public override void OnMouseMove(Point point)
{
Point subItemPoint;
GridItemBase subItem = CurrentItem(point, out subItemPoint);
if (mouseTrackedItem != subItem)
{
if (mouseTrackedItem != null)
{
mouseTrackedItem.OnLeave();
}
mouseTrackedItem = subItem;
if (subItem != null)
{
subItem.OnEnter(subItemPoint);
}
}
if (mouseTrackedItem != null)
{
mouseTrackedItem.OnMouseMove(subItemPoint);
}
}
internal void OnMouseMove(Point point)
{
if (HasLeftExpander)
{
Image image = Expanded ? ExpandedImage : ShrunkenImage;
Rectangle r = new Rectangle(image.Width, image.Height, image.Width, image.Height);
Cursor = r.Contains(point) ? Cursors.Hand : Cursors.Default;
}
// Make sure only one is valid
System.Diagnostics.Trace.Assert(LastItem == null || LastSubRow == null);
Point p;
if (point.Y > RowHeight)
{
if (LastItem != null)
{
LastItem.OnLeave();
LastItem = null;
}
GridRow row = FindRowFromPoint(point, out p);
if (row != null && LastSubRow == row)
{
LastSubRow.OnMouseMove(p);
return;
}
if (LastSubRow != null)
{
LastSubRow.OnLeave();
}
LastSubRow = row;
if (LastSubRow != null)
{
LastSubRow.OnEnter(p);
}
}
else
{
if (LastSubRow != null)
{
LastSubRow.OnLeave();
LastSubRow = null;
}
GridItemBase item = FindItemFromPoint(point, out p);
if (item != null && LastItem == item)
{
LastItem.OnMouseMove(p);
return;
}
if (LastItem != null)
{
LastItem.OnLeave();
}
LastItem = item;
if (LastItem != null)
{
LastItem.OnEnter(p);
}
}
}
