--- /dev/null
+// timer.c
+//
+// Copyright 2009 Michael Cronenworth <mike@cchtml.com>
+//
+// 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 of the License, 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., 51 Franklin Street, Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+#include <string.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <gtk/gtk.h>
+#include <libosso.h>
+
+#include "stopish.h"
+
+static long int timerStartTime = 0;
+static long int timerSave = 0;
+
+
+//
+// Timer callback
+//
+gint stopish_timeout_cb( gpointer data )
+{
+ GtkLabel *timerLabel;
+ char formatBuffer[64];
+ char *tempString;
+
+ if ( !data )
+ return -1;
+
+ timerLabel = ( GtkLabel * ) data;
+
+ // print to screen
+ tempString = stopish_get_time_string( );
+ sprintf( formatBuffer, "<span font_family=\"monospace\" size=\"xx-large\">%s</span>", tempString );
+ free( tempString );
+ gtk_label_set_markup( GTK_LABEL( timerLabel ), formatBuffer );
+
+ return TRUE;
+}
+
+
+char *stopish_get_time_string( void )
+{
+ char *timeBuffer;
+ long int currentTime;
+ int h, m, s, ss;
+
+ // get current time
+ currentTime = stopish_current_time( );
+
+ // calculate time format
+ ss = ( currentTime - timerStartTime ) % 10;
+ s = ( currentTime - timerStartTime ) / 10;
+ m = s / 60;
+ s = s % 60;
+ h = m / 60;
+ m = m % 60;
+
+ // rollover once we hit one day
+ if ( h > 24 ) {
+ stopish_set_time_start( stopish_current_time( ) );
+ h = m = s = ss = 0;
+ }
+
+ timeBuffer = malloc( 64 );
+ sprintf( timeBuffer, "%.02d:%.02d:%.02d.%.1d",
+ h, m, s, ss );
+
+ return timeBuffer;
+}
+
+
+void stopish_set_time_start( long int time )
+{
+ // reset timer to user-inputted time
+ timerStartTime = time;
+ timerSave = 0;
+}
+
+
+void stopish_timer_resume( void )
+{
+ timerStartTime = stopish_current_time( );
+ timerStartTime -= timerSave;
+}
+
+
+void stopish_timer_save( void )
+{
+ // save time counter
+ timerSave = stopish_current_time( ) - timerStartTime;
+}
+
+
+long int stopish_current_time( void )
+{
+ struct timeval tv;
+ int s, us;
+
+ gettimeofday( &tv, NULL );
+ s = tv.tv_sec % 100000;
+ us = tv.tv_usec / 100000;
+
+ return ( s * 10 + us );
+}