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annotate Lib/lib-tk/tkSimpleDialog.py @ 58765:2ba7677bfa95 legacy-trunk

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testCopysign was defined twice in test_math; combine the definitions
author Mark Dickinson <dickinsm@gmail.com>
date Sat, 06 Feb 2010 23:11:25 +0000
parents 684960fb1cbf
children b36cb4602e21
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1 #
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2 # An Introduction to Tkinter
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3 # tkSimpleDialog.py
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4 #
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5 # Copyright (c) 1997 by Fredrik Lundh
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6 #
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7 # fredrik@pythonware.com
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8 # http://www.pythonware.com
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9 #
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10
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11 # --------------------------------------------------------------------
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12 # dialog base class
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13
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14 '''Dialog boxes
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15
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16 This module handles dialog boxes. It contains the following
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17 public symbols:
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18
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19 Dialog -- a base class for dialogs
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20
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21 askinteger -- get an integer from the user
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22
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23 askfloat -- get a float from the user
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24
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25 askstring -- get a string from the user
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26 '''
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27
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28 from Tkinter import *
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29
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30 class Dialog(Toplevel):
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31
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32 '''Class to open dialogs.
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33
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34 This class is intended as a base class for custom dialogs
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35 '''
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36
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37 def __init__(self, parent, title = None):
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38
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39 '''Initialize a dialog.
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40
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41 Arguments:
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42
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43 parent -- a parent window (the application window)
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44
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45 title -- the dialog title
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46 '''
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47 Toplevel.__init__(self, parent)
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48
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49 self.withdraw() # remain invisible for now
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50 # If the master is not viewable, don't
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51 # make the child transient, or else it
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52 # would be opened withdrawn
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53 if parent.winfo_viewable():
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54 self.transient(parent)
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55
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56 if title:
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57 self.title(title)
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58
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59 self.parent = parent
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60
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61 self.result = None
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62
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63 body = Frame(self)
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64 self.initial_focus = self.body(body)
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65 body.pack(padx=5, pady=5)
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66
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67 self.buttonbox()
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68
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69
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70 if not self.initial_focus:
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71 self.initial_focus = self
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72
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73 self.protocol("WM_DELETE_WINDOW", self.cancel)
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74
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75 if self.parent is not None:
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76 self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
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77 parent.winfo_rooty()+50))
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78
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79 self.deiconify() # become visibile now
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80
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81 self.initial_focus.focus_set()
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82
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83 # wait for window to appear on screen before calling grab_set
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84 self.wait_visibility()
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85 self.grab_set()
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86 self.wait_window(self)
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87
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88 def destroy(self):
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89 '''Destroy the window'''
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90 self.initial_focus = None
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91 Toplevel.destroy(self)
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92
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93 #
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94 # construction hooks
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95
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96 def body(self, master):
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97 '''create dialog body.
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98
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99 return widget that should have initial focus.
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100 This method should be overridden, and is called
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101 by the __init__ method.
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102 '''
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103 pass
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104
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105 def buttonbox(self):
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106 '''add standard button box.
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107
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108 override if you do not want the standard buttons
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109 '''
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110
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111 box = Frame(self)
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112
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113 w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
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114 w.pack(side=LEFT, padx=5, pady=5)
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115 w = Button(box, text="Cancel", width=10, command=self.cancel)
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116 w.pack(side=LEFT, padx=5, pady=5)
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117
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118 self.bind("<Return>", self.ok)
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119 self.bind("<Escape>", self.cancel)
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120
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121 box.pack()
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122
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123 #
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124 # standard button semantics
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125
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126 def ok(self, event=None):
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127
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128 if not self.validate():
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129 self.initial_focus.focus_set() # put focus back
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130 return
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131
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132 self.withdraw()
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133 self.update_idletasks()
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134
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135 try:
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136 self.apply()
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137 finally:
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138 self.cancel()
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139
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140 def cancel(self, event=None):
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141
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142 # put focus back to the parent window
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143 if self.parent is not None:
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144 self.parent.focus_set()
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145 self.destroy()
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146
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147 #
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parents:
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148 # command hooks
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parents:
diff changeset
149
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parents:
diff changeset
150 def validate(self):
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parents:
diff changeset
151 '''validate the data
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Georg Brandl <georg@python.org>
parents:
diff changeset
152
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Georg Brandl <georg@python.org>
parents:
diff changeset
153 This method is called automatically to validate the data before the
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Georg Brandl <georg@python.org>
parents:
diff changeset
154 dialog is destroyed. By default, it always validates OK.
