Added a function to get tooltip tooltip widget

2005-11-23  Srinivasa Ragavan  <sragavan@novell.com>

	* gui/e-calendar-view.c (tooltip_grab), (get_label),
	(e_calendar_view_get_tooltips): Added a function to get tooltip
	tooltip widget
	* gui/e-calendar-view.h:
	* gui/e-day-view.c (e_day_view_add_event),
	(e_day_view_reshape_long_event), (e_day_view_reshape_day_event),
	(e_day_view_on_text_item_event): Added tooltip for day/work week
	view.
	* gui/e-week-view.c (e_week_view_add_event), (tooltip_event_cb),
	(e_week_view_reshape_event_span), (e_week_view_on_text_item_event):
	Added tooltip for week/month view.
	* gui/e-week-view.h:
	* gui/misc.c (get_position_in_array), (calculate_time): Added a
	function for converting time to string.
	* gui/misc.h:

svn path=/trunk/; revision=30648

8 files changed, 379 insertions, 9 deletions

diff --git a/calendar/ChangeLog b/calendar/ChangeLog
index 13b683a4de..8d6a674924 100644
--- a/calendar/ChangeLog
+++ b/calendar/ChangeLog
@@ -1,3 +1,21 @@
+2005-11-23  Srinivasa Ragavan  <sragavan@novell.com>
+
+	* gui/e-calendar-view.c (tooltip_grab), (get_label),
+	(e_calendar_view_get_tooltips): Added a function to get tooltip
+	tooltip widget
+	* gui/e-calendar-view.h:
+	* gui/e-day-view.c (e_day_view_add_event),
+	(e_day_view_reshape_long_event), (e_day_view_reshape_day_event),
+	(e_day_view_on_text_item_event): Added tooltip for day/work week
+	view.
+	* gui/e-week-view.c (e_week_view_add_event), (tooltip_event_cb),
+	(e_week_view_reshape_event_span), (e_week_view_on_text_item_event):
+	Added tooltip for week/month view.
+	* gui/e-week-view.h:
+	* gui/misc.c (get_position_in_array), (calculate_time): Added a 
+	function for converting time to string.
+	* gui/misc.h:
+
 2005-11-22  Boby Wang <boby.wang@sun.com>
 	Fixes #321237
 	* gui/dialogs/event-page.glade: Add the categories' name
diff --git a/calendar/gui/e-calendar-view.c b/calendar/gui/e-calendar-view.c
index f2324da1f7..d9b624f5f9 100644
--- a/calendar/gui/e-calendar-view.c
+++ b/calendar/gui/e-calendar-view.c
@@ -31,9 +31,14 @@
 #include <gtk/gtkstock.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtkbindings.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkbox.h>
+#include <gtk/gtkcontainer.h>
+#include <gtk/gtkwindow.h>
 #include <libgnome/gnome-i18n.h>
 #include <e-util/e-dialog-utils.h>
 #include <e-util/e-icon-factory.h>
+#include <e-util/e-time-utils.h>
 #include "e-calendar-marshal.h"
 #include <libecal/e-cal-time-util.h>
 #include <libecal/e-cal-component.h>
@@ -59,6 +64,7 @@
 #include "goto.h"
 #include "ea-calendar.h"
 #include "e-cal-popup.h"
+#include "misc.h"
 
