Demo updates for new wx namespace, from Jeff Grimmett

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24723 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/wxFileDialog.py

@@ -1,38 +1,64 @@
+# 11/17/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o Updated for wx namespace
+# 
 
-from wxPython.wx import *
-import os
+import  os
+import  wx
 
 #---------------------------------------------------------------------------
 
+# This is how you pre-establish a file filter so that the dialog
+# only shows the extention(s) you want it to.
 wildcard = "Python source (*.py)|*.py|" \
            "Compiled Python (*.pyc)|*.pyc|" \
            "All files (*.*)|*.*"
 
 def runTest(frame, nb, log):
     log.WriteText("CWD: %s\n" % os.getcwd())
-    dlg = wxFileDialog(frame, "Choose a file", os.getcwd(), "", wildcard,
-                       wxOPEN
-                       | wxMULTIPLE
-                       #| wxCHANGE_DIR
-                       )
-    if dlg.ShowModal() == wxID_OK:
+
+    # Create the dialog. In this case the current directory is forced as the starting
+    # directory for the dialog, and no default file name is forced. This can easilly
+    # be changed in your program. This is an 'open' dialog, and allows multitple
+    # file selection to boot.
+    #
+    # Finally, of the directory is changed in the process of getting files, this
+    # dialog is set up to change the current working directory to the path chosen.
+    dlg = wx.FileDialog(
+        frame, message="Choose a file", defaultDir=os.getcwd(), 
+        defaultFile="", wildcard=wildcard, style=wx.OPEN | wx.MULTIPLE | wx.CHANGE_DIR
+        )
+        
+    # Show the dialog and retrieve the user response. If it is the OK response, 
+    # process the data.
+    if dlg.ShowModal() == wx.ID_OK:
+        # This returns a Python list of files that were selected.
         paths = dlg.GetPaths()
+
         log.WriteText('You selected %d files:' % len(paths))
+
         for path in paths:
             log.WriteText('           %s\n' % path)
+
+    # Compare this with the debug above; did we change working dirs?
     log.WriteText("CWD: %s\n" % os.getcwd())
+
+    # Destroy the dialog. Don't do this until you are done with it!
+    # BAD things can happen otherwise!
     dlg.Destroy()
 
 #---------------------------------------------------------------------------
 
 
-
-
-
-
-
 overview = """\
-This class provides the file chooser dialog.
+This class provides the file selection dialog. It incorporates OS-native features
+depending on the OS in use, and can be used both for open and save operations. 
+The files displayed can be filtered by setting up a wildcard filter, multiple files
+can be selected (open only), and files can be forced in a read-only mode.
+
+There are two ways to get the results back from the dialog. GetFiles() returns only
+the file names themselves, in a Python list. GetPaths() returns the full path and 
+filenames combined as a Python list.
 
 """