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maemo-ui/src/mmyth_epg_grid_widget.c
author rosfran
Mon Oct 23 20:02:26 2006 +0100 (2006-10-23)
branchtrunk
changeset 43 c9e53d7250f8
child 208 c3c073032757
permissions -rw-r--r--
[svn r44] Some fixes. 
     1 #include <gtk/gtksignal.h>

     2 #include <gdk/gdkevents.h>

     3 #include <gdk/gdkkeysyms.h>

     4 

     5 #include "mmyth_uicommon.h"

     6 #include "mmyth_epg_grid_widget.h"

     7 

     8 #include "gmyth_util.h" 

     9 #include "gmyth_epg.h"

    10 

    11 #define PIXELS_HOUR 105

    12 #define PROGRAM_SEPARATION 2

    13 

    14 enum {

    15   SELECTION_UPDATED_SIGNAL,

    16   LAST_SIGNAL

    17 };

    18 

    19 struct _MMythEpgGridWidgetPrivate {

    20     /* private widget components */

    21     GtkWidget *epg_channels_vbox;

    22     GtkWidget *epg_programs_vbox;

    23  

    24     GHashTable *service_model_hash;

    25     

    26     /* guidegrid attributes */

    27     gboolean show_favorites;

    28     gint current_start_channel_id;

    29     

    30     time_t current_start_time;

    31     time_t current_end_time;

    32 

    33     guint selected_channel_index;

    34     

    35     /* GList of ProgramInfo for each Channel */

    36     GList * program_list[MAX_DISPLAY_CHANS];

    37     GList * channel_list;

    38     

    39     GMythEPG *mmyth_epg;

    40     

    41     gint DISPLAY_CHANS;

    42 };

    43 

    44 static void mmyth_epg_grid_widget_class_init          (MMythEpgGridWidgetClass *klass);

    45 static void mmyth_epg_grid_widget_init                (MMythEpgGridWidget *object);

    46 static void mmyth_epg_grid_widget_private_init        (MMythEpgGridWidgetPrivate *private);

    47 static void mmyth_epg_grid_widget_mount_services      (MMythEpgGridWidget *object, 

    48                                                        int start_time, int end_time);

    49 static void mmyth_epg_grid_widget_mount_header        (MMythEpgGridWidget *object);

    50 static void mmyth_epg_grid_widget_clicked             (GtkWidget* widget, 

    51                                                        GdkEventExpose *event, 

    52                                                        gpointer data);

    53 static GtkWidget *create_event_box_lbl                (gchar *str, int width, 

    54                                                        const GdkColor *bg_color, 

    55                                                        const GdkColor *fg_color);

    56 

    57 static void mmyth_epg_grid_widget_fill_programinfos(MMythEpgGridWidgetPrivate *private);

    58 static void mmyth_epg_grid_widget_fill_program_row_infos(

    59                     MMythEpgGridWidgetPrivate *private, 

    60                     unsigned int chanNum, unsigned int row);

    61 

    62 static gint mmyth_epg_grid_widget_signals[LAST_SIGNAL] = { 0 };

    63 

    64 G_DEFINE_TYPE(MMythEpgGridWidget, mmyth_epg_grid_widget, GTK_TYPE_EVENT_BOX)

    65     

    66 static void

    67 mmyth_epg_grid_widget_class_init (MMythEpgGridWidgetClass *klass)

    68 {

    69   g_type_class_add_private (klass, sizeof (MMythEpgGridWidgetPrivate));

    70   

    71   mmyth_epg_grid_widget_signals[SELECTION_UPDATED_SIGNAL] = g_signal_new (

    72                      "selection_updated",

    73 					 G_TYPE_FROM_CLASS(klass), 

    74 					 G_SIGNAL_RUN_FIRST,

    75 					 0,

    76                      NULL,

    77                      NULL,

    78 					 g_cclosure_marshal_VOID__POINTER, 

    79                      G_TYPE_NONE, 

    80                      1,

    81                      G_TYPE_POINTER);

    82 }

    83 

    84 static void 

    85 mmyth_epg_grid_widget_private_init (MMythEpgGridWidgetPrivate *private)

