Imported Upstream version 0.4.0~alpha1upstream/0.4.0_alpha1

1 files changed, 1583 insertions, 0 deletions

diff --git a/rapid/preferencesdialog.py b/rapid/preferencesdialog.py
new file mode 100644
index 0000000..5ad257d
--- /dev/null
+++ b/rapid/preferencesdialog.py
@@ -0,0 +1,1583 @@
+#!/usr/bin/python
+# -*- coding: latin1 -*-
+
+### Copyright (C) 2007 - 2011 Damon Lynch <damonlynch@gmail.com>
+
+### This program is free software; you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2 of the License, or
+### (at your option) any later version.
+
+### 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
+
+
+import datetime
+
+import gtk
+
+import multiprocessing
+import logging
+logger = multiprocessing.get_logger()
+
+import ValidatedEntry
+import misc
+
+import config
+import paths
+import higdefaults as hd
+import metadataphoto
+import metadatavideo
+import tableplusminus as tpm
+
+import utilities
+
+import generatename as gn
+from generatenameconfig import *
+import problemnotification as pn
+
+from prefsrapid import format_pref_list_for_pretty_print
+
+from gettext import gettext as _
+
+class PrefError(Exception):
+    """ base class """
+    def unpackList(self, l):
+        """
+        Make the preferences presentable to the user
+        """
+        
+        s = ''
+        for i in l:
+            if i <> ORDER_KEY:
+                s += "'" + i + "', "
+        return s[:-2]
+
+    def __str__(self): 
+        return self.msg
+        
+class PrefKeyError(PrefError):
+    def __init__(self, error):
+        value = error[0]
+        expectedValues = self.unpackList(error[1])
+        self.msg = "Preference key '%(key)s' is invalid.\nExpected one of %(value)s" % {
+                            'key': value, 'value': expectedValues}
+
+
+class PrefValueInvalidError(PrefKeyError):
+    def __init__(self, error):
+        value = error[0]
+        self.msg = "Preference value '%(value)s' is invalid" % {'value': value}
+        
+class PrefLengthError(PrefError):
+    def __init__(self, error):
+        self.msg = "These preferences are not well formed:" + "\n %s" % self.unpackList(error)
+        
+class PrefValueKeyComboError(PrefError):
+    def __init__(self, error):    
+        self.msg = error
+
+
+def check_pref_valid(pref_defn, prefs, modulo=3):
+    """
+    Checks to see if prefs are valid according to definition.
+
+    prefs is a list of preferences.
+    pref_defn is a Dict specifying what is valid.
+    modulo is how many list elements are equivalent to one line of preferences.
+
+    Returns True if prefs match with pref_defn,
+    else raises appropriate error.
+    """
+
+    if (len(prefs) % modulo <> 0) or not prefs:
+        raise PrefLengthError(prefs)
+    else:
+        for i in range(0,  len(prefs),  modulo):
+            _check_pref_valid(pref_defn, prefs[i:i+modulo])
+               
+    return True
+
+def _check_pref_valid(pref_defn, prefs):
+
+    key = prefs[0]
+    value = prefs[1]
+
+
+    if pref_defn.has_key(key):
+        
+        next_pref_defn = pref_defn[key]
+        
+        if value == None:
+            # value should never be None, at any time
+            raise PrefValueInvalidError((None, next_pref_defn))
+
+        if next_pref_defn and not value:
+            raise gn.PrefValueInvalidError((value, next_pref_defn))
+                    
+        if type(next_pref_defn) == type({}):
+            return _check_pref_valid(next_pref_defn, prefs[1:])
+        else:
+            if type(next_pref_defn) == type([]):
+                result = value in next_pref_defn
+                if not result:
+                    raise gn.PrefValueInvalidError((value, next_pref_defn))
+                return True
+            elif not next_pref_defn:
+                return True
+            else:
+                result = next_pref_defn == value
+                if not result:
+                    raise gn.PrefKeyValue((value, next_pref_defn))
+                return True
+    else:
+        raise PrefKeyError((key, pref_defn[ORDER_KEY]))
+
+
+def filter_subfolder_prefs(pref_list):
+    """
+    Filters out extraneous preference choices
+    """
+    prefs_changed = False
+    continue_check = True
+    while continue_check and pref_list:
+        continue_check = False
+        if pref_list[0] == SEPARATOR:
+            # subfolder preferences should not start with a /
+            pref_list = pref_list[3:]
+            prefs_changed = True
+            continue_check = True
+        elif pref_list[-3] == SEPARATOR:
+            # subfolder preferences should not end with a /
+            pref_list = pref_list[:-3]
+            continue_check = True
+            prefs_changed = True
+        else:
+            for i in range(0, len(pref_list) - 3, 3):
+                if pref_list[i] == SEPARATOR and pref_list[i+3] == SEPARATOR:
+                    # subfolder preferences should not contain two /s side by side
+                    continue_check = True
+                    prefs_changed = True
+                    # note we are messing with the contents of the pref list,
+                    # must exit loop and try again
+                    pref_list = pref_list[:i] + pref_list[i+3:]
+                    break
+                    
+    return (prefs_changed,  pref_list)
+
+class Comboi18n(gtk.ComboBox):
+    """ very simple i18n version of the venerable combo box 
+    with one column displayed to the user.
+    
+    This combo box has two columns:
+    1. the first contains the actual value and is invisible
+    2. the second contains the translation of the first column, and this is what
+        the users sees
+    """
+    def __init__(self):
+        liststore = gtk.ListStore(str, str)
+        gtk.ComboBox.__init__(self,  liststore)
+        cell = gtk.CellRendererText()
+        self.pack_start(cell,  True)
+        self.add_attribute(cell, 'text', 1)
+        
+    def append_text(self,  text):
+        model = self.get_model()
+        model.append((text, _(text)))
+        
+    def get_active_text(self):
+        model = self.get_model()
+        active = self.get_active()
+        if active < 0:
+            return None
+        return model[active][0] 
+        
+class PreferenceWidgets:
+    
+    def __init__(self, default_row, default_prefs, pref_defn_L0, pref_list):
+        self.default_row = default_row
+        self.default_prefs = default_prefs
+        self.pref_defn_L0 = pref_defn_L0
+        self.pref_list = pref_list
+        
+    def _create_combo(self, choices):
+        combobox = Comboi18n()
+        for text in choices:
+            combobox.append_text(text)
+        return combobox
+        
+    def get_default_row(self):
+        """ 
+        returns a list of default widgets
+        """
+        return self.get_widgets_based_on_user_selection(self.default_row)
+
+    def _get_pref_widgets(self, pref_definition, prefs, widgets):
+        key = prefs[0]
+        value = prefs[1]
+        
+        # supply a default value if the user has not yet chosen a value!
+        if not key:
+            key = pref_definition[ORDER_KEY][0]
+            
+        if not key in pref_definition:
+            raise gn.PrefKeyError((key, pref_definition.keys()))
+
+
+        list0 = pref_definition[ORDER_KEY]
+
+        # the first widget will always be a combo box
+        widget0 = self._create_combo(list0)
+        widget0.set_active(list0.index(key))
+        
+        widgets.append(widget0)
+        
+        if key == TEXT:
+            widget1 = gtk.Entry()
+            widget1.set_text(value)
+            
+            widgets.append(widget1)
+            widgets.append(None)
+            return
+        elif key in [SEPARATOR, JOB_CODE]:
+            widgets.append(None)
+            widgets.append(None)
+            return
+        else:
+            next_pref_definition = pref_definition[key]
+            if type(next_pref_definition) == type({}):
+                return self._get_pref_widgets(next_pref_definition, 
+                                            prefs[1:], 
+                                            widgets)
+            else:
+                if type(next_pref_definition) == type([]):
+                    widget1 = self._create_combo(next_pref_definition)
+                    if not value:
+                        value = next_pref_definition[0]
+                    try:
+                        widget1.set_active(next_pref_definition.index(value))
+                    except:
+                        raise gn.PrefValueInvalidError((value, next_pref_definition))
+                    
+                    widgets.append(widget1)
+                else:
+                    widgets.append(None)
+                    
+    def _get_values_from_list(self):
+        for i in range(0, len(self.pref_list), 3):
+            yield (self.pref_list[i], self.pref_list[i+1], self.pref_list[i+2])                    
+    
+    def get_widgets_based_on_prefs(self):
+        """ 
+        Yields a list of widgets and their callbacks based on the users preferences.
