Python code coverage for Lib/idlelib/ToolTip.py

#	count	content
1	n/a	# general purpose 'tooltip' routines - currently unused in idlefork
2	n/a	# (although the 'calltips' extension is partly based on this code)
3	n/a	# may be useful for some purposes in (or almost in ;) the current project scope
4	n/a	# Ideas gleaned from PySol
5	n/a
6	n/a	from tkinter import *
7	n/a
8	n/a	class ToolTipBase:
9	n/a
10	n/a	def __init__(self, button):
11	n/a	self.button = button
12	n/a	self.tipwindow = None
13	n/a	self.id = None
14	n/a	self.x = self.y = 0
15	n/a	self._id1 = self.button.bind("<Enter>", self.enter)
16	n/a	self._id2 = self.button.bind("<Leave>", self.leave)
17	n/a	self._id3 = self.button.bind("<ButtonPress>", self.leave)
18	n/a
19	n/a	def enter(self, event=None):
20	n/a	self.schedule()
21	n/a
22	n/a	def leave(self, event=None):
23	n/a	self.unschedule()
24	n/a	self.hidetip()
25	n/a
26	n/a	def schedule(self):
27	n/a	self.unschedule()
28	n/a	self.id = self.button.after(1500, self.showtip)
29	n/a
30	n/a	def unschedule(self):
31	n/a	id = self.id
32	n/a	self.id = None
33	n/a	if id:
34	n/a	self.button.after_cancel(id)
35	n/a
36	n/a	def showtip(self):
37	n/a	if self.tipwindow:
38	n/a	return
39	n/a	# The tip window must be completely outside the button;
40	n/a	# otherwise when the mouse enters the tip window we get
41	n/a	# a leave event and it disappears, and then we get an enter
42	n/a	# event and it reappears, and so on forever :-(
43	n/a	x = self.button.winfo_rootx() + 20
44	n/a	y = self.button.winfo_rooty() + self.button.winfo_height() + 1
45	n/a	self.tipwindow = tw = Toplevel(self.button)
46	n/a	tw.wm_overrideredirect(1)
47	n/a	tw.wm_geometry("+%d+%d" % (x, y))
48	n/a	self.showcontents()
49	n/a
50	n/a	def showcontents(self, text="Your text here"):
51	n/a	# Override this in derived class
52	n/a	label = Label(self.tipwindow, text=text, justify=LEFT,
53	n/a	background="#ffffe0", relief=SOLID, borderwidth=1)
54	n/a	label.pack()
55	n/a
56	n/a	def hidetip(self):
57	n/a	tw = self.tipwindow
58	n/a	self.tipwindow = None
59	n/a	if tw:
60	n/a	tw.destroy()
61	n/a
62	n/a	class ToolTip(ToolTipBase):
63	n/a	def __init__(self, button, text):
64	n/a	ToolTipBase.__init__(self, button)
65	n/a	self.text = text
66	n/a	def showcontents(self):
67	n/a	ToolTipBase.showcontents(self, self.text)
68	n/a
69	n/a	class ListboxToolTip(ToolTipBase):
70	n/a	def __init__(self, button, items):
71	n/a	ToolTipBase.__init__(self, button)
72	n/a	self.items = items
73	n/a	def showcontents(self):
74	n/a	listbox = Listbox(self.tipwindow, background="#ffffe0")
75	n/a	listbox.pack()
76	n/a	for item in self.items:
77	n/a	listbox.insert(END, item)
78	n/a
79	n/a	def main():
80	n/a	# Test code
81	n/a	root = Tk()
82	n/a	b = Button(root, text="Hello", command=root.destroy)
83	n/a	b.pack()
84	n/a	root.update()
85	n/a	tip = ListboxToolTip(b, ["Hello", "world"])
86	n/a	root.mainloop()
87	n/a
88	n/a	if __name__ == '__main__':
89	n/a	main()