saveGeometry in X11

[arjunasd]

Hi all

I am trying to remember the size and location of the mainwindow from previous session in X11. Qt documentation suggests 2 methods:

1) To use saveGeometry and restoreGeometry. This works fine with saving the size but the position is not consistent. From what I see, the position is remembered for one closeEvent and then from the second time it moves the window to top-left corner.

2) To save pos and size.

Doesn't method 1) work for X11?

Thanks
Arjun

[marcel]

Yes, it does work on X11 too.
How do you do it? Can you show us the code?
I do not quite understand your explanation at point 1).

Regards

[arjunasd]

void writeSettings() {
QSettings settings("Z", "X");
settings.setValue("geometry", saveGeometry());
}


void readSettings() {
QSettings settings("Z", "X");
restoreGeometry(settings.value("geometry").toByteA rray());
}

The size is maintained but the position of the window is not remembered at all times. It is remembered only when the position is changed in the current execution.

Thanks
Arjun

[marcel]

Weird enough.
Could you examine the settings, or the QByteArray, between two sessions?

[arjunasd]

Sorry if this is a naive question.

Where do they get saved? Else how to check there contents using qDebug()?

Thanks
Arjun

[marcel]

Probably they are saved in the home directory.
On Mac they are saved in the app directory.

qDebug("%s\n", saveGeometry().constData());

qDebug("%s\n", saveGeometry().constData());

To copy to clipboard, switch view to plain text mode 

Regards

[arjunasd]

qDebug("%s\n", saveGeometry().constData());

I tried that but its printing some special characters. So I guess I need to go over each byte and print it as a character.

Is there any other better way to check the contents?

Thanks
Arjun

[marcel]

There should be the coordinates.
Try

QString str(saveGeometry());
qDebug("%s", str.toAscii().constData());

QString str(saveGeometry());
qDebug("%s", str.toAscii().constData());

To copy to clipboard, switch view to plain text mode 

[arjunasd]

Sorry to bother you again. But it prints the same special characters even now.

Thanks
Arjun

[marcel]

Well, I just read in the docs that this doesn't work on X11( the set/restoreGeometry stuff).
They suggest using the following:

void MainWindow::readSettings()
 {
     QSettings settings("Trolltech", "Application Example");
     QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
     QSize size = settings.value("size", QSize(400, 400)).toSize();
     resize(size);
     move(pos);
 }
 
 void MainWindow::writeSettings()
 {
     QSettings settings("Trolltech", "Application Example");
     settings.setValue("pos", pos());
     settings.setValue("size", size());
 }

void MainWindow::readSettings()
 {
     QSettings settings("Trolltech", "Application Example");
     QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
     QSize size = settings.value("size", QSize(400, 400)).toSize();
     resize(size);
     move(pos);
 }

 void MainWindow::writeSettings()
 {
     QSettings settings("Trolltech", "Application Example");
     settings.setValue("pos", pos());
     settings.setValue("size", size());
 }

To copy to clipboard, switch view to plain text mode 

Meaning that you must save the geometry manually.
Should work,

Regards

[arjunasd]

Marcel

Thanks a lot.
Still I would like to know whats being saved. Just out of curiosity. If you know a method to print out the contents of QByteArray, let me know.

Thanks again for your help
Arjun