/* $Id$
 * $URL$
 *
 * GPO widget handling
 *
 * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
 * Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * 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, or (at your option)
 * any later version.
 *
 * This program 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.
 *
 */

/* 
 * exported functions:
 *
 * WIDGET_CLASS Widget_GPO
 *   the GPO widget
 *
 */


#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>

#include "debug.h"
#include "cfg.h"
#include "property.h"
#include "timer.h"
#include "widget.h"
#include "widget_gpo.h"

#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif


void widget_gpo_update(void *Self)
{
    WIDGET *W = (WIDGET *) Self;
    WIDGET_GPO *GPO = W->data;

    /* evaluate properties */
    property_eval(&GPO->expression);
    property_eval(&GPO->update);

    /* finally, draw it! */
    if (W->class->draw)
	W->class->draw(W);

    /* add a new one-shot timer */
    if (P2N(&GPO->update) > 0) {
	timer_add(widget_gpo_update, Self, P2N(&GPO->update), 1);
    }

}


int widget_gpo_init(WIDGET * Self)
{
    char *section;
    WIDGET_GPO *GPO;

    /* prepare config section */
    /* strlen("Widget:")=7 */
    section = malloc(strlen(Self->name) + 8);
    strcpy(section, "Widget:");
    strcat(section, Self->name);

    GPO = malloc(sizeof(WIDGET_GPO));
    memset(GPO, 0, sizeof(WIDGET_GPO));

    /* load properties */
    property_load(section, "expression", NULL, &GPO->expression);
    property_load(section, "update", "1000", &GPO->update);

    /* sanity checks */
    if (!property_valid(&GPO->expression)) {
	error("Warning: widget %s has no expression", section);
    }

    free(section);
    Self->data = GPO;

    /* fire it the first time */
    widget_gpo_update(Self);

    return 0;
}


int widget_gpo_quit(WIDGET * Self)
{
    if (Self && Self->data) {
	WIDGET_GPO *GPO = Self->data;
	property_free(&GPO->expression);
	property_free(&GPO->update);
	free(Self->data);
	Self->data = NULL;
    }
    return 0;
}



