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ScrollPane.cpp
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#include "ScrollPane.h"
#include "GList.h"
#include "GScrollBar.h"
#include "UIConfig.h"
#include "UIPackage.h"
#include "event/InputProcessor.h"
#include "tween/GTween.h"
#include "utils/ByteBuffer.h"
NS_FGUI_BEGIN
USING_NS_CC;
ScrollPane* ScrollPane::_draggingPane = nullptr;
int ScrollPane::_gestureFlag = 0;
static const float TWEEN_TIME_GO = 0.5f; //tween time for SetPos(ani)
static const float TWEEN_TIME_DEFAULT = 0.3f; //min tween time for inertial scroll
static const float PULL_RATIO = 0.5f; //pull down/up ratio
static inline float sp_getField(const Vec2& pt, int axis) { return axis == 0 ? pt.x : pt.y; }
static inline float sp_getField(const cocos2d::Size& sz, int axis) { return axis == 0 ? sz.width : sz.height; }
static void sp_setField(Vec2& pt, int axis, float value)
{
if (axis == 0)
pt.x = value;
else
pt.y = value;
}
static void sp_incField(Vec2& pt, int axis, float value)
{
if (axis == 0)
pt.x += value;
else
pt.y += value;
}
static inline float sp_EaseFunc(float t, float d)
{
t = t / d - 1;
return t * t * t + 1; //cubicOut
}
ScrollPane::ScrollPane(GComponent* owner)
: _vtScrollBar(nullptr),
_hzScrollBar(nullptr),
_header(nullptr),
_footer(nullptr),
_pageController(nullptr),
_needRefresh(false),
_refreshBarAxis(0),
_aniFlag(0),
_loop(0),
_headerLockedSize(0),
_footerLockedSize(0),
_vScrollNone(false),
_hScrollNone(false),
_tweening(0),
_xPos(0),
_yPos(0),
_floating(false),
_dontClipMargin(false),
_mouseWheelEnabled(true),
_hover(false),
_dragged(false)
{
_owner = owner;
_scrollStep = UIConfig::defaultScrollStep;
_mouseWheelStep = _scrollStep * 2;
_decelerationRate = UIConfig::defaultScrollDecelerationRate;
_touchEffect = UIConfig::defaultScrollTouchEffect;
_bouncebackEffect = UIConfig::defaultScrollBounceEffect;
_pageSize = Vec2::ONE;
_maskContainer = FUIContainer::create();
_maskContainer->setCascadeOpacityEnabled(true);
_owner->displayObject()->addChild(_maskContainer);
_container = (FUIInnerContainer*)_owner->displayObject()->getChildren().at(0);
_container->setPosition2(0, 0);
_container->removeFromParent();
_maskContainer->addChild(_container, 1);
_owner->addEventListener(UIEventType::MouseWheel, CC_CALLBACK_1(ScrollPane::onMouseWheel, this));
_owner->addEventListener(UIEventType::TouchBegin, CC_CALLBACK_1(ScrollPane::onTouchBegin, this));
_owner->addEventListener(UIEventType::TouchMove, CC_CALLBACK_1(ScrollPane::onTouchMove, this));
_owner->addEventListener(UIEventType::TouchEnd, CC_CALLBACK_1(ScrollPane::onTouchEnd, this));
_owner->addEventListener(UIEventType::Exit, [this](EventContext*) {
if (_draggingPane == this)
_draggingPane = nullptr;
});
}
ScrollPane::~ScrollPane()
{
CALL_PER_FRAME_CANCEL(ScrollPane, tweenUpdate);
CALL_LATER_CANCEL(ScrollPane, refresh);
if (_hzScrollBar)
_hzScrollBar->release();
if (_vtScrollBar)
_vtScrollBar->release();
if (_header)
_header->release();
if (_footer)
_footer->release();
if (_draggingPane == this)
