How to resize image in gtk(rust)?

qarmin · December 15, 2020, 4:43pm

Hi,
I want to create preview of images, but I don’t know how to resize them with no aspect change.
I don’t see in Gtk – 3.0 any info how to do it.

For now I only load image with set_from_file function

qarmin · December 16, 2020, 9:45am

I partially implemented it here:

I’m using image crate to load image, next I resize them to specific size, save them to .cache folder and at the end I load them from GTK.

This maybe not looks too optimal, but works really fast in most situation

sdroege · December 16, 2020, 10:13am

Instead of temporary files you could also go via GdkPixbuf, or even use that for rescaling. The gdk_pixbuf crate provides bindings for that (loading files, rescaling, etc. or just creating one from in-memory RGB), and you can create a new gtk::Image from a pixbuf.

system · December 30, 2020, 10:27am

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