void UIListView::drag(float offset)
{
if (m_children->count() <= 0)
{
return;
}
scrollChildren(offset);
}
void ScrollView::handleMoveLogic(Touch *touch)
{
Vec2 touchPositionInNodeSpace = this->convertToNodeSpace(touch->getLocation());
Vec2 previousTouchPositionInNodeSpace = this->convertToNodeSpace(touch->getPreviousLocation());
Vec2 delta = touchPositionInNodeSpace - previousTouchPositionInNodeSpace;
scrollChildren(delta);
// Gather touch move information for speed calculation
gatherTouchMove(delta);
}
void ScrollView::handleMoveLogic(Touch *touch)
{
Vec3 currPt, prevPt;
if(!calculateCurrAndPrevTouchPoints(touch, &currPt, &prevPt))
{
return;
}
Vec3 delta3 = currPt - prevPt;
Vec2 delta(delta3.x, delta3.y);
scrollChildren(delta);
// Gather touch move information for speed calculation
gatherTouchMove(delta);
}
void UIListView::handleMoveLogic(const Point &touchPoint)
{
Point nsp = _renderer->convertToNodeSpace(touchPoint);
float offset = 0.0f;
switch (_direction)
{
case LISTVIEW_DIR_VERTICAL: // vertical
{
float moveY = nsp.y;
offset = moveY - _touchMoveStartLocation;
_touchMoveStartLocation = moveY;
if (offset < 0.0f)
{
_moveDirection = LISTVIEW_MOVE_DIR_DOWN; // down
}
else if (offset > 0.0f)
{
_moveDirection = LISTVIEW_MOVE_DIR_UP; // up
}
}
break;
case LISTVIEW_DIR_HORIZONTAL: // horizontal
{
float moveX = nsp.x;
offset = moveX - _touchMoveStartLocation;
_touchMoveStartLocation = moveX;
if (offset < 0)
{
_moveDirection = LISTVIEW_MOVE_DIR_LEFT; // left
}
else if (offset > 0)
{
_moveDirection = LISTVIEW_MOVE_DIR_RIGHT; // right
}
}
break;
default:
break;
}
scrollChildren(offset);
}
void UIScrollViewP::handleMoveLogic(const CCPoint &touchPoint)
{
CCPoint nsp = m_pRenderer->convertToNodeSpace(touchPoint);
float offset = 0.0f;
switch (m_eDirection)
{
case SCROLLVIEW_DIR_VERTICAL: // vertical
{
float moveY = nsp.y;
offset = moveY - m_fTouchMoveStartLocation;
m_fTouchMoveStartLocation = moveY;
if (offset < 0.0f)
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_DOWN; // down
}
else if (offset > 0.0f)
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_UP; // up
}
}
break;
case SCROLLVIEW_DIR_HORIZONTAL: // horizontal
{
float moveX = nsp.x;
offset = moveX - m_fTouchMoveStartLocation;
m_fTouchMoveStartLocation = moveX;
if (offset < 0)
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_LEFT; // left
}
else if (offset > 0)
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_RIGHT; // right
}
}
break;
default:
break;
}
scrollChildren(offset);
}
void ScrollView::handleMoveLogic(Touch *touch)
{
Vec3 currPt, prevPt;
if (nullptr == _hittedByCamera ||
false == hitTest(touch->getLocation(), _hittedByCamera, &currPt) ||
false == hitTest(touch->getPreviousLocation(), _hittedByCamera, &prevPt))
{
return;
}
Vec3 delta3 = currPt - prevPt;
Vec2 delta(delta3.x, delta3.y);
scrollChildren(delta.x, delta.y);
while(_inertiaTouchDisplacements.size() > 5)
{
_inertiaTouchDisplacements.pop_front();
_inertiaTouchTimeDeltas.pop_front();
}
_inertiaTouchDisplacements.push_back(delta);
long long timestamp = utils::getTimeInMilliseconds();
_inertiaTouchTimeDeltas.push_back((timestamp - _inertiaPrevTouchTimestamp) / 1000.0f);
_inertiaPrevTouchTimestamp = timestamp;
}
void UIListView::autoScrollChildren(float dt)
{
switch (_direction)
{
case LISTVIEW_DIR_VERTICAL: // vertical
switch (_moveDirection)
{
case LISTVIEW_MOVE_DIR_UP: // up
{
float curDis = getCurAutoScrollDistance(dt);
if (curDis <= 0)
{
curDis = 0;
stopAutoScrollChildren();
}
if (!scrollChildren(curDis))
{
stopAutoScrollChildren();
}
}
break;
case LISTVIEW_MOVE_DIR_DOWN: // down
{
float curDis = getCurAutoScrollDistance(dt);
if (curDis <= 0)
{
curDis = 0;
stopAutoScrollChildren();
}
if (!scrollChildren(-curDis))
{
stopAutoScrollChildren();
}
}
break;
default:
break;
}
break;
case LISTVIEW_DIR_HORIZONTAL: // horizontal
switch (_moveDirection)
{
case LISTVIEW_MOVE_DIR_LEFT: // left
{
float curDis = getCurAutoScrollDistance(dt);
if (curDis <= 0)
{
curDis = 0;
stopAutoScrollChildren();
}
if (!scrollChildren(-curDis))
{
stopAutoScrollChildren();
}
}
break;
case LISTVIEW_MOVE_DIR_RIGHT: // right
{
float curDis = getCurAutoScrollDistance(dt);
if (curDis <= 0)
{
curDis = 0;
stopAutoScrollChildren();
}
if (!scrollChildren(curDis))
{
stopAutoScrollChildren();
}
}
break;
default:
break;
}
break;
default:
break;
}
}
void QWidgetPrivate::scroll_sys(int dx, int dy)
{
Q_Q(QWidget);
scrollChildren(dx, dy);
scrollRect(q->rect(), dx, dy);
}
void UIScrollViewP::scrollToTop()
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_DOWN; // down
scrollChildren(-m_pInnerContainer->getSize().height);
}
void UIScrollViewP::scrollToBottom()
{
m_eMoveDirection = SCROLLVIEW_MOVE_DIR_UP; // up
scrollChildren(m_pInnerContainer->getSize().height);
}