+       
+        This list is equivalent to one row of preferences when presented to the 
+        user in the Plus Minus Table.
+        """
+        
+        for L0, L1, L2 in self._get_values_from_list():
+            prefs = [L0, L1, L2]
+            widgets = []
+            self._get_pref_widgets(self.pref_defn_L0, prefs, widgets)
+            yield widgets
+        
+
+    def get_widgets_based_on_user_selection(self, selection):
+        """
+        Returns a list of widgets and their callbacks based on what the user has selected.
+        
+        Selection is the values the user has chosen thus far in comboboxes.
+        It determines the contents of the widgets returned.
+        It should be a list of three values, with None for values not chosen.
+        For values which are None, the first value in the preferences
+        definition is chosen.
+        
+        """
+        widgets = []
+            
+        self._get_pref_widgets(self.pref_defn_L0, selection, widgets)
+        return widgets
+        
+    def check_prefs_for_validity(self):
+        """
+        Checks preferences validity
+        """
+        
+        #~ print logger.debug(dir(self))
+        return check_pref_valid(self.pref_defn_L0, self.pref_list)        
+
+class PhotoNamePrefs(PreferenceWidgets):
+    def __init__(self, pref_list):
+        PreferenceWidgets.__init__(self, 
+            default_row = [FILENAME, NAME_EXTENSION, ORIGINAL_CASE],
+            default_prefs = [FILENAME, NAME_EXTENSION, ORIGINAL_CASE],
+            pref_defn_L0 = DICT_IMAGE_RENAME_L0,
+            pref_list = pref_list)
+
+class VideoNamePrefs(PreferenceWidgets):
+    def __init__(self, pref_list):
+        PreferenceWidgets.__init__(self,
+            default_row = [FILENAME, NAME_EXTENSION, ORIGINAL_CASE],
+            default_prefs = [FILENAME, NAME_EXTENSION, ORIGINAL_CASE],
+            pref_defn_L0 = DICT_VIDEO_RENAME_L0,
+            pref_list = pref_list)
+                
+
+class PhotoSubfolderPrefs(PreferenceWidgets):
+    def __init__(self, pref_list):
+        
+        PreferenceWidgets.__init__(self,
+            default_row = [DATE_TIME, IMAGE_DATE, LIST_DATE_TIME_L2[0]],
+            default_prefs = DEFAULT_SUBFOLDER_PREFS,
+            pref_defn_L0 = DICT_SUBFOLDER_L0,
+            pref_list = pref_list)
+
+    def filter_preferences(self):
+        filtered,  pref_list = filter_subfolder_prefs(self.pref_list)
+        if filtered:
+            self.pref_list = pref_list
+            
+    def check_prefs_for_validity(self):
+        """
+        Checks subfolder preferences validity above and beyond image name checks.
+        
+        See parent method for full description.
+        
+        Subfolders have additional requirments to that of file names.
+        """
+        v = PreferenceWidgets.check_prefs_for_validity(self)
+        if v:
+            # peform additional checks:
+            # 1. do not start with a separator
+            # 2. do not end with a separator
+            # 3. do not have two separators in a row
+            # these three rules will ensure something else other than a 
+            # separator is specified
+            L1s = []
+            for i in range(0, len(self.pref_list), 3):
+                L1s.append(self.pref_list[i])
+
+            if L1s[0] == SEPARATOR:
+                raise PrefValueKeyComboError(_("Subfolder preferences should not start with a %s") % os.sep)
+            elif L1s[-1] == SEPARATOR:
+                raise PrefValueKeyComboError(_("Subfolder preferences should not end with a %s") % os.sep)
+            else:
+                for i in range(len(L1s) - 1):
+                    if L1s[i] == SEPARATOR and L1s[i+1] == SEPARATOR:
+                        raise PrefValueKeyComboError(_("Subfolder preferences should not contain two %s one after the other") % os.sep)
+        return v
+
+class VideoSubfolderPrefs(PhotoSubfolderPrefs):
+    def __init__(self, pref_list):
+        PreferenceWidgets.__init__(self, 
+            default_row = [DATE_TIME, VIDEO_DATE, LIST_DATE_TIME_L2[0]],
+            default_prefs = DEFAULT_VIDEO_SUBFOLDER_PREFS,
+            pref_defn_L0 = DICT_VIDEO_SUBFOLDER_L0,
+            pref_list = pref_list)
+
+class RemoveAllJobCodeDialog(gtk.Dialog):
+    def __init__(self, parent_window, post_choice_callback):
+        gtk.Dialog.__init__(self, _('Remove all Job Codes?'), None,
+                   gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
+                   (gtk.STOCK_NO, gtk.RESPONSE_CANCEL, 
+                   gtk.STOCK_YES, gtk.RESPONSE_OK))
+                        
+        self.post_choice_callback = post_choice_callback        
+        self.set_icon_from_file(paths.share_dir('glade3/rapid-photo-downloader.svg'))
+        
+        prompt_hbox = gtk.HBox()
+        
+        icontheme = gtk.icon_theme_get_default()
+        icon = icontheme.load_icon('gtk-dialog-question', 36, gtk.ICON_LOOKUP_USE_BUILTIN)        
+        if icon:
+            image = gtk.Image()
+            image.set_from_pixbuf(icon)
+            prompt_hbox.pack_start(image, False, False, padding = 6)
+            
+        prompt_label = gtk.Label(_('Should all Job Codes be removed?'))
+        prompt_label.set_line_wrap(True)
+        prompt_hbox.pack_start(prompt_label, False, False, padding=6)
+                    
+        self.vbox.pack_start(prompt_hbox, padding=6)
+
+        self.set_border_width(6)
+        self.set_has_separator(False)   
+        
+        self.set_default_response(gtk.RESPONSE_OK)
+      
+       
+        self.set_transient_for(parent_window)
+        self.show_all()
+
+        
+        self.connect('response', self.on_response)
+        
+    def on_response(self,  device_dialog, response):
+        user_selected = response == gtk.RESPONSE_OK
+        self.post_choice_callback(self, user_selected)
+
+class PhotoRenameTable(tpm.TablePlusMinus):
+
+    def __init__(self, preferencesdialog, adjust_scroll_window):
+  
+        tpm.TablePlusMinus.__init__(self, 1, 3)
+        self.preferencesdialog = preferencesdialog
+        self.adjust_scroll_window = adjust_scroll_window
+        if not hasattr(self, "error_title"):
+            self.error_title = _("Error in Photo Rename preferences")
+                    
+        self.table_type = self.error_title[len("Error in "):]
+        self.i = 0
+
+        if adjust_scroll_window:
+            self.scroll_bar = self.adjust_scroll_window.get_vscrollbar()
+            #this next line does not work on early versions of pygtk :(
+            self.scroll_bar.connect('visibility-notify-event', self.scrollbar_visibility_change)
+            self.connect("size-request", self.size_adjustment)
+            self.connect("add",  self.size_adjustment)
+            self.connect("remove",  self.size_adjustment)
+
+            # get scrollbar thickness from parent app scrollbar - very hackish, but what to do??
