Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | """A simple but flexible modal dialog box.""" |
2 | ||
3 | ||
4 | from Tkinter import * | |
5 | ||
6 | ||
7 | class SimpleDialog: | |
8 | ||
9 | def __init__(self, master, | |
10 | text='', buttons=[], default=None, cancel=None, | |
11 | title=None, class_=None): | |
12 | if class_: | |
13 | self.root = Toplevel(master, class_=class_) | |
14 | else: | |
15 | self.root = Toplevel(master) | |
16 | if title: | |
17 | self.root.title(title) | |
18 | self.root.iconname(title) | |
19 | self.message = Message(self.root, text=text, aspect=400) | |
20 | self.message.pack(expand=1, fill=BOTH) | |
21 | self.frame = Frame(self.root) | |
22 | self.frame.pack() | |
23 | self.num = default | |
24 | self.cancel = cancel | |
25 | self.default = default | |
26 | self.root.bind('<Return>', self.return_event) | |
27 | for num in range(len(buttons)): | |
28 | s = buttons[num] | |
29 | b = Button(self.frame, text=s, | |
30 | command=(lambda self=self, num=num: self.done(num))) | |
31 | if num == default: | |
32 | b.config(relief=RIDGE, borderwidth=8) | |
33 | b.pack(side=LEFT, fill=BOTH, expand=1) | |
34 | self.root.protocol('WM_DELETE_WINDOW', self.wm_delete_window) | |
35 | self._set_transient(master) | |
36 | ||
37 | def _set_transient(self, master, relx=0.5, rely=0.3): | |
38 | widget = self.root | |
39 | widget.withdraw() # Remain invisible while we figure out the geometry | |
40 | widget.transient(master) | |
41 | widget.update_idletasks() # Actualize geometry information | |
42 | if master.winfo_ismapped(): | |
43 | m_width = master.winfo_width() | |
44 | m_height = master.winfo_height() | |
45 | m_x = master.winfo_rootx() | |
46 | m_y = master.winfo_rooty() | |
47 | else: | |
48 | m_width = master.winfo_screenwidth() | |
49 | m_height = master.winfo_screenheight() | |
50 | m_x = m_y = 0 | |
51 | w_width = widget.winfo_reqwidth() | |
52 | w_height = widget.winfo_reqheight() | |
53 | x = m_x + (m_width - w_width) * relx | |
54 | y = m_y + (m_height - w_height) * rely | |
55 | if x+w_width > master.winfo_screenwidth(): | |
56 | x = master.winfo_screenwidth() - w_width | |
57 | elif x < 0: | |
58 | x = 0 | |
59 | if y+w_height > master.winfo_screenheight(): | |
60 | y = master.winfo_screenheight() - w_height | |
61 | elif y < 0: | |
62 | y = 0 | |
63 | widget.geometry("+%d+%d" % (x, y)) | |
64 | widget.deiconify() # Become visible at the desired location | |
65 | ||
66 | def go(self): | |
67 | self.root.wait_visibility() | |
68 | self.root.grab_set() | |
69 | self.root.mainloop() | |
70 | self.root.destroy() | |
71 | return self.num | |
72 | ||
73 | def return_event(self, event): | |
74 | if self.default is None: | |
75 | self.root.bell() | |
76 | else: | |
77 | self.done(self.default) | |
78 | ||
79 | def wm_delete_window(self): | |
80 | if self.cancel is None: | |
81 | self.root.bell() | |
82 | else: | |
83 | self.done(self.cancel) | |
84 | ||
85 | def done(self, num): | |
86 | self.num = num | |
87 | self.root.quit() | |
88 | ||
89 | ||
90 | if __name__ == '__main__': | |
91 | ||
92 | def test(): | |
93 | root = Tk() | |
94 | def doit(root=root): | |
95 | d = SimpleDialog(root, | |
96 | text="This is a test dialog. " | |
97 | "Would this have been an actual dialog, " | |
98 | "the buttons below would have been glowing " | |
99 | "in soft pink light.\n" | |
100 | "Do you believe this?", | |
101 | buttons=["Yes", "No", "Cancel"], | |
102 | default=0, | |
103 | cancel=2, | |
104 | title="Test Dialog") | |
105 | print d.go() | |
106 | t = Button(root, text='Test', command=doit) | |
107 | t.pack() | |
108 | q = Button(root, text='Quit', command=t.quit) | |
109 | q.pack() | |
110 | t.mainloop() | |
111 | ||
112 | test() |