Select pasted image (regardless of size)

[tapatilorenzo]

Hi, I want to paste an image and auto-select it. I don’t see a way to select the whole layer when it’s wider than the canvas, or a way to select the pasted image automatically. This would be a useful speed-up to my process and useful in quickly saving multiple files in krita without pasting them into new images (because that resets the save location and filetype, and some canvas-related settings).

Is it possible currently? Thanks in advance

[general-avalanche-43]

If your requirements allow cropping the canvas to a new size, you can change the mode of cropping so it doesn’t trim the pixels outside the canvas, see the dropdown menu Applies to: and set it to Canvas.

Then, make sure the crop tool is not selected, and use the action Select Opaque (replace) to select all pixels in a layer that contain something. If you need padding go to Select->Grow Selection and pick an amount appropriate.

Now switch to the crop tool, and see a bounding box appear around the region. It doesn’t matter what shape is selected, you can do the same process with any selection tool, it always makes a bounding region around the selection.

Press enter or click crop and it will now resize your canvas. The image will be precisely the width and height of the selection.

What Select Opaque (replace) does is make a selection based on the alpha value of a pixel, if the alpha is 50% then the selection will have 50% in that pixel.

[tapatilorenzo]

OH that’s what select opaque is. I saw it on the way here when I was checking out the right-click menu of layers and the Select menu. I routed redo to Ctrl+Y and keybound select opaque replace to Ctrl+Shift+Z so now it’s ctrl+shift+z, ctrl+shift+x to crop to any pasted image. Pretty easy to do, and works well! Thanks

(Or for the whole shebang: Hold control and shift, then: Z, X, E to flatten, too)

Edit: A script that does this all in order! Works, save with .py file extension and you can add it to slot 1 in Tools → Scripts → “Ten Scripts” so that Ctrl+Shift+1 will run it, and you can reassign that shortcut in keyboard shortcuts too

from krita import *

app = Krita.instance()
doc = app.activeDocument()
app.action(‘selectopaque’).trigger()
doc.waitForDone()
app.action(‘resizeimagetoselection’).trigger()
doc.waitForDone()
app.action(‘flatten_image’).trigger()
doc.waitForDone()