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Transana.py
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Transana.py
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# Copyright (C) 2003 - 2015 The Board of Regents of the University of Wisconsin System
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
"""This file implements the Transana class, which is the main Transana application
definition."""
__author__ = 'David Woods <dwoods@wcer.wisc.edu>, Nathaniel Case'
"""
Transana 2.61 uses the following programming tools and modules:
Program Win Version Mac Version
Python 2.6.6 2.6.6
(NOTE: Python 2.6.6 on OS X and 2.7.1 on OS X have a bug that prevents SSL socket connections
from working correctly when the certificates have been created on Ubuntu 14.04.)
(NOTE: I've started work to convert to Python 2.7.7 on Windows and Python 2.7.1 on OS X.)
wxPython 3.0.0.0 2.9.5.0.b20130318
(NOTE: wxPython 3.0.0.0 on OS X has a bug that prevents drag-and-drop from working in the
Database Tree. However, wxPython 2.9.5.0b20130318 on OS X has a bug that prevents
selecting text off the edge of the screen in the RichTextCtrl.)
(NOTE: wxPython 3.x does not currently work with Python 3.3.x. Specifically, the wxMediaCtrl
doesn't work.)
MySQL for Python (embedded)(Python 2.6.6) 1.2.3c1 1.2.3
(NOTE: I can get MySQL for Python (embedded) to work with Python 2.6.x, but not 2.7.x,
especially on Windows.)
MySQL for Python (server)(Python 2.6.6) 1.2.3c1 1.2.4b4
SQLite (embedded)(Python 2.7.x) 2.6.0
PyMySQL (server)(Python 2.7.x)
MySQL (embedded) 5.1.44 5.5.27
ctypes 1.1.0 1.1.0
Crypto 2.3 2.6
paramiko 1.7.7.1 1.7.7.1
"""
import sys # import Python's sys module
import wx # import wxPython's wxWindows implementation
import os
import gettext # localization module
if __name__ == '__main__':
# Define the "_" method, pointing it to wxPython's GetTranslation method
__builtins__._ = wx.GetTranslation
from TransanaExceptions import * # import all exception classes
import Dialogs # import Transana Error Dialog
import TransanaConstants # import the Transana Constants
import TransanaGlobal # import Transana's Global Variables
# Import Transana's Images
import TransanaImages
from ControlObjectClass import ControlObject # import the Transana Control Object
if "__WXMAC__" in wx.PlatformInfo:
import MacOS
import DBInterface # import the Database Interface module
import time # import the time module (Python)
# import Transana's ConfigData module
import ConfigData
import pickle # import Python's pickle module
DEBUG = False
if DEBUG:
print "Transana DEBUG is ON!!"
print
print "wxPython version loaded: ", wx.VERSION_STRING,
if 'unicode' in wx.PlatformInfo:
print "- unicode"
else:
print "- ansi"
print
class Transana(wx.App):
"""This class contains the main Transana application definition and the
logic that instantiates all other objects."""
def OnInit(self):
""" Initialize the application """
# If we have a Workshop Version, see if the version is still valid, report to the user and exit if not.
# NOTE: This code just provides a user message and clean exit. Transana will still be disabled if this
# code is removed. (This code is user-accessible on OS X!)
if TransanaConstants.workshopVersion:
import datetime
t1 = TransanaConstants.startdate
t2 = TransanaConstants.expirationdate
t3 = time.localtime()
t4 = datetime.datetime(t3[0], t3[1], t3[2], t3[3], t3[4])
if (t1 > t4) or (t2 < t4):
dlg = Dialogs.ErrorDialog(None, "This copy of Transana is no longer valid.")
