1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 #ifndef SkRefDict_DEFINED 11 #define SkRefDict_DEFINED 12 13 #include "SkRefCnt.h" 14 15 /** 16 * A dictionary of string,refcnt pairs. The dictionary is also an owner of the 17 * refcnt objects while they are contained. 18 */ 19 class SK_API SkRefDict : SkNoncopyable { 20 public: 21 SkRefDict(); 22 ~SkRefDict(); 23 24 /** 25 * Return the data associated with name[], or NULL if no matching entry 26 * is found. The reference-count of the entry is not affected. 27 */ 28 SkRefCnt* find(const char name[]) const; 29 30 /** 31 * If data is NULL, remove (if present) the entry matching name and call 32 * prev_data->unref() on the data for the matching entry. 33 * If data is not-NULL, replace the existing entry matching name and 34 * call (prev_data->unref()), or add a new one. In either case, 35 * data->ref() is called. 36 */ 37 void set(const char name[], SkRefCnt* data); 38 39 /** 40 * Remove the matching entry (if found) and unref its data. 41 */ 42 void remove(const char name[]) { this->set(name, NULL); } 43 44 /** 45 * Remove all entries, and unref() their associated data. 46 */ 47 void removeAll(); 48 49 private: 50 struct Impl; 51 Impl* fImpl; 52 }; 53 54 #endif 55