+            self.bump = 16# self.preferencesdialog.parentApp.image_scrolledwindow.get_hscrollbar().allocation.height
+            self.have_vertical_scrollbar = False
+
+
+        self.get_preferencesdialog_prefs()
+        self.get_prefs_factory()
+        #~ self.prefs_factory.setDownloadStartTime(datetime.datetime.now())
+        
+        try:
+            self.prefs_factory.check_prefs_for_validity()
+            
+        except (PrefValueInvalidError, PrefLengthError, 
+                PrefValueKeyComboError,  PrefKeyError),  e:
+
+            logger.error(self.error_title)
+            logger.error("Sorry, these preferences contain an error:")
+            logger.error(format_pref_list_for_pretty_print(self.prefs_factory.pref_list))
+            
+            # the preferences were invalid
+            # reset them to their default
+
+            self.pref_list = self.prefs_factory.default_prefs
+            self.get_prefs_factory()
+            self.update_parentapp_prefs()
+
+            msg = "%s.\n" % e
+            msg += "Resetting to default values."
+            logger.error(msg)
+            
+            
+            misc.run_dialog(self.error_title, msg, 
+                preferencesdialog,
+                gtk.MESSAGE_ERROR)
+        
+        for row in self.prefs_factory.get_widgets_based_on_prefs():
+            self.append(row)
+                      
+    def update_preferences(self):
+        pref_list = []
+        for row in self.pm_rows:                
+            for col in range(self.pm_no_columns):
+                widget = row[col]
+                if widget:
+                    name = widget.get_name()
+                    if name == 'GtkComboBox':
+                        value = widget.get_active_text()
+                    elif name == 'GtkEntry':
+                        value = widget.get_text()
+                    else:
+                        logger.critical("Program error: Unknown preference widget!")
+                        value = ''
+                else:
+                    value = ''
+                pref_list.append(value)
+
+        self.pref_list = pref_list
+        self.update_parentapp_prefs()
+        self.prefs_factory.pref_list = pref_list
+        self.update_example()
+            
+    
+    def scrollbar_visibility_change(self, widget, event):
+        if event.state == gtk.gdk.VISIBILITY_UNOBSCURED:
+            self.have_vertical_scrollbar = True
+            self.adjust_scroll_window.set_size_request(self.adjust_scroll_window.allocation.width + self.bump, -1)
+
+            
+    def size_adjustment(self, widget, arg2):
+        """
+        Adjust scrolledwindow width in preferences dialog to reflect width of image rename table
+        
+        The algorithm is complicated by the need to take into account the presence of a vertical scrollbar,
+        which might be added as the user adds more rows
+        
+        The pygtk code behaves inconsistently depending on the pygtk version
+        """
+        
+        if self.adjust_scroll_window:
+            self.have_vertical_scrollbar = self.scroll_bar.allocation.width > 1 or self.have_vertical_scrollbar
+            if not self.have_vertical_scrollbar:
+                if self.allocation.width > self.adjust_scroll_window.allocation.width:
+                    self.adjust_scroll_window.set_size_request(self.allocation.width, -1)
+            else:
+                if self.allocation.width > self.adjust_scroll_window.allocation.width - self.bump:
+                    self.adjust_scroll_window.set_size_request(self.allocation.width + self.bump, -1)
+                    self.bump = 0
+       
+    def get_preferencesdialog_prefs(self):
+        self.pref_list = self.preferencesdialog.prefs.image_rename
+        
+    
+    def get_prefs_factory(self):
+        self.prefs_factory = PhotoNamePrefs(self.pref_list)
+        
+    def update_parentapp_prefs(self):
+        self.preferencesdialog.prefs.image_rename = self.pref_list
+        
+    def update_example_job_code(self):
+        job_code = self.preferencesdialog.prefs.get_sample_job_code()
+        if not job_code:
+            job_code = _('Job code')
+        #~ self.prefs_factory.setJobCode(job_code)
+        
+    def update_example(self):
+        self.preferencesdialog.update_image_rename_example()
+    
+    def get_default_row(self):
+        return self.prefs_factory.get_default_row()
+        
+    def on_combobox_changed(self, widget, row_position):
+        
+        for col in range(self.pm_no_columns):
+            if self.pm_rows[row_position][col] == widget:
+                break
+        selection = []
+        for i in range(col + 1):
+            # ensure it is a combo box we are getting the value from
+            w = self.pm_rows[row_position][i]
+            name = w.get_name()
+            if name == 'GtkComboBox':
+                selection.append(w.get_active_text())
+            else:
+                selection.append(w.get_text())
+                
+        for i in range(col + 1, self.pm_no_columns):
+            selection.append('')
+            
+        if col <> (self.pm_no_columns - 1):
+            widgets = self.prefs_factory.get_widgets_based_on_user_selection(selection)
+            
+            for i in range(col + 1, self.pm_no_columns):
+                old_widget = self.pm_rows[row_position][i]
+                if old_widget:
+                    self.remove(old_widget)
+                    if old_widget in self.pm_callbacks:
+                        del self.pm_callbacks[old_widget]
+                new_widget = widgets[i]
+                self.pm_rows[row_position][i] = new_widget
+                if new_widget:
+                    self._create_callback(new_widget, row_position)
+                    self.attach(new_widget, i, i+1, row_position, row_position + 1)
+                    new_widget.show()
+        self.update_preferences()
+
+        
+    def on_entry_changed(self, widget, row_position):
+        self.update_preferences()
+
+    def on_row_added(self, row_position):
+        """
+        Update preferences, as a row has been added
+        """
+        self.update_preferences()
+        
+        # if this was the last row or 2nd to last row, and another has just been added, move vertical scrollbar down
+        if row_position in range(self.pm_no_rows - 3,  self.pm_no_rows - 2):
+            adjustment = self.preferencesdialog.rename_scrolledwindow.get_vadjustment()
+            adjustment.set_value(adjustment.upper)
+        
+
+    def on_row_deleted(self, row_position):
+        """
+        Update preferences, as a row has been deleted
+        """
+        self.update_preferences()        
+
+class VideoRenameTable(PhotoRenameTable):
+    def __init__(self, preferencesdialog, adjust_scroll_window):    
+        self.error_title = _("Error in Video Rename preferences")
+        PhotoRenameTable.__init__(self, preferencesdialog, adjust_scroll_window)
+
+    def get_preferencesdialog_prefs(self):
+        self.pref_list = self.preferencesdialog.prefs.video_rename
+    
+    def get_prefs_factory(self):
+        self.prefs_factory = VideoNamePrefs(self.pref_list)
+        
+    def update_parentapp_prefs(self):
+        self.preferencesdialog.prefs.video_rename = self.pref_list
+
+    def update_example(self):
+        self.preferencesdialog.update_video_rename_example()
+
+class SubfolderTable(PhotoRenameTable):
+    """
+    Table to display photo download subfolder preferences as part of preferences
+    dialog window.
+    """
+    def __init__(self, preferencesdialog, adjust_scroll_window):    
+        self.error_title = _("Error in Photo Download Subfolders preferences")
+        PhotoRenameTable.__init__(self, preferencesdialog, adjust_scroll_window)
+
+    def get_preferencesdialog_prefs(self):
+        self.pref_list = self.preferencesdialog.prefs.subfolder
+    
+    def get_prefs_factory(self):
+        self.prefs_factory = PhotoSubfolderPrefs(self.pref_list)
+        
+    def update_parentapp_prefs(self):
+        self.preferencesdialog.prefs.subfolder = self.pref_list
+
+    def update_example(self):
+        self.preferencesdialog.update_photo_download_folder_example()
+        
+class VideoSubfolderTable(PhotoRenameTable):
+    def __init__(self, preferencesdialog, adjust_scroll_window): 
+        self.error_title = _("Error in Video Download Subfolders preferences")
+        PhotoRenameTable.__init__(self, preferencesdialog, adjust_scroll_window)
+
+    def get_preferencesdialog_prefs(self):
+        self.pref_list = self.preferencesdialog.prefs.video_subfolder
+    
+    def get_prefs_factory(self):
+        self.prefs_factory = VideoSubfolderPrefs(self.pref_list)
+        
+    def update_parentapp_prefs(self):
+        self.preferencesdialog.prefs.video_subfolder = self.pref_list
+
+    def update_example(self):
+        self.preferencesdialog.update_video_download_folder_example()        
+
+class RemoveAllJobCodeDialog(gtk.Dialog):
+    def __init__(self, parent_window, post_choice_callback):
+        gtk.Dialog.__init__(self, _('Remove all Job Codes?'), None,
+                   gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
+                   (gtk.STOCK_NO, gtk.RESPONSE_CANCEL, 
+                   gtk.STOCK_YES, gtk.RESPONSE_OK))
+                        
+        self.post_choice_callback = post_choice_callback        
+        self.set_icon_from_file(paths.share_dir('glade3/rapid-photo-downloader.svg'))
+        
+        prompt_hbox = gtk.HBox()
+        
+        icontheme = gtk.icon_theme_get_default()
+        icon = icontheme.load_icon('gtk-dialog-question', 36, gtk.ICON_LOOKUP_USE_BUILTIN)        
+        if icon:
+            image = gtk.Image()
+            image.set_from_pixbuf(icon)
+            prompt_hbox.pack_start(image, False, False, padding = 6)
+            
+        prompt_label = gtk.Label(_('Should all Job Codes be removed?'))
