Tables

Tables, the last big piece of presentation markup (<mtable>) are working fairly well now, good enough for a 0.1 release! Table layout is difficult, not because it is hard to layout cells in a grid, but because there are many possible permutations for how column width should be divided. The columnwidth attribute specifies wether a column should have a fixed width (this is the easy part), or if it should be the size of the max cell width in that colum, or wether it should be some percentage of the total table width. This is problematic because the column contributes to the table width, if the table width is not specified. The row height calculation is much simpler, because all rows are sized to the maximum cell height and depth in that row.

So, here are some screenshots of tables:

Here is an example showing row height fitting, and vertical cell alignment. The default cell orientation is to be on the baseline of a row, but they can also be aligned to the top, bottom, or center of a row. On the left is the mathml rendering control, and on the right is the reference rendering from the w3c mathml test suite.

 

source mathml for this screenshot