Make number of forecast days configurable.

Add a spinner button to the configuration dialog and read/write
config entries. The max limit is 10 days, as imposed by the XML
feed.

panel-plugin/weather-config.c

@@ -229,6 +229,8 @@ apply_options (xfceweather_dialog *dialog)
       data->proxy_host = NULL;
     }
 
+  data->forecast_days = (gint) gtk_spin_button_get_value (GTK_SPIN_BUTTON (dialog->spin_forecast_days));
+
   data->animation_transitions = gtk_toggle_button_get_active(
   	GTK_TOGGLE_BUTTON(dialog->chk_animate_transition));
 
@@ -510,6 +512,21 @@ create_config_dialog (xfceweather_data *data,
     }
 
 
+  /* number of days shown in forecast */
+  label = gtk_label_new_with_mnemonic (_("Number of _forecast days:"));
+  dialog->spin_forecast_days = gtk_spin_button_new_with_range (1, MAX_FORECAST_DAYS, 1);
+  gtk_spin_button_set_value (GTK_SPIN_BUTTON (dialog->spin_forecast_days),
+                             dialog->wd->forecast_days);
+  gtk_label_set_mnemonic_widget(GTK_LABEL (label),
+                                GTK_WIDGET (dialog->spin_forecast_days));
+
+  hbox = gtk_hbox_new (FALSE, BORDER);
+  gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+  gtk_box_pack_start (GTK_BOX (hbox), dialog->spin_forecast_days, FALSE, FALSE, 0);
+  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+  gtk_size_group_add_widget (sg, label);
+
+
   /* labels */
   dialog->opt_xmloption = make_label ();
   dialog->mdl_xmloption = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);

panel-plugin/weather-config.h

@@ -38,6 +38,7 @@ typedef struct
   GtkWidget        *txt_proxy_port;
   GtkWidget        *chk_proxy_use;
   GtkWidget        *chk_proxy_fromenv;
+  GtkWidget        *spin_forecast_days;
 
   GtkWidget        *tooltip_yes;
   GtkWidget        *tooltip_no;

panel-plugin/weather-summary.c

@@ -406,13 +406,13 @@ make_forecast (xfceweather_data *data)
     GdkPixbuf *icon;
     GdkColor lightbg = {0, 0xeaea, 0xeaea, 0xeaea};
     GdkColor darkbg = {0, 0x6666, 0x6666, 0x6666};
-    gint num_days = 5, i, weekday, daytime;
+    gint i, weekday, daytime;
     gchar *dayname, *wind_speed, *value, *rawvalue;
     xml_time *fcdata;
     time_t now_t = time(NULL), fcday_t;
     struct tm tm_fcday;
 
-    table = gtk_table_new(num_days + 1, 5, FALSE);
+    table = gtk_table_new(data->forecast_days + 1, 5, FALSE);
     gtk_table_set_row_spacings(GTK_TABLE(table), 0);
     gtk_table_set_col_spacings(GTK_TABLE(table), 0);
     gtk_widget_show(GTK_WIDGET(table));
@@ -438,7 +438,7 @@ make_forecast (xfceweather_data *data)
                               add_forecast_header(_("Night"), 0.0, &darkbg),
                               4, 5, 0, 1);
 
-    for (i = 0; i < num_days; i++) {
+    for (i = 0; i < data->forecast_days; i++) {
         /* Forecast day headers */
         tm_fcday = *localtime(&now_t);
         fcday_t = time_calc_day(tm_fcday, i);

panel-plugin/weather.c

@@ -535,6 +535,9 @@ xfceweather_read_config (XfcePanelPlugin  *plugin,
       data->proxy_port = data->saved_proxy_port;
     }
 
+  val = xfce_rc_read_int_entry (rc, "forecast_days", 5);
+  data->forecast_days = (val > 0 && val <= MAX_FORECAST_DAYS) ? val : 5;
+
   data->animation_transitions = xfce_rc_read_bool_entry (rc,
   		"animation_transitions", TRUE);
 
@@ -603,6 +606,8 @@ xfceweather_write_config (XfcePanelPlugin  *plugin,
       xfce_rc_write_int_entry (rc, "proxy_port", data->proxy_port);
     }
 
+  xfce_rc_write_int_entry (rc, "forecast_days", data->forecast_days);
+
   xfce_rc_write_bool_entry (rc, "animation_transitions", data->animation_transitions);
 
   for (i = 0; i < data->labels->len; i++)

panel-plugin/weather.h

@@ -23,6 +23,7 @@
 #define PLUGIN_WEBSITE   "http://goodies.xfce.org/projects/panel-plugins/xfce4-weather-plugin"
 #define PARTNER_ID       "1121946239"
 #define LICENSE_KEY      "3c4cd39ee5dec84f"
+#define MAX_FORECAST_DAYS 10
 
 G_BEGIN_DECLS
 
@@ -69,6 +70,7 @@ typedef struct
   gint             saved_proxy_port;
   
   gboolean         animation_transitions;
+  gint             forecast_days;
 }
 xfceweather_data;