[SOLVED] Reusable function/slot to copy text from multiple buttons to the clipboard

[fs_tigre]

Hi,

I have 10 buttons where its text is constantly changing based on some calculations (I'm using a button instead of a QLabel). What I want is to be able to copy its own text to the clipboard when it is clicked.

I have no problems doing this, I could add a slot to each button and add the following code to each one...

@void MainWindow::on_buttonName_clicked()
{
QClipboard *clip = QApplication::clipboard();
QString input = ui->buttonName->text();
clip->setText(input);
}@

... and everything should be fine but what I would like to be able to do is to reuse the same function/slot for all of them, in other words instead of creating 10 different slots I would like to be able to create just one and call it from each button, something like...

@void MainWindow::reusableFunction()
{
QClipboard *clip = QApplication::clipboard();
QString input = this->buttonName->text();
clip->setText(input);
}@

Can some one give me an idea or point me to where I can find that informaiton?

I hope it make sense what I want to accomplish here.

Thanks

[SGaist]

Hi,

You can use one slot and use qobject_cast and sender() to get the button, or use a QButtonGroup

Hope it helps

[raven-worx]

i don't like the method, but it will help you in your situation.
you can use the QObject::sender() :
@
void MainWindow::reusableFunction()
{
QPushButton* button = qobject_cast<QPushButton*>( sender() );
if( button )
{
QClipboard *clip = QApplication::clipboard();
clip->setText( button->text() );
}
}
@
But note that it actually breaks the object-orientated principle and only works when you connect to the slot with direct connection.

Edit: and once again too late.. :)

[KA51O]

Another solution could be to keep all buttons in a list or vector and use the index of the button in this list or vector with the "QSignalMapper":http://qt-project.org/doc/qt-4.8/qsignalmapper.html . Then you could use the index in the setMapping() function.

But I would prefer raven-worx approach.

[fs_tigre]

raven-worx's sample worked. Thanks a lot.

You mentioned that you don't like this method, what is that you don't like about it?

Thanks

[raven-worx]

[quote author="raven-worx" date="1383742018"]
But note that it actually breaks the object-orientated principle and only works when you connect to the slot with direct connection.
[/quote]

it's an error-prone approach, but as you can see it does it's job. It's just my favor.

[fs_tigre]

Ok, thanks a lot for your help.