"""Simple text browser for IDLE """ from tkinter import * from tkinter.ttk import Scrollbar from tkinter.messagebox import showerror class TextViewer(Toplevel): "A simple text viewer dialog for IDLE." def __init__(self, parent, title, text, modal=True, _htest=False, _utest=False): """Show the given text in a scrollable window with a 'close' button. If modal is left True, users cannot interact with other windows until the textview window is closed. _htest - bool; change box location when running htest. _utest - bool; don't wait_window when running unittest. """ Toplevel.__init__(self, parent) self.configure(borderwidth=5) # Place dialog below parent if running htest. self.geometry("=%dx%d+%d+%d" % (750, 500, parent.winfo_rootx() + 10, parent.winfo_rooty() + (10 if not _htest else 100))) # TODO: get fg/bg from theme. self.bg = '#ffffff' self.fg = '#000000' self.CreateWidgets() self.title(title) self.protocol("WM_DELETE_WINDOW", self.Ok) self.parent = parent self.textView.focus_set() # Bind keys for closing this dialog. self.bind('',self.Ok) self.bind('',self.Ok) self.textView.insert(0.0, text) self.textView.config(state=DISABLED) if modal: self.transient(parent) self.grab_set() if not _utest: self.wait_window() def CreateWidgets(self): "Create Frame with Text (with vertical Scrollbar) and Button." frameText = Frame(self, relief=SUNKEN, height=700) frameButtons = Frame(self) self.buttonOk = Button(frameButtons, text='Close', command=self.Ok, takefocus=FALSE) self.scrollbarView = Scrollbar(frameText, orient=VERTICAL, takefocus=FALSE) self.textView = Text(frameText, wrap=WORD, highlightthickness=0, fg=self.fg, bg=self.bg) self.scrollbarView.config(command=self.textView.yview) self.textView.config(yscrollcommand=self.scrollbarView.set) self.buttonOk.pack() self.scrollbarView.pack(side=RIGHT,fill=Y) self.textView.pack(side=LEFT,expand=TRUE,fill=BOTH) frameButtons.pack(side=BOTTOM,fill=X) frameText.pack(side=TOP,expand=TRUE,fill=BOTH) def Ok(self, event=None): self.destroy() def view_text(parent, title, text, modal=True, _utest=False): "Display text in a TextViewer." return TextViewer(parent, title, text, modal, _utest=_utest) def view_file(parent, title, filename, encoding=None, modal=True, _utest=False): "Display file in a TextViever or show error message." try: with open(filename, 'r', encoding=encoding) as file: contents = file.read() except OSError: showerror(title='File Load Error', message='Unable to load file %r .' % filename, parent=parent) except UnicodeDecodeError as err: showerror(title='Unicode Decode Error', message=str(err), parent=parent) else: return view_text(parent, title, contents, modal, _utest=_utest) if __name__ == '__main__': import unittest unittest.main('idlelib.idle_test.test_textview', verbosity=2, exit=False) from idlelib.idle_test.htest import run run(TextViewer)