Qt Code: 
  1. class genericTaskList : public QListWidget
  2. {
  3. 	Q_OBJECT  
  4. 	public:
  5. 		unsigned int rowCounter;
  6.  
  7. 		genericTaskList (QWidget *parentWidget)
  8. 		{
  9. 			setParent      (parentWidget);
  10. 			setFixedSize (445, 445);
  11.  
  12. 			QListWidgetItem *defaultText = new QListWidgetItem ("Double click here to compose the new task.");
  13. 			defaultText->setFlags (defaultText->flags () | Qt :: ItemIsEditable);
  14.  
  15. 			rowCounter = 0;
  16. 			insertItem (rowCounter, defaultText);
  17.  
  18. 			QObject :: connect (this, SIGNAL (itemDoubleClicked (QListWidgetItem*)), this, SLOT (addDefaultText (QListWidgetItem*)));
  19. 			QObject :: connect (this, SIGNAL (itemChanged (QListWidgetItem*)), this, SLOT (addDefaultText (QListWidgetItem*)));
  20. 		}
  21.  
  22. 	public slots:
  23. 		void addDefaultText (QListWidgetItem*f)
  24. 		{
  25. 			// Returns the current row number.
  26. 			unsigned int currentRow            = row (f);
  27. 			// Returns the current row text.
  28. 			QString          textOfCurrentRow = f->text ();
  29.  
  30. 			// The new default row should get inserted if and only if, the last row created has been double clicked and its default text has been changed.
  31. 			if ((currentRow == rowCounter) 
  32. 				&& (textOfCurrentRow.toStdString () != "Double click here to compose the new task.") 
  33. 				&& (textOfCurrentRow.toStdString () != ""))
  34. 			{
  35. 				++rowCounter;
  36.  
  37. 				QListWidgetItem *defaultText = new QListWidgetItem ("Double click here to compose the new task.");
  38. 				defaultText->setFlags (defaultText->flags () | Qt :: ItemIsEditable);
  39.  
  40. 				insertItem        (rowCounter, defaultText);
  41. 				setCurrentRow (rowCounter);
  42. 			}
  43. 			else if (textOfCurrentRow.toStdString () == "")
  44. 			{
  45. 				takeItem           (rowCounter);
  46.  
  47. 				QListWidgetItem *defaultText = new QListWidgetItem ("Double click here to compose the new task.");
  48. 				defaultText->setFlags (defaultText->flags () | Qt :: ItemIsEditable);
  49. 				insertItem        (rowCounter, defaultText);
  50. 				setCurrentRow (rowCounter);
  51. 			}
  52. 		}
  53. };
To copy to clipboard, switch view to plain text mode 

The problem here is that I can edit the text if and only if I double click the text. Single click or anything else doesn't work. I tried changing that signal from double click to single click, didn't help.

Please guide - Double clicking all the time is a pain.