Lib/idlelib/textView.py

   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()