[SOLVED] Reusable function/slot to copy text from multiple buttons to the clipboard
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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
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Hi,
You can use one slot and use qobject_cast and sender() to get the button, or use a QButtonGroup
Hope it helps
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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.. :)
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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.
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[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.
