Continuing to give things meaningful names

diff --git a/data/gonvert.glade b/data/gonvert.glade
index d435973..45deaa6 100644 (file)
--- a/data/gonvert.glade
+++ b/data/gonvert.glade
@@ -22,7 +22,7 @@
   <signal name="size_allocate" handler="on_app1_size_allocate" last_modification_time="Sat, 03 Jul 2004 00:43:38 GMT"/>
 
   <child>
   <signal name="size_allocate" handler="on_app1_size_allocate" last_modification_time="Sat, 03 Jul 2004 00:43:38 GMT"/>
 
   <child>

-    <widget class="GtkVBox" id="vbox2">
+    <widget class="GtkVBox" id="mainLayout">

       <property name="visible">True</property>
       <property name="homogeneous">False</property>
       <property name="spacing">0</property>
       <property name="visible">True</property>
       <property name="homogeneous">False</property>
       <property name="spacing">0</property>

@@ -136,7 +136,7 @@
          <property name="position">0</property>
 
          <child>
          <property name="position">0</property>
 
          <child>

-           <widget class="GtkScrolledWindow" id="scrolledwindow4">
+           <widget class="GtkScrolledWindow" id="categoryScrolledWindow">

              <property name="width_request">260</property>
              <property name="visible">True</property>
              <property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
              <property name="width_request">260</property>
              <property name="visible">True</property>
              <property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>

@@ -167,13 +167,13 @@
          </child>
 
          <child>
          </child>
 
          <child>

-           <widget class="GtkVBox" id="vbox1">
+           <widget class="GtkVBox" id="unitConversionLayout">

              <property name="visible">True</property>
              <property name="homogeneous">False</property>
              <property name="spacing">0</property>
 
              <child>
              <property name="visible">True</property>
              <property name="homogeneous">False</property>
              <property name="spacing">0</property>
 
              <child>

-               <widget class="GtkHBox" id="hbox1">
+               <widget class="GtkHBox" id="selectedUnitLayout">

                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>
                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>

@@ -250,13 +250,13 @@
              </child>
 
              <child>
              </child>
 
              <child>

-               <widget class="GtkHBox" id="hbox2">
+               <widget class="GtkHBox" id="previousSelectedUnitLayout">

                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>
 
                  <child>
                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>
 
                  <child>

-                   <widget class="GtkEntry" id="entry3">
+                   <widget class="GtkEntry" id="previousUnitName">

                      <property name="visible">True</property>
                      <property name="editable">False</property>
                      <property name="visibility">True</property>
                      <property name="visible">True</property>
                      <property name="editable">False</property>
                      <property name="visibility">True</property>

@@ -274,7 +274,7 @@
                  </child>
 
                  <child>
                  </child>
 
                  <child>

-                   <widget class="GtkEntry" id="entry4">
+                   <widget class="GtkEntry" id="previousUnitValue">

                      <property name="visible">True</property>
                      <property name="can_focus">True</property>
                      <property name="editable">True</property>
                      <property name="visible">True</property>
                      <property name="can_focus">True</property>
                      <property name="editable">True</property>

@@ -284,7 +284,7 @@
                      <property name="has_frame">True</property>
                      <property name="invisible_char">*</property>
                      <property name="activates_default">False</property>
                      <property name="has_frame">True</property>
                      <property name="invisible_char">*</property>
                      <property name="activates_default">False</property>

-                     <signal name="changed" handler="on_entry4_changed"/>
+                     <signal name="changed" handler="on_previousUnitValue_changed"/>

                    </widget>
                    <packing>
                      <property name="padding">0</property>
                    </widget>
                    <packing>
                      <property name="padding">0</property>

@@ -294,7 +294,7 @@
                  </child>
 
                  <child>
                  </child>
 
                  <child>

-                   <widget class="GtkLabel" id="label2">
+                   <widget class="GtkLabel" id="previousUnitSymbol">

                      <property name="width_request">60</property>
                      <property name="visible">True</property>
                      <property name="label" translatable="yes"></property>
                      <property name="width_request">60</property>
                      <property name="visible">True</property>
                      <property name="label" translatable="yes"></property>

@@ -340,7 +340,7 @@
                      <property name="window_placement">GTK_CORNER_TOP_LEFT</property>
 