 /* Used for the status bar messages */
 #define EVOLUTION_CALENDAR_PROGRESS_IMAGE "stock_calendar"
@@ -1851,3 +1857,165 @@ e_calendar_view_modify_and_send (ECalComponent *comp,
 		g_message (G_STRLOC ": Could not update the object!");
 	}
 }
+
+static gboolean
+tooltip_grab (GtkWidget *tooltip, GdkEventKey *event, ECalendarViewEvent *pevent)
+{
+	gdk_keyboard_ungrab(GDK_CURRENT_TIME);
+
+	gtk_widget_destroy (pevent->tooltip);
+	pevent->tooltip = NULL;
+	pevent->timeout = -1;
+
+	return FALSE;
+}
+
+static char *
+get_label (struct icaltimetype *tt)
+{
+        char buffer[1000];
+        struct tm tmp_tm;
+
+	tmp_tm = icaltimetype_to_tm (tt);
+        e_time_format_date_and_time (&tmp_tm,
+                                     calendar_config_get_24_hour_format (),
+                                     FALSE, FALSE,
+                                     buffer, 1000);
+
+        return g_strdup (buffer);
+}
+
+
+gboolean
+e_calendar_view_get_tooltips (ECalendarViewEvent *pevent)
+{
+	GtkWidget *label, *box, *hbox, *ebox, *frame;
+	const char *str;
+	char *tmp, *tmp1, *tmp2;
+	ECalComponentOrganizer organiser;	
+	ECalComponentDateTime dtstart, dtend;
+	icalcomponent *clone_comp;
+	time_t t_start, t_end;
+	
+	ECalComponent *newcomp = e_cal_component_new ();
+	icaltimezone *zone;
+	GdkColor color, outer_color;
+
+     	gdk_color_parse ("PeachPuff2", &color);		
+	gdk_color_parse ("antique white", &outer_color);
+
+	clone_comp = icalcomponent_new_clone (pevent->comp_data->icalcomp);
+	if (!e_cal_component_set_icalcomponent (newcomp, clone_comp))
+		g_warning ("couldn't update calendar component with modified data from backend\n");
+
+	box = gtk_vbox_new (FALSE, 0);
+
+	str = icalcomponent_get_summary (pevent->comp_data->icalcomp);
+	tmp = g_strdup_printf ("<b>%s</b>", str);
+	label = gtk_label_new (NULL);
+	gtk_label_set_line_wrap ((GtkLabel *)label, TRUE);
+	gtk_label_set_markup ((GtkLabel *)label, tmp);
+	
+	hbox = gtk_hbox_new (FALSE, 0);
+	gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
+	ebox = gtk_event_box_new ();
+	gtk_container_add ((GtkContainer *)ebox, hbox);
+	gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL, &color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_ACTIVE, &color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_SELECTED, &color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_PRELIGHT, &color);
+	
+	gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
+	g_free (tmp);
+	
+	e_cal_component_get_organizer (newcomp, &organiser);
+	if (organiser.cn) {
+		char *ptr ; 
+		GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
+		ptr = strchr(organiser.value, ':');
+		ptr++;
+		tmp = g_strdup_printf ("Organiser: %s <%s>", organiser.cn, ptr);
+		label = gtk_label_new (tmp);
+		gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
+		ebox = gtk_event_box_new ();
+		gtk_container_add ((GtkContainer *)ebox, hbox);
+		gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_ACTIVE, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_SELECTED, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_PRELIGHT, &outer_color);		
