DataAdapterDragSourceListener.java 文件源码

private List<MDataAdapter> getDragSelection(DragSourceEvent event){
    if(event.getSource() instanceof DragSource){
        List<MDataAdapter> dataAdapters = new ArrayList<MDataAdapter>();
        Control control = ((DragSource)event.getSource()).getControl();
        if(control instanceof Tree && 
                ((Tree) control).getSelection().length>0){
            for(TreeItem tItem : ((Tree) control).getSelection()){
                Object data = tItem.getData();
                if(data instanceof MDataAdapter){
                    dataAdapters.add((MDataAdapter) data);
                }
            }
            return dataAdapters;                
        }
    }
    return new ArrayList<MDataAdapter>(0);
}