To set icon size to the button size in Qt-S60

[prajna123]

Dear All,
I am trying to display the images on the buttons.
I am able to display it.........But what I want is irrespective of the size(That is,less or of greater size than button parameters.)of the image, picture should fit exactly into the button size.

Images gets displayed upon buttons if greater or less than the button size but it won't get fit into the button parameters.
I have set the icon size to the button size using mainImage->setIconSize(QSize(100,160)); API.

But its not taking any effect.....
Need help on this.....

Below is the code I am using..
mainImage = new QPushButton(this);
mainImage->move(25,210);
mainImage->setIconSize(QSize(100,160));
mainImage->setGeometry(70,10,100,160);
mainImage->setFocusPolicy(Qt::TabFocus);
mainImage->show();

QString Imagename(*it5);
NextImagepath = "c:\\Data\\Images\\Pictures\\"+Imagename;
QPixmap imagedisplay(NextImagepath);
QIcon icon(imagedisplay);
mainImage->setIcon(icon);


I am using .jpg image of size 41KB.

Note:
I am using Qt-S60 temple release.

Thanks,
Prajna

[james1980]

Hi prajna123,

What pixel size image you are using for the displaying on the button?

You can try resizeing your pixmap.
Use the code

imagedisplay.scaledToHeight(88);
imagedisplay.scaledToWidth(88);

Hope this will helps you.

Regards

[savaj]

Also check if QPixmap::scaled() will help.

[prajna123]

I am using image of pixel size 270 * 216
May be we have to maintain the aspect ratio


Tried using
imagedisplay.scaledToHeight(88);
imagedisplay.scaledToWidth(88); but it is not taking any effect

Need help on this

[james1980]

I am using image of pixel size 270 * 216
May be we have to maintain the aspect ratio


Tried using
imagedisplay.scaledToHeight(88);
imagedisplay.scaledToWidth(88); but it is not taking any effect

Need help on this

Hi,
Your image size is changed or remain as it is?

[james1980]

Hi,
One more thing, its not necessary to maintain the aspect ratio also. Its working for my case. You have to maintain the same size of the button and image....

[savaj]

imagedisplay.scaledToHeight(88);
imagedisplay.scaledToWidth(88);

Remember: QPixmap::scaledToHeight(),QPixmap::scaledToWidth(),and QPixmap::scaled() method will not scale your exising QPixmap. It will return a new QPixmap with scaled value.

So you can try something like.

QPixmap imagedisplay(NextImagepath);
QPixmap scaledImage(imagedisplay.scaled(QSize(88,88)));
QIcon icon(scaledImage);

Or

QPixmap imagedisplay(NextImagepath);
QIcon icon(imagedisplay.scaled(QSize(88,88)));

Hope this might help you.

[prajna123]

Thanks a lot.
Below code worked for me.

QPixmap imagedisplay(NextImagepath);
QIcon icon(imagedisplay.scaled(QSize(88,88)));

[savaj]

Also i am Damn sure that first method (suggested in my previous post) will also work.

[prajna123]

sssssss I checked that also.
It worked.
Thank you

[jayanta_dn]

Dear All,
I want to share another idea.

I am using resource files for loading icons. I am trying to resize using the standard setIconSize() method. My problem was the icons were not getting larger, although I was able to shrink them.

To solve this, I had to open the images in another external image editor, increase the size and then load once again in the resource.

Look obvious right