Hi
I am implementing a Item Delegate for my tree based model.
I need to create a different editor depending upon the item being edited.
At the moment I am using switch statements to decide which editor to supply, but as my model grows so do the switch statements.

Qt Code: 
  1. QWidget* editor;
  2.  
  3. 	QModelIndex parentIndex = index.model()->parent(index);
  4.  
  5. 	switch (index.model()->parent(index).row())
  6. 	{
  7. 		case 0:
  8. 		{
  9. 			switch (index.row())
  10. 			{
  11. 				case 0:
  12. 				case 1:
  13. 				{
  14. 					editor = new QLineEdit(parent);
  15. 				}
  16. 				break;
  17.  
  18. 				case 2:
  19. 				{
  21. 					Common::Enumerations::surveyUnits().getDisplayStrings(list);
  22. 					editor = new QComboBox(parent);
  23. 					((QComboBox*)editor)->addItems(list);
  24. 				}
  25. 				break;
  26. 			}
  27. 		}
  28. 		break;
  29.  
  30. 		case 1:
  31. 		{
  32. 			editor = new QLineEdit(parent);
  33. 			((QLineEdit*)editor)->setValidator(new QIntValidator());
  34. 		}
  35. 		break;
  36. 	}
  37. 	return editor;
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Is there a better way to achieve this?

TIA