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""" Demonstration of the Pmw EntryField megawidget.
"""
# Import Pmw from the sibling directory.
import sys
sys.path[:0] = ['../../..']
import Tkinter
import Pmw
class Demo:
def __init__(self, parent):
# Create and pack the EntryFields.
self._any = Pmw.EntryField(parent,
labelpos = 'w',
label_text = 'Any:',
command = self.execute)
self._real = Pmw.EntryField(parent,
labelpos = 'w',
value = '+2.9979e+8',
label_text = 'Real:',
validate = 'real',
modifiedcommand = self.changed)
self._odd = Pmw.EntryField(parent,
labelpos = 'w',
label_text = 'Odd length:',
value = 'ABC',
validate = self.custom_validate)
entries = (self._any, self._real, self._odd)
for entry in entries:
entry.pack(fill='x', expand=1, padx=10, pady=5)
Pmw.alignlabels(entries)
self._any.component('entry').focus_set()
def changed(self):
print 'Text changed, value is', self._real.get()
def execute(self):
print 'Return pressed, value is', self._any.get()
# This implements a custom validation routine. It simply checks
# if the string is of odd length.
def custom_validate(self, text):
print 'text:', text
if len(text) % 2 == 0:
return -1
else:
return 1
######################################################################
# Create demo in root window for testing.
if __name__ == '__main__':
root = Tkinter.Tk()
Pmw.initialise(root, fontScheme = 'pmw1')
root.title('Pmw EntryField demonstration')
exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy)
exitButton.pack(side = 'bottom')
widget = Demo(root)
root.mainloop()
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