add a changed signal (e_meeting_time_selector_construct): emit changed

2001-11-05  JP Rosevear  <jpr@ximian.com>

	* gui/e-meeting-time-sel.c (e_meeting_time_selector_class_init):
	add a changed signal
	(e_meeting_time_selector_construct): emit changed signal
	(e_meeting_time_selector_set_meeting_time): ditto
	(e_meeting_time_selector_set_all_day): set the all day setting
	(e_meeting_time_selector_autopick): emit changed signal
	(e_meeting_time_selector_find_nearest_interval): find proper
	interval when in all day mode
	(e_meeting_time_selector_find_nearest_interval_backward): ditto
	(e_meeting_time_selector_drag_meeting_time): for all day events,
	move the time when past the 12 hour mark, and and always make sure
	1 full day is selected, emit changed signal when appropriate
	(e_meeting_time_selector_update_start_date_edit): set date and
	time of day together
	(e_meeting_time_selector_update_end_date_edit): ditto, and adjust
	display time if all day event

	* gui/e-meeting-time-sel-item.c
	(e_meeting_time_selector_item_draw): remove unused variable
	(e_meeting_time_selector_item_button_press): for all day mode,
	make the interval a whole day

	* gui/dialogs/schedule-page.c (update_time): set the meeting time
	selector setting instead of manual mucking with the e-date-edit
	widgets
	(init_widgets): listen to the changed signal of the meeting time
	selector instead of propagating multiple events as it updates

	* gui/dialogs/event-page.c (update_time): block time zone change
	signals

svn path=/trunk/; revision=14601

1 files changed, 130 insertions, 46 deletions

diff --git a/calendar/gui/e-meeting-time-sel.c b/calendar/gui/e-meeting-time-sel.c
index f5f16bdc9c..a8becd47bc 100644
--- a/calendar/gui/e-meeting-time-sel.c
+++ b/calendar/gui/e-meeting-time-sel.c
@@ -92,6 +92,14 @@ const gchar *EMeetingTimeSelectorHours12[24] = {
 /* This is the maximum scrolling speed. */
 #define E_MEETING_TIME_SELECTOR_MAX_SCROLL_SPEED	4
 
+/* Signals */
+enum {
+	CHANGED,
+	LAST_SIGNAL
+};
+
+
+static gint mts_signals [LAST_SIGNAL] = { 0 };
 
 static void e_meeting_time_selector_class_init (EMeetingTimeSelectorClass * klass);
 static void e_meeting_time_selector_init (EMeetingTimeSelector * mts);
@@ -238,10 +246,20 @@ e_meeting_time_selector_class_init (EMeetingTimeSelectorClass * klass)
 	GtkWidgetClass *widget_class;
 
 	parent_class = gtk_type_class (gtk_table_get_type());
-
 	object_class = (GtkObjectClass *) klass;
 	widget_class = (GtkWidgetClass *) klass;
 
+	mts_signals [CHANGED] = 
+		gtk_signal_new ("changed", GTK_RUN_FIRST,
+				object_class->type,
+				GTK_SIGNAL_OFFSET (EMeetingTimeSelectorClass, 
+						   changed),
+				gtk_signal_default_marshaller,
+				GTK_TYPE_NONE, 0);
+
+	gtk_object_class_add_signals (object_class, mts_signals,
+				      LAST_SIGNAL);
+
 	object_class->destroy = e_meeting_time_selector_destroy;
 
 	widget_class->realize      = e_meeting_time_selector_realize;
@@ -691,8 +709,10 @@ e_meeting_time_selector_construct (EMeetingTimeSelector * mts, EMeetingModel *em
 	e_meeting_time_selector_recalc_grid (mts);
 	e_meeting_time_selector_ensure_meeting_time_shown (mts);
 	e_meeting_time_selector_update_start_date_edit (mts);
-	e_meeting_time_selector_update_end_date_edit (mts);
+	e_meeting_time_selector_update_end_date_edit (mts);	
 	e_meeting_time_selector_update_date_popup_menus (mts);
+
+	gtk_signal_emit (GTK_OBJECT (mts), mts_signals [CHANGED]);
 }
 