_draggingPane = nullptr;
}
void ScrollPane::setup(ByteBuffer* buffer)
{
_scrollType = (ScrollType)buffer->readByte();
ScrollBarDisplayType scrollBarDisplay = (ScrollBarDisplayType)buffer->readByte();
int flags = buffer->readInt();
if (buffer->readBool())
{
_scrollBarMargin.top = buffer->readInt();
_scrollBarMargin.bottom = buffer->readInt();
_scrollBarMargin.left = buffer->readInt();
_scrollBarMargin.right = buffer->readInt();
}
const std::string& vtScrollBarRes = buffer->readS();
const std::string& hzScrollBarRes = buffer->readS();
const std::string& headerRes = buffer->readS();
const std::string& footerRes = buffer->readS();
_displayOnLeft = (flags & 1) != 0;
_snapToItem = (flags & 2) != 0;
_displayInDemand = (flags & 4) != 0;
_pageMode = (flags & 8) != 0;
if ((flags & 16) != 0)
_touchEffect = true;
else if ((flags & 32) != 0)
_touchEffect = false;
if ((flags & 64) != 0)
_bouncebackEffect = true;
else if ((flags & 128) != 0)
_bouncebackEffect = false;
_inertiaDisabled = (flags & 256) != 0;
_maskContainer->setClippingEnabled((flags & 512) == 0);
_floating = (flags & 1024) != 0;
_dontClipMargin = (flags & 2048) != 0;
if (scrollBarDisplay == ScrollBarDisplayType::DEFAULT)
{
#ifdef CC_PLATFORM_PC
scrollBarDisplay = UIConfig::defaultScrollBarDisplay;
#else
scrollBarDisplay = ScrollBarDisplayType::AUTO;
#endif
}
if (scrollBarDisplay != ScrollBarDisplayType::HIDDEN)
{
if (_scrollType == ScrollType::BOTH || _scrollType == ScrollType::VERTICAL)
{
const std::string& res = vtScrollBarRes.size() == 0 ? UIConfig::verticalScrollBar : vtScrollBarRes;
if (res.length() > 0)
{
_vtScrollBar = dynamic_cast<GScrollBar*>(UIPackage::createObjectFromURL(res));
if (_vtScrollBar == nullptr)
CCLOGWARN("FairyGUI: cannot create scrollbar from %s", res.c_str());
else
{
_vtScrollBar->retain();
_vtScrollBar->setScrollPane(this, true);
_vtScrollBar->_alignToBL = true;
_owner->displayObject()->addChild(_vtScrollBar->displayObject());
}
}
}
if (_scrollType == ScrollType::BOTH || _scrollType == ScrollType::HORIZONTAL)
{
const std::string& res = hzScrollBarRes.length() == 0 ? UIConfig::horizontalScrollBar : hzScrollBarRes;
if (res.length() > 0)
{
_hzScrollBar = dynamic_cast<GScrollBar*>(UIPackage::createObjectFromURL(res));
if (_hzScrollBar == nullptr)
CCLOGWARN("FairyGUI: cannot create scrollbar from %s", res.c_str());
else
{
_hzScrollBar->retain();
_hzScrollBar->setScrollPane(this, false);
_hzScrollBar->_alignToBL = true;
_owner->displayObject()->addChild(_hzScrollBar->displayObject());
}
}
}
_scrollBarDisplayAuto = scrollBarDisplay == ScrollBarDisplayType::AUTO;
if (_scrollBarDisplayAuto)
{
if (_vtScrollBar != nullptr)
_vtScrollBar->setVisible(false);
if (_hzScrollBar != nullptr)
_hzScrollBar->setVisible(false);
_owner->addEventListener(UIEventType::RollOver, CC_CALLBACK_1(ScrollPane::onRollOver, this));
_owner->addEventListener(UIEventType::RollOut, CC_CALLBACK_1(ScrollPane::onRollOut, this));
}
}
else
_mouseWheelEnabled = false;
if (headerRes.length() > 0)
{
_header = dynamic_cast<GComponent*>(UIPackage::createObjectFromURL(headerRes));
