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.
table frames no longer assume they are n levels below the inner table frame
table frames no longer assume their child frames are always the expected type of
frame. Now they check the display type and use that as sufficient proof that the frame
is of the right type. This implies a heavy reliance on the frame construction code to do
the right thing and always stamp out the right kind of frame for a given display type.
from their respective InitalReflow() methods.
table-layout=fixed now completely skips pass1 reflow and doesn't require maxElementSize
information, saving a tremendous amount of time during initial reflow.
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.
nsHTMLAtoms.cpp,h added some HTML 4 strings for tables
nsHTMLParts.h added constructors for new table content classes
nsGenericHTMLElement.cpp,h added table frame creation, common table attribute parsing
nsHTMLTable*Element.cpp these are the new table content classes
nsHTMLContentSink.cpp enabled the new content and removed the old
nsHTMLStyleSheet.cpp fixed the table style optimizations to work with new content
nsTable*Frame.cpp these work with the new 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
aFilter is useful for determining if a frame should output itself during
a List(). In any event, the children of the frame are always processed.
added nsIListFilter, an interface for any object that wants to act like a filter for frame dumps
added static NS_LAYOUT nsIListFilter * GetFilter(nsString *aFilterName);
currently, only TableListFilter implements nsIListFilter.
in response to List(...TableListFilter), the frame model is dumped in a way that is useful
for table layout regression testing. Currently this is controlled by command line switches on the viewer app.
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.