 
@@ -1092,13 +1112,37 @@ e_meeting_time_selector_set_meeting_time (EMeetingTimeSelector *mts,
 	gtk_widget_queue_draw (mts->display_top);
 	gtk_widget_queue_draw (mts->display_main);
 
-	/* Set the times in the GnomeDateEdit widgets. */
+	/* Set the times in the EDateEdit widgets. */
 	e_meeting_time_selector_update_start_date_edit (mts);
 	e_meeting_time_selector_update_end_date_edit (mts);
 
+	gtk_signal_emit (GTK_OBJECT (mts), mts_signals [CHANGED]);
+
 	return TRUE;
 }
 
+void
+e_meeting_time_selector_set_all_day (EMeetingTimeSelector *mts,
+				     gboolean all_day)
+{
+	EMeetingTime saved_time;
+
+	mts->all_day = all_day;
+	
+	e_date_edit_set_show_time (E_DATE_EDIT (mts->start_date_edit),
+				   !all_day);
+	e_date_edit_set_show_time (E_DATE_EDIT (mts->end_date_edit),
+				   !all_day);
+
+	e_meeting_time_selector_save_position (mts, &saved_time);
+	e_meeting_time_selector_recalc_grid (mts);
+	e_meeting_time_selector_restore_position (mts, &saved_time);
+
+	gtk_widget_queue_draw (mts->display_top);
+	gtk_widget_queue_draw (mts->display_main);
+	e_meeting_time_selector_update_date_popup_menus (mts);
+}
+
 
 void
 e_meeting_time_selector_set_working_hours_only (EMeetingTimeSelector *mts,
@@ -1484,7 +1528,7 @@ e_meeting_time_selector_autopick (EMeetingTimeSelector *mts,
 
 	/* Get the current meeting duration in days + hours + minutes. */
 	e_meeting_time_selector_calculate_time_difference (&mts->meeting_start_time, &mts->meeting_end_time, &duration_days, &duration_hours, &duration_minutes);
-
+	
 	/* Find the first appropriate start time. */
 	start_time = mts->meeting_start_time;
 	if (forward)
@@ -1575,9 +1619,12 @@ e_meeting_time_selector_autopick (EMeetingTimeSelector *mts,
 			/* Make sure the time is shown. */
 			e_meeting_time_selector_ensure_meeting_time_shown (mts);
 
-			/* Set the times in the GnomeDateEdit widgets. */
+			/* Set the times in the EDateEdit widgets. */
 			e_meeting_time_selector_update_start_date_edit (mts);
 			e_meeting_time_selector_update_end_date_edit (mts);
+
+			gtk_signal_emit (GTK_OBJECT (mts), mts_signals [CHANGED]);
+
 			return;
 		}
 
@@ -1622,15 +1669,21 @@ e_meeting_time_selector_find_nearest_interval (EMeetingTimeSelector *mts,
 	gint minutes_shown;
 	gboolean set_to_start_of_working_day = FALSE;
 
-	if (mts->zoomed_out) {
-		start_time->hour++;
-		start_time->minute = 0;
+	if (!mts->all_day) {
+		if (mts->zoomed_out) {
+			start_time->hour++;
+			start_time->minute = 0;
+		} else {
+			start_time->minute += 30;
+			start_time->minute -= start_time->minute % 30;
+		}
 	} else {
-		start_time->minute += 30;
-		start_time->minute -= start_time->minute % 30;
+		g_date_add_days (&start_time->date, 1);
+		start_time->hour = 0;
+		start_time->minute = 0;	
 	}
 	e_meeting_time_selector_fix_time_overflows (start_time);
-
+	
 	*end_time = *start_time;
 	e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
 
