Files
odfstudio/sd
Caolán McNamara 0aeb164f0f Resolves: tdf#172918 allow a media link the user inserts in this session
The document-wide link update permission is decided when the document is
loaded. But media files that the users interactively inserts should be
automatically allowed.

Remember on the media object that the user picked the reference and
allow it on its own, the same way a presentation sound the user picks is
allowed. A reference that arrived with the document still needs the
document-wide permission.

since:

commit f0768394c14f928d47547408fc1195368be81f86
Date:   Tue Jul 14 19:12:01 2026 +0100

    put slideshow media links under link control

see also:

commit 0aa870b7b5a6bda50bab50c7a0a41d28fdf4f6ab
Date:   Wed Jun 17 09:37:23 2026 +0000

    bring external presentation sounds under link management

Change-Id: Id9fd49245fbfe2d62d767e3cb04370b2e5197fe1
Signed-off-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Reviewed-on: https://gerrit.collaboraoffice.com/c/core/+/7939
Tested-by: Jenkins CPCI <releng@collaboraoffice.com>
Reviewed-by: Michael Stahl <michael.stahl@collabora.com>
Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/7961
(cherry picked from commit 82f3a17f461fb2d0057cc81625f7ae1e301db3ad)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208739
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
Tested-by: Jenkins
2026-07-28 20:00:45 +02:00
..
…
…
…
…
2026-06-01 20:44:45 +02:00

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.

Presenter Console

The main screen uses a hardware-accelerated canvas (e.g. cairo canvas), while the entire secondary screen uses a VCL-canvas that is created in sd::framework::FullScreenPane::CreateCanvas().

The secondary screen contains 3 Panes which each have 2 XWindows for the border area & the actual content, and each content Pane is backed by a sd::presenter::PresenterCanvas that wraps the FullScreenPane's canvas and does clipping.

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.