if (_header == nullptr)
CCLOGWARN("FairyGUI: cannot create scrollPane header from %s", headerRes.c_str());
else
{
_header->retain();
_header->setVisible(false);
_header->_alignToBL = true;
_owner->displayObject()->addChild(_header->displayObject());
}
}
if (footerRes.length() > 0)
{
_footer = dynamic_cast<GComponent*>(UIPackage::createObjectFromURL(footerRes));
if (_footer == nullptr)
CCLOGWARN("FairyGUI: cannot create scrollPane footer from %s", footerRes.c_str());
else
{
_footer->retain();
_footer->setVisible(false);
_footer->_alignToBL = true;
_owner->displayObject()->addChild(_footer->displayObject());
}
}
if (_header != nullptr || _footer != nullptr)
_refreshBarAxis = (_scrollType == ScrollType::BOTH || _scrollType == ScrollType::VERTICAL) ? 1 : 0;
setSize(_owner->getWidth(), _owner->getHeight());
}
void ScrollPane::setScrollStep(float value)
{
_scrollStep = value;
if (_scrollStep == 0)
_scrollStep = UIConfig::defaultScrollStep;
_mouseWheelStep = _scrollStep * 2;
}
void ScrollPane::setPosX(float value, bool ani)
{
_owner->ensureBoundsCorrect();
if (_loop == 1)
loopCheckingNewPos(value, 0);
value = clampf(value, 0, _overlapSize.width);
if (value != _xPos)
{
_xPos = value;
posChanged(ani);
}
}
void ScrollPane::setPosY(float value, bool ani)
{
_owner->ensureBoundsCorrect();
if (_loop == 2)
loopCheckingNewPos(value, 1);
value = clampf(value, 0, _overlapSize.height);
if (value != _yPos)
{
_yPos = value;
posChanged(ani);
}
}
float ScrollPane::getPercX() const
{
return _overlapSize.width == 0 ? 0 : _xPos / _overlapSize.width;
}
void ScrollPane::setPercX(float value, bool ani)
{
_owner->ensureBoundsCorrect();
setPosX(_overlapSize.width * clampf(value, 0, 1), ani);
}
float ScrollPane::getPercY() const
{
return _overlapSize.height == 0 ? 0 : _yPos / _overlapSize.height;
}
void ScrollPane::setPercY(float value, bool ani)
{
_owner->ensureBoundsCorrect();
setPosY(_overlapSize.height * clampf(value, 0, 1), ani);
}
bool ScrollPane::isBottomMost() const
{
return _yPos == _overlapSize.height || _overlapSize.height == 0;
}
bool ScrollPane::isRightMost() const
{
return _xPos == _overlapSize.width || _overlapSize.width == 0;
}
void ScrollPane::scrollLeft(float ratio, bool ani)
{
if (_pageMode)
setPosX(_xPos - _pageSize.width * ratio, ani);
else
setPosX(_xPos - _scrollStep * ratio, ani);
}
void ScrollPane::scrollRight(float ratio, bool ani)
{
if (_pageMode)
setPosX(_xPos + _pageSize.width * ratio, ani);
else
setPosX(_xPos + _scrollStep * ratio, ani);
}
void ScrollPane::scrollUp(float ratio, bool ani)
{
if (_pageMode)
setPosY(_yPos - _pageSize.height * ratio, ani);
else
setPosY(_yPos - _scrollStep * ratio, ani);
}
void ScrollPane::scrollDown(float ratio, bool ani)
{
if (_pageMode)
setPosY(_yPos + _pageSize.height * ratio, ani);
else
setPosY(_yPos + _scrollStep * ratio, ani);
}
void ScrollPane::scrollTop(bool ani)
{
setPercY(0, ani);
}
void ScrollPane::scrollBottom(bool ani)
{
setPercY(1, ani);
}
void ScrollPane::scrollToView(GObject* obj, bool ani, bool setFirst)
{
_owner->ensureBoundsCorrect();
