1 """Simple text browser for IDLE

     2 

     3 """

     4 

     5 from Tkinter import *

     6 import tkMessageBox

     7 

     8 class TextViewer(Toplevel):

     9     """A simple text viewer dialog for IDLE

    10 

    11     """

    12     def __init__(self, parent, title, text):

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

    14 

    15         """

    16         Toplevel.__init__(self, parent)

    17         self.configure(borderwidth=5)

    18         self.geometry("=%dx%d+%d+%d" % (625, 500,

    19                                         parent.winfo_rootx() + 10,

    20                                         parent.winfo_rooty() + 10))

    21         #elguavas - config placeholders til config stuff completed

    22         self.bg = '#ffffff'

    23         self.fg = '#000000'

    24 

    25         self.CreateWidgets()

    26         self.title(title)

    27         self.transient(parent)

    28         self.grab_set()

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

    30         self.parent = parent

    31         self.textView.focus_set()

    32         #key bindings for this dialog

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

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

    35         self.textView.insert(0.0, text)

    36         self.textView.config(state=DISABLED)

    37         self.wait_window()

    38 

    39     def CreateWidgets(self):

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

    41         frameButtons = Frame(self)

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

    43                                command=self.Ok, takefocus=FALSE)

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

    45                                        takefocus=FALSE, highlightthickness=0)

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

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

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

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

    50         self.buttonOk.pack()

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

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

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

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

    55 

    56     def Ok(self, event=None):

    57         self.destroy()

    58 

    59 

    60 def view_text(parent, title, text):

    61     TextViewer(parent, title, text)

    62 

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

    64     try:

    65         if encoding:

    66             import codecs

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

    68         else:

    69             textFile = open(filename, 'r')

    70     except IOError:

    71         import tkMessageBox

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

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

    74                                parent=parent)

    75     else:

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

    77 

    78 

    79 if __name__ == '__main__':

    80     #test the dialog

    81     root=Tk()

    82     root.title('textView test')

    83     filename = './textView.py'

    84     text = file(filename, 'r').read()

    85     btn1 = Button(root, text='view_text',

    86                  command=lambda:view_text(root, 'view_text', text))

    87     btn1.pack(side=LEFT)

    88     btn2 = Button(root, text='view_file',

    89                   command=lambda:view_file(root, 'view_file', filename))

    90     btn2.pack(side=LEFT)

    91     close = Button(root, text='Close', command=root.destroy)

    92     close.pack(side=RIGHT)

    93     root.mainloop()