ea5641baee
Previously, all of the README files have been renamed to README.md and now, the contents of these files were changed to use Markdown format. Other than format inconsistency, some README.md files lacked information about modules, or were out of date. By using LibreOffice / OpenOffice wiki and other documentation websites, these files were updated. Now every README.md file has a title, and some description. The top-level README.md file is changed to add links to the modules. The result of processing the Markdown format README.md files can be seen at: https://docs.libreoffice.org/ Change-Id: Ic3b0c3c064a2498d6a435253b041df010cd7797a Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113424 Tested-by: Jenkins Reviewed-by: Michael Stahl <michael.stahl@allotropia.de> Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
45 lines
1.8 KiB
Markdown
45 lines
1.8 KiB
Markdown
# LibreOffice Impress / Draw Application
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The core directory for the impress/draw applications.
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Think of impress as a hack on top of draw.
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`sd` module contains impress/draw specific code, non-shared UI and part
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of `ppt` and `pptx` filter, few other filters too.
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the slideshow UI lives here as well, the slideshow engine is in
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`slideshow` module though (including the 3D transitions engine
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`slideshow/source/engine/opengl`).
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the most used filters are ODF's `odp`, binary ppt and OOXML's
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`pptx`. their locations are listed below:
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* `odp` import and export filters are in `xmloff` module (mostly `xmloff/source/draw`)
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* `ppt` import is in `sd/source/filter/ppt` (big shared chunks are also in `svx`)
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* `ppt` export is in `sd/source/filter/eppt` (big shared chunks are also in `svx`)
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* `pptx` import is in `oox/source/ppt` (and uses a lot of
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`oox/source/drawingml` and `oox/source/*`)
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* `pptx` export is in `sd/source/filter/eppt` (mostly in `pptx-*` source
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files) and shared part is in `oox/source/export`
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## PPTX Export / Import Filters
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PPTX export filter is split into 2 parts. Impress related part is in
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`sd/source/filter/eppt/pptx-*` and the other part is in
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`oox/source/export/` because it contains mostly code related to
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`DrawingML`, which is shared with writer and calc ooxml export.
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The export filter was written in 2009 IIRC and was not much extended
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feature-wise lately.
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## Future Works
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Add custom shapes export (see below). enhance text
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output, we don't write text style for indentation levels now, need to
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export `a:lvl1pPr`, `a:lvl2pPr`, ... elements.
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`PPTX` import was written by Sun/Oracle and then extended in LibreOffice
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a lot during bug fixing. It is located in `oox/source/ppt` and
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`oox/source/drawingml`. The areas with most bugs (at least until today)
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were shape placeholders and text style inheritance.
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