75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/* ****************************************************************************
|
|
* libcasio/format/mcs/spreadsheet.h -- description of the MCS spreadsheet fmt.
|
|
* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
|
|
*
|
|
* This file is part of libcasio.
|
|
* libcasio is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 3.0 of the License,
|
|
* or (at your option) any later version.
|
|
*
|
|
* libcasio 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
|
|
* ************************************************************************* */
|
|
#ifndef LIBCASIO_FORMAT_MCS_SPREADSHEET_H
|
|
# define LIBCASIO_FORMAT_MCS_SPREADSHEET_H
|
|
# include "../../cdefs.h"
|
|
# include "../../number.h"
|
|
# pragma pack(1)
|
|
|
|
CASIO_BEGIN_NAMESPACE
|
|
|
|
/* Spreadsheets are more complicated than that.
|
|
*
|
|
* For normal ones, there is a header: */
|
|
|
|
typedef struct casio_mcs_spreadsheet_header_s {
|
|
/* Has subheader: 0x01 if yes. */
|
|
|
|
casio_uint8_t casio_mcs_spreadsheet_header_has_subheader;
|
|
|
|
/* Column count (max: 26), on 24 bits and non-aligned. */
|
|
|
|
casio_uint32_t casio_mcs_spreadsheet_header_column_count :24;
|
|
} casio_mcs_spreadsheet_header_t;
|
|
|
|
/* Then, if it is a normal spreadsheet, there is a subheader,
|
|
* a column directory and a column definition table.
|
|
*
|
|
* Here's the subheader: */
|
|
|
|
typedef struct casio_mcs_spreadsheet_subheader_s {
|
|
/* Alignment or magic? {0, 0, 0, 0} */
|
|
|
|
casio_uint8_t casio_mcs_spreadsheet_subheader__align0[4];
|
|
|
|
/* Number of column definitions. */
|
|
|
|
casio_uint32_t casio_mcs_spreadsheet_subheader_defs_size;
|
|
|
|
/* Alignment or magic II? {0, 0, 0, 0} */
|
|
|
|
casio_uint8_t casio_mcs_spreadsheet_subheader__align1[4];
|
|
} casio_mcs_spreadsheet_subheader_t;
|
|
|
|
/* The column definition table is the main definition. It contains the row
|
|
* directory, which is a 80-bytes long bitfield indicating if cells are empty
|
|
* or not, and the list of non-empty cells.
|
|
*
|
|
* Each cell is a BCD structure (the real part of the number). Numbers in
|
|
* spreadsheets can't have imaginary parts.
|
|
*
|
|
* The column directory is just a list of 4-bytes sizes of each column,
|
|
* counting the row directory and the cells. It's easier to naviguate to
|
|
* a column quicker. */
|
|
|
|
CASIO_END_NAMESPACE
|
|
|
|
# pragma pack()
|
|
#endif /* LIBCASIO_FORMAT_MCS_SPREADSHEET_H */
|