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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_SUBSETTER_H_
+#define TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_SUBSETTER_H_
+
+#include "sfntly/font.h"
+// Cannot remove this header due to Ptr<T> instantiation issue
+#include "subtly/character_predicate.h"
+
+namespace subtly {
+// Subsets a given font using a character predicate.
+class Subsetter : public sfntly::RefCounted<Subsetter> {
+ public:
+ Subsetter(sfntly::Font* font, CharacterPredicate* predicate);
+ Subsetter(const char* font_path, CharacterPredicate* predicate);
+ virtual ~Subsetter() { }
+
+ // Performs subsetting returning the subsetted font.
+ virtual CALLER_ATTACH sfntly::Font* Subset();
+
+ private:
+ sfntly::Ptr<sfntly::Font> font_;
+ sfntly::Ptr<CharacterPredicate> predicate_;
+};
+}
+
+#endif // TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_SUBSETTER_H_