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Rather than passing around attributes, we can have image sizing in the
picProps and then pass it along to write to XML.
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Previously we could get ever-lengthening cell widths
when a table was run repeatedly through `pandoc -f markdown -t
markdown`. This patch stabilizes the relative cell
widths. Closes #4265.
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- Default to xtables for context output.
- Added `ntb` extension (affecting context writer only) to use Natural Tables instead.
- Added `Ext_ntb` constructor to `Extension` (API change).
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The toplevel .rels file could have a thumbnail image if taken from the
template. Rather than removing it from the inherited file, it's easier
to just make our own.
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There was a glob error that was leading to images from the
reference-doc pptx not being imported. We don't need a glob here --
just replace it with `isPrefixOf`.
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We don't need it for anything but the log messages, and we can just
keep track of that in state and pass it along to the `writePowerpoint`
function. This will simplify the code.
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We don't convert a '#target' ExternalTarget to an InternalTarget if
`target` is not in the AnchorMap. We just remove the link. This
prevents broken links in the Powerpoint output.
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They were broken when I refactored (the Output module wanted to use
state left over from the construction of the Presentation type). This
change introduces a new type `LinkTarget = InternalTarget |
ExternalTarget`. Internal target points to a slide number, and these
will all be resolved before the Presentation is passed along to the
Output module.
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There are two steps in the conversion: a conversion from pandoc to a
Presentation datatype modeling pptx, and a conversion from
Presentation to a pptx archive. The two steps were sharing the same
state and environment, and the code was getting a bit
spaghetti-ish. This separates the conversion into separate
modules (T.P.W.Powerpoint.Presentation, which defineds the
Presentation datatype and goes Pandoc->Presentation)
and (T.P.W.Pandoc.Output, which goes Presentation->Archive).
Text.Pandoc.Writers.Powerpoint a thin wrapper around the two modules.
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Just as a slide can't have an image and text on the same slide because
of overlapping, we can't have both in a single column. We run
splitBlocks on the text in the column and discard the rest.
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You can have two images side-by-side, or text alongside an image. The
image will be fit correctly within the column.
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We put `getContentShape` and `getContentShapeSize` inside the P monad,
so that we can (in the future) make use of knowledge of what slide
environment we're in to get the correct shape. This will allow us, for
example, to get individual columns for a two-column layout, and place
images in them appropriately.
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We now determine image and caption placement by getting the dimensions
of the content box in a given layout. This allows for images to be
correctly sized and positioned in a different template.
Note that iamges without captions and headers are no longer
full-screened. We can't do this dependably in different layouts,
because we don't know where the header is (it could be to the side of
the content, for example).
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Our presentation size is now dependent on the reference/template file
we use. This will make it easier to set different output sizes by
supplying different reference files. The alternative (allowing a user
to explicitly set output size regardless of the template) will lead to
too many thorny issues, as explicitly set sizes at the various level
of powerpoint layout would have to be reset.
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Last commit accidentally left commented-out code in.
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Above the slidelevel, subheaders will be printed in bold and given a
bit of extra space before them. Note that at the moment, no
distinction is made between levels of headers above the slide header,
though that can be changed. (It has to be changed in pandoc, since
PowerPoint has no concept of paragraph or character classes.)
This allows us to clean up the code as well: the code in
`blockToParagraphs` since it will only touch content blocks, and
therefore will not deal with headers at or below the slidelevel.
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Since we now import from reference/dist file by glob, we need to make
sure that we're getting the files we need to make a non-corrupt
Powerpoint. This performs that check.
(In the process, this change also cleaned up a lot of commented-out
code left from the switch to the new reference-doc method.)
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Templating should work much more reliably now. There is still some
problem with image placement when we change sizes. A further commit
will address this.
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Accompanying change in MANUAL.txt
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This will allow the Powerpoint writer to use it as well.
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It used to be hardcoded to 2. This will set it to the appropriate
slide-level.
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This is triggered by the `--toc` flag. Note that in a long slide deck
this risks overrunning the text box. The user can address this by
setting `--toc-depth=1`.
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Previously, this hadn't been aware of a metadata slide. We also
clarify the logic for setting the startnumber of different slide
sections correctly.
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If the user entered an internal link without a corresponding anchor,
it would produce a corrupted file. Now we check the anchor map, and
make sure the target is in the file. If it isn't, we ignore it.
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We want to count the slide numbers correctly if it's in there.
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For anchor-type links (`[foo](#bar)`) we produce an anchor link. In
powerpoint these are links to slides, so we keep track of a map
relating anchors to the slides they occur on.
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For anchors, block-processing functions need to know what slide number
they're in. We make the envCurSlideId available to blocks.
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It really isn't a moving state, and that can be misleading.
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This fixes a bug whereby column widths for the body were
different from widths for the header in some tables.
Closes #4238.
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Closes #4235.
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For now, ignore notes div for parity with other slide outputs.
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We had previously defaulted to slideLevel 2. Now we use the correct
behavior of defaulting to the highest level header followed by
content. We change an expected test result to match this behavior.
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We treat links with an image as the first inline as an image with a
link picProp -- so we have to split on it the same as if it were an
image.
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This will make the xml easier to read for debugging purposes. It
should also make links behave more consistently across numerous words.
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Previous version replaced *each* element from the template with the
new elements -- leading to multiple overlapping frames. This only
replaces the first instance, and throws out the rest.
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Previously (a) the code size wasn't set when we force size, and (b)
the properties was set from the default, instead of inheriting. Both
of those problems were fixed.
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A lot of work in the powerpoint writer is replacing XML from within
slidelayouts from templates. This function does a good deal of that
work, and this makes it preserve element order, as well as making it a
bit easier to understand.
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Remove commented-out functions and imports.
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The following markdown:
[](http://www.example.com)
will now produce a linked image in the resulting PowerPoint file.
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We require an empty "<a:p>" tag, even if the cell contains no
paragraphs -- otherwise PowerPoint complains of corruption.
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The record syntax in a pattern match seems to be confusing the 8.X
compilers. Stop using it.
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This uses the columns/column div format described in the pandoc
manual. At the moment, only two columns (half the screen each) are
allowed. Custom widths are not supported.
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fixes for docx writer
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Word 2016 seems to use a default value of "1" for table headers, if there is no firstRow definition (although a default value of 0 is documented), so all tables get the first Row formatted as header.
Setting the parameter to 0 if the table has no header row fixes this for Word 2016
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