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Diffstat (limited to 'include/core/SkRefDict.h')
-rw-r--r-- | include/core/SkRefDict.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/core/SkRefDict.h b/include/core/SkRefDict.h new file mode 100644 index 0000000000..c66f808b5d --- /dev/null +++ b/include/core/SkRefDict.h @@ -0,0 +1,45 @@ +#ifndef SkRefDict_DEFINED +#define SkRefDict_DEFINED + +#include "SkRefCnt.h" + +/** + * A dictionary of string,refcnt pairs. The dictionary is also an owner of the + * refcnt objects while they are contained. + */ +class SkRefDict : SkNoncopyable { +public: + SkRefDict(); + ~SkRefDict(); + + /** + * Return the data associated with name[], or NULL if no matching entry + * is found. The reference-count of the entry is not affected. + */ + SkRefCnt* find(const char name[]) const; + + /** + * If data is NULL, remove (if present) the entry matching name and call + * prev_data->unref() on the data for the matching entry. + * If data is not-NULL, replace the existing entry matching name and + * call (prev_data->unref()), or add a new one. In either case, + * data->ref() is called. + */ + void set(const char name[], SkRefCnt* data); + + /** + * Remove the matching entry (if found) and unref its data. + */ + void remove(const char name[]) { this->set(name, NULL); } + + /** + * Remove all entries, and unref() their associated data. + */ + void removeAll(); + +private: + struct Impl; + Impl* fImpl; +}; + +#endif |