I have to display images with a few controls: alpha channel, rotation, scaling, cropping. Generally it should be png but I want to be able to handle many images. The images will be memory based(I'll load the file in to memory then) and will be displayed in a drawing area.

Any ideas how to go about this correctly?

On 01-10-17 01:56, Psychological Cleanup wrote:
> I have to display images with a few controls: alpha channel, rotation, scaling, cropping. Generally it should be png but I want to be able to handle many images. The images will be memory based(I'll load the file in to memory then) and will be displayed in a drawing area.
> 
> Any ideas how to go about this correctly?

For displaying an image you can use gtk.Image. Rotating, scaling and cropping should be doable by loading the image into a cairo surface and then applying the transformations.
But that doesn't support things like changing the alpha channel.

-- 
Mike Wey