mirror of
https://github.com/python/cpython.git
synced 2024-12-01 03:01:36 +01:00
88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
# Ideas gleaned from PySol
|
|
|
|
import os
|
|
from Tkinter import *
|
|
|
|
class ToolTipBase:
|
|
|
|
def __init__(self, button):
|
|
self.button = button
|
|
self.tipwindow = None
|
|
self.id = None
|
|
self.x = self.y = 0
|
|
self._id1 = self.button.bind("<Enter>", self.enter)
|
|
self._id2 = self.button.bind("<Leave>", self.leave)
|
|
self._id3 = self.button.bind("<ButtonPress>", self.leave)
|
|
|
|
def enter(self, event=None):
|
|
self.schedule()
|
|
|
|
def leave(self, event=None):
|
|
self.unschedule()
|
|
self.hidetip()
|
|
|
|
def schedule(self):
|
|
self.unschedule()
|
|
self.id = self.button.after(1500, self.showtip)
|
|
|
|
def unschedule(self):
|
|
id = self.id
|
|
self.id = None
|
|
if id:
|
|
self.button.after_cancel(id)
|
|
|
|
def showtip(self):
|
|
if self.tipwindow:
|
|
return
|
|
# The tip window must be completely outside the button;
|
|
# otherwise when the mouse enters the tip window we get
|
|
# a leave event and it disappears, and then we get an enter
|
|
# event and it reappears, and so on forever :-(
|
|
x = self.button.winfo_rootx() + 20
|
|
y = self.button.winfo_rooty() + self.button.winfo_height() + 1
|
|
self.tipwindow = tw = Toplevel(self.button)
|
|
tw.wm_overrideredirect(1)
|
|
tw.wm_geometry("+%d+%d" % (x, y))
|
|
self.showcontents()
|
|
|
|
def showcontents(self, text="Your text here"):
|
|
# Override this in derived class
|
|
label = Label(self.tipwindow, text=text, justify=LEFT,
|
|
background="#ffffe0", relief=SOLID, borderwidth=1)
|
|
label.pack()
|
|
|
|
def hidetip(self):
|
|
tw = self.tipwindow
|
|
self.tipwindow = None
|
|
if tw:
|
|
tw.destroy()
|
|
|
|
class ToolTip(ToolTipBase):
|
|
def __init__(self, button, text):
|
|
ToolTipBase.__init__(self, button)
|
|
self.text = text
|
|
def showcontents(self):
|
|
ToolTipBase.showcontents(self, self.text)
|
|
|
|
class ListboxToolTip(ToolTipBase):
|
|
def __init__(self, button, items):
|
|
ToolTipBase.__init__(self, button)
|
|
self.items = items
|
|
def showcontents(self):
|
|
listbox = Listbox(self.tipwindow, background="#ffffe0")
|
|
listbox.pack()
|
|
for item in self.items:
|
|
listbox.insert(END, item)
|
|
|
|
def main():
|
|
# Test code
|
|
root = Tk()
|
|
b = Button(root, text="Hello", command=root.destroy)
|
|
b.pack()
|
|
root.update()
|
|
tip = ListboxToolTip(b, ["Hello", "world"])
|
|
|
|
# root.mainloop() # not in idle
|
|
|
|
main()
|