+		gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
+
+		g_free (tmp);
+	}
+	
+	e_cal_component_get_location (newcomp, &str);
+
+	if (str) {
+		tmp = g_strdup_printf ("Location: %s", str);
+		label = gtk_label_new (NULL);
+		gtk_label_set_markup ((GtkLabel *)label, tmp);
+		hbox = gtk_hbox_new (FALSE, 0);
+		gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
+		ebox = gtk_event_box_new ();
+		gtk_container_add ((GtkContainer *)ebox, hbox);
+		gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_ACTIVE, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_SELECTED, &outer_color);
+		gtk_widget_modify_bg (ebox, GTK_STATE_PRELIGHT, &outer_color);		
+		gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
+		g_free (tmp);
+	}
+	e_cal_component_get_dtstart (newcomp, &dtstart);
+	e_cal_component_get_dtend (newcomp, &dtend);
+			
+	if (dtstart.tzid) {
+		zone = icalcomponent_get_timezone (e_cal_component_get_icalcomponent (newcomp), dtstart.tzid);
+	} else {
+		zone = NULL;
+	}
+	t_start = icaltime_as_timet_with_zone (*dtstart.value, zone);
+		
+	if (dtend.tzid) {
+		zone = icalcomponent_get_timezone (e_cal_component_get_icalcomponent (newcomp), dtend.tzid);
+	} else {
+		zone = NULL;
+	}
+	t_end = icaltime_as_timet_with_zone (*dtend.value, zone);
+		
+	tmp1 = get_label(dtstart.value);
+	tmp = calculate_time (t_start, t_end);
+
+	tmp2 = g_strdup_printf("Time: %s %s", tmp1, tmp);
+	hbox = gtk_hbox_new (FALSE, 0);
+	gtk_box_pack_start ((GtkBox *)hbox, gtk_label_new_with_mnemonic (tmp2), FALSE, FALSE, 0);
+	ebox = gtk_event_box_new ();
+	gtk_container_add ((GtkContainer *)ebox, hbox);
+	gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL, &outer_color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_ACTIVE, &outer_color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_SELECTED, &outer_color);
+	gtk_widget_modify_bg (ebox, GTK_STATE_PRELIGHT, &outer_color);		
+	gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
+	
+	g_free (tmp);
+	g_free (tmp2);
+	g_free (tmp1);
+
+	pevent->tooltip = gtk_window_new (GTK_WINDOW_POPUP);
+	frame = gtk_frame_new (NULL);
+	gtk_frame_set_shadow_type ((GtkFrame *)frame, GTK_SHADOW_IN);
+	
+	gtk_window_move ((GtkWindow *)pevent->tooltip, pevent->x +16, pevent->y+16);
+	gtk_container_add ((GtkContainer *)frame, box);
+	gtk_container_add ((GtkContainer *)pevent->tooltip, frame);
+			
+	gtk_widget_show_all (pevent->tooltip);	
+	gdk_keyboard_grab (pevent->tooltip->window, FALSE, GDK_CURRENT_TIME);
+	g_signal_connect (pevent->tooltip, "key-press-event", G_CALLBACK (tooltip_grab), pevent);
+	pevent->timeout = -1;
+
+	g_object_unref (newcomp);
+	
+	return FALSE;
+}
+	
+
diff --git a/calendar/gui/e-calendar-view.h b/calendar/gui/e-calendar-view.h
index 17778e3a2b..8e2d67c477 100644
--- a/calendar/gui/e-calendar-view.h
+++ b/calendar/gui/e-calendar-view.h
@@ -66,7 +66,11 @@ typedef enum {
         time_t end; \
         guint16 start_minute; \
         guint16 end_minute; \
-        guint different_timezone : 1;
+        guint different_timezone : 1; \
+	GtkWidget *tooltip; \
+	gint	timeout; \
+	GdkColor *color; \
+	gint x,y; 
 
