Method updatePath

plugins/flake/pathshapes/rectangle/RectangleShape.cpp:103–212

}

void RectangleShape::updatePath(const QSizeF &size)
{
    qreal rx = 0;
    qreal ry = 0;
    if (m_cornerRadiusX > 0 && m_cornerRadiusY > 0) {
        rx = size.width() / 200.0 * m_cornerRadiusX;
        ry = size.height() / 200.0 * m_cornerRadiusY;
    }

    qreal x2 = size.width() - rx;
    qreal y2 = size.height() - ry;

    QPointF curvePoints[12];

    int requiredCurvePointCount = 4;
    if (rx && m_cornerRadiusX < 100) {
        requiredCurvePointCount += 2;
    }
    if (ry && m_cornerRadiusY < 100) {
        requiredCurvePointCount += 2;
    }

    createPoints(requiredCurvePointCount);

    KoSubpath &points = *subpaths()[0];

    int cp = 0;

    // first path starts and closes path
    points[cp]->setProperty(KoPathPoint::StartSubpath);
    points[cp]->setProperty(KoPathPoint::CloseSubpath);
    points[cp]->setPoint(QPointF(rx, 0));
    points[cp]->removeControlPoint1();
    points[cp]->removeControlPoint2();

    if (m_cornerRadiusX < 100 || m_cornerRadiusY == 0) {
        // end point of the top edge
        points[++cp]->setPoint(QPointF(x2, 0));
        points[cp]->removeControlPoint1();
        points[cp]->removeControlPoint2();
    }

    if (rx) {
        // the top right radius
        arcToCurve(rx, ry, 90, -90, points[cp]->point(), curvePoints);
        points[cp]->setControlPoint2(curvePoints[0]);
        points[++cp]->setControlPoint1(curvePoints[1]);
        points[cp]->setPoint(curvePoints[2]);
        points[cp]->removeControlPoint2();
    }

    if (m_cornerRadiusY < 100 || m_cornerRadiusX == 0) {
        // the right edge
        points[++cp]->setPoint(QPointF(size.width(), y2));
        points[cp]->removeControlPoint1();
        points[cp]->removeControlPoint2();
    }