    86 {

    87     time_t cur_time;

    88     

    89     g_return_if_fail(private != NULL);     

    90 

    91     private->epg_channels_vbox   = NULL;

    92     private->epg_programs_vbox   = NULL;

    93     private->service_model_hash  = NULL;

    94 

    95     private->show_favorites = FALSE;

    96     private->current_start_channel_id = -1;

    97 

    98     /* Selected the first diplayable channel initially */

    99     private->selected_channel_index = 0;

   100         

   101     /* TODO fix the current start/end time */

   102     private->current_start_time = time(&cur_time);

   103     private->current_end_time = time(&cur_time) + 10800;   

   104     

   105     private->DISPLAY_CHANS = MAX_DISPLAY_CHANS;

   106     

   107     // TODO: Close the epg and unref it in dispose call

   108     private->mmyth_epg = gmyth_epg_new ();

   109     if (!gmyth_epg_connect (private->mmyth_epg)) {

   110     	g_warning ("[%s] Could not connect mysql handler to db", __FUNCTION__);

   111     	g_object_unref (private->mmyth_epg);

   112     	private->mmyth_epg = NULL;

   113     }

   114 }

   115 

   116 static void

   117 mmyth_epg_grid_widget_init (MMythEpgGridWidget *mmyth_epg_grid_widget)

   118 {

   119     MMythEpgGridWidgetPrivate *private = 

   120         MMYTH_EPG_GRID_WIDGET_GET_PRIVATE(mmyth_epg_grid_widget);

   121     

   122     /* init private fields */

   123     mmyth_epg_grid_widget_private_init(private);

   124 

   125     mmyth_epg_grid_widget->epg_view_model      = NULL;

   126     mmyth_epg_grid_widget->selected_grid_item  = NULL;

   127 

   128     GtkWidget *epg_event_box = GTK_WIDGET(mmyth_epg_grid_widget);

   129     gtk_widget_modify_bg(epg_event_box, GTK_STATE_NORMAL, &main_bg_color);

   130     gtk_widget_set_size_request (epg_event_box, 0, 125);

   131     

   132     GtkWidget *epg_main_hbox = gtk_hbox_new (FALSE, 10);

   133     gtk_container_set_border_width(GTK_CONTAINER (epg_main_hbox), 10);

   134     

   135     gtk_container_add (GTK_CONTAINER (epg_event_box),

   136                        epg_main_hbox);

   137 		        

   138     /* channels vbox */

   139     GtkWidget *epg_channels_vbox = gtk_vbox_new (FALSE, 3); 

   140     private->epg_channels_vbox = epg_channels_vbox; 

   141 

   142     /* programs vbox */

   143     GtkWidget *epg_programs_vbox = gtk_vbox_new (FALSE, 3);

   144     private->epg_programs_vbox = epg_programs_vbox;

   145     

   146     /* packing start */

   147     gtk_box_pack_start (GTK_BOX (epg_main_hbox),

   148 	                epg_channels_vbox, FALSE, FALSE, 0);

   149     gtk_box_pack_start (GTK_BOX (epg_main_hbox),

   150                         epg_programs_vbox, FALSE, FALSE, 0);

   151 

   152     /* table header (first line) */  

   153     mmyth_epg_grid_widget_mount_header(mmyth_epg_grid_widget);                 

   154     

   155     /* service programs */ 

   156     /* mount service programs with current time */

   157     mmyth_epg_grid_widget_mount_services(mmyth_epg_grid_widget, 

   158                                          private->current_start_time,

   159                                          private->current_end_time);                                           

   160 }

   161 

   162 GtkWidget*

   163 mmyth_epg_grid_widget_new ()

   164 {

   165   return GTK_WIDGET ( gtk_type_new (mmyth_epg_grid_widget_get_type ()));

   166 }

   167 

   168 static void

   169 mmyth_epg_grid_widget_mount_services(MMythEpgGridWidget *mmyth_epg_grid_widget, 

   170                                      int start_time, int end_time)

