Method setCenterRectNormalized

core/2d/Sprite.cpp:706–760

}

void Sprite::setCenterRectNormalized(const ax::Rect& rectTopLeft)
{
    if (_renderMode != RenderMode::QUAD && _renderMode != RenderMode::SLICE9)
    {
        AXLOGW("Warning: Sprite::setCenterRectNormalized() only works with QUAD and SLICE9 render modes");
        return;
    }

    // FIMXE: Rect is has origin on top-left (like text coordinate).
    // but all the logic has been done using bottom-left as origin. So it is easier to invert Y
    // here, than in the rest of the places... but it is not as clean.
    Rect rect(rectTopLeft.origin.x, 1 - rectTopLeft.origin.y - rectTopLeft.size.height, rectTopLeft.size.width,
              rectTopLeft.size.height);
    if (!_centerRectNormalized.equals(rect))
    {
        _centerRectNormalized = rect;

        // convert it to 1-slice when the centerRect is not present.
        if (rect.equals(Rect(0, 0, 1, 1)))
        {
            _renderMode = RenderMode::QUAD;
            free(_trianglesVertex);
            free(_trianglesIndex);
            _trianglesVertex = nullptr;
            _trianglesIndex  = nullptr;
        }
        else
        {
            // convert it to 9-slice if it isn't already
            if (_renderMode != RenderMode::SLICE9)
            {
                _renderMode = RenderMode::SLICE9;
                // 9 quads + 7 exterior points = 16
                _trianglesVertex = (V3F_C4B_T2F*)malloc(sizeof(*_trianglesVertex) * (9 + 3 + 4));
                // 9 quads, each needs 6 vertices = 54
                _trianglesIndex = (unsigned short*)malloc(sizeof(*_trianglesIndex) * 6 * 9);

                // populate indices in CCW direction
                for (int i = 0; i < 9; ++i)
                {
                    _trianglesIndex[i * 6 + 0] = (i * 4 / 3) + 4;
                    _trianglesIndex[i * 6 + 1] = (i * 4 / 3) + 0;
                    _trianglesIndex[i * 6 + 2] = (i * 4 / 3) + 5;
                    _trianglesIndex[i * 6 + 3] = (i * 4 / 3) + 1;
                    _trianglesIndex[i * 6 + 4] = (i * 4 / 3) + 5;
                    _trianglesIndex[i * 6 + 5] = (i * 4 / 3) + 0;
                }
            }
        }

        updateStretchFactor();
        updatePoly();
        updateColor();
    }
}

void Sprite::setCenterRect(const ax::Rect& rectInPoints)
{