if (_needRefresh)
refresh();
Rect rect = Rect(obj->getX(), obj->getY(), obj->getWidth(), obj->getHeight());
if (obj->getParent() != _owner)
rect = obj->getParent()->transformRect(rect, _owner);
scrollToView(rect, ani, setFirst);
}
void ScrollPane::scrollToView(const cocos2d::Rect& rect, bool ani, bool setFirst)
{
_owner->ensureBoundsCorrect();
if (_needRefresh)
refresh();
if (_overlapSize.height > 0)
{
float bottom = _yPos + _viewSize.height;
if (setFirst || rect.origin.y <= _yPos || rect.size.height >= _viewSize.height)
{
if (_pageMode)
setPosY(floor(rect.origin.y / _pageSize.height) * _pageSize.height, ani);
else
setPosY(rect.origin.y, ani);
}
else if (rect.getMaxY() > bottom)
{
if (_pageMode)
setPosY(floor(rect.origin.y / _pageSize.height) * _pageSize.height, ani);
else if (rect.size.height <= _viewSize.height / 2)
setPosY(rect.origin.y + rect.size.height * 2 - _viewSize.height, ani);
else
setPosY(rect.getMaxY() - _viewSize.height, ani);
}
}
if (_overlapSize.width > 0)
{
float right = _xPos + _viewSize.width;
if (setFirst || rect.origin.x <= _xPos || rect.size.width >= _viewSize.width)
{
if (_pageMode)
setPosX(floor(rect.origin.x / _pageSize.width) * _pageSize.width, ani);
setPosX(rect.origin.x, ani);
}
else if (rect.getMaxX() > right)
{
if (_pageMode)
setPosX(floor(rect.origin.x / _pageSize.width) * _pageSize.width, ani);
else if (rect.size.width <= _viewSize.width / 2)
setPosX(rect.origin.x + rect.size.width * 2 - _viewSize.width, ani);
else
setPosX(rect.getMaxX() - _viewSize.width, ani);
}
}
if (!ani && _needRefresh)
refresh();
}
bool ScrollPane::isChildInView(GObject* obj) const
{
if (_overlapSize.height > 0)
{
float dist = obj->getY() + _container->getPositionY2();
if (dist <= -obj->getHeight() || dist >= _viewSize.height)
return false;
}
if (_overlapSize.width > 0)
{
float dist = obj->getX() + _container->getPositionX();
if (dist <= -obj->getWidth() || dist >= _viewSize.width)
return false;
}
return true;
}
int ScrollPane::getPageX() const
{
if (!_pageMode)
return 0;
int page = floor(_xPos / _pageSize.width);
if (_xPos - page * _pageSize.width > _pageSize.width * 0.5f)
page++;
return page;
}
void ScrollPane::setPageX(int value, bool ani)
{
if (!_pageMode)
return;
_owner->ensureBoundsCorrect();
if (_overlapSize.width > 0)
setPosX(value * _pageSize.width, ani);
}
int ScrollPane::getPageY() const
{
if (!_pageMode)
return 0;
int page = floor(_yPos / _pageSize.height);
if (_yPos - page * _pageSize.height > _pageSize.height * 0.5f)
page++;
return page;
}
void ScrollPane::setPageY(int value, bool ani)
{
if (!_pageMode)
return;
_owner->ensureBoundsCorrect();
if (_overlapSize.height > 0)
setPosY(value * _pageSize.height, ani);
}
float ScrollPane::getScrollingPosX() const
{
return clampf(-_container->getPositionX(), 0, _overlapSize.width);
}
float ScrollPane::getScrollingPosY() const
{
return clampf(-_container->getPositionY2(), 0, _overlapSize.height);
}
void ScrollPane::setViewWidth(float value)
{
value = value + _owner->_margin.left + _owner->_margin.right;