                      <child>
                      <property name="window_placement">GTK_CORNER_TOP_LEFT</property>
 
                      <child>

-                       <widget class="GtkTreeView" id="clist1">
+                       <widget class="GtkTreeView" id="unitsView">

                          <property name="visible">True</property>
                          <property name="can_focus">True</property>
                          <property name="headers_visible">True</property>
                          <property name="visible">True</property>
                          <property name="can_focus">True</property>
                          <property name="headers_visible">True</property>

@@ -350,8 +350,8 @@
                          <property name="fixed_height_mode">False</property>
                          <property name="hover_selection">False</property>
                          <property name="hover_expand">False</property>
                          <property name="fixed_height_mode">False</property>
                          <property name="hover_selection">False</property>
                          <property name="hover_expand">False</property>

-                         <signal name="button_release_event" handler="on_clist1_button_released" last_modification_time="Thu, 24 Jun 2004 01:11:55 GMT"/>
-                         <signal name="cursor_changed" handler="on_clist1_cursor_changed" last_modification_time="Thu, 24 Jun 2004 01:11:42 GMT"/>
+                         <signal name="button_release_event" handler="on_unitsView_button_released" last_modification_time="Thu, 24 Jun 2004 01:11:55 GMT"/>
+                         <signal name="cursor_changed" handler="on_unitsView_cursor_changed" last_modification_time="Thu, 24 Jun 2004 01:11:42 GMT"/>

                        </widget>
                      </child>
                    </widget>
                        </widget>
                      </child>
                    </widget>

@@ -370,7 +370,7 @@
                      <property name="window_placement">GTK_CORNER_TOP_LEFT</property>
 
                      <child>
                      <property name="window_placement">GTK_CORNER_TOP_LEFT</property>
 
                      <child>

-                       <widget class="GtkTextView" id="text1">
+                       <widget class="GtkTextView" id="unitDescription">

                          <property name="visible">True</property>
                          <property name="can_focus">True</property>
                          <property name="editable">False</property>
                          <property name="visible">True</property>
                          <property name="can_focus">True</property>
                          <property name="editable">False</property>

@@ -403,7 +403,7 @@
              </child>
 
              <child>
              </child>
 
              <child>

-               <widget class="GtkHBox" id="hbox3">
+               <widget class="GtkHBox" id="searchLayout">

                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>
                  <property name="visible">True</property>
                  <property name="homogeneous">False</property>
                  <property name="spacing">0</property>

diff --git a/src/gonvert_glade.py b/src/gonvert_glade.py
index 6ee8608..85136e5 100755 (executable)
--- a/src/gonvert_glade.py
+++ b/src/gonvert_glade.py
@@ -150,7 +150,7 @@ def find_units(a):
                                #check if next find is in a new category (prevent category changes when unnecessary
                                if evil_globals.selected_category!=evil_globals.find_result[evil_globals.find_count][0]:
                                        cat_clist.set_cursor(evil_globals.find_result[0][2],col,False)
                                #check if next find is in a new category (prevent category changes when unnecessary
                                if evil_globals.selected_category!=evil_globals.find_result[evil_globals.find_count][0]:
                                        cat_clist.set_cursor(evil_globals.find_result[0][2],col,False)

-                                       clist1.set_cursor(evil_globals.find_result[0][3],column1,True)
+                                       unitsView.set_cursor(evil_globals.find_result[0][3],column1,True)

                                        if len(evil_globals.find_result)>1:
                                                find_label.set_text(('Press Find for next unit. '+ str(len(evil_globals.find_result))+' result(s).'))
                                        else:
                                        if len(evil_globals.find_result)>1:
                                                find_label.set_text(('Press Find for next unit. '+ str(len(evil_globals.find_result))+' result(s).'))
                                        else:

@@ -161,13 +161,13 @@ def find_units(a):
                        #select first result
                        evil_globals.find_count=0
                        cat_clist.set_cursor(evil_globals.find_result[evil_globals.find_count][2],col,False)
                        #select first result
                        evil_globals.find_count=0
                        cat_clist.set_cursor(evil_globals.find_result[evil_globals.find_count][2],col,False)

