IAPDemo/Libraries/cocos2d/extensions/GUI/CCControlExtension/EXControlButton.cpp

//
//  EXControlButton.cpp
//  cocos2d_libs
//
//  Created by ZhengSong on 2020/4/14.
//

#include "EXControlButton.h"
#include "2d/CCAction.h"
#include "2d/CCActionInterval.h"
NS_CC_EXT_BEGIN
enum
{
    kZoomActionTag = 0xCCCB0001,
};
EXControlButton* EXControlButton::create()
{
    EXControlButton *pControlButton = new (std::nothrow) EXControlButton();
    if (pControlButton && pControlButton->init())
    {
        pControlButton->autorelease();
        return pControlButton;
    }
    CC_SAFE_DELETE(pControlButton);
    return nullptr;
}
EXControlButton::EXControlButton()
: _isPushed(false)
, _zoomOnTouchDown(false)
{

}

bool EXControlButton::init(){
    if (Control::init())
    {

        _isPushed = false;

        // Adjust the background image by adjustBackGroundSize
        setPreferredSize(Size::ZERO);
        
        // Zooming button by default
        _zoomOnTouchDown = true;
        _scaleRatio = 1.1f;
        
        // Set the default anchor point
        setIgnoreAnchorPointForPosition(false);
        setAnchorPoint(Vec2::ANCHOR_MIDDLE);
        


        // Set the default color and opacity
        setColor(Color3B::WHITE);
        setOpacity(255.0f);
        setOpacityModifyRGB(true);
        


        // Layout update
        needsLayout();

        return true;
    }
    //couldn't init the Control
    else
    {
        return false;
    }
}
void EXControlButton::setHighlighted(bool enabled)
{
    if (enabled == true)
    {
        _state = Control::State::HIGH_LIGHTED;
    }
    else
    {
        _state = Control::State::NORMAL;
    }
    
    Control::setHighlighted(enabled);

    Action *action = getActionByTag(kZoomActionTag);
    if (action)
    {
        stopAction(action);
    }
    needsLayout();
    if( _zoomOnTouchDown )
    {
        float scaleValue = (isHighlighted() && isEnabled() && !isSelected()) ? _scaleRatio : 1.0f;
        Action *zoomAction = ScaleTo::create(0.05f, scaleValue);
        zoomAction->setTag(kZoomActionTag);
        runAction(zoomAction);
    }
}

void EXControlButton::setZoomOnTouchDown(bool zoomOnTouchDown)
{
    _zoomOnTouchDown = zoomOnTouchDown;
}

bool EXControlButton::getZoomOnTouchDown() const
{
    return _zoomOnTouchDown;
}

void EXControlButton::setPreferredSize(const Size& size)
{
    _preferredSize = size;
    this->setContentSize(size);
    needsLayout();
}
void EXControlButton::setContentSize(const Size& size){
    Control::setContentSize(size);
}
const Size& EXControlButton::getPreferredSize() const
{
    return _preferredSize;
}
bool EXControlButton::onTouchBegan(Touch *pTouch, Event* /*pEvent*/)
{
    if (!isTouchInside(pTouch) || !isEnabled() || !isVisible() || !hasVisibleParents() )
    {
        return false;
    }
    
    for (Node *c = this->_parent; c != nullptr; c = c->getParent())
    {
        if (c->isVisible() == false)
        {
            return false;
        }
    }
    
    _isPushed = true;
    this->setHighlighted(true);
    sendActionsForControlEvents(Control::EventType::TOUCH_DOWN);
    return true;
}

void EXControlButton::onTouchMoved(Touch *pTouch, Event* /*pEvent*/)
{
    if (!isEnabled() || !isPushed() || isSelected())
    {
        if (isHighlighted())
        {
            setHighlighted(false);
        }
        return;
    }
    
    bool isTouchMoveInside = isTouchInside(pTouch);
    if (isTouchMoveInside && !isHighlighted())
    {
        setHighlighted(true);
        sendActionsForControlEvents(Control::EventType::DRAG_ENTER);
    }
    else if (isTouchMoveInside && isHighlighted())
    {
        sendActionsForControlEvents(Control::EventType::DRAG_INSIDE);
    }
    else if (!isTouchMoveInside && isHighlighted())
    {
        setHighlighted(false);
        
        sendActionsForControlEvents(Control::EventType::DRAG_EXIT);
    }
    else if (!isTouchMoveInside && !isHighlighted())
    {
        sendActionsForControlEvents(Control::EventType::DRAG_OUTSIDE);
    }
}
void EXControlButton::onTouchEnded(Touch *pTouch, Event* /*pEvent*/)
{
    _isPushed = false;
    setHighlighted(false);
    
    
    if (isTouchInside(pTouch))
    {
        sendActionsForControlEvents(Control::EventType::TOUCH_UP_INSIDE);
    }
    else
    {
        sendActionsForControlEvents(Control::EventType::TOUCH_UP_OUTSIDE);
    }
}
void EXControlButton::onTouchCancelled(Touch* /*pTouch*/, Event* /*pEvent*/)
{
    _isPushed = false;
    setHighlighted(false);
    sendActionsForControlEvents(Control::EventType::TOUCH_CANCEL);
}
NS_CC_EXT_END