moel@345: using System;
moel@345: using System.Collections.Generic;
moel@345: using System.Text;
moel@345: using System.Windows.Forms;
moel@345: using System.Drawing;
moel@345: using System.ComponentModel;
moel@345: 
moel@345: namespace Aga.Controls.Tree.NodeControls
moel@345: {
moel@345: 	public abstract class EditableControl : InteractiveControl
moel@345: 	{
moel@345: 		private Timer _timer;
moel@345: 		private bool _editFlag;
moel@345: 
moel@345: 		#region Properties
moel@345: 
moel@345: 		private bool _editOnClick = false;
moel@345: 		[DefaultValue(false)]
moel@345: 		public bool EditOnClick
moel@345: 		{
moel@345: 			get { return _editOnClick; }
moel@345: 			set { _editOnClick = value; }
moel@345: 		}
moel@345: 
moel@345: 		#endregion
moel@345: 
moel@345: 		protected EditableControl()
moel@345: 		{
moel@345: 			_timer = new Timer();
moel@345: 			_timer.Interval = 500;
moel@345: 			_timer.Tick += new EventHandler(TimerTick);
moel@345: 		}
moel@345: 
moel@345: 		private void TimerTick(object sender, EventArgs e)
moel@345: 		{
moel@345: 			_timer.Stop();
moel@345: 			if (_editFlag)
moel@345: 				BeginEdit();
moel@345: 			_editFlag = false;
moel@345: 		}
moel@345: 
moel@345: 		public void SetEditorBounds(EditorContext context)
moel@345: 		{
moel@345: 			Size size = CalculateEditorSize(context);
moel@345: 			context.Editor.Bounds = new Rectangle(context.Bounds.X, context.Bounds.Y,
moel@345: 				Math.Min(size.Width, context.Bounds.Width),
moel@345: 				Math.Min(size.Height, Parent.ClientSize.Height - context.Bounds.Y)
moel@345: 			);
moel@345: 		}
moel@345: 
moel@345: 		protected abstract Size CalculateEditorSize(EditorContext context);
moel@345: 
moel@345: 		protected virtual bool CanEdit(TreeNodeAdv node)
moel@345: 		{
moel@345: 			return (node.Tag != null) && IsEditEnabled(node);
moel@345: 		}
moel@345: 
moel@345: 		public void BeginEdit()
moel@345: 		{
moel@345: 			if (Parent != null && Parent.CurrentNode != null && CanEdit(Parent.CurrentNode))
moel@345: 			{
moel@345: 				CancelEventArgs args = new CancelEventArgs();
moel@345: 				OnEditorShowing(args);
moel@345: 				if (!args.Cancel)
moel@345: 				{
moel@345: 					var editor = CreateEditor(Parent.CurrentNode);
moel@345: 					Parent.DisplayEditor(editor, this);
moel@345: 				}
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		public void EndEdit(bool applyChanges)
moel@345: 		{
moel@345: 			if (Parent != null)
moel@345: 				if (Parent.HideEditor(applyChanges))
moel@345: 					OnEditorHided();
moel@345: 		}
moel@345: 
moel@345: 		public virtual void UpdateEditor(Control control)
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		internal void ApplyChanges(TreeNodeAdv node, Control editor)
moel@345: 		{
moel@345: 			DoApplyChanges(node, editor);
moel@345: 			OnChangesApplied();
moel@345: 		}
moel@345: 
moel@345: 		internal void DoDisposeEditor(Control editor)
moel@345: 		{
moel@345: 			DisposeEditor(editor);
moel@345: 		}
moel@345: 
moel@345: 		protected abstract void DoApplyChanges(TreeNodeAdv node, Control editor);
moel@345: 
moel@345: 		protected abstract Control CreateEditor(TreeNodeAdv node);
moel@345: 
moel@345: 		protected abstract void DisposeEditor(Control editor);
moel@345: 
moel@345: 		public virtual void Cut(Control control)
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		public virtual void Copy(Control control)
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		public virtual void Paste(Control control)
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		public virtual void Delete(Control control)
moel@345: 		{
moel@345: 		}
moel@345: 
moel@345: 		public override void MouseDown(TreeNodeAdvMouseEventArgs args)
moel@345: 		{
moel@345: 			_editFlag = (!EditOnClick && args.Button == MouseButtons.Left
moel@345: 				&& args.ModifierKeys == Keys.None && args.Node.IsSelected);
moel@345: 		}
moel@345: 
moel@345: 		public override void MouseUp(TreeNodeAdvMouseEventArgs args)
moel@345: 		{
moel@345: 			if (args.Node.IsSelected)
moel@345: 			{
moel@345: 				if (EditOnClick && args.Button == MouseButtons.Left && args.ModifierKeys == Keys.None)
moel@345: 				{
moel@345: 					Parent.ItemDragMode = false;
moel@345: 					BeginEdit();
moel@345: 					args.Handled = true;
moel@345: 				}
moel@345: 				else if (_editFlag)// && args.Node.IsSelected)
moel@345: 					_timer.Start();
moel@345: 			}
moel@345: 		}
moel@345: 
moel@345: 		public override void MouseDoubleClick(TreeNodeAdvMouseEventArgs args)
moel@345: 		{
moel@345: 			_editFlag = false;
moel@345: 			_timer.Stop();
moel@345: 		}
moel@345: 
moel@345: 		protected override void Dispose(bool disposing)
moel@345: 		{
moel@345: 			base.Dispose(disposing);
moel@345: 			if (disposing)
moel@345: 				_timer.Dispose();
moel@345: 		}
moel@345: 
moel@345: 		#region Events
moel@345: 
moel@345: 		public event CancelEventHandler EditorShowing;
moel@345: 		protected void OnEditorShowing(CancelEventArgs args)
moel@345: 		{
moel@345: 			if (EditorShowing != null)
moel@345: 				EditorShowing(this, args);
moel@345: 		}
moel@345: 
moel@345: 		public event EventHandler EditorHided;
moel@345: 		protected void OnEditorHided()
moel@345: 		{
moel@345: 			if (EditorHided != null)
moel@345: 				EditorHided(this, EventArgs.Empty);
moel@345: 		}
moel@345: 
moel@345: 		public event EventHandler ChangesApplied;
moel@345: 		protected void OnChangesApplied()
moel@345: 		{
moel@345: 			if (ChangesApplied != null)
moel@345: 				ChangesApplied(this, EventArgs.Empty);
moel@345: 		}
moel@345: 
moel@345: 		#endregion
moel@345: 	}
moel@345: }