-                       clist1.set_cursor(evil_globals.find_result[evil_globals.find_count][3],column1,True)
+                       unitsView.set_cursor(evil_globals.find_result[evil_globals.find_count][3],column1,True)

                else: #must be next-find
                        evil_globals.find_count=evil_globals.find_count+1
                        #check if next find is in a new category (prevent category changes when unnecessary
                        if evil_globals.selected_category!=evil_globals.find_result[evil_globals.find_count][0]:
                                cat_clist.set_cursor(evil_globals.find_result[evil_globals.find_count][2],col,False)
                else: #must be next-find
                        evil_globals.find_count=evil_globals.find_count+1
                        #check if next find is in a new category (prevent category changes when unnecessary
                        if evil_globals.selected_category!=evil_globals.find_result[evil_globals.find_count][0]:
                                cat_clist.set_cursor(evil_globals.find_result[evil_globals.find_count][2],col,False)

-                       clist1.set_cursor(evil_globals.find_result[evil_globals.find_count][3],column1,True)
+                       unitsView.set_cursor(evil_globals.find_result[evil_globals.find_count][3],column1,True)

 
 
 def click_column(col):
 
 
 def click_column(col):

@@ -260,14 +260,14 @@ def click_column(col):
 
                #Clear out the previous list of units
                unit_model = gtk.ListStore(gobject.TYPE_STRING,gobject.TYPE_STRING,gobject.TYPE_STRING)
 
                #Clear out the previous list of units
                unit_model = gtk.ListStore(gobject.TYPE_STRING,gobject.TYPE_STRING,gobject.TYPE_STRING)

-               clist1.set_model(unit_model)
+               unitsView.set_model(unit_model)

 
                #colourize each row differently for easier reading
 
                #colourize each row differently for easier reading

-               clist1.set_property( 'rules_hint',1)
+               unitsView.set_property( 'rules_hint',1)

 
                #Clear out the description
                text_model = gtk.TextBuffer(None)
 
                #Clear out the description
                text_model = gtk.TextBuffer(None)

-               text1.set_buffer(text_model)
+               unitDescription.set_buffer(text_model)

 
                if selected_column==0:
                        for unit,value,units in sorted_list:
 
                if selected_column==0:
                        for unit,value,units in sorted_list:

@@ -290,14 +290,14 @@ def click_category(row):
 
        #Clear out the previous list of units
        unit_model = gtk.ListStore(gobject.TYPE_STRING,gobject.TYPE_STRING,gobject.TYPE_STRING)
 
        #Clear out the previous list of units
        unit_model = gtk.ListStore(gobject.TYPE_STRING,gobject.TYPE_STRING,gobject.TYPE_STRING)

-       clist1.set_model(unit_model)
+       unitsView.set_model(unit_model)

 
        #Colourize each row alternately for easier reading
 
        #Colourize each row alternately for easier reading

-       clist1.set_property( 'rules_hint',1)
+       unitsView.set_property( 'rules_hint',1)

 
        #Clear out the description
        text_model = gtk.TextBuffer(None)
 
        #Clear out the description
        text_model = gtk.TextBuffer(None)

-       text1.set_buffer(text_model)
+       unitDescription.set_buffer(text_model)

 
        #Determine the contents of the selected category row
        selected,iter= row.get_selection().get_selected()
 
        #Determine the contents of the selected category row
        selected,iter= row.get_selection().get_selected()

@@ -323,10 +323,10 @@ def click_category(row):
 
        unitName.set_text('')
        unitValue.set_text('')
 
        unitName.set_text('')
        unitValue.set_text('')

-       entry3.set_text('')
-       entry4.set_text('')
+       previousUnitName.set_text('')
+       previousUnitValue.set_text('')

        unitSymbol.set_text('')
        unitSymbol.set_text('')

-       label2.set_text('')
+       previousUnitSymbol.set_text('')

 
        restore_units()
 
 
        restore_units()
 

@@ -350,14 +350,14 @@ def restore_units():
                                unit_no=0
                                for unit in units:
                                        if unit==evil_globals.selected_units[evil_globals.selected_category][1]:
                                unit_no=0
                                for unit in units:
                                        if unit==evil_globals.selected_units[evil_globals.selected_category][1]:

