Hello; >-----Original Message----- >From: ext Tomas Frydrych [mailto:[EMAIL PROTECTED] >Sent: 13 February, 2008 20:22 >To: clutter >Subject: Re: [clutter] transient allocations > >Matthew Allum wrote: >> On Wed, 2008-02-13 at 17:33 +0000, Tomas Frydrych wrote: >>>> This sounds like a bug - will look into it. >>> That is by design; >> As I understand it; >> >> - get_size() should return the 'true' bounding box of its >children by >> calling abs_size|get_vertices on each child.
I think this is a good design decision. A container can use get_size for child positioning independent of if the icons were visually scaled (displayed with scaling factor) with mouseover for example. It's also good to take to account that a nu-school container may want to have overlapping children etc. more radical layouting. >The problem with this is that it introduces inconsistency into the >get_size() API; for some actors it will return values that are >untransformed, and for some values that are semi-transformed. >If nothing else, it will be impossible to document easily, and >the users will end up doing tests for actor type to ensure >they are getting what they want. > >> - We have a catch22 in that get_abs size will take into account the >> size of all parents, but this is fixed by having a >> get_abs_size_in_respect_to_a_specific_parent kind of addition >> (hopefully better naming). > >Yes, we need a third size function, maybe call it > >clutter_actor_get_size_relative_to_ancestor (ClutterActor >*self, ClutterActor *ancestor, ...) > >but I do not think we should mix this with the existing abs_size() and >size() functions at all; let the abs_size() be always the size >projected on screen (and let us fix this, so it works for the >groups), and let the normal size () be untransformed (it might >not be much use for groups, but it will be consistent), and >let's add a third function, maybe specific for containers: > >clutter_container_get_real_size (ClutterConainer *), which >should take into account *both* the transformation of the >children, *and* those applied to the container. > >> If we do this, we should probably add a fast path to abs_size for >> untransformed actor case. > >Yes. > >Tomas > >-- >To unsubscribe send a mail to [EMAIL PROTECTED] > > -- To unsubscribe send a mail to [EMAIL PROTECTED]