 typedef struct {
 	E_CALENDAR_VIEW_EVENT_FIELDS
@@ -154,7 +158,7 @@ void           e_calendar_view_modify_and_send (ECalComponent *comp,
 					       GtkWindow *toplevel,
 					       gboolean new);
 
-
+gboolean	e_calendar_view_get_tooltips (ECalendarViewEvent *pevent);
 G_END_DECLS
 
 #endif
diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index a7092f8f91..1c655ad7f2 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -4224,6 +4224,9 @@ e_day_view_add_event (ECalComponent *comp,
 	}
 
 	event.start = start;
+	event.tooltip = NULL;
+	event.color = NULL;
+	event.timeout = -1;
 	event.end = end;
 	event.canvas_item = NULL;
 	event.comp_data->instance_start = start;
@@ -4465,6 +4468,7 @@ e_day_view_reshape_long_event (EDayView *day_view,
 					       NULL);
 		g_signal_connect (event->canvas_item, "event",
 				  G_CALLBACK (e_day_view_on_text_item_event), day_view);
+		g_object_set_data ((GObject *)event->canvas_item, "event", (gpointer)event);
 		g_signal_emit_by_name (G_OBJECT(day_view),
 				       "event_added", event);
 
@@ -4646,6 +4650,7 @@ e_day_view_reshape_day_event (EDayView *day_view,
 						       NULL);
 			g_signal_connect (event->canvas_item, "event",
 					  G_CALLBACK (e_day_view_on_text_item_event), day_view);
+			g_object_set_data ((GObject *)event->canvas_item, "event", (gpointer)event);
 			g_signal_emit_by_name (G_OBJECT(day_view),
 					       "event_added", event);
 
@@ -5765,7 +5770,6 @@ cancel_editing (EDayView *day_view)
 	e_day_view_stop_editing_event (day_view);
 }
 
-
 static gboolean
 e_day_view_on_text_item_event (GnomeCanvasItem *item,
 			       GdkEvent *event,
@@ -5825,10 +5829,50 @@ e_day_view_on_text_item_event (GnomeCanvasItem *item,
 			e_day_view_on_editing_stopped (day_view, item);
 
 		return FALSE;
+	case GDK_ENTER_NOTIFY:
+		{
+			EDayViewEvent *pevent = (EDayViewEvent *)g_object_get_data ((GObject *)item, "event");
+			
+			pevent->x = ((GdkEventCrossing *)event)->x_root;
+			pevent->y = ((GdkEventCrossing *)event)->y_root;
+			pevent->tooltip = NULL;			
+			pevent->timeout = g_timeout_add (500, (GSourceFunc)e_calendar_view_get_tooltips, pevent);
+			
+		return TRUE;
+		}
+	case GDK_LEAVE_NOTIFY:
+		{
+			EDayViewEvent *pevent = (EDayViewEvent *)g_object_get_data ((GObject *)item, "event");
+			
+			if (pevent && pevent->tooltip) {
+				gtk_widget_destroy (pevent->tooltip);
+				pevent->tooltip = NULL;
+			}
+
+			if (pevent && pevent->timeout != -1) {
+				g_source_remove (pevent->timeout);
+				pevent->timeout = -1;
+			}
+			
+		return TRUE;
+		}
+	case GDK_MOTION_NOTIFY:
+		{
+			EDayViewEvent *pevent = (EDayViewEvent *)g_object_get_data ((GObject *)item, "event");
+			
+			pevent->x = ((GdkEventMotion *)event)->x_root;
+			pevent->y = ((GdkEventMotion *)event)->y_root;
+
+			if (pevent->tooltip) {
+				gtk_window_move ((GtkWindow *)pevent->tooltip, ((int)((GdkEventMotion *)event)->x_root)+16, ((int)((GdkEventMotion *)event)->y_root) +16);
+			}
+
+			return TRUE;
+		}
 	default:
 		break;
 	}
-
+	
 	return FALSE;
 }
 
diff --git a/calendar/gui/e-week-view.c b/calendar/gui/e-week-view.c
index a3cd52bba3..d6a0aba123 100644
--- a/calendar/gui/e-week-view.c
+++ b/calendar/gui/e-week-view.c
@@ -2391,6 +2391,9 @@ e_week_view_add_event (ECalComponent *comp,
 	}
 	event.start = start;
 	event.end = end;
+	event.tooltip = NULL;
+	event.timeout = -1;
+	event.color = NULL;
 	event.spans_index = 0;
 	event.num_spans = 0;
 	event.comp_data->instance_start = start;
@@ -2547,6 +2550,50 @@ e_week_view_reshape_events (EWeekView *week_view)
 }
 
