Bugfix 4424

When using the button in a RenderLayer node to render a single node, the
new 'render to fullscreen' crashed in end. Reason; the node editor was
still handling events after a render, as if the node editor was still open.

source/blender/src/drawnode.c

@@ -830,6 +830,7 @@ static int node_composit_buts_renderlayers(uiBlock *block, bNodeTree *ntree, bNo
 		MEM_freeN(strp);
 		
 		/* re-render */
+		/* uses custom2, not the best implementation of the world... but we need it to work now :) */
 		bt= uiDefIconButS(block, TOG, B_NODE_EXEC+node->nr, ICON_SCENE, 
 				  butr->xmax-20, butr->ymin, 20, 19, 
 				  &node->custom2, 0, 0, 0, 0, "Re-render this Layer");

source/blender/src/editnode.c

@@ -284,15 +284,20 @@ static void composit_node_event(SpaceNode *snode, short event)
 			bNode *node= BLI_findlink(&snode->edittree->nodes, event-B_NODE_EXEC);
 			if(node) {
 				NodeTagChanged(snode->edittree, node);
+				
 				/* not the best implementation of the world... but we need it to work now :) */
-				if(node->type==CMP_NODE_R_LAYERS && node->custom2)
+				if(node->type==CMP_NODE_R_LAYERS && node->custom2) {
 					composite_node_render(snode, node);
+					/* new event, a render can go fullscreen and open new window */
+					addqueue(curarea->win, UI_BUT_EVENT, B_NODE_TREE_EXEC);
+				}
 				else {
 					node= snode_get_editgroup(snode);
 					if(node)
 						NodeTagIDChanged(snode->nodetree, node->id);
+					
+					snode_handle_recalc(snode);
 				}
-				snode_handle_recalc(snode);
 			}
 		}			
 	}

source/blender/src/header_node.c

@@ -200,7 +200,7 @@ void do_node_addmenu(void *arg, int event)
 	areamouseco_to_ipoco(G.v2d, mval, &locx, &locy);
 	node_add_node(snode, event, locx, locy);
 	
-	addqueue(curarea->win, B_NODE_TREE_EXEC, 1);
+	addqueue(curarea->win, UI_BUT_EVENT, B_NODE_TREE_EXEC);
 	
 	BIF_undo_push("Add Node");