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
155 '''
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Georg Brandl <georg@python.org>
parents:
diff changeset
156
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Georg Brandl <georg@python.org>
parents:
diff changeset
157 return 1 # override
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Georg Brandl <georg@python.org>
parents:
diff changeset
158
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Georg Brandl <georg@python.org>
parents:
diff changeset
159 def apply(self):
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Georg Brandl <georg@python.org>
parents:
diff changeset
160 '''process the data
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Georg Brandl <georg@python.org>
parents:
diff changeset
161
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Georg Brandl <georg@python.org>
parents:
diff changeset
162 This method is called automatically to process the data, *after*
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Georg Brandl <georg@python.org>
parents:
diff changeset
163 the dialog is destroyed. By default, it does nothing.
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Georg Brandl <georg@python.org>
parents:
diff changeset
164 '''
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Georg Brandl <georg@python.org>
parents:
diff changeset
165
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
166 pass # override
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Georg Brandl <georg@python.org>
parents:
diff changeset
167
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Georg Brandl <georg@python.org>
parents:
diff changeset
168
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Georg Brandl <georg@python.org>
parents:
diff changeset
169 # --------------------------------------------------------------------
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Georg Brandl <georg@python.org>
parents:
diff changeset
170 # convenience dialogues
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parents:
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171
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Georg Brandl <georg@python.org>
parents:
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172 class _QueryDialog(Dialog):
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parents:
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173
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Georg Brandl <georg@python.org>
parents:
diff changeset
174 def __init__(self, title, prompt,
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parents:
diff changeset
175 initialvalue=None,
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Georg Brandl <georg@python.org>
parents:
diff changeset
176 minvalue = None, maxvalue = None,
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Georg Brandl <georg@python.org>
parents:
diff changeset
177 parent = None):
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parents:
diff changeset
178
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Georg Brandl <georg@python.org>
parents:
diff changeset
179 if not parent:
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Georg Brandl <georg@python.org>
parents:
diff changeset
180 import Tkinter
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parents:
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181 parent = Tkinter._default_root
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Georg Brandl <georg@python.org>
parents:
diff changeset
182
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Georg Brandl <georg@python.org>
parents:
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183 self.prompt = prompt
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Georg Brandl <georg@python.org>
parents:
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184 self.minvalue = minvalue
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Georg Brandl <georg@python.org>
parents:
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185 self.maxvalue = maxvalue
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Georg Brandl <georg@python.org>
parents:
diff changeset
186
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Georg Brandl <georg@python.org>
parents:
diff changeset
187 self.initialvalue = initialvalue
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Georg Brandl <georg@python.org>
parents:
diff changeset
188
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Georg Brandl <georg@python.org>
parents:
diff changeset
189 Dialog.__init__(self, parent, title)
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Georg Brandl <georg@python.org>
parents:
diff changeset
190
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Georg Brandl <georg@python.org>
parents:
diff changeset
191 def destroy(self):
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Georg Brandl <georg@python.org>
parents:
diff changeset
192 self.entry = None
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Georg Brandl <georg@python.org>
parents:
diff changeset
193 Dialog.destroy(self)
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Georg Brandl <georg@python.org>
parents:
diff changeset
194
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Georg Brandl <georg@python.org>
parents:
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195 def body(self, master):
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Georg Brandl <georg@python.org>
parents:
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196
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Georg Brandl <georg@python.org>
parents:
diff changeset
197 w = Label(master, text=self.prompt, justify=LEFT)
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Georg Brandl <georg@python.org>
parents:
diff changeset
198 w.grid(row=0, padx=5, sticky=W)
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parents:
diff changeset
199
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Georg Brandl <georg@python.org>
parents:
diff changeset
200 self.entry = Entry(master, name="entry")
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Georg Brandl <georg@python.org>
parents:
diff changeset
201 self.entry.grid(row=1, padx=5, sticky=W+E)
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Georg Brandl <georg@python.org>
parents:
diff changeset
202
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
203 if self.initialvalue:
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Georg Brandl <georg@python.org>
parents:
diff changeset
204 self.entry.insert(0, self.initialvalue)
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Georg Brandl <georg@python.org>
parents:
diff changeset
205 self.entry.select_range(0, END)
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Georg Brandl <georg@python.org>
parents:
diff changeset
206
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Georg Brandl <georg@python.org>
parents:
diff changeset
207 return self.entry
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Georg Brandl <georg@python.org>
parents:
diff changeset
208
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Georg Brandl <georg@python.org>
parents:
diff changeset
209 def validate(self):
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Georg Brandl <georg@python.org>
parents:
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210
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Georg Brandl <georg@python.org>
parents:
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211 import tkMessageBox
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Georg Brandl <georg@python.org>
parents:
diff changeset
212
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
213 try:
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Georg Brandl <georg@python.org>
parents:
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214 result = self.getresult()
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Georg Brandl <georg@python.org>
parents:
diff changeset
215 except ValueError:
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Georg Brandl <georg@python.org>
parents:
diff changeset
216 tkMessageBox.showwarning(
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
217 "Illegal value",
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
218 self.errormessage + "\nPlease try again",
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Georg Brandl <georg@python.org>
parents:
diff changeset
219 parent = self
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Georg Brandl <georg@python.org>
parents:
diff changeset
220 )
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Georg Brandl <georg@python.org>
parents:
diff changeset
221 return 0
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Georg Brandl <georg@python.org>