 
+static gboolean
+tooltip_event_cb (GnomeCanvasItem *item,
+   	          GdkEvent *event,
+		  EWeekView *view)
+{
+	EWeekViewEvent *pevent = g_object_get_data ((GObject *)item, "event");
+	
+	switch (event->type) {
+		case GDK_ENTER_NOTIFY:
+			
+			pevent->x = ((GdkEventCrossing *)event)->x_root;
+			pevent->y = ((GdkEventCrossing *)event)->y_root;
+			pevent->tooltip = NULL;			
+			pevent->timeout = g_timeout_add (500, (GSourceFunc)e_calendar_view_get_tooltips, pevent);
+			
+			return TRUE;
+		
+		case GDK_LEAVE_NOTIFY:
+			if (pevent && pevent->tooltip) {
+				gtk_widget_destroy (pevent->tooltip);
+				pevent->tooltip = NULL;
+			}
+
+			if (pevent && pevent->timeout != -1) {
+				g_source_remove (pevent->timeout);
+				pevent->timeout = -1;
+			}
+			return TRUE;
+		case GDK_MOTION_NOTIFY:
+			pevent->x = ((GdkEventMotion *)event)->x_root;
+			pevent->y = ((GdkEventMotion *)event)->y_root;
+
+			if (pevent->tooltip) {
+				gtk_window_move ((GtkWindow *)pevent->tooltip, ((int)((GdkEventMotion *)event)->x_root)+16, ((int)((GdkEventMotion *)event)->y_root) +16);
+			}
+
+			return TRUE;
+		default:
+			return FALSE;
+	}
+
+	return FALSE;
+}
+
 static void
 e_week_view_reshape_event_span (EWeekView *week_view,
 				gint event_num,
@@ -2640,7 +2687,12 @@ e_week_view_reshape_event_span (EWeekView *week_view,
 					       e_week_view_event_item_get_type (),
 					       NULL);
 	}
-
+	
+	g_object_set_data ((GObject *)span->background_item, "event", event);
+	g_signal_connect (span->background_item, "event",
+			  G_CALLBACK (tooltip_event_cb),
+			  week_view);
+	
 	gnome_canvas_item_set (span->background_item,
 			       "event_num", event_num,
 			       "span_num", span_num,
@@ -2671,7 +2723,7 @@ e_week_view_reshape_event_span (EWeekView *week_view,
 				&& e_cal_util_component_has_attendee (event->comp_data->icalcomp)) {
 			set_text_as_bold (event, span);
 		} */
-
+		g_object_set_data ((GObject *)span->text_item, "event", event);		
 		g_signal_connect (span->text_item, "event",
 				  G_CALLBACK (e_week_view_on_text_item_event),
 				  week_view);
@@ -2940,11 +2992,12 @@ e_week_view_on_text_item_event (GnomeCanvasItem *item,
 {
 	EWeekViewEvent *event;
 	gint event_num, span_num;
-
+	EWeekViewEvent *pevent = g_object_get_data ((GObject *)item, "event");
+	
 #if 0
 	g_print ("In e_week_view_on_text_item_event\n");
 #endif
-
+	
 	switch (gdkevent->type) {
 	case GDK_KEY_PRESS:
 		if (gdkevent && gdkevent->key.keyval == GDK_Return) {
@@ -3055,6 +3108,35 @@ e_week_view_on_text_item_event (GnomeCanvasItem *item,
 		}
 		week_view->pressed_event_num = -1;
 		break;
+		case GDK_ENTER_NOTIFY:
+			
+			pevent->x = ((GdkEventCrossing *)gdkevent)->x_root;
+			pevent->y = ((GdkEventCrossing *)gdkevent)->y_root;
+			pevent->tooltip = NULL;
+			pevent->timeout = g_timeout_add (500, (GSourceFunc)e_calendar_view_get_tooltips, pevent);
+			
+			return TRUE;
+		
+		case GDK_LEAVE_NOTIFY:
+			if (pevent && pevent->tooltip) {
+				gtk_widget_destroy (pevent->tooltip);
+				pevent->tooltip = NULL;
+			}
+
+			if (pevent && pevent->timeout != -1) {
+				g_source_remove (pevent->timeout);
+				pevent->timeout = -1;
+			}
+			return TRUE;
+		case GDK_MOTION_NOTIFY:
+			pevent->x = ((GdkEventMotion *)gdkevent)->x_root;
+			pevent->y = ((GdkEventMotion *)gdkevent)->y_root;
+
+			if (pevent->tooltip) {
+				gtk_window_move ((GtkWindow *)pevent->tooltip, ((int)((GdkEventMotion *)gdkevent)->x_root)+16, ((int)((GdkEventMotion *)gdkevent)->y_root) +16);
+			}
+
+			return TRUE;		
 	case GDK_FOCUS_CHANGE:
 		if (gdkevent->focus_change.in) {
 			e_week_view_on_editing_started (week_view, item);
diff --git a/calendar/gui/e-week-view.h b/calendar/gui/e-week-view.h
index 58ff08aa22..888d88bccb 100644
--- a/calendar/gui/e-week-view.h
+++ b/calendar/gui/e-week-view.h
@@ -143,6 +143,7 @@ struct _EWeekViewEventSpan {
 typedef struct _EWeekViewEvent EWeekViewEvent;
 struct _EWeekViewEvent {
 	E_CALENDAR_VIEW_EVENT_FIELDS
+
 	gint spans_index;
 	guint8 num_spans;
 };
diff --git a/calendar/gui/misc.c b/calendar/gui/misc.c
index 026cd8417e..5ab2739525 100644
--- a/calendar/gui/misc.c
+++ b/calendar/gui/misc.c
@@ -24,7 +24,10 @@
 #endif
 