dlg.ShowModal()
dlg.Destroy
return False
# In wxPython, you used to be able to initialize the ConfigData object in the TransanaGlobal module, even though the
# wx.App() hadn't been initialized yet. Moving from wxPython 2.8.1 to wxPython 2.8.9, this stopped being true
# at least on the Mac. Therefore, we moved creation of the ConfigData object to here in the code.
# However, there are MANY references to ConfigData being in the TransanaGlobal module, so that's where we'll keep it.
TransanaGlobal.configData = ConfigData.ConfigData()
# If we are running from a BUILD instead of source code ...
if hasattr(sys, "frozen"): # or ('wxMac' in wx.PlatformInfo):
# See if the Default Profile Path exists. If not ...
if not os.path.exists(TransanaGlobal.configData.GetDefaultProfilePath()):
# ... then create it (recursively).
os.makedirs(TransanaGlobal.configData.GetDefaultProfilePath())
# Build the path for the error log
path = os.path.join(TransanaGlobal.configData.GetDefaultProfilePath(), 'Transana_Error.log')
# redirect output to the error log
self.RedirectStdio(filename=path)
# Put a startup indicator in the Error Log
print "Transana started:", time.asctime()
# If no Language is defined ...
if TransanaGlobal.configData.language == '':
# ... then we know this is the first startup for this user profile. Remember that!
firstStartup = True
# If language is known ...
else:
# ... then it's NOT first time startup.
firstStartup = False
# Now that we've loaded the Configuration Data, we can see if we need to alter the default encoding
# If we're on Windows, single-user, using Russian, use KOI8r encoding instead of Latin-1,
# Chinese uses big5, Japanese uses cp932, and Korean uses cp949
## if ('wxMSW' in wx.PlatformInfo) and (TransanaConstants.singleUserVersion):
## if (TransanaGlobal.configData.language == 'ru'):
## TransanaGlobal.encoding = 'koi8_r'
## elif (TransanaGlobal.configData.language == 'zh'):
## TransanaGlobal.encoding = TransanaConstants.chineseEncoding
## elif (TransanaGlobal.configData.language == 'el'):
## TransanaGlobal.encoding = 'iso8859_7'
## elif (TransanaGlobal.configData.language == 'ja'):
## TransanaGlobal.encoding = 'cp932'
## elif (TransanaGlobal.configData.language == 'ko'):
## TransanaGlobal.encoding = 'cp949'
# Use UTF-8 Encoding throughout Transana to allow maximum internationalization
if ('unicode' in wx.PlatformInfo) and (wx.VERSION_STRING >= '2.6'):
wx.SetDefaultPyEncoding('utf_8')
# On OS/X, change the working directory to the directory the script is
# running from, this is necessary for running from a bundle.
if "__WXMAC__" in wx.PlatformInfo:
if TransanaGlobal.programDir != '':
os.chdir(TransanaGlobal.programDir)
import MenuWindow # import Menu Window Object
sys.excepthook = transana_excepthook # Define the system exception handler
# First, determine the program name that should be displayed, single or multi-user
if TransanaConstants.singleUserVersion:
if TransanaConstants.proVersion:
programTitle = _("Transana - Professional")
else:
programTitle = _("Transana - Standard")
else:
programTitle = _("Transana - Multiuser")
# Ammend the program title for the Demo version if appropriate
if TransanaConstants.demoVersion:
programTitle += _(" - Demonstration")
# Create the Menu Window
TransanaGlobal.menuWindow = MenuWindow.MenuWindow(None, -1, programTitle)
# Create the global transana graphics colors, once the ConfigData object exists.
TransanaGlobal.transana_graphicsColorList = TransanaGlobal.getColorDefs(TransanaGlobal.configData.colorConfigFilename)
# Set essential global color manipulation data structures once the ConfigData object exists.
(TransanaGlobal.transana_colorNameList, TransanaGlobal.transana_colorLookup, TransanaGlobal.keywordMapColourSet) = TransanaGlobal.SetColorVariables()
# Add the RTF modules to the Python module search path. This allows
# us to import from a directory other than the standard search paths
# and the current directory/subdirectories.
sys.path.append("rtf")
# Load the Splash Screen graphic
bitmap = TransanaImages.splash.GetBitmap()
