void ScrollView::jumpToBottomLeft()
{
if (_direction != Direction::BOTH)
{
CCLOG("Scroll direction is not both!");
return;
}
jumpToDestination(Vec2::ZERO);
}
void ScrollView::jumpToTopLeft()
{
if (_direction != Direction::BOTH)
{
CCLOG("Scroll direction is not both!");
return;
}
jumpToDestination(Vec2(0.0f, _contentSize.height - _innerContainer->getContentSize().height));
}
void ScrollView::jumpToBottomRight()
{
if (_direction != Direction::BOTH)
{
CCLOG("Scroll direction is not both!");
return;
}
jumpToDestination(Vec2(_contentSize.width - _innerContainer->getContentSize().width, 0.0f));
}
void ScrollView::jumpToPercentBothDirection(const Vec2& percent)
{
if (_direction != Direction::BOTH)
{
return;
}
float minY = _contentSize.height - _innerContainer->getContentSize().height;
float h = - minY;
float w = _innerContainer->getContentSize().width - _contentSize.width;
jumpToDestination(Vec2(-(percent.x * w / 100.0f), minY + percent.y * h / 100.0f));
}
void ScrollView::jumpToPercentVertical(float percent)
{
if (percent < 0.f)
percent = 0.f;
else if( percent > 100.f)
percent = 100.f;
float minY = _contentSize.height - _innerContainer->getContentSize().height;
float h = - minY;
jumpToDestination(Vec2(_innerContainer->getPosition().x, minY + percent * h / 100.0f));
}
void ListView::jumpToItem(ssize_t itemIndex, const Vec2& positionRatioInView, const Vec2& itemAnchorPoint)
{
Widget* item = getItem(itemIndex);
if (item == nullptr)
{
return;
}
doLayout();
Vec2 destination = calculateItemDestination(positionRatioInView, item, itemAnchorPoint);
if(!_bounceEnabled)
{
Vec2 delta = destination - getInnerContainerPosition();
Vec2 outOfBoundary = getHowMuchOutOfBoundary(delta);
destination += outOfBoundary;
}
jumpToDestination(destination);
}
void ScrollView::jumpToPercentHorizontal(float percent)
{
float w = _innerContainer->getContentSize().width - _contentSize.width;
jumpToDestination(Vec2(-(percent * w / 100.0f), _innerContainer->getPosition().y));
}
void ScrollView::jumpToRight()
{
jumpToDestination(Vec2(_contentSize.width - _innerContainer->getContentSize().width, _innerContainer->getPosition().y));
}
void ScrollView::jumpToLeft()
{
jumpToDestination(Vec2(0.0f, _innerContainer->getPosition().y));
}
void ScrollView::jumpToTop()
{
jumpToDestination(Vec2(_innerContainer->getPosition().x,
_contentSize.height - _innerContainer->getContentSize().height));
}
void ScrollView::jumpToBottom()
{
jumpToDestination(Vec2(_innerContainer->getPosition().x, 0.0f));
}