1 files changed, 61 insertions, 0 deletions
diff --git a/include/core/SkRefDict.h b/include/core/SkRefDict.h
new file mode 100644
index 0000000..3ee27d9
--- /dev/null
+++ b/include/core/SkRefDict.h
@@ -0,0 +1,61 @@
+/*
+    Copyright 2011 Google Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+#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