@@ -1673,6 +1726,7 @@ e_meeting_time_selector_find_nearest_interval (EMeetingTimeSelector *mts,
 			start_time->minute += 29;
 			start_time->minute -= start_time->minute % 30;
 		}
+		
 		e_meeting_time_selector_fix_time_overflows (start_time);
 
 		*end_time = *start_time;
@@ -1692,25 +1746,31 @@ e_meeting_time_selector_find_nearest_interval_backward (EMeetingTimeSelector *mt
 	gint new_hour, minutes_shown;
 	gboolean set_to_end_of_working_day = FALSE;
 
-	new_hour = start_time->hour;
-	if (mts->zoomed_out) {
-		if (start_time->minute == 0)
-			new_hour--;
-		start_time->minute = 0;
-	} else {
-		if (start_time->minute == 0) {
-			start_time->minute = 30;
-			new_hour--;
-		} else if (start_time->minute <= 30)
+	if (!mts->all_day) {
+		new_hour = start_time->hour;
+		if (mts->zoomed_out) {
+			if (start_time->minute == 0)
+				new_hour--;
 			start_time->minute = 0;
-		else
-			start_time->minute = 30;
-	}
-	if (new_hour < 0) {
-		new_hour += 24;
+		} else {
+			if (start_time->minute == 0) {
+				start_time->minute = 30;
+				new_hour--;
+			} else if (start_time->minute <= 30)
+				start_time->minute = 0;
+			else
+				start_time->minute = 30;
+		}
+		if (new_hour < 0) {
+			new_hour += 24;
+			g_date_subtract_days (&start_time->date, 1);
+		}
+		start_time->hour = new_hour;
+	} else {
 		g_date_subtract_days (&start_time->date, 1);
+		start_time->hour = 0;
+		start_time->minute = 0;	
 	}
-	start_time->hour = new_hour;
 
 	*end_time = *start_time;
 	e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
@@ -1753,7 +1813,7 @@ e_meeting_time_selector_find_nearest_interval_backward (EMeetingTimeSelector *mt
 		} else {
 			start_time->minute -= start_time->minute % 30;
 		}
-
+		
 		*end_time = *start_time;
 		e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
 	}
@@ -2136,7 +2196,7 @@ e_meeting_time_selector_on_end_time_changed (GtkWidget *widget,
 	newtime = e_date_edit_get_time (E_DATE_EDIT (mts->end_date_edit));
 	g_date_clear (&mtstime.date, 1);
 	g_date_set_time (&mtstime.date, newtime);
-	if (!e_date_edit_get_show_time (E_DATE_EDIT (mts->end_date_edit)))
+	if (mts->all_day)
 		g_date_add_days (&mtstime.date, 1);
 
 	/* Time */
@@ -2280,7 +2340,7 @@ e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
 
 	/* Calculate the nearest half-hour or hour, depending on whether
 	   zoomed_out is set. */
-	if (e_date_edit_get_show_time (E_DATE_EDIT (mts->end_date_edit))) {
+	if (!mts->all_day) {
 		if (mts->zoomed_out) {
 			if (drag_time.minute > 30)
 				drag_time.hour++;
@@ -2295,7 +2355,6 @@ e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
 		drag_time.hour = 0;
 		drag_time.minute = 0;		
 	}
-	
 	e_meeting_time_selector_fix_time_overflows (&drag_time);
 
 	/* Now make sure we are between first_time & last_time. */
@@ -2314,11 +2373,21 @@ e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
 	if (e_meeting_time_selector_compare_times (time_to_set, &drag_time) == 0)
 		return;
 
+	/* Don't let an empty occur for all day events */
+	if (mts->all_day
+	    && mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START
+	    && e_meeting_time_selector_compare_times (&mts->meeting_end_time, &drag_time) == 0)
+		return;
+	else if (mts->all_day
+		&& mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END
+		&& e_meeting_time_selector_compare_times (&mts->meeting_start_time, &drag_time) == 0)
+		return;
+	
 	*time_to_set = drag_time;
 
