1 # tk common message boxes 2 # 3 # this module provides an interface to the native message boxes 4 # available in Tk 4.2 and newer. 5 # 6 # written by Fredrik Lundh, May 1997 7 # 8 9 # 10 # options (all have default values): 11 # 12 # - default: which button to make default (one of the reply codes) 13 # 14 # - icon: which icon to display (see below) 15 # 16 # - message: the message to display 17 # 18 # - parent: which window to place the dialog on top of 19 # 20 # - title: dialog title 21 # 22 # - type: dialog type; that is, which buttons to display (see below) 23 # 24 25 from tkinter.commondialog import Dialog 26 27 # 28 # constants 29 30 # icons 31 ERROR = "error" 32 INFO = "info" 33 QUESTION = "question" 34 WARNING = "warning" 35 36 # types 37 ABORTRETRYIGNORE = "abortretryignore" 38 OK = "ok" 39 OKCANCEL = "okcancel" 40 RETRYCANCEL = "retrycancel" 41 YESNO = "yesno" 42 YESNOCANCEL = "yesnocancel" 43 44 # replies 45 ABORT = "abort" 46 RETRY = "retry" 47 IGNORE = "ignore" 48 OK = "ok" 49 CANCEL = "cancel" 50 YES = "yes" 51 NO = "no" 52 53 54 # 55 # message dialog class 56 57 class Message(Dialog): 58 "A message box" 59 60 command = "tk_messageBox" 61 62 63 # 64 # convenience stuff 65 66 # Rename _icon and _type options to allow overriding them in options 67 def _show(title=None, message=None, _icon=None, _type=None, **options): 68 if _icon and "icon" not in options: options["icon"] = _icon 69 if _type and "type" not in options: options["type"] = _type 70 if title: options["title"] = title 71 if message: options["message"] = message 72 res = Message(**options).show() 73 # In some Tcl installations, yes/no is converted into a boolean. 74 if isinstance(res, bool): 75 if res: 76 return YES 77 return NO 78 # In others we get a Tcl_Obj. 79 return str(res) 80 81 def showinfo(title=None, message=None, **options): 82 "Show an info message" 83 return _show(title, message, INFO, OK, **options) 84 85 def showwarning(title=None, message=None, **options): 86 "Show a warning message" 87 return _show(title, message, WARNING, OK, **options) 88 89 def showerror(title=None, message=None, **options): 90 "Show an error message" 91 return _show(title, message, ERROR, OK, **options) 92 93 def askquestion(title=None, message=None, **options): 94 "Ask a question" 95 return _show(title, message, QUESTION, YESNO, **options) 96 97 def askokcancel(title=None, message=None, **options): 98 "Ask if operation should proceed; return true if the answer is ok" 99 s = _show(title, message, QUESTION, OKCANCEL, **options) 100 return s == OK 101 102 def askyesno(title=None, message=None, **options): 103 "Ask a question; return true if the answer is yes" 104 s = _show(title, message, QUESTION, YESNO, **options) 105 return s == YES 106 107 def askyesnocancel(title=None, message=None, **options): 108 "Ask a question; return true if the answer is yes, None if cancelled." 109 s = _show(title, message, QUESTION, YESNOCANCEL, **options) 110 # s might be a Tcl index object, so convert it to a string 111 s = str(s) 112 if s == CANCEL: 113 return None 114 return s == YES 115 116 def askretrycancel(title=None, message=None, **options): 117 "Ask if operation should be retried; return true if the answer is yes" 118 s = _show(title, message, WARNING, RETRYCANCEL, **options) 119 return s == RETRY 120 121 122 # -------------------------------------------------------------------- 123 # test stuff 124 125 if __name__ == "__main__": 126 127 print("info", showinfo("Spam", "Egg Information")) 128 print("warning", showwarning("Spam", "Egg Warning")) 129 print("error", showerror("Spam", "Egg Alert")) 130 print("question", askquestion("Spam", "Question?")) 131 print("proceed", askokcancel("Spam", "Proceed?")) 132 print("yes/no", askyesno("Spam", "Got it?")) 133 print("yes/no/cancel", askyesnocancel("Spam", "Want it?")) 134 print("try again", askretrycancel("Spam", "Try again?")) 135