if (_vtScrollBar != nullptr && !_floating)
value += _vtScrollBar->getWidth();
_owner->setWidth(value);
}
void ScrollPane::setViewHeight(float value)
{
value = value + _owner->_margin.top + _owner->_margin.bottom;
if (_hzScrollBar != nullptr && !_floating)
value += _hzScrollBar->getHeight();
_owner->setHeight(value);
}
void ScrollPane::lockHeader(int size)
{
if (_headerLockedSize == size)
return;
Vec2 cpos = _container->getPosition2();
_headerLockedSize = size;
if (!_owner->isDispatchingEvent(UIEventType::PullDownRelease) && sp_getField(cpos, _refreshBarAxis) >= 0)
{
_tweenStart = cpos;
_tweenChange.setZero();
sp_setField(_tweenChange, _refreshBarAxis, _headerLockedSize - sp_getField(_tweenStart, _refreshBarAxis));
_tweenDuration.set(TWEEN_TIME_DEFAULT, TWEEN_TIME_DEFAULT);
startTween(2);
CALL_PER_FRAME(ScrollPane, tweenUpdate);
}
}
void ScrollPane::lockFooter(int size)
{
if (_footerLockedSize == size)
return;
Vec2 cpos = _container->getPosition2();
_footerLockedSize = size;
if (!_owner->isDispatchingEvent(UIEventType::PullUpRelease) && sp_getField(cpos, _refreshBarAxis) >= 0)
{
_tweenStart = cpos;
_tweenChange.setZero();
float max = sp_getField(_overlapSize, _refreshBarAxis);
if (max == 0)
max = MAX(sp_getField(_contentSize, _refreshBarAxis) + _footerLockedSize - sp_getField(_viewSize, _refreshBarAxis), 0);
else
max += _footerLockedSize;
sp_setField(_tweenChange, _refreshBarAxis, -max - sp_getField(_tweenStart, _refreshBarAxis));
_tweenDuration.set(TWEEN_TIME_DEFAULT, TWEEN_TIME_DEFAULT);
startTween(2);
CALL_PER_FRAME(ScrollPane, tweenUpdate);
}
}
void ScrollPane::cancelDragging()
{
if (_draggingPane == this)
_draggingPane = nullptr;
_gestureFlag = 0;
_dragged = false;
}
void ScrollPane::handleControllerChanged(GController* c)
{
if (_pageController == c)
{
if (_scrollType == ScrollType::HORIZONTAL)
setPageX(c->getSelectedIndex(), true);
else
setPageY(c->getSelectedIndex(), true);
}
}
void ScrollPane::updatePageController()
{
if (_pageController != nullptr && !_pageController->changing)
{
int index;
if (_scrollType == ScrollType::HORIZONTAL)
index = getPageX();
else
index = getPageY();
if (index < _pageController->getPageCount())
{
GController* c = _pageController;
_pageController = nullptr; //avoid calling handleControllerChanged
c->setSelectedIndex(index);
_pageController = c;
}
}
}
void ScrollPane::adjustMaskContainer()
{
float mx, my;
if (_displayOnLeft && _vtScrollBar != nullptr && !_floating)
mx = floor(_owner->_margin.left + _vtScrollBar->getWidth());
else
mx = floor(_owner->_margin.left);
my = floor(_owner->_margin.top);
mx += _owner->_alignOffset.x;
my += _owner->_alignOffset.y;
_maskContainer->setPosition(Vec2(mx, _owner->getHeight() - _viewSize.height - my));
}
void ScrollPane::onOwnerSizeChanged()
{
setSize(_owner->getWidth(), _owner->getHeight());
posChanged(false);
}
void ScrollPane::setSize(float wv, float hv)
{
if (_hzScrollBar != nullptr)
{
_hzScrollBar->setY(hv - _hzScrollBar->getHeight());
if (_vtScrollBar != nullptr)
{
