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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 SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_EBSC_TABLE_H_
+#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_EBSC_TABLE_H_
+
+#include "sfntly/table/bitmap/eblc_table.h"
+
+namespace sfntly {
+
+class EbscTable : public Table,
+ public RefCounted<EbscTable> {
+ public:
+ struct Offset {
+ enum {
+ // header
+ kVersion = 0,
+ kNumSizes = DataSize::kFixed,
+ kHeaderLength = kNumSizes + DataSize::kULONG,
+ kBitmapScaleTableStart = kHeaderLength,
+
+ // bitmapScaleTable
+ kBitmapScaleTable_hori = 0,
+ kBitmapScaleTable_vert = EblcTable::Offset::kSbitLineMetricsLength,
+ kBitmapScaleTable_ppemX = kBitmapScaleTable_vert +
+ EblcTable::Offset::kSbitLineMetricsLength,
+ kBitmapScaleTable_ppemY = kBitmapScaleTable_ppemX + DataSize::kBYTE,
+ kBitmapScaleTable_substitutePpemX = kBitmapScaleTable_ppemY +
+ DataSize::kBYTE,
+ kBitmapScaleTable_substitutePpemY = kBitmapScaleTable_substitutePpemX +
+ DataSize::kBYTE,
+ kBitmapScaleTableLength = kBitmapScaleTable_substitutePpemY +
+ DataSize::kBYTE,
+ };
+ };
+
+ class BitmapScaleTable : public SubTable,
+ public RefCounted<BitmapScaleTable> {
+ public:
+ virtual ~BitmapScaleTable();
+ int32_t PpemX();
+ int32_t PpemY();
+ int32_t SubstitutePpemX();
+ int32_t SubstitutePpemY();
+
+ protected:
+ // Note: caller to do data->Slice(offset, Offset::kBitmapScaleTableLength)
+ explicit BitmapScaleTable(ReadableFontData* data);
+ };
+
+ // TODO(stuartg): currently the builder just builds from initial data
+ // - need to make fully working but few if any examples to test with
+ class Builder : public Table::Builder,
+ public RefCounted<Builder> {
+ public:
+ virtual ~Builder();
+
+ static CALLER_ATTACH Builder* CreateBuilder(Header* header,
+ WritableFontData* data);
+
+ protected:
+ Builder(Header* header, WritableFontData* data);
+ Builder(Header* header, ReadableFontData* data);
+
+ virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
+ virtual void SubDataSet();
+ virtual int32_t SubDataSizeToSerialize();
+ virtual bool SubReadyToSerialize();
+ virtual int32_t SubSerialize(WritableFontData* new_data);
+ };
+
+ virtual ~EbscTable();
+
+ int32_t Version();
+ int32_t NumSizes();
+ // Note: renamed from bitmapScaleTable
+ CALLER_ATTACH BitmapScaleTable* GetBitmapScaleTable(int32_t index);
+
+ private:
+ EbscTable(Header* header, ReadableFontData* data);
+ friend class Builder;
+};
+typedef Ptr<EbscTable> EbscTablePtr;
+typedef Ptr<EbscTable::Builder> EbscTableBuilderPtr;
+
+} // namespace sfntly
+
+#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_EBSC_TABLE_H_