OpenHardwareMonitor-retired: External/Aga.Controls/Tree/TreeViewAdv.Editor.cs@5715aefd2bcc

     1 using System;

     2 using System.Collections.Generic;

     3 using System.Text;

     4 using System.Windows.Forms;

     5 using Aga.Controls.Tree.NodeControls;

     6 using System.Drawing;

     8 namespace Aga.Controls.Tree

9 {

    10 	partial class TreeViewAdv

    11 	{

    12 		private TreeNodeAdv _editingNode;

    14 		public EditableControl CurrentEditorOwner { get; private set; }

    15 		public Control CurrentEditor { get; private set; }

    17 		public void HideEditor()

    18 		{

    19 			if (CurrentEditorOwner != null)

    20 				CurrentEditorOwner.EndEdit(false);

    21 		}

    23 		internal void DisplayEditor(Control editor, EditableControl owner)

    24 		{

    25 			if (editor == null || owner == null || CurrentNode == null)

    26 				throw new ArgumentNullException();

    28 			HideEditor(false);

    30 			CurrentEditor = editor;

    31 			CurrentEditorOwner = owner;

    32 			_editingNode = CurrentNode;

    34 			editor.Validating += EditorValidating;

    35 			UpdateEditorBounds();

    36 			UpdateView();

    37 			editor.Parent = this;

    38 			editor.Focus();

    39 			owner.UpdateEditor(editor);

    40 		}

    42 		internal bool HideEditor(bool applyChanges)

    43 		{

    44 			if (CurrentEditor != null)

    45 			{

    46 				if (applyChanges)

    47 				{

    48 					if (!ApplyChanges())

    49 						return false;

    50 				}

    52 				//Check once more if editor was closed in ApplyChanges

    53 				if (CurrentEditor != null)

    54 				{

    55 					CurrentEditor.Validating -= EditorValidating;

    56 					CurrentEditorOwner.DoDisposeEditor(CurrentEditor);

    58 					CurrentEditor.Parent = null;

    59 					CurrentEditor.Dispose();

    61 					CurrentEditor = null;

    62 					CurrentEditorOwner = null;

    63 					_editingNode = null;

    64 				}

    65 			}

    66 			return true;

    67 		}

    69 		private bool ApplyChanges()

    70 		{

    71 			try

    72 			{

    73 				CurrentEditorOwner.ApplyChanges(_editingNode, CurrentEditor);

    74 				_errorProvider.Clear();

    75 				return true;

    76 			}

    77 			catch (ArgumentException ex)

    78 			{

    79 				_errorProvider.SetError(CurrentEditor, ex.Message);

    80 				/*CurrentEditor.Validating -= EditorValidating;

    81 				MessageBox.Show(this, ex.Message, "Value is not valid", MessageBoxButtons.OK, MessageBoxIcon.Warning);

    82 				CurrentEditor.Focus();

    83 				CurrentEditor.Validating += EditorValidating;*/

    84 				return false;

    85 			}

    86 		}

    88 		void EditorValidating(object sender, System.ComponentModel.CancelEventArgs e)

    89 		{

    90 			e.Cancel = !ApplyChanges();

    91 		}

    93 		public void UpdateEditorBounds()

    94 		{

    95 			if (CurrentEditor != null)

    96 			{

    97 				EditorContext context = new EditorContext();

    98 				context.Owner = CurrentEditorOwner;

    99 				context.CurrentNode = CurrentNode;

   100 				context.Editor = CurrentEditor;

   101 				context.DrawContext = _measureContext;

   102 				SetEditorBounds(context);

   103 			}

   104 		}

   106 		private void SetEditorBounds(EditorContext context)

   107 		{

   108 			foreach (NodeControlInfo info in GetNodeControls(context.CurrentNode))

   109 			{

   110 				if (context.Owner == info.Control && info.Control is EditableControl)

   111 				{

   112 					Point p = info.Bounds.Location;

   113 					p.X += info.Control.LeftMargin;

   114 					p.X -= OffsetX;

   115 					p.Y -= (_rowLayout.GetRowBounds(FirstVisibleRow).Y - ColumnHeaderHeight);

   116 					int width = DisplayRectangle.Width - p.X;

   117 					if (UseColumns && info.Control.ParentColumn != null && Columns.Contains(info.Control.ParentColumn))

   118 					{

   119 						Rectangle rect = GetColumnBounds(info.Control.ParentColumn.Index);

   120 						width = rect.Right - OffsetX - p.X;

   121 					}

   122 					context.Bounds = new Rectangle(p.X, p.Y, width, info.Bounds.Height);

   123 					((EditableControl)info.Control).SetEditorBounds(context);

   124 					return;

   125 				}

   126 			}

   127 		}

   129 		private Rectangle GetColumnBounds(int column)

   130 		{

   131 			int x = 0;

   132 			for (int i = 0; i < Columns.Count; i++)

   133 			{

   134 				if (Columns[i].IsVisible)

   135 				{

   136 					if (i < column)

   137 						x += Columns[i].Width;

   138 					else

   139 						return new Rectangle(x, 0, Columns[i].Width, 0);

   140 				}

   141 			}

   142 			return Rectangle.Empty;

   143 		}

   144 	}

   145 }

author	sl
	Thu, 01 Jan 2015 23:35:49 +0100
changeset 405	5715aefd2bcc
permissions	-rw-r--r--