| # general purpose 'tooltip' routines - currently unused in idlefork |
| # (although the 'calltips' extension is partly based on this code) |
| # may be useful for some purposes in (or almost in ;) the current project scope |
| # Ideas gleaned from PySol |
| |
| 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() |
| |
| if __name__ == '__main__': |
| main() |