-                                               clist1.set_cursor(unit_no,column1,True)
+                                               unitsView.set_cursor(unit_no,column1,True)

                                        unit_no=unit_no+1
 
                        #Restore newest selection second.
                        unit_no=0
                        for unit in units:
                                if unit==evil_globals.selected_units[evil_globals.selected_category][0]:
                                        unit_no=unit_no+1
 
                        #Restore newest selection second.
                        unit_no=0
                        for unit in units:
                                if unit==evil_globals.selected_units[evil_globals.selected_category][0]:

-                                       clist1.set_cursor(unit_no,column1,True)
+                                       unitsView.set_cursor(unit_no,column1,True)

                                unit_no=unit_no+1
 
        # select the text so user can start typing right away
                                unit_no=unit_no+1
 
        # select the text so user can start typing right away

@@ -373,7 +373,7 @@ def click_unit(row):
        evil_globals.calcsuppress = 1 #suppress calculations
 
        #Determine the contents of the selected row.
        evil_globals.calcsuppress = 1 #suppress calculations
 
        #Determine the contents of the selected row.

-       selected,iter= clist1.get_selection().get_selected()
+       selected,iter= unitsView.get_selection().get_selected()

 
        selected_unit=selected.get_value(iter,0)
 
 
        selected_unit=selected.get_value(iter,0)
 

@@ -381,18 +381,18 @@ def click_unit(row):
 
        #Clear out the description
        text_model = gtk.TextBuffer(None)
 
        #Clear out the description
        text_model = gtk.TextBuffer(None)

-       text1.set_buffer(text_model)
+       unitDescription.set_buffer(text_model)

 
        enditer = text_model.get_end_iter()
        text_model.insert(enditer,unit_spec[2])
 
        if unitName.get_text() != selected_unit:
 
        enditer = text_model.get_end_iter()
        text_model.insert(enditer,unit_spec[2])
 
        if unitName.get_text() != selected_unit:

-               entry3.set_text(unitName.get_text())
-               entry4.set_text(unitValue.get_text())
+               previousUnitName.set_text(unitName.get_text())
+               previousUnitValue.set_text(unitValue.get_text())

                if unitSymbol.get() == None:
                if unitSymbol.get() == None:

-                       label2.set_text('')
+                       previousUnitSymbol.set_text('')

                else:
                else:

-                       label2.set_text(unitSymbol.get())
+                       previousUnitSymbol.set_text(unitSymbol.get())

        unitName.set_text(selected_unit)
 
        unitValue.set_text(selected.get_value(iter,1))
        unitName.set_text(selected_unit)
 
        unitValue.set_text(selected.get_value(iter,1))

@@ -496,10 +496,10 @@ class Ccalculate(object):
                                iter=unit_model.iter_next(iter)
 
                        # if the second row has a unit then update its value
                                iter=unit_model.iter_next(iter)
 
                        # if the second row has a unit then update its value

-                       if entry3.get_text() != '':
+                       if previousUnitName.get_text() != '':

                                evil_globals.calcsuppress=1
                                evil_globals.calcsuppress=1

-                               func,arg = unit_dic[entry3.get_text()][0]
-                               entry4.set_text(str(apply(func.from_base,(base,arg,))))
+                               func,arg = unit_dic[previousUnitName.get_text()][0]
+                               previousUnitValue.set_text(str(apply(func.from_base,(base,arg,))))

                                evil_globals.calcsuppress=0
 
        def bottom(self,a):
                                evil_globals.calcsuppress=0
 
        def bottom(self,a):

@@ -508,18 +508,18 @@ class Ccalculate(object):
                        return
                # determine if value to be calculated is empty
                if evil_globals.selected_category == "Computer Numbers":
                        return
                # determine if value to be calculated is empty
                if evil_globals.selected_category == "Computer Numbers":

-                       if entry4.get_text() =='':
+                       if previousUnitValue.get_text() =='':

                                value = '0'
                        else:
                                value = '0'
                        else:

-                               value = entry4.get_text()
+                               value = previousUnitValue.get_text()

                else:
                else:

-                       if entry4.get_text() =='':
+                       if previousUnitValue.get_text() =='':

                                value = 0.0
                        else:
                                value = 0.0
                        else:

