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Diffstat (limited to 'uitools/Alerts.py')
| -rw-r--r-- | uitools/Alerts.py | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/uitools/Alerts.py b/uitools/Alerts.py new file mode 100644 index 0000000..ef8c8e4 --- /dev/null +++ b/uitools/Alerts.py @@ -0,0 +1,206 @@ +#!/usr/bin/env python +###################################################################### +# This module provides some standard Alert dialogs. +# This is a blatant imitation -- er, flattery -- of the tkdialogs +# package, with extensions. +# +# Mitch Chapman +#--------------------------------------------------------------------- +# $Log: Alerts.py,v $ +# Revision 1.1 1996/12/01 22:58:54 mchapman +# Initial revision +# +###################################################################### + +__version__ = "$Revision: 1.1 $" + +import Tkinter; Tk=Tkinter +import Shells, StdDialog, ProgressBar + +###################################################################### +# This is yer basic Alert type. +###################################################################### +class T(Shells.Modal): + ################################################################## + # Initialize a new instance. + ################################################################## + def __init__(self, master, title="Alert", msg="[your message here]"): + Shells.Modal.__init__(self, master) + self.controls = StdDialog.Controls(self) + self.msg = msg + self.top.title(title) + self.justify = "center" + + frame = self.frame = self.controls.frame + + bm = self.bitmap = Tk.Label(frame) + bm.pack(side='left') + + l = self.msgLabel = Tk.Label(frame, text=msg) + l.pack(side='top', fill='x', expand='yes') + + self.btnBox = self.controls.btnBox + + # For easier override/extend in subclasses + show = Shells.Modal.show + + ################################################################## + # Standard callbacks for the various types of buttons. + ################################################################## + def okCB(self, event=None): + self.result = 1 + self.terminate() + + def cancelCB(self, event=None): + self.result = 0 + self.terminate() + + +###################################################################### +# And now for some common alerts: +###################################################################### + +###################################################################### +# Display an error message. +###################################################################### +class Error(T): + def __init__(self, master, title="Error", msg="Error"): + T.__init__(self, master, title, msg) + self.bitmap['bitmap'] = 'error' + self.btnBox.addButtons(["OK", self.okCB]) + + # For easier override/extend in subclasses + show = T.show + + +###################################################################### +# Display a warning. +###################################################################### +class Warning(T): + def __init__(self, master, title="Warning", msg="Warning", + okLabel="Yes", cancelLabel="No"): + T.__init__(self, master, title, msg) + self.bitmap['bitmap'] = 'warning' + self.btnBox.addButtons([okLabel, self.okCB], + [cancelLabel, self.cancelCB]) + + # For easier override/extend in subclasses + show = T.show + + +###################################################################### +# Display a question. +###################################################################### +class Question(T): + def __init__(self, master, title="Question", msg="?", + okLabel="Yes", cancelLabel="No"): + T.__init__(self, master, title, msg) + self.bitmap['bitmap'] = 'question' + self.btnBox.addButtons([okLabel, self.okCB], + [cancelLabel, self.cancelCB]) + + # For easier override/extend in subclasses + show = T.show + + +###################################################################### +# Display some information. +###################################################################### +class Info(T): + def __init__(self, master, title="Info", msg="I", + okLabel="OK"): + T.__init__(self, master, title, msg) + self.bitmap['bitmap'] = 'info' + self.btnBox.addButtons([okLabel, self.okCB]) + + # For easier override/extend in subclasses + show = T.show + + +###################################################################### +# Display instructions for the user. +###################################################################### +class Instruction(T): + def __init__(self, master, title="Instruction", msg="", + okLabel="Continue", cancelLabel="Cancel"): + T.__init__(self, master, title, msg) + self.bitmap.destroy() + self.btnBox.addButtons([okLabel, self.okCB], + [cancelLabel, self.cancelCB]) + + # For easier override/extend in subclasses + show = T.show + + +###################################################################### +# A progress dialog shows progress, i.e. percent-completion of a task. +###################################################################### +class Progress(T): + def __init__(self, master, title="Progress", msg="", + cancelLabel="Cancel"): + T.__init__(self, master, title, msg) + self.bitmap.destroy() + self.progressBar = ProgressBar.T(self.frame) + self.btnBox.addButtons([cancelLabel, self.cancelCB]) + self.progressBar.frame.pack(fill='x') + + # For easier overriding/extension in subclasses: + show = T.show + + ################################################################## + # Update the progress slider. + # percentComplete should be in the range 0..100, inclusive. + ################################################################## + def update(self, percentComplete): + self.progressBar.update(percentComplete) + + +###################################################################### +# Main function for unit testing. +###################################################################### +def main(): + f = Shells.Main() + l = Tk.Label(f, text="I'm just here for looks,\nreally.") + l.pack() + f.pack() + f.master.geometry("+100+100") + e = Error(f, msg="An unrecoverable error\nhas occurred.") + print "Error:", e.show() + w = Warning(f, msg="Since that error occurred, do you want to go on?") + print "Warning:", w.show() + print "Question:", Question(f, msg="No, I mean\ndo you really want\n" + "to go on?").show() + print "Info:", Info(f, msg="This parrot is dead.").show() + print "Instruction:", Instruction(f, + msg='Insert a blank tape and press ' + '"Continue".').show() + + class ProgressTest(Progress): + def __init__(self, master, title="Progress", msg=""): + Progress.__init__(self, master, title, msg) + self.value = 0 + + def show(self): + # Start the timer before showing, because Progress.show + # won't return until after the user has dismissed the dialog. + self.timerID = self.top.after(500, self.update) + result = Progress.show(self) + self.top.after_cancel(self.timerID) + return result + + def update(self, event=None): + self.value = self.value + 1 + Progress.update(self, self.value) + if self.value < 100: + self.timerID = self.top.after(40, self.update) + else: + self.result = 1 + self.terminate() + + + print "Progress:", ProgressTest(f, + msg="Reading Enc. Britannica").show() + + +if __name__ == "__main__": + main() |