taskfile.h

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#ifndef UPDRAFT_SRC_PLUGINS_TASKDECL_TASKFILE_H_
#define UPDRAFT_SRC_PLUGINS_TASKDECL_TASKFILE_H_

#include <QObject>
#include <QString>
#include "datahistory.h"

namespace Updraft {

class TaskFile : public QObject {
  Q_OBJECT

 public:
  enum StorageState {
    UNSTORED_EMPTY,
    UNSTORED_EDITED,
    STORED_SYNCHRONIZED,
    STORED_DIRTY
  };

  TaskFile();

  explicit TaskFile(const QString &filePath_);

  QString getFileName() const;

  QString getFilePath() const;

  StorageState getStorageState() const;

  bool isFirstInHistory() const;

  bool isLastInHistory() const;

  void save();

  void saveAs(const QString &filePath_);

  TaskData* beginEdit(bool createNewState);

  void endEdit();

  const TaskData* beginRead() const;

  void endRead() const;

  void undo();

  void redo();

 signals:
  void dataChanged();

  void storageStateChanged();

 private:
  void updateOnUndoRedo();

  QString filePath;

  StorageState storageState;

  DataHistory dataHistory;

  mutable bool locked;
};

}  // End namespace Updraft

#endif  // UPDRAFT_SRC_PLUGINS_TASKDECL_TASKFILE_H_