-                               value = float(entry4.get_text())
+                               value = float(previousUnitValue.get_text())

 
 

-               if entry3.get_text() != '':
-                       func,arg = unit_dic[entry3.get_text()][0] #retrieve the conversion function and value from the selected unit
+               if previousUnitName.get_text() != '':
+                       func,arg = unit_dic[previousUnitName.get_text()][0] #retrieve the conversion function and value from the selected unit

                        base = apply(func.to_base,(value,arg,)) #determine the base unit value
 
                        keys = unit_dic.keys()
                        base = apply(func.to_base,(value,arg,)) #determine the base unit value
 
                        keys = unit_dic.keys()

@@ -548,24 +548,22 @@ class Ccalculate(object):
                                evil_globals.calcsuppress=0
 
 
                                evil_globals.calcsuppress=0
 
 

-# vbox2 is mainLayout
-# scrolledwindow4 is categoryScrolledWindow

 # cat_clist is categoryView
 # cat_clist is categoryView

-# vbox1 is unitConversionLayout
-#      hbox1 is selectedUnitLayouta
-#              unitName is the unit name
-#              unitValue is the value
-#              unitSymbol is the unit
-#      hbox2 is previousSelectedUnitLayouta
-#              entry3 is the unit name
-#              entry4 is the value
-#              label2 is the unit
-#      vpand1 is unitsAndDescriptionPane
-#              scrolledWindow1 is unitListScrolledWindow
-#                      clist1 is unitsView
-#              scrolledWindow2 is unitDescriptionScrolledWindow
-#                      text1 is unitDescription
-#      hbox3 is the search box
+# unitConversionLayout
+#      selectedUnitLayouta
+#              unitName
+#              unitValue
+#              unitSymbol
+#      previousSelectedUnitLayout
+#              previousUnitName
+#              previousUnitValue
+#              previousUnitSymbol
+#      unitsAndDescriptionPane
+#              unitListScrolledWindow
+#                      unitsView
+#              unitDescriptionScrolledWindow
+#                      unitDescription
+#      searchLayout is the search box

 def main():
        global mainWindow
        global cat_clist
 def main():
        global mainWindow
        global cat_clist

@@ -573,17 +571,17 @@ def main():
        global unitValue
        global unitName
        global unitSymbol
        global unitValue
        global unitName
        global unitSymbol

-       global clist1
+       global unitsView

        global calculate
        global shortlistcheck
        global about_box
        global calculate
        global shortlistcheck
        global about_box

-       global text1
+       global unitDescription

        global column1
        global column2
        global column3
        global column1
        global column2
        global column3

-       global entry3
-       global entry4
-       global label2
+       global previousUnitName
+       global previousUnitValue
+       global previousUnitSymbol

        global find_label
        global find_entry
        global col
        global find_label
        global find_entry
        global col

@@ -646,9 +644,9 @@ def main():
                "on_exitMenuItem_activate": exitprogram,
                "on_mainWindow_destroy": exitprogram,
                "on_cat_clist_select_row": click_category,
                "on_exitMenuItem_activate": exitprogram,
                "on_mainWindow_destroy": exitprogram,
                "on_cat_clist_select_row": click_category,

-               "on_clist1_click_column": click_column,
+               "on_unitsView_click_column": click_column,

                "on_unitValue_changed": calculate.top,
                "on_unitValue_changed": calculate.top,

-               "on_entry4_changed": calculate.bottom,
+               "on_previousUnitValue_changed": calculate.bottom,

                "on_write_units1_activate": write_units,
                "on_find_button_clicked": find_units,
                "on_find_entry_key_press_event": find_key_press,
                "on_write_units1_activate": write_units,
                "on_find_button_clicked": find_units,
                "on_find_entry_key_press_event": find_key_press,

@@ -657,8 +655,8 @@ def main():
                "on_about_close_clicked": about_hide,
                "on_messagebox_ok_clicked": messagebox_ok_clicked,
                "on_clear_selections1_activate": clear_selections,
                "on_about_close_clicked": about_hide,
                "on_messagebox_ok_clicked": messagebox_ok_clicked,
                "on_clear_selections1_activate": clear_selections,

