Cropping an image increases the file size (compression ratio)

[myii]

Transferring over from https://gitlab.com/ubports/apps/gallery-app/issues/95.

CC: @StefWe.

[StefWe]

I have searched in ubuntu-ui-extras and found that the quality is set to 90. So it should compress the picture.

https://doc-snapshots.qt.io/qt5-5.9/qimage.html#save

ubuntu-ui-extras/modules/Ubuntu/Components/Extras/plugin/photoeditor/photo-edit-thread.cpp

Lines 107 to 108 in 925cb3e

	bool saved = image.save(m_photo->file().filePath(),
	m_photo->fileFormat().toStdString().c_str(), 90);

I don't see the why it is not working.

[StefWe]

With -1 as quality parameter it use the same compression as the picture has before.

Can we live with that?

[myii]

@StefWe As mentioned in our discussion in the Telegram group, using -1 sounds like the right solution in the circumstances.

[UniversalSuperBox]

Fixed by #31