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