//-----------------------------------------------------------------------------------------
void RecurseDrawGraph(Graphics _graphics, SpaceGraphItem item, Rectangle R, bool asroot, UInt32 flags)
{
//if (m_callback != NULL) m_callback->TreemapDrawingCallback();
item.TmiSetRectangle(R);
if (R.IsEmpty)
{
return;
}
int gridWidth = m_options.Grid ? 1 : 0;
if (item.TmiIsLeaf())
{
RenderLeaf(_graphics, item);
}
else
{
DrawChildren(_graphics, item, flags);
}
}
//-----------------------------------------------------------------------------------------
public SpaceGraphItem FindItemByPoint(SpaceGraphItem item, Point point)
{
Rectangle R = item.TmiGetRectangle();
if (!R.Contains(point))
{
return(null);
}
SpaceGraphItem result = null;
int gridWidth = m_options.Grid ? 1: 0;
if (R.Width <= gridWidth || R.Height <= gridWidth)
{
result = item;
}
else if (item.TmiIsLeaf())
{
result = item;
}
else
{
for (int i = 0; i < item.TmiGetChildrenCount(); i++)
{
SpaceGraphItem child = item.TmiGetChild(i);
if (child.TmiGetRectangle().Contains(point))
{
result = FindItemByPoint(child, point);
break;
}
}
}
if (result == null)
{
result = item;
}
return(result);
}