# general purpose 'tooltip' routines - currently unused in idlefork

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# (although the 'calltips' extension is partly based on this code)

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# may be useful for some purposes in (or almost in ;) the current project scope

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# Ideas gleaned from PySol

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from Tkinter import *

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class ToolTipBase:

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def __init__(self, button):

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self.button = button

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self.tipwindow = None

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self.id = None

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self.x = self.y = 0

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self._id1 = self.button.bind("<Enter>", self.enter)

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self._id2 = self.button.bind("<Leave>", self.leave)

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self._id3 = self.button.bind("<ButtonPress>", self.leave)

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def enter(self, event=None):

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self.schedule()

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def leave(self, event=None):

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self.unschedule()

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self.hidetip()

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def schedule(self):

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self.unschedule()

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self.id = self.button.after(1500, self.showtip)

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def unschedule(self):

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id = self.id

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self.id = None

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if id:

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self.button.after_cancel(id)

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def showtip(self):

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if self.tipwindow:

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return

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# The tip window must be completely outside the button;

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# otherwise when the mouse enters the tip window we get

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# a leave event and it disappears, and then we get an enter

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# event and it reappears, and so on forever :-(

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x = self.button.winfo_rootx() + 20

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y = self.button.winfo_rooty() + self.button.winfo_height() + 1

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self.tipwindow = tw = Toplevel(self.button)

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tw.wm_overrideredirect(1)

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tw.wm_geometry("+%d+%d" % (x, y))

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self.showcontents()

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def showcontents(self, text="Your text here"):

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# Override this in derived class

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label = Label(self.tipwindow, text=text, justify=LEFT,

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background="#ffffe0", relief=SOLID, borderwidth=1)

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label.pack()

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def hidetip(self):

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tw = self.tipwindow

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self.tipwindow = None

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if tw:

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tw.destroy()

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class ToolTip(ToolTipBase):

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def __init__(self, button, text):

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ToolTipBase.__init__(self, button)

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self.text = text

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def showcontents(self):

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ToolTipBase.showcontents(self, self.text)

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class ListboxToolTip(ToolTipBase):

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def __init__(self, button, items):

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ToolTipBase.__init__(self, button)

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self.items = items

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def showcontents(self):

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listbox = Listbox(self.tipwindow, background="#ffffe0")

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listbox.pack()

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for item in self.items:

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listbox.insert(END, item)

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def _tooltip(parent):

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root = Tk()

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root.title("Test tooltip")

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width, height, x, y = list(map(int, re.split('[x+]', parent.geometry())))

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root.geometry("+%d+%d"%(x, y + 150))

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label = Label(root, text="Place your mouse over buttons")

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label.pack()

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button1 = Button(root, text="Button 1")

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button2 = Button(root, text="Button 2")

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button1.pack()

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button2.pack()

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ToolTip(button1, "This is tooltip text for button1.")

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ListboxToolTip(button2, ["This is","multiple line",

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"tooltip text","for button2"])

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root.mainloop()

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if __name__ == '__main__':

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from idlelib.idle_test.htest import run

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run(_tooltip)

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