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import os
import wx
#---------------------------------------------------------------------------
# This is how you pre-establish a file filter so that the dialog
# only shows the extension(s) you want it to.
wildcard = "Python source (*.py)|*.py|" \
"Compiled Python (*.pyc)|*.pyc|" \
"SPAM files (*.spam)|*.spam|" \
"Egg file (*.egg)|*.egg|" \
"All files (*.*)|*.*"
#---------------------------------------------------------------------------
class TestPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
b = wx.Button(self, -1, "Create and Show an OPEN FileDialog", (50,50))
self.Bind(wx.EVT_BUTTON, self.OnButton, b)
b = wx.Button(self, -1, "Create and Show a SAVE FileDialog", (50,90))
self.Bind(wx.EVT_BUTTON, self.OnButton2, b)
def OnButton(self, evt):
self.log.WriteText("CWD: %s\n" % os.getcwd())
# 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 selections as well.
#
# Finally, if 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(
self, 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()
self.log.WriteText('You selected %d files:' % len(paths))
for path in paths:
self.log.WriteText(' %s\n' % path)
# Compare this with the debug above; did we change working dirs?
self.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()
def OnButton2(self, evt):
self.log.WriteText("CWD: %s\n" % os.getcwd())
# 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 'save' dialog.
#
# Unlike the 'open dialog' example found elsewhere, this example does NOT
# force the current working directory to change if the user chooses a different
# directory than the one initially set.
dlg = wx.FileDialog(
self, message="Save file as ...", defaultDir=os.getcwd(),
defaultFile="", wildcard=wildcard, style=wx.SAVE
)
# This sets the default filter that the user will initially see. Otherwise,
# the first filter in the list will be used by default.
dlg.SetFilterIndex(2)
# Show the dialog and retrieve the user response. If it is the OK response,
# process the data.
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
self.log.WriteText('You selected "%s"' % path)
# Normally, at this point you would save your data using the file and path
# data that the user provided to you, but since we didn't actually start
# with any data to work with, that would be difficult.
#
# The code to do so would be similar to this, assuming 'data' contains
# the data you want to save:
#
# fp = file(path, 'w') # Create file anew
# fp.write(data)
# fp.close()
#
# You might want to add some error checking :-)
#
# Note that the current working dir didn't change. This is good since
# that's the way we set it up.
self.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()
#---------------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
return win
#---------------------------------------------------------------------------
overview = """\
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.
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
|
