102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Gilles Roux
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* 2003 Garrett Derner
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* 2010 Yoshihisa Uchida
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef PLUGIN_TEXT_VIEWER_TEXT_READER_H
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#define PLUGIN_TEXT_VIEWER_TEXT_READER_H
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/*
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* initialize the text reader module
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*
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* [In] buf
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* the start pointer of the buffer
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*
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* [In] size
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* enabled buffer size
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*
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* [Out] used_size
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* the size of the buffer which the pager uses
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*
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* return
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* true initialize success
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* false initialize failure
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*/
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bool tv_init_text_reader(unsigned char *buf, size_t bufsize, size_t *used_size);
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/* finalize the text reader module */
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void tv_finalize_text_reader(void);
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/*
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* set the read conditions
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*
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* [In] blocks
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* block count
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*
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* [In] width
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* block width
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*/
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void tv_set_read_conditions(int blocks, int width);
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/*
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* return the total text size
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*
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* return
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* the total text size
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*/
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off_t tv_get_total_text_size(void);
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/*
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* get the text of the next line
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*
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* [Out] buf
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* the pointer of the pointer which store the text
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*
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* return
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* true next line exists
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* false next line does not exist
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*/
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bool tv_get_next_line(const unsigned char **buf);
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/*
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* start to read lines
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*
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* [In] block
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* the index of block to read text
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*
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* [In] is_multi
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* true read 2 blocks
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* false read 1 block
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*/
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void tv_read_start(int block, bool is_multi);
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/*
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* end to read lines
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*
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* return
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* read text size
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*/
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int tv_read_end(void);
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/* seek to the head of the file */
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void tv_seek_top(void);
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#endif
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