Problems about Qt signals and compilation errors

[Jekzer]

Hi all !

Well, I am working for my first time in life with Qt libs and I have a few problems.

First, I want to make a QApplication very simple to practise signal/slots functionality.

The idea is: A QFrame with 1 Qlabel, 1QPushbutton and 1 QLineEdit. When you write something in the line edit, it is printed ( char by char) on the label. The button is used to exit ( close()). Quite easy.

Second exercise: the same thing but now, if you write something, it is displayed on the label with capital letters the even chars and normal letters the odd.

So I need to specialise QLabel with a new class that inherits from it, with a new slot setText(const QString &).

Here is my code:

#include <QString>
#include <QObject>
#include <QLabel>

class QLabelMM : public QLabel {

Q_OBJECT

public:

LabelMM();

public slots:

void setTextMM( const QString &text){

//const QString str = text;

for(int i = 0; i < text.length(); i++)
{
if(i%2 == 0) text.data()[i] = text.data()[i] +20;
}
}


}

Don't bother about macros like Q_OBJECT, qmake takes care of it.

And my errors: lab1.cpp:23: error: expected unqualified-id at end of input (line 23 is the "}" that closes the slot

Any thoughts that what is failing?

Another thing is that I don't think that is correct the way I pass from capitals to normals (text.data()[i] +20) but that is another question that I hope to resolve on my own :p!

[newb16]

Another thing is that I don't think that is correct the way I pass from capitals to normals (text.data()[i] +20) but that is another question that I hope to resolve on my own :p!

Last time I used it, qt was moc-ing only .h files , but not .cpp - did it change now? If not, move declaration to .h and definition to .cpp. And, not qt-specifical, if you declared text argument as "const Qstring&", why do you change text.data in function? Pass it by value, textMM(QString text) and then modify.