filter.h

Go to the documentation of this file.

//
// Copyright RIME Developers
// Distributed under the BSD License
//
// 2011-12-11 GONG Chen <chen.sst@gmail.com>
//
 
#ifndef RIME_FILTER_H_
#define RIME_FILTER_H_
 
#include <rime/candidate.h>
#include <rime/common.h>
#include <rime/component.h>
#include <rime/ticket.h>
 
namespace rime {
 
class Engine;
struct Segment;
class Translation;
 
class Filter : public Class<Filter, const Ticket&> {
 public:
  explicit Filter(const Ticket& ticket)
      : engine_(ticket.engine), name_space_(ticket.name_space) {}
  virtual ~Filter() = default;
 
  virtual an<Translation> Apply(an<Translation> translation,
                                CandidateList* candidates) = 0;
 
  virtual bool AppliesToSegment(Segment* segment) { return true; }
 
  string name_space() const { return name_space_; }
 
 protected:
  Engine* engine_;
  string name_space_;
};
 
}  // namespace rime
 
#endif  // RIME_FILTER_H_