axmol/extensions/GUI/CCControlExtension/CCControlStepper.cpp

/*
 * Copyright (c) 2012 cocos2d-x.org
 * https://axis-project.github.io/
 *
 * Copyright 2012 Yannick Loriot. All rights reserved.
 * http://yannickloriot.com
 *
 * Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT falseT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND falseNINFRINGEMENT. IN false EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#include "CCControlStepper.h"

NS_CC_EXT_BEGIN

#define ControlStepperLabelColorEnabled Color3B(55, 55, 55)
#define ControlStepperLabelColorDisabled Color3B(147, 147, 147)

#define ControlStepperLabelFont "CourierNewPSMT"

#define kAutorepeatDeltaTime 0.15f
#define kAutorepeatIncreaseTimeIncrement 12

ControlStepper::ControlStepper()
    : _value(0.0)
    , _continuous(false)
    , _autorepeat(false)
    , _wraps(false)
    , _minimumValue(0.0)
    , _maximumValue(0.0)
    , _stepValue(0.0)
    , _touchInsideFlag(false)
    , _touchedPart(Part::NONE)
    , _autorepeatCount(0)
    , _minusSprite(nullptr)
    , _plusSprite(nullptr)
    , _minusLabel(nullptr)
    , _plusLabel(nullptr)
{}

ControlStepper::~ControlStepper()
{
    unscheduleAllCallbacks();

    CC_SAFE_RELEASE(_minusSprite);
    CC_SAFE_RELEASE(_plusSprite);
    CC_SAFE_RELEASE(_minusLabel);
    CC_SAFE_RELEASE(_plusLabel);
}

bool ControlStepper::initWithMinusSpriteAndPlusSprite(Sprite* minusSprite, Sprite* plusSprite)
{
    if (Control::init())
    {
        CCASSERT(minusSprite, "Minus sprite must be not nil");
        CCASSERT(plusSprite, "Plus sprite must be not nil");

        // Set the default values
        _autorepeat   = true;
        _continuous   = true;
        _minimumValue = 0;
        _maximumValue = 100;
        _value        = 0;
        _stepValue    = 1;
        _wraps        = false;
        this->setIgnoreAnchorPointForPosition(false);

        // Add the minus components
        this->setMinusSprite(minusSprite);
        _minusSprite->setPosition(minusSprite->getContentSize().width / 2, minusSprite->getContentSize().height / 2);
        this->addChild(_minusSprite);

        this->setMinusLabel(Label::createWithSystemFont("-", ControlStepperLabelFont, 40));
        _minusLabel->setColor(ControlStepperLabelColorDisabled);
        _minusLabel->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
        _minusLabel->setPosition(_minusSprite->getContentSize().width / 2, _minusSprite->getContentSize().height / 2);
        _minusSprite->addChild(_minusLabel);

        // Add the plus components
        this->setPlusSprite(plusSprite);
        _plusSprite->setPosition(minusSprite->getContentSize().width + plusSprite->getContentSize().width / 2,
                                 minusSprite->getContentSize().height / 2);
        this->addChild(_plusSprite);

        this->setPlusLabel(Label::createWithSystemFont("+", ControlStepperLabelFont, 40));
        _plusLabel->setColor(ControlStepperLabelColorEnabled);
        _plusLabel->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
        _plusLabel->setPosition(_plusSprite->getContentSize().width / 2, _plusSprite->getContentSize().height / 2);
        _plusSprite->addChild(_plusLabel);

        // Defines the content size
        Rect maxRect = ControlUtils::RectUnion(_minusSprite->getBoundingBox(), _plusSprite->getBoundingBox());
        this->setContentSize(
            Size(_minusSprite->getContentSize().width + _plusSprite->getContentSize().height, maxRect.size.height));
        return true;
    }
    return false;
}

ControlStepper* ControlStepper::create(Sprite* minusSprite, Sprite* plusSprite)
{
    ControlStepper* pRet = new ControlStepper();
    if (pRet->initWithMinusSpriteAndPlusSprite(minusSprite, plusSprite))
    {
        pRet->autorelease();
    }
    else
    {
        CC_SAFE_DELETE(pRet);
    }
    return pRet;
}

//// Properties

void ControlStepper::setWraps(bool wraps)
{
    _wraps = wraps;

    if (_wraps)
    {
        _minusLabel->setColor(ControlStepperLabelColorEnabled);
        _plusLabel->setColor(ControlStepperLabelColorEnabled);
    }

    this->setValue(_value);
}

void ControlStepper::setMinimumValue(double minimumValue)
{
    if (minimumValue >= _maximumValue)
    {
        CCASSERT(0, "Must be numerically less than maximumValue.");
    }

    _minimumValue = minimumValue;
    this->setValue(_value);
}

void ControlStepper::setMaximumValue(double maximumValue)
{
    if (maximumValue <= _minimumValue)
    {
        CCASSERT(0, "Must be numerically greater than minimumValue.");
    }