+        prompt_label.set_line_wrap(True)
+        prompt_hbox.pack_start(prompt_label, False, False, padding=6)
+                    
+        self.vbox.pack_start(prompt_hbox, padding=6)
+
+        self.set_border_width(6)
+        self.set_has_separator(False)   
+        
+        self.set_default_response(gtk.RESPONSE_OK)
+      
+        self.set_transient_for(parent_window)
+        self.show_all()
+
+        self.connect('response', self.on_response)
+        
+    def on_response(self, device_dialog, response):
+        user_selected = response == gtk.RESPONSE_OK
+        self.post_choice_callback(self, user_selected)
+
+class JobCodeDialog(gtk.Dialog):
+    """ Dialog prompting for a job code"""
+    
+    def __init__(self, parent_window, job_codes,  default_job_code, post_job_code_entry_callback, entry_only):
+        # Translators: for an explanation of what this means, see http://damonlynch.net/rapid/documentation/index.html#jobcode
+        gtk.Dialog.__init__(self,  _('Enter a Job Code'), None,
+                   gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
+                   (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, 
+                   gtk.STOCK_OK, gtk.RESPONSE_OK))
+                        
+        
+        self.set_icon_from_file(paths.share_dir('glade3/rapid-photo-downloader.svg'))
+        self.post_job_code_entry_callback = post_job_code_entry_callback
+        
+        self.combobox = gtk.combo_box_entry_new_text()
+        for text in job_codes:
+            self.combobox.append_text(text)
+            
+        self.job_code_hbox = gtk.HBox(homogeneous = False)
+        
+        if len(job_codes) and not entry_only:
+            # Translators: for an explanation of what this means, see http://damonlynch.net/rapid/documentation/index.html#jobcode
+            task_label = gtk.Label(_('Enter a new Job Code, or select a previous one'))
+        else:
+            # Translators: for an explanation of what this means, see http://damonlynch.net/rapid/documentation/index.html#jobcode
+            task_label = gtk.Label(_('Enter a new Job Code'))            
+        task_label.set_line_wrap(True)
+        task_hbox = gtk.HBox()
+        task_hbox.pack_start(task_label, False, False, padding=6)
+
+        label = gtk.Label(_('Job Code:'))
+        self.job_code_hbox.pack_start(label, False, False, padding=6)
+        self.job_code_hbox.pack_start(self.combobox, True, True, padding=6)
+        
+        self.set_border_width(6)
+        self.set_has_separator(False)
+
+        # make entry box have entry completion
+        self.entry = self.combobox.child
+        
+        completion = gtk.EntryCompletion()
+        completion.set_match_func(self.match_func)
+        completion.connect("match-selected",
+                             self.on_completion_match)
+        completion.set_model(self.combobox.get_model())
+        completion.set_text_column(0)
+        self.entry.set_completion(completion)
+        
+        # when user hits enter, close the dialog window
+        self.set_default_response(gtk.RESPONSE_OK)
+        self.entry.set_activates_default(True)
+
+        if default_job_code:
+            self.entry.set_text(default_job_code)
+        
+        self.vbox.pack_start(task_hbox, False, False, padding = 6)
+        self.vbox.pack_start(self.job_code_hbox, False, False, padding=12)
+        
+        self.set_transient_for(parent_window)
+        self.show_all()
+        self.connect('response', self.on_job_code_resp)
+            
+    def match_func(self, completion, key, iter):
+         model = completion.get_model()
+         return model[iter][0].lower().startswith(self.entry.get_text().lower())
+         
+    def on_completion_match(self, completion, model, iter):
+         self.entry.set_text(model[iter][0])
+         self.entry.set_position(-1)
+
+    def get_job_code(self):
+        return self.combobox.child.get_text()
+        
+    def on_job_code_resp(self,  jc_dialog, response):
+        user_chose_code = False
+        if response == gtk.RESPONSE_OK:
+            user_chose_code = True
+            logger.debug("Job Code entered")
+        else:
+            logger.debug("Job Code not entered")
+        self.post_job_code_entry_callback(self, user_chose_code, self.get_job_code())
+        
+
+class PreferencesDialog(gtk.Window):
+    """
+    Dialog window to show Rapid Photo Downloader preferences.
+    
+    Is tightly integrated into main Rapid Photo Downloader window, i.e.
+    directly access members in class RapidApp.
+    """
+    
+    def __init__(self, rapidapp):
+
+        self.builder = gtk.Builder()
+        self.builder.add_from_file(paths.share_dir("glade3/prefs.ui"))
+        self.builder.connect_signals(self)
+        
+        self.dialog = self.preferencesdialog
+        self.widget = self.dialog
+        self.dialog.set_transient_for(rapidapp.rapidapp)
+        self.prefs = rapidapp.prefs
+        
+        rapidapp.preferences_dialog_displayed = True
+        
+        self.rapidapp = rapidapp
+
+        self._setup_tab_selector()
+        
+        self._setup_control_spacing()
+        
+        if metadatavideo.DOWNLOAD_VIDEO:
+            self.file_types = _("photos and videos")
+        else:
+            self.file_types = _("photos")
+
+        # get example photo and video data
+        #~ try:
+        #~ w = workers.firstWorkerReadyToDownload()
+        #~ mediaFile = w.firstImage() 
+        #~ self.sample_image_name = mediaFile.name
+        #~ # assume the metadata is already read
+        #~ self.sample_image = mediaFile.metadata
+        #~ except:
+        self.sample_image = metadataphoto.DummyMetaData()
+        self.sample_image_name = 'IMG_0524.CR2'
+        
+        if not metadatavideo.DOWNLOAD_VIDEO:
+            self.sample_video = None
+            self.sample_video_name = ''
+        else:
+            #~ try:
+            #~ mediaFile = w.firstVideo()
+            #~ self.sample_video_name = mediaFile.name
+            #~ self.sample_video = mediaFile.metadata
+            #~ self.videoFallBackDate = mediaFile.modificationTime
+            #~ except:
+            self.sample_video = metadatavideo.DummyMetaData()
+            self.sample_video_name = 'MVI_1379.MOV'
+            #~ self.videoFallBackDate = datetime.datetime.now()
+            
+        
+        # setup tabs
+        self._setup_photo_download_folder_tab()
+        self._setup_image_rename_tab()
+        self._setup_video_download_folder_tab()
+        self._setup_video_rename_tab()                
+        self._setup_rename_options_tab()
+        self._setup_job_code_tab()
+        self._setup_device_tab()
+        self._setup_backup_tab()
+        self._setup_miscellaneous_tab()
+        self._setup_error_tab()
+        
+        if not metadatavideo.DOWNLOAD_VIDEO:
+            self.disable_video_controls()
+
+        self.dialog.realize()
+        
+        #set the width of the left column for selecting values
+        #note: this must be called after self.dialog.realize(), or else the width calculation will fail
+        width_of_widest_sel_row = self.treeview.get_background_area(1, self.treeview_column)[2]
+        self.scrolled_window.set_size_request(width_of_widest_sel_row + 2, -1)
+
+        #set the minimum width of the scolled window holding the photo rename table
+        if self.rename_scrolledwindow.get_vscrollbar():
+            extra = self.rename_scrolledwindow.get_vscrollbar().allocation.width + 10
+        else:
+            extra = 10
+        self.rename_scrolledwindow.set_size_request(self.rename_table.allocation.width + extra,   -1)
+
+        self.dialog.show()
+
+    def __getattr__(self, key):
+        """Allow builder widgets to be accessed as self.widgetname
+        """
+        widget = self.builder.get_object(key)
+        if widget: # cache lookups
+            setattr(self, key, widget)
+            return widget
+        raise AttributeError(key)
+        
+    def on_preferencesdialog_destroy(self,  widget):
+        """ Delete variables from memory that cause a file descriptor to be created on a mounted media"""
+        del self.sample_image, self.rename_table.prefs_factory, self.subfolder_table.prefs_factory
+        
+    def _setup_tab_selector(self):
+        self.notebook.set_show_tabs(0)
+        self.model = gtk.ListStore(type(""))
+        column = gtk.TreeViewColumn()
+        rentext = gtk.CellRendererText()
+        column.pack_start(rentext, expand=0)
+        column.set_attributes(rentext, text=0)
+        self.treeview_column = column
+        self.treeview.append_column(column)
+        self.treeview.props.model = self.model
+        for c in self.notebook.get_children():
+            label = self.notebook.get_tab_label(c).get_text()
+            if not label.startswith("_"):
+                self.model.append( (label,) )
