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""" Demonstration of the Pmw Balloon megawidget.
"""
# Import Pmw from the sibling directory.
import sys
sys.path[:0] = ['../../..']
import Tkinter
import Pmw
class Demo:
def __init__(self, parent):
# Create the Balloon.
self.balloon = Pmw.Balloon(parent)
# Create some widgets and megawidgets with balloon help.
field = Pmw.EntryField(parent,
labelpos = 'w',
label_text = 'Command:')
field.setentry('mycommand -name foo')
field.pack(padx = 10, pady = 10)
self.balloon.bind(field, 'Command to\nstart/stop',
'Enter the shell command to control')
frame = Tkinter.Frame(parent)
frame.pack(padx = 10, pady = 10)
start = Tkinter.Button(frame, text='Start')
start.pack(side='left', padx = 10)
self.balloon.bind(start, 'Start the command')
stop = Tkinter.Button(frame, text='Stop')
stop.pack(side='left', padx = 10)
self.balloon.bind(stop, 'Stop the command')
self.toggleBalloonVar = Tkinter.IntVar()
self.toggleBalloonVar.set(1)
toggle = Tkinter.Checkbutton(parent,
variable = self.toggleBalloonVar,
text = 'Balloon help', command = self.toggle)
toggle.pack()
self.balloon.bind(toggle, 'Toggle balloon help\non and off')
self.toggleStatusVar = Tkinter.IntVar()
self.toggleStatusVar.set(1)
toggle = Tkinter.Checkbutton(parent,
variable = self.toggleStatusVar,
text = 'Status help', command = self.toggle)
toggle.pack()
self.balloon.bind(toggle, 'Toggle status help\non and off')
canvas = Tkinter.Canvas(parent,
width = 200,
height = 115,
relief = 'sunken',
borderwidth = 2,
)
canvas.pack()
item = canvas.create_arc(5, 5, 35, 35, fill = 'red', extent = 315)
self.balloon.canvasbind(canvas, item, 'This is help for\nan arc item')
item = canvas.create_bitmap(20, 60, bitmap = 'question')
self.balloon.canvasbind(canvas, item, 'This is help for\na bitmap')
item = canvas.create_line(50, 60, 70, 80, 85, 20, width = 5)
self.balloon.canvasbind(canvas, item, 'This is help for\na line item')
item = canvas.create_rectangle(100, 20, 170, 60, fill = 'aliceblue')
self.balloon.canvasbind(canvas, item, 'This is help for\na rectangle')
item = canvas.create_oval(110, 50, 160, 90, fill = 'blue')
self.balloon.canvasbind(canvas, item, 'This is help for\nan oval item')
item = canvas.create_text(100, 100, text = 'Canvas items with balloons')
self.balloon.canvasbind(canvas, item, 'This is help for\na text item')
# Create and pack the MessageBar.
self.messageBar = Pmw.MessageBar(parent,
entry_width = 40,
entry_relief='groove',
labelpos = 'w',
label_text = 'Status:')
self.messageBar.pack(fill = 'x', expand = 1, padx = 10, pady = 10)
# Configure the balloon to display its status messages in the
# message bar.
self.balloon.configure(statuscommand = self.messageBar.helpmessage)
def toggle(self):
if self.toggleBalloonVar.get():
if self.toggleStatusVar.get():
self.balloon.configure(state = 'both')
else:
self.balloon.configure(state = 'balloon')
else:
if self.toggleStatusVar.get():
self.balloon.configure(state = 'status')
else:
self.balloon.configure(state = 'none')
######################################################################
# Create demo in root window for testing.
if __name__ == '__main__':
root = Tkinter.Tk()
Pmw.initialise(root, fontScheme = 'pmw1')
root.title('Pmw Balloon demonstration')
exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy)
exitButton.pack(side = 'bottom')
widget = Demo(root)
root.mainloop()
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