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920dae64 AT |
1 | # Based on iwidgets2.2.0/dialog.itk and iwidgets2.2.0/dialogshell.itk code. |
2 | ||
3 | # Convention: | |
4 | # Each dialog window should have one of these as the rightmost button: | |
5 | # Close Close a window which only displays information. | |
6 | # Cancel Close a window which may be used to change the state of | |
7 | # the application. | |
8 | ||
9 | import sys | |
10 | import types | |
11 | import Tkinter | |
12 | import Pmw | |
13 | ||
14 | # A Toplevel with a ButtonBox and child site. | |
15 | ||
16 | class Dialog(Pmw.MegaToplevel): | |
17 | def __init__(self, parent = None, **kw): | |
18 | ||
19 | # Define the megawidget options. | |
20 | INITOPT = Pmw.INITOPT | |
21 | optiondefs = ( | |
22 | ('buttonbox_hull_borderwidth', 1, None), | |
23 | ('buttonbox_hull_relief', 'raised', None), | |
24 | ('buttonboxpos', 's', INITOPT), | |
25 | ('buttons', ('OK',), self._buttons), | |
26 | ('command', None, None), | |
27 | ('dialogchildsite_borderwidth', 1, None), | |
28 | ('dialogchildsite_relief', 'raised', None), | |
29 | ('defaultbutton', None, self._defaultButton), | |
30 | ('master', 'parent', None), | |
31 | ('separatorwidth', 0, INITOPT), | |
32 | ) | |
33 | self.defineoptions(kw, optiondefs) | |
34 | ||
35 | # Initialise the base class (after defining the options). | |
36 | Pmw.MegaToplevel.__init__(self, parent) | |
37 | ||
38 | # Create the components. | |
39 | ||
40 | oldInterior = Pmw.MegaToplevel.interior(self) | |
41 | ||
42 | # Set up pack options according to the position of the button box. | |
43 | pos = self['buttonboxpos'] | |
44 | if pos not in 'nsew': | |
45 | raise ValueError, \ | |
46 | 'bad buttonboxpos option "%s": should be n, s, e, or w' \ | |
47 | % pos | |
48 | ||
49 | if pos in 'ns': | |
50 | orient = 'horizontal' | |
51 | fill = 'x' | |
52 | if pos == 'n': | |
53 | side = 'top' | |
54 | else: | |
55 | side = 'bottom' | |
56 | else: | |
57 | orient = 'vertical' | |
58 | fill = 'y' | |
59 | if pos == 'w': | |
60 | side = 'left' | |
61 | else: | |
62 | side = 'right' | |
63 | ||
64 | # Create the button box. | |
65 | self._buttonBox = self.createcomponent('buttonbox', | |
66 | (), None, | |
67 | Pmw.ButtonBox, (oldInterior,), orient = orient) | |
68 | self._buttonBox.pack(side = side, fill = fill) | |
69 | ||
70 | # Create the separating line. | |
71 | width = self['separatorwidth'] | |
72 | if width > 0: | |
73 | self._separator = self.createcomponent('separator', | |
74 | (), None, | |
75 | Tkinter.Frame, (oldInterior,), relief = 'sunken', | |
76 | height = width, width = width, borderwidth = width / 2) | |
77 | self._separator.pack(side = side, fill = fill) | |
78 | ||
79 | # Create the child site. | |
80 | self.__dialogChildSite = self.createcomponent('dialogchildsite', | |
81 | (), None, | |
82 | Tkinter.Frame, (oldInterior,)) | |
83 | self.__dialogChildSite.pack(side=side, fill='both', expand=1) | |
84 | ||
85 | self.oldButtons = () | |
86 | self.oldDefault = None | |
87 | ||
88 | self.bind('<Return>', self._invokeDefault) | |
89 | self.userdeletefunc(self._doCommand) | |
90 | self.usermodaldeletefunc(self._doCommand) | |
91 | ||
92 | # Check keywords and initialise options. | |
93 | self.initialiseoptions() | |
94 | ||
95 | def interior(self): | |
96 | return self.__dialogChildSite | |
97 | ||
98 | def invoke(self, index = Pmw.DEFAULT): | |
99 | return self._buttonBox.invoke(index) | |
100 | ||
101 | def _invokeDefault(self, event): | |
102 | try: | |
103 | self._buttonBox.index(Pmw.DEFAULT) | |
104 | except ValueError: | |
105 | return | |
106 | self._buttonBox.invoke() | |
107 | ||
108 | def _doCommand(self, name = None): | |
109 | if name is not None and self.active() and \ | |
110 | Pmw.grabstacktopwindow() != self.component('hull'): | |
111 | # This is a modal dialog but is not on the top of the grab | |
112 | # stack (ie: should not have the grab), so ignore this | |
113 | # event. This seems to be a bug in Tk and may occur in | |
114 | # nested modal dialogs. | |
115 | # | |
116 | # An example is the PromptDialog demonstration. To | |
117 | # trigger the problem, start the demo, then move the mouse | |
118 | # to the main window, hit <TAB> and then <TAB> again. The | |
119 | # highlight border of the "Show prompt dialog" button | |
120 | # should now be displayed. Now hit <SPACE>, <RETURN>, | |
121 | # <RETURN> rapidly several times. Eventually, hitting the | |
122 | # return key invokes the password dialog "OK" button even | |
123 | # though the confirm dialog is active (and therefore | |
124 | # should have the keyboard focus). Observed under Solaris | |
125 | # 2.5.1, python 1.5.2 and Tk8.0. | |
126 | ||
127 | # TODO: Give focus to the window on top of the grabstack. | |
128 | return | |
129 | ||
130 | command = self['command'] | |
131 | if callable(command): | |
132 | return command(name) | |
133 | else: | |
134 | if self.active(): | |
135 | self.deactivate(name) | |
136 | else: | |
137 | self.withdraw() | |
138 | ||
139 | def _buttons(self): | |
140 | buttons = self['buttons'] | |
141 | if type(buttons) != types.TupleType and type(buttons) != types.ListType: | |
142 | raise ValueError, \ | |
143 | 'bad buttons option "%s": should be a tuple' % str(buttons) | |
144 | if self.oldButtons == buttons: | |
145 | return | |
146 | ||
147 | self.oldButtons = buttons | |
148 | ||
149 | for index in range(self._buttonBox.numbuttons()): | |
150 | self._buttonBox.delete(0) | |
151 | for name in buttons: | |
152 | self._buttonBox.add(name, | |
153 | command=lambda self=self, name=name: self._doCommand(name)) | |
154 | ||
155 | if len(buttons) > 0: | |
156 | defaultbutton = self['defaultbutton'] | |
157 | if defaultbutton is None: | |
158 | self._buttonBox.setdefault(None) | |
159 | else: | |
160 | try: | |
161 | self._buttonBox.index(defaultbutton) | |
162 | except ValueError: | |
163 | pass | |
164 | else: | |
165 | self._buttonBox.setdefault(defaultbutton) | |
166 | self._buttonBox.alignbuttons() | |
167 | ||
168 | def _defaultButton(self): | |
169 | defaultbutton = self['defaultbutton'] | |
170 | if self.oldDefault == defaultbutton: | |
171 | return | |
172 | ||
173 | self.oldDefault = defaultbutton | |
174 | ||
175 | if len(self['buttons']) > 0: | |
176 | if defaultbutton is None: | |
177 | self._buttonBox.setdefault(None) | |
178 | else: | |
179 | try: | |
180 | self._buttonBox.index(defaultbutton) | |
181 | except ValueError: | |
182 | pass | |
183 | else: | |
184 | self._buttonBox.setdefault(defaultbutton) |