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/* genmon_priv.c -- Generic monitor plugin for fbpanel
*
* Copyright (C) 2007 Davide Truffa <davide@catoblepa.org>
*
* This plugin 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; version 2 dated June, 1991.
*
* It 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.
*/
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "panel.h"
#include "misc.h"
#include "plugin.h"
//#define DEBUG
#include "dbg.h"
#define FMT "<span size='%s' foreground='%s'>%s</span>"
typedef struct {
plugin_instance plugin;
int time;
int timer;
int max_text_len;
int allow_pango_markup;
char *command;
char *textsize;
char *textcolor;
GtkWidget *main;
} genmon_priv;
static int
text_update(genmon_priv *gm)
{
FILE *fp;
char *text;
int text_len;
char *markup;
int len;
ENTER;
fp = popen(gm->command, "r");
/* allow for multi-byte characters and a null-terminator */
text_len = (4 * gm->max_text_len) + 1;
text = malloc(text_len);
if (text == NULL) {
/* ignore for now; try again later */
RET(TRUE);
}
/* Ensure null-termination even if read fails */
text[0] = 0;
if (fgets(text, text_len, fp));
pclose(fp);
len = strlen(text) - 1;
if (len >= 0) {
if (text[len] == '\n')
text[len] = 0;
if (gm->allow_pango_markup) {
gtk_label_set_markup (GTK_LABEL(gm->main), text);
}
else {
markup = g_markup_printf_escaped(FMT, gm->textsize, gm->textcolor,
text);
gtk_label_set_markup (GTK_LABEL(gm->main), markup);
g_free(markup);
}
}
free(text);
RET(TRUE);
}
static void
genmon_destructor(plugin_instance *p)
{
genmon_priv *gm = (genmon_priv *) p;
ENTER;
if (gm->timer) {
g_source_remove(gm->timer);
}
RET();
}
static int
genmon_constructor(plugin_instance *p)
{
genmon_priv *gm;
ENTER;
gm = (genmon_priv *) p;
gm->command = "date +%R";
gm->time = 1;
gm->textsize = "medium";
gm->textcolor = "darkblue";
gm->max_text_len = 30;
gm->allow_pango_markup = 0;
XCG(p->xc, "Command", &gm->command, str);
XCG(p->xc, "TextSize", &gm->textsize, str);
XCG(p->xc, "TextColor", &gm->textcolor, str);
XCG(p->xc, "PollingTime", &gm->time, int);
XCG(p->xc, "MaxTextLength", &gm->max_text_len, int);
XCG(p->xc, "AllowPangoMarkup", &gm->allow_pango_markup, int);
gm->main = gtk_label_new(NULL);
gtk_label_set_max_width_chars(GTK_LABEL(gm->main), gm->max_text_len);
text_update(gm);
gtk_container_set_border_width (GTK_CONTAINER (p->pwid), 1);
gtk_container_add(GTK_CONTAINER(p->pwid), gm->main);
gtk_widget_show_all(p->pwid);
gm->timer = g_timeout_add((guint) gm->time * 1000,
(GSourceFunc) text_update, (gpointer) gm);
RET(1);
}
static plugin_class class = {
.count = 0,
.type = "genmon",
.name = "Generic Monitor",
.version = "0.3",
.description = "Display the output of a program/script into the panel",
.priv_size = sizeof(genmon_priv),
.constructor = genmon_constructor,
.destructor = genmon_destructor,
};
static plugin_class *class_ptr = (plugin_class *) &class;
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