1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/External/Aga.Controls/Tree/NodeControls/NodePlusMinus.cs	Sun May 27 15:16:19 2012 +0000
     1.3 @@ -0,0 +1,94 @@
     1.4 +using System;
     1.5 +using System.Collections.Generic;
     1.6 +using System.Text;
     1.7 +using System.Drawing;
     1.8 +using Aga.Controls.Properties;
     1.9 +using System.Windows.Forms;
    1.10 +using System.Windows.Forms.VisualStyles;
    1.11 +
    1.12 +namespace Aga.Controls.Tree.NodeControls
    1.13 +{
    1.14 +	internal class NodePlusMinus : NodeControl
    1.15 +	{
    1.16 +		public const int ImageSize = 9;
    1.17 +		public const int Width = 16;
    1.18 +		private Bitmap _plus;
    1.19 +		private Bitmap _minus;
    1.20 +
    1.21 +		private VisualStyleRenderer _openedRenderer;
    1.22 +		private VisualStyleRenderer OpenedRenderer
    1.23 +		{
    1.24 +			get
    1.25 +			{
    1.26 +				if (_openedRenderer == null)
    1.27 +					_openedRenderer = new VisualStyleRenderer(VisualStyleElement.TreeView.Glyph.Opened);
    1.28 +				return _openedRenderer;
    1.29 +
    1.30 +			}
    1.31 +		}
    1.32 +
    1.33 +		private VisualStyleRenderer _closedRenderer;
    1.34 +		private VisualStyleRenderer ClosedRenderer
    1.35 +		{
    1.36 +			get
    1.37 +			{
    1.38 +				if (_closedRenderer == null)
    1.39 +					_closedRenderer = new VisualStyleRenderer(VisualStyleElement.TreeView.Glyph.Closed);
    1.40 +				return _closedRenderer;
    1.41 +			}
    1.42 +		}
    1.43 +
    1.44 +		public NodePlusMinus()
    1.45 +		{
    1.46 +			_plus = Resources.plus;
    1.47 +			_minus = Resources.minus;
    1.48 +		}
    1.49 +
    1.50 +		public override Size MeasureSize(TreeNodeAdv node, DrawContext context)
    1.51 +		{
    1.52 +			return new Size(Width, Width);
    1.53 +		}
    1.54 +
    1.55 +		public override void Draw(TreeNodeAdv node, DrawContext context)
    1.56 +		{
    1.57 +			if (node.CanExpand)
    1.58 +			{
    1.59 +				Rectangle r = context.Bounds;
    1.60 +				int dy = (int)Math.Round((float)(r.Height - ImageSize) / 2);
    1.61 +				if (Application.RenderWithVisualStyles)
    1.62 +				{
    1.63 +					VisualStyleRenderer renderer;
    1.64 +					if (node.IsExpanded)
    1.65 +						renderer = OpenedRenderer;
    1.66 +					else
    1.67 +						renderer = ClosedRenderer;
    1.68 +					renderer.DrawBackground(context.Graphics, new Rectangle(r.X, r.Y + dy, ImageSize, ImageSize));
    1.69 +				}
    1.70 +				else
    1.71 +				{
    1.72 +					Image img;
    1.73 +					if (node.IsExpanded)
    1.74 +						img = _minus;
    1.75 +					else
    1.76 +						img = _plus;
    1.77 +					context.Graphics.DrawImageUnscaled(img, new Point(r.X, r.Y + dy));
    1.78 +				}
    1.79 +			}
    1.80 +		}
    1.81 +
    1.82 +		public override void MouseDown(TreeNodeAdvMouseEventArgs args)
    1.83 +		{
    1.84 +			if (args.Button == MouseButtons.Left)
    1.85 +			{
    1.86 +				args.Handled = true;
    1.87 +				if (args.Node.CanExpand)
    1.88 +					args.Node.IsExpanded = !args.Node.IsExpanded;
    1.89 +			}
    1.90 +		}
    1.91 +
    1.92 +		public override void MouseDoubleClick(TreeNodeAdvMouseEventArgs args)
    1.93 +		{
    1.94 +			args.Handled = true; // Supress expand/collapse when double click on plus/minus
    1.95 +		}
    1.96 +	}
    1.97 +}