I wrote a program that reads in pyqt5 pictures and display (Qlabel) under ordinary resolution normal (1920 * 1080. 100%)
Such a resolution in the use of more than 150% zoom layout will can't see the full figure,

Explain not using adaptive here, because I need a long picture scroll down to browse, using adaptive will be paved with full screen,

What method can adaptive image, but I can't compress images, and can scroll down
O way! ?