How to get the displayed size of a stretched texture in TextureRect?

Question

Assume having a TextureRect with some texture and arbitrary properties regarding expand and stretch_mode.

How do you easily get the size at which the texture is actually displayed without manually handling every possible case of the stretch mode?

I know I can get:

• TextureRect.rect_size and rect_scale (inherited from Control) for the bounding rectangle
• TextureRect.texture.get_size() for the image size in pixels

Comments

I'm confused. Why is rect_size not enough?

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TextureRect.rect_scale * TextureRect.texture.get_size()
Edit: yeah, I just realized, this solution was for the custom stretch mode I wrote which uses the scaling property.

Since, if you scale a TextureRect, using TextureRect.rect_size() will only return the set width and height but not the actual displayed size. To get around this, I had to get the scale property and the image texture's size manually to get the actual displayed size. But I digress.

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Hmm, what if the texture's scale is 1 but expand is on?

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rect_size may be controlled from elsewhere (container, script) and may be larger than the texture.

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expand or stretch_mode don't affect the rect_scale property, so this approach doesn't work

Answer 1

Unfortunately I don't think this is possible - there are too any stretch modes. You'll probably have to code for each one specifically.