QImage

satyanarayana143

Hi friends,

I am Qlabel in Qwidget to display image but in Qlabel image left side gap is more than right size how to center can anbody tell the solution.

 const QPixmap pix = QPixmap::fromImage(image);
const QSize size = ui->Image_Label->size();  

//modified on 23/10/2018
ui->Image_Label->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
ui->Image_Label->setPixmap(pix.scaled(size,Qt::KeepAspectRatio));

mrjj

Hi
When do you call the code ?
The ui->Image_Label should be fully visible before you take its
size as layout calculation is deferred until widget is visible.

satyanarayana143

In Qwiget i put QLabel with gridlayout in ui form at starting i am showing widget.

mrjj

@satyanarayana143
"at starting" means in Mainwindows constructor ?
Try to do same code from a button and see if it then works as expected.
if it does, it means, you are doing taking size of Label when its not fully layouted yet.

satyanarayana143

I am displaying when checkbox checked in ui as above image.

mrjj

@satyanarayana143
So when you run code, the QLabel is fully visible ?
Sorry , i cannot guess what else could be wrong.
It centers as expected here
alt text

satyanarayana143

@mrjj

can you send the code

mrjj

@satyanarayana143
Sure
https://www.dropbox.com/s/fladys1ao8cj5gq/centerlabel.zip?dl=0