On 02/11/15 19:36, Elle Stone wrote:
Could you give some examples of "on canvas" tools and "not on canvas"
tools from GIMP 2.9? And maybe an example or two of a tool that is
currently not on canvas, that would be a good candidate for being "on
canvas"? I don't think I really understand the difference. Is drawing
a gradient an "on canvas" tool?
"Filter>Distorts>Curve bend" is not on-canvas. You see the preview on a
small version of your picture, and the effect is applied to the real
drawable after you strike "OK". Not the exact distortion required? Too
bad, Ctrl-Z and redo from scratch.
The "Cage" tool does something similar, but it's on-canvas: you see the
effect directly on the actual drawable. You can drag until you get a
match with something on another layer, and get the position just right
in one interaction.
I believe this is the main difference between Tools and Plugins.
Allowing plug-ins to be fully-fledged Tools would be a truly nice thing
(or having an interface for "pluggable" tools).