# We need to draw the Version Number onto the Splash Screen Graphic.
# First, create a Memory DC
memoryDC = wx.MemoryDC()
# Select the bitmap into the Memory DC
memoryDC.SelectObject(bitmap)
# Build the Version label
if TransanaConstants.singleUserVersion:
if TransanaConstants.labVersion:
versionLbl = _("Computer Lab Version")
elif TransanaConstants.demoVersion:
versionLbl = _("Demonstration Version")
elif TransanaConstants.workshopVersion:
versionLbl = _("Workshop Version")
else:
if TransanaConstants.proVersion:
versionLbl = _("Professional Version")
else:
versionLbl = _("Standard Version")
else:
versionLbl = _("Multi-user Version")
versionLbl += " %s"
# Determine the size of the version text
(verWidth, verHeight) = memoryDC.GetTextExtent(versionLbl % TransanaConstants.versionNumber)
# Add the Version Number text to the Memory DC (and therefore the bitmap)
memoryDC.DrawText(versionLbl % TransanaConstants.versionNumber, 370 - verWidth, 156)
# Clear the bitmap from the Memory DC, thus freeing it to be displayed!
memoryDC.SelectObject(wx.EmptyBitmap(10, 10))
# If the Splash Screen Graphic exists, display the Splash Screen for 4 seconds.
# If not, raise an exception.
if bitmap:
# Mac requires a different style, as "STAY_ON_TOP" adds a header to the Splash Screen
if "__WXMAC__" in wx.PlatformInfo:
splashStyle = wx.SIMPLE_BORDER
else:
splashStyle = wx.SIMPLE_BORDER | wx.STAY_ON_TOP
# If we have a Right-To-Left language ...
if TransanaGlobal.configData.LayoutDirection == wx.Layout_RightToLeft:
# ... we need to reverse the image direcion
bitmap = bitmap.ConvertToImage().Mirror().ConvertToBitmap()
splashPosition = wx.DefaultPosition
## This doesn't work. I have not been able to put the Splash Screen anywhere but on the Center of
## Monitor 0 (with wx.SPASH_CENTER_ON_SCREEN) or the upper left corner of Monitor 0 (without it). Bummer.
## # Get the Size and Position for the PRIMARY screen
## (x1, y1, w1, h1) = wx.Display(TransanaGlobal.configData.primaryScreen).GetClientArea()
## (x2, y2) = bitmap.GetSize()
##
## splashPosition = (int(float(w1) / 2.0) + x1 - int(float(x2) / 2.0),
## int(float(h1) / 2.0) + y1 - int(float(y2) / 2.0))
##
## print "Splash Screen Position:"
## print TransanaGlobal.configData.primaryScreen
## print x1, y1, w1, h1
## print x2, y2
## print splashPosition
## print
# Create the SplashScreen object
splash = wx.SplashScreen(bitmap,
wx.SPLASH_CENTER_ON_SCREEN | wx.SPLASH_TIMEOUT,
4000, None, -1, splashPosition, wx.DefaultSize, splashStyle)
else:
raise ImageLoadError, \
_("Unable to load Transana's splash screen image. Installation error?")
wx.Yield()
if DEBUG:
print "Number of Monitors:", wx.Display.GetCount()
for x in range(wx.Display.GetCount()):
print " ", x, wx.Display(x).IsPrimary(), wx.Display(x).GetGeometry(), wx.Display(x).GetClientArea()
print
import DataWindow # import Data Window Object
import VideoWindow # import Video Window Object
# import Transcript Window Object
if TransanaConstants.USESRTC:
import TranscriptionUI_RTC as TranscriptionUI
else:
import TranscriptionUI
import VisualizationWindow # import Visualization Window Object
import exceptions # import exception handler (Python)
# if we're running the multi-user version of Transana ...
if not TransanaConstants.singleUserVersion:
# ... import the Transana ChatWindow module
import ChatWindow
# Initialize all main application Window Objects
# If we're running the Lab version OR we're on the Mac ...
if TransanaConstants.labVersion or ('wxMac' in wx.PlatformInfo):
# ... then pausing for 4 seconds delays the appearance of the Lab initial configuration dialog
# or the Mac version login / database dialog until the Splash screen closes.
time.sleep(4)
# If we are running the Lab version ...
if TransanaConstants.labVersion:
# ... we want an initial configuration screen. Start by importing Transana's Option Settings dialog
import OptionsSettings
# Initialize all paths to BLANK for the lab version
TransanaGlobal.configData.videoPath = ''
TransanaGlobal.configData.visualizationPath = ''
TransanaGlobal.configData.databaseDir = ''
# Create the config dialog for the Lab initial configuration
options = OptionsSettings.OptionsSettings(TransanaGlobal.menuWindow, lab=True)
options.Destroy()
wx.Yield()
