/** @class Job
* @brief A parent class to represent long-running tasks which are run in their own thread.
*/
-class Job : public boost::enable_shared_from_this<Job>
+class Job : public boost::enable_shared_from_this<Job>, public boost::noncopyable
{
public:
- Job (boost::shared_ptr<Film>);
+ Job (boost::shared_ptr<const Film>);
virtual ~Job() {}
/** @return user-readable name of this job */
virtual void run () = 0;
void start ();
+ void pause ();
+ void resume ();
void cancel ();
bool is_new () const;
bool finished_ok () const;
bool finished_in_error () const;
bool finished_cancelled () const;
+ bool paused () const;
std::string error_summary () const;
std::string error_details () const;
void ascend ();
void descend (float);
float overall_progress () const;
+ bool progress_unknown () const {
+ return _progress_unknown;
+ }
- /** Emitted by the JobManagerView from the UI thread */
+ boost::signals2::signal<void()> Progress;
+ /** Emitted from the UI thread when the job is finished */
boost::signals2::signal<void()> Finished;
protected:
/** Description of a job's state */
enum State {
- NEW, ///< the job hasn't been started yet
- RUNNING, ///< the job is running
- FINISHED_OK, ///< the job has finished successfully
+ NEW, ///< the job hasn't been started yet
+ RUNNING, ///< the job is running
+ PAUSED, ///< the job has been paused
+ FINISHED_OK, ///< the job has finished successfully
FINISHED_ERROR, ///< the job has finished in error
FINISHED_CANCELLED ///< the job was cancelled
};
void set_state (State);
void set_error (std::string s, std::string d);
- boost::shared_ptr<Film> _film;
+ boost::shared_ptr<const Film> _film;
private:
/** true if this job's progress will always be unknown */
bool _progress_unknown;
+ float _last_set;
+
int _ran_for;
};