Maple Leafs acquire C Primeau from Flames
The Maple Leafs will also receive a second-round draft pick in 2011, and Calgary will get a 2012 seventh-round pick in the deal announced Monday.
Primeau, 33, had four assists in 24 games with the Flames last season. He missed 58 regular-season games and the playoffs due to a foot injury.
Stralman recorded one goal and 12 assists with the Leafs in 38 games.
Stuart, 27, was originally acquired by Toronto in a trade with Atlanta on July 1. He scored five goals and added three assists in 33 games with the Thrashers last season.