CCScrollView with CCControlButton. How to control the touch area?

Question

I have CCScrollView with container with CCControlButtons, when the buttons scroll out of the visible CCScrollView area, They are also can be touched too. How can I control the area ?

Answer 1

My problems: There is a scrollView with many buttons (items). Above it there are 2 function buttons (return, start).

1. When I scroll down item buttons overlie function buttons. When I swallow all touches above my scrollview I will lose my function buttons. So I have to find another solution.

2. When I start draging scroll view a item button is pressed. When I ended the button action will be execute. This is very annoying.

But there is the solution. I have created new CCControlButton. It checks whether was clicked outside scrollview or was dragged. The button is used for items buttons.

bool ControlButtonForScrolling::checkIfTouchIsInsideScrollView(CCTouch *pTouch)
{
    CCPoint touchLocation = pTouch->getLocation(); // Get the touch position
    touchLocation = _scrollView->getParent()->convertToNodeSpace(touchLocation);
    CCRect bBox=_scrollView->boundingBox();
    bool result = bBox.containsPoint(touchLocation);
    return result;
}

bool ControlButtonForScrolling::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent)
{
    bool isInside = this->checkIfTouchIsInsideScrollView(pTouch);
    if (isInside) {
        return CCControlButton::ccTouchBegan(pTouch, pEvent);
    }
    else
    {
        return false;
    }
}

void ControlButtonForScrolling::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent)
{
    CCControlButton::ccTouchMoved(pTouch, pEvent);
    _scrollWasDragged = true; // information about dragging is stored to prevent sending action
}

void ControlButtonForScrolling::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent)
{
    // this method is a copy of CCControlButton::ccTouchEnded except lines with _scrollWasDragged
    m_eState = CCControlStateNormal;
    m_isPushed = false;
    setHighlighted(false);

    if (!_scrollWasDragged)
    {
        if (isTouchInside(pTouch))
        {
            sendActionsForControlEvents(CCControlEventTouchUpInside);
        }
        else
        {
            sendActionsForControlEvents(CCControlEventTouchUpOutside);
        }
    }
    _scrollWasDragged = false;
}