 #include <ctype.h>
+#include <time.h>
 #include <libedataserver/e-url.h>
+#include "e-util/e-i18n.h"
+
 #include "misc.h"
 
 
@@ -91,3 +94,52 @@ get_position_in_array (GPtrArray *objects, gpointer item)
 
 	return -1;
 }
+
+char *
+calculate_time (time_t start, time_t end)
+{
+	time_t difference = end - start;
+	char *str;
+	
+	if (difference < 60) {/* Can't be zero */ 
+		str = g_strdup_printf (_("(%d seconds)"), difference);
+	} else if (difference > 60 && difference < 3600) { /* It will be x minutes y seconds*/
+		int minutes, seconds;
+		minutes = difference / 60;
+		seconds = difference % 60;
+		if (seconds)
+			str = g_strdup_printf (_("(%d %s %d %s)"), minutes, ngettext(_("minute"), _("minutes"), minutes), seconds, ngettext(_("second"), _("seconds"), seconds));
+		else 
+			str = g_strdup_printf (_("(%d %s)"), minutes, ngettext(_("minute"), _("minutes"), minutes));
+	} else {
+		guint hours, minutes, seconds;
+		char *s_hours = NULL, *s_minutes = NULL, *s_seconds = NULL;
+		
+		hours = difference / 3600;
+		minutes = (difference % 3600)/60;
+		seconds = difference % 60;
+
+
+		if (seconds)
+			s_seconds = g_strdup_printf (ngettext(_(" %u second"), _(" %u seconds"), seconds), seconds);	
+		if (minutes)
+			s_minutes = g_strdup_printf (ngettext(_(" %u minute"), _(" %u minutes"), minutes), minutes);
+		if (hours)
+			s_hours = g_strdup_printf (ngettext(_("%u hour"),_("%u hours"), hours), hours);
+
+		if (s_minutes && s_seconds)
+			str = g_strconcat ("(", s_hours, s_minutes, s_seconds, ")", NULL);
+		else if (s_minutes)
+			str = g_strconcat ("(", s_hours, s_minutes, ")", NULL);
+		else if (s_seconds)
+			str = g_strconcat ("(", s_hours, s_seconds, ")", NULL);
+		else 
+			str = g_strconcat ("(", s_hours, ")", NULL);
+
+		g_free (s_hours);
+		g_free (s_minutes);
+		g_free (s_seconds);
+	}
+
+	return g_strchug(str);
+}
diff --git a/calendar/gui/misc.h b/calendar/gui/misc.h
index 7f89788f2c..c48dbaffa1 100644
--- a/calendar/gui/misc.h
+++ b/calendar/gui/misc.h
@@ -23,9 +23,10 @@
 #define MISC_H
 
 #include <glib.h>
+#include <time.h>
 
 gboolean string_is_empty (const char *value);
 char    *get_uri_without_password (const char *uri);
 gint get_position_in_array (GPtrArray *objects, gpointer item);
-
+char * calculate_time (time_t start, time_t end);
 #endif