/* $Id$ * $URL$ * * simple but quick snprintf() replacement * * Copyright (C) 2004 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * derived from a patch from Martin Hejl which is * Copyright (C) 2003 Martin Hejl (martin@hejl.de) * * 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. * */ /* * exported functions: * * int qprintf(char *str, size_t size, const char *format, ...) * works like snprintf(), but format only knows about %d and %s */ #include "config.h" #include #include #include #include static char *itoa(char *buffer, const size_t size, int value) { char *p; int sign; /* sanity checks */ if (buffer == NULL || size < 2) return (NULL); /* remember sign of value */ sign = 0; if (value < 0) { sign = 1; value = -value; } /* p points to last char */ p = buffer + size - 1; /* set terminating zero */ *p = '\0'; do { *--p = value % 10 + '0'; value = value / 10; } while (value != 0 && p > buffer); if (sign && p > buffer) *--p = '-'; return p; } static char *utoa(char *buffer, const size_t size, unsigned int value) { char *p; /* sanity checks */ if (buffer == NULL || size < 2) return (NULL); /* p points to last char */ p = buffer + size - 1; /* set terminating zero */ *p = '\0'; do { *--p = value % 10 + '0'; value = value / 10; } while (value != 0 && p > buffer); return p; } static char *utox(char *buffer, const size_t size, unsigned int value) { char *p; int digit; /* sanity checks */ if (buffer == NULL || size < 2) return (NULL); /* p points to last char */ p = buffer + size - 1; /* set terminating zero */ *p = '\0'; do { digit = value % 16; value = value / 16; *--p = (digit < 10 ? '0' : 'a' - 10) + digit; } while (value != 0 && p > buffer); return p; } int qprintf(char *str, const size_t size, const char *format, ...) { va_list ap; const char *src; char *dst; unsigned int len; src = format; dst = str; len = 0; va_start(ap, format); /* use size-1 for terminating zero */ while (len < size - 1) { if (*src == '%') { char buf[12], *s; int d; unsigned int u; switch (*++src) { case 's': src++; s = va_arg(ap, char *); while (len < size - 1 && *s != '\0') { len++; *dst++ = *s++; } break; case 'd': src++; d = va_arg(ap, int); s = itoa(buf, sizeof(buf), d); while (len < size && *s != '\0') { len++; *dst++ = *s++; } break; case 'u': src++; u = va_arg(ap, unsigned int); s = utoa(buf, sizeof(buf), u); while (len < size - 1 && *s != '\0') { len++; *dst++ = *s++; } break; case 'x': src++; u = va_arg(ap, unsigned int); s = utox(buf, sizeof(buf), u); while (len < size - 1 && *s != '\0') { len++; *dst++ = *s++; } break; default: len++; *dst++ = '%'; } } else { len++; *dst++ = *src; if (*src++ == '\0') break; } } va_end(ap); /* enforce terminating zero */ if (len >= size - 1 && *(dst - 1) != '\0') { len++; *dst = '\0'; } /* do not count terminating zero */ return len - 1; } ' href='#n43'>43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 
/* $Id$
 * $URL$
 *
 * 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_group.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(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;
    /* no display dimension */
    Self->x2 = NOCOORD;
    Self->y2 = NOCOORD;

    /* 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,
};
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