ProgressSubjectMultiStep.h

Go to the documentation of this file.

#ifndef PROGRESSSUBJECTMULTISTEP_H
#define PROGRESSSUBJECTMULTISTEP_H

#include <list>

class ProgressObserverMultiStep;

class ProgressSubjectMultiStep
{
  public:
    virtual ~ProgressSubjectMultiStep() {}

    virtual void attach(ProgressObserverMultiStep *observer, int perStepFreq);

    virtual void detach(ProgressObserverMultiStep *observer);

    virtual int stepCount() const =0;

    virtual int currentStep() const =0;
    
    virtual int patchCount() const =0;

    virtual int currentPatch() const =0;
    
  protected:
    void notifyStep();
    
    void notifyPerStepProgress();
  
  private:
    struct TItem {
      int offset;
      int ratio;
      int last;
      ProgressObserverMultiStep *observer;
    };
    typedef std::list<TItem> TList;
    TList observerList_;
    friend class ObserverFinder;
};

#endif // PROGRESSSUBJECTMULTISTEP_H

---