py qt newbie itemDoubleClicked?

[gateway]

I create a small designer gui with a button that loads in some files from a db, and displays them in a window, my next step is I want to double click on the output and launch or do something.. for example double click on an item in the list and pop up a window saying ok, just as a start.

here is some of the code but so far I cant get double click to work for some reason.

class StartQT4(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_notepad()
        self.ui.setupUi(self)
        # here we connect signals with our slots
        QtCore.QObject.connect(self.ui.editor_window,QtCore.SIGNAL("itemDoubleClicked()"), self.open_preview)
        QtCore.QObject.connect(self.ui.button_open,QtCore.SIGNAL("clicked()"), self.file_dialog)
    def file_dialog(self):
        self.ui.editor_window.addItems(list)
    def open_preview(self):
        self.ui.bottom_window.addItems('adsfakdsfadfadsfasdf')
 
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp = StartQT4()
    myapp.show()
    sys.exit(app.exec_())

class StartQT4(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_notepad()
        self.ui.setupUi(self)
        # here we connect signals with our slots
        QtCore.QObject.connect(self.ui.editor_window,QtCore.SIGNAL("itemDoubleClicked()"), self.open_preview)
        QtCore.QObject.connect(self.ui.button_open,QtCore.SIGNAL("clicked()"), self.file_dialog)
    def file_dialog(self):
        self.ui.editor_window.addItems(list)
    def open_preview(self):
        self.ui.bottom_window.addItems('adsfakdsfadfadsfasdf')
  
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp = StartQT4()
    myapp.show()
    sys.exit(app.exec_())

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right now if i double click on something it should print adsfakdsfadfadsfasdf in bottom_window

any thoughts?

[aamer4yu]

You can override the function QWidget::mouseDoubleClickEvent to catch the double click.
You could do something like..

YourWindow::mouseDoubleClickEvent( QMouseEvent * event )  
{
      statusBar()->showMessage("Mouse double clicked");
}

YourWindow::mouseDoubleClickEvent( QMouseEvent * event )  
{
      statusBar()->showMessage("Mouse double clicked");
}

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Hope thiss helps....

[giverson]

translated to Python...place this in the QMainWindow class

You can use the passed in event to get x, y coords for the click, as well.

def mouseDoubleClickEvent(self, event):
        statusBar().showMessage("Mouse double clicked")

def mouseDoubleClickEvent(self, event):
        statusBar().showMessage("Mouse double clicked")

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[giverson]

think we misread what you were trying to do earlier...I do see where you pulled the example for that.

For that, I would suggest going with QListWidget instead. It has built in support for item selection and stuff like that and is built especially for that. Overload the QListWidget to create a custom widget and overwrite those member classes in your custom QListWidget.

I don't know if that ui_widget has that slot or not because I've never messed with the edytor library.

http://docs.huihoo.com/pyqt/pyqt4/html/qlistwidget.html

Also, I would use addItem instead of addItems for adding 1 item. Probably incurs less overhead.

And if you go to that link and go up 1 folder, it has all the Qt classes that Trolltech provides documentation before except the documentation is for Python and PyQt. Enjoy.