189 lines
7.2 KiB
Text
189 lines
7.2 KiB
Text
Support for Office Open XML, the office XML-format designed by Microsoft.
|
|
|
|
See also:
|
|
[http://wiki.openoffice.org/wiki/OOX]
|
|
|
|
== DrawingML Custom shapes and presets ==
|
|
|
|
custom shapes are part of DrawingML and are different to binary ppt
|
|
and VML in older formats, so we needed to add new code to work with
|
|
these. the import happens in oox/source/drawingml, where they are
|
|
imported as LO's enhanced custom shape's. see
|
|
offapi/com/sun/star/drawing/CustomShape.idl and
|
|
offapi/com/sun/star/drawing/EnhancedCustomShape*.idl
|
|
|
|
the export is quite behind now, as it was done before we started work
|
|
on fully supporting drawingml custom shapes. (see FUTURE WORK below)
|
|
|
|
example of drawingml preset:
|
|
|
|
<a:prstGeom prst="star5">
|
|
<a:avLst/>
|
|
</a:prstGeom>
|
|
|
|
example of drawingml custom shape (equal to star5 preset):
|
|
|
|
<avLst xmlns="http://schemas.openxmlformats.org/drawingml/2006/main">
|
|
<gd name="adj" fmla="val 19098" />
|
|
<gd name="hf" fmla="val 105146" />
|
|
<gd name="vf" fmla="val 110557" />
|
|
</avLst>
|
|
<gdLst xmlns="http://schemas.openxmlformats.org/drawingml/2006/main">
|
|
<gd name="a" fmla="pin 0 adj 50000" />
|
|
<gd name="swd2" fmla="*/ wd2 hf 100000" />
|
|
<gd name="shd2" fmla="*/ hd2 vf 100000" />
|
|
<gd name="svc" fmla="*/ vc vf 100000" />
|
|
<gd name="dx1" fmla="cos swd2 1080000" />
|
|
<gd name="dx2" fmla="cos swd2 18360000" />
|
|
<gd name="dy1" fmla="sin shd2 1080000" />
|
|
<gd name="dy2" fmla="sin shd2 18360000" />
|
|
<gd name="x1" fmla="+- hc 0 dx1" />
|
|
<gd name="x2" fmla="+- hc 0 dx2" />
|
|
<gd name="x3" fmla="+- hc dx2 0" />
|
|
<gd name="x4" fmla="+- hc dx1 0" />
|
|
<gd name="y1" fmla="+- svc 0 dy1" />
|
|
<gd name="y2" fmla="+- svc 0 dy2" />
|
|
<gd name="iwd2" fmla="*/ swd2 a 50000" />
|
|
<gd name="ihd2" fmla="*/ shd2 a 50000" />
|
|
<gd name="sdx1" fmla="cos iwd2 20520000" />
|
|
<gd name="sdx2" fmla="cos iwd2 3240000" />
|
|
<gd name="sdy1" fmla="sin ihd2 3240000" />
|
|
<gd name="sdy2" fmla="sin ihd2 20520000" />
|
|
<gd name="sx1" fmla="+- hc 0 sdx1" />
|
|
<gd name="sx2" fmla="+- hc 0 sdx2" />
|
|
<gd name="sx3" fmla="+- hc sdx2 0" />
|
|
<gd name="sx4" fmla="+- hc sdx1 0" />
|
|
<gd name="sy1" fmla="+- svc 0 sdy1" />
|
|
<gd name="sy2" fmla="+- svc 0 sdy2" />
|
|
<gd name="sy3" fmla="+- svc ihd2 0" />
|
|
<gd name="yAdj" fmla="+- svc 0 ihd2" />
|
|
</gdLst>
|
|
<ahLst xmlns="http://schemas.openxmlformats.org/drawingml/2006/main">
|
|
<ahXY gdRefY="adj" minY="0" maxY="50000">
|
|
<pos x="hc" y="yAdj" />
|
|
</ahXY>
|
|
</ahLst>
|
|
<cxnLst xmlns="http://schemas.openxmlformats.org/drawingml/2006/main">
|
|
<cxn ang="3cd4">
|
|
<pos x="hc" y="t" />
|
|
</cxn>
|
|
<cxn ang="cd2">
|
|
<pos x="x1" y="y1" />
|
|
</cxn>
|
|
<cxn ang="cd4">
|
|
<pos x="x2" y="y2" />
|
|
</cxn>
|
|
<cxn ang="cd4">
|
|
<pos x="x3" y="y2" />
|
|
</cxn>
|
|
<cxn ang="0">
|
|
<pos x="x4" y="y1" />
|
|
</cxn>
|
|
</cxnLst>
|
|
<rect l="sx1" t="sy1" r="sx4" b="sy3" xmlns="http://schemas.openxmlformats.org/drawingml/2006/main" />
|
|
<pathLst xmlns="http://schemas.openxmlformats.org/drawingml/2006/main">
|
|
<path>
|
|
<moveTo>
|
|
<pt x="x1" y="y1" />
|
|
</moveTo>
|
|
<lnTo>
|
|
<pt x="sx2" y="sy1" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="hc" y="t" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="sx3" y="sy1" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="x4" y="y1" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="sx4" y="sy2" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="x3" y="y2" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="hc" y="sy3" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="x2" y="y2" />
|
|
</lnTo>
|
|
<lnTo>
|
|
<pt x="sx1" y="sy2" />
|
|
</lnTo>
|
|
<close />
|
|
