void wxListBoxBase::CalcAndSendEvent()
{
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, GetId() );
+ wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, GetId());
event.SetEventObject( this );
wxArrayInt selections;
- GetSelections( selections );
-
- if ((selections.GetCount() == 0) && (m_oldSelections.GetCount() == 0))
- {
- // nothing changed, just leave
- return;
- }
-
- if (selections.GetCount() == m_oldSelections.GetCount())
+ GetSelections(selections);
+
+ if ( selections.empty() && m_oldSelections.empty() )
+ {
+ // nothing changed, just leave
+ return;
+ }
+
+ const size_t countSel = selections.size(),
+ countSelOld = m_oldSelections.size();
+ if ( countSel == countSelOld )
+ {
+ bool changed = false;
+ for ( size_t idx = 0; idx < countSel; idx++ )
{
- bool changed = false;
- size_t idx;
- for (idx = 0; idx < selections.GetCount(); idx++)
+ if (selections[idx] != m_oldSelections[idx])
{
- if (selections[idx] != m_oldSelections[idx])
- {
- changed = true;
- break;
- }
+ changed = true;
+ break;
}
-
- // nothing changed, just leave
- if (!changed)
- return;
}
- if (selections.GetCount() == 0)
- {
- // indicate that this is a deselection
- event.SetExtraLong( 0 );
- int item = m_oldSelections[0];
- m_oldSelections = selections;
- LBSendEvent( event, this, item );
- return;
- }
-
- int item;
+ // nothing changed, just leave
+ if ( !changed )
+ return;
+ }
+
+ int item = wxNOT_FOUND;
+ if ( selections.empty() )
+ {
+ // indicate that this is a deselection
+ event.SetExtraLong(0);
+ item = m_oldSelections[0];
+ }
+ else // we [still] have some selections
+ {
// Now test if any new item is selected
bool any_new_selected = false;
- size_t idx;
- for (idx = 0; idx < selections.GetCount(); idx++)
+ for ( size_t idx = 0; idx < countSel; idx++ )
{
item = selections[idx];
- if (m_oldSelections.Index(item) == wxNOT_FOUND)
+ if ( m_oldSelections.Index(item) == wxNOT_FOUND )
{
any_new_selected = true;
break;
}
}
-
- if (any_new_selected)
+
+ if ( any_new_selected )
{
// indicate that this is a selection
- event.SetExtraLong( 1 );
- m_oldSelections = selections;
- LBSendEvent( event, this, item );
- return;
+ event.SetExtraLong(1);
}
-
- // Now test if any new item is deselected
- bool any_new_deselected = false;
- for (idx = 0; idx < m_oldSelections.GetCount(); idx++)
+ else // no new items selected
{
- item = m_oldSelections[idx];
- if (selections.Index(item) == wxNOT_FOUND)
+ // Now test if any new item is deselected
+ bool any_new_deselected = false;
+ for ( size_t idx = 0; idx < countSelOld; idx++ )
{
- any_new_deselected = true;
- break;
+ item = m_oldSelections[idx];
+ if ( selections.Index(item) == wxNOT_FOUND )
+ {
+ any_new_deselected = true;
+ break;
+ }
+ }
+
+ if ( any_new_deselected )
+ {
+ // indicate that this is a selection
+ event.SetExtraLong(0);
+ }
+ else
+ {
+ item = wxNOT_FOUND; // this should be impossible
}
}
-
- if (any_new_deselected)
- {
- // indicate that this is a selection
- event.SetExtraLong( 0 );
- m_oldSelections = selections;
- LBSendEvent( event, this, item );
- return;
- }
-
- wxLogError( wxT("Wrong wxListBox selection") );
+ }
+
+ wxASSERT_MSG( item != wxNOT_FOUND,
+ "Logic error in wxListBox selection event generation code" );
+
+ m_oldSelections = selections;
+
+ LBSendEvent(event, this, item);
}
// ----------------------------------------------------------------------------
void wxListBoxBase::Command(wxCommandEvent& event)
{
SetSelection(event.GetInt(), event.GetExtraLong() != 0);
- (void)ProcessEvent(event);
+ (void)GetEventHandler()->ProcessEvent(event);
}
// ----------------------------------------------------------------------------