{"id":1150,"date":"2018-08-18T08:51:22","date_gmt":"2018-08-18T06:51:22","guid":{"rendered":"http:\/\/pythonprogramming.altervista.org\/?p=1150"},"modified":"2018-08-27T07:54:04","modified_gmt":"2018-08-27T05:54:04","slug":"tkinter-a-text-with-a-scrollbar","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/tkinter-a-text-with-a-scrollbar\/","title":{"rendered":"Tkinter: A text with a scrollbar"},"content":{"rendered":"

Scrollbar and Text<\/h2>\n
\"text<\/a>
text + scrollbar<\/figcaption><\/figure>\n

As it is a bit complicated to put a scrollbar to a text, there is this code with an example taken fron the official documentation that makes it more easy to do it without wasting too much time trying to figure out how to do it. Here is the code that you can try to execute to test it and have an idea about how to use it for your own purposes.<\/p>\n

\"\"\"A ScrolledText widget feels like a text widget but also has a\r\nvertical scroll bar on its right.  (Later, options may be added to\r\nadd a horizontal bar as well, to make the bars disappear\r\nautomatically when not needed, to move them to the other side of the\r\nwindow, etc.)\r\nConfiguration options are passed to the Text widget.\r\nA Frame widget is inserted between the master and the text, to hold\r\nthe Scrollbar widget.\r\nMost methods calls are inherited from the Text widget; Pack, Grid and\r\nPlace methods are redirected to the Frame widget however.\r\n\"\"\"\r\n\r\n__all__ = ['ScrolledText']\r\n\r\nfrom tkinter import Frame, Text, Scrollbar, Pack, Grid, Place\r\nfrom tkinter.constants import RIGHT, LEFT, Y, BOTH\r\n\r\nclass ScrolledText(Text):\r\n    def __init__(self, master=None, **kw):\r\n        self.frame = Frame(master)\r\n        self.vbar = Scrollbar(self.frame)\r\n        self.vbar.pack(side=RIGHT, fill=Y)\r\n\r\n        kw.update({'yscrollcommand': self.vbar.set})\r\n        Text.__init__(self, self.frame, **kw)\r\n        self.pack(side=LEFT, fill=BOTH, expand=True)\r\n        self.vbar['command'] = self.yview\r\n\r\n        # Copy geometry methods of self.frame without overriding Text\r\n        # methods -- hack!\r\n        text_meths = vars(Text).keys()\r\n        methods = vars(Pack).keys() | vars(Grid).keys() | vars(Place).keys()\r\n        methods = methods.difference(text_meths)\r\n\r\n        for m in methods:\r\n            if m[0] != '_' and m != 'config' and m != 'configure':\r\n                setattr(self, m, getattr(self.frame, m))\r\n\r\n    def __str__(self):\r\n        return str(self.frame)\r\n\r\n\r\ndef example():\r\n    from tkinter.constants import END\r\n\r\n    stext = ScrolledText(bg='white', height=10)\r\n    stext.insert(END, __doc__)\r\n    stext.pack(fill=BOTH, side=LEFT, expand=True)\r\n    stext.focus_set()\r\n    stext.mainloop()\r\n\r\nif __name__ == \"__main__\":\r\n    example()<\/pre>\n\t\r\n