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title = 'Pmw.MessageBar demonstration'
# Import Pmw from this directory tree.
import sys
sys.path[:0] = ['../../..']
import tkinter
import Pmw
class Demo:
def __init__(self, parent):
# Create and pack the MessageBar.
self._messagebar = Pmw.MessageBar(parent,
entry_width = 40,
entry_relief='groove',
labelpos = 'w',
label_text = 'Status:')
self._messagebar.pack(side = 'bottom', fill = 'x',
expand = 1, padx = 10, pady = 10)
# Create and pack the ScrolledListBox to change the MessageBar.
self.box = Pmw.ScrolledListBox(parent,
listbox_selectmode='single',
items=('state', 'help', 'userevent', 'systemevent',
'usererror', 'systemerror', 'busy',),
label_text='Message type',
labelpos='n',
selectioncommand=self.selectionCommand)
self.box.pack(fill = 'both', expand = 'yes', padx = 10, pady = 10)
self._index = 0
self._stateCounter = 0
def selectionCommand(self):
sels = self.box.getcurselection()
if len(sels) > 0:
self._index = self._index + 1
messagetype = sels[0]
if messagetype == 'state':
self._stateCounter = (self._stateCounter + 1) % 3
text = stateMessages[self._stateCounter]
if text != '':
text = text + ' (' + messagetype + ')'
self._messagebar.message('state', text)
else:
text = messages[messagetype]
text = text + ' (' + messagetype + ')'
self._messagebar.message(messagetype, text)
if messagetype == 'busy':
Pmw.showbusycursor()
self.box.after(2000)
Pmw.hidebusycursor()
self._messagebar.resetmessages('busy')
text = 'All files successfully removed'
text = text + ' (userevent)'
self._messagebar.message('userevent', text)
messages = {
'help': 'Save current file',
'userevent': 'Saving file "foo"',
'busy': 'Busy deleting all files from file system ...',
'systemevent': 'File "foo" saved',
'usererror': 'Invalid file name "foo/bar"',
'systemerror': 'Failed to save file: file system full',
}
stateMessages = {
0: '',
1: 'Database is down',
2: 'Waiting for reply from database',
}
######################################################################
# Create demo in root window for testing.
if __name__ == '__main__':
root = tkinter.Tk()
Pmw.initialise(root)
root.title(title)
exitButton = tkinter.Button(root, text = 'Exit', command = root.destroy)
exitButton.pack(side = 'bottom')
widget = Demo(root)
root.mainloop()
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