Method positionHandles

src/domain/UBGraphicsDelegateFrame.cpp:884–1031

void UBGraphicsDelegateFrame::positionHandles()
{
    QRectF itemRect = delegated()->boundingRect();

    if (mDelegate->getToolBarItem() && mDelegate->getToolBarItem()->isVisibleOnBoard()
        && mDelegate->getToolBarItem()->isShifting())
    {
        QPointF graphicsItemPosition = itemRect.topLeft();
        itemRect.setTopLeft(graphicsItemPosition-QPointF(0,mDelegate->getToolBarItem()->boundingRect().height()* mDelegate->antiScaleRatio()));
    }

    QTransform itemTransform = delegated()->sceneTransform();
    QPointF topLeft = itemTransform.map(itemRect.topLeft());
    QPointF topRight = itemTransform.map(itemRect.topRight());
    QPointF bottomLeft = itemTransform.map(itemRect.bottomLeft());
    QPointF bottomRight = itemTransform.map(itemRect.bottomRight());
    QPointF center = itemTransform.map(itemRect.center());
    int rotateHeight = QLineF(topLeft, bottomLeft).length();

    // Handle the mirroring
    if(topLeft.x() > topRight.x()){
        QPointF topTmp = topRight;
        QPointF bottomTmp = bottomRight;
        topRight = topLeft;
        topLeft = topTmp;
        bottomRight = bottomLeft;
        bottomLeft = bottomTmp;
    }

    if(bottomLeft.y() > topLeft.y()){
        QPointF leftTmp = bottomLeft;
        QPointF rightTmp = bottomRight;
        bottomLeft = topLeft;
        topLeft = leftTmp;
        bottomRight = topRight;
        topRight = rightTmp;
    }

    QLineF topLine(topLeft, topRight);
    qreal angle = topLine.angle();
    qreal width = topLine.length();

    QLineF leftLine(topLeft, bottomLeft);
    qreal height = leftLine.length();

    int h = rotating()?rotateHeight:height;

    if (mVisible)
    {
        setRect(center.x() - mFrameWidth - width / 2, center.y() - mFrameWidth - mTitleBarHeight - h / 2, width + 2 * mFrameWidth, h + (2 * mFrameWidth) + mTitleBarHeight);
    }
    else
    {
        setRect(center.x() - width / 2, center.y() - h / 2, width, h);
    }

    resetTransform();
    setTransform(QTransform::fromTranslate(center.x(), center.y()), true);