C++ QWheelEvent::globalY方法代码示例

//.........这里部分代码省略.........
        }

        // If there's a visible QGraphicsItem under the mouse and mouse is not in FPS mode,
        // the click's supposed to go there - don't send it at all to inworld scene.
//		if (itemUnderMouse && mouseCursorVisible)
//			return false;

        // The mouse coordinates we receive can come from different widgets, and we are interested only in the coordinates
        // in the QGraphicsView client area, so we need to remap them.
        QPoint mousePos = MapPointToMainGraphicsView(obj, e->pos());

        MouseEvent mouseEvent;
        mouseEvent.itemUnderMouse = GetVisibleItemAtCoords(e->x(), e->y());
        mouseEvent.origin = mouseEvent.itemUnderMouse ? MouseEvent::PressOriginQtWidget : MouseEvent::PressOriginScene;
        if ( !doubleClickDetected)
        {
            mouseEvent.eventType = (event->type() == QEvent::MouseButtonPress) ? MouseEvent::MousePressed : MouseEvent::MouseReleased;
        } else
        {
            mouseEvent.eventType = MouseEvent::MouseDoubleClicked;
        }
        mouseEvent.button = (MouseEvent::MouseButton)e->button();
        mouseEvent.x = mousePos.x();
        mouseEvent.y = mousePos.y();
        mouseEvent.z = 0;
        mouseEvent.relativeX = mouseEvent.x - lastMouseX;
        mouseEvent.relativeY = mouseEvent.y - lastMouseY;
        mouseEvent.modifiers = current_modifiers_;

        lastMouseX = mouseEvent.x;
        lastMouseY = mouseEvent.y;

        mouseEvent.globalX = e->globalX();
        mouseEvent.globalY = e->globalY();

        mouseEvent.otherButtons = e->buttons();

//		mouseEvent.heldKeys = heldKeys; ///\todo
        mouseEvent.handled = false;

        // The mouse press is going to the inworld scene - clear keyboard focus from the QGraphicsScene widget, if any had it so key events also go to inworld scene.
        if (event->type() == QEvent::MouseButtonPress && !mouseEvent.itemUnderMouse && mouseCursorVisible)
            mainView->scene()->clearFocus();

        TriggerMouseEvent(mouseEvent);

        return mouseEvent.handled;
    }

    case QEvent::MouseMove:
    {
        // If a mouse button is held down, we get the mouse drag events from the viewport widget.
        // If a mouse button is not held down, the application main window will get the events.
        // Duplicate events are not received, so no need to worry about filtering them here.

        QMouseEvent *e = static_cast<QMouseEvent *>(event);

        //QGraphicsItem *itemUnderMouse = GetVisibleItemAtCoords(e->x(), e->y());
        // If there is a graphicsItem under the mouse, don't pass the move message to the inworld scene, unless the inworld scene has captured it.
//        if (mouseCursorVisible)
//		    if ((itemUnderMouse && sceneMouseCapture != SceneMouseCapture) || sceneMouseCapture == QtMouseCapture)
//			    return false;

//        if (mouseCursorVisible && itemUnderMouse)
//            return false;