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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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include "sfntly/table/bitmap/bitmap_glyph.h"
#include "sfntly/table/bitmap/bitmap_glyph_info.h"
#include "sfntly/table/subtable_container_table.h"
namespace sfntly {
class EbdtTable : public SubTableContainerTable,
public RefCounted<EbdtTable> {
struct Offset {
enum {
kVersion = 0,
kHeaderLength = DataSize::kFixed,
class Builder : public SubTableContainerTable::Builder,
public RefCounted<Builder> {
// 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 int32_t SubSerialize(WritableFontData* new_data);
virtual bool SubReadyToSerialize();
virtual int32_t SubDataSizeToSerialize();
virtual void SubDataSet();
virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
void SetLoca(BitmapLocaList* loca_list);
void GenerateLocaList(BitmapLocaList* output);
// Gets the List of glyph builders for the glyph table builder. These may be
// manipulated in any way by the caller and the changes will be reflected in
// the final glyph table produced.
// If there is no current data for the glyph builder or the glyph builders
// have not been previously set then this will return an empty glyph builder
// List. If there is current data (i.e. data read from an existing font) and
// the loca list has not been set or is null, empty, or invalid, then an
// empty glyph builder List will be returned.
// @return the list of glyph builders
BitmapGlyphBuilderList* GlyphBuilders();
// Replace the internal glyph builders with the one provided. The provided
// list and all contained objects belong to this builder.
// This call is only required if the entire set of glyphs in the glyph
// table builder are being replaced. If the glyph builder list provided from
// the {@link EbdtTable.Builder#glyphBuilders()} is being used and modified
// then those changes will already be reflected in the glyph table builder.
// @param glyphBuilders the new glyph builders
void SetGlyphBuilders(BitmapGlyphBuilderList* glyph_builders);
void Revert();
// Create a new builder using the header information and data provided.
// @param header the header information
// @param data the data holding the table
static CALLER_ATTACH Builder* CreateBuilder(Header* header,
WritableFontData* data);
static CALLER_ATTACH Builder* CreateBuilder(Header* header,
ReadableFontData* data);
BitmapGlyphBuilderList* GetGlyphBuilders();
static void Initialize(ReadableFontData* data,
BitmapLocaList* loca_list,
BitmapGlyphBuilderList* output);
static const int32_t kVersion = 0x00020000; // TODO(stuartg): const/enum
BitmapLocaList glyph_loca_;
BitmapGlyphBuilderList glyph_builders_;
virtual ~EbdtTable();
int32_t Version();
CALLER_ATTACH BitmapGlyph* Glyph(int32_t offset,
int32_t length,
int32_t format);
EbdtTable(Header* header, ReadableFontData* data);
typedef Ptr<EbdtTable> EbdtTablePtr;
typedef Ptr<EbdtTable::Builder> EbdtTableBuilderPtr;
} // namespace sfntly