/Lib/idlelib/textView.py

 1"""Simple text browser for IDLE
 2
 3"""
 4
 5from Tkinter import *
 6import tkMessageBox
 7
 8class 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
60def view_text(parent, title, text):
61    TextViewer(parent, title, text)
62
63def 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
79if __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()