   171 {

   172     GList *proglist;

   173     GList *channel_list = NULL;

   174     GMythChannelInfo *channel_info;

   175 

   176     int chanid;

   177     MMythEpgGridWidgetPrivate *private = 

   178         MMYTH_EPG_GRID_WIDGET_GET_PRIVATE(mmyth_epg_grid_widget);

   179 	

   180 	// update view_model

   181 	/* FIXME shallow free or recursive? */

   182 	if(mmyth_epg_grid_widget->epg_view_model != NULL) {

   183 		g_list_free(mmyth_epg_grid_widget->epg_view_model);

   184 		mmyth_epg_grid_widget->epg_view_model = NULL;

   185 	}

   186 	

   187 	if(private->service_model_hash != NULL) {

   188 		g_hash_table_destroy(private->service_model_hash);

   189 	}

   190 

   191 	private->service_model_hash = g_hash_table_new(NULL, NULL);

   192 

   193     /* fill program infos from db */

   194     mmyth_epg_grid_widget_fill_programinfos(private);

   195     

   196     channel_list = private->channel_list;

   197  

   198     /* for each channel get_programs() */

   199     for (chanid=0; channel_list &&

   200                    chanid < private->DISPLAY_CHANS; chanid++) {

   201         proglist = (GList *) private->program_list[chanid];        

   202     

   203         channel_info = (GMythChannelInfo *) channel_list->data;

   204         channel_list = g_list_next(channel_list);        

   205 

   206         /* Service Title*/

   207         GString *name = NULL;

   208         if (channel_info->channel_name)

   209         	name = g_string_new (channel_info->channel_name->str);

   210 		

   211 		GdkColor title_bg_color;

   212 		title_bg_color.red = 5000;

   213 		title_bg_color.green = 9000;

   214 		title_bg_color.blue = 40000;        

   215 		

   216 		GdkColor title_fg_color;

   217 		title_fg_color.red = 60000;

   218 		title_fg_color.green = 60000;

   219 		title_fg_color.blue = 60000;        

   220 		

   221 		GtkWidget *event_box_channel = create_event_box_lbl(

   222                                                         name->str, 90, 

   223 									                    &title_bg_color, 

   224 									                    &title_fg_color);

   225 

   226         gtk_box_pack_start (GTK_BOX (private->epg_channels_vbox),

   227 		                    event_box_channel, FALSE, FALSE, 0);

   228 

   229   		GtkWidget *epg_line_hbox = gtk_hbox_new (FALSE, 0);      

   230 

   231 	    GdkColor bg_color;

   232 	    bg_color.red = 5000;

   233 	    bg_color.green = 30000;

   234 	    bg_color.blue = 60000;        

   235 	

   236 	    GdkColor fg_color;

   237 	    fg_color.red = 60000;

   238 	    fg_color.green = 60000;

   239 	    fg_color.blue = 60000;        

   240 		

   241 		/* Content parsing */

   242         GList *epg_grid_list = NULL;

   243 

   244         GMythProgramInfo *proginfo;

   245         int pixel_count = 0;

   246         for (; proglist; proglist = proglist->next) {

   247             proginfo = (GMythProgramInfo *) proglist->data;

   248             

   249             GString *content_name = proginfo->title;

   250                     

   251        	    int initial_time, last_time, duration;

   252 

   253             int schedule_start_time = proginfo->startts;

   254             int schedule_end_time   = proginfo->endts;

   255 

   256 	        initial_time = 

   257                 (schedule_start_time < start_time) ? start_time : schedule_start_time;

   258             last_time = (schedule_end_time > end_time) ? end_time : schedule_end_time;

   259 	        duration = last_time - initial_time;

   260 		    

   261             // Verify program time 

   262             #if 0

   263 			    g_debug ("ServiceID: %d, ScheduleID: %d\n", service->id, schedule->id);

   264                 fprintf (stderr, "program time\nfrom = %d, to = %d\n", 

   265                          schedule->validFrom, schedule->validTo); 

   266                 

   267                 struct tm loctime;

   268     

   269                 /* Convert it to local time representation. */

   270                 if (localtime_r((time_t *)&schedule->validFrom, &loctime) == NULL) {

