[evolution] Bug 704957 - Show timezone name in Day View above time column

[Milan Crha <mcrha src gnome org>]

commit 9e7a804b50bf1be6814e844e47562304cc84adf8
Author: Milan Crha <mcrha redhat com>
Date:   Wed Apr 22 19:41:27 2015 +0200

    Bug 704957 - Show timezone name in Day View above time column

 calendar/gui/e-day-view-time-item.c |    2 +
 calendar/gui/e-day-view.c           |   95 +++++++++++++++++++++++++++++++++--
 calendar/gui/e-day-view.h           |    3 +
 3 files changed, 96 insertions(+), 4 deletions(-)
---
diff --git a/calendar/gui/e-day-view-time-item.c b/calendar/gui/e-day-view-time-item.c
index 259e073..7fbd2e0 100644
--- a/calendar/gui/e-day-view-time-item.c
+++ b/calendar/gui/e-day-view-time-item.c
@@ -744,6 +744,8 @@ edvti_second_zone_changed_cb (GSettings *settings,
                day_view->time_canvas,
                e_day_view_time_item_get_column_width (time_item), -1);
        gtk_widget_queue_draw (day_view->time_canvas);
+
+       e_day_view_update_timezone_name_labels (day_view);
 }
 
 static void
diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index 3bd6842..77e391e 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -158,6 +158,9 @@ struct _EDayViewPrivate {
        gboolean marcus_bains_show_line;
        gchar *marcus_bains_day_view_color;
        gchar *marcus_bains_time_bar_color;
+
+       GtkWidget *timezone_name_1_label; /* not referenced */
+       GtkWidget *timezone_name_2_label; /* not referenced */
 };
 
 typedef struct {
@@ -1310,6 +1313,8 @@ day_view_constructed (GObject *object)
                model, "notify::work-day-end-minute",
                G_CALLBACK (gtk_widget_queue_draw), day_view->main_canvas);
        day_view->priv->notify_work_day_end_minute_handler_id = handler_id;
+
+       e_day_view_update_timezone_name_labels (day_view);
 }
 
 static void
@@ -2067,11 +2072,40 @@ e_day_view_init (EDayView *day_view)
        day_view->before_click_dtstart = 0;
        day_view->before_click_dtend = 0;
 
-       widget = gtk_label_new ("");
+       day_view->week_number_label = gtk_label_new ("");
+
+       widget = gtk_label_new (NULL);
+       gtk_label_set_ellipsize (GTK_LABEL (widget), PANGO_ELLIPSIZE_END);
+       gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 1.0);
+       day_view->priv->timezone_name_1_label = widget;
+
+       widget = gtk_label_new (NULL);
+       gtk_label_set_ellipsize (GTK_LABEL (widget), PANGO_ELLIPSIZE_END);
+       gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 1.0);
+       day_view->priv->timezone_name_2_label = widget;
+
+       widget = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
+
        gtk_table_attach (
-               GTK_TABLE (day_view), widget,
-               0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
-       day_view->week_number_label = widget;
+               GTK_TABLE (day_view), widget, 0, 1, 0, 1,
+               GTK_FILL, GTK_FILL, 0, 0);
+
+       container = widget;
+
+       gtk_box_pack_start (GTK_BOX (container), day_view->week_number_label, TRUE, TRUE, 2);
+
+       widget = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
+       gtk_box_pack_end (GTK_BOX (container), widget, TRUE, TRUE, 2);
+
+       gtk_widget_show_all (container);
+
+       container = widget;
+
+       gtk_box_set_homogeneous (GTK_BOX (container), TRUE);
+       gtk_box_pack_start (GTK_BOX (container), day_view->priv->timezone_name_1_label, TRUE, TRUE, 2);
+       gtk_box_pack_start (GTK_BOX (container), day_view->priv->timezone_name_2_label, TRUE, TRUE, 2);
+
+       gtk_widget_show_all (container);
 
        /*
         * Top Canvas
@@ -2696,6 +2730,7 @@ timezone_changed_cb (ECalModel *cal_model,
 
        e_day_view_recalc_day_starts (day_view, lower);
        e_day_view_update_query (day_view);
+       e_day_view_update_timezone_name_labels (day_view);
 }
 
 static void
@@ -9361,3 +9396,55 @@ e_day_view_is_editing (EDayView *day_view)
 
        return day_view->editing_event_day != -1;
 }
+
+static void
+day_view_update_timezone_name_label (GtkWidget *label,
+                                    icaltimezone *zone)
+{
+       const gchar *location, *dash;
+       gchar *markup;
+
+       g_return_if_fail (GTK_IS_LABEL (label));
+
+       if (!zone) {
+               location = NULL;
+       } else {
+               location = icaltimezone_get_location (zone);
+               if (location && *location)
+                       location = _(location);
+               if (!location || !*location)
+                       location = icaltimezone_get_tzid (zone);
+       }
+
+       if (!location)
+               location = "";
+
+       gtk_widget_set_tooltip_text (label, location);
+
+       dash = strchr (location, '/');
+       if (dash && *dash && dash[1])
+               location = dash + 1;
+
+       markup = g_markup_printf_escaped ("<small>%s</small>", location);
+       gtk_label_set_markup (GTK_LABEL (label), markup);
+       g_free (markup);
+}
+
+void
+e_day_view_update_timezone_name_labels (EDayView *day_view)
+{
+       icaltimezone *zone;
+
+       g_return_if_fail (E_IS_DAY_VIEW (day_view));
+
+       zone = e_cal_model_get_timezone (day_view->priv->model);
+       day_view_update_timezone_name_label (day_view->priv->timezone_name_1_label, zone);
+
+       zone = e_day_view_time_item_get_second_zone (E_DAY_VIEW_TIME_ITEM (day_view->time_canvas_item));
+       if (!zone) {
+               gtk_widget_hide (day_view->priv->timezone_name_2_label);
+       } else {
+               day_view_update_timezone_name_label (day_view->priv->timezone_name_2_label, zone);
+               gtk_widget_show (day_view->priv->timezone_name_2_label);
+       }
+}
diff --git a/calendar/gui/e-day-view.h b/calendar/gui/e-day-view.h
index 1e7eafb..6dcb141 100644
--- a/calendar/gui/e-day-view.h
+++ b/calendar/gui/e-day-view.h
@@ -564,6 +564,9 @@ void                e_day_view_ensure_rows_visible  (EDayView *day_view,
 
 gboolean       e_day_view_is_editing           (EDayView *day_view);
 
+void           e_day_view_update_timezone_name_labels
+                                               (EDayView *day_view);
+
 G_END_DECLS
 
 #endif /* E_DAY_VIEW_H */