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Diffstat (limited to 'Docs/02-layout')
-rw-r--r-- | Docs/02-layout | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Docs/02-layout b/Docs/02-layout index ddc7cfd06..36f856fc0 100644 --- a/Docs/02-layout +++ b/Docs/02-layout @@ -29,3 +29,19 @@ to a new width. Coordinates in the box tree are relative to the position of the parent node. The box tree can then be rendered using each node's coordinates. + +Absolute positioning +-------------------- +Absolutely positioned boxes are constructed in the box tree in the same place as +if they were not absolutely positioned. Inline boxes are created as +INLINE_BLOCK, tables as TABLE, and other boxes as BLOCK (see +box_solve_display()). + +During layout, absolutely positioned boxes in block context (BLOCK or TABLE) are +given a position in layout_block_context(), but treated as having no height. In +inline context (INLINE_BLOCK), they are given a position in layout_line(), but +treated as having no width or height. This is done to determine the static +position. + +An additional pass after main layout positions and layouts all absolutely +positioned boxes (see layout_position_absolute()). |