The problem with not having some but not all headers enabled on a page
style is that Word does page margins differently than Writer, and this
causes `testTdf116486` and `testFdo44176` to fail.
In Writer, it's always additive: page `fo:margin-top` + header
`fo:margin-bottom` gives the spacing from the top of the page to the
body text.
In Word, there is a `w:header` (from top of page to header) and `w:top`
(from top of page to body text) and the problem is, they're not
additive, both are measured from top of page.
If all headers are enabled,
`SectionPropertyMap::PrepareHeaderFooterProperties()` can map this to
`HeaderHeight` and `HeaderBodyDistance` properties, but of course those
won't be used if there's no header on the page.
So import `w:top` as a new property "MinTopBodyDistance" (and also
"MinBottomBodyDistance") implemented as new item
`RES_FRMATR_PAGE_MIN_TOP` (and also `RES_FRMATR_PAGE_MIN_BOTTOM`).
Use it in `SwLayoutFrame::Format()` to set the page frame margins, but
only if there is no header; else rely on the existing header properties.
Export this to ODF as
`coext:min-page-margin-top` and `coext:min-page-margin-bottom`.
Signed-off-by: Michael Stahl <michael.stahl@collabora.com>
Change-Id: I9d98bbf7138c9ef04d4ab1ddcb4c3183a12d9b11
Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/4310
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins CPCI <releng@collaboraoffice.com>
(cherry picked from commit e065ba01c029cd01c9128afccdc953e2e3a49e65)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/206702
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
Tested-by: Jenkins