Hi, All.

I'm looking on the function CMapQMAP::zoom(bool zoomIn, const QPoint& p0)

sigChange will be sent two times: first at zoom(zoomidx) and second at 
the end of the function. It decrees performance, so we should think up 
any workaroud. I can't found how block the defined signal in QT and 
block all signals seen dangerous.

I have two solve of this problem:
1. add a object argument for each signal.
2. add parameter generateSigXXX in a function with default value True.

think first solve is more stronger.


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