c++ - How to place QGraphicsSimpleTextItem in the middle of a QGraphicsLineItem? -

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I inherited the kgfixicsline itam for a new class, whose name is linepointline. When I create a point line in every way, I have to put some text in the center of the line: 

  // Draw Line Setline (localPoint1.X (), localPoint1.Y (), LocalPoint 2.x (), Local Point 2.Y ()); // Set the parent item for the text, so it can be appropriately deleted later .setParentItem (this); Text.setPos ((localPoint1.X () + localPoint2.X ()) / 2, (localPoint1.Y () + localPoint2.Y ()) / 2); Text.setText ("some");

However, the text does not appear in the middle of the line ... How can I fix this?

I think that when you set the text as a child of the line, its The coordinates should be relative to it. You will do something like 

  text.setPos ((width ()) / 2,0);

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