Is there a libkis way to select opaque pixels with rectangle? Should I process pixelData with some other library? Maybe you have a suggestion how to do it? I can ofcourse go through the pixelData pixel by pixel and then (maybe) offset it by the layer position, but it seems cumbersome.

For those interested the intention is to crop the opaque part of the layer and use it as the brush tip with a keystroke.

Why not trigger the "deselect" and "selectopaque" actions and then use the resulting selection?

TheraHedwig wrote:Why not trigger the "deselect" and "selectopaque" actions and then use the resulting selection?

Sounds fantastic! Where do I find these actions?

In Krita, in the Select menu. From Python, you can call actions like this:

Code: Select all

app = krita.Krita.instance()
app.action('selectopaque').trigger()

There's also selectopaque_add, selectopaque_subtract and selectopaque_intersect.

Found the actions with this:

Code: Select all

app = Krita.instance()
#print("\nKrita.instance():\n",dir(app))
print("\nKrita.instance().actions()[0]:\n",dir(app.actions()[0]))
print("\n[action.objectName() for action in Krita.instance().actions()]:\n", [action.objectName() for action in app.actions()] )

rbreu wrote:In Krita, in the Select menu. From Python, you can call actions like this:

Code: Select all

app = krita.Krita.instance()
app.action('selectopaque').trigger()

There's also selectopaque_add, selectopaque_subtract and selectopaque_intersect.

Thank you!