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/* $Id: drv_generic_text.h,v 1.8 2004/03/19 09:17:46 reinelt Exp $
*
* generic driver helper for text-based displays
*
* Copyright 1999, 2000 Michael Reinelt <reinelt@eunet.at>
* Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux 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, or (at your option)
* any later version.
*
* LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: drv_generic_text.h,v $
* Revision 1.8 2004/03/19 09:17:46 reinelt
*
* removed the extra 'goto' function, row and col are additional parameters
* of the write() function now.
*
* Revision 1.7 2004/02/18 06:39:20 reinelt
* T6963 driver for graphic displays finished
*
* Revision 1.6 2004/02/15 21:43:43 reinelt
* T6963 driver nearly finished
* framework for graphic displays done
* i2c_sensors patch from Xavier
* some more old generation files removed
*
* Revision 1.5 2004/02/14 11:56:17 reinelt
* M50530 driver ported
* changed lots of 'char' to 'unsigned char'
*
* Revision 1.4 2004/01/23 07:04:24 reinelt
* icons finished!
*
* Revision 1.3 2004/01/23 04:53:55 reinelt
* icon widget added (not finished yet!)
*
* Revision 1.2 2004/01/22 07:57:45 reinelt
* several bugs fixed where segfaulting on layout>display
* Crystalfontz driver optimized, 632 display already works
*
* Revision 1.1 2004/01/20 05:36:59 reinelt
* moved text-display-specific stuff to drv_generic_text
* moved all the bar stuff from drv_generic_bar to generic_text
*
*/
/*
*
* exported fuctions:
*
* Fixme: document me!
*
*/
#ifndef _DRV_GENERIC_TEXT_H_
#define _DRV_GENERIC_TEXT_H_
#include <termios.h>
#include "widget.h"
extern int DROWS, DCOLS; // display size
extern int LROWS, LCOLS; // layout size
extern int XRES, YRES; // pixel width/height of one char
extern int GOTO_COST; // number of bytes a goto command requires
extern int CHARS, CHAR0; // number of user-defineable characters, ASCII of first char
extern int ICONS; // number of user-defineable characters reserved for icons
// these functions must be implemented by the real driver
void (*drv_generic_text_real_write)(int row, int col, unsigned char *data, int len);
void (*drv_generic_text_real_defchar)(int ascii, unsigned char *buffer);
// generic functions and widget callbacks
int drv_generic_text_init (char *section, char *driver);
int drv_generic_text_draw (WIDGET *W);
int drv_generic_text_icon_init (void);
int drv_generic_text_icon_draw (WIDGET *W);
int drv_generic_text_bar_init (void);
void drv_generic_text_bar_add_segment (int val1, int val2, DIRECTION dir, int ascii);
int drv_generic_text_bar_draw (WIDGET *W);
int drv_generic_text_quit (void);
#endif
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