Layer Clipping cocos2d-x

gistfile1.cpp

//http://codewars.net/304/layer-clipping-in-cocos2d-x/

void CCClippingLayer::visit()
{
    // quick return if not visible
    if (!getIsVisible())
    {
        return;
    }

    glPushMatrix(); 
    glEnable(GL_SCISSOR_TEST);
 
    CCEGLView::sharedOpenGLView().setScissorInPoints(    // scissorRect is the rectangle you want to show.
        clippingRegion.origin.x + getPosition().x, clippingRegion.origin.y + getPosition().y,
        clippingRegion.size.width, clippingRegion.size.height);
 
    CCNode::visit();
    glDisable(GL_SCISSOR_TEST);
    glPopMatrix();
}