bool ScrollView::startBounceBackIfNeeded()
{
if (!_bounceEnabled)
{
return false;
}
Vec2 bounceBackAmount = getHowMuchOutOfBoundary();
if(fltEqualZero(bounceBackAmount))
{
return false;
}
startAutoScroll(bounceBackAmount, BOUNCE_BACK_DURATION, true);
return true;
}
bool ScrollView::startBounceBackIfNeeded()
{
if (!_bounceEnabled)
{
return false;
}
Vec2 outOfBoundary = getHowMuchOutOfBoundary(Vec2::ZERO);
if(outOfBoundary == Vec2::ZERO)
{
return false;
}
_bouncingBack = true;
startAutoScroll(outOfBoundary, BOUNCE_BACK_DURATION, true);
return true;
}
void ScrollView::startAttenuatingAutoScroll(const Vec2& deltaMove, const Vec2& initialVelocity)
{
float time = calculateAutoScrollTimeByInitialSpeed(initialVelocity.length());
startAutoScroll(deltaMove, time, true);
}
void ScrollView::startAutoScrollToDestination(const Vec2& destination, float timeInSec, bool attenuated)
{
startAutoScroll(destination - _innerContainer->getPosition(), timeInSec, attenuated);
}
inline void tst_startAutoScroll()
{ startAutoScroll(); }
void ScrollView::startAutoScrollChildrenWithDestination(const Vec2& des, float second, bool attenuated)
{
startAutoScroll(des - _innerContainer->getPosition(), second, attenuated);
}
void RosegardenScrollView::startAutoScroll(int directionConstraint)
{
setScrollDirectionConstraint(directionConstraint);
startAutoScroll();
}