rockbox/apps/plugins/text_viewer/tv_window.h
Rafaël Carré 59fd2b24bd FS#11399 by me: fix r26998 for text_viewer
Restore the old behaviour:

- preferences must be read-write for tv_preferences.c , read-only for
  all other modules -> use pointer to const struct
- init functions must get the plugin buffer + its size as arguments for
  easily adding new functions -> use pointer to buffer pointer and size
  to make allocation easier
- preferences meaning is private to each file and must not be known by
  tv_preferences.c -> move tv_check_header_and_footer() back in
  tv_window.c; also avoid chaining 3 times the callbacks by calling
  tv_set_preferences() only once if more than one preference needs
  changing

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27089 a1c6a512-1295-4272-9138-f99709370657
2010-06-23 13:56:08 +00:00

66 lines
1.9 KiB
C

/***************************************************************************
* __________ __ ___.
* 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_WINDOW_H
#define PLUGIN_TEXT_VIEWER_WINDOW_H
/*
* initialize the window 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_window(unsigned char **buf, size_t *bufsize);
/* finalize the window module */
void tv_finalize_window(void);
/* draw the display */
void tv_draw_window(void);
/* traverse all lines of the current page */
bool tv_traverse_lines(void);
/*
* move to the window
*
* new position
* new window: the current window + window_delta
* new column: the current column + column_delta
*
* [In] window_delta
* variation of the window
*
* [In] column_delta
* variation of the column
*
*/
void tv_move_window(int window_delta, int column_delta);
#endif