| 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 |
| 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 |
| slideshow module though (including the 3D transitions engine |
| slideshow/source/engine/opengl). |
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| the most used filters are ODF's odp, binary ppt and OOXML's |
| 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) |
| * 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 |
| 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 |
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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 |
| 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. |
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| The export filter was written in 2009 IIRC and was not much extended |
| feature-wise lately. |
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| FUTURE work: 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. |
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| 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. |