Crop image

[danics]

Hi everybody!


i want to modify a image and crop that! what is best solution that i can use and is fast?

i think i must use QPainter but i dont know how to draw region of crop with Darg and drop or mousemove event!

thanks a lot.

[aamer4yu]

Use QLabel to show a image. Implement a QRubberBand over the label. Then get the rect of rubber band , translate to image cordinates and crop the image using QImage::scaled.
Then set the scaled image on the label.
Hope this helps...

[toutarrive]

If you are working with a QImage : http://doc.qt.io/qt-4.8/QImage::copy(QRect)