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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_INDEX_SUBTABLE_FORMAT4_H_
#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_FORMAT4_H_
#include "sfntly/table/bitmap/index_sub_table.h"
namespace sfntly {
class IndexSubTableFormat4 : public IndexSubTable,
public RefCounted<IndexSubTableFormat4> {
public:
class CodeOffsetPair {
public:
int32_t glyph_code() const { return glyph_code_; }
int32_t offset() const { return offset_; }
protected:
CodeOffsetPair(int32_t glyph_code, int32_t offset);
// TODO(arthurhsu): C++ style guide prohibits protected members.
int32_t glyph_code_;
int32_t offset_;
};
class Builder;
class CodeOffsetPairBuilder : public CodeOffsetPair {
public:
void set_glyph_code(int32_t v) { glyph_code_ = v; }
void set_offset(int32_t v) { offset_ = v; }
private:
CodeOffsetPairBuilder(int32_t glyph_code, int32_t offset);
friend class Builder;
};
class CodeOffsetPairGlyphCodeComparator {
public:
bool operator()(const CodeOffsetPair& lhs, const CodeOffsetPair& rhs);
};
class Builder : public IndexSubTable::Builder,
public RefCounted<Builder> {
public:
class BitmapGlyphInfoIterator
: public RefIterator<BitmapGlyphInfo, Builder, IndexSubTable::Builder> {
public:
explicit BitmapGlyphInfoIterator(Builder* container);
virtual ~BitmapGlyphInfoIterator() {}
virtual bool HasNext();
CALLER_ATTACH virtual BitmapGlyphInfo* Next();
private:
int32_t code_offset_pair_index_;
};
virtual ~Builder();
virtual int32_t NumGlyphs();
virtual int32_t GlyphLength(int32_t glyph_id);
virtual int32_t GlyphStartOffset(int32_t glyph_id);
CALLER_ATTACH virtual BitmapGlyphInfoIter* GetIterator();
virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
virtual void SubDataSet();
virtual int32_t SubDataSizeToSerialize();
virtual bool SubReadyToSerialize();
virtual int32_t SubSerialize(WritableFontData* new_data);
void Revert();
void SetOffsetArray(const std::vector<CodeOffsetPairBuilder>& pair_array);
static CALLER_ATTACH Builder* CreateBuilder(ReadableFontData* data,
int32_t index_sub_table_offset,
int32_t first_glyph_index,
int32_t last_glyph_index);
static CALLER_ATTACH Builder* CreateBuilder(WritableFontData* data,
int32_t index_sub_table_offset,
int32_t first_glyph_index,
int32_t last_glyph_index);
private:
Builder(WritableFontData* data,
int32_t first_glyph_index,
int32_t last_glyph_index);
Builder(ReadableFontData* data,
int32_t first_glyph_index,
int32_t last_glyph_index);
std::vector<CodeOffsetPairBuilder>* GetOffsetArray();
void Initialize(ReadableFontData* data);
int32_t FindCodeOffsetPair(int32_t glyph_id);
static int32_t DataLength(ReadableFontData* data,
int32_t index_sub_table_offset,
int32_t first_glyph_index,
int32_t last_glyph_index);
std::vector<CodeOffsetPairBuilder> offset_pair_array_;
};
virtual ~IndexSubTableFormat4();
virtual int32_t NumGlyphs();
virtual int32_t GlyphStartOffset(int32_t glyph_id);
virtual int32_t GlyphLength(int32_t glyph_id);
private:
IndexSubTableFormat4(ReadableFontData* data,
int32_t first_glyph_index,
int32_t last_glyph_index);
int32_t FindCodeOffsetPair(int32_t glyph_id);
static int32_t NumGlyphs(ReadableFontData* data, int32_t table_offset);
friend class Builder;
};
typedef Ptr<IndexSubTableFormat4> IndexSubTableFormat4Ptr;
typedef Ptr<IndexSubTableFormat4::Builder> IndexSubTableFormat4BuilderPtr;
} // namespace sfntly
#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_FORMAT4_H_
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