   271                     g_warning ("localtime_r error in mmyth_epg_grid_widget!\n");

   272                     return NULL;

   273                 }            

   274                 fprintf (stderr, asctime (&loctime)); 

   275                 

   276                 if (localtime_r((time_t *)&schedule->validTo, &loctime) == NULL) {

   277                     g_warning ("localtime_r error in mmyth_epg_grid_widget!\n");

   278                     return NULL;

   279                 } 

   280                 fprintf (stderr, asctime (&loctime)); 

   281             #endif

   282     		

   283     	    /* fprintf(stderr, "duration = %d\n", duration); */

   284     	    double duration_hour = duration / (double) 3600.0;

   285     	    /* fprintf(stderr, "duration_hour = %lf\n", duration_hour); */

   286     		

   287             int size = PIXELS_HOUR * duration_hour;

   288                 

   289             /* complete hour */

   290             /* FIXME: UGLY WRONG HACK TO ALIGN PROGRAM TIME!!!*/

   291             if(last_time%3600 != 0) {

   292                 size -= PROGRAM_SEPARATION;                

   293             }

   294             if(initial_time%3600 != 0) {

   295                 size -= PROGRAM_SEPARATION;                

   296             }

   297 

   298             pixel_count += size + PROGRAM_SEPARATION;

   299 	        GtkWidget *event_box = create_event_box_lbl(content_name->str, 

   300 							  size, &bg_color, 

   301 							  &fg_color);

   302 							  gtk_widget_add_events(event_box, 

   303 							  GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);

   304             

   305             /* create EpgGridItem */

   306             EpgGridItem *epg_grid_item = g_new(EpgGridItem, 1);

   307             epg_grid_item->proginfo  = proginfo;

   308             epg_grid_item->event_box = event_box;

   309             epg_grid_item->object    = mmyth_epg_grid_widget;

   310             

   311             epg_grid_list = g_list_prepend(epg_grid_list, (gpointer) epg_grid_item);                                   		                        

   312 

   313      	    gtk_box_pack_start (GTK_BOX (epg_line_hbox),

   314 	                            event_box, FALSE, FALSE, PROGRAM_SEPARATION);

   315 	                                 

   316    	        g_signal_connect (G_OBJECT (event_box), "button-press-event",

   317 		                      G_CALLBACK (mmyth_epg_grid_widget_clicked), 

   318                               (gpointer*) epg_grid_list);

   319         }

   320 #if 0

   321         printf("chaind = %d!!!!" chanid);fflush(stdout);

   322 #endif        

   323 

   324         if(!epg_grid_list) {

   325             /* No programs for current channel */

   326             /* FIXME: size HARDCODED */

   327             GtkWidget *event_box = create_event_box_lbl("No program list available",

   328                               PIXELS_HOUR * 3, &bg_color,

   329                               &fg_color);

   330                               gtk_widget_add_events(event_box,

   331                               GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);

   332 

   333             /* create EpgGridItem */

   334             EpgGridItem *epg_grid_item = g_new(EpgGridItem, 1);

   335             epg_grid_item->proginfo  = NULL;

   336             epg_grid_item->event_box = event_box;

   337             epg_grid_item->object    = mmyth_epg_grid_widget;

   338 

   339             epg_grid_list = g_list_prepend(epg_grid_list, (gpointer) epg_grid_item);

   340             

   341             gtk_box_pack_start (GTK_BOX (epg_line_hbox),

   342 	                            event_box, FALSE, FALSE, PROGRAM_SEPARATION);            	

   343 	                                 

   344    	        g_signal_connect (G_OBJECT (event_box), "button-press-event",

   345 		                      G_CALLBACK (mmyth_epg_grid_widget_clicked),

   346                               (gpointer*) epg_grid_list);

   347         }

   348 

   349         epg_grid_list = g_list_reverse(epg_grid_list);

   350         mmyth_epg_grid_widget->epg_view_model = 

   351               g_list_append(mmyth_epg_grid_widget->epg_view_model, epg_grid_list);

