How to handle zoom in Gtk Picture?

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1

I’m trying to implement a zoom functionality on Gtk Picture. I tried it with css transform scale but it does not activates scrollable window. What is the proper way to implemet zoom?

2

Hi,

GtkPicture is probably not the right widget for that. It’s not designed for zooming, but for best-fit (or 1:1) displaying.

You may want to implement a custom widget instead, and manage measure/allocate/snapshot yourself.
There is a good example in gtk4-demo > “Image scaling”.

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