AA gnome canvas

[David BOUCHER <bouda1 club-internet fr>]

Hello,

The patch proposed here should correct two problems :
1- When we have a AA canvas already displayed and we want to create a 
new object, it is not displayed after its creation (just a problem with 
the clipping zone...)
2- When we create an object and we move it just after its creation, the 
object is not displayed (the canvas updates the rectangle where the 
object is defined, not the rectangle where it is moved to...)

So, the file joined tries to correct those problems. I hope it will be 
helpful...
--- gnome-libs-1.2.13/libgnomeui/gnome-canvas.c	Mon Jan  8 18:51:06 2001
+++ gnome-libs-1.2.13.David/libgnomeui/gnome-canvas.c	Tue Jun 12 14:34:50 2001
@@ -245,13 +245,28 @@ gnome_canvas_item_newv (GnomeCanvasGroup
 static void
 item_post_create_setup (GnomeCanvasItem *item)
 {
+        double tx1, ty1, tx2, ty2;
+        int x1, y1, x2, y2;
 	GtkObject *obj;
 
 	obj = GTK_OBJECT (item);
 
 	group_add (GNOME_CANVAS_GROUP (item->parent), item);
 
-	gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2 + 1, item->y2 + 1);
+	if (GNOME_CANVAS_ITEM_CLASS (item->object.klass)->bounds) {
+		(* GNOME_CANVAS_ITEM_CLASS (item->object.klass)->bounds) (
+                                     item, &tx1, &ty1, &tx2, &ty2);
+
+                gnome_canvas_item_i2w (item, &tx1, &ty1);
+                gnome_canvas_item_i2w (item, &tx2, &ty2);
+
+                gnome_canvas_w2c (item->canvas, tx1, ty1, &x1, &y1);
+                gnome_canvas_w2c (item->canvas, tx2, ty2, &x2, &y2);
+        }
+        else
+                x1 = y1 = x2 = y2 = 0;
+
+	gnome_canvas_request_redraw (item->canvas, x1, y1, x2 + 1, y2 + 1);
 	item->canvas->need_repick = TRUE;
 }
 
@@ -446,6 +461,7 @@ gnome_canvas_item_invoke_update (GnomeCa
 #endif
 
 	child_flags = flags;
+        
 	if (!(item->object.flags & GNOME_CANVAS_ITEM_VISIBLE))
 		child_flags &= ~GNOME_CANVAS_UPDATE_IS_VISIBLE;
 
@@ -645,6 +661,8 @@ gnome_canvas_item_setv (GnomeCanvasItem 
 void
 gnome_canvas_item_affine_relative (GnomeCanvasItem *item, const double affine[6])
 {
+	double tx1, ty1, tx2, ty2;
+        int x1, y1, x2, y2;
 	double *new_affine;
 	int i;
 
@@ -699,8 +717,25 @@ gnome_canvas_item_affine_relative (Gnome
 
 	if (!(item->object.flags & GNOME_CANVAS_ITEM_NEED_AFFINE)) {
 		item->object.flags |= GNOME_CANVAS_ITEM_NEED_AFFINE;
-		if (item->parent != NULL)
+		if (item->parent != NULL) {
+                        if(item->parent->object.flags & GNOME_CANVAS_ITEM_NEED_UPDATE)
+                           	if (GNOME_CANVAS_ITEM_CLASS (item->object.klass)->bounds) {
+                                        (* GNOME_CANVAS_ITEM_CLASS (item->object.klass)->bounds) (
+                                                                                                  item, &tx1, &ty1, &tx2, &ty2);
+
+                                        gnome_canvas_item_i2w (item, &tx1, &ty1);
+                                        gnome_canvas_item_i2w (item, &tx2, &ty2);
+
+                                        gnome_canvas_w2c (item->canvas, tx1, ty1, &x1, &y1);
+                                        gnome_canvas_w2c (item->canvas, tx2, ty2, &x2, &y2);
+                                }
+                                else
+                                        x1 = y1 = x2 = y2 = 0;
+
+                        gnome_canvas_request_redraw (item->canvas, x1, y1, x2 + 1, y2 + 1);
+
 			gnome_canvas_item_request_update (item->parent);
+                }
 		else
 			gnome_canvas_request_update (item->canvas);
 	}