   352         

   353 	    gtk_box_pack_start (GTK_BOX (private->epg_programs_vbox),

   354 	                        epg_line_hbox, FALSE, FALSE,  0);                    		    		

   355     }

   356 }

   357 

   358 static void

   359 mmyth_epg_grid_widget_mount_header(MMythEpgGridWidget *mmyth_epg_grid_widget)

   360 {	          	    

   361     MMythEpgGridWidgetPrivate *private = 

   362         MMYTH_EPG_GRID_WIDGET_GET_PRIVATE(mmyth_epg_grid_widget);

   363     

   364     struct tm hour_tm;

   365     const gchar name_title[] = "Today";    

   366     GtkWidget * lbl_title = gtk_label_new(name_title);

   367 

   368     gtk_misc_set_alignment (GTK_MISC(lbl_title), 0.0, 0.5);

   369     

   370     gtk_box_pack_start (GTK_BOX (private->epg_channels_vbox),

   371                         lbl_title, FALSE, FALSE, 0);

   372 

   373 	/* hours title line */

   374     GtkWidget *epg_programs_hours_hbox = gtk_hbox_new (TRUE, 0); 

   375 

   376     if (localtime_r((time_t *)&private->current_start_time, &hour_tm) == NULL) {

   377         g_warning ("localtime_r error in mmyth_epg_grid_widget!\n");

   378         return NULL;

   379     }    

   380 

   381     if (hour_tm.tm_min>30) {

   382         hour_tm.tm_min = 30;

   383     } else if (hour_tm.tm_min>0) {

   384         hour_tm.tm_min = 0;

   385     }

   386         

   387     gchar hour1_str[10];

   388     strftime(hour1_str, 8, "%H:%M", &hour_tm);

   389     GtkWidget * lbl_hour1 = gtk_label_new(hour1_str);

   390     gtk_misc_set_alignment (GTK_MISC(lbl_hour1), 0.0, 0.5);    

   391 	

   392     hour_tm.tm_hour++;

   393     gchar hour2_str[10];    

   394     strftime(hour2_str, 8, "%H:%M", &hour_tm);

   395     GtkWidget * lbl_hour2 = gtk_label_new(hour2_str);

   396     gtk_misc_set_alignment (GTK_MISC(lbl_hour2), 0.0, 0.5);        

   397 

   398     hour_tm.tm_hour++;

   399 	gchar hour3_str[10];    

   400     strftime(hour3_str, 8, "%H:%M", &hour_tm);

   401     GtkWidget * lbl_hour3 = gtk_label_new(hour3_str);

   402     gtk_misc_set_alignment (GTK_MISC(lbl_hour3), 0.0, 0.5);        

   403     

   404     gtk_box_pack_start (GTK_BOX (epg_programs_hours_hbox),

   405                         lbl_hour1, TRUE, TRUE, 0);                    

   406     gtk_box_pack_start (GTK_BOX (epg_programs_hours_hbox),

   407                         lbl_hour2, TRUE, TRUE, 0);                    

   408     gtk_box_pack_start (GTK_BOX (epg_programs_hours_hbox),

   409                         lbl_hour3, TRUE, TRUE, 0); 

   410  

   411     gtk_box_pack_start (GTK_BOX (private->epg_programs_vbox),

   412                         epg_programs_hours_hbox, FALSE, FALSE, 0);                        

   413 }

   414 

   415 /******************************************************************************

   416  *              INTERNAL CALLBACKS FOR STATE CHANGE                           *

   417  *****************************************************************************/

   418 static void 

   419 mmyth_epg_grid_widget_deselect_service(MMythEpgGridWidget *mmyth_epg_grid_widget)

   420 {

   421 	EpgGridItem *epg_grid_item;

   422 	

   423   	/* deselect*/

   424     if(mmyth_epg_grid_widget->selected_grid_item != NULL) {

   425     	epg_grid_item = 

   426             (EpgGridItem*) mmyth_epg_grid_widget->selected_grid_item->data;

   427     	gtk_widget_set_state(GTK_WIDGET(epg_grid_item->event_box), GTK_STATE_NORMAL);