</path>
|
|
</pathLst>
|
|
|
|
we needed to extend our custom shapes for missing features and so 5
|
|
new segment commands were added. G command for arcto drawingml record
|
|
and H I J K commands for darken, darkenless, lighten, lightenless
|
|
records. the commands are save into ODF in special namespace drawooo,
|
|
which is extension not yet in the standard. Thorsten suggested to put
|
|
it in such a namespace and keep original (incomplete) geometry for
|
|
backward compatibility, before we can extend the ODF. that's why you
|
|
will see 2 of them in cases where some of the new commands was
|
|
needed. Radek backported code for the new commands to 3-6
|
|
and 4-0 branches.
|
|
|
|
the drawingml also contains new presets (compared to binary/VML) and
|
|
so we now have code with these presets - they are basicallly
|
|
predefined custom shapes. we generate them using scripts in
|
|
oox/source/drawingml/customshapes/ and the output are
|
|
oox/source/drawingml/customshapepresets[123456].cxx source files
|
|
containing the definition for the preset shapes. this mean that we
|
|
import presets from OOXML files perfectly. one area to look at might
|
|
be check how handles on the imported custom shapes (and presets)
|
|
wotk.
|
|
|
|
the source code generation happens in these steps:
|
|
|
|
* generate pptx files by running generatePresetsPPTXs.pl. it
|
|
generates files in pptx/ from cshape.pptx sample - replacing
|
|
slide1.xml in it and placing it in new file in pptx/ named after
|
|
the preset plus one cshape-all.pptx file all the presets
|
|
|
|
* build oox module with debug (ie. make -s debug=t dbglevel=2)
|
|
|
|
* import cshape-all.pptx into impress and redirect output to
|
|
custom-shapes.log
|
|
|
|
* generate cxx files by running generatePresetsCXX.pl - it uses
|
|
debug output from the custom-shapes.log file and prepares the C++
|
|
source code
|
|
|
|
* check generated source code files customshapepresets[123456].cxx
|
|
and move them to oox/source/drawingml/
|
|
|
|
* build oox with new source files and test
|
|
|
|
while importing presets, we also set the name of the custom shape so
|
|
that we can detect it on export as save it again as preset.
|
|
|
|
the scripts in oox/source/drawingml/customshapes/ also generate pptx
|
|
files for signle presets and also for all presets
|
|
cshape-all.pptx. the cshape-all.pptx file is then loaded into impress
|
|
build with debug enabled in oox and the command line output contains
|
|
information, which are used by generatePresetsCXX.pl. redirect the
|
|
output into custom-shapes.log in oox/source/drawingml/customshapes/
|
|
and run the script. it creates the customshapepresets[123456].cxx
|
|
source files with presets definitions. also the generated pptx files
|
|
can be used when debugging bugs in custom shapes import/export. also
|
|
the cshape-all.pptx can be used to test the round trips. there's small
|
|
problem with these pptx as they cannot be imported into powerpoint,
|
|
but that can be fixed quickly. when fixed, we can use it to
|
|
test powerpoint odp export and see how complete it is regarding
|
|
custom shapes. OpenXML SDK tools might help when fixing
|
|
cshape-all.pptx
|
|
http://www.microsoft.com/en-us/download/details.aspx?id=30425
|
|
|
|
FUTURE WORK: because we have to make sure that all the roundtrips
|
|
like PPTX --> ODP --> PPTX work correctly and doesn't loose data.
|
|
the only problematic part is probably saving custom shapes (ie. not
|
|
presets) to PPTX. that part of code predates work on custom shapes
|
|
and is unable to export general custom shapes yet. it will need a bit
|
|
of work as LO has more complex equations than DrawingML. other parts
|
|
should work OK, PPTX --> ODP should work and don't loose any
|
|
data. presets should already survive PPTX --> ODP --> PPTX roundtrip
|