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- # tk common message boxes
- #
- # this module provides an interface to the native message boxes
- # available in Tk 4.2 and newer.
- #
- # written by Fredrik Lundh, May 1997
- #
- #
- # options (all have default values):
- #
- # - default: which button to make default (one of the reply codes)
- #
- # - icon: which icon to display (see below)
- #
- # - message: the message to display
- #
- # - parent: which window to place the dialog on top of
- #
- # - title: dialog title
- #
- # - type: dialog type; that is, which buttons to display (see below)
- #
- from tkinter.commondialog import Dialog
- __all__ = ["showinfo", "showwarning", "showerror",
- "askquestion", "askokcancel", "askyesno",
- "askyesnocancel", "askretrycancel"]
- #
- # constants
- # icons
- ERROR = "error"
- INFO = "info"
- QUESTION = "question"
- WARNING = "warning"
- # types
- ABORTRETRYIGNORE = "abortretryignore"
- OK = "ok"
- OKCANCEL = "okcancel"
- RETRYCANCEL = "retrycancel"
- YESNO = "yesno"
- YESNOCANCEL = "yesnocancel"
- # replies
- ABORT = "abort"
- RETRY = "retry"
- IGNORE = "ignore"
- OK = "ok"
- CANCEL = "cancel"
- YES = "yes"
- NO = "no"
- #
- # message dialog class
- class Message(Dialog):
- "A message box"
- command = "tk_messageBox"
- #
- # convenience stuff
- # Rename _icon and _type options to allow overriding them in options
- def _show(title=None, message=None, _icon=None, _type=None, **options):
- if _icon and "icon" not in options: options["icon"] = _icon
- if _type and "type" not in options: options["type"] = _type
- if title: options["title"] = title
- if message: options["message"] = message
- res = Message(**options).show()
- # In some Tcl installations, yes/no is converted into a boolean.
- if isinstance(res, bool):
- if res:
- return YES
- return NO
- # In others we get a Tcl_Obj.
- return str(res)
- def showinfo(title=None, message=None, **options):
- "Show an info message"
- return _show(title, message, INFO, OK, **options)
- def showwarning(title=None, message=None, **options):
- "Show a warning message"
- return _show(title, message, WARNING, OK, **options)
- def showerror(title=None, message=None, **options):
- "Show an error message"
- return _show(title, message, ERROR, OK, **options)
- def askquestion(title=None, message=None, **options):
- "Ask a question"
- return _show(title, message, QUESTION, YESNO, **options)
- def askokcancel(title=None, message=None, **options):
- "Ask if operation should proceed; return true if the answer is ok"
- s = _show(title, message, QUESTION, OKCANCEL, **options)
- return s == OK
- def askyesno(title=None, message=None, **options):
- "Ask a question; return true if the answer is yes"
- s = _show(title, message, QUESTION, YESNO, **options)
- return s == YES
- def askyesnocancel(title=None, message=None, **options):
- "Ask a question; return true if the answer is yes, None if cancelled."
- s = _show(title, message, QUESTION, YESNOCANCEL, **options)
- # s might be a Tcl index object, so convert it to a string
- s = str(s)
- if s == CANCEL:
- return None
- return s == YES
- def askretrycancel(title=None, message=None, **options):
- "Ask if operation should be retried; return true if the answer is yes"
- s = _show(title, message, WARNING, RETRYCANCEL, **options)
- return s == RETRY
- # --------------------------------------------------------------------
- # test stuff
- if __name__ == "__main__":
- print("info", showinfo("Spam", "Egg Information"))
- print("warning", showwarning("Spam", "Egg Warning"))
- print("error", showerror("Spam", "Egg Alert"))
- print("question", askquestion("Spam", "Question?"))
- print("proceed", askokcancel("Spam", "Proceed?"))
- print("yes/no", askyesno("Spam", "Got it?"))
- print("yes/no/cancel", askyesnocancel("Spam", "Want it?"))
- print("try again", askretrycancel("Spam", "Try again?"))
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