"From clipboard" button: fall back to interpreting clipboard data as path to image

[D Gowers]

Though we can currently paste into the Filename field, this is not useful for pasting a path, as it strips all '/'.

Some way to load directly from a path would be helpful. The "From Clipboard" button seems like the logical place to put it, as pressing this button with a path on the clipboard currently just produces an error flash.

This would enable browsing through project files in a real image viewer (eg. sxiv) and easily loading them in grafx2.

Ideally, the case of 'exactly 2 paths on the clipboard' could also be handled (replacing both the current page and the spare page)

[PulkoMandy]

Ithink you can just drag and drop files on grafx2 to load them, sounds much simpler

[D Gowers]

.. the image viewer I'm using (sxiv) doesn't support DnD, so any DnD would introduce an additional step of programmatic interaction with a file-manager (eg. SpaceFM) or other thing-that-can-generate-a-drag-event (eg. clipboard manager; although for example when I drag a path from CopyQ, grafx2 just says Unhandled SelectNotify selection=XdndSelection).

I've explored other image viewers extensively. Some of them (eg. eog, gthumb) do support DnD, but lack other important features (eg. a thumbnail view; Upscaling of particularly small thumbnails; Customizable actions). I'd guess that about 70% of viewers support DnD.

[Thomas Bernard]

OK so we could modify "Paste" so when the "clipboard" does not contain an image but only text, it tries to interpret it as a path to image and open the image (or just the directory)

[Thomas Bernard]

​https://gitlab.com/GrafX2/grafX2/merge_requests/197

[Thomas Bernard]

fixed for both X11 and Win32 :)