WIDGET_CLASS Widget_GPO = {
    .name = "gpo",
    .type = WIDGET_TYPE_GPO,
    .init = widget_gpo_init,
    .draw = NULL,
    .quit = widget_gpo_quit,
};
>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2008-12-23 14:55:32 +0000'>2008-12-23</span></td><td><a href='/lcd4linux.git/commit/drv_Crystalfontz.c?id=c881473ad3e54d4f9c149358173b52b3405262c7&amp;follow=1'>keypad bug fixed</a></td><td>michael</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2008-12-23 13:37:07 +0000'>2008-12-23</span></td><td><a href='/lcd4linux.git/commit/drv_generic_parport.c?id=8b185a53fc6c35d570987ab9ff2c194dcaa24cd2&amp;follow=1'>patch from a.nielsen: inverted parport signals, support GPI on HD44780</a></td><td>michael</td><td>2</td><td><span class='deletions'>-24</span>/<span class='insertions'>+89</span></td></tr>
<tr><td><span title='2008-12-23 13:28:14 +0000'>2008-12-23</span></td><td><a href='/lcd4linux.git/commit/drv_LCDLinux.c?id=87b31372d32f6f0a3d90790392b7024823d1cc1e&amp;follow=1'>indent run</a></td><td>michael</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2008-11-25 20:38:34 +0000'>2008-11-25</span></td><td><a href='/lcd4linux.git/commit/drv_LCDLinux.c?id=6ab08ab6c2eb5db99af7d011a9fd8526af3b0aed&amp;follow=1'>fix lcd4linux driver for multible onboard controllers</a></td><td>michux</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2008-11-23 00:20:58 +0000'>2008-11-23</span></td><td><a href='/lcd4linux.git/commit/drivers.m4?id=0c9798c9429cabcded458ba127972ea096e69978&amp;follow=1'>fix automake - check for libftdi</a></td><td>michux</td><td>4</td><td><span class='deletions'>-9</span>/<span class='insertions'>+173</span></td></tr>
<tr><td><span title='2008-11-22 23:46:47 +0000'>2008-11-22</span></td><td><a href='/lcd4linux.git/commit/plugin_button_exec.c?id=5162ea943ae34684aacdb8fe29da91e6a974979e&amp;follow=1'>update button_exec plugin - fix segfault</a></td><td>michux</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2008-11-22 23:34:20 +0000'>2008-11-22</span></td><td><a href='/lcd4linux.git/commit/plugin_fifo.c?id=98870dbee74445b3d7de7468fccdb3ef4d6d2ff2&amp;follow=1'>update fifo plugin - untested</a></td><td>michux</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2008-10-07 19:32:42 +0000'>2008-10-07</span></td><td><a href='/lcd4linux.git/commit/drv_picoLCDGraphic.c?id=3654ca81e0aa3116c24d849336560cc96ff73f11&amp;follow=1'>Replace write to external variable usb_debug by calling usb_set_debug().</a></td><td>bwalle</td><td>7</td><td><span class='deletions'>-16</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2008-10-06 04:29:12 +0000'>2008-10-06</span></td><td><a href='/lcd4linux.git/commit/drv_picoLCD.c?id=a80978985167df7650209888a5a89ea8089c091d&amp;follow=1'>adding GPI to picoLCD for reading button events  by Igor Mammedov &lt;niallain@g...</a></td><td>michael</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+22</span></td></tr>
<tr><td><span title='2008-10-06 04:25:14 +0000'>2008-10-06</span></td><td><a href='/lcd4linux.git/commit/plugin_time.c?id=c43556a211b45fefe29b73d912c7cc6ff6d8bfdf&amp;follow=1'>properties fixed</a></td><td>michael</td><td>11</td><td><span class='deletions'>-3290</span>/<span class='insertions'>+2675</span></td></tr>
<tr><td><span title='2008-10-05 16:57:13 +0000'>2008-10-05</span></td><td><a href='/lcd4linux.git/commit/configure?id=5592dc410563ea62d44ff341a7b12bf564a809f4&amp;follow=1'>Rebuild auto-generated autoconf stuff due to last change in drivers.m4.</a></td><td>bwalle</td><td>3</td><td><span class='deletions'>-2657</span>/<span class='insertions'>+3297</span></td></tr>
<tr><td><span title='2008-10-05 16:55:26 +0000'>2008-10-05</span></td><td><a href='/lcd4linux.git/commit/drivers.m4?id=7e4ae629678f086951b4ae213bc3dc17c04b27ee&amp;follow=1'>Add 'ULA200' driver when --with-drivers=all is specified</a></td><td>bwalle</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2008-09-14 04:00:49 +0000'>2008-09-14</span></td><td><a href='/lcd4linux.git/commit/plugin_time.c?id=7695365a0e6ffada25b74e1ac8fa0a54bc5aa32d&amp;follow=1'>strftime_tz patch from Bernhard Walle</a></td><td>michael</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+11</span></td></tr>
<tr><td><span title='2008-09-08 01:52:03 +0000'>2008-09-08</span></td><td><a href='/lcd4linux.git/commit/plugin_time.c?id=a97c5c7ecd9800e86882af4476e2dc6098b78cfb&amp;follow=1'>strftime_tz() plugin by Bernhard Walle</a></td><td>michael</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+25</span></td></tr>
<tr><td><span title='2008-09-03 03:28:52 +0000'>2008-09-03</span></td><td><a href='/lcd4linux.git/commit/smoketest.sh?id=e6f31f6b7949440cd735d0184c846aa2a3330f23&amp;follow=1'>ULA200 driver by Bernhard Walle</a></td><td>michael</td><td>7</td><td><span class='deletions'>-2</span>/<span class='insertions'>+825</span></td></tr>
<tr><td><span title='2008-09-03 03:26:29 +0000'>2008-09-03</span></td><td><a href='/lcd4linux.git/commit/drv_D4D.c?id=1285008c5f75c28d6304ba984c432992c450ba3a&amp;follow=1'>indent</a></td><td>michael</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2008-08-31 18:27:53 +0000'>2008-08-31</span></td><td><a href='/lcd4linux.git/commit/drv_generic_serial.c?id=02b0138a4213eff843990f96531cf31918d6dfe2&amp;follow=1'>Increased the maximum bps to 230400, if defined in &lt;termios.h&gt;.</a></td><td>sonic74</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2008-08-27 22:32:47 +0000'>2008-08-27</span></td><td><a href='/lcd4linux.git/commit/drv_D4D.c?id=9e0932674b6e85098e3902f4c3083e80c9590be5&amp;follow=1'>git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@889 3ae390bd-cb1e-0410-...</a></td><td>sonic74</td><td>1</td><td><span class='deletions'>-18</span>/<span class='insertions'>+11</span></td></tr>
<tr><td><span title='2008-08-27 03:30:06 +0000'>2008-08-27</span></td><td><a href='/lcd4linux.git/commit/drv_D4D.c?id=b645e0908429a1ed5c61f2708931bfa026254d52&amp;follow=1'>D4D updates by Sven</a></td><td>michael</td><td>1</td><td><span class='deletions'>-38</span>/<span class='insertions'>+60</span></td></tr>
<tr><td><span title='2008-08-03 03:10:49 +0000'>2008-08-03</span></td><td><a href='/lcd4linux.git/commit/smoketest.sh?id=38367abf672c32015cacd8b469c390a048f2c97f&amp;follow=1'>driver for 4D Systems serial displays by Sven Killig</a></td><td>michael</td><td>9</td><td><span class='deletions'>-45</span>/<span class='insertions'>+846</span></td></tr>
<tr><td><span title='2008-08-03 02:44:22 +0000'>2008-08-03</span></td><td><a href='/lcd4linux.git/commit/drv_IRLCD.c?id=e91cbd072ab678b68095a5e81fc37df6ae44c975&amp;follow=1'>signed/unsigned mismatch</a></td><td>michael</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2008-07-26 14:41:51 +0000'>2008-07-26</span></td><td><a href='/lcd4linux.git/commit/plugin_mpd.c?id=58d42c80d71e628ddf8fc32cae477f17cb3a3f25&amp;follow=1'>added command functions</a></td><td>michux</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+130</span></td></tr>
<tr><td><span title='2008-07-15 10:22:19 +0000'>2008-07-15</span></td><td><a href='/lcd4linux.git/commit/svn_version.h?id=b243fddf0754e8d193febc0598941fd1638ff33b&amp;follow=1'>added IRLCD driver by Jean-Philippe Civade</a></td><td>michael</td><td>10</td><td><span class='deletions'>-5</span>/<span class='insertions'>+467</span></td></tr>
<tr><td><span title='2008-07-15 09:55:18 +0000'>2008-07-15</span></td><td><a href='/lcd4linux.git/commit/mkinstalldirs?id=38a69aee81b48e2df7714310c39b5cdf171b9123&amp;follow=1'>'autoreconf -f -i' run &amp; config.rpath added</a></td><td>michael</td><td>8</td><td><span class='deletions'>-370</span>/<span class='insertions'>+1617</span></td></tr>