| 1 | class ToolTip: |
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| 2 | |
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| 3 | def __init__(self, master, text='No informations found', delay=1500, **opts): |
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| 4 | self.master = master |
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| 5 | self._opts = {'anchor':'center', 'bd':1, 'bg':'lightyellow', 'delay':delay, 'fg':'black',\ |
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| 6 | 'follow_mouse':0, 'font':None, 'justify':'left', 'padx':4, 'pady':2,\ |
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| 7 | 'relief':'solid', 'state':'normal', 'text':text, 'textvariable':None,\ |
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| 8 | 'width':0, 'wraplength':150} |
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| 9 | self.configure(**opts) |
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| 10 | self._tipwindow = None |
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| 11 | self._id = None |
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| 12 | self._id1 = self.master.bind("<Enter>", self.enter, '+') |
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| 13 | self._id2 = self.master.bind("<Leave>", self.leave, '+') |
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| 14 | self._id3 = self.master.bind("<ButtonPress>", self.leave, '+') |
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| 15 | self._follow_mouse = 0 |
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| 16 | if self._opts['follow_mouse']: |
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| 17 | self._id4 = self.master.bind("<Motion>", self.motion, '+') |
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| 18 | self._follow_mouse = 1 |
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| 19 | |
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| 20 | def configure(self, **opts): |
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| 21 | for key in opts: |
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| 22 | if self._opts.has_key(key): |
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| 23 | self._opts[key] = opts[key] |
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| 24 | else: |
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| 25 | KeyError = 'KeyError: Unknown option: "%s"' %key |
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| 26 | raise KeyError |
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| 27 | |
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| 28 | ## These methods handle the callbacks on "<Enter>", "<Leave>" and "<Motion>" ## |
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| 29 | ## Events on the parent widget; override them if you want to change the widget's behavior--## |
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| 30 | |
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| 31 | def enter(self, event=None): |
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| 32 | self._schedule() |
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| 33 | |
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| 34 | def leave(self, event=None): |
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| 35 | self._unschedule() |
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| 36 | self._hide() |
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| 37 | |
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| 38 | def motion(self, event=None): |
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| 39 | if self._tipwindow and self._follow_mouse: |
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| 40 | x, y = self.coords() |
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| 41 | self._tipwindow.wm_geometry("+%d+%d" % (x, y)) |
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| 42 | |
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| 43 | ## The methods that do the work ## |
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| 44 | |
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| 45 | def _schedule(self): |
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| 46 | self._unschedule() |
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| 47 | if self._opts['state'] == 'disabled': |
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| 48 | return |
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| 49 | self._id = self.master.after(self._opts['delay'], self._show) |
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| 50 | |
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| 51 | def _unschedule(self): |
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| 52 | id = self._id |
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| 53 | self._id = None |
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| 54 | if id: |
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| 55 | self.master.after_cancel(id) |
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| 56 | |
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| 57 | def _show(self): |
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| 58 | if self._opts['state'] == 'disabled': |
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| 59 | self._unschedule() |
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| 60 | return |
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| 61 | if not self._tipwindow: |
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| 62 | self._tipwindow = tw = Tkinter.Toplevel(self.master) |
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| 63 | # Hide the window until we know the geometry |
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| 64 | tw.withdraw() |
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| 65 | tw.wm_overrideredirect(1) |
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| 66 | |
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| 67 | if tw.tk.call("tk", "windowingsystem") == 'aqua': |
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| 68 | tw.tk.call("::tk::unsupported::MacWindowStyle", "style", tw._w, "help", "none") |
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| 69 | |
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| 70 | self.create_contents() |
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| 71 | tw.update_idletasks() |
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| 72 | x, y = self.coords() |
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| 73 | tw.wm_geometry("+%d+%d" % (x, y)) |
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| 74 | tw.deiconify() |
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| 75 | |
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| 76 | def _hide(self): |
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| 77 | tw = self._tipwindow |
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| 78 | self._tipwindow = None |
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| 79 | if tw: |
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| 80 | tw.destroy() |
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| 81 | |
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| 82 | ## These methods might be overridden in derived classes ## |
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| 83 | |
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| 84 | def coords(self): |
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| 85 | # The tip window must be completely outside the master widget; |
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| 86 | # otherwise when the mouse enters the tip window we get |
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| 87 | # a leave event and it disappears, and then we get an enter |
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| 88 | # event and it reappears, and so on forever |
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| 89 | # or we take care that the mouse pointer is always outside the tipwindow |
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| 90 | tw = self._tipwindow |
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| 91 | twx, twy = tw.winfo_reqwidth(), tw.winfo_reqheight() |
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| 92 | w, h = tw.winfo_screenwidth(), tw.winfo_screenheight() |
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| 93 | # Calculate the y coordinate |
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| 94 | if self._follow_mouse: |
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| 95 | y = tw.winfo_pointery() + 20 |
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| 96 | # Make sure the tipwindow is never outside the screen |
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| 97 | if y + twy > h: |
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| 98 | y = y - twy - 30 |
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| 99 | else: |
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| 100 | y = self.master.winfo_rooty() + self.master.winfo_height() + 3 |
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| 101 | if y + twy > h: |
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| 102 | y = self.master.winfo_rooty() - twy - 3 |
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| 103 | # We can use the same x coordinate in both cases |
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| 104 | x = tw.winfo_pointerx() - twx / 2 |
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| 105 | if x < 0: |
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| 106 | x = 0 |
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| 107 | elif x + twx > w: |
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| 108 | x = w - twx |
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| 109 | return x, y |
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| 110 | |
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| 111 | def create_contents(self): |
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| 112 | opts = self._opts.copy() |
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| 113 | for opt in ('delay', 'follow_mouse', 'state'): |
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| 114 | del opts[opt] |
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| 115 | label = Tkinter.Label(self._tipwindow, **opts) |
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| 116 | label.pack() |
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| 117 | |
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| 118 | ## This method generates the informations about the site ## |
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| 119 | |
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| 120 | def get_info(url): |
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| 121 | o = urlparse(url) |
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| 122 | return ('Network location: ' + o.netloc + '\n' + |
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| 123 | 'Path: ' + o.path + '\n' + |
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| 124 | 'Parameters: ' + o.params + '\n' + |
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| 125 | 'Query: ' + o.query + '\n' + |
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| 126 | 'Fragment: ' + o.fragment + '\n' + |
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| 127 | 'Username: ' + o.username + '\n' + |
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| 128 | 'Host name: ' + o.hostname + '\n' + |
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| 129 | 'Port: ' + o.port + '\n') |
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