1 files changed, 147 insertions, 0 deletions
diff --git a/widget_timer.c b/widget_timer.c
new file mode 100644
index 0000000..4ba243e
--- /dev/null
+++ b/widget_timer.c
@@ -0,0 +1,147 @@
+/* $Id: widget_timer.c 1106 2010-02-07 14:03:46Z mzuther $
+ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/widget_timer.c $
+ *
+ * timer widget handling
+ *
+ * Copyright (C) 2006 Michael Reinelt <michael@reinelt.co.at>
+ * Copyright (C) 2006 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_Timer
+ *   the timer widget
+ *
+ */
+
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "qprintf.h"
+#include "property.h"
+#include "timer_group.h"
+#include "widget.h"
+#include "widget_timer.h"
+
+#ifdef WITH_DMALLOC
+#include <dmalloc.h>
+#endif
+
+void widget_timer_update(void *Self)
+{
+    WIDGET *W = (WIDGET *) Self;
+    WIDGET_TIMER *Timer = W->data;
+    int update, active;
+
+    /* evaluate expressions */
+    property_eval(&Timer->update);
+    property_eval(&Timer->active);
+
+    /* get new update interval */
+    update = P2N(&Timer->update);
+    if (update < 10)
+	update = 10;
+
+    /* finally, fire it! */
+    active = P2N(&Timer->active);
+    if (active > 0) {
+	property_eval(&Timer->expression);
+    }
+
+    /* add a new one-shot timer */
+    timer_add_widget(widget_timer_update, Self, update, 1);
+}
+
+
+
+int widget_timer_init(WIDGET * Self)
+{
+    char *section;
+    WIDGET_TIMER *Timer;
+
+    /* prepare config section */
+    /* strlen("Widget:")=7 */
+    section = malloc(strlen(Self->name) + 8);
+    strcpy(section, "Widget:");
+    strcat(section, Self->name);
+
+    Timer = malloc(sizeof(WIDGET_TIMER));
+    memset(Timer, 0, sizeof(WIDGET_TIMER));
+
+    /* load properties */
+    property_load(section, "expression", NULL, &Timer->expression);
+    property_load(section, "update", "100", &Timer->update);
+    property_load(section, "active", "1", &Timer->active);
+
+    free(section);
+    Self->data = Timer;
+    Self->x2 = NOCOORD;
+    Self->y2 = NOCOORD;
+
+    /* just do it! */
+    widget_timer_update(Self);
+
+    return 0;
+}
+
+
+int widget_timer_quit(WIDGET * Self)
+{
+    if (Self) {
+	/* do not deallocate child widget! */
+	if (Self->parent == NULL) {
+	    if (Self->data) {
+		WIDGET_TIMER *Timer = Self->data;
+		property_free(&Timer->expression);
+		property_free(&Timer->update);
+		property_free(&Timer->active);
+		free(Self->data);
+		Self->data = NULL;
+	    }
+	}
+    }
+
+    return 0;
+
+}
+
+
+int widget_timer_register(void)
+{
+    WIDGET_CLASS wc;
+    wc = Widget_Timer;
+    widget_register(&wc);
+    return 0;
+}
+
+
+WIDGET_CLASS Widget_Timer = {
+    .name = "timer",
+    .type = WIDGET_TYPE_TIMER,
+    .init = widget_timer_init,
+    .draw = NULL,
+    .quit = widget_timer_quit,
+};