Thread: Creating an object of a class inside another class - possible?

Originally Posted by Elysia

But obviously, you just show the first window, then proceed to show the second window, then immediately return 1 (which really should be true and bool), and goes on to hiding the first dialog.

What do you mean by true and bool? Its true because I returned 1 (a true value) from the function. Are you saying I should do something like this:

Code:

bool int nextDialog() {
//code here
//return 1 //line not needed any more?
}

and then

Code:

if (nextDialog() == true)
  sendHideRequest(dialog);

?

You need to wait for some event that indicates that the "next" button has been pressed before proceeding. How that's done in Qt, I have no idea, though.

Well, the event was supposed to be returning the 1 value (indicating the if statement is true), but for some reason it appears that the if statement calls nextDialog itself. Can I not use a function in a if statement's condition?

You can actually do:

Code:

bool foo () { return true; }
if (foo()) ... ;

Bools are good for true/false.

Ahh...ok. Well, I don't know if you caught this or not, but what my code does is only calls the nextDialog() (and hence, sendNextRequest) function when the next button is clicked. The reason is I only call nextDialog from inside nextClicked(), and nextClicked() is only called when the Next button (of the first dialog) is pressed. So that's how I know the if statement is calling nextDialog, since I can only see the second dialog when the program opens.

But I'll try using the bool method, and maybe that will work...

Code:

#include <QApplication>
#include <QDialog>
#include <QPushButton>

class TextToSpeechDialog2 : public QDialog {
  Q_OBJECT
public:
  TextToSpeechDialog2(void) {
    setWindowTitle("TextToSpeechDialog2"); setFixedSize(320, 240);
  }
};

class TextToSpeechDialog1 : public QDialog {
  Q_OBJECT
public:
  TextToSpeechDialog1(void)
      : QDialog(), nextButton("Next", this) //initialize next button
  {
    setWindowTitle("TextToSpeechDialog1"); setFixedSize(320, 240);
    QObject::connect(&nextButton, SIGNAL(clicked()), this, SLOT(nextClicked()));
  }
public slots:
  void nextClicked(void) {
    hide();         //hide TextToSpeechDialog1
    dialog2.show(); //show TextToSpeechDialog2
  }
private:
  TextToSpeechDialog2 dialog2;
  QPushButton nextButton;
};

int main(int argc, char *argv[]) {
  QApplication app(argc, argv);
  TextToSpeechDialog1 dialog1;
  dialog1.show();
  return app.exec();
}

Sorry, I don't get why you'll need the global function especially why you put that inside the main which will be executed after your first dialog shown up, you may try the code above.