Method prependChild

libs/JSystem/J2DGraph/J2DPane.cpp:221–233

}

bool J2DPane::prependChild(J2DPane* child)
{
    if (child == nullptr) {
        return false;
    }
    J2DPane* oldParent = child->getParentPane();
    bool prependResult = mTree.prependChild(&child->mTree);
    if ((prependResult) && oldParent == nullptr) {
        child->add(mBounds.i.x, mBounds.i.y);
        child->calcMtx();
    }
    return prependResult;
}

bool J2DPane::insertChild(J2DPane* before, J2DPane* child)
{