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 * Copyright (C) 2007 Intel Corporation
 * Author:  Xu Bo <bo.b.xu@intel.com>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * version 2.1 as published by the Free Software Foundation.
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA

#include <gtk/gtk.h>
#include <glib-object.h>
#include <libhildondesktop/libhildondesktop.h>
#include <time.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <string.h>
#include "clock-plugin.h"

#include <errno.h>
#include <sys/resource.h>

#define THEME_DIR "/usr/share/themes/mobilebasic"
#define BTN_HEIGHT  52
#define BTN_WIDTH_FOR_800 256
#define BTN_WIDTH_FOR_1024 320 
#define MAX_READ_SIZE 50
#define CONFIG_FILE "/etc/clock-plugin.conf"
#define DEFAULT_TIME_FORMAT "\%a \%b \%d, \%r\%p"
#define CLOCK_APPLET_CMD  "moblin-applets time"
//#define CLOCK_APPLET_CMD  "mousepad /etc/apt/sources.list"


static void clock_finalize (GObject *object);

static gboolean clock_update_time (gpointer data)
      ClockPlugin *clock_plugin = (ClockPlugin *)data;
      struct timeval  time_val;
      struct tm      *tm_time;
      gchar          *tz_str;
      gchar       time_str[60];
      //reset timezone
      tz_str = g_strdup (g_getenv ("TZ"));
      g_unsetenv ("TZ");
      if (tz_str)
            g_setenv ("TZ", tz_str, FALSE);
                  g_free (tz_str);
      gettimeofday (&time_val, NULL);
      tm_time = localtime (&time_val.tv_sec);
      strftime (time_str, G_N_ELEMENTS (time_str), clock_plugin->time_format, tm_time);

      gtk_label_set_text((GtkLabel*)clock_plugin->time_lb, time_str);

      if (clock_plugin->timeout_id)
            g_source_remove (clock_plugin->timeout_id);
      //update per second
      clock_plugin->timeout_id = g_timeout_add (1000,
      return FALSE;

// Start the time/date edit dialog
static void on_clicked (GtkWidget *button, const gchar *app)
      gchar *program = NULL;
      GError *error = NULL;
      gint argc;
      gchar **argv;
      GPid child_pid;
      gchar *space;

      space = strchr(app, ' ');
      if (space) {
            gchar *cmd = g_strdup (app);
            cmd[space - app] = 0;
            gchar *exc = g_find_program_in_path (cmd);
            program = g_strconcat (exc, space, NULL);
            g_free (exc);
            g_free (cmd);
      } else {
            program = g_find_program_in_path (app);
      if (!program) {
            g_warning("Attempt to exec invalid entry: %s", app);
      if (g_shell_parse_argv (program, &argc, &argv, &error)) {
            g_spawn_async ( NULL,              //Child's current working directory or NULL to use parent's
                        argv, //Child's argument vector. [0] is the path of the program to execute
                        NULL,             //Child's environment or NULL to inherit parent's
                        (GSpawnFlags)0,   //flags from GSpawnFlags
                        NULL,             //Function to run in the child just before exec
                        NULL,             //User data for child_setup
                        &child_pid,       //Return location for child process ID or NULL
                        &error);          //Return location for error
      if (error) {
            g_warning ("Date/time dialog could not be started. (Error: %s)",
            g_clear_error (&error);
      } else {
            setpriority (PRIO_PROCESS, child_pid, 0);

static void clock_plugin_init (ClockPlugin *clock_plugin)
      GtkWidget *btn;
      GtkWidget *time_lb;
//    GdkColor  ft_color;
      //for reading the configure file
      struct stat config_stat;
      FILE *fd_config;
      gchar readbuf[MAX_READ_SIZE];
      gchar *param;

      gboolean format_inited = 0;
      btn = clock_plugin->btn = gtk_button_new();

      //size of clock depending on size of window (1024= 320, 800 = 256)
      int scn_width = 800;
      GdkScreen *screen = gtk_widget_get_screen ((GtkWidget*)clock_plugin);
      if (screen != NULL) {
         scn_width = gdk_screen_get_width(screen);
      gtk_widget_set_size_request ((GtkWidget*)clock_plugin, (scn_width == 1024 ? BTN_WIDTH_FOR_1024 : BTN_WIDTH_FOR_800), BTN_HEIGHT);

      time_lb = clock_plugin->time_lb = gtk_label_new("");

      //set the font size smaller
      PangoAttribute *pa_size = pango_attr_size_new (14000);
      pa_size->start_index = 0;
      pa_size->end_index = -1;
      PangoAttribute *pa_font = pango_attr_family_new ("Sans");
      pa_font->start_index = 0;
      pa_font->end_index = -1;
      PangoAttribute *pa_color = pango_attr_foreground_new (0xE2E1,0xE2E1,0xE2E1);
      pa_color->start_index = 0;
      pa_color->end_index = -1;
      PangoAttrList *pl = pango_attr_list_new();

      gtk_label_set_attributes ((GtkLabel*)time_lb, pl);
      pango_attr_list_unref (pl);

      //set color (note: this causes the color to change when you hovered over it)
      //gdk_color_parse("white", &ft_color);
      //gtk_widget_modify_fg(clock_plugin->time_lb, GTK_STATE_NORMAL, &ft_color);

      //add time_lb
      gtk_container_add (GTK_CONTAINER (btn), time_lb);
      gtk_widget_show_all (btn);
      gtk_container_add (GTK_CONTAINER (clock_plugin), btn);

      //init time format
      if (stat(CONFIG_FILE, &config_stat) < 0) {
            //no config file, use default format
            strcpy(clock_plugin->time_format, DEFAULT_TIME_FORMAT);
      else {
            fd_config = fopen(CONFIG_FILE,"r");
            while (fgets(readbuf, MAX_READ_SIZE, fd_config) != NULL) {
                  //should have a "Format" field
                      if (strncmp(readbuf, "Format:", 7) == 0) {
                        //sscanf(readbuf + 7, "%s", parambuf);
                          param = readbuf+7;
                        g_print ("*******\n\n\nClock param: %s\n\n\n******", param);
                        if(strncmp(param, "Simple", 6) == 0) {
                              //use simple format
                              strcpy(clock_plugin->time_format,"\%T \%p");
                        } else if(strncmp(param, "Full", 4) == 0) {
                              //use full format, default format
                              strcpy(clock_plugin->time_format,"\%a \%b \%d, \%R \%p");
                        } else {
                              //assume correct format was given (e.g. %A %B %D )
                              strncpy(clock_plugin->time_format, param, strlen(param)-1);
                              //strip extra "0" and lower am/pm
                        format_inited = 1;
                        break;  //found format, that's all we need
            //if no "Format" field
            if (format_inited == 0) {
                  //use a default format
                  strcpy(clock_plugin->time_format, DEFAULT_TIME_FORMAT);

      //when clicked, launch time/date setting
      g_signal_connect (btn, "clicked", 
                    G_CALLBACK (on_clicked), CLOCK_APPLET_CMD);

static void clock_plugin_class_init (ClockPluginClass *class)
        GObjectClass   *object_class = G_OBJECT_CLASS (class);
        object_class->finalize    = clock_finalize;

static void clock_finalize (GObject *object)
      ClockPlugin *clock_plugin = CLOCK_PLUGIN (object);    
      if (clock_plugin->timeout_id)
            g_source_remove (clock_plugin->timeout_id);
      G_OBJECT_CLASS (clock_plugin_parent_class)->finalize (object);

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