Method calculateFinalPositionWithRelativeWidget

core/ui/UILayoutManager.cpp:331–553

}

bool RelativeLayoutManager::calculateFinalPositionWithRelativeWidget(LayoutProtocol* layout)
{
    Vec2 ap = _widget->getAnchorPoint();
    Vec2 cs = _widget->getBoundingBox().size;

    _finalPositionX = 0.0f;
    _finalPositionY = 0.0f;

    Widget* relativeWidget = this->getRelativeWidget(_widget);

    RelativeLayoutParameter* layoutParameter = dynamic_cast<RelativeLayoutParameter*>(_widget->getLayoutParameter());

    RelativeLayoutParameter::RelativeAlign align = layoutParameter->getAlign();

    Vec2 layoutSize = layout->getLayoutContentSize();

    switch (align)
    {
    case RelativeLayoutParameter::RelativeAlign::NONE:
    case RelativeLayoutParameter::RelativeAlign::PARENT_TOP_LEFT:
        _finalPositionX = ap.x * cs.width;
        _finalPositionY = layoutSize.height - ((1.0f - ap.y) * cs.height);
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_TOP_CENTER_HORIZONTAL:
        _finalPositionX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
        _finalPositionY = layoutSize.height - ((1.0f - ap.y) * cs.height);
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_TOP_RIGHT:
        _finalPositionX = layoutSize.width - ((1.0f - ap.x) * cs.width);
        _finalPositionY = layoutSize.height - ((1.0f - ap.y) * cs.height);
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_LEFT_CENTER_VERTICAL:
        _finalPositionX = ap.x * cs.width;
        _finalPositionY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
        break;
    case RelativeLayoutParameter::RelativeAlign::CENTER_IN_PARENT:
        _finalPositionX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
        _finalPositionY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_RIGHT_CENTER_VERTICAL:
        _finalPositionX = layoutSize.width - ((1.0f - ap.x) * cs.width);
        _finalPositionY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_LEFT_BOTTOM:
        _finalPositionX = ap.x * cs.width;
        _finalPositionY = ap.y * cs.height;
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_BOTTOM_CENTER_HORIZONTAL:
        _finalPositionX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
        _finalPositionY = ap.y * cs.height;
        break;
    case RelativeLayoutParameter::RelativeAlign::PARENT_RIGHT_BOTTOM:
        _finalPositionX = layoutSize.width - ((1.0f - ap.x) * cs.width);
        _finalPositionY = ap.y * cs.height;
        break;

    case RelativeLayoutParameter::RelativeAlign::LOCATION_ABOVE_LEFTALIGN:
        if (relativeWidget)