External/Aga.Controls/Tree/Input/InputWithShift.cs
changeset 345 0c551e8818e0
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/External/Aga.Controls/Tree/Input/InputWithShift.cs	Sun May 27 15:16:19 2012 +0000
     1.3 @@ -0,0 +1,69 @@
     1.4 +using System;
     1.5 +using System.Collections.Generic;
     1.6 +using System.Text;
     1.7 +
     1.8 +namespace Aga.Controls.Tree
     1.9 +{
    1.10 +	internal class InputWithShift: NormalInputState
    1.11 +	{
    1.12 +		public InputWithShift(TreeViewAdv tree): base(tree)
    1.13 +		{
    1.14 +		}
    1.15 +
    1.16 +		protected override void FocusRow(TreeNodeAdv node)
    1.17 +		{
    1.18 +			Tree.SuspendSelectionEvent = true;
    1.19 +			try
    1.20 +			{
    1.21 +				if (Tree.SelectionMode == TreeSelectionMode.Single || Tree.SelectionStart == null)
    1.22 +					base.FocusRow(node);
    1.23 +				else if (CanSelect(node))
    1.24 +				{
    1.25 +					SelectAllFromStart(node);
    1.26 +					Tree.CurrentNode = node;
    1.27 +					Tree.ScrollTo(node);
    1.28 +				}
    1.29 +			}
    1.30 +			finally
    1.31 +			{
    1.32 +				Tree.SuspendSelectionEvent = false;
    1.33 +			}
    1.34 +		}
    1.35 +
    1.36 +		protected override void DoMouseOperation(TreeNodeAdvMouseEventArgs args)
    1.37 +		{
    1.38 +			if (Tree.SelectionMode == TreeSelectionMode.Single || Tree.SelectionStart == null)
    1.39 +			{
    1.40 +				base.DoMouseOperation(args);
    1.41 +			}
    1.42 +			else if (CanSelect(args.Node))
    1.43 +			{
    1.44 +				Tree.SuspendSelectionEvent = true;
    1.45 +				try
    1.46 +				{
    1.47 +					SelectAllFromStart(args.Node);
    1.48 +				}
    1.49 +				finally
    1.50 +				{
    1.51 +					Tree.SuspendSelectionEvent = false;
    1.52 +				}
    1.53 +			}
    1.54 +		}
    1.55 +
    1.56 +		protected override void MouseDownAtEmptySpace(TreeNodeAdvMouseEventArgs args)
    1.57 +		{
    1.58 +		}
    1.59 +
    1.60 +		private void SelectAllFromStart(TreeNodeAdv node)
    1.61 +		{
    1.62 +			Tree.ClearSelectionInternal();
    1.63 +			int a = node.Row;
    1.64 +			int b = Tree.SelectionStart.Row;
    1.65 +			for (int i = Math.Min(a, b); i <= Math.Max(a, b); i++)
    1.66 +			{
    1.67 +				if (Tree.SelectionMode == TreeSelectionMode.Multi || Tree.RowMap[i].Parent == node.Parent)
    1.68 +					Tree.RowMap[i].IsSelected = true;
    1.69 +			}
    1.70 +		}
    1.71 +	}
    1.72 +}