[Libreoffice] [GSoC 2011][svgexport] weekly report #1

[Thorsten Behrens]

Hi Marco,

great you're making progress -

you asked:
> (1)
> is "api.openoffice.org" the right place where to look for API
> documentation ?
> 
Yep.

> (2)
> what is the difference between: XShape, SdrObject (and derived classes)
> and Graphic ? Which are their roles ?
> 
XShape is an interface, SdrObject the actual representation of that
model - it is facaded towards XShape via SvxShape.

> (3)
> what is the GDIMetafile associated with an object of type Graphic ?
> (and what are MetaActions ?)
> 
It's like a Windows Metafile (WMF) - a list of "drawing" actions,
recorded from rendering that shape. MetaActions are the atomic
drawing primitives, i.e. set a color, draw a polygon, render some
text etc.

> (1)
> OutputDevice::LogicToLogic( rSize100thmm, MAP_100TH_MM, aMapMode )
> 
Yep, that's sadly missing documentation - would be wonderful if you
could add doxygen-style inline documentation to the header files,
whenever you encounter such omissions. In this case, it's a
conversion between coordinate systems (see vcl/outdev.hxx for the
prototypes): rSize100thmm is converted from the "MAP_100TH_MM"
coordinate system (i.e. one unit is a hundreth of a millimeter) to
the aMapMode coordinate system.

> (2)
> xDrawPages->getByIndex( nDefaultPage ) >>= mxDefaultPage;
> 
> if( mxDefaultPage.is() )
> {
>       SvxDrawPage* pSvxDrawPage = SvxDrawPage::getImplementation(
> mxDefaultPage );
> 
>       if( pSvxDrawPage )
>       {
>           mpDefaultSdrPage = pSvxDrawPage->GetSdrPage();
>           mpSdrModel = mpDefaultSdrPage->GetModel();
> 
>           if( mpSdrModel )
>           {
>               SdrOutliner& rOutl = mpSdrModel->GetDrawOutliner(NULL);
> 
>               maOldFieldHdl = rOutl.GetCalcFieldValueHdl();
>               rOutl.SetCalcFieldValueHdl( LINK( this, SVGFilter,
> CalcFieldHdl) );
>           }
>       }
> }
> 
What's your concrete question? ;)

Cheers,

-- Thorsten
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