projects / OpenSPARC-T2-SAM / blame
| Commit | Line | Data |
|---|---|---|
| 920dae64 AT |
1 | # general purpose 'tooltip' routines - currently unused in idlefork |
| 2 | # (although the 'calltips' extension is partly based on this code) | |
| 3 | # may be useful for some purposes in (or almost in ;) the current project scope | |
| 4 | # Ideas gleaned from PySol | |
| 5 | ||
| 6 | from Tkinter import * | |
| 7 | ||
| 8 | class ToolTipBase: | |
| 9 | ||
| 10 | def __init__(self, button): | |
| 11 | self.button = button | |
| 12 | self.tipwindow = None | |
| 13 | self.id = None | |
| 14 | self.x = self.y = 0 | |
| 15 | self._id1 = self.button.bind("<Enter>", self.enter) | |
| 16 | self._id2 = self.button.bind("<Leave>", self.leave) | |
| 17 | self._id3 = self.button.bind("<ButtonPress>", self.leave) | |
| 18 | ||
| 19 | def enter(self, event=None): | |
| 20 | self.schedule() | |
| 21 | ||
| 22 | def leave(self, event=None): | |
| 23 | self.unschedule() | |
| 24 | self.hidetip() | |
| 25 | ||
| 26 | def schedule(self): | |
| 27 | self.unschedule() | |
| 28 | self.id = self.button.after(1500, self.showtip) | |
| 29 | ||
| 30 | def unschedule(self): | |
| 31 | id = self.id | |
| 32 | self.id = None | |
| 33 | if id: | |
| 34 | self.button.after_cancel(id) | |
| 35 | ||
| 36 | def showtip(self): | |
| 37 | if self.tipwindow: | |
| 38 | return | |
| 39 | # The tip window must be completely outside the button; | |
| 40 | # otherwise when the mouse enters the tip window we get | |
| 41 | # a leave event and it disappears, and then we get an enter | |
| 42 | # event and it reappears, and so on forever :-( | |
| 43 | x = self.button.winfo_rootx() + 20 | |
| 44 | y = self.button.winfo_rooty() + self.button.winfo_height() + 1 | |
| 45 | self.tipwindow = tw = Toplevel(self.button) | |
| 46 | tw.wm_overrideredirect(1) | |
| 47 | tw.wm_geometry("+%d+%d" % (x, y)) | |
| 48 | self.showcontents() | |
| 49 | ||
| 50 | def showcontents(self, text="Your text here"): | |
| 51 | # Override this in derived class | |
| 52 | label = Label(self.tipwindow, text=text, justify=LEFT, | |
| 53 | background="#ffffe0", relief=SOLID, borderwidth=1) | |
| 54 | label.pack() | |
| 55 | ||
| 56 | def hidetip(self): | |
| 57 | tw = self.tipwindow | |
| 58 | self.tipwindow = None | |
| 59 | if tw: | |
| 60 | tw.destroy() | |
| 61 | ||
| 62 | class ToolTip(ToolTipBase): | |
| 63 | def __init__(self, button, text): | |
| 64 | ToolTipBase.__init__(self, button) | |
| 65 | self.text = text | |
| 66 | def showcontents(self): | |
| 67 | ToolTipBase.showcontents(self, self.text) | |
| 68 | ||
| 69 | class ListboxToolTip(ToolTipBase): | |
| 70 | def __init__(self, button, items): | |
| 71 | ToolTipBase.__init__(self, button) | |
| 72 | self.items = items | |
| 73 | def showcontents(self): | |
| 74 | listbox = Listbox(self.tipwindow, background="#ffffe0") | |
| 75 | listbox.pack() | |
| 76 | for item in self.items: | |
| 77 | listbox.insert(END, item) | |
| 78 | ||
| 79 | def main(): | |
| 80 | # Test code | |
| 81 | root = Tk() | |
| 82 | b = Button(root, text="Hello", command=root.destroy) | |
| 83 | b.pack() | |
| 84 | root.update() | |
| 85 | tip = ListboxToolTip(b, ["Hello", "world"]) | |
| 86 | ||
| 87 | # root.mainloop() # not in idle | |
| 88 | ||
| 89 | main() |