_hzScrollBar->setWidth(wv - _vtScrollBar->getWidth() - _scrollBarMargin.left - _scrollBarMargin.right);
if (_displayOnLeft)
_hzScrollBar->setX(_scrollBarMargin.left + _vtScrollBar->getWidth());
else
_hzScrollBar->setX(_scrollBarMargin.left);
}
else
{
_hzScrollBar->setWidth(wv - _scrollBarMargin.left - _scrollBarMargin.right);
_hzScrollBar->setX(_scrollBarMargin.left);
}
}
if (_vtScrollBar != nullptr)
{
if (!_displayOnLeft)
_vtScrollBar->setX(wv - _vtScrollBar->getWidth());
if (_hzScrollBar != nullptr)
_vtScrollBar->setHeight(hv - _hzScrollBar->getHeight() - _scrollBarMargin.top - _scrollBarMargin.bottom);
else
_vtScrollBar->setHeight(hv - _scrollBarMargin.top - _scrollBarMargin.bottom);
_vtScrollBar->setY(_scrollBarMargin.top);
}
_viewSize.width = wv;
_viewSize.height = hv;
if (_hzScrollBar != nullptr && !_floating)
_viewSize.height -= _hzScrollBar->getHeight();
if (_vtScrollBar != nullptr && !_floating)
_viewSize.width -= _vtScrollBar->getWidth();
_viewSize.width -= (_owner->_margin.left + _owner->_margin.right);
_viewSize.height -= (_owner->_margin.top + _owner->_margin.bottom);
_viewSize.width = MAX(1, _viewSize.width);
_viewSize.height = MAX(1, _viewSize.height);
_pageSize = _viewSize;
adjustMaskContainer();
handleSizeChanged();
}
void ScrollPane::setContentSize(float wv, float hv)
{
if (_contentSize.width == wv && _contentSize.height == hv)
return;
_contentSize.width = wv;
_contentSize.height = hv;
handleSizeChanged();
}
void ScrollPane::changeContentSizeOnScrolling(float deltaWidth, float deltaHeight, float deltaPosX, float deltaPosY)
{
bool isRightmost = _xPos == _overlapSize.width;
bool isBottom = _yPos == _overlapSize.height;
_contentSize.width += deltaWidth;
_contentSize.height += deltaHeight;
handleSizeChanged();
if (_tweening == 1)
{
if (deltaWidth != 0 && isRightmost && _tweenChange.x < 0)
{
_xPos = _overlapSize.width;
_tweenChange.x = -_xPos - _tweenStart.x;
}
if (deltaHeight != 0 && isBottom && _tweenChange.y < 0)
{
_yPos = _overlapSize.height;
_tweenChange.y = -_yPos - _tweenStart.y;
}
}
else if (_tweening == 2)
{
if (deltaPosX != 0)
{
_container->setPositionX(_container->getPositionX() - deltaPosX);
_tweenStart.x -= deltaPosX;
_xPos = -_container->getPositionX();
}
if (deltaPosY != 0)
{
_container->setPositionY2(_container->getPositionY2() - deltaPosY);
_tweenStart.y -= deltaPosY;
_yPos = -_container->getPositionY2();
}
}
else if (_dragged)
{
if (deltaPosX != 0)
{
_container->setPositionX(_container->getPositionX() - deltaPosX);
_containerPos.x -= deltaPosX;
_xPos = -_container->getPositionX();
}
if (deltaPosY != 0)
{
_container->setPositionY2(_container->getPositionY2() - deltaPosY);
_containerPos.y -= deltaPosY;
_yPos = -_container->getPositionY2();
}
}
else
{
if (deltaWidth != 0 && isRightmost)
{
_xPos = _overlapSize.width;
_container->setPositionX(_container->getPositionX() - _xPos);
}
if (deltaHeight != 0 && isBottom)
{
_yPos = _overlapSize.height;
_container->setPositionY2(_container->getPositionY2() - _yPos);
}
}
if (_pageMode)
updatePageController();
}
void ScrollPane::handleSizeChanged()
{
if (_displayInDemand)
