Set the image at the center in QLabel?

[vishal.chauhan]

Hi ALL,

I m using Qt 4.1.5 on my MAC.

I have a dialog in which i m showing the image on a Label and if the image is bigger than there is a scroll area to scroll it.

But if image is small then it shows it in the Upper left corner of the dialog but I want that the image should start from the center.

Im using the following code o do it..

QLabel *imageLabel = new QLabel(pFilePreviewDlg);
					imageLabel->setAlignment (Qt::AlignCenter);
					imageLabel->setBackgroundRole(QPalette::Base);
					imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
					imageLabel->setPixmap(pixmap);
 
					QScrollArea *scrollArea = new QScrollArea(pFilePreviewDlg);
					scrollArea->setBackgroundRole(QPalette::Dark);
					scrollArea->setWidget(imageLabel);
					scrollArea->setGeometry (2,0,460,490);

QLabel *imageLabel = new QLabel(pFilePreviewDlg);
					imageLabel->setAlignment (Qt::AlignCenter);
					imageLabel->setBackgroundRole(QPalette::Base);
					imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
					imageLabel->setPixmap(pixmap);
					
					QScrollArea *scrollArea = new QScrollArea(pFilePreviewDlg);
					scrollArea->setBackgroundRole(QPalette::Dark);
					scrollArea->setWidget(imageLabel);
					scrollArea->setGeometry (2,0,460,490);

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So if any body knows how I can set the image on the center on a dialog then plz help me.

Thanks.

[marcel]

imageLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);

imageLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);

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[vishal.chauhan]

Thanks for reply.

Actually I have tried this but nothing changes.The image is still not in the center of the dialog.

[jpn]

Use QScrollArea::setAlignment(). And use a layout to place the scrollarea into the dialog instead of hardcoding its geometry.

[vishal.chauhan]

Thanks for reply.

But I m using Qt 4.1.5 and it does not have that property for QScrollArea.

[wysota]

Call setWidgetResizable(true) on the scroll area.