1 | n/a | # general purpose 'tooltip' routines - currently unused in idlelib |
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2 | n/a | # (although the 'calltips' extension is partly based on this code) |
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3 | n/a | # may be useful for some purposes in (or almost in ;) the current project scope |
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4 | n/a | # Ideas gleaned from PySol |
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5 | n/a | |
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6 | n/a | from tkinter import * |
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7 | n/a | |
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8 | n/a | class ToolTipBase: |
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9 | n/a | |
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10 | n/a | def __init__(self, button): |
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11 | n/a | self.button = button |
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12 | n/a | self.tipwindow = None |
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13 | n/a | self.id = None |
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14 | n/a | self.x = self.y = 0 |
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15 | n/a | self._id1 = self.button.bind("<Enter>", self.enter) |
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16 | n/a | self._id2 = self.button.bind("<Leave>", self.leave) |
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17 | n/a | self._id3 = self.button.bind("<ButtonPress>", self.leave) |
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18 | n/a | |
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19 | n/a | def enter(self, event=None): |
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20 | n/a | self.schedule() |
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21 | n/a | |
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22 | n/a | def leave(self, event=None): |
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23 | n/a | self.unschedule() |
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24 | n/a | self.hidetip() |
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25 | n/a | |
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26 | n/a | def schedule(self): |
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27 | n/a | self.unschedule() |
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28 | n/a | self.id = self.button.after(1500, self.showtip) |
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29 | n/a | |
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30 | n/a | def unschedule(self): |
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31 | n/a | id = self.id |
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32 | n/a | self.id = None |
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33 | n/a | if id: |
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34 | n/a | self.button.after_cancel(id) |
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35 | n/a | |
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36 | n/a | def showtip(self): |
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37 | n/a | if self.tipwindow: |
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38 | n/a | return |
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39 | n/a | # The tip window must be completely outside the button; |
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40 | n/a | # otherwise when the mouse enters the tip window we get |
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41 | n/a | # a leave event and it disappears, and then we get an enter |
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42 | n/a | # event and it reappears, and so on forever :-( |
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43 | n/a | x = self.button.winfo_rootx() + 20 |
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44 | n/a | y = self.button.winfo_rooty() + self.button.winfo_height() + 1 |
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45 | n/a | self.tipwindow = tw = Toplevel(self.button) |
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46 | n/a | tw.wm_overrideredirect(1) |
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47 | n/a | tw.wm_geometry("+%d+%d" % (x, y)) |
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48 | n/a | self.showcontents() |
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49 | n/a | |
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50 | n/a | def showcontents(self, text="Your text here"): |
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51 | n/a | # Override this in derived class |
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52 | n/a | label = Label(self.tipwindow, text=text, justify=LEFT, |
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53 | n/a | background="#ffffe0", relief=SOLID, borderwidth=1) |
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54 | n/a | label.pack() |
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55 | n/a | |
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56 | n/a | def hidetip(self): |
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57 | n/a | tw = self.tipwindow |
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58 | n/a | self.tipwindow = None |
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59 | n/a | if tw: |
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60 | n/a | tw.destroy() |
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61 | n/a | |
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62 | n/a | class ToolTip(ToolTipBase): |
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63 | n/a | def __init__(self, button, text): |
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64 | n/a | ToolTipBase.__init__(self, button) |
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65 | n/a | self.text = text |
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66 | n/a | def showcontents(self): |
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67 | n/a | ToolTipBase.showcontents(self, self.text) |
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68 | n/a | |
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69 | n/a | class ListboxToolTip(ToolTipBase): |
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70 | n/a | def __init__(self, button, items): |
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71 | n/a | ToolTipBase.__init__(self, button) |
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72 | n/a | self.items = items |
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73 | n/a | def showcontents(self): |
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74 | n/a | listbox = Listbox(self.tipwindow, background="#ffffe0") |
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75 | n/a | listbox.pack() |
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76 | n/a | for item in self.items: |
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77 | n/a | listbox.insert(END, item) |
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78 | n/a | |
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79 | n/a | def _tooltip(parent): # htest # |
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80 | n/a | top = Toplevel(parent) |
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81 | n/a | top.title("Test tooltip") |
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82 | n/a | x, y = map(int, parent.geometry().split('+')[1:]) |
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83 | n/a | top.geometry("+%d+%d" % (x, y + 150)) |
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84 | n/a | label = Label(top, text="Place your mouse over buttons") |
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85 | n/a | label.pack() |
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86 | n/a | button1 = Button(top, text="Button 1") |
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87 | n/a | button2 = Button(top, text="Button 2") |
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88 | n/a | button1.pack() |
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89 | n/a | button2.pack() |
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90 | n/a | ToolTip(button1, "This is tooltip text for button1.") |
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91 | n/a | ListboxToolTip(button2, ["This is","multiple line", |
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92 | n/a | "tooltip text","for button2"]) |
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93 | n/a | |
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94 | n/a | if __name__ == '__main__': |
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95 | n/a | from idlelib.idle_test.htest import run |
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96 | n/a | run(_tooltip) |
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