parents:
diff changeset
222
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
223 if self.minvalue is not None and result < self.minvalue:
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Georg Brandl <georg@python.org>
parents:
diff changeset
224 tkMessageBox.showwarning(
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
225 "Too small",
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
226 "The allowed minimum value is %s. "
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Georg Brandl <georg@python.org>
parents:
diff changeset
227 "Please try again." % self.minvalue,
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Georg Brandl <georg@python.org>
parents:
diff changeset
228 parent = self
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Georg Brandl <georg@python.org>
parents:
diff changeset
229 )
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Georg Brandl <georg@python.org>
parents:
diff changeset
230 return 0
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Georg Brandl <georg@python.org>
parents:
diff changeset
231
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
232 if self.maxvalue is not None and result > self.maxvalue:
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Georg Brandl <georg@python.org>
parents:
diff changeset
233 tkMessageBox.showwarning(
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
234 "Too large",
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
235 "The allowed maximum value is %s. "
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
236 "Please try again." % self.maxvalue,
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
237 parent = self
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
238 )
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Georg Brandl <georg@python.org>
parents:
diff changeset
239 return 0
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
240
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
241 self.result = result
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
242
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
243 return 1
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
244
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
245
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
246 class _QueryInteger(_QueryDialog):
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
247 errormessage = "Not an integer."
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
248 def getresult(self):
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Georg Brandl <georg@python.org>
parents:
diff changeset
249 return int(self.entry.get())
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
250
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
251 def askinteger(title, prompt, **kw):
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
252 '''get an integer from the user
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
253
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
254 Arguments:
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
255
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
256 title -- the dialog title
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
257 prompt -- the label text
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
258 **kw -- see SimpleDialog class
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
259
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
260 Return value is an integer
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
261 '''
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
262 d = _QueryInteger(title, prompt, **kw)
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
263 return d.result
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
264
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
265 class _QueryFloat(_QueryDialog):
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Georg Brandl <georg@python.org>
parents:
diff changeset
266 errormessage = "Not a floating point value."
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Georg Brandl <georg@python.org>
parents:
diff changeset
267 def getresult(self):
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
268 return float(self.entry.get())
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
269
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
270 def askfloat(title, prompt, **kw):
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
271 '''get a float from the user
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
272
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
273 Arguments:
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
274
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
275 title -- the dialog title
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
276 prompt -- the label text
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
277 **kw -- see SimpleDialog class
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
278
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
279 Return value is a float
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
280 '''
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
281 d = _QueryFloat(title, prompt, **kw)
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
282 return d.result
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
283
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
284 class _QueryString(_QueryDialog):
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Georg Brandl <georg@python.org>
parents:
diff changeset
285 def __init__(self, *args, **kw):
56436
684960fb1cbf replace has_key with 'in' operator
Benjamin Peterson <benjamin@python.org>
parents: 52059
diff changeset
286 if "show" in kw:
47182
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
287 self.__show = kw["show"]
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
288 del kw["show"]
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
289 else:
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
290 self.__show = None
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
291 _QueryDialog.__init__(self, *args, **kw)
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
292
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
293 def body(self, master):
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
294 entry = _QueryDialog.body(self, master)
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
295 if self.__show is not None:
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
296 entry.configure(show=self.__show)
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
diff changeset
297 return entry
5cec436d64a2 Tkinter renaming reversal: move modules back in their place.
Georg Brandl <georg@python.org>
parents:
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298
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299 def getresult(self):
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300 return self.entry.get()
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301
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302 def askstring(title, prompt, **kw):
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303 '''get a string from the user
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304
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305 Arguments:
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306
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307 title -- the dialog title
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308 prompt -- the label text
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309 **kw -- see SimpleDialog class
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310
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311 Return value is a string
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312 '''
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313 d = _QueryString(title, prompt, **kw)
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314 return d.result
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315
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316 if __name__ == "__main__":
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317
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318 root = Tk()
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319 root.update()
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320
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321 print askinteger("Spam", "Egg count", initialvalue=12*12)
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322 print askfloat("Spam", "Egg weight\n(in tons)", minvalue=1, maxvalue=100)
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323 print askstring("Spam", "Egg label")