744     , m_undo(0) {}  in IKTool()
999   if (!m_undo) {  in apply()
1000     m_undo = new IKToolUndo();  in apply()
1002       m_undo->addNode(m_joints[i].m_bone->getStageObject()->getId());  in apply()
1005       m_undo->setFirstFootId(m_firstFoot->getId());  in apply()
1006       m_undo->setFirstFootOldPlacement(  in apply()
1072   if (m_undo) {  in leftButtonUp()
1074       m_undo->setFirstFootNewPlacement(  in leftButtonUp()
1076     TUndoManager::manager()->add(m_undo);  in leftButtonUp()
1077     m_undo = 0;  in leftButtonUp()
1154     : DragTool(tool), m_oldY(0), m_dir(dir), m_undo(0) {}  in ChangeDrawingTool()
1163   m_undo                  = new ChangeDrawingUndo(row, col);  in leftButtonDown()
1185   ChangeDrawingUndo *u = dynamic_cast<ChangeDrawingUndo *>(m_undo);  in leftButtonUp()
1191     m_undo = 0;  in leftButtonUp()
1218   ChangeDrawingUndo *u = dynamic_cast<ChangeDrawingUndo *>(m_undo);  in changeDrawing()