# If the databaseDir is blank, user pressed CANCEL ...
if (TransanaGlobal.configData.databaseDir == ''):
# ... and we should quit immediately, signalling failure
return False
# initialze a variable indicating database connection to False (assume the worst.)
connectionEstablished = False
# Let's trap the situation where the database folder is not available.
try:
# Start MySQL if using the embedded version
if TransanaConstants.singleUserVersion:
DBInterface.InitializeSingleUserDatabase()
# If we get here, we've been successful! (NOTE that MU merely changes our default from False to True!)
connectionEstablished = True
except:
if DEBUG:
import traceback
print sys.exc_info()[0], sys.exc_info()[1]
traceback.print_exc(file=sys.stdout)
msg = _('Transana is unable to access any Database at "%s".\nPlease check to see if this path is available.')
if not TransanaConstants.labVersion:
msg += '\n' + _('Would you like to restore the default Database path?')
if ('unicode' in wx.PlatformInfo) and isinstance(msg, str):
msg = unicode(msg, 'utf8')
msg = msg % TransanaGlobal.configData.databaseDir
if TransanaConstants.labVersion:
dlg = Dialogs.ErrorDialog(None, msg)
dlg.ShowModal()
dlg.Destroy()
return False
# If we're on the Single-user version for Windows ...
if TransanaConstants.singleUserVersion:
# ... determine the file name for the data conversion information pickle file
fs = os.path.join(TransanaGlobal.configData.databaseDir, '260_300_Convert.pkl')
# If there is data in mid-conversion ...
if os.path.exists(fs):
# ... get the conversion data from the Pickle File
f = file(fs, 'r')
# exportedDBs is a dictionary containing the Transana-XML file name and the encoding of each DB to be imported
self.exportedDBs = pickle.load(f)
# Close the pickle file
f.close()
# Prompt the user about importing the converted data
prompt = unicode(_("Transana has detected one or more databases ready for conversion.\nDo you want to convert those databases now?"), 'utf8')
tmpDlg = Dialogs.QuestionDialog(TransanaGlobal.menuWindow, prompt, _("Database Conversion"))
result = tmpDlg.LocalShowModal()
tmpDlg.Destroy()
# If the user wants to do the conversion now ...
if result == wx.ID_YES:
# ... import Transana's XML Import code
import XMLImport
# Before we go further, let's make sure none of the conversion files have ALREADY been imported!
# The 2.42 to 2.50 Data Conversion Utility shouldn't allow this, but it doesn't hurt to check.
# Iterate through the conversion data
for key in self.exportedDBs:
# Determine the file path for the converted database
newDBPath = os.path.join(TransanaGlobal.configData.databaseDir, key + '.db')
# If the converted database ALREADY EXISTS ...
if os.path.exists(newDBPath):
# ... create an error message
prompt = unicode(_('Database "%s" already exists.\nDatabase "%s" cannot be converted at this time.'), 'utf8')
# ... display an error message
tmpDlg = Dialogs.ErrorDialog(None, prompt % (key, key))
tmpDlg.ShowModal()
tmpDlg.Destroy()
# If the converted database does NOT exist ...
else:
if 'wxMac' in wx.PlatformInfo:
prompt = _('Converting "%s"\nThis process may take a long time, depending on how much data this database contains.\nWe cannot provide progress feedback on OS X. Please be patient.')
