[Qt-interest] QMetaObject doesn't know about methods on QObject

[Stephen Kelly]

Thiago Macieira wrote:

> On Friday 09 January 2009 12:28:31 Stephen Kelly wrote:
>> Anyone know what's going on here? Am I missing something important?
> 
> Looks like the documentation is a bit misleading.
> 
> The meta object contains normal methods but only as long as you've asked
> moc to read them. You have to prefix each method declaration in your class
> that you intend to be extracted by moc with Q_INVOKABLE.

Great thanks. I think that's exactly what I need.

I also discovered that I need to use Q_ENUMS() with the enum names separated by spaces to make the enums available.

class MyClass : public QObject
{
Q_OBJECT
  public:

  Q_ENUMS(MyEnum MyOtherEnum)

  enum MyEnum {
    One,
    Two
  };

  enum MyOtherEnum {
    First,
    Second
  };
  
  MyClass();
  Q_INVOKABLE void setSomething(int i =0);
  Q_INVOKABLE int getSomething() const;
};

********

  qDebug() << "enums:";

  for ( int i = 0; i < mObj->enumeratorCount(); ++i )
  {
    QMetaEnum me = mObj->enumerator(i);
    qDebug() << "enum name" << me.name();

    for ( int j=0; j < me.keyCount(); ++j )
    {
        qDebug() << me.key(j) << "=" << me.value(j);
    }
  }

*********

enums:
enum name MyEnum
One = 0
Two = 1
enum name MyOtherEnum
First = 0
Second = 1


Thanks for the help,

Steve

> 
> i.e.:
> 
> class MyClass : public QObject
> {
> Q_OBJECT
> public:
> MyClass();
> 
> Q_INVOKABLE void setSomething(int);
> Q_INVOKABLE int getSomething() const;
> 
> Q_SCRIPTABLE void scriptableCall();
> 
> Q_SLOT void aSlot();
> Q_SIGNAL void aSignal();
> };
> 
> Q_SCRIPTABLE is like Q_INVOKABLE but sets an extra flag. It's meant to be
> used with QtScript and QtDBus. It can also be set on slots and signals.
> 
> The Q_SLOT and Q_SIGNAL (note singular) macros are meant to complement the
> feature set.