types, and mColGroups. Besides being cleaner and easier to maintain, this should speed some things up slightly
because I don't have to check display types every time I iterate through colgroup frames. I *know*
mColGroups contains only colgroups. I might do the same for rowgroups (that is, keep unknown frame types
in their own list as well.) But that's optional.
the inner table frame used to incorrectly create actual content objects for anonymous colgroups and cols. Now,
it just creates frames as appropriate, not content. To support this, I added some pseudo style contexts and
related atoms.
1. width=0 is treated as width=auto, not width=min
2. empty cells <td></td> are assigned a width of (2*borderWidth + 2*cellspacing + 3) pixels
The "3" is a fudge factor added by Nav and IE.
the problem was the way table layout apportioned height from a rowspanning cell.
Now, we do 2 things correctly:
1) we handle rows with rowspanning cells and no other cells.
2) we divide the height of a rowspanning cell proportionately to the rows spanned, where the proportion is defined by
the max height of a cell in that row that has no effective rowspan.
the partial fix for bug 1431 has to do with dividing width between percent-width and fixed-width columns in the same
table. You won't see any better layout for this page (ww.boston.com) as a result of the code I added. The rest of this
fix is a bit risky, so I'm waiting until after stability push.
and/or to the width attribute on the table itself), the rule is to try to give the column the largest value
assigned to it by any cell intersecting that column.
Separate storage is maintained for a column's natural desired width (width from any source other than a cell
with a colspan) and the maximum contribution to the column's width from any cell with a colspan.
not like specified width (which you might logically expect since all column widths are specified, but sadly that's
not the way Nav or IE interprets this case. )
nsTableFrame's use of IsPseudoFrame has been removed.
ables were not correctly applying the min width of the content of cells
that had col spans in some cases. In this case, the nested table was specified
as being too narrow for the content. There were 4 columns each with width=25%
in the first row, and in the next row a single cell with colspan=4 and whose
content min size was wider than the specified table width.
now autowidth columns as assigned a width starting from their minimum. The remaining
space is proportionately divided among them, never allowing a column to go over its max (for
autowidth tables only.)
the layout strategy can now query the outer frame for the caption min width,
and use it to expand the table if necessary
did some related cleanup while I was in there.
moved *IsSpannedInto and *HasSpanningCells into cellmap, giving us the oppurtunity
to easily cache results if we want. These methods are still accessed through nsTableFrame.
changed nsTableFrame::GetCellAt to nsTableFrame::GetCellFrameAt to make it more clear what
the method returns: a frame, not content.
these fixes are for nested tables with percent widths, for tables including both rowspan and colspan,
and for tables with only a single column.
some rounding errors were eliminated.
more debugging output, and some new assertions.
1) sometimes we were adding 1 too many pixels in constrained tables
2) sometimes we were using the wrong value for the max width as an input to constrained tables
cells with colspans and specified widths divide their width provisionally between the columns they span. This provisional division is ammended by any cell in any of the effected columns that:
1) has a colspan=1, and
2) has a width specified
the widths of all other columns must be adjusted for cells like these. Further complicating matters is that it seems <faith> that if multiple colspanning cells intersect a column and each has a width
specified such that the column would have a different width depending on which is used, only the first such cell is used </faith>. I can neither confirm nor deny this reading the mozilla code.
I also taught the cell map how to deal with this situation:
colspan=1 | colspan=2 | colspan=1
colspan=1 | colspan=2 | colspan=1
This table "really" has 4 columns, but the middle cells are treated as if they have no colspan.
Trust me, it matters. The original colspan attributes can't simply be thrown away because Mr. DOM
could come along at any time and add/remove a cell that would make them important.
* fixes sample6, yahoo resizing
* added BasicTableLayoutStrategy::ColIsSpecifiedAsMinimumWidth helper function,
which tells us if the given column has a width attribute that means "make me as small as possible"
* nsTableFrame methods now no longer use mCellMap directly, they ask for it from
GetCellMap which gets the cell map from the first-in-flow. Only the first-in-flow has a
cell map because the cellmap refers to the table as a single object, not to each table frame.
* Likewise, continuing table frames do not call BalanceColumnWidths or SetTableWidth
which are "global" operations. Responsibility for these lies with the first-in-flow.
fixed the following bugs: 312653 312656 312655
the fixes were:
1. cells now inherit their bgcolor from the row, if available. This is the
Nav4 way of drawing row bgcolor, rather than having the row paint its own bgcolor. (Troy, I intend to make this conditional
based on the compatibility mode)
2. colspans across cols that are all specified width no longer try to proportionately
divide the width of the span between the cols. see http://www.city.net (now it's really fixed, without breaking nested tables in
constrained situations.) A happy side effect is nested tables in general behave better when constrained.
3. min table sizes are fixed, so min width changes to content now effect the
table correctly during incremental reflow. This fixes the table layout portion of the bugs on the http://www.aol.com/corp tree.
Rick will check in the other half of this fix soon. Until then, don't expect to see much improvement.
4. fixed bug 312799. Table cell now always reserve at least the maxElementSize
of its content, fixing problems when desiredSize<maxElementSize
(a nested table with specified width) inside (an auto-width column)
inside (a specified-width table). Got that?
The problem was that we we not setting state correctly during incremental reflow
when the image returned its proper metrics after giving default metrics that
were for its ALT text.
karnaze%netscape.com
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