Layer usuability idea
zander at kde.org
Mon Nov 7 20:28:57 CET 2005
On Monday 07 November 2005 19:54, Boudewijn Rempt wrote:
> > The major problems I detected were;
> > a) layer selection. Which layer to start drawing on.
> > b) feedback for 'current layer'.
> > c) picking a color and other such interactions are a bit weird with
> > layers, they require a more complex mental model.
> > the last one is minimized by the selection tools defaulting to 'all
> > layers' which is a good thing. But the feedback of which layer is
> > what is lost whenever the user tries to change that.
> First I thought you were talking about the selection tools, but I guess
> you just mean the colour picker.
I do. Since this is about point (c) layers add a mental model
> Where the colour is picked from is
> already quite visible,
I disagree; named layers is no substitute for having a visible feedback of
selecting which layer you are going to be selecting from.
> with the default being "sample all visible
> layers" -- i.e., exactly what you want.
I guess I did not explain fully; the default is indeed fine. The layers
issue (again, point c.) comes into play when the user changes the
combobox from the default value and selects something from another layer.
> The color you see on screen is
> what you get when using the picker.
Only in the default; when you change the combobox then things get weird
and mental models get confused. i.e. more feedback is required.
ps. I just found its got a severe bug in that it can only pick a color
from a specific layer (after changing the combobox) if that same layer is
the active one. Otherwise it just defaults to 0,0,0
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