sources_dock.py 文件源码

def __init__(self, sandbox, *args, **kwargs):
            QtGui.QMenu.__init__(self, *args, **kwargs)
            self.setTitle('Add Source')
            self.sandbox = sandbox

            backends = set(src.display_backend for src in __sources__)

            for ibe, be in enumerate(backends):
                self.addSection(be)

                for src in [s for s in __sources__
                            if s.display_backend == be]:
                    self.addSourceDelegate(src)

                if ibe is not len(backends) - 1:
                    self.addSeparator()