{
_vScrollNone = _contentSize.height <= _viewSize.height;
_hScrollNone = _contentSize.width <= _viewSize.width;
}
if (_vtScrollBar != nullptr)
{
if (_contentSize.height == 0)
_vtScrollBar->setDisplayPerc(0);
else
_vtScrollBar->setDisplayPerc(MIN(1, _viewSize.height / _contentSize.height));
}
if (_hzScrollBar != nullptr)
{
if (_contentSize.width == 0)
_hzScrollBar->setDisplayPerc(0);
else
_hzScrollBar->setDisplayPerc(MIN(1, _viewSize.width / _contentSize.width));
}
updateScrollBarVisible();
_maskContainer->setContentSize(_viewSize);
Rect maskRect(Vec2(-_owner->_alignOffset.x, _owner->_alignOffset.y), _viewSize);
if (_vScrollNone && _vtScrollBar != nullptr)
maskRect.size.width += _vtScrollBar->getWidth();
if (_hScrollNone && _hzScrollBar != nullptr)
maskRect.size.height += _hzScrollBar->getHeight();
if (_dontClipMargin)
{
maskRect.origin.x -= _owner->_margin.left;
maskRect.size.width += _owner->_margin.left + _owner->_margin.right;
maskRect.origin.y -= _owner->_margin.top;
maskRect.size.height += _owner->_margin.top + _owner->_margin.bottom;
}
_maskContainer->setClippingRegion(maskRect);
if (_vtScrollBar)
_vtScrollBar->handlePositionChanged();
if (_hzScrollBar)
_hzScrollBar->handlePositionChanged();
if (_header)
_header->handlePositionChanged();
if (_footer)
_footer->handlePositionChanged();
if (_scrollType == ScrollType::HORIZONTAL || _scrollType == ScrollType::BOTH)
_overlapSize.width = ceil(MAX(0, _contentSize.width - _viewSize.width));
else
_overlapSize.width = 0;
if (_scrollType == ScrollType::VERTICAL || _scrollType == ScrollType::BOTH)
_overlapSize.height = ceil(MAX(0, _contentSize.height - _viewSize.height));
else
_overlapSize.height = 0;
_xPos = clampf(_xPos, 0, _overlapSize.width);
_yPos = clampf(_yPos, 0, _overlapSize.height);
float max = sp_getField(_overlapSize, _refreshBarAxis);
if (max == 0)
max = MAX(sp_getField(_contentSize, _refreshBarAxis) + _footerLockedSize - sp_getField(_viewSize, _refreshBarAxis), 0);
else
max += _footerLockedSize;
if (_refreshBarAxis == 0)
_container->setPosition2(clampf(_container->getPositionX(), -max, _headerLockedSize),
clampf(_container->getPositionY2(), -_overlapSize.height, 0));
else
_container->setPosition2(clampf(_container->getPositionX(), -_overlapSize.width, 0),
clampf(_container->getPositionY2(), -max, _headerLockedSize));
if (_header != nullptr)
{
if (_refreshBarAxis == 0)
_header->setHeight(_viewSize.height);
else
_header->setWidth(_viewSize.width);
}
if (_footer != nullptr)
{
if (_refreshBarAxis == 0)
_footer->setHeight(_viewSize.height);
else
_footer->setWidth(_viewSize.width);
}
updateScrollBarPos();
if (_pageMode)
updatePageController();
}
GObject* ScrollPane::hitTest(const cocos2d::Vec2& pt, const cocos2d::Camera* camera)
{
GObject* target = nullptr;
if (_vtScrollBar)
{
target = _vtScrollBar->hitTest(pt, camera);
if (target)
return target;
}
if (_hzScrollBar)
{
target = _hzScrollBar->hitTest(pt, camera);
if (target)
return target;
}
if (_header && _header->displayObject()->getParent() != nullptr)
{
target = _header->hitTest(pt, camera);
