| 1 | title = 'Modal dialog nesting demonstration' |
| 2 | |
| 3 | # Import Pmw from this directory tree. |
| 4 | import sys |
| 5 | sys.path[:0] = ['../../..'] |
| 6 | |
| 7 | import Tkinter |
| 8 | import Pmw |
| 9 | |
| 10 | class Demo: |
| 11 | def __init__(self, parent): |
| 12 | # Create button to launch the dialog. |
| 13 | w = Tkinter.Button(parent, text = 'Show first dialog', |
| 14 | command = self.showFirstDialog) |
| 15 | w.pack(padx = 8, pady = 8) |
| 16 | |
| 17 | self.timerId = None |
| 18 | |
| 19 | self.dialog1 = Pmw.MessageDialog(parent, |
| 20 | message_text = 'This is the first modal dialog.\n' + |
| 21 | 'You can see how dialogs nest by\n' + |
| 22 | 'clicking on the "Next" button.', |
| 23 | title = 'Dialog 1', |
| 24 | buttons = ('Next', 'Cancel'), |
| 25 | defaultbutton = 'Next', |
| 26 | command = self.next_dialog) |
| 27 | self.dialog1.withdraw() |
| 28 | |
| 29 | self.dialog2 = Pmw.Dialog(self.dialog1.interior(), |
| 30 | title = 'Dialog 2', |
| 31 | buttons = ('Cancel',), |
| 32 | deactivatecommand = self.cancelTimer, |
| 33 | defaultbutton = 'Cancel') |
| 34 | self.dialog2.withdraw() |
| 35 | w = Tkinter.Label(self.dialog2.interior(), |
| 36 | text = 'This is the second modal dialog.\n' + |
| 37 | 'It will automatically disappear shortly') |
| 38 | w.pack(padx = 10, pady = 10) |
| 39 | |
| 40 | def showFirstDialog(self): |
| 41 | self.dialog1.activate() |
| 42 | |
| 43 | def cancelTimer(self): |
| 44 | if self.timerId is not None: |
| 45 | self.dialog2.after_cancel(self.timerId) |
| 46 | self.timerId = None |
| 47 | |
| 48 | def deactivateSecond(self): |
| 49 | self.timerId = None |
| 50 | self.dialog2.deactivate() |
| 51 | |
| 52 | def next_dialog(self, result): |
| 53 | if result != 'Next': |
| 54 | self.dialog1.deactivate() |
| 55 | return |
| 56 | |
| 57 | self.timerId = self.dialog2.after(3000, self.deactivateSecond) |
| 58 | self.dialog2.activate() |
| 59 | |
| 60 | ###################################################################### |
| 61 | |
| 62 | # Create demo in root window for testing. |
| 63 | if __name__ == '__main__': |
| 64 | root = Tkinter.Tk() |
| 65 | Pmw.initialise(root) |
| 66 | root.title(title) |
| 67 | |
| 68 | exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy) |
| 69 | exitButton.pack(side = 'bottom') |
| 70 | widget = Demo(root) |
| 71 | root.mainloop() |