Changed the destroy function to disconnect from signals before unrefing

2000-03-08  Christopher James Lahey  <clahey@helixcode.com>

        * e-table.c: Changed the destroy function to disconnect from
        signals before unrefing the objects the sinnals are on.  Changed
        the destroy function to match the objects and signal ids properly
        in its disconnect section.

        * e-table-item.c, e-table-item.h: Changed this to do follow the
        canvas rules better.

        * e-table-header-item.c, e-table-header-item.h: Made
        ETableHeaderItem connect to the "sort_info_changed" on its
        ETableSortInfo instead of just manually redrawing itself.  Fixed
        the update function a bit to follow the canvas rules a bit better.

svn path=/trunk/; revision=2087

5 files changed, 83 insertions, 45 deletions

diff --git a/widgets/table/e-table-header-item.c b/widgets/table/e-table-header-item.c
index b8fe005753..e6001d24de 100644
--- a/widgets/table/e-table-header-item.c
+++ b/widgets/table/e-table-header-item.c
@@ -75,8 +75,12 @@ ethi_destroy (GtkObject *object){
 	ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (object);
 	
 	ethi_drop_table_header (ethi);
-	if ( ethi->sort_info )
+
+	if ( ethi->sort_info ) {
+		if ( ethi->sort_info_changed_id )
+			gtk_signal_disconnect(GTK_OBJECT(ethi->sort_info), ethi->sort_info_changed_id);
 		gtk_object_unref(GTK_OBJECT(ethi->sort_info));
+	}
 	
 	if (GTK_OBJECT_CLASS (ethi_parent_class)->destroy)
 		(*GTK_OBJECT_CLASS (ethi_parent_class)->destroy) (object);
@@ -90,12 +94,20 @@ ethi_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags
 	if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update)
 		(*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update)(item, affine, clip_path, flags);
 
-	item->x1 = ethi->x1;
-	item->y1 = ethi->y1;
-	item->x2 = ethi->x1 + ethi->width;
-	item->y2 = ethi->y1 + ethi->height;
-
-	gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
+	if ( item->x1 != ethi->x1 ||
+	     item->y1 != ethi->y1 ||
+	     item->x2 != ethi->x1 + ethi->width ||
+	     item->y2 != ethi->y1 + ethi->height )
+		{
+			gnome_canvas_request_redraw(item->canvas, item->x1, item->y1, item->x2, item->y2);
+			item->x1 = ethi->x1;
+			item->y1 = ethi->y1;
+			item->x2 = ethi->x1 + ethi->width;
+			item->y2 = ethi->y1 + ethi->height;
+
+			gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
+		}
+	gnome_canvas_request_redraw(item->canvas, item->x1, item->y1, item->x2, item->y2);
 }
 
 static void
@@ -162,6 +174,12 @@ ethi_add_table_header (ETableHeaderItem *ethi, ETableHeader *header)
 }
 
 static void
+ethi_sort_info_changed (ETableSortInfo *sort_info, ETableHeaderItem *ethi)
+{
+	gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(ethi));
+}
+
+static void
 ethi_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
 {
 	GnomeCanvasItem *item;
@@ -189,8 +207,15 @@ ethi_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
 		break;
 
 	case ARG_SORT_INFO:
+		if ( ethi->sort_info ) {
+			if ( ethi->sort_info_changed_id )
+				gtk_signal_disconnect(GTK_OBJECT(ethi->sort_info), ethi->sort_info_changed_id);
+			gtk_object_unref(GTK_OBJECT(ethi->sort_info));
+		}
 		ethi->sort_info = GTK_VALUE_POINTER (*arg);
 		gtk_object_ref(GTK_OBJECT(ethi->sort_info));
+		ethi->sort_info_changed_id = gtk_signal_connect(GTK_OBJECT(ethi->sort_info), "sort_info_changed",
+								GTK_SIGNAL_FUNC(ethi_sort_info_changed), ethi);
 		break;
 		
