Fixes #43029

2003-05-15  JP Rosevear  <jpr@ximian.com>

 	Fixes #43029

 	* gui/e-week-view.c (e_week_view_init): don't listen for destroy
 	signal
 	(e_week_view_destroy): check for NULL and make invisible NULL
 	after we destroy it, unref cursors and NULL them out as well,
 	guard against freeing events multiple times

 	* gui/e-day-view.c (e_day_view_destroy): check for NULL and make
 	invisible NULL after we destroy it, unref cursors and NULL them
 	out as well, guard against freeing events multiple times
 	(e_day_view_init): don't listen for destroy signal

 	* gui/e-calendar-table.c (e_calendar_table_init): don't listen for
 	destroy signal
 	(e_calendar_table_destroy): check for NULL and make invisible NULL
 	after we destroy it

svn path=/trunk/; revision=21208

3 files changed, 55 insertions, 49 deletions

diff --git a/calendar/gui/e-calendar-table.c b/calendar/gui/e-calendar-table.c
index 6f31455fb8..c55875d943 100644
--- a/calendar/gui/e-calendar-table.c
+++ b/calendar/gui/e-calendar-table.c
@@ -109,8 +109,6 @@ static void selection_get                       (GtkWidget *invisible,
 						 guint info,
 						 guint time_stamp,
 						 ECalendarTable *cal_table);
-static void invisible_destroyed                 (GtkWidget *invisible,
-						 ECalendarTable *cal_table);
 static struct tm e_calendar_table_get_current_time (ECellDateEdit *ecde,
 						    gpointer data);
 static void mark_row_complete_cb (int model_row, gpointer data);
@@ -534,8 +532,6 @@ e_calendar_table_init (ECalendarTable *cal_table)
 			  G_CALLBACK (selection_clear_event), cal_table);
 	g_signal_connect (cal_table->invisible, "selection_received",
 			  G_CALLBACK (selection_received), cal_table);
-	g_signal_connect_after (cal_table->invisible, "destroy",
-				G_CALLBACK (invisible_destroyed), cal_table);
 
 	cal_table->clipboard_selection = NULL;
 }
@@ -588,8 +584,10 @@ e_calendar_table_destroy (GtkObject *object)
 		cal_table->model = NULL;
 	}
 	
-	if (cal_table->invisible)
+	if (cal_table->invisible) {
 		gtk_widget_destroy (cal_table->invisible);
+		cal_table->invisible = NULL;
+	}
 	if (cal_table->clipboard_selection) {
 		g_free (cal_table->clipboard_selection);
 		cal_table->clipboard_selection = NULL;
@@ -1174,13 +1172,6 @@ e_calendar_table_save_state (ECalendarTable	*cal_table,
 			    filename);
 }
 
-
-static void
-invisible_destroyed (GtkWidget *invisible, ECalendarTable *cal_table)
-{
-	cal_table->invisible = NULL;
-}
-
 static void
 selection_get (GtkWidget *invisible,
 	       GtkSelectionData *selection_data,
diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index 9c29b00356..6764085741 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -465,7 +465,6 @@ static void selection_get (GtkWidget *invisible,
 			   guint info,
 			   guint time_stamp,
 			   EDayView *day_view);
-static void invisible_destroyed (GtkWidget *invisible, EDayView *day_view);
 
 static void e_day_view_queue_layout (EDayView *day_view);
 static void e_day_view_cancel_layout (EDayView *day_view);
@@ -843,8 +842,6 @@ e_day_view_init (EDayView *day_view)
 			  G_CALLBACK (selection_clear_event), (gpointer) day_view);
 	g_signal_connect (day_view->invisible, "selection_received",
 			  G_CALLBACK (selection_received), (gpointer) day_view);
-	g_signal_connect_after (day_view->invisible, "destroy",
-				G_CALLBACK (invisible_destroyed), (gpointer) day_view);
 
 	day_view->clipboard_selection = NULL;
 
@@ -920,21 +917,41 @@ e_day_view_destroy (GtkObject *object)
 		day_view->default_category = NULL;
 	}
 
-	gdk_cursor_destroy (day_view->normal_cursor);
-	gdk_cursor_destroy (day_view->move_cursor);
-	gdk_cursor_destroy (day_view->resize_width_cursor);
-	gdk_cursor_destroy (day_view->resize_height_cursor);
+	
+	if (day_view->normal_cursor) {
+		gdk_cursor_unref (day_view->normal_cursor);
+		day_view->normal_cursor = NULL;
+	}
+	if (day_view->move_cursor) {
+		gdk_cursor_unref (day_view->move_cursor);
+		day_view->move_cursor = NULL;
+	}
+	if (day_view->resize_width_cursor) {
+		gdk_cursor_unref (day_view->resize_width_cursor);
+		day_view->resize_width_cursor = NULL;
+	}
+	if (day_view->resize_height_cursor) {
+		gdk_cursor_unref (day_view->resize_height_cursor);
+		day_view->resize_height_cursor = NULL;
+	}
 
