStyle.FixedSingle;
moel@345: 			textBox.TextChanged += EditorTextChanged;
moel@345: 			textBox.KeyDown += EditorKeyDown;
moel@345: 			_label = textBox.Text;
moel@345: 			SetEditControlProperties(textBox, node);
moel@345: 			return textBox;
moel@345: 		}
moel@345: 
moel@345: 		protected virtual TextBox CreateTextBox()
moel@345: 		{
moel@345: 			return new TextBox();
moel@345: 		}
moel@345: 
moel@345: 		protected override void DisposeEditor(Control editor)
moel@345: 		{
moel@345: 			var textBox = editor as TextBox;
moel@345: 			textBox.TextChanged -= EditorTextChanged;
moel@345: 			textBox.KeyDown -= EditorKeyDown;
moel@345: 		}
moel@345: 
moel@345: 		private void EditorKeyDown(object sender, KeyEventArgs e)
moel@345: 		{
moel@345: 			if (e.KeyCode == Keys.Escape)
moel@345: 				EndEdit(false);
moel@345: 			else if (e.KeyCode == Keys.Enter)
moel@345: 				EndEdit(true);
moel@345: 		}
moel@345: 
moel@345: 		private string _label;
moel@345: 		private void EditorTextChanged(object sender, EventArgs e)
moel@345: 		{
moel@345: 			var textBox = sender as TextBox;
moel@345: 			_label = textBox.Text;
moel@345: 			Parent.UpdateEditorBounds();
moel@345: 		}
moel@345: 
moel@345: 		protected override void DoApplyChanges(TreeNodeAdv node, Control editor)
moel@345: 		{
moel@345: 			var label = (editor as TextBox).Text;
moel@345: 			string oldLabel = GetLabel(node);
moel@345: 			if (oldLabel != label)
moel@345: 			{
moel@345: 				SetLabel(node, label);
moel@345: 				OnLabelChanged(node.Tag, oldLabel, label);
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		public override void Cut(Control control)
moel@345: 		{
moel@345: 			(control as TextBox).Cut();
moel@345: 		}
moel@345: 
moel@345: 		public override void Copy(Control control)
moel@345: 		{
moel@345: 			(control as TextBox).Copy();
moel@345: 		}
moel@345: 
moel@345: 		public override void Paste(Control control)
moel@345: 		{
moel@345: 			(control as TextBox).Paste();
moel@345: 		}
moel@345: 
moel@345: 		public override void Delete(Control control)
moel@345: 		{
moel@345: 			var textBox = control as TextBox;
moel@345: 			int len = Math.Max(textBox.SelectionLength, 1);
moel@345: 			if (textBox.SelectionStart < textBox.Text.Length)
moel@345: 			{
moel@345: 				int start = textBox.SelectionStart;
moel@345: 				textBox.Text = textBox.Text.Remove(textBox.SelectionStart, len);
moel@345: 				textBox.SelectionStart = start;
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		public event EventHandler<LabelEventArgs> LabelChanged;
moel@345: 		protected void OnLabelChanged(object subject, string oldLabel, string newLabel)
moel@345: 		{
moel@345: 			if (LabelChanged != null)
moel@345: 				LabelChanged(this, new LabelEventArgs(subject, oldLabel, newLabel));
moel@345: 		}
moel@345: 	}
moel@345: }