 	}
@@ -934,7 +959,6 @@ ethi_event (GnomeCanvasItem *item, GdkEvent *e)
 				}
 			}
 			e_table_sort_info_changed(ethi->sort_info);
-			ethi_request_redraw (ethi);
 		}
 		if (needs_ungrab)
 			gnome_canvas_item_ungrab (item, e->button.time);
@@ -1007,6 +1031,8 @@ ethi_init (GnomeCanvasItem *item)
 	
 	ethi->sort_info = NULL;
 
+	ethi->sort_info_changed_id = 0;
+
 	ethi->group_indent_width = 0;
 }
 
diff --git a/widgets/table/e-table-header-item.h b/widgets/table/e-table-header-item.h
index 32d87025d6..add488d2f7 100644
--- a/widgets/table/e-table-header-item.h
+++ b/widgets/table/e-table-header-item.h
@@ -48,6 +48,7 @@ typedef struct {
 	int              click_x, click_y;
 	int              drag_col, drag_mark;
         guint            drag_motion_id, drag_end_id, drag_leave_id, drag_drop_id;
+	guint            sort_info_changed_id;
 	GnomeCanvasItem *drag_mark_item, *remove_item;
 	GdkBitmap       *stipple;
 
diff --git a/widgets/table/e-table-item.c b/widgets/table/e-table-item.c
index 1b2a4d884d..095a14ea90 100644
--- a/widgets/table/e-table-item.c
+++ b/widgets/table/e-table-item.c
@@ -134,22 +134,6 @@ eti_detach_cell_views (ETableItem *eti)
 static void
 eti_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
 {
-	double i2c [6];
-	ArtPoint c1, c2, i1, i2;
-	ETableItem *eti = E_TABLE_ITEM (item);
-
-	gnome_canvas_item_i2c_affine (item, i2c);
-	i1.x = eti->x1;
-	i1.y = eti->y1;
-	i2.x = eti->x1 + eti->width;
-	i2.y = eti->y1 + eti->height;
-	art_affine_point (&c1, &i1, i2c);
-	art_affine_point (&c2, &i2, i2c);
-
-	item->x1 = c1.x;
-	item->y1 = c1.y;
-	item->x2 = c2.x;
-	item->y2 = c2.y;
 }
 
 
@@ -159,11 +143,39 @@ eti_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y
 static void
 eti_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
 {
+	double i2c [6];
+	ArtPoint c1, c2, i1, i2;
+	ETableItem *eti = E_TABLE_ITEM (item);
+
 	if (GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->update)
 		(*GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->update)(item, affine, clip_path, flags);
+	
+	gnome_canvas_item_i2c_affine (item, i2c);
+
+	i1.x = eti->x1;
+	i1.y = eti->y1;
+	i2.x = eti->x1 + eti->width;
+	i2.y = eti->y1 + eti->height;
+	art_affine_point (&c1, &i1, i2c);
+	art_affine_point (&c2, &i2, i2c);
 
 	eti_bounds (item, &item->x1, &item->y1, &item->x2, &item->y2);
-	gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
+	if ( item->x1 != c1.x ||
+	     item->y1 != c1.y ||
+	     item->x2 != c2.x ||
+	     item->y2 != c2.y )
+		{
+			gnome_canvas_request_redraw(item->canvas, item->x1, item->y1, item->x2, item->y2);
+			item->x1 = c1.x;
+			item->y1 = c1.y;
+			item->x2 = c2.x;
+			item->y2 = c2.y;
+			eti->needs_redraw = 1;
+		}
+	if ( eti->needs_redraw ) {
+		gnome_canvas_request_redraw(item->canvas, item->x1, item->y1, item->x2, item->y2);
+		eti->needs_redraw = 0;
+	}
 }
 
 /*
@@ -338,6 +350,8 @@ eti_table_model_changed (ETableModel *table_model, ETableItem *eti)
 	eti_item_region_redraw (eti, 0, 0, eti->width, eti->height);
 }
 
+/* Unused. */
+#if 0
 /*
  * eti_request_redraw:
  *
@@ -348,6 +362,7 @@ eti_request_redraw (ETableItem *eti)
 {
 	eti_item_region_redraw (eti, eti->x1, eti->y1, eti->x1 + eti->width + 1, eti->y1 + eti->height + 1);
 }
+#endif
 