   428     }            

   429 }

   430 

   431 static void 

   432 mmyth_epg_grid_widget_clicked (GtkWidget* widget, 

   433                                GdkEventExpose *event, gpointer data)

   434 {           

   435     g_return_if_fail(data != NULL);

   436 

   437     GList *epg_grid_item_list = (GList *) data;

   438     EpgGridItem *epg_grid_item = (EpgGridItem *) epg_grid_item_list->data;

   439 

   440     /* update the selected service */

   441     mmyth_epg_grid_widget_update_service( epg_grid_item->object, (GList*) data );       

   442 }

   443 

   444 void

   445 mmyth_epg_grid_widget_update_service(MMythEpgGridWidget * object,

   446                                      GList *selected_grid_list)

   447 {

   448     g_return_if_fail(object != NULL);

   449     g_return_if_fail(selected_grid_list != NULL);

   450 		

   451 	EpgGridItem *epg_grid_item = (EpgGridItem *) selected_grid_list->data;

   452 

   453     mmyth_epg_grid_widget_deselect_service(epg_grid_item->object);

   454 

   455     /* updating current selected schedule_item and schedule_list*/

   456     object->selected_grid_item = selected_grid_list;

   457     

   458     /* set state of the event box */

   459     gtk_widget_set_state(GTK_WIDGET(epg_grid_item->event_box), GTK_STATE_SELECTED);

   460     /* emit update signal for listeners */

   461     g_signal_emit(object, 

   462                   mmyth_epg_grid_widget_signals[SELECTION_UPDATED_SIGNAL],

   463                   0,

   464                   (gpointer) epg_grid_item);

   465 }

   466 

   467 static GtkWidget * 

   468 create_event_box_lbl(gchar *str, int width, const GdkColor *bg_color, 

   469                      const GdkColor *fg_color) 

   470 {

   471     GtkWidget *event_box = gtk_event_box_new();

   472 	GtkWidget *lbl = gtk_label_new(str);

   473     gtk_label_set_ellipsize(GTK_LABEL(lbl), PANGO_ELLIPSIZE_END);

   474 

   475     gtk_widget_modify_bg(event_box, GTK_STATE_NORMAL, bg_color);    

   476     gtk_widget_modify_fg(lbl, GTK_STATE_NORMAL, fg_color);    

   477     

   478     /* selected colors are const*/

   479     GdkColor selected_bg_color;

   480     selected_bg_color.red = 100;

   481     selected_bg_color.green = 40000;

   482     selected_bg_color.blue = 100;        

   483 

   484     GdkColor selected_fg_color;

   485     selected_fg_color.red = 100;

   486     selected_fg_color.green = 100;

   487     selected_fg_color.blue = 100;        

   488             

   489     gtk_widget_modify_bg(event_box, GTK_STATE_SELECTED, &selected_bg_color);    

   490     gtk_widget_modify_fg(lbl, GTK_STATE_SELECTED, &selected_fg_color);    

   491     

   492     gtk_misc_set_alignment (GTK_MISC(lbl), 0.0, 0.5);    

   493 	gtk_container_add (GTK_CONTAINER (event_box),

   494                        lbl);

   495 	gtk_widget_set_size_request(event_box, width, -1);

   496 	                       

   497     return event_box;

   498 }

   499 

   500 /******************************************************************************

   501  *                            METHODS                                         *

   502  *****************************************************************************/

   503 

   504 /* Callback for hardware keys */

   505 gboolean

   506 mmyth_epg_grid_widget_key_press (MMythEpgGridWidget * object, 

   507                                  GtkWidget * widget, GdkEventKey * event)

   508 {

   509     MMythEpgGridWidgetPrivate *private = 

   510         MMYTH_EPG_GRID_WIDGET_GET_PRIVATE(object);

   511   

   512     EpgGridItem *epg_grid_item;

   513     GList *tmp;

   514     

   515     /* List of selected_grid_item */

   516     GList *selected_view_model;

   517     

   518     gint channel_index;

   519     

   520 	if(object->selected_grid_item == NULL) {

   521         g_warning ("No program selected");

