[haiku-bugs] Re: [Haiku] #6979: Layout API bugs in Network
- From: "yourpalal" <trac@xxxxxxxxxxxx>
- Date: Fri, 08 Apr 2011 21:45:03 -0000
#6979: Layout API bugs in Network
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Reporter: axeld | Owner: yourpalal
Type: bug | Status: in-progress
Priority: normal | Milestone: R1
Component: Kits/Interface Kit | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking: 5524
Has a Patch: 0 | Platform: All
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Changes (by yourpalal):
* status: assigned => in-progress
* blocking: => 5524
Comment:
After looking into this, I think these two issues are symptoms of a larger
one. Basically, in a BGridLayout, empty rows/cols are given no special
consideration. Without items adding any constraints to a row or column,
the max size for that row/column defaults to B_SIZE_UNLIMITED, which means
that it will soak up any extra space in the layout (which is why the row
isn't collapsing when the BMenuField is hidden). Also, empty rows and
columns still have spacing applied, because they are not considered to be
special.
What I'm thinking is to catch empty rows and columns (in
BTwoDimensionalLayout) and basically discard them this means for layout
purposes, they would take up no space, and not add any spacing. This
situation is complicated a bit by the
BTwoDimensionalLayout::AlignLayoutWith() feature, but when a layout is
aligned with another, this would be disabled (maybe if both have the same
empty row or column, we could still discard it). There could be a problem
where applications rely on the current behaviour, but this could mostly be
worked around by adding a BSpaceLayoutItem to the layout (which is more
correct, anyway).
--
Ticket URL: <http://dev.haiku-os.org/ticket/6979#comment:3>
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