130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun/* 230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Copyright 2011 Google Inc. All Rights Reserved. 330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Licensed under the Apache License, Version 2.0 (the "License"); 530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * you may not use this file except in compliance with the License. 630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * You may obtain a copy of the License at 730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * http://www.apache.org/licenses/LICENSE-2.0 930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 1030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Unless required by applicable law or agreed to in writing, software 1130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * distributed under the License is distributed on an "AS IS" BASIS, 1230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * See the License for the specific language governing permissions and 1430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * limitations under the License. 1530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun */ 1630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 1730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_SUBTABLE_H_ 1830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#define SFNTLY_CPP_SRC_SFNTLY_TABLE_SUBTABLE_H_ 1930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include "sfntly/table/font_data_table.h" 2130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunnamespace sfntly { 2330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// An abstract base class for subtables. Subtables are smaller tables nested 2530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// within other tables and don't have an entry in the main font index. Examples 2630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// of these are the CMap subtables within CMap table (cmap) or a glyph within 2730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// the glyph table (glyf). 2830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunclass SubTable : public FontDataTable { 2930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 3030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun class Builder : public FontDataTable::Builder { 3130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 3230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~Builder(); 3330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 3430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 3530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param data the data for the subtable being built 3630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param master_data the data for the full table 3730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(int32_t data_size); 3830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(WritableFontData* data, ReadableFontData* master_data); 3930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(ReadableFontData* data, ReadableFontData* master_data); 4030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun explicit Builder(WritableFontData* data); 4130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun explicit Builder(ReadableFontData* data); 4230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun ReadableFontData* master_read_data() { return master_data_; } 4430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 4630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun ReadableFontDataPtr master_data_; 4730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun }; 4830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~SubTable(); 5030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t Padding() { return padding_; } 5130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Sets the amount of padding that is part of the data being used by this 5330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // subtable. 5430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void set_padding(int32_t padding) { padding_ = padding; } 5530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 5730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun SubTable(ReadableFontData* data, ReadableFontData* master_data); 5830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Note: constructor refactored in C++ to avoid heavy lifting. 6030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // caller need to do data->Slice(offset, length) beforehand. 6130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun explicit SubTable(ReadableFontData* data); 6230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun ReadableFontData* master_read_data() { return master_data_; } 6430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 6630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // The data for the whole table in which this subtable is contained. 6730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun ReadableFontDataPtr master_data_; 6830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t padding_; 6930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun}; 7030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 7130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun} // namespace sfntly 7230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 7330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_SUBTABLE_H_ 74