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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef LATINIME_TRAVERSAL_H
     18 #define LATINIME_TRAVERSAL_H
     19 
     20 #include "defines.h"
     21 
     22 namespace latinime {
     23 
     24 class DicTraverseSession;
     25 
     26 class Traversal {
     27  public:
     28     virtual int getMaxPointerCount() const = 0;
     29     virtual bool allowsErrorCorrections(const DicNode *const dicNode) const = 0;
     30     virtual bool isOmission(const DicTraverseSession *const traverseSession,
     31             const DicNode *const dicNode, const DicNode *const childDicNode,
     32             const bool allowsErrorCorrections) const = 0;
     33     virtual bool isSpaceSubstitutionTerminal(const DicTraverseSession *const traverseSession,
     34             const DicNode *const dicNode) const = 0;
     35     virtual bool isSpaceOmissionTerminal(const DicTraverseSession *const traverseSession,
     36                const DicNode *const dicNode) const = 0;
     37     virtual bool shouldDepthLevelCache(const DicTraverseSession *const traverseSession) const = 0;
     38     virtual bool shouldNodeLevelCache(const DicTraverseSession *const traverseSession,
     39             const DicNode *const dicNode) const = 0;
     40     virtual bool canDoLookAheadCorrection(const DicTraverseSession *const traverseSession,
     41             const DicNode *const dicNode) const = 0;
     42     virtual ProximityType getProximityType(const DicTraverseSession *const traverseSession,
     43             const DicNode *const dicNode, const DicNode *const childDicNode) const = 0;
     44     virtual bool sameAsTyped(const DicTraverseSession *const traverseSession,
     45             const DicNode *const dicNode) const = 0;
     46     virtual bool needsToTraverseAllUserInput() const = 0;
     47     virtual float getMaxSpatialDistance() const = 0;
     48     virtual bool autoCorrectsToMultiWordSuggestionIfTop() const = 0;
     49     virtual int getDefaultExpandDicNodeSize() const = 0;
     50     virtual int getMaxCacheSize(const int inputSize) const = 0;
     51     virtual bool isPossibleOmissionChildNode(const DicTraverseSession *const traverseSession,
     52             const DicNode *const parentDicNode, const DicNode *const dicNode) const = 0;
     53     virtual bool isGoodToTraverseNextWord(const DicNode *const dicNode) const = 0;
     54 
     55  protected:
     56     Traversal() {}
     57     virtual ~Traversal() {}
     58 
     59  private:
     60     DISALLOW_COPY_AND_ASSIGN(Traversal);
     61 };
     62 } // namespace latinime
     63 #endif // LATINIME_TRAVERSAL_H
     64