if (target)
return target;
}
if (_footer && _footer->displayObject()->getParent() != nullptr)
{
target = _footer->hitTest(pt, camera);
if (target)
return target;
}
if (_maskContainer->isClippingEnabled())
{
Vec2 localPoint = _maskContainer->convertToNodeSpace(pt);
Rect rect; // fix by u0u0. rect.origin must 0,0
rect.size = _maskContainer->getClippingRegion().size;
if (rect.containsPoint(localPoint))
return _owner;
else
return nullptr;
}
else
return _owner;
}
void ScrollPane::posChanged(bool ani)
{
if (_aniFlag == 0)
_aniFlag = ani ? 1 : -1;
else if (_aniFlag == 1 && !ani)
_aniFlag = -1;
_needRefresh = true;
CALL_LATER(ScrollPane, refresh);
}
void ScrollPane::refresh()
{
CALL_LATER_CANCEL(ScrollPane, refresh);
_needRefresh = false;
if (_pageMode || _snapToItem)
{
Vec2 pos(-_xPos, -_yPos);
alignPosition(pos, false);
_xPos = -pos.x;
_yPos = -pos.y;
}
refresh2();
_owner->dispatchEvent(UIEventType::Scroll);
if (_needRefresh) //pos may change in onScroll
{
_needRefresh = false;
CALL_LATER_CANCEL(ScrollPane, refresh);
refresh2();
}
updateScrollBarPos();
_aniFlag = 0;
}
void ScrollPane::refresh2()
{
if (_aniFlag == 1 && !_dragged)
{
Vec2 pos;
if (_overlapSize.width > 0)
pos.x = -(int)_xPos;
else
{
if (_container->getPositionX() != 0)
_container->setPositionX(0);
pos.x = 0;
}
if (_overlapSize.height > 0)
pos.y = -(int)_yPos;
else
{
if (_container->getPositionY2() != 0)
_container->setPositionY2(0);
pos.y = 0;
}
if (pos.x != _container->getPositionX() || pos.y != _container->getPositionY2())
{
_tweenDuration.set(TWEEN_TIME_GO, TWEEN_TIME_GO);
_tweenStart = _container->getPosition2();
_tweenChange = pos - _tweenStart;
startTween(1);
}
else if (_tweening != 0)
killTween();
}
else
{
if (_tweening != 0)
killTween();
_container->setPosition2(Vec2((int)-_xPos, (int)-_yPos));
loopCheckingCurrent();
}
if (_pageMode)
updatePageController();
}
void ScrollPane::updateScrollBarPos()
{
if (_vtScrollBar != nullptr)
_vtScrollBar->setScrollPerc(_overlapSize.height == 0 ? 0 : clampf(-_container->getPositionY2(), 0, _overlapSize.height) / _overlapSize.height);
if (_hzScrollBar != nullptr)
_hzScrollBar->setScrollPerc(_overlapSize.width == 0 ? 0 : clampf(-_container->getPositionX(), 0, _overlapSize.width) / _overlapSize.width);
checkRefreshBar();
}
void ScrollPane::updateScrollBarVisible()
{
if (_vtScrollBar != nullptr)
{
if (_viewSize.height <= _vtScrollBar->getMinSize() || _vScrollNone)
_vtScrollBar->setVisible(false);
else
updateScrollBarVisible2(_vtScrollBar);
}
if (_hzScrollBar != nullptr)
{
if (_viewSize.width <= _hzScrollBar->getMinSize() || _hScrollNone)
_hzScrollBar->setVisible(false);
else
updateScrollBarVisible2(_hzScrollBar);
}
}
void ScrollPane::updateScrollBarVisible2(GScrollBar* bar)
{
if (_scrollBarDisplayAuto)
GTween::kill(bar, TweenPropType::Alpha, false);
if (_scrollBarDisplayAuto && !_hover && _tweening == 0 && !_dragged && !bar->_gripDragging)
{
if (bar->isVisible())
GTween::to(1, 0, 0.5f)
->setDelay(0.5f)
->onComplete1(CC_CALLBACK_1(ScrollPane::onBarTweenComplete, this))