Mercurial > cpython-lru_cache-weakref

annotate Lib/tkinter/scrolledtext.py @ 78069:a8aa77458e12 3.2

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Add c_size_t and c_ssize_t to the ctypes summary table.
author Antoine Pitrou <solipsis@pitrou.net>
date Thu, 12 Jul 2012 20:31:50 +0200
parents 3c9232a684ae
children
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1 """A ScrolledText widget feels like a text widget but also has a
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2 vertical scroll bar on its right. (Later, options may be added to
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3 add a horizontal bar as well, to make the bars disappear
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4 automatically when not needed, to move them to the other side of the
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5 window, etc.)
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6
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7 Configuration options are passed to the Text widget.
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8 A Frame widget is inserted between the master and the text, to hold
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9 the Scrollbar widget.
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10 Most methods calls are inherited from the Text widget; Pack, Grid and
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11 Place methods are redirected to the Frame widget however.
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12 """
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13
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14 __all__ = ['ScrolledText']
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15
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16 from tkinter import Frame, Text, Scrollbar, Pack, Grid, Place
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17 from tkinter.constants import RIGHT, LEFT, Y, BOTH
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18
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19 class ScrolledText(Text):
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20 def __init__(self, master=None, **kw):
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21 self.frame = Frame(master)
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22 self.vbar = Scrollbar(self.frame)
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23 self.vbar.pack(side=RIGHT, fill=Y)
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24
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25 kw.update({'yscrollcommand': self.vbar.set})
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26 Text.__init__(self, self.frame, **kw)
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27 self.pack(side=LEFT, fill=BOTH, expand=True)
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28 self.vbar['command'] = self.yview
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29
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30 # Copy geometry methods of self.frame without overriding Text
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31 # methods -- hack!
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32 text_meths = vars(Text).keys()
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33 methods = vars(Pack).keys() | vars(Grid).keys() | vars(Place).keys()
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34 methods = methods.difference(text_meths)
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35
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36 for m in methods:
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37 if m[0] != '_' and m != 'config' and m != 'configure':
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38 setattr(self, m, getattr(self.frame, m))
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39
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40 def __str__(self):
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41 return str(self.frame)
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42
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43
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44 def example():
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45 from tkinter.constants import END
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46
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47 stext = ScrolledText(bg='white', height=10)
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48 stext.insert(END, __doc__)
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49 stext.pack(fill=BOTH, side=LEFT, expand=True)
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50 stext.focus_set()
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51 stext.mainloop()
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52
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53 if __name__ == "__main__":
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54 example()