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Diffstat (limited to 'engines/gob/dbase.h')
-rw-r--r-- | engines/gob/dbase.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/engines/gob/dbase.h b/engines/gob/dbase.h new file mode 100644 index 0000000000..5f260f965f --- /dev/null +++ b/engines/gob/dbase.h @@ -0,0 +1,103 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#ifndef GOB_DBASE_H +#define GOB_DBASE_H + +#include "common/system.h" +#include "common/util.h" +#include "common/str.h" +#include "common/stream.h" +#include "common/array.h" + +namespace Gob { + +/** + * A class for reading dBase files. + * + * Only dBase III files supported for now, and only field type + * string is actually useful. Further missing is reading of MDX + * index files and support for the external "Memo" data file. + */ +class dBase { +public: + enum Type { + kTypeString = 0x43, // 'C' + kTypeDate = 0x44, // 'D' + kTypeBool = 0x4C, // 'L' + kTypeMemo = 0x4D, // 'M' + kTypeNumber = 0x4E // 'N' + }; + + /** A field description. */ + struct Field { + Common::String name; ///< Name of the field. + + Type type; ///< Type of the field. + uint8 size; ///< Size of raw field data in bytes. + uint8 decimals; ///< Number of decimals the field holds. + }; + + /** A record. */ + struct Record { + bool deleted; ///< Has this record been deleted? + Common::Array<const byte *> fields; ///< Raw field data. + }; + + dBase(); + ~dBase(); + + bool load(Common::SeekableReadStream &stream); + void clear(); + + byte getVersion() const; + + /** Return the date the database was last updated. */ + TimeDate getLastUpdate() const; + + const Common::Array<Field> &getFields() const; + const Common::Array<Record> &getRecords() const; + + /** Extract a string out of raw field data. */ + Common::String getString(const Record &record, int field) const; + +private: + byte _version; + bool _hasMemo; + + TimeDate _lastUpdate; + + Common::Array<Field> _fields; + Common::Array<Record> _records; + + byte *_recordData; + + static inline uint32 stringLength(const byte *data, uint32 max); + static inline Common::String readString(Common::SeekableReadStream &stream, int n); +}; + +} // End of namespace Gob + +#endif // GOB_DBASE_H |