alternative to QMessageBox

[incapacitant]

Ok, I am thick, I can't even call it from my code.

sendMsg sendMsg_dlg( this );
if ( sendMsg_dlg.exec() )
{
  WaitDialog::WaitDialog(200,sendMsg);
}

sendMsg sendMsg_dlg( this );
if ( sendMsg_dlg.exec() )
{
  WaitDialog::WaitDialog(200,sendMsg);
}

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This does not compile:
447 C:\root\dev\Qt\sms data\sms\menu.cpp expected primary-expression before '(' token
447 C:\root\dev\Qt\sms data\sms\menu.cpp expected primary-expression before ')' token

All I am doing is trying random combination, without really understanding all to call your class. Hopeless

But elsewhere I managed to set an icon to my application without asking on the forum. lol

[wysota]

You should learn instead of shooting random. I won't give you the exact code, let it be your homework for today to think and learn how to do it. I'll give you a hint though. You use this dialog like any other dialog. The only difference is the time to wait parameter which you have to use while constructing the dialog.

[incapacitant]

ok, I already understood the way you think about all this and I think it is 100% sane.
I will search and try... thanks

[wysota]

You don't have to search. Just look at the code you already have and *think*.

[incapacitant]

You say that I should consider this dialog as any other one, so I think I found out how to instantiate it as it compiles :

waitDialog_dlg = new WaitDialog::WaitDialog(200, this);

waitDialog_dlg = new WaitDialog::WaitDialog(200, this);

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The trouble now is to invoke the dialog :

if ( waitDialog_dlg.exec() )
{
}

if ( waitDialog_dlg.exec() )
{
}

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compile error :
445 C:\root\dev\Qt\sms data\sms\menu.cpp `exec' has not been declared

With :

if ( WaitDialog::waitDialog_dlg.exec() )
{
}

if ( WaitDialog::waitDialog_dlg.exec() )
{
}

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compile error :
445 C:\root\dev\Qt\sms data\sms\menu.cpp `waitDialog_dlg' is not a member of `WaitDialog'

waitDialog_dlg is a member of my ApplicationWindow class like my other dialogs.

class ApplicationWindow: public QMainWindow
{
    Q_OBJECT
 
public:
  ApplicationWindow();
  ~ApplicationWindow();
 
  // dialog
  Destinataires *Destinataires_dlg;
  Archives *Archives_dlg;
  sendMsg *sendMsg_dlg;
  WaitDialog *waitDialog_dlg;

class ApplicationWindow: public QMainWindow
{
    Q_OBJECT

public:
  ApplicationWindow();
  ~ApplicationWindow();

  // dialog
  Destinataires *Destinataires_dlg;
  Archives *Archives_dlg;
  sendMsg *sendMsg_dlg;
  WaitDialog *waitDialog_dlg;

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I tried to declare the dialog in the WaitDialog class but things get worse...

[wysota]

Oh man... I hate to do this, but I suggest you learn some C++ before trying with Qt.

Check out our links section, especially the one with C++ links. You should start with Thinking in C++ and Correct C++ Tutorial.

[incapacitant]

ok, I will read. Thanks.

[zlatko]

waitDialog_dlg = new WaitDialog(200, this);

waitDialog_dlg = new WaitDialog(200, this);

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[incapacitant]

zlatko:
Thanks I have done that bit to instantiate the dialog.
The trouble remains how to call, display and start the dialog and its timer

[wysota]

Please learn it yourself.

[incapacitant]

I knew zlatko was going to get trouble. Yes, master. I have downloaded the books.

[incapacitant]

wysota: It is true that I have to learn, and I thank you for your attitude.

For info, your class had a bug, the correct code is :

class WaitDialog : public QDialog {
public:
  WaitDialog(uint interval, QWidget *p=0) : QDialog(p)
  {
    QVBoxLayout *l = new QVBoxLayout(this);
    QLabel *lab = new QLabel("Please wait");
    l->addWidget(lab);
    setLayout(l);
    timer.setSingleShot(true);
    timer.setInterval(interval);
    connect(&timer, SIGNAL(timeout()), this, SLOT(accept()));
  }
 
int exec()     // rather than void
{
  timer.start();
  return QDialog::exec();  // needed return
}
 
private:
  QTimer timer;
};

class WaitDialog : public QDialog {
public:
  WaitDialog(uint interval, QWidget *p=0) : QDialog(p)
  {
    QVBoxLayout *l = new QVBoxLayout(this);
    QLabel *lab = new QLabel("Please wait");
    l->addWidget(lab);
    setLayout(l);
    timer.setSingleShot(true);
    timer.setInterval(interval);
    connect(&timer, SIGNAL(timeout()), this, SLOT(accept()));
  }

int exec()     // rather than void
{
  timer.start();
  return QDialog::exec();  // needed return
}

private:
  QTimer timer;
};

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Then to call it :

WaitDialog waitDialog_dlg( 2000, this );
if ( waitDialog_dlg.exec() )
{
}

WaitDialog waitDialog_dlg( 2000, this );
if ( waitDialog_dlg.exec() )
{
}

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I learn slowly, but I am stubborn and I will get there.