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- #include <TweenEngine/Tween.h>
- #include "ScrollBar.hpp"
- #include "../AssetManager.hpp"
- #include "../Theme.hpp"
- namespace FreeShop {
- ScrollBar::ScrollBar()
- : m_isTouching(false)
- , m_autoHide(true)
- , m_needsUpdate(true)
- , m_isHidden(true)
- , m_isScrolling(false)
- , m_deceleration(0.85f)
- , m_velocity(0.f)
- , m_scrollPos(0.f)
- , m_scrollPosMin(0.f)
- , m_scrollPosMax(0.f)
- , m_scrollTolerance(6.f)
- , m_veloctyModifer(2000.f)
- {
- if (Theme::isScrollbar9Themed) {
- cpp3ds::Texture &texture = AssetManager<cpp3ds::Texture>::get(FREESHOP_DIR "/theme/images/scrollbar.9.png");
- texture.setSmooth(true);
- m_scrollBar.setTexture(&texture);
- } else {
- cpp3ds::Texture &texture = AssetManager<cpp3ds::Texture>::get("images/scrollbar.9.png");
- texture.setSmooth(true);
- m_scrollBar.setTexture(&texture);
- }
- m_scrollBar.setContentSize(0.f, 100.f);
- m_scrollBar.setColor(cpp3ds::Color::Red);
- }
- ScrollBar::~ScrollBar()
- {
- for (auto &obj : m_scrollObjects)
- obj->detachScrollbar();
- }
- void ScrollBar::draw(cpp3ds::RenderTarget &target, cpp3ds::RenderStates states) const
- {
- ensureUpdateScrollBar();
- if (m_scrollBar.getSize().y < m_size.y)
- {
- states.transform *= getTransform();
- target.draw(m_scrollBar, states);
- }
- }
- void ScrollBar::attachObject(Scrollable *object)
- {
- if (!object)
- return;
- if (std::find(m_scrollObjects.begin(), m_scrollObjects.end(), object) == m_scrollObjects.end())
- {
- object->attachScrollbar(this);
- m_scrollObjects.push_back(object);
- m_needsUpdate = true;
- }
- }
- void ScrollBar::detachObject(Scrollable *object)
- {
- if (!object)
- return;
- for (auto it = m_scrollObjects.begin(); it != m_scrollObjects.end(); ++it)
- if (*it == object)
- {
- m_scrollObjects.erase(it);
- object->detachScrollbar();
- m_needsUpdate = true;
- break;
- }
- }
- bool ScrollBar::processEvent(const cpp3ds::Event &event)
- {
- if (event.type == cpp3ds::Event::TouchMoved)
- {
- if (m_isTouching)
- {
- m_clockHide.restart();
- if (!m_isScrolling && std::abs(m_startTouchPos.y - event.touch.y) > m_scrollTolerance)
- m_isScrolling = true;
- float posDiff = m_lastTouchPos.y - event.touch.y;
- if (m_isScrolling)
- setScrollRelative(-posDiff);
- m_lastTouchPos.x = event.touch.x;
- m_lastTouchPos.y = event.touch.y;
- cpp3ds::Time timeDiff = m_clockVelocity.restart();
- float v = m_veloctyModifer * -posDiff / (1 + timeDiff.asMilliseconds());
- if ((v >= 0.f && m_velocity >= 0.f) || (v < 0.f && m_velocity < 0.f))
- m_velocity = 0.5f * v + 0.5f * m_velocity;
- else
- m_velocity = v;
- return m_isScrolling;
- }
- }
- else if (event.type == cpp3ds::Event::TouchBegan)
- {
- if (!m_isTouching && m_dragRect.contains(event.touch.x, event.touch.y))
- {
- m_isTouching = true;
- m_isScrolling = false;
- m_startTouchPos = cpp3ds::Vector2i(event.touch.x, event.touch.y);
- m_lastTouchPos = m_startTouchPos;
- m_clockVelocity.restart();
- m_velocity = 0.f;
- return m_isScrolling;
- }
- }
- else if (m_isTouching && event.type == cpp3ds::Event::TouchEnded)
- {
- m_isTouching = false;
- return m_isScrolling;
- }
- return false;
- }
- void ScrollBar::update(float delta)
- {
- if (m_autoHide && m_clockHide.getElapsedTime() > cpp3ds::seconds(3.f))
- hide();
- if (!m_autoHide && m_isHidden)
- show();
- if (m_isScrolling && !m_isTouching)
- {
- if (m_velocity > 0.5f || m_velocity < -0.5f)
- {
- m_velocity *= m_deceleration;
- setScrollRelative(m_velocity * delta);
- }
- else
- m_isScrolling = false;
- }
- if (m_isScrolling)
- for (auto &obj : m_scrollObjects)
