Bug fix: convert point to expected coordinate
Bug fix: convert point to expected coordinate

When calling Drag or Touch listener, the passed point should
convert coordinate from Preview-of-Workspace to
Original-Source-Image

z7z8th/aster,walkingice/aster,liuyq/aster,leijian/aster,cuongmv162/aster,Ryan2009/aster,z7z8th/aster,cuongmv162/aster,Ryan2009/aster,kanru/aster,Ryan2009/aster,liuyq/aster,leijian/aster,walkingice/aster,liuyq/aster,z7z8th/aster,kanru/aster,leijian/aster,walkingice/aster,kanru/aster,cuongmv162/aster