Source/AdvTree/Display/NodeSelectionDisplay.cs

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using System.Drawing;
using DevComponents.WinForms.Drawing;

namespace DevComponents.AdvTree.Display
{
	/// <summary>
	/// Represent class that paints selection around node.
	/// </summary>
	internal class NodeSelectionDisplay
	{
		public void PaintSelection(SelectionRendererEventArgs info)
		{
            if (info.SelectionBoxStyle == eSelectionStyle.HighlightCells)
                PaintHighlightCellsSelectionStyle(info);
            else if (info.SelectionBoxStyle == eSelectionStyle.FullRowSelect)
                PaintFullRowSelectSelectionStyle(info);
            else if (info.SelectionBoxStyle == eSelectionStyle.NodeMarker)
                PaintNodeMarkerSelectionStyle(info);
			
		}

        public void PaintHotTracking(SelectionRendererEventArgs info)
        {
            // Full row is just a rectangle with the background...
            Shape[] fullRowShapes = GetHotTrackingShapes();
            Graphics g = info.Graphics;
            Rectangle bounds = info.Bounds;
            bounds.Width--;
            bounds.Height--;
            foreach (Shape shape in fullRowShapes)
            {
                shape.Paint(g, bounds);
            }
        }

        private void PaintFullRowSelectSelectionStyle(SelectionRendererEventArgs info)
        {
            // Full row is just a rectangle with the background...
            Shape[] fullRowShapes = GetFullRowShapes(info.TreeActive);
            Graphics g = info.Graphics;
            Rectangle bounds = info.Bounds;
            //bounds.Width--;
            //bounds.Height--;

            foreach (Shape shape in fullRowShapes)
            {
                shape.Paint(g, bounds);
            }
        }

        Shape[] _FullRowShapes = null;
        private Shape[] GetFullRowShapes(bool treeActive)
        {
            if (_FullRowShapes == null)
            {
                _FullRowShapes = new Shape[1];
                _FullRowShapes[0] = new RectangleShape();
            }
            RectangleShape shape = (RectangleShape)_FullRowShapes[0];
            SelectionColorTable colors = treeActive ? _SelectionColors.FullRowSelect : _SelectionColors.FullRowSelectInactive;