~siretart/lcd4linux/debian

/* $Id: plugin_test.c 840 2007-09-09 12:17:42Z michael $

 * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/plugin_test.c $

*

* Handy functions for testing displays and debugging code.

*

* Copyright (C) 2004 Andy Baxter.

*

* Based on sample plugin which is

* Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at>

* Copyright (C) 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.

*

*/

int plugin_init_test(void);

#include "config.h"

#include <stdlib.h>

#include <string.h>

#include <math.h>

#include <ctype.h>

#include "debug.h"

#include "plugin.h"

#ifdef WITH_DMALLOC

#include <dmalloc.h>

#endif

/* used for testing bars - keeps values for a series of 10 bars,

 * which are incremented and decremented between 0 and rmax by

 * amount rdelta every time they are read. Starting value is rstart.

 * rbar gives the number of the test bar. 

 */

static void my_test_bar(RESULT * result, RESULT * rbar, RESULT * rmax, RESULT * rstart, RESULT * rdelta)

{

    static double values[10] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };

    static double deltas[10];

    int bar;

    double max, delta, value;

    max = R2N(rmax);

    delta = R2N(rdelta);

    /* the maths is just to stop double rounding errors and bad values. */

    bar = ((int) floor(R2N(rbar) + 0.1)) % 10;

    if (fabs(delta) > 0.1) {

	/* don't move or init the bar if delta=0 (the widget is only browsing) */

	if (values[bar] == -1) {

	    /* first time called. */

	    values[bar] = R2N(rstart);

	    deltas[bar] = delta;

	};

	values[bar] += deltas[bar];

    };

    if (values[bar] < 0 || values[bar] > max) {

	/* turn around. */

	deltas[bar] = -deltas[bar];

	values[bar] += deltas[bar];

    };

    value = values[bar];

    SetResult(&result, R_NUMBER, &value);

}

/* like above, but just switches a value between 1 and -1. Can use to test

 * visibility of icons. 

 */

static void my_test_onoff(RESULT * result, RESULT * arg1)

{

    static int on[10] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };

    int i;

    double val;

    i = ((int) floor(R2N(arg1) + 0.1)) % 10;

    on[i] = -on[i];

    val = (double) on[i];

    SetResult(&result, R_NUMBER, &val);

}

int plugin_init_test(void)

{

    AddFunction("test::bar", 4, my_test_bar);

    AddFunction("test::onoff", 1, my_test_onoff);

    return 0;

}

void plugin_exit_test(void)

{

    /* empty */

}