progWarn = Dialogs.PopupDialog(None, _("Converting Databases"), prompt % key)
# Create the Import Database, passing the database name so the user won't be prompted for one.
DBInterface.establish_db_exists(dbToOpen = key, usePrompt=False)
# Import the database.
# First, create an Import Database dialog, but don't SHOW it.
temp = XMLImport.XMLImport(TransanaGlobal.menuWindow, -1, _('Transana XML Import'), importData=self.exportedDBs[key])
# ... Import the requested data!
temp.Import()
# Close the Import Database dialog
temp.Close()
if 'wxMac' in wx.PlatformInfo:
progWarn.Destroy()
progWarn = None
# Close the database that was just imported
DBInterface.close_db()
# Clear the current database name from the Config data
TransanaGlobal.configData.database = ''
# If we do NOT have a localhost key (which Lab version does not!) ...
if not TransanaGlobal.configData.databaseList.has_key('localhost'):
# ... let's create one so we can pass the converted database name!
TransanaGlobal.configData.databaseList['localhost'] = {}
TransanaGlobal.configData.databaseList['localhost']['dbList'] = []
# Update the database name
TransanaGlobal.configData.database = key
# Add the new (converted) database name to the database list
TransanaGlobal.configData.databaseList['localhost']['dbList'].append(key.encode('utf8'))
# Start exception handling
try:
# If we're NOT in the lab version of Transana ...
if not TransanaConstants.labVersion:
# This is harder than it should be because of a combination of encoding and case-changing issues.
# Let's iterate through the Version 2.5 "paths by database" config data
for key2 in TransanaGlobal.configData.pathsByDB2.keys():
# If we have a LOCAL database with a matching key to the database being imported ...
if (key2[0] == '') and (key2[1] == 'localhost') and (key2[2].decode('utf8').lower() == key):
# Add the unconverted database's PATH values to the CONVERTED database's configuration!
TransanaGlobal.configData.pathsByDB[('', 'localhost', key.encode('utf8'))] = \
{'visualizationPath' : TransanaGlobal.configData.pathsByDB2[key2]['visualizationPath'],
'videoPath' : TransanaGlobal.configData.pathsByDB2[key2]['videoPath']}
# ... and we can stop looking
break
# Save the altered configuration data
TransanaGlobal.configData.SaveConfiguration()
# The Computer Lab version sometimes throws a KeyError
except exceptions.KeyError:
# If this comes up, we can ignore it.
pass
# Delete the Import File Information
os.remove(fs)
if DEBUG:
print "Done importing Files"
# We can only continue if we initialized the database OR are running MU.
if connectionEstablished:
# If a new database login fails three times, we need to close the program.
# Initialize a counter to track that.
logonCount = 1
# Flag if Logon succeeds
loggedOn = False
# Keep trying for three tries or until successful
while (logonCount <= 3) and (not loggedOn):
logonCount += 1
# Confirm the existence of the DB Tables, creating them if needed.
# This method also calls the Username and Password Dialog if needed.
# NOTE: The Menu Window must be created first to server as a parent for the Username and Password Dialog
# called up by DBInterface.
if DBInterface.establish_db_exists():
if DEBUG:
print "Creating Data Window",
# Create the Data Window
# Data Window creation causes Username and Password Dialog to be displayed,
# so it should be created before the Video Window
self.dataWindow = DataWindow.DataWindow(TransanaGlobal.menuWindow)
if DEBUG:
print self.dataWindow.GetSize()
print "Creating Video Window",
# Create the Video Window
self.videoWindow = VideoWindow.VideoWindow(TransanaGlobal.menuWindow)
