/// <summary>
/// Draws the data of a tree node at the specified location.</summary>
/// <param name="node">The tree control's node whose data is to be drawn</param>
/// <param name="g">The current GDI+ graphics object</param>
/// <param name="x">The x-coordinate of the upper-left corner of the node label</param>
/// <param name="y">The y-coordinate of the upper-left corner of the node label</param>
public override void DrawData(TreeControl.Node node, Graphics g, int x, int y)
{
var treeListControl = node.TreeControl as TreeListControl;
ItemInfo info = new WinFormsItemInfo();
m_itemView.GetInfo(node.Tag, info);
if (info.Properties.Length == 0)
{
return;
}
Region oldClip = g.Clip;
//UpdateColumnWidths(node, info, g);
int xOffset = treeListControl.TreeWidth;
for (int i = 0; i < info.Properties.Length; ++i)
{
var dataEditor = info.Properties[i] as DataEditor;
if (dataEditor != null) // show object data details in columns
{
if (TrackingEditor != null && (TrackingEditor.Owner == node.Tag) &&
(TrackingEditor.Name == dataEditor.Name))
{
dataEditor = TrackingEditor;
}
var clip = new Rectangle(xOffset, y, treeListControl.Columns[i].ActualWidth, treeListControl.GetRowHeight(node));
if (i == info.Properties.Length - 1) // extends last column
{
clip.Width = node.TreeControl.ActualClientSize.Width - xOffset;
}
g.SetClip(clip);
dataEditor.PaintValue(g, clip);
}
xOffset += treeListControl.Columns[i].ActualWidth;
}
if (node.Selected)
{
g.SetClip(new Rectangle(0, y, treeListControl.Width + 1, node.LabelHeight + 1));
g.DrawRectangle(s_BorderPen, 0, y, treeListControl.Width, node.LabelHeight);
}
g.Clip = oldClip;
}
/// <summary>
/// Get the data editor hit by point p; also set edit mode if the editor supports multiple controls.</summary>
/// <param name="node">The node</param>
/// <param name="p">The point</param>
/// <returns>Data editor hit by point</returns>
internal DataEditor GetDataEditor(TreeControl.Node node, Point p)
{
var treeListControl = node.TreeControl as TreeListControl;
ItemInfo info = new WinFormsItemInfo();
treeListControl.TreeListItemRenderer.ItemView.GetInfo(node.Tag, info);
if (info.Properties.Length != treeListControl.Columns.Count)
{
return(null);
}
int left = treeListControl.TreeWidth;
for (int i = 0; i < treeListControl.Columns.Count; ++i)
{
var column = treeListControl.Columns[i];
if (p.X >= left && p.X <= left + column.ActualWidth)
{
var dataEditor = info.Properties[i] as DataEditor;
if (dataEditor != null)
{
foreach (NodeLayoutInfo nodeLayout in NodeLayout)
{
if (nodeLayout.Node == node)
{
dataEditor.TextBox = m_editTextBox;
dataEditor.Bounds = GetEditArea(nodeLayout, dataEditor);
dataEditor.SetEditingMode(p);
break;
}
}
}
return(dataEditor);
}
left += column.ActualWidth;
}
return(null);
}