[SOLVED] Error with setRect in QRect

guidupas

Hello all!

I have a QRect and when I try to setRect it return this error

/QT/Projetos/VisaoFinanceira/fluxocaixawidget.cpp:174: error: member function 'setRect' not viable: 'this' argument has type 'const QRect', but function is not marked const
fluxoRect.at(i).setRect(7,7,7,7);

Thanks.

Here is the code:
@
QList<QRect> fluxoRect;

fluxoRect.append(QRect(0,0,0,0));

fluxoRect.at(i).setRect(7,7,7,7);
@

Saugglocke

Hey,

look at the definition of the at method:
const T & at(int i) const

QList returns a const reference to your QRect, hence you're not allowed to alter it.

You have to do something like this:
@ QList<QRect> fluxoRect;

fluxoRect.append(QRect(0,0,0,0));

QRect r = fluxoRect.takeAt(i);
r.setRect(7, 7, 7, 7);
fluxoRect.replace(i, r);@

bb

SGaist

Hi,

at is a constant function so you can't modify it's returned value like that.

Either use the value method or the [] operator.

You can also take the rect modify it and replace the original value with the new value.

Hope it helps

guidupas

Thank you for the replies Saugglocke and SGaist

It worked.

@
fluxoRect.at(i).replace(QRect(7,7,7,7));
@