+        
+
+        # select the first value in the list store
+        self.treeview.set_cursor(0,column)
+    
+    def on_download_folder_filechooser_button_selection_changed(self, widget):
+        self.prefs.download_folder = widget.get_current_folder()
+        self.update_photo_download_folder_example()
+        
+    def on_video_download_folder_filechooser_button_selection_changed(self, widget):
+        self.prefs.video_download_folder = widget.get_current_folder()
+        self.update_video_download_folder_example()
+    
+    def on_backup_folder_filechooser_button_selection_changed(self, widget):
+        self.prefs.backup_location = widget.get_current_folder()
+        self.update_backup_example()
+        
+    def on_device_location_filechooser_button_selection_changed(self, widget):
+        self.prefs.device_location = widget.get_current_folder()
+        
+    def _setup_control_spacing(self):
+        """
+        set spacing of some but not all controls
+        """
+        
+        self._setup_table_spacing(self.download_folder_table) 
+        self._setup_table_spacing(self.video_download_folder_table) 
+        self.download_folder_table.set_row_spacing(2, 
+                                hd.VERTICAL_CONTROL_SPACE)
+        self.video_download_folder_table.set_row_spacing(2, 
+                                hd.VERTICAL_CONTROL_SPACE)
+        self._setup_table_spacing(self.rename_example_table)
+        self._setup_table_spacing(self.video_rename_example_table)
+        self.devices_table.set_col_spacing(0, hd.NESTED_CONTROLS_SPACE)
+        self.automation_table.set_col_spacing(0, hd.NESTED_CONTROLS_SPACE)
+      
+        self._setup_table_spacing(self.backup_table)
+        self.backup_table.set_col_spacing(1, hd.NESTED_CONTROLS_SPACE)
+        self.backup_table.set_col_spacing(2, hd.CONTROL_LABEL_SPACE)
+        self._setup_table_spacing(self.compatibility_table)
+        self.compatibility_table.set_row_spacing(0, 
+                                            hd.VERTICAL_CONTROL_LABEL_SPACE)                                                    
+        self._setup_table_spacing(self.error_table)
+    
+    
+    def _setup_table_spacing(self, table):
+        table.set_col_spacing(0, hd.NESTED_CONTROLS_SPACE)
+        table.set_col_spacing(1, hd.CONTROL_LABEL_SPACE)
+
+    def _setup_subfolder_table(self):
+        self.subfolder_table = SubfolderTable(self, None)
+        self.subfolder_vbox.pack_start(self.subfolder_table)
+        self.subfolder_table.show_all()
+        
+    def _setup_video_subfolder_table(self):
+        self.video_subfolder_table = VideoSubfolderTable(self, None)
+        self.video_subfolder_vbox.pack_start(self.video_subfolder_table)
+        self.video_subfolder_table.show_all()
+
+    def _setup_photo_download_folder_tab(self):
+        self.download_folder_filechooser_button = gtk.FileChooserButton(
+                            _("Select a folder to download photos to"))
+        self.download_folder_filechooser_button.set_current_folder(
+                            self.prefs.download_folder)
+        self.download_folder_filechooser_button.set_action(
+                            gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
+        self.download_folder_filechooser_button.connect("selection-changed", 
+                    self.on_download_folder_filechooser_button_selection_changed)
+                            
+        self.download_folder_table.attach(
+                            self.download_folder_filechooser_button, 
+                            2, 3, 2, 3, yoptions = gtk.SHRINK)
+        self.download_folder_filechooser_button.show()        
+
+        self._setup_subfolder_table()
+        self.update_photo_download_folder_example()
+        
+    def _setup_video_download_folder_tab(self):
+        self.video_download_folder_filechooser_button = gtk.FileChooserButton(
+                            _("Select a folder to download videos to"))
+        self.video_download_folder_filechooser_button.set_current_folder(
+                            self.prefs.video_download_folder)
+        self.video_download_folder_filechooser_button.set_action(
+                            gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
+        self.video_download_folder_filechooser_button.connect("selection-changed", 
+                    self.on_video_download_folder_filechooser_button_selection_changed)
+                            
+        self.video_download_folder_table.attach(
+                            self.video_download_folder_filechooser_button, 
+                            2, 3, 2, 3, yoptions = gtk.SHRINK)
+        self.video_download_folder_filechooser_button.show()        
+        self._setup_video_subfolder_table()
+        self.update_video_download_folder_example()        
+    
+    def _setup_image_rename_tab(self):
+
+        self.rename_table = PhotoRenameTable(self, self.rename_scrolledwindow)
+        self.rename_table_vbox.pack_start(self.rename_table)
+        self.rename_table.show_all()
+        self.original_name_label.set_markup("<i>%s</i>" % self.sample_image_name)
+        self.update_image_rename_example()
+        
+    def _setup_video_rename_tab(self):
+
+        self.video_rename_table = VideoRenameTable(self, self.video_rename_scrolledwindow)
+        self.video_rename_table_vbox.pack_start(self.video_rename_table)
+        self.video_rename_table.show_all()
+        self.video_original_name_label.set_markup("<i>%s</i>" % self.sample_video_name)
+        self.update_video_rename_example()
+                
+    def _setup_rename_options_tab(self):
+        
+        # sequence numbers
+        self.downloads_today_entry = ValidatedEntry.ValidatedEntry(ValidatedEntry.bounded(ValidatedEntry.v_int, int, 0))
+        self.stored_number_entry = ValidatedEntry.ValidatedEntry(ValidatedEntry.bounded(ValidatedEntry.v_int, int, 1))
+        self.downloads_today_entry.connect('changed', self.on_downloads_today_entry_changed)
+        self.stored_number_entry.connect('changed', self.on_stored_number_entry_changed)
+        v = self.rapidapp.downloads_today_tracker.get_and_maybe_reset_downloads_today()
+        self.downloads_today_entry.set_text(str(v))
+        # make the displayed value of stored sequence no 1 more than actual value
+        # so as not to confuse the user
+        self.stored_number_entry.set_text(str(self.prefs.stored_sequence_no+1))
+        self.sequence_vbox.pack_start(self.downloads_today_entry, expand=True, fill=True)
+        self.sequence_vbox.pack_start(self.stored_number_entry, expand=False)
+        self.downloads_today_entry.show()
+        self.stored_number_entry.show()
+        hour, minute = self.rapidapp.downloads_today_tracker.get_day_start()
+        self.hour_spinbutton.set_value(float(hour))
+        self.minute_spinbutton.set_value(float(minute))
+
+        self.synchronize_raw_jpg_checkbutton.set_active(
+                            self.prefs.synchronize_raw_jpg)
+        
+        #compatibility
+        self.strip_characters_checkbutton.set_active(
+                            self.prefs.strip_characters)
+        
+    def _setup_job_code_tab(self):
+        self.job_code_liststore = gtk.ListStore(str)
+        column = gtk.TreeViewColumn()
+        rentext = gtk.CellRendererText()
+        rentext.connect('edited', self.on_job_code_edited)
+        rentext .set_property('editable', True)
+
+        column.pack_start(rentext, expand=0)
+        column.set_attributes(rentext, text=0)
+        self.job_code_treeview_column = column
+        self.job_code_treeview.append_column(column)
+        self.job_code_treeview.props.model = self.job_code_liststore
+        for code in self.prefs.job_codes:
+            self.job_code_liststore.append((code, ))
+            
+        # set multiple selections
+        self.job_code_treeview.get_selection().set_mode(gtk.SELECTION_MULTIPLE)
+        
+        self.remove_all_job_code_button.set_image(gtk.image_new_from_stock(
+                                                gtk.STOCK_CLEAR,
+                                                gtk.ICON_SIZE_BUTTON))  
+    def _setup_device_tab(self):
+
+        self.device_location_filechooser_button = gtk.FileChooserButton(
+                            _("Select a folder containing %(file_types)s") % {'file_types':self.file_types})
+        self.device_location_filechooser_button.set_current_folder(
+                            self.prefs.device_location)
+        self.device_location_filechooser_button.set_action(
+                            gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
+                            
+        self.device_location_filechooser_button.connect("selection-changed", 
+                    self.on_device_location_filechooser_button_selection_changed)
+
+        self.devices2_table.attach(self.device_location_filechooser_button,