# Create the Transcript Window. If on the Mac, include the Close button.
if DEBUG:
print self.videoWindow.GetSize()
print "Creating Transcript Window",
self.transcriptWindow = TranscriptionUI.TranscriptionUI(TransanaGlobal.menuWindow, includeClose = ('wxMac' in wx.PlatformInfo))
if DEBUG:
print self.transcriptWindow.dlg.GetSize()
print "Creating Visualization Window",
# Create the Visualization Window
self.visualizationWindow = VisualizationWindow.VisualizationWindow(TransanaGlobal.menuWindow)
if DEBUG:
print self.visualizationWindow.GetSize()
print "Creating Control Object"
# Create the Control Object and register all objects to be controlled with it
self.ControlObject = ControlObject()
self.ControlObject.Register(Menu = TransanaGlobal.menuWindow,
Video = self.videoWindow,
Transcript = self.transcriptWindow,
Data = self.dataWindow,
Visualization = self.visualizationWindow)
# Set the active transcript
self.ControlObject.activeTranscript = 0
# Register the ControlObject with all other objects to be controlled
TransanaGlobal.menuWindow.Register(ControlObject=self.ControlObject)
self.dataWindow.Register(ControlObject=self.ControlObject)
self.videoWindow.Register(ControlObject=self.ControlObject)
self.transcriptWindow.Register(ControlObject=self.ControlObject)
self.visualizationWindow.Register(ControlObject=self.ControlObject)
# Set the Application Top Window to the Menu Window (wxPython)
self.SetTopWindow(TransanaGlobal.menuWindow)
TransanaGlobal.resizingAll = True
if DEBUG:
print
print "Before Showing Windows:"
print " menu:\t\t", TransanaGlobal.menuWindow.GetRect()
print " visual:\t", self.visualizationWindow.GetRect()
print " video:\t", self.videoWindow.GetRect()
print " trans:\t", self.transcriptWindow.dlg.GetRect()
print " data:\t\t", self.dataWindow.GetRect()
print
print 'Heights:', self.transcriptWindow.dlg.GetRect()[1] + self.transcriptWindow.dlg.GetRect()[3], self.dataWindow.GetRect()[1] + self.dataWindow.GetRect()[3]
print
if self.transcriptWindow.dlg.GetRect()[1] + self.transcriptWindow.dlg.GetRect()[3] > self.dataWindow.GetRect()[1] + self.dataWindow.GetRect()[3]:
self.dataWindow.SetRect((self.dataWindow.GetRect()[0],
self.dataWindow.GetRect()[1],
self.dataWindow.GetRect()[2],
self.dataWindow.GetRect()[3] + \
(self.transcriptWindow.dlg.GetRect()[1] + self.transcriptWindow.dlg.GetRect()[3] - (self.dataWindow.GetRect()[1] + self.dataWindow.GetRect()[3]))))
print "DataWindow Height Adjusted!"
print " data:\t\t", self.dataWindow.GetRect()
print
# Show all Windows.
TransanaGlobal.menuWindow.Show(True)
if DEBUG:
print "Showing Windows:"
print " menu:", TransanaGlobal.menuWindow.GetRect()
self.visualizationWindow.Show()
if DEBUG:
print " visualization:", self.visualizationWindow.GetRect()
self.videoWindow.Show()
if DEBUG:
print " video:", self.videoWindow.GetRect(), self.transcriptWindow.dlg.GetRect()
self.transcriptWindow.Show()
if DEBUG:
print " transcript:", self.transcriptWindow.dlg.GetRect(), self.dataWindow.GetRect()
self.dataWindow.Show()
if DEBUG:
print " data:", self.dataWindow.GetRect(), self.visualizationWindow.GetRect()
# Get the size and position of the Visualization Window
(x, y, w, h) = self.visualizationWindow.GetRect()
if DEBUG:
print
print "Call 3", 'Visualization', w + x
# Adjust the positions of all other windows to match the Visualization Window's initial position
self.ControlObject.UpdateWindowPositions('Visualization', w + x, YUpper = h + y)
TransanaGlobal.resizingAll = False
loggedOn = True
# If logon fails, inform user and offer to try again twice.
elif logonCount <= 3:
# Check to see if we have an SSL failure caused by insufficient data
if (not TransanaConstants.singleUserVersion) and TransanaGlobal.configData.ssl and \
(TransanaGlobal.configData.sslClientCert == '' or TransanaGlobal.configData.sslClientKey == ''):
# If so, inform the user
prompt = _("The information on the SSL tab is required to establish an SSL connection to the database.\nWould you like to try again?")
# Otherwise ...
else:
# ... give a generic message about logon failure.
prompt = _('Transana was unable to connect to the database.\nWould you like to try again?')
