projects / OpenSPARC-T2-SAM / blame
| Commit | Line | Data |
|---|---|---|
| 920dae64 AT |
1 | """A CallTip window class for Tkinter/IDLE. |
| 2 | ||
| 3 | After ToolTip.py, which uses ideas gleaned from PySol | |
| 4 | Used by the CallTips IDLE extension. | |
| 5 | ||
| 6 | """ | |
| 7 | from Tkinter import * | |
| 8 | ||
| 9 | class CallTip: | |
| 10 | ||
| 11 | def __init__(self, widget): | |
| 12 | self.widget = widget | |
| 13 | self.tipwindow = None | |
| 14 | self.id = None | |
| 15 | self.x = self.y = 0 | |
| 16 | ||
| 17 | def showtip(self, text): | |
| 18 | " Display text in calltip window" | |
| 19 | # truncate overly long calltip | |
| 20 | if len(text) >= 79: | |
| 21 | text = text[:75] + ' ...' | |
| 22 | self.text = text | |
| 23 | if self.tipwindow or not self.text: | |
| 24 | return | |
| 25 | self.widget.see("insert") | |
| 26 | x, y, cx, cy = self.widget.bbox("insert") | |
| 27 | x = x + self.widget.winfo_rootx() + 2 | |
| 28 | y = y + cy + self.widget.winfo_rooty() | |
| 29 | self.tipwindow = tw = Toplevel(self.widget) | |
| 30 | # XXX 12 Dec 2002 KBK The following command has two effects: It removes | |
| 31 | # the calltip window border (good) but also causes (at least on | |
| 32 | # Linux) the calltip to show as a top level window, burning through | |
| 33 | # any other window dragged over it. Also, shows on all viewports! | |
| 34 | tw.wm_overrideredirect(1) | |
| 35 | tw.wm_geometry("+%d+%d" % (x, y)) | |
| 36 | try: | |
| 37 | # This command is only needed and available on Tk >= 8.4.0 for OSX | |
| 38 | # Without it, call tips intrude on the typing process by grabbing | |
| 39 | # the focus. | |
| 40 | tw.tk.call("::tk::unsupported::MacWindowStyle", "style", tw._w, | |
| 41 | "help", "noActivates") | |
| 42 | except TclError: | |
| 43 | pass | |
| 44 | label = Label(tw, text=self.text, justify=LEFT, | |
| 45 | background="#ffffe0", relief=SOLID, borderwidth=1, | |
| 46 | font = self.widget['font']) | |
| 47 | label.pack() | |
| 48 | ||
| 49 | def hidetip(self): | |
| 50 | tw = self.tipwindow | |
| 51 | self.tipwindow = None | |
| 52 | if tw: | |
| 53 | tw.destroy() | |
| 54 | ||
| 55 | ||
| 56 | ############################### | |
| 57 | # | |
| 58 | # Test Code | |
| 59 | # | |
| 60 | class container: # Conceptually an editor_window | |
| 61 | def __init__(self): | |
| 62 | root = Tk() | |
| 63 | text = self.text = Text(root) | |
| 64 | text.pack(side=LEFT, fill=BOTH, expand=1) | |
| 65 | text.insert("insert", "string.split") | |
| 66 | root.update() | |
| 67 | self.calltip = CallTip(text) | |
| 68 | ||
| 69 | text.event_add("<<calltip-show>>", "(") | |
| 70 | text.event_add("<<calltip-hide>>", ")") | |
| 71 | text.bind("<<calltip-show>>", self.calltip_show) | |
| 72 | text.bind("<<calltip-hide>>", self.calltip_hide) | |
| 73 | ||
| 74 | text.focus_set() | |
| 75 | root.mainloop() | |
| 76 | ||
| 77 | def calltip_show(self, event): | |
| 78 | self.calltip.showtip("Hello world") | |
| 79 | ||
| 80 | def calltip_hide(self, event): | |
| 81 | self.calltip.hidetip() | |
| 82 | ||
| 83 | def main(): | |
| 84 | # Test code | |
| 85 | c=container() | |
| 86 | ||
| 87 | if __name__=='__main__': | |
| 88 | main() |