improve viewfile handling

indentation style changed to match existing source

Lib/idlelib/aboutDialog.py

@@ -8,7 +8,7 @@
 about box for idle
 """
 from Tkinter import *
-import string
+import string, os
 import textView
 import idlever
 class AboutDialog(Toplevel):
@@ -116,12 +116,14 @@ class AboutDialog(Toplevel):
         self.buttonLicense.invoke()
 
     def ShowLicense(self):
-    textView.TextViewer(self,title='About - Readme',
-          fileName='./README.txt')
+        self.ViewFile('About - Readme','README.txt')
         
     def ShowCredits(self):
-    textView.TextViewer(self,title='About - Credits',
-          fileName='./CREDITS.txt')
+        self.ViewFile('About - Credits','CREDITS.txt')
+
+    def ViewFile(self,viewTitle,viewFile):
+        fn=os.path.join(os.path.abspath(os.path.dirname(__file__)),viewFile)
+        textView.TextViewer(self,viewTitle,fn)
 
     def Ok(self, event=None):
         self.destroy()
@@ -129,5 +131,8 @@ class AboutDialog(Toplevel):
 if __name__ == '__main__':
     #test the dialog
     root=Tk()
-  Button(root,text='About',command=lambda:AboutDialog(root,'About')).pack()
+    def run():
+        import aboutDialog
+        aboutDialog.AboutDialog(root,'About')
+    Button(root,text='Dialog',command=run).pack()
     root.mainloop()