    _maximumValue = maximumValue;
    this->setValue(_value);
}

void ControlStepper::setValue(double value)
{
    this->setValueWithSendingEvent(value, true);
}

double ControlStepper::getValue() const
{
    return _value;
}

void ControlStepper::setStepValue(double stepValue)
{
    if (stepValue <= 0)
    {
        CCASSERT(0, "Must be numerically greater than 0.");
    }

    _stepValue = stepValue;
}

bool ControlStepper::isContinuous() const
{
    return _continuous;
}
//
//// ControlStepper Public Methods

void ControlStepper::setValueWithSendingEvent(double value, bool send)
{
    if (value < _minimumValue)
    {
        value = _wraps ? _maximumValue : _minimumValue;
    }
    else if (value > _maximumValue)
    {
        value = _wraps ? _minimumValue : _maximumValue;
    }

    _value = value;

    if (!_wraps)
    {
        _minusLabel->setColor((value == _minimumValue) ? ControlStepperLabelColorDisabled
                                                       : ControlStepperLabelColorEnabled);
        _plusLabel->setColor((value == _maximumValue) ? ControlStepperLabelColorDisabled
                                                      : ControlStepperLabelColorEnabled);
    }

    if (send)
    {
        this->sendActionsForControlEvents(Control::EventType::VALUE_CHANGED);
    }
}

void ControlStepper::startAutorepeat()
{
    _autorepeatCount = -1;

    this->schedule(CC_SCHEDULE_SELECTOR(ControlStepper::update), kAutorepeatDeltaTime, CC_REPEAT_FOREVER,
                   kAutorepeatDeltaTime * 3);
}

/** Stop the autorepeat. */
void ControlStepper::stopAutorepeat()
{
    this->unschedule(CC_SCHEDULE_SELECTOR(ControlStepper::update));
}

void ControlStepper::update(float /*dt*/)
{
    _autorepeatCount++;

    if ((_autorepeatCount < kAutorepeatIncreaseTimeIncrement) && (_autorepeatCount % 3) != 0)
        return;

    if (_touchedPart == Part::MINUS)
    {
        this->setValueWithSendingEvent(_value - _stepValue, _continuous);
    }
    else if (_touchedPart == Part::PLUS)
    {
        this->setValueWithSendingEvent(_value + _stepValue, _continuous);
    }
}

//// ControlStepper Private Methods

void ControlStepper::updateLayoutUsingTouchLocation(Vec2 location)
{
    if (location.x < _minusSprite->getContentSize().width && _value > _minimumValue)
    {
        _touchedPart = Part::MINUS;

        _minusSprite->setColor(Color3B::GRAY);
        _plusSprite->setColor(Color3B::WHITE);
    }
    else if (location.x >= _minusSprite->getContentSize().width && _value < _maximumValue)
    {
        _touchedPart = Part::PLUS;

        _minusSprite->setColor(Color3B::WHITE);
        _plusSprite->setColor(Color3B::GRAY);
    }
    else
    {
        _touchedPart = Part::NONE;

        _minusSprite->setColor(Color3B::WHITE);
        _plusSprite->setColor(Color3B::WHITE);
    }
}

bool ControlStepper::onTouchBegan(Touch* pTouch, Event* /*pEvent*/)
{
    if (!isTouchInside(pTouch) || !isEnabled() || !isVisible())
    {
        return false;
    }

    Vec2 location = this->getTouchLocation(pTouch);
    this->updateLayoutUsingTouchLocation(location);

    _touchInsideFlag = true;

    if (_autorepeat)
    {
        this->startAutorepeat();
    }

    return true;
}

void ControlStepper::onTouchMoved(Touch* pTouch, Event* /*pEvent*/)
{
    if (this->isTouchInside(pTouch))
    {
        Vec2 location = this->getTouchLocation(pTouch);
        this->updateLayoutUsingTouchLocation(location);

        if (!_touchInsideFlag)
        {
            _touchInsideFlag = true;

            if (_autorepeat)
            {
                this->startAutorepeat();
            }
        }
    }
    else
    {
        _touchInsideFlag = false;

        _touchedPart = Part::NONE;

        _minusSprite->setColor(Color3B::WHITE);
        _plusSprite->setColor(Color3B::WHITE);

        if (_autorepeat)
        {
            this->stopAutorepeat();
        }
    }
}

void ControlStepper::onTouchEnded(Touch* pTouch, Event* /*pEvent*/)
{
    _minusSprite->setColor(Color3B::WHITE);
    _plusSprite->setColor(Color3B::WHITE);

    if (_autorepeat)
    {
        this->stopAutorepeat();
    }

    if (this->isTouchInside(pTouch))
    {
        Vec2 location = this->getTouchLocation(pTouch);

        this->setValue(_value +
                       ((location.x < _minusSprite->getContentSize().width) ? (0.0 - _stepValue) : _stepValue));
    }
}

NS_CC_EXT_END