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+/*
+ * Copyright 2011 Google Inc. All Rights Reserved.
+ *
+ * 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 TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_MERGER_H_
+#define TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_MERGER_H_
+
+#include "subtly/character_predicate.h"
+#include "subtly/font_info.h"
+
+namespace sfntly {
+class Font;
+}
+
+namespace subtly {
+// Merges the subsets in the font array into a single font.
+class Merger : public sfntly::RefCounted<Merger> {
+ public:
+  explicit Merger(sfntly::FontArray* fonts);
+  virtual ~Merger() { }
+
+  // Performs merging returning the subsetted font.
+  virtual CALLER_ATTACH sfntly::Font* Merge();
+
+ protected:
+  virtual CALLER_ATTACH FontInfo* MergeFontInfos();
+
+ private:
+  FontIdMap fonts_;
+};
+}
+
+#endif  // TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_MERGER_H_