onCommandChanged: onContentChanged: onDynamicChanged: onDynDrawEnded: onFirstRegen: onGestureBegan: onGestureEnded: onGestureShouldBegin: onResizeFrame: onSelectionChanged: onShapeClicked: onShapeDblClick: onShapeDeleted: onShapesRecorded: onShapeWillDelete: onZoomChanged:

onSelectionChanged:() - (void GiPaintViewDelegate) onSelectionChanged: (id)  view optional 图形选择集改变的通知