Source/AdvTree/Layout/NodeTreeLayout.cs

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using System.Collections;
using System.Drawing;
using System.Windows.Forms;
using System;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using DevComponents.DotNetBar;

namespace DevComponents.AdvTree.Layout
{
	/// <summary>
	/// Summary description for NodeTreeLayout.
	/// </summary>
	internal class NodeTreeLayout:NodeLayout
	{
		//private bool m_LayoutPerformed=false;

		public NodeTreeLayout(AdvTree treeControl, Rectangle clientArea):base(treeControl,clientArea)
		{
			//m_ExpandAreaWidth=16;
			//m_ExpandPartSize=new Size(9,9);
		}

        public override void UpdateTopLevelColumnsWidth()
        {
            if (this.Tree.Columns.Count > 0)
            {
                Rectangle columnsBounds = DevComponents.DotNetBar.ElementStyleLayout.GetInnerRect(this.Tree.BackgroundStyle, this.Tree.ClientRectangle);
                if (this.Tree.VScrollBar != null) columnsBounds.Width -= this.Tree.VScrollBar.Width;
                columnsBounds.Height = this.Tree.Columns.Bounds.Height;
                if(this.Tree.Columns.Bounds.Width<columnsBounds.Width)
                    this.Tree.Columns.SetBounds(columnsBounds);
            }
        }

		public override void PerformLayout()
		{
			this.PrepareStyles();
            Rectangle area = Rectangle.Empty;
			Graphics g=this.GetGraphics();
            SmoothingMode sm = g.SmoothingMode;
            TextRenderingHint th = g.TextRenderingHint;
            if (m_Tree.AntiAlias)
            {
                g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
                //g.TextRenderingHint = DisplayHelp.AntiAliasTextRenderingHint;
            }

            NodeLayoutContextInfo layoutInfo = GetDefaultNodeLayoutContextInfo(g);
            layoutInfo.ExpandPartAlignedLeft = true;
            layoutInfo.Left = ClientArea.X;
            layoutInfo.Top = ClientArea.Y;

            CellLayout cellLayout = this.GetCellLayout();
            cellLayout.ResetCheckBoxSize();
            if (this.Tree.CheckBoxImageChecked != null)
                cellLayout.CheckBoxSize = this.Tree.CheckBoxImageChecked.Size;

            LayoutTopLevelColumns(layoutInfo);