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diff --git a/sd/README.md b/sd/README.md new file mode 100644 index 000000000..4413a0776 --- /dev/null +++ b/sd/README.md @@ -0,0 +1,45 @@ +# LibreOffice Impress / Draw Application + +The core directory for the impress/draw applications. + +Think of impress as a hack on top of draw. + +`sd` module contains impress/draw specific code, non-shared UI and part +of `ppt` and `pptx` filter, few other filters too. + +the slideshow UI lives here as well, the slideshow engine is in +`slideshow` module though (including the 3D transitions engine +`slideshow/source/engine/opengl`). + +the most used filters are ODF's `odp`, binary ppt and OOXML's +`pptx`. their locations are listed below: + + * `odp` import and export filters are in `xmloff` module (mostly `xmloff/source/draw`) + + * `ppt` import is in `sd/source/filter/ppt` (big shared chunks are also in `svx`) + * `ppt` export is in `sd/source/filter/eppt` (big shared chunks are also in `svx`) + + * `pptx` import is in `oox/source/ppt` (and uses a lot of + `oox/source/drawingml` and `oox/source/*`) + * `pptx` export is in `sd/source/filter/eppt` (mostly in `pptx-*` source + files) and shared part is in `oox/source/export` + +## PPTX Export / Import Filters + +PPTX export filter is split into 2 parts. Impress related part is in +`sd/source/filter/eppt/pptx-*` and the other part is in +`oox/source/export/` because it contains mostly code related to +`DrawingML`, which is shared with writer and calc ooxml export. + +The export filter was written in 2009 IIRC and was not much extended +feature-wise lately. + +## Future Works +Add custom shapes export (see below). enhance text +output, we don't write text style for indentation levels now, need to +export `a:lvl1pPr`, `a:lvl2pPr`, ... elements. + +`PPTX` import was written by Sun/Oracle and then extended in LibreOffice +a lot during bug fixing. It is located in `oox/source/ppt` and +`oox/source/drawingml`. The areas with most bugs (at least until today) +were shape placeholders and text style inheritance. |