git.maemo.org Git - gc-dialer/blob - hand_tests/double_disconnect.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import with_statement
   4 from __future__ import division
   5
   6 import sys
   7 import logging
   8
   9 PYSIDE = False
  10 DISCONNECT_ON_DELETE = False
  11
  12 if PYSIDE:
  13         import PySide.QtCore as QtCore
  14         import PySide.QtGui as QtGui
  15 else:
  16         import PyQt4.QtCore as QtCore
  17         import PyQt4.QtGui as QtGui
  18
  19
  20 _moduleLogger = logging.getLogger(__name__)
  21
  22
  23 class Signaller(QtCore.QObject):
  24
  25         if PYSIDE:
  26                 s1 = QtCore.Signal()
  27                 s2 = QtCore.Signal()
  28         else:
  29                 s1 = QtCore.pyqtSignal()
  30                 s2 = QtCore.pyqtSignal()
  31
  32
  33 class Window(object):
  34
  35         def __init__(self, s):
  36                 self._window = QtGui.QMainWindow()
  37                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
  38                 self._window.setWindowTitle("Demo!")
  39                 if DISCONNECT_ON_DELETE:
  40                         self._window.destroyed.connect(self._on_destroyed)
  41
  42                 self._s = s
  43                 self._s.s1.connect(self._on_signal)
  44                 self._s.s2.connect(self._on_signal)
  45
  46         def show(self):
  47                 self._window.show()
  48
  49         def _on_signal(self):
  50                 print "Signal!"
  51                 self._window.setWindowTitle("Signaled!")
  52
  53         def _on_destroyed(self, obj = None):
  54                 print "Main window destroyed"
  55                 self._s.s1.disconnect(self._on_signal)
  56                 self._s.s2.disconnect(self._on_signal)
  57
  58
  59 if __name__ == "__main__":
  60         app = QtGui.QApplication([])
  61
  62         s = Signaller()
  63         w = Window(s)
  64         w.show()
  65
  66         val = app.exec_()
  67         del w
  68
  69         print "s1"
  70         s.s1.emit()
  71         print "s2"
  72         s.s2.emit()
  73
  74         print "Exiting"
  75         sys.exit(val)