On May 20, 2010, at 3:07 PM, David Hyatt wrote: > If we could properly detect those degenerate cases, then you could probably > get away with binary search, but until we do that, I don't think you can.
Here's an example: <STYLE> TD:hover { color: green } </STYLE > <TABLE border="1"> <TR><TD>1 <TD>2 <TD>3 <TR><TD>4 <TD rowspan="2">5 <TD>6 <TR><TD colspan="2">7 <TD>9 </TABLE> In this example, cell 5 and cell 7 actually overlap and share a position in the grid. You can see that hit testing works properly and gives cell 7 precedence over cell 5 (e.g., if you're in overlapping background areas of the cell, then cell 7 wins).
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