   522 	    return FALSE;

   523 	} 

   524     

   525     epg_grid_item = (EpgGridItem*) object->selected_grid_item->data;    

   526     

   527     channel_index = private->selected_channel_index;

   528     

   529     switch (event->keyval) {

   530         case GDK_Up:        

   531             selected_view_model = g_list_nth( object->epg_view_model, channel_index - 1 );

   532             if(selected_view_model != NULL) {

   533                 private->selected_channel_index = channel_index - 1;

   534    	            tmp = (GList *) selected_view_model->data;               

   535                 /* TODO: select a better centralized item 

   536                    currently is picking the 1st or last item */

   537                 if(g_list_next(object->selected_grid_item) == NULL &&

   538                    g_list_previous(object->selected_grid_item) != NULL) {

   539                     /* in this case the new selected will be the last */ 

   540                     tmp = g_list_last(tmp);

   541                 }

   542 

   543 	            /* update the selected service */

   544                 mmyth_epg_grid_widget_update_service( object, tmp );

   545             }    

   546         return TRUE;         

   547         case GDK_Down:

   548             selected_view_model = g_list_nth( object->epg_view_model, channel_index + 1 );            

   549             if(selected_view_model != NULL) {   	            

   550                 private->selected_channel_index = channel_index + 1;

   551    	            tmp = (GList *) selected_view_model->data;

   552                 /* TODO: select a better centralized item 

   553                    currently is picking the 1st or last item */

   554                 if(g_list_next(object->selected_grid_item) == NULL &&

   555                    g_list_previous(object->selected_grid_item) != NULL) {

   556                     /* in this case the new selected will be the last */ 

   557                     tmp = g_list_last(tmp);

   558                 }

   559 

   560 	            /* update the selected service */

   561                 mmyth_epg_grid_widget_update_service( object, tmp );

   562             }

   563         return TRUE;        

   564         case GDK_Left:    

   565             tmp = g_list_previous( object->selected_grid_item );

   566             if(tmp != NULL) {

   567 	            /* update the selected service */

   568                 mmyth_epg_grid_widget_update_service( object, tmp );

   569             }

   570         return TRUE;        

   571         case GDK_Right:

   572             tmp = g_list_next( object->selected_grid_item );

   573             if(tmp != NULL) {

   574 	            /* update the selected service */

   575                 mmyth_epg_grid_widget_update_service( object, tmp );

   576             }

   577         return TRUE;        

   578 	    default:

   579 	    return TRUE;

   580     }

   581     

   582     return FALSE;

   583 }

   584 

   585 static void 

   586 mmyth_epg_grid_widget_fill_programinfos (MMythEpgGridWidgetPrivate *private)

   587 {

   588     GList *channels_list = NULL;

   589     int y;

   590 

   591     if ((private->mmyth_epg != NULL) &&

   592 	   	(gmyth_epg_get_channel_list (private->mmyth_epg, &channels_list) < 0 )) {

   593 			private->channel_list = NULL;

   594 			return;

   595     }

   596     

   597     private->channel_list = channels_list;

   598     

   599     for (y = 0; y < private->DISPLAY_CHANS && channels_list; y++) {

   600         GMythChannelInfo *channel_info = (GMythChannelInfo *) channels_list->data;

   601 

   602         mmyth_epg_grid_widget_fill_program_row_infos(

   603                             private, channel_info->channel_ID, y);

   604 

   605         channels_list = g_list_next (channels_list);

   606     }

   607 }

   608 

   609 static void 

   610 mmyth_epg_grid_widget_fill_program_row_infos(MMythEpgGridWidgetPrivate *private,

   611                                              guint chanNum, guint row)

   612 {    

   613     gint res =  gmyth_epg_get_program_list (private->mmyth_epg,

   614     					&(private->program_list[row]),

   615                         chanNum, private->current_start_time, 

   616                         private->current_end_time);

   617                         

   618     if (res < 0) {

   619     	g_warning ("[%s] Error while retrieving epg programs", __FUNCTION__);

   620     }

   621 }

   622
gmyth