+                            1, 2, 1, 2, xoptions = gtk.EXPAND|gtk.FILL,  yoptions = gtk.SHRINK)
+        self.device_location_filechooser_button.show()
+        self.autodetect_device_checkbutton.set_active(
+                            self.prefs.device_autodetection)
+        self.autodetect_psd_checkbutton.set_active(
+                            self.prefs.device_autodetection_psd)
+                            
+        self.update_device_controls()
+        
+
+    def _setup_backup_tab(self):
+        self.backup_folder_filechooser_button = gtk.FileChooserButton(
+                            _("Select a folder in which to backup %(file_types)s") % {'file_types':self.file_types})
+        self.backup_folder_filechooser_button.set_current_folder(
+                            self.prefs.backup_location)
+        self.backup_folder_filechooser_button.set_action(
+                            gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
+        self.backup_folder_filechooser_button.connect("selection-changed", 
+                    self.on_backup_folder_filechooser_button_selection_changed)
+        self.backup_table.attach(self.backup_folder_filechooser_button,
+                            3, 4, 8, 9, yoptions = gtk.SHRINK)
+        self.backup_folder_filechooser_button.show()
+        self.backup_identifier_entry.set_text(self.prefs.backup_identifier)
+        self.video_backup_identifier_entry.set_text(self.prefs.video_backup_identifier)
+        
+        #setup controls for manipulating sensitivity
+        self._backup_controls0 = [self.auto_detect_backup_checkbutton]
+        self._backup_controls1 = [self.backup_identifier_explanation_label,
+                                self.backup_identifier_label,
+                                self.backup_identifier_entry,
+                                self.example_backup_path_label,
+                                self.backup_example_label,]
+        self._backup_controls2 = [self.backup_location_label,
+                                self.backup_folder_filechooser_button,
+                                self.backup_location_explanation_label]
+        self._backup_controls = self._backup_controls0 + self._backup_controls1 + \
+                                self._backup_controls2
+                                
+        self._backup_video_controls = [self.video_backup_identifier_label,
+                                self.video_backup_identifier_entry]
+        
+        #assign values to checkbuttons only when other controls
+        #have been setup, because their toggle signal is activated
+        #when a value is assigned
+        
+        self.backup_checkbutton.set_active(self.prefs.backup_images)
+        self.auto_detect_backup_checkbutton.set_active(
+                            self.prefs.backup_device_autodetection)
+        self.update_backup_controls()
+        self.update_backup_example()
+    
+    def _setup_miscellaneous_tab(self):
+        self.auto_startup_checkbutton.set_active(
+                        self.prefs.auto_download_at_startup)
+        self.auto_insertion_checkbutton.set_active(
+                        self.prefs.auto_download_upon_device_insertion)
+        self.auto_unmount_checkbutton.set_active(
+                        self.prefs.auto_unmount)
+        self.auto_exit_checkbutton.set_active(
+                        self.prefs.auto_exit)
+        self.auto_exit_force_checkbutton.set_active(
+                        self.prefs.auto_exit_force)
+        self.auto_delete_checkbutton.set_active(
+                        self.prefs.auto_delete)
+                        
+        self.update_misc_controls()
+
+        
+    def _setup_error_tab(self):
+        if self.prefs.download_conflict_resolution == config.SKIP_DOWNLOAD:
+            self.skip_download_radiobutton.set_active(True)
+        else:
+            self.add_identifier_radiobutton.set_active(True)
+            
+        if self.prefs.backup_duplicate_overwrite:
+            self.backup_duplicate_overwrite_radiobutton.set_active(True)
+        else:
+            self.backup_duplicate_skip_radiobutton.set_active(True)
+
+    
+    def update_example_file_name(self, display_table, rename_table, sample, sampleName, example_label, fallback_date = None):
+        problem = pn.Problem()
+        name = 'file.cr2'
+        #~ if hasattr(self, display_table):
+            #~ rename_table.update_example_job_code()
+            #~ rename_table.prefs_factory.initializeProblem(problem)
+            #~ name = rename_table.prefs_factory.generateNameUsingPreferences(
+                    #~ sample, sampleName,
+                    #~ self.prefs.strip_characters, sequencesPreliminary=False, fallback_date=fallback_date)
+        #~ else:
+            #~ name = ''
+            
+        # since this is markup, escape it
+        text = "<i>%s</i>" % utilities.escape(name)
+        
+        if problem.has_problem():
+            text += "\n"
+            # Translators: please do not modify or leave out html formatting tags like <i> and <b>. These are used to format the text the users sees
+            text += _("<i><b>Warning:</b> There is insufficient metadata to fully generate the name. Please use other renaming options.</i>")
+
+        example_label.set_markup(text)        
+    
+    def update_image_rename_example(self):
+        """ 
+        Displays example image name to the user 
+        """
+        self.update_example_file_name('rename_table', self.rename_table, self.sample_image,  self.sample_image_name, self.new_name_label)
+
+        
+    def update_video_rename_example(self):
+        """
+        Displays example video name to the user
+        """
+        self.update_example_file_name('video_rename_table', self.video_rename_table, self.sample_video,  self.sample_video_name, self.video_new_name_label)
+            
+    def update_download_folder_example(self, display_table, subfolder_table, download_folder, sample, sampleName, example_download_path_label, subfolder_warning_label):
+        """ 
+        Displays example subfolder name(s) to the user 
+        """
+        
+        problem = pn.Problem()
+        #~ if hasattr(self, display_table):
+            #~ subfolder_table.update_example_job_code()
+            #~ subfolder_table.update_example_job_code()
+            #~ subfolder_table.prefs_factory.initializeProblem(problem)
+            #~ path = subfolder_table.prefs_factory.generateNameUsingPreferences(
+                            #~ sample, sampleName,
+                            #~ self.prefs.strip_characters, fallback_date = fallback_date)
+        #~ else:
+            #~ path = ''
+            
+        path = 'sample'
+        
+        text = os.path.join(download_folder, path)
+        # since this is markup, escape it
+        path = utilities.escape(text)
+        if problem.has_problem():
+            warning = _("<i><b>Warning:</b> There is insufficient metadata to fully generate subfolders. Please use other subfolder naming options.</i>" )
+        else:
+            warning = ""
+        # Translators: you should not modify or leave out the %s. This is a code used by the programming language python to insert a value that thes user will see
+        example_download_path_label.set_markup(_("<i>Example: %s</i>") % text)
+        subfolder_warning_label.set_markup(warning)
+        
+    def update_photo_download_folder_example(self):
+        if hasattr(self, 'subfolder_table'):
+            self.update_download_folder_example('subfolder_table', self.subfolder_table, self.prefs.download_folder, self.sample_image, self.sample_image_name, self.example_photo_download_path_label, self.photo_subfolder_warning_label)
+        
+    def update_video_download_folder_example(self):
+        if hasattr(self, 'video_subfolder_table'):
+            self.update_download_folder_example('video_subfolder_table', self.video_subfolder_table, self.prefs.video_download_folder, self.sample_video, self.sample_video_name, self.example_video_download_path_label, self.video_subfolder_warning_label)
+        
+    def on_hour_spinbutton_value_changed(self, spinbutton):
+        hour = spinbutton.get_value_as_int()
+        minute = self.minute_spinbutton.get_value_as_int()
+        self.rapidapp.downloads_today_tracker.set_day_start(hour, minute)
+        self.on_downloads_today_entry_changed(self.downloads_today_entry)
+        
+    def on_minute_spinbutton_value_changed(self, spinbutton):
+        hour = self.hour_spinbutton.get_value_as_int()
+        minute = spinbutton.get_value_as_int()
+        self.rapidapp.downloads_today_tracker.set_day_start(hour, minute)
+        self.on_downloads_today_entry_changed(self.downloads_today_entry)
+
+    def on_downloads_today_entry_changed(self, entry):
+        # do not update value if a download is occurring - it will mess it up!
