Why image is not scaling to NSImageView

Question

I have this fragment of code in my app

imvPallet.frame = NSRect(x: 5, y: 5, width: 200, height: 150)
imvPallet.imageScaling = .scaleAxesIndependently
self.view.addSubview(imvPallet)
imvPallet.image = NSImage(named: "Pallet")

where imvPallet is NSImageView object and Pallet is PNG image with original size 779 × 518 pixels stored in app's Assets. Image is still displayed in fixed original size regardless of imvPallet.frame dimension and various scaling parameters. My aim is to always fit image to imvPallet.frame size. Thanks for hints.

What do you exactly mean by "My aim is to always fit image to imvPallet.frame size"? — El Tomato, Jan 04 '20 at 14:27
I wanna change imvPallet.frame size programatically and manage image size accordingly in a way that it's always fully shown in ImageView. — Dawy, Jan 04 '20 at 15:25
What do you mean by "fully shown"? You mean, stretch the image if necessary? — El Tomato, Jan 04 '20 at 15:29
Yes, stretch = always fill ImageView frame as much is possible and always show whole image. — Dawy, Jan 04 '20 at 15:57
Then it's just the matter of resizing the image according to the image view, isn't it? — El Tomato, Jan 04 '20 at 15:58
Indeed, so I did it directly via image.size. I thought it could be done to change ImageView.frame size somehow. — Dawy, Jan 04 '20 at 16:16
You are not dealing with the `UIImageClass`. That's not how the `NSImageView` works. — El Tomato, Jan 05 '20 at 00:41
I tried your code and the image is scaled to fit the image view. How is `imvPallet` created? Post a [mre] please. — Willeke, Jan 05 '20 at 13:42

score -1 · Answer 1 · answered Jan 04 '20 at 14:05

-1

Try to scaleProportionallyUpOrDown for fit image to imvPallet

imvPallet.imageScaling = .scaleProportionallyUpOrDown

answered Jan 04 '20 at 14:05

zezuuu

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Why image is not scaling to NSImageView

1 Answers1