 	/* Check if the start time and end time need to be switched. */
 	if (e_meeting_time_selector_compare_times (&mts->meeting_start_time,
-						 &mts->meeting_end_time) > 0) {
+						   &mts->meeting_end_time) > 0) {
 		drag_time = mts->meeting_start_time;
 		mts->meeting_start_time = mts->meeting_end_time;
 		mts->meeting_end_time = drag_time;
@@ -2330,6 +2399,7 @@ e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
 
 		set_both_times = TRUE;
 	}
+	
 
 	/* Mark the calculated positions as invalid. */
 	mts->meeting_positions_valid = FALSE;
@@ -2346,6 +2416,11 @@ e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
 	if (set_both_times
 	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END)
 		e_meeting_time_selector_update_end_date_edit (mts);
+
+	if (set_both_times
+	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END
+	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+		gtk_signal_emit (GTK_OBJECT (mts), mts_signals [CHANGED]);
 }
 
 
@@ -2460,6 +2535,11 @@ e_meeting_time_selector_timeout_handler (gpointer data)
 	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END)
 		e_meeting_time_selector_update_end_date_edit (mts);
 
+	if (set_both_times
+	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END
+	    || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+		gtk_signal_emit (GTK_OBJECT (mts), mts_signals [CHANGED]);
+
 	/* Redraw the canvases. We freeze and thaw the layouts so that they
 	   get redrawn completely. Otherwise the pixels get scrolled left or
 	   right which is not good for us (since our vertical bars have been
@@ -2493,13 +2573,12 @@ e_meeting_time_selector_remove_timeout (EMeetingTimeSelector *mts)
 static void
 e_meeting_time_selector_update_start_date_edit (EMeetingTimeSelector *mts)
 {
-	e_date_edit_set_date (E_DATE_EDIT (mts->start_date_edit),
-			      mts->meeting_start_time.date.year,
-			      mts->meeting_start_time.date.month,
-			      mts->meeting_start_time.date.day);
-	e_date_edit_set_time_of_day (E_DATE_EDIT (mts->start_date_edit),
-				     mts->meeting_start_time.hour,
-				     mts->meeting_start_time.minute);
+	e_date_edit_set_date_and_time_of_day (E_DATE_EDIT (mts->start_date_edit),
+					      g_date_year (&mts->meeting_start_time.date),
+					      g_date_month (&mts->meeting_start_time.date),
+					      g_date_day (&mts->meeting_start_time.date),
+					      mts->meeting_start_time.hour,
+					      mts->meeting_start_time.minute);
 }
 
 
@@ -2507,13 +2586,18 @@ e_meeting_time_selector_update_start_date_edit (EMeetingTimeSelector *mts)
 static void
 e_meeting_time_selector_update_end_date_edit (EMeetingTimeSelector *mts)
 {
-	e_date_edit_set_date (E_DATE_EDIT (mts->end_date_edit),
-			      mts->meeting_end_time.date.year,
-			      mts->meeting_end_time.date.month,
-			      mts->meeting_end_time.date.day);
-	e_date_edit_set_time_of_day (E_DATE_EDIT (mts->end_date_edit),
-				     mts->meeting_end_time.hour,
-				     mts->meeting_end_time.minute);
+	GDate date;
+	
+	date = mts->meeting_end_time.date;
+	if (mts->all_day)
+		g_date_subtract_days (&date, 1);
+
+	e_date_edit_set_date_and_time_of_day (E_DATE_EDIT (mts->end_date_edit),
+					      g_date_year (&date),
+					      g_date_month (&date),
+					      g_date_day (&date),
+					      mts->meeting_end_time.hour,
+					      mts->meeting_end_time.minute);
 }