- obj->setScroll(m_scrollPos);
- if (m_scrollPos > m_scrollPosMax)
- setScroll(m_scrollPosMax);
- m_tweenManager.update(delta);
- }
- void ScrollBar::setDragRect(const cpp3ds::IntRect &rect)
- {
- m_dragRect = rect;
- m_needsUpdate = true;
- }
- void ScrollBar::setScrollAreaSize(const cpp3ds::Vector2u &size)
- {
- m_scrollAreaSize = size;
- m_needsUpdate = true;
- }
- void ScrollBar::setSize(const cpp3ds::Vector2u &size)
- {
- m_size = size;
- m_needsUpdate = true;
- }
- void ScrollBar::ensureUpdateScrollBar() const
- {
- if (!m_needsUpdate)
- return;
- m_scrollSize = 0.f;
- m_scrollPosMin = m_scrollAreaSize.y;
- m_scrollPosMax = 0.f;
- for (auto &obj : m_scrollObjects)
- {
- float scrollVal = obj->getScroll();
- const cpp3ds::Vector2f &size = obj->getScrollSize();
- m_scrollSize += size.y;
- }
- m_scrollPosMin = m_scrollAreaSize.y - m_scrollSize;
- // If everything is showing, no scrolling to do
- if (m_scrollPosMin > 0)
- m_scrollPosMin = 0;
- float visibleRatio = m_scrollAreaSize.y / (m_scrollSize+1);
- if (visibleRatio < 0.05f)
- visibleRatio = 0.05f;
- m_scrollBar.setSize(0.f, m_size.y * visibleRatio);
- m_needsUpdate = false;
- }
- void ScrollBar::setValues(int tweenType, float *newValues)
- {
- switch (tweenType) {
- case ALPHA: {
- cpp3ds::Color color = m_scrollBar.getColor();
- color.a = newValues[0];
- m_scrollBar.setColor(color);
- break;
- }
- default:
- TweenTransformable::setValues(tweenType, newValues);
- }
- }
- int ScrollBar::getValues(int tweenType, float *returnValues)
- {
- switch (tweenType) {
- case ALPHA:
- returnValues[0] = m_scrollBar.getColor().a;
- return 1;
- default:
- return TweenTransformable::getValues(tweenType, returnValues);
- }
- }
- void ScrollBar::show()
- {
- if (!m_isHidden || m_tweenManager.getRunningTweensCount() > 0)
- return;
- m_clockHide.restart();
- TweenEngine::Tween::to(*this, ALPHA, 0.5f)
- .target(m_color.a)
- .setCallback(TweenEngine::TweenCallback::COMPLETE, [this](TweenEngine::BaseTween* source) {
- m_isHidden = false;
- })
- .start(m_tweenManager);
- }
- void ScrollBar::hide()
- {
- if (m_isHidden || m_tweenManager.getRunningTweensCount() > 0)
- return;
- TweenEngine::Tween::to(*this, ALPHA, 0.8f)
- .target(0)
- .setCallback(TweenEngine::TweenCallback::COMPLETE, [this](TweenEngine::BaseTween* source) {
- m_isHidden = true;
- })
- .start(m_tweenManager);
- }
- void ScrollBar::setColor(const cpp3ds::Color &color)
- {
- cpp3ds::Color tmpColor = color;
- if (m_isHidden)
- tmpColor.a = 0;
- m_color = color;
- m_scrollBar.setColor(tmpColor);
- }
- void ScrollBar::setScroll(float scrollPos)
- {
- ensureUpdateScrollBar();
- if (scrollPos > m_scrollPosMax)
- scrollPos = m_scrollPosMax;
- else if (scrollPos < m_scrollPosMin)
- scrollPos = m_scrollPosMin;
- m_scrollPos = scrollPos;
- if (m_autoHide && m_scrollPosMin != m_scrollPosMax)
- show();
- setPosition(m_position);
- }
- void ScrollBar::setScrollRelative(float scrollDelta)
- {
- setScroll(m_scrollPos + scrollDelta);
- }
- void ScrollBar::setPosition(const cpp3ds::Vector2f &position)
- {
- m_position = position;
- float visibleRatio = m_size.y / (m_scrollSize+1);
- Transformable::setPosition(position + cpp3ds::Vector2f(0.f, -m_scrollPos * visibleRatio));
- }
- void ScrollBar::setPosition(float x, float y)
- {
- cpp3ds::Vector2f position(x, y);
- setPosition(position);
- }
- const cpp3ds::Vector2f &ScrollBar::getPosition() const
- {
- return m_position;
- }
- void ScrollBar::markDirty()
- {
- m_needsUpdate = true;
- }
- } // namespace FreeShop
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