def OnOpen(self, event):
# get a valid path from user
dirDialog = wx.DirDialog(self, "Choose a directory for open:", \
style=wx.DD_DEFAULT_STYLE)
if platform.system() == 'Windows':
dirDialog.SetPath('D:\\Projects\\treeseal-example') # TESTING
else:
dirDialog.SetPath('/home/phil/Projects/treeseal-example') # TESTING
if dirDialog.ShowModal() == wx.ID_OK:
self.UpdateRootDir(dirDialog.GetPath())
else:
self.UpdateRootDir(None)
return
# check pre-conditions
if not os.path.exists(self.metaDir):
wx.MessageBox('Path "' + self.rootDir + '" is no valid root dir.', \
'Error', wx.OK | wx.ICON_ERROR)
self.UpdateRootDir(None)
return
if not os.path.exists(self.dbFile):
wx.MessageBox('Cannot find database file "' + self.dbFile + '".', \
'Error', wx.OK | wx.ICON_ERROR)
self.UpdateRootDir(None)
return
if not os.path.exists(self.sigFile):
dial = wx.MessageBox('Cannot find database signature file "' + self.sigFile + '".\n\nUse database without verification?', \
'Warning', wx.YES_NO | wx.ICON_WARNING | wx.NO_DEFAULT)
if not dial == wx.YES:
self.UpdateRootDir(None)
return
else:
cs = Checksum()
cs.calculateForFile(self.dbFile)
if not cs.isValidUsingSavedFile(self.sigFile):
dial = wx.MessageBox('Database or database signature file have been corrupted.\n\nUse database without verification?', \
'Warning', wx.YES_NO | wx.ICON_WARNING | wx.NO_DEFAULT)
if not dial == wx.YES:
self.UpdateRootDir(None)
return
# close eventually existing previous instance
self.list.ClearInstance()
self.SetStatusBarText()
# load preferences or create default ones
self.preferences = Preferences()
if os.path.exists(self.preferencesFile):
self.preferences.load(self.preferencesFile)
else:
self.preferences.save(self.preferencesFile)
def close(self):
if self.isOpen():
self.dbClose()
cs = Checksum()
cs.calculateForFile(self.__databaseFile)
cs.saveToFile(self.__signatureFile)