[CREATE] OpenRaster proposal: save currently selected layer

[Boudewijn Rempt]

On Sunday 25 March 2012 Mar, Boudewijn Rempt wrote:
> On Saturday 24 March 2012 Mar, Andrew Chadwick wrote:
> > It would be helpful for users if the currently selected layer could be
> > saved between sessions and restored when loading (see
> > https://bugs.freedesktop.org/show_bug.cgi?id=37713 ). Let's support a
> > new attribute on <layer/> to make this possible:
> > 
> >   <stack>
> >     <layer name="sketch" x="0" y="0" src="data/layer001.png"/>
> >     <layer name="colours" x="-512" y="-128" src="data/layer002.png"
> >       selected="selected"/>
> >   </stack>
> > 
> > A proposal for this up for review at
> > http://www.freedesktop.org/wiki/Specifications/OpenRaster/Draft/LayerSelectionStatus
> > . Comments welcome! (Reply-To: set; please use the CREATE list for feedback)
> > 
> > I've chosen W3C-style Boolean attribute notation for XML for this. Hope
> > that's OK. As far as MyPaint is concerned the selected layer is the same
> > thing as the layer currently active for editing (though it might be
> > locked and thus not receive brushstrokes), and there is only one such
> > layer. Does this proposal need to be extended to support multiple
> > selection of layers and/or differing concepts of "active", or is what we
> > have up right now sufficient? If it's insufficient, we could go with an
> > enumerated type instead.
> 
> I think it's sufficient. I don't have a particular liking for the way these boolean attributes are specified, but I don't really object, and we can support this from krita as well.
> 
> In fact, one of the things on my todo list is to have such an attribute for our native file format too, as well as a way to mark layer groups as collapsed.
> 
> 

Oh, just when I wanted to hack on this, I realized why I hadn't done so before: Krita can show the same image in more than one view, with a different active layer in each view. Not sure how to solve this right now, but don't let that hinder adding this to  ora.

-- 
Boudewijn Rempt
http://www.valdyas.org, http://www.krita.org, http://www.boudewijnrempt.nl