table.cc revision 158cdcb9cf09418ba8b49f4be7be69e37aa8e9fa 
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// type.h needs to be included first because of building issues on Windows
18// Type aliases we delcare are defined in other headers and make the build
19// fail otherwise.
20#include "sfntly/port/type.h"
21#include "sfntly/table/table.h"
22
23#include "sfntly/font.h"
24#include "sfntly/tag.h"
25#include "sfntly/table/bitmap/ebdt_table.h"
26#include "sfntly/table/bitmap/eblc_table.h"
27#include "sfntly/table/core/cmap_table.h"
28#include "sfntly/table/core/font_header_table.h"
29#include "sfntly/table/core/horizontal_header_table.h"
30#include "sfntly/table/core/horizontal_metrics_table.h"
31#include "sfntly/table/core/maximum_profile_table.h"
32#include "sfntly/table/core/name_table.h"
33#include "sfntly/table/core/os2_table.h"
34#include "sfntly/table/generic_table_builder.h"
35#include "sfntly/table/table_based_table_builder.h"
36#include "sfntly/table/truetype/glyph_table.h"
37#include "sfntly/table/truetype/loca_table.h"
38
39namespace sfntly {
40
41/******************************************************************************
42 * Table class
43 ******************************************************************************/
44Table::~Table() {}
45
46int64_t Table::CalculatedChecksum() {
47  return data_->Checksum();
48}
49
50void Table::SetFont(Font* font) {
51  font_ = font;
52}
53
54Table::Table(Header* header, ReadableFontData* data)
55    : FontDataTable(data) {
56  header_ = header;
57}
58
59/******************************************************************************
60 * Table::Builder class
61 ******************************************************************************/
62Table::Builder::~Builder() {
63  header_.Release();
64}
65
66void Table::Builder::NotifyPostTableBuild(FontDataTable* table) {
67  if (model_changed() || data_changed()) {
68    Table* derived_table = down_cast<Table*>(table);
69    derived_table->header_ = new Header(header()->tag(),
70                                        derived_table->DataLength());
71  }
72}
73
74CALLER_ATTACH
75Table::Builder* Table::Builder::GetBuilder(Header* header,
76                                           WritableFontData* table_data) {
77  int32_t tag = header->tag();
78  Table::Builder* builder_raw = NULL;
79
80  // Note: Tables are commented out when they are not used/ported.
81  // TODO(arthurhsu): IMPLEMENT: finish tables that are not ported.
82  if (tag == Tag::head) {
83    builder_raw = static_cast<Table::Builder*>(
84        FontHeaderTable::Builder::CreateBuilder(header, table_data));
85#if defined (SFNTLY_ENABLE_CMAP_HANDLING)
86  } else if (tag == Tag::cmap) {
87    builder_raw = static_cast<Table::Builder*>(
88        CMapTable::Builder::CreateBuilder(header, table_data));
89#endif  // SFNTLY_ENABLE_CMAP_HANDLING
90  } else if (tag == Tag::hhea) {
91    builder_raw = static_cast<Table::Builder*>(
92        HorizontalHeaderTable::Builder::CreateBuilder(header, table_data));
93  } else if (tag == Tag::hmtx) {
94    builder_raw = static_cast<Table::Builder*>(
95        HorizontalMetricsTable::Builder::CreateBuilder(header, table_data));
96  } else if (tag == Tag::maxp) {
97    builder_raw = static_cast<Table::Builder*>(
98        MaximumProfileTable::Builder::CreateBuilder(header, table_data));
99  } else if (tag == Tag::name) {
100    builder_raw = static_cast<Table::Builder*>(
101        NameTable::Builder::CreateBuilder(header, table_data));
102  } else if (tag == Tag::OS_2) {
103    builder_raw = static_cast<Table::Builder*>(
104        OS2Table::Builder::CreateBuilder(header, table_data));
105  }/* else if (tag == Tag::PostScript) {
106    builder_raw = static_cast<Table::Builder*>(
107        PostScriptTable::Builder::CreateBuilder(header, table_data));
108  } else if (tag == Tag::cvt) {
109    builder_raw = static_cast<Table::Builder*>(
110        ControlValueTable::Builder::CreateBuilder(header, table_data));
111  }*/ else if (tag == Tag::glyf) {
112    builder_raw = static_cast<Table::Builder*>(
113        GlyphTable::Builder::CreateBuilder(header, table_data));
114  } else if (tag == Tag::loca) {
115    builder_raw = static_cast<Table::Builder*>(
116        LocaTable::Builder::CreateBuilder(header, table_data));
117#if defined (SFNTLY_ENABLE_BITMAP_HANDLING)
118  } else if (tag == Tag::EBDT || tag == Tag::bdat) {
119    builder_raw = static_cast<Table::Builder*>(
120        EbdtTable::Builder::CreateBuilder(header, table_data));
121  } else if (tag == Tag::EBLC || tag == Tag::bloc) {
122    builder_raw = static_cast<Table::Builder*>(
123        EblcTable::Builder::CreateBuilder(header, table_data));
124#endif  // SFNTLY_ENABLE_BITMAP_HANDLING
125  } /* else if (tag == Tag::EBSC) {
126    builder_raw = static_cast<Table::Builder*>(
127        EbscTable::Builder::CreateBuilder(header, table_data));
128  }*/
129    /* else if (tag == Tag::prep) {
130    builder_raw = static_cast<Table::Builder*>(
131        ControlProgramTable::Builder::CreateBuilder(header, table_data));
132  }*/ else if (tag == Tag::bhed) {
133    builder_raw = static_cast<Table::Builder*>(
134        FontHeaderTable::Builder::CreateBuilder(header, table_data));
135  } else {
136    builder_raw = static_cast<Table::Builder*>(
137        GenericTableBuilder::CreateBuilder(header, table_data));
138  }
139
140  return builder_raw;
141}
142
143Table::Builder::Builder(Header* header, WritableFontData* data)
144    : FontDataTable::Builder(data) {
145  header_ = header;
146}
147
148Table::Builder::Builder(Header* header, ReadableFontData* data)
149    : FontDataTable::Builder(data) {
150  header_ = header;
151}
152
153Table::Builder::Builder(Header* header) {
154  header_ = header;
155}
156
157}  // namespace sfntly
158