1/*
2 * Copyright 2011 Google Inc. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_FORMAT1_H_
18#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_FORMAT1_H_
19
20#include "sfntly/port/java_iterator.h"
21#include "sfntly/table/bitmap/index_sub_table.h"
22
23namespace sfntly {
24// Format 1 Index Subtable Entry.
25class IndexSubTableFormat1 : public IndexSubTable,
26                             public RefCounted<IndexSubTableFormat1> {
27 public:
28  class Builder : public IndexSubTable::Builder,
29                  public RefCounted<Builder> {
30   public:
31    class BitmapGlyphInfoIterator
32        : public RefIterator<BitmapGlyphInfo, Builder, IndexSubTable::Builder> {
33     public:
34      explicit BitmapGlyphInfoIterator(Builder* container);
35      virtual ~BitmapGlyphInfoIterator() {}
36
37      virtual bool HasNext();
38      CALLER_ATTACH virtual BitmapGlyphInfo* Next();
39
40     private:
41      int32_t glyph_id_;
42    };
43
44    virtual ~Builder();
45    virtual int32_t NumGlyphs();
46    virtual int32_t GlyphLength(int32_t glyph_id);
47    virtual int32_t GlyphStartOffset(int32_t glyph_id);
48    CALLER_ATTACH virtual BitmapGlyphInfoIterator* GetIterator();
49
50    virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
51    virtual void SubDataSet();
52    virtual int32_t SubDataSizeToSerialize();
53    virtual bool SubReadyToSerialize();
54    virtual int32_t SubSerialize(WritableFontData* new_data);
55
56    IntegerList* OffsetArray();
57    void SetOffsetArray(const IntegerList& offset_array);
58    CALLER_ATTACH BitmapGlyphInfoIter* Iterator();
59
60    static CALLER_ATTACH Builder* CreateBuilder();
61    static CALLER_ATTACH Builder* CreateBuilder(ReadableFontData* data,
62                                                int32_t index_sub_table_offset,
63                                                int32_t first_glyph_index,
64                                                int32_t last_glyph_index);
65    static CALLER_ATTACH Builder* CreateBuilder(WritableFontData* data,
66                                                int32_t index_sub_table_offset,
67                                                int32_t first_glyph_index,
68                                                int32_t last_glyph_index);
69
70   protected:
71    void Revert();
72
73   private:
74    Builder();
75    Builder(WritableFontData* data,
76            int32_t first_glyph_index,
77            int32_t last_glyph_index);
78    Builder(ReadableFontData* data,
79            int32_t first_glyph_index,
80            int32_t last_glyph_index);
81    IntegerList* GetOffsetArray();
82    void Initialize(ReadableFontData* data);
83
84    static int32_t DataLength(ReadableFontData* data,
85                              int32_t index_sub_table_offset,
86                              int32_t first_glyph_index,
87                              int32_t last_glyph_index);
88
89    IntegerList offset_array_;
90  };
91
92  virtual ~IndexSubTableFormat1();
93
94  virtual int32_t NumGlyphs();
95  virtual int32_t GlyphStartOffset(int32_t glyph_id);
96  virtual int32_t GlyphLength(int32_t glyph_id);
97
98  static int32_t GetDataLength(ReadableFontData* data,
99                               int32_t offset,
100                               int32_t first,
101                               int32_t last);
102
103 private:
104  IndexSubTableFormat1(ReadableFontData* data,
105                       int32_t first_glyph_index,
106                       int32_t last_glyph_index);
107  int32_t Loca(int32_t loca_index);
108
109  friend class Builder;
110};
111typedef Ptr<IndexSubTableFormat1> IndexSubTableFormat1Ptr;
112typedef Ptr<IndexSubTableFormat1::Builder> IndexSubTableFormat1BuilderPtr;
113
114}  // namespace sfntly
115
116#endif  // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_FORMAT1_H_
117