Climber

every week throughout the winter I take and then process about 100 pictures of the ice cliffs in my area. one of the things I do is to select the area I want to focus on and crop appropriately. I have been using PS to do this for years. I'd like to make the switch to Affinity, but this lack of a Crop To Selection functionality is a real workflow deal-breaker. Get on it folks...

every week throughout the winter I take and then process about 100 pictures of the ice cliffs in my area. one of the things I do is to select the area I want to focus on and crop appropriately. I have been using PS to do this for years. I'd like to make the switch to Affinity, but this lack of a Crop To Selection functionality is a real workflow deal-breaker. Get on it folks...

Hard to believe AP has no photoshop-like fit image command.

It's such a small thing. A very basic feature. Why not implement it, and see if people like it? Shouldn't take too long to try it out.

I apologize if this has been covered already, I did not read the entirety of the four pages of comments, though I did read pages 1 and 4.
I think the people who are saying "just do this it's so easy" aren't grasping a possible use of "Crop to Selection."
Switcheroo is perhaps struggling with the same workflow that I am.  Here's how I've used "Crop to Selection" in other apps:
Zoom way in on the top left corner Make a rectangular selection where the top-left corner of the selection is the top left corner of my desired crop The bottom right corner of the selection is arbitrary. I'll typically select a 30x30 pixel region of a very large image. Zoom all the way out Zoom way in on the bottom right corner Add a rectangular selection where the bottom right corner of the selection is the bottom right corner of my desired crop. Again, the top left corner of the selection is arbitrary And again, this will be a tiny selection in a large image. What I'm after is the bounding box of the two selections, or however many I need...the point is to zoom in on what may be the top-/left-/right-/bottom-most pixels of the crop, select, and keep adding selections until the bounding box of all selection is the desired crop rectangle.
To illustrate Switcheroo's visual example, I would select this:

This allows me pixel precision by zooming in, yet relieves me from having to actually make a large single selection while retaining the precision.
To those of you who will respond that I could...
Enter crop mode Move top-left corner of crop relatively close to desired position Zoom way in to same position Adjust top-left corner of crop to be precise Zoom out Move bottom-right corner of crop relatively close to desired position Zoom way in to same position Adjust bottom-right corner of crop to be precise ...just count the number of steps. Also, sometimes I need to define, say, the top bound independently of the left bound, and the top-most pixel to include is a third of the way across the top...at this point it becomes cumbersome to use the top handle of the crop tool while zoomed-in.
All of this to say: it seems like a simple enough facade to the existing crop feature. Destructive, nondestructive, I don't care; there was a pseudoish-code example that provided an interface to the existing crop functionality, only it built the crop bounds from selection data. This seems reasonable to me. In UIs, it seems that the more ways there are to accomplish one thing just makes more people more efficient.
 

No, it is not the same thing: it is more difficult to be as precise in the cropping with the crop box of Affinity and it is more cumbersome.
Photoshop has been the leader in the photo retouching software market for so many years that any software company that jumps into the photo retouching market will have to reproduce, in some way, the basic functions of Photoshop or they will never succeed. People are too used now to the Photoshop functionalities that any lack in the basic functions in a new software would translate into failure to become the new number one. 

I just downloaded the trial version an hour ago. First thing I tried was "Crop to selection", and after reading several forums on Internet, I learn that it is not possible!!!
Wow, that does not start well for Affinity. Such a basic function, I can't understand why it has been left out. As many, I want to leave the money siphon company, but how would it be possible if the competition is that silly??!!

Such self-important arrogance. If this is the kind abusive, do-it-our-way-or-sod-off response people can expect when they come here for help, maybe I should stop recommending Affinity software.

Hi,
 
such a basic tool....
Yes, please add this

@carl123 thank you! Your macro is amazing. 😁 It's absurd that we need a macro for such a basic feature, but... go figure.
What I don't like about this discussion is the way some users are putting it... Like:
you just need to do this (+ 10 steps of fiddling) you are using the wrong tool ... and other nonsense We all understand Affinity products are quite good. There is no need to reinforce that.
However, making jokes on other users or pretending not to understand that "crop to selection" must crop the picture to the bounding box of a selection is just silly. This feature is present in basically any image editor and has been there in the open source program GIMP for 20 years as well (with one click).
There is no technical issue for Affinity to create a shortcut for the non-destructive crop tool. It would just need to retrieve the coordinates of the active selection and apply those.