+        if self.rapidapp.download_is_occurring():
+            logger.info("Downloads today value not updated, as a download is currently occurring")
+        else:            
+            v = entry.get_text()
+            try:
+                v = int(v)
+            except:
+                v = 0
+            if v < 0:
+                v = 0
+            self.rapidapp.downloads_today_tracker.reset_downloads_today(v)
+            self.rapidapp.refresh_downloads_today = True
+            self.update_image_rename_example()
+        
+    def on_stored_number_entry_changed(self, entry):
+        # do not update value if a download is occurring - it will mess it up!        
+        if self.rapidapp.download_is_occurring():
+            logger.info("Stored number value not updated, as a download is currently occurring")
+        else:
+            v = entry.get_text()
+            try:
+                # the displayed value of stored sequence no 1 more than actual value
+                # so as not to confuse the user
+                v = int(v) - 1
+            except:
+                v = 0
+            if v < 0:
+                v = 0
+            self.prefs.stored_sequence_no = v
+            self.update_image_rename_example()
+
+    def _update_subfolder_pref_on_error(self, new_pref_list):
+        self.prefs.subfolder = new_pref_list
+
+    def _update_video_subfolder_pref_on_error(self, new_pref_list):
+        self.prefs.video_subfolder = new_pref_list
+        
+    
+    def check_subfolder_values_valid_on_exit(self, users_pref_list, update_pref_function, filetype, default_pref_list):
+        """
+        Checks that the user has not entered in any inappropriate values
+        
+        If they have, filters out bad values and warns the user 
+        """
+        filtered, pref_list = filter_subfolder_prefs(users_pref_list)
+        if filtered:
+            logger.info("The %(filetype)s subfolder preferences had some unnecessary values removed.", {'filetype': filetype})
+            if pref_list:
+                update_pref_function(pref_list)
+            else:
+                #Preferences list is now empty
+                msg = _("The %(filetype)s subfolder preferences entered are invalid and cannot be used.\nThey will be reset to their default values.") % {'filetype': filetype}
+                sys.stderr.write(msg + "\n")
+                misc.run_dialog(PROGRAM_NAME, msg)
+                update_pref_function(self.prefs.get_default(default_pref_list))
+    
+    def on_preferencesdialog_response(self, dialog, arg):
+        if arg == gtk.RESPONSE_HELP:
+            webbrowser.open("http://www.damonlynch.net/rapid/documentation")
+        else:
+            # arg==gtk.RESPONSE_CLOSE, or the user hit the 'x' to close the window
+            self.prefs.backup_identifier = self.backup_identifier_entry.get_property("text")
+            self.prefs.video_backup_identifier = self.video_backup_identifier_entry.get_property("text")
+            
+            #check subfolder preferences for bad values
+            self.check_subfolder_values_valid_on_exit(self.prefs.subfolder, self._update_subfolder_pref_on_error, _("photo"), "subfolder")
+            self.check_subfolder_values_valid_on_exit(self.prefs.video_subfolder, self._update_video_subfolder_pref_on_error, _("video"), "video_subfolder")
+                    
+            self.dialog.destroy()
+            self.rapidapp.preferences_dialog_displayed = False
+            self.rapidapp.post_preference_change()
+            
+
+
+
+    def on_add_job_code_button_clicked(self,  button):
+        j = JobCodeDialog(parent_window = self.dialog,
+                    job_codes = self.prefs.job_codes,
+                    default_job_code = None, 
+                    post_job_code_entry_callback=self.add_job_code,
+                    entry_only = True)
+
+    def add_job_code(self, dialog, user_chose_code, job_code):
+        dialog.destroy()
+        if user_chose_code:
+            if job_code and job_code not in self.prefs.job_codes:
+                self.job_code_liststore.prepend((job_code,  ))
+                self.update_job_codes()
+                selection = self.job_code_treeview.get_selection()
+                selection.unselect_all()
+                selection.select_path((0, ))
+                #scroll to the top
+                adjustment = self.job_code_scrolledwindow.get_vadjustment()
+                adjustment.set_value(adjustment.lower)
+
+    def on_remove_job_code_button_clicked(self,  button):
+        """ remove selected job codes (can be multiple selection)"""
+        selection = self.job_code_treeview.get_selection()
+        model, selected = selection.get_selected_rows()
+        iters = [model.get_iter(path) for path in selected]
+        # only delete if a jobe code is selected
+        if iters:
+            no = len(iters)
+            path = None
+            for i in range(0, no):
+                iter = iters[i]
+                if i == no - 1:
+                    path = model.get_path(iter) 
+                model.remove(iter)
+            
+            # now that we removed the selection, play nice with 
+            # the user and select the next item
+            selection.select_path(path)
+            
+            #  if there was no selection that meant the user
+            # removed the last entry, so we try to select the 
+            # last item
+            if not selection.path_is_selected(path):
+                 row = path[0]-1
+                 # test case for empty lists
+                 if row >= 0:
+                    selection.select_path((row,))
+
+        self.update_job_codes()
+        self.update_image_rename_example()
+        self.update_video_rename_example()
+        self.update_photo_download_folder_example()
+        self.update_video_download_folder_example()
+        
+    def on_remove_all_job_code_button_clicked(self,  button):
+        j = RemoveAllJobCodeDialog(self.dialog, self.remove_all_job_code)
+        
+    def remove_all_job_code(self, dialog, user_selected):
+        dialog.destroy()
+        if user_selected:
+            self.job_code_liststore.clear()
+            self.update_job_codes()
+            self.update_image_rename_example()
+            self.update_video_rename_example()
+            self.update_photo_download_folder_example()
+            self.update_video_download_folder_example()
+        
+    def on_job_code_edited(self,  widget,  path,  new_text):
+        iter = self.job_code_liststore.get_iter(path)
+        self.job_code_liststore.set_value(iter,  0,  new_text)
+        self.update_job_codes()
+        self.update_image_rename_example()
+        self.update_video_rename_example()
+        self.update_photo_download_folder_example()
+        self.update_video_download_folder_example()
+
+    def update_job_codes(self):
+        """ update preferences with list of job codes"""
+        job_codes = []
+        for row in self.job_code_liststore:
+            job_codes.append(row[0])
+        self.prefs.job_codes = job_codes
+        
+    def on_auto_startup_checkbutton_toggled(self, checkbutton):
+        self.prefs.auto_download_at_startup = checkbutton.get_active()
+        
+    def on_auto_insertion_checkbutton_toggled(self, checkbutton):
+        self.prefs.auto_download_upon_device_insertion = checkbutton.get_active()
+        
+    def on_auto_unmount_checkbutton_toggled(self, checkbutton):
