void CScrollView::relocateContainer()
{
Vec2 tOffset = getContentOffset();
if( validateOffset(tOffset) )
{
setContentOffsetEaseInWithoutCheck(tOffset, CSCORLLVIEW_RELOCATE_DURATION, CSCROLLVIEW_MOVE_EASEIN_RATE);
}
}
void CScrollView::setContentOffsetEaseIn(Vec2 tOffset, float fDuration, float fRate)
{
if( !m_bBounceable )
{
validateOffset(tOffset);
}
setContentOffsetEaseInWithoutCheck(tOffset, fDuration, fRate);
}
void CScrollView::setContentOffsetInDuration(Point tOffset, float fDuration)
{
if( !m_bBounceable )
{
validateOffset(tOffset);
}
setContentOffsetInDurationWithoutCheck(tOffset, fDuration);
}
void CScrollView::performedDeaccelerateScrolling(float dt)
{
if( m_bDragging )
{
stoppedDeaccelerateScroll();
return;
}
Vec2 tOldOffset;
Vec2 tNewOffset;
float fDistance = m_fDragSpeed * dt;
switch( m_eDirection )
{
case eScrollViewDirectionHorizontal:
fDistance = m_tScrollDistance.x < 0 ? -fDistance : fDistance;
tNewOffset = getContentOffset() + Vec2(fDistance, 0);
break;
default:
fDistance = m_tScrollDistance.y < 0 ? -fDistance : fDistance;
tNewOffset = getContentOffset() + Vec2(0, fDistance);
break;
}
tOldOffset = tNewOffset;
bool bOutOfView = validateOffset(tNewOffset);
if( bOutOfView && !m_bBounceable )
{
setContentOffsetWithoutCheck(tNewOffset);
stoppedDeaccelerateScroll();
return;
}
setContentOffsetWithoutCheck(tOldOffset);
if( bOutOfView )
{
m_fDragSpeed = MIN(CSCROLLVIEW_DEACCELERATE_MAX, m_fDragSpeed);
m_fDragSpeed = m_fDragSpeed - CSCROLLVIEW_DEACCELERATE_VA * dt;
}
else
{
m_fDragSpeed = CSCROLLVIEW_DEACCELERATE_PERCENTAGE * m_fDragSpeed - CSCROLLVIEW_DEACCELERATE_VA * dt;
}
if( m_fDragSpeed <= 0 )
{
stoppedDeaccelerateScroll();
if( bOutOfView )
{
relocateContainerWithoutCheck(tNewOffset);
}
else
{
onDeaccelerateScrollEnded();
}
}
}
void CScrollView::setContentOffset(CCPoint tOffset)
{
if( !m_bBounceable )
{
validateOffset(tOffset);
}
m_pContainer->setPosition(tOffset);
this->onScrolling();
this->executeScrollingHandler(this);
}
void CScrollView::setContentOffset(Vec2 tOffset)
{
if( !m_bBounceable )
{
validateOffset(tOffset);
}
m_pContainer->stopActionByTag(CSCROLLVIEW_MOVE_ACTION_TAG);
m_pContainer->setPosition(tOffset);
this->onScrolling();
this->executeScrollingHandler(this);
}
Structure* Structure::addPropertyTransitionToExistingStructure(Structure* structure, PropertyName propertyName, unsigned attributes, JSCell* specificValue, PropertyOffset& offset)
{
ASSERT(!structure->isDictionary());
ASSERT(structure->isObject());
if (Structure* existingTransition = structure->m_transitionTable.get(propertyName.uid(), attributes)) {
JSCell* specificValueInPrevious = existingTransition->m_specificValueInPrevious.get();
if (specificValueInPrevious && specificValueInPrevious != specificValue)
return 0;
validateOffset(existingTransition->m_offset, structure->m_typeInfo.type());
offset = existingTransition->m_offset;
return existingTransition;
}
return 0;
}
void CScrollView::onTouchEnded(Touch *pTouch, float fDuration)
{
if( m_pSelectedWidget && !m_bTouchMoved && !m_pSelectedWidget->isTouchInterrupted() )
{
m_pSelectedWidget->executeTouchEndedHandler(pTouch, fDuration);
m_bTouchMoved = false;
m_bDragging = false;
return;
}
if( m_bDragable )
{
if( m_bDeaccelerateable && m_eDirection != eScrollViewDirectionBoth && fDuration < CSCROLLVIEW_DEACCELERATE_INTERVAL )
{
Vec2 tEndPoint = convertToNodeSpace(pTouch->getLocation());
switch( m_eDirection )
{
case eScrollViewDirectionHorizontal:
m_fDragSpeed = abs( m_tTouchBeganPoint.x - tEndPoint.x ) / fDuration;
break;
default:
m_fDragSpeed = abs( m_tTouchBeganPoint.y - tEndPoint.y ) / fDuration;
break;
}
perpareDeaccelerateScroll();
}
else
{
Vec2 tOffset = getContentOffset();
if( validateOffset(tOffset) )
{
relocateContainerWithoutCheck(tOffset);
}
else
{
onDraggingScrollEnded();
}
}
}
m_bTouchMoved = false;
m_bDragging = false;
}