dlg = Dialogs.QuestionDialog(TransanaGlobal.menuWindow, prompt, _('Transana Database Connection'))
# If the user does not want to try again, set the counter to 4, which will cause the program to exit
if dlg.LocalShowModal() == wx.ID_NO:
logonCount = 4
# Clean up the Dialog Box
dlg.Destroy()
# If we successfully logged in ...
if loggedOn:
# ... save the configuration data that got us in
TransanaGlobal.configData.SaveConfiguration()
# if we're running the multi-user version of Transana and successfully connected to a database ...
if not TransanaConstants.singleUserVersion and loggedOn:
if DEBUG:
print "Need to connect to MessageServer"
# ... connect to the Message Server Here
TransanaGlobal.socketConnection = ChatWindow.ConnectToMessageServer()
# If the connections fails ...
if TransanaGlobal.socketConnection == None:
# ... signal that Transana should NOT start up!
loggedOn = False
else:
# If Transana MU sits idle too long (30 - 60 minutes), people would sometimes get a
# "Connection to Database Lost" error message even though MySQL was set to maintain the
# connection for 8 hours. To try to address this, we will set up a Timer that will run
# a simple query every 10 minutes to maintain the connection to the database.
# Create the Connection Timer
TransanaGlobal.connectionTimer = wx.Timer(self)
# Bind the timer to its event
self.Bind(wx.EVT_TIMER, self.OnTimer)
# Tell the timer to fire every 10 minutes.
# NOTE: If changing this value, it also needs to be changed in the ControlObjectClass.GetNewDatabase() method.
TransanaGlobal.connectionTimer.Start(600000)
if DEBUG:
print "MessageServer connected!"
# Check if the Database and Message Server are both using SSL and select the appropriate graphic
self.dataWindow.UpdateSSLStatus(TransanaGlobal.configData.ssl and TransanaGlobal.chatIsSSL)
# if this is the first time this user profile has used Transana ...
if firstStartup and loggedOn:
# ... create a prompt about looking at the Tutorial
prompt = _('If this is your first time using Transana, the Transana Tutorial can help you learn how to use the program.')
prompt += '\n\n' + _('Would you like to see the Transana Tutorial now?')
# Display the Tutorial prompt in a Yes / No dialog
tmpDlg = Dialogs.QuestionDialog(TransanaGlobal.menuWindow, prompt)
# If the user says Yes ...
if tmpDlg.LocalShowModal() == wx.ID_YES:
# ... start the Tutorial
self.ControlObject.Help('Welcome to the Transana Tutorial')
if DEBUG:
print
print "Final Windows:"
print " menu:\t\t", TransanaGlobal.menuWindow.GetRect()
print " visual:\t", self.visualizationWindow.GetRect()
print " video:\t", self.videoWindow.GetRect()
print " trans:\t", self.transcriptWindow.dlg.GetRect()
print " data:\t\t", self.dataWindow.GetRect()
print
else:
loggedOn = False
dlg = Dialogs.QuestionDialog(TransanaGlobal.menuWindow, msg, _('Transana Database Connection'))
if dlg.LocalShowModal() == wx.ID_YES:
TransanaGlobal.configData.databaseDir = os.path.join(TransanaGlobal.configData.GetDefaultProfilePath(), 'databases')
TransanaGlobal.configData.SaveConfiguration()
# Clean up the Dialog Box
dlg.Destroy()
return loggedOn
def OnTimer(self, event):
""" To prevent a "Lost Database" message, we periocially run a very simple query to maintain our
connection to the database. """
# Get the database connection
db = DBInterface.get_db()
if db != None:
# Get a DB Cursor
dbCursor = db.cursor()
# This is the simplest query I can think of
query = "SHOW TABLES like 'Series%'"
# Execute the query
dbCursor.execute(query)
def transana_excepthook(extype, value, trace):
"""Custom global exception handler for Transana. This is called when
an unhandled exception occurs, or other errors that are otherwise not
explicitly caught."""
# First, do the regular behavior so we get traceback info in the
# error log
# if not(hasattr(sys, "frozen")):
print
print "Transana Error: ", time.asctime()
print extype
print value
import traceback
traceback.print_tb(trace, file=sys.stdout)
sys.__excepthook__(extype, value, trace)
# Now accomodate for the GUI
msg = _("An unhandled %s exception occured") % extype
try:
msg = msg + ": " + str(value)
except exceptions.AttributeError, e:
# Exception doesn't support 'to string' via .args attribute
msg = msg + "."
dlg = Dialogs.ErrorDialog(None, msg)
dlg.ShowModal()
dlg.Destroy()
if __name__ == "__main__":
# Main Application definition and execution call (wxPython)
app = Transana(0) # redirect=False
# Run the application main loop
app.MainLoop()