"""Simple text browser for IDLE

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"""

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from Tkinter import *

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import tkMessageBox

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class TextViewer(Toplevel):

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"""A simple text viewer dialog for IDLE

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"""

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def __init__(self, parent, title, text, modal=True, _htest=False):

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"""Show the given text in a scrollable window with a 'close' button

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If modal option set to False, user can interact with other windows,

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otherwise they will be unable to interact with other windows until

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the textview window is closed.

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_htest - bool; change box location when running htest.

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"""

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Toplevel.__init__(self, parent)

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self.configure(borderwidth=5)

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# place dialog below parent if running htest

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self.geometry("=%dx%d+%d+%d" % (750, 500,

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parent.winfo_rootx() + 10,

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parent.winfo_rooty() + (10 if not _htest else 100)))

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#elguavas - config placeholders til config stuff completed

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self.bg = '#ffffff'

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self.fg = '#000000'

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self.CreateWidgets()

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self.title(title)

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self.protocol("WM_DELETE_WINDOW", self.Ok)

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self.parent = parent

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self.textView.focus_set()

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#key bindings for this dialog

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self.bind('<Return>',self.Ok) #dismiss dialog

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self.bind('<Escape>',self.Ok) #dismiss dialog

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self.textView.insert(0.0, text)

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self.textView.config(state=DISABLED)

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self.is_modal = modal

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if self.is_modal:

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self.transient(parent)

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self.grab_set()

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self.wait_window()

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def CreateWidgets(self):

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frameText = Frame(self, relief=SUNKEN, height=700)

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frameButtons = Frame(self)

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self.buttonOk = Button(frameButtons, text='Close',

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command=self.Ok, takefocus=FALSE)

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self.scrollbarView = Scrollbar(frameText, orient=VERTICAL,

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takefocus=FALSE, highlightthickness=0)

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self.textView = Text(frameText, wrap=WORD, highlightthickness=0,

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fg=self.fg, bg=self.bg)

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self.scrollbarView.config(command=self.textView.yview)

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self.textView.config(yscrollcommand=self.scrollbarView.set)

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self.buttonOk.pack()

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self.scrollbarView.pack(side=RIGHT,fill=Y)

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self.textView.pack(side=LEFT,expand=TRUE,fill=BOTH)

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frameButtons.pack(side=BOTTOM,fill=X)

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frameText.pack(side=TOP,expand=TRUE,fill=BOTH)

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def Ok(self, event=None):

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if self.is_modal:

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self.grab_release()

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self.destroy()

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def view_text(parent, title, text, modal=True):

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return TextViewer(parent, title, text, modal)

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def view_file(parent, title, filename, encoding=None, modal=True):

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try:

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if encoding:

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import codecs

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textFile = codecs.open(filename, 'r')

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else:

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textFile = open(filename, 'r')

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except IOError:

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tkMessageBox.showerror(title='File Load Error',

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message='Unable to load file %r .' % filename,

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parent=parent)

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except UnicodeDecodeError as err:

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showerror(title='Unicode Decode Error',

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message=str(err),

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parent=parent)

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else:

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return view_text(parent, title, textFile.read(), modal)

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if __name__ == '__main__':

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import unittest

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unittest.main('idlelib.idle_test.test_textview', verbosity=2, exit=False)

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from idlelib.idle_test.htest import run

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run(TextViewer)

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