impending doom - new layers structure

Casper Boemann cbr at
Wed Dec 21 23:58:24 CET 2005

Ok doom is here

please do as much as you can and don't hesitate to ask

On Wednesday 21 December 2005 13:12, Casper Boemann wrote:
> Hi Krita devs
> I'm currently working on a HUGE refactoring of Krita, affecting nearly
> every file. When I commit you should expect a lot of fallout.
> Everything from saving,loading, merging anything that has to do with layers
> will probably not be working correctly or at all!
> What will be working is images with one layer created with custom startup
> dialog. And basic painting onto that layer and filtering of that layer.
> I hope that you wil all chip in and help get Krita back to normal as soon
> as possible.
> Illisius will do the layerbox reenabling
> BCoppens will do the embedding and saving/loading
> Boud will do everything else (incl previewwidget)
> I, boemann, will do everything else as well (incl. being standby for you
> almost 24/7)
> The rest of you please help along. Let's try to make the commits come fast.
> Each fix should be fairly small.
> Now some words about what is about to change.
> We used to have KisLayer be a subclass of KisPaintDevice
> This is no longer the case.
> We now have KisLayer which is an abstract class. Subclasses are
> KisGroupLayer,KisPaintLayer,KisPartLayer and later on KisAdjustmentLayer.
> KisGroupLayer contains a list of sublayers. And KisImage has a m_rootLayer
> which is a KisGroupLayer
> KisPaintLayer owns (not inherits) a KisPaintDeviceImpl.
> KisPartLayer will be for Bart to design
> KisImage has two methods activeLayer() and activeDevice(). The activeLayer
> can be any of the above types. You wont know and you shouldn't. know. Use
> only to set layer properties like name, visibillity, lock, opacity,
> position and compositeops. The activeDevice (type KisPaintDeviceImplSP) can
> be 0 if the activeLayer is not a KisPaintLayer.
> KisImage no longer has the notion of index for layers. Position is given by
> parentLayer and layerBelow. if layerBelow is 0 the layer is the last layer
> within the parent.

best regards / venlig hilsen
Casper Boemann

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