+        self.prefs.auto_unmount = checkbutton.get_active()
+        
+
+    def on_auto_delete_checkbutton_toggled(self, checkbutton):
+        self.prefs.auto_delete = checkbutton.get_active()
+
+    def on_auto_exit_checkbutton_toggled(self, checkbutton):
+        active = checkbutton.get_active()
+        self.prefs.auto_exit = active
+        if not active:
+            self.prefs.auto_exit_force = False
+            self.auto_exit_force_checkbutton.set_active(False)
+        self.update_misc_controls()
+        
+    def on_auto_exit_force_checkbutton_toggled(self, checkbutton):
+        self.prefs.auto_exit_force = checkbutton.get_active()
+    
+    def on_scan_metadata_checkbutton_toggled(self, checkbutton):
+        self.prefs.enable_previews = checkbutton.get_active()
+        
+    def on_autodetect_device_checkbutton_toggled(self, checkbutton):
+        self.prefs.device_autodetection = checkbutton.get_active()
+        self.update_device_controls()
+
+    def on_autodetect_psd_checkbutton_toggled(self,  checkbutton):
+        self.prefs.device_autodetection_psd = checkbutton.get_active()
+        
+    def on_backup_duplicate_overwrite_radiobutton_toggled(self,  widget):
+        self.prefs.backup_duplicate_overwrite = widget.get_active()
+            
+    def on_backup_duplicate_skip_radiobutton_toggled(self,  widget):
+        self.prefs.backup_duplicate_overwrite = not widget.get_active()
+    
+    def on_treeview_cursor_changed(self, tree):
+        path, column = tree.get_cursor()
+        self.notebook.set_current_page(path[0])
+
+    def on_synchronize_raw_jpg_checkbutton_toggled(self, check_button):
+        self.prefs.synchronize_raw_jpg = check_button.get_active()
+        
+    def on_strip_characters_checkbutton_toggled(self, check_button):
+        self.prefs.strip_characters = check_button.get_active()
+        self.update_image_rename_example()
+        self.update_photo_download_folder_example()
+        self.update_video_download_folder_example()
+        
+    def on_add_identifier_radiobutton_toggled(self, widget):
+        if widget.get_active():
+            self.prefs.download_conflict_resolution = config.ADD_UNIQUE_IDENTIFIER
+        else:
+            self.prefs.download_conflict_resolution = config.SKIP_DOWNLOAD
+            
+
+    def update_device_controls(self):
+        """
+        Sets sensitivity of image device controls
+        """
+        controls = [self.device_location_explanation_label,
+                    self.device_location_label,
+                    self.device_location_filechooser_button]
+
+        if self.prefs.device_autodetection:
+            for c in controls:
+                c.set_sensitive(False)
+            self.autodetect_psd_checkbutton.set_sensitive(True)
+            self.autodetect_image_devices_label.set_sensitive(True)
+        else:
+            for c in controls:
+                c.set_sensitive(True)
+            self.autodetect_psd_checkbutton.set_sensitive(False)
+            self.autodetect_image_devices_label.set_sensitive(False)
+    
+    def update_misc_controls(self):
+        """
+        Sets sensitivity of miscillaneous controls
+        """
+        
+        self.auto_exit_force_checkbutton.set_sensitive(self.prefs.auto_exit)
+            
+    
+    def update_backup_controls(self):
+        """
+        Sets sensitivity of backup related widgets
+        """
+        
+        if not self.backup_checkbutton.get_active():
+            for c in self._backup_controls + self._backup_video_controls:
+                c.set_sensitive(False)
+
+        else:
+            for c in self._backup_controls0:
+                c.set_sensitive(True)
+            self.update_backup_controls_auto()
+
+    def update_backup_controls_auto(self):
+        """
+        Sets sensitivity of subset of backup related widgets
+        """
+
+        if self.auto_detect_backup_checkbutton.get_active():
+            for c in self._backup_controls1:
+                c.set_sensitive(True)
+            for c in self._backup_controls2:
+                c.set_sensitive(False)
+            for c in self._backup_video_controls:
+                c.set_sensitive(False)
+            if metadatavideo.DOWNLOAD_VIDEO:
+                for c in self._backup_video_controls:
+                    c.set_sensitive(True)
+        else:
+            for c in self._backup_controls1:
+                c.set_sensitive(False)
+            for c in self._backup_controls2:
+                c.set_sensitive(True)
+            if metadatavideo.DOWNLOAD_VIDEO:
+                for c in self._backup_video_controls:
+                    c.set_sensitive(False)                
+            
+    def disable_video_controls(self):
+        """
+        Disables video preferences if video downloading is disabled
+        (probably because the appropriate libraries to enable
+        video metadata extraction are not installed)
+        """        
+        controls = [self.example_video_filename_label, 
+                    self.original_video_filename_label,
+                    self.new_video_filename_label,
+                    self.video_new_name_label,
+                    self.video_original_name_label,
+                    self.video_rename_scrolledwindow,
+                    self.video_folders_hbox,
+                    self.video_backup_identifier_label,
+                    self.video_backup_identifier_entry
+                    ]
+        for c in controls:
+            c.set_sensitive(False)
+            
+        self.videos_cannot_be_downloaded_label.show()
+        self.folder_videos_cannot_be_downloaded_label.show()
+        self.folder_videos_cannot_be_downloaded_hbox.show()
+    
+    def on_auto_detect_backup_checkbutton_toggled(self, widget):
+        self.prefs.backup_device_autodetection = widget.get_active()
+        self.update_backup_controls_auto()
+        
+    def on_backup_checkbutton_toggled(self, widget):
+        self.prefs.backup_images = self.backup_checkbutton.get_active()
+        self.update_backup_controls()
+
+    def on_backup_identifier_entry_changed(self, widget):
+        self.update_backup_example()
+        #~ self.prefs.
+    
+    def on_video_backup_identifier_entry_changed(self, widget):
+        self.update_backup_example()
+
+    def on_backup_scan_folder_on_entry_changed(self, widget):
+        self.update_backup_example()        
+
+    def update_backup_example(self):
+        # Translators: this value is used as an example device when automatic backup device detection is enabled. You should translate this.
+        drive1 = os.path.join(config.MEDIA_LOCATION, _("externaldrive1"))
+        # Translators: this value is used as an example device when automatic backup device detection is enabled. You should translate this.
+        drive2 = os.path.join(config.MEDIA_LOCATION, _("externaldrive2"))
+
+        path = os.path.join(drive1, self.backup_identifier_entry.get_text())
+        path2 = os.path.join(drive2, self.backup_identifier_entry.get_text())
+        path3 = os.path.join(drive2, self.video_backup_identifier_entry.get_text())
+        path = utilities.escape(path)
+        path2 = utilities.escape(path2)
+        path3 = utilities.escape(path3)
+        if metadatavideo.DOWNLOAD_VIDEO:
+            example = "<i>%s</i>\n<i>%s</i>\n<i>%s</i>" % (path, path2, path3)
+        else:
+            example = "<i>%s</i>\n<i>%s</i>" % (path, path2)
+        self.example_backup_path_label.set_markup(example)