-               "on_clist1_cursor_changed": click_unit,
-               "on_clist1_button_released": button_released,
+               "on_unitsView_cursor_changed": click_unit,
+               "on_unitsView_button_released": button_released,

                "on_mainWindow_size_allocate": app_size_changed,
                "on_shortlistcheck_toggled": shortlist_changed,
                "on_edit_shortlist1_activate": edit_shortlist,
                "on_mainWindow_size_allocate": app_size_changed,
                "on_shortlistcheck_toggled": shortlist_changed,
                "on_edit_shortlist1_activate": edit_shortlist,

@@ -689,13 +687,13 @@ def main():
 
        cat_clist = widgets.get_widget('cat_clist' )
 
 
        cat_clist = widgets.get_widget('cat_clist' )
 

-       clist1 = widgets.get_widget('clist1')
-       clist1_selection=clist1.get_selection()
+       unitsView = widgets.get_widget('unitsView')
+       unitsView_selection=unitsView.get_selection()

 
        unitName = widgets.get_widget('unitName')
        unitValue = widgets.get_widget('unitValue')
 
        unitName = widgets.get_widget('unitName')
        unitValue = widgets.get_widget('unitValue')

-       entry3 = widgets.get_widget('entry3')
-       entry4 = widgets.get_widget('entry4')
+       previousUnitName = widgets.get_widget('previousUnitName')
+       previousUnitValue = widgets.get_widget('previousUnitValue')

        about_box = widgets.get_widget('about_box')
        messagebox = widgets.get_widget('msgbox')
        messageboxtext = widgets.get_widget('msgboxtext')
        about_box = widgets.get_widget('about_box')
        messagebox = widgets.get_widget('msgbox')
        messageboxtext = widgets.get_widget('msgboxtext')

@@ -706,9 +704,9 @@ def main():
        versionlabel.set_text(constants.__version__)
 
        unitSymbol =widgets.get_widget('unitSymbol')
        versionlabel.set_text(constants.__version__)
 
        unitSymbol =widgets.get_widget('unitSymbol')

-       label2 =widgets.get_widget('label2')
+       previousUnitSymbol =widgets.get_widget('previousUnitSymbol')

 
 

-       text1 = widgets.get_widget('text1' )
+       unitDescription = widgets.get_widget('unitDescription' )

 
        find_entry = widgets.get_widget('find_entry')
        find_label = widgets.get_widget('find_label')
 
        find_entry = widgets.get_widget('find_entry')
        find_label = widgets.get_widget('find_label')

@@ -720,21 +718,21 @@ def main():
        column1.add_attribute( renderer, 'text', 0 )
        column1.set_clickable(True)
        column1.connect("clicked",click_column)
        column1.add_attribute( renderer, 'text', 0 )
        column1.set_clickable(True)
        column1.connect("clicked",click_column)

-       clist1.append_column( column1 )
+       unitsView.append_column( column1 )

 
        column2 = gtk.TreeViewColumn( _('Value'), renderer )
        column2.set_property( 'resizable', 1 )
        column2.add_attribute( renderer, 'text', 1 )
        column2.set_clickable(True)
        column2.connect("clicked",click_column)
 
        column2 = gtk.TreeViewColumn( _('Value'), renderer )
        column2.set_property( 'resizable', 1 )
        column2.add_attribute( renderer, 'text', 1 )
        column2.set_clickable(True)
        column2.connect("clicked",click_column)

-       clist1.append_column( column2 )
+       unitsView.append_column( column2 )

 
        column3 = gtk.TreeViewColumn( _('Units'), renderer )
        column3.set_property( 'resizable', 1 )
        column3.add_attribute( renderer, 'text', 2 )
        column3.set_clickable(True)
        column3.connect("clicked",click_column)
 
        column3 = gtk.TreeViewColumn( _('Units'), renderer )
        column3.set_property( 'resizable', 1 )
        column3.add_attribute( renderer, 'text', 2 )
        column3.set_clickable(True)
        column3.connect("clicked",click_column)

-       clist1.append_column( column3 )
+       unitsView.append_column( column3 )

 
        #Insert a column into the category list even though the heading will not be seen
        renderer = gtk.CellRendererText()
 
        #Insert a column into the category list even though the heading will not be seen
        renderer = gtk.CellRendererText()