-	e_day_view_free_events (day_view);
-	g_array_free (day_view->long_events, TRUE);
-	day_view->long_events = NULL;
+	if (day_view->long_events) {
+		e_day_view_free_events (day_view);
+		g_array_free (day_view->long_events, TRUE);
+		day_view->long_events = NULL;
+	}
+	
 	for (day = 0; day < E_DAY_VIEW_MAX_DAYS; day++) {
-		g_array_free (day_view->events[day], TRUE);
-		day_view->events[day] = NULL;
+		if (day_view->events[day]) {
+			g_array_free (day_view->events[day], TRUE);
+			day_view->events[day] = NULL;
+		}
 	}
 
-	if (day_view->invisible)
+	if (day_view->invisible) {
 		gtk_widget_destroy (day_view->invisible);
+		day_view->invisible = NULL;
+	}
 	if (day_view->clipboard_selection) {
 		g_free (day_view->clipboard_selection);
 		day_view->clipboard_selection = NULL;
@@ -7572,12 +7589,6 @@ e_day_view_get_time_string_width	(EDayView	*day_view)
 }
 
 static void
-invisible_destroyed (GtkWidget *invisible, EDayView *day_view)
-{
-	day_view->invisible = NULL;
-}
-
-static void
 selection_get (GtkWidget *invisible,
 	       GtkSelectionData *selection_data,
 	       guint info,
diff --git a/calendar/gui/e-week-view.c b/calendar/gui/e-week-view.c
index 2ca52c8ca7..2e83b2c6c7 100644
--- a/calendar/gui/e-week-view.c
+++ b/calendar/gui/e-week-view.c
@@ -218,7 +218,6 @@ static gboolean e_week_view_remove_event_cb (EWeekView *week_view,
 					     gpointer data);
 static gboolean e_week_view_recalc_display_start_day	(EWeekView	*week_view);
 
-static void invisible_destroyed   (GtkWidget *invisible, EWeekView *week_view);
 static void selection_get         (GtkWidget *invisible,
 				   GtkSelectionData *selection_data,
 				   guint info,
@@ -434,8 +433,6 @@ e_week_view_init (EWeekView *week_view)
 			  G_CALLBACK (selection_clear_event), (gpointer) week_view);
 	g_signal_connect (week_view->invisible, "selection_received",
 			  G_CALLBACK (selection_received), (gpointer) week_view);
-	g_signal_connect_after (week_view->invisible, "destroy",
-				G_CALLBACK (invisible_destroyed), (gpointer) week_view);
 
 	week_view->clipboard_selection = NULL;
 
@@ -469,10 +466,12 @@ e_week_view_destroy (GtkObject *object)
 
 	e_week_view_cancel_layout (week_view);
 
-	e_week_view_free_events (week_view);
-	g_array_free (week_view->events, TRUE);
-	week_view->events = NULL;
-
+	if (week_view->events) {
+		e_week_view_free_events (week_view);
+		g_array_free (week_view->events, TRUE);
+		week_view->events = NULL;
+	}
+	
 	if (week_view->client) {
 		g_signal_handlers_disconnect_matched (week_view->client, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, week_view);
 		g_object_unref (week_view->client);
@@ -501,12 +500,23 @@ e_week_view_destroy (GtkObject *object)
 		week_view->default_category = NULL;
 	}
 
-	gdk_cursor_destroy (week_view->normal_cursor);
-	gdk_cursor_destroy (week_view->move_cursor);
-	gdk_cursor_destroy (week_view->resize_width_cursor);
-
-	if (week_view->invisible)
+	if (week_view->normal_cursor) {
+		gdk_cursor_unref (week_view->normal_cursor);
+		week_view->normal_cursor = NULL;
+	}
+	if (week_view->move_cursor) {
+		gdk_cursor_unref (week_view->move_cursor);
+		week_view->move_cursor = NULL;
+	}
+	if (week_view->resize_width_cursor) {
+		gdk_cursor_unref (week_view->resize_width_cursor);
+		week_view->resize_width_cursor = NULL;
+	}
+	
+	if (week_view->invisible) {
 		gtk_widget_destroy (week_view->invisible);
+		week_view->invisible = NULL;
+	}
 	if (week_view->clipboard_selection) {
 		g_free (week_view->clipboard_selection);
 		week_view->clipboard_selection = NULL;
@@ -4218,12 +4228,6 @@ e_week_view_get_time_string_width	(EWeekView	*week_view)
 }
 
 static void
-invisible_destroyed (GtkWidget *invisible, EWeekView *week_view)
-{
-	week_view->invisible = NULL;
-}
-
-static void
 selection_get (GtkWidget *invisible,
 	       GtkSelectionData *selection_data,
 	       guint info,