How does minimumImageSize works?

[jodinathan]

I'm trying to crop images with a minimum rectangle size of 200x300 pixels. What should I set as the minimumImageSize to ensure it adheres to these dimensions?

[deakjahn]

The documentation of CropImage happens to describe this situation:

crop_image/lib/src/crop_image.dart

Lines 97 to 104 in 534a147

	/// The maximum pixel size the crop rectangle can be grown to.
	///
	/// Defaults to infinity.
	/// You can constrain the crop rectangle to a fixed size by setting
	/// both [minimumImageSize] and [maximumImageSize] to the same value (the width) and using
	/// the [aspectRatio] of the controller to force the other dimension (width / height).
	/// Doing so disables the display of the corners.
	final double maximumImageSize;

If you only want to constrain the lower end, then the maximumImageSize can be larger.

[jodinathan]

I don't think I'm understanding this correctly.

How can I ensure the minimum width is constrained to 200 pixels?

I've tried setting the minimumImageSize to 200, but it still allows cropping to a smaller width.

[deakjahn]

I've just tried it in the example, aspectRatio: 1.5 in the controller, minimumImageSize: 200 for the CropImage itself, and it seems to work to me. What do you experience different?

[jodinathan]

I am trying the aspectRatio of 2/3 with minimumImageSize of 200 but it allows smaller width

[deakjahn]

Although it shouldn't depend on anything like this, but what platform do you try it on?

This is a recording from the Android emulator in the IDE, width 200, aspect ratio 1.5, and it visibly has a minimum. I also tried to put a few debug readouts in crop_image.dart around lines 420-460 to see but I'm still not yet sure how to reproduce this.

Bother, first it didn't accept it, too large. Then I cut it, wrong format. Then I converted it, it no longer displays here. :-)

[deakjahn]

Screen_recording_20241227_222210_edit.mp4