 /*
  * Computes the distance between @start_row and @end_row in pixels
@@ -452,19 +467,13 @@ eti_add_table_model (ETableItem *eti, ETableModel *table_model)
 static void
 eti_header_dim_changed (ETableHeader *eth, int col, ETableItem *eti)
 {
-	eti_request_redraw (eti);
-
-	eti->width = e_table_header_total_width (eti->header);
-	eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
-
-	eti_request_redraw (eti);
+	eti->needs_redraw = 1;
+	gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(eti));
 }
 
 static void
 eti_header_structure_changed (ETableHeader *eth, ETableItem *eti)
 {
-	eti_request_redraw (eti);
-
 	eti->cols = e_table_header_count (eti->header);
 	eti->width = e_table_header_total_width (eti->header);
 
@@ -484,10 +493,8 @@ eti_header_structure_changed (ETableHeader *eth, ETableItem *eti)
 			eti_attach_cell_views (eti);
 		}
 	}
-	
-	eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
-
-	eti_request_redraw (eti);
+	eti->needs_redraw = 1;
+	gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(eti));
 }
 
 static void
@@ -601,6 +608,8 @@ eti_init (GnomeCanvasItem *item)
 	eti->renderers_can_change_size = 1;
 	
 	eti->selection_mode = GTK_SELECTION_SINGLE;
+
+	eti->needs_redraw = 0;
 }
 
 #define gray50_width 2
@@ -1125,7 +1134,6 @@ eti_class_init (GtkObjectClass *object_class)
 	item_class->draw        = eti_draw;
 	item_class->point       = eti_point;
 	item_class->event       = eti_event;
-	item_class->bounds      = eti_bounds;
 	
 	eti_class->row_selection = eti_row_selection;
 
diff --git a/widgets/table/e-table-item.h b/widgets/table/e-table-item.h
index 635dc76922..d8f458a212 100644
--- a/widgets/table/e-table-item.h
+++ b/widgets/table/e-table-item.h
@@ -62,6 +62,8 @@ typedef struct {
 	 */
 	int              editing_col, editing_row;
 	void            *edit_ctx;
+
+  guint needs_redraw : 1;
 } ETableItem;
 
 typedef struct {
diff --git a/widgets/table/e-table.c b/widgets/table/e-table.c
index d75937d5ed..36f7d5a776 100644
--- a/widgets/table/e-table.c
+++ b/widgets/table/e-table.c
@@ -49,12 +49,6 @@ et_destroy (GtkObject *object)
 {
 	ETable *et = E_TABLE (object);
 	
-	gtk_object_unref (GTK_OBJECT (et->model));
-	gtk_object_unref (GTK_OBJECT (et->full_header));
-	gtk_object_unref (GTK_OBJECT (et->header));
-	gtk_object_unref (GTK_OBJECT (et->sort_info));
-	gtk_widget_destroy (GTK_WIDGET (et->header_canvas));
-	gtk_widget_destroy (GTK_WIDGET (et->table_canvas));
 
 	gtk_signal_disconnect (GTK_OBJECT (et->model),
 			       et->table_model_change_id);
@@ -63,9 +57,16 @@ et_destroy (GtkObject *object)
 	gtk_signal_disconnect (GTK_OBJECT (et->model),
 			       et->table_cell_change_id);
 	if (et->sort_info_change_id)
-		gtk_signal_disconnect (GTK_OBJECT (et->model),
+		gtk_signal_disconnect (GTK_OBJECT (et->sort_info),
 				       et->sort_info_change_id);
 
+	gtk_object_unref (GTK_OBJECT (et->model));
+	gtk_object_unref (GTK_OBJECT (et->full_header));
+	gtk_object_unref (GTK_OBJECT (et->header));
+	gtk_object_unref (GTK_OBJECT (et->sort_info));
+	gtk_widget_destroy (GTK_WIDGET (et->header_canvas));
+	gtk_widget_destroy (GTK_WIDGET (et->table_canvas));
+
 	if (et->rebuild_idle_id) {
 		g_source_remove(et->rebuild_idle_id);
 		et->rebuild_idle_id = 0;