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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Gilles Roux
* 2003 Garrett Derner
* 2010 Yoshihisa Uchida
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef PLUGIN_TEXT_VIEWER_TEXT_READER_H
#define PLUGIN_TEXT_VIEWER_TEXT_READER_H
/*
* initialize the text reader module
*
* [In/Out] buf
* the start pointer of the buffer
*
* [In/Out] size
* enabled buffer size
*
* return
* true initialize success
* false initialize failure
*/
bool tv_init_text_reader(unsigned char **buf, size_t *bufsize);
/* finalize the text reader module */
void tv_finalize_text_reader(void);
/*
* set the read conditions
*
* [In] blocks
* block count
*
* [In] width
* block width
*/
void tv_set_read_conditions(int blocks, int width);
/*
* return the total text size
*
* return
* the total text size
*/
off_t tv_get_total_text_size(void);
/*
* get the text of the next line
*
* [Out] buf
* the pointer of the pointer which store the text
*
* return
* true next line exists
* false next line does not exist
*/
bool tv_get_next_line(const unsigned char **buf);
/*
* start to read lines
*
* [In] block
* the index of block to read text
*
* [In] is_multi
* true read 2 blocks
* false read 1 block
*/
void tv_read_start(int block, bool is_multi);
/*
* end to read lines
*
* return
* read text size
*/
int tv_read_end(void);
/* seek to the head of the file */
void tv_seek_top(void);
#endif
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