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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_CORE_HORIZONTAL_HEADER_TABLE_H_
#define SFNTLY_CPP_SRC_SFNTLY_TABLE_CORE_HORIZONTAL_HEADER_TABLE_H_
#include "sfntly/table/table.h"
namespace sfntly {
// A Horizontal Header table - 'hhea'.
class HorizontalHeaderTable : public Table,
public RefCounted<HorizontalHeaderTable> {
public:
// Builder for a Horizontal Header table - 'hhea'.
class Builder : public Table::TableBasedTableBuilder,
public RefCounted<Builder> {
public:
// Constructor scope altered to public because C++ does not allow base
// class to instantiate derived class with protected constructors.
Builder(Header* header, WritableFontData* data);
Builder(Header* header, ReadableFontData* data);
virtual ~Builder();
virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
static CALLER_ATTACH Builder* CreateBuilder(Header* header,
WritableFontData* data);
int32_t TableVersion();
void SetTableVersion(int32_t version);
int32_t Ascender();
void SetAscender(int32_t ascender);
int32_t Descender();
void SetDescender(int32_t descender);
int32_t LineGap();
void SetLineGap(int32_t line_gap);
int32_t AdvanceWidthMax();
void SetAdvanceWidthMax(int32_t value);
int32_t MinLeftSideBearing();
void SetMinLeftSideBearing(int32_t value);
int32_t MinRightSideBearing();
void SetMinRightSideBearing(int32_t value);
int32_t XMaxExtent();
void SetXMaxExtent(int32_t value);
int32_t CaretSlopeRise();
void SetCaretSlopeRise(int32_t value);
int32_t CaretSlopeRun();
void SetCaretSlopeRun(int32_t value);
int32_t CaretOffset();
void SetCaretOffset(int32_t value);
int32_t MetricDataFormat();
void SetMetricDataFormat(int32_t value);
int32_t NumberOfHMetrics();
void SetNumberOfHMetrics(int32_t value);
};
virtual ~HorizontalHeaderTable();
int32_t TableVersion();
int32_t Ascender();
int32_t Descender();
int32_t LineGap();
int32_t AdvanceWidthMax();
int32_t MinLeftSideBearing();
int32_t MinRightSideBearing();
int32_t XMaxExtent();
int32_t CaretSlopeRise();
int32_t CaretSlopeRun();
int32_t CaretOffset();
int32_t MetricDataFormat();
int32_t NumberOfHMetrics();
private:
struct Offset {
enum {
kVersion = 0,
kAscender = 4,
kDescender = 6,
kLineGap = 8,
kAdvanceWidthMax = 10,
kMinLeftSideBearing = 12,
kMinRightSideBearing = 14,
kXMaxExtent = 16,
kCaretSlopeRise = 18,
kCaretSlopeRun = 20,
kCaretOffset = 22,
kMetricDataFormat = 32,
kNumberOfHMetrics = 34,
};
};
HorizontalHeaderTable(Header* header, ReadableFontData* data);
};
typedef Ptr<HorizontalHeaderTable> HorizontalHeaderTablePtr;
typedef Ptr<HorizontalHeaderTable::Builder> HorizontalHeaderTableBuilderPtr;
} // namespace sfntly
#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_CORE_HORIZONTAL_HEADER_TABLE_H_