Re: New drawing/scrolling model

[Alexander Larsson <alexl redhat com>]

> On Thu, May 2, 2013 at 2:40 PM, Alexander Larsson <alexl redhat com> wrote:
> > . Secondly, in a more "modern"
> > scene graph like in recent gtk3 most windows have alpha pixels and
> > render over the window background rather than each window rendering
> > its own opaque background, so scrolling via copy doesn't work.
>
> which really touches on whether "simple-draw5" or some future WIP will just
> use a scene graph for everything anyway ...

simple-draw4 targets 3.10, its not very large:
  23 files changed, 1274 insertions(+), 2212 deletions(-)

But, the long term for Gtk4 is to move to a scene graph based on clutter.
 
> and finally, does simple-draw4 attempt to work hard on behalf of particular
> widgets, or is complexity left to the widgets? i think it is far preferable
> to go the latter route, although there may be a small cost of duplicated
> effort.

All complexity is left to the individual widgets, although there is a helper
object to share code.