HistoryTreeWidget.h

#ifndef HistoryTreeWidget_H
#define HistoryTreeWidget_H

#include <QTreeWidget>
#include <QMutex>


class QResizeEvent;
class QUndoCommand;

namespace Isis {
  class Project;
  class WorkOrder;

  class HistoryTreeWidget : public QTreeWidget {
      Q_OBJECT
    public:
      HistoryTreeWidget(Project *project, QWidget *parent = 0);
      virtual ~HistoryTreeWidget();

      void addToHistory(QString historyEntry);

    protected:
      int sizeHintForColumn(int column) const;

    private:
      void refit();
      void updateStatus(QTreeWidgetItem *);
      QMutex m_mutex;

    private slots:
      void addToHistory(WorkOrder *);
      void updateProgressWidgets();
      void markNotUndone(QTreeWidgetItem *);
      void markUndone(QTreeWidgetItem *);
      void handleUndoIndexChanged(int);
      void removeFromHistory(QObject *);
      void showHistory();
      void updateStatus(WorkOrder *);


      QTreeWidgetItem *undoCommandToTreeItem(const QUndoCommand *);

    private:
      Q_DISABLE_COPY(HistoryTreeWidget);

      Project *m_project; 
  };
}

#endif