RedCore/cocos2d/cocos/ui/UILoadingBar.cpp

/****************************************************************************
Copyright (c) 2013-2017 Chukong Technologies Inc.

http://www.cocos2d-x.org

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****************************************************************************/

#include "ui/UILoadingBar.h"
#include "ui/UIHelper.h"
#include "ui/UIScale9Sprite.h"
#include "2d/CCSprite.h"
#include "editor-support/cocostudio/CocosStudioExtension.h"

NS_CC_BEGIN

/* FIXME:
 Code could be simplified by using Sprite's setContentSize feature.
 Instead of scaling the sprite, set call setContentSize both in scale9 and non-scale9 modes
 */

namespace ui {
    
static const int BAR_RENDERER_Z = (-1);
    
IMPLEMENT_CLASS_GUI_INFO(LoadingBar)
    
LoadingBar::LoadingBar():
_direction(Direction::LEFT),
_percent(100.0),
_totalLength(0),
_textureFile(""),
_barRenderer(nullptr),
_renderBarTexType(TextureResType::LOCAL),
_barRendererTextureSize(Size::ZERO),
_originalRect(Rect::ZERO),
_scale9Enabled(false),
_prevIgnoreSize(true),
_capInsets(Rect::ZERO),
_barRendererAdaptDirty(true)
{
}

LoadingBar::~LoadingBar()
{
    
}

LoadingBar* LoadingBar::create()
{
    LoadingBar* widget = new (std::nothrow) LoadingBar();
    if (widget && widget->init())
    {
        widget->autorelease();
        return widget;
    }
    CC_SAFE_DELETE(widget);
    return nullptr;
}
    
LoadingBar* LoadingBar::create(const std::string &textureName, float percentage)
{
    return LoadingBar::create(textureName, TextureResType::LOCAL, percentage);
}
    
LoadingBar* LoadingBar::create(const std::string &textureName,
                               TextureResType texType,
                               float percentage)
{
    LoadingBar* widget = new (std::nothrow) LoadingBar;
    if (widget && widget->init())
    {
        widget->autorelease();
        widget->loadTexture(textureName,texType);
        widget->setPercent(percentage);
        return widget;
    }
    CC_SAFE_DELETE(widget);
    return nullptr;
}

void LoadingBar::initRenderer()
{
    _barRenderer = Scale9Sprite::create();
    _barRenderer->setScale9Enabled(false);
    addProtectedChild(_barRenderer, BAR_RENDERER_Z, -1);
    _barRenderer->setAnchorPoint(Vec2(0.0,0.5));
}

    
void LoadingBar::setDirection(cocos2d::ui::LoadingBar::Direction direction)
{
    if (_direction == direction)
    {
        return;
    }
    _direction = direction;
    
    switch (_direction)
    {
        case Direction::LEFT:
            _barRenderer->setAnchorPoint(Vec2(0.0f,0.5f));
            _barRenderer->setPosition(Vec2(0,_contentSize.height*0.5f));
            break;
        case Direction::RIGHT:
            _barRenderer->setAnchorPoint(Vec2(1.0f,0.5f));
            _barRenderer->setPosition(Vec2(_totalLength,_contentSize.height*0.5f));
            break;
    }
    this->handleSpriteFlipX();
}

LoadingBar::Direction LoadingBar::getDirection()const
{
    return _direction;
}
    

void LoadingBar::loadTexture(const std::string& texture,TextureResType texType)
{
    if (texture.empty())
    {
        return;
    }
    _textureFile = texture;
    _renderBarTexType = texType;
    switch (_renderBarTexType)
    {
        case TextureResType::LOCAL:
            _barRenderer->setTexture(texture);
            break;
        case TextureResType::PLIST:
            _barRenderer->setSpriteFrame(texture);
            break;
        default:
            break;
    }
    
    //FIXME: https://github.com/cocos2d/cocos2d-x/issues/12249
    if (!_ignoreSize && _customSize.equals(Size::ZERO)) {
        _customSize = _barRenderer->getContentSize();
    }
    this->setupTexture();
}

void LoadingBar::loadTexture(SpriteFrame* spriteframe)
{
    this->_barRenderer->initWithSpriteFrame(spriteframe);
    this->setupTexture();
}

void LoadingBar::setupTexture()
{
    _barRendererTextureSize = _barRenderer->getContentSize();
    _originalRect = _barRenderer->getTextureRect();

    switch (_direction)
    {
        case Direction::LEFT:
            _barRenderer->setAnchorPoint(Vec2(0.0f,0.5f));
            break;
        case Direction::RIGHT:
            _barRenderer->setAnchorPoint(Vec2(1.0f,0.5f));
            break;
    }
    this->handleSpriteFlipX();

    _barRenderer->setCapInsets(_capInsets);

    this->updateChildrenDisplayedRGBA();

    barRendererScaleChangedWithSize();

    updateContentSizeWithTextureSize(_barRendererTextureSize);


    this->updateProgressBar();

    _barRendererAdaptDirty = true;
}
    
void LoadingBar::handleSpriteFlipX()
{
    if (_direction == Direction::LEFT)
    {
        if (!_scale9Enabled)
        {
            _barRenderer->setFlippedX(false);
        }
    }
    else
    {
        if (!_scale9Enabled)
        {
            _barRenderer->setFlippedX(true);
        }
    }
}

void LoadingBar::setScale9Enabled(bool enabled)
{
    if (_scale9Enabled == enabled)
    {
        return;
    }
    _scale9Enabled = enabled;

    _barRenderer->setScale9Enabled(_scale9Enabled);

    if (_scale9Enabled)
    {
        bool ignoreBefore = _ignoreSize;
        ignoreContentAdaptWithSize(false);
        _prevIgnoreSize = ignoreBefore;
    }
    else
    {
        ignoreContentAdaptWithSize(_prevIgnoreSize);
    }
    setCapInsets(_capInsets);

    updateProgressBar();
    _barRendererAdaptDirty = true;
}

bool LoadingBar::isScale9Enabled()const
{
    return _scale9Enabled;
}
    
void LoadingBar::setCapInsets(const Rect &capInsets)
{
    _capInsets = ui::Helper::restrictCapInsetRect(capInsets, _barRendererTextureSize);
    if (!_scale9Enabled)
    {
        return;
    }

    // textureRect should be restored in order to calculate the scale9 correctly
    // https://github.com/cocos2d/cocos2d-x/issues/16930
    _barRenderer->setTextureRect(_originalRect, _barRenderer->isTextureRectRotated(), _barRendererTextureSize);
    _barRenderer->setCapInsets(_capInsets);
}

const Rect& LoadingBar::getCapInsets()const
{
    return _capInsets;
}
    
void LoadingBar::setPercent(float percent)
{
    if (percent > 100)
    {
        percent = 100;
    }
    if (percent < 0)
    {
        percent = 0;
    }
    if (_percent == percent)
    {
        return;
    }
     _percent = percent;
    
    if (_totalLength <= 0)
    {
        return;
    }
    
    this->updateProgressBar();
}
    
void LoadingBar::updateProgressBar()
{
    if (_scale9Enabled)
    {
        setScale9Scale();
    }
    else
    {
        float res = _percent / 100.0f;
        Rect rect = _barRenderer->getTextureRect();
        rect.size.width = _barRendererTextureSize.width * res;
        _barRenderer->setTextureRect(rect, _barRenderer->isTextureRectRotated(), rect.size);
    }
}

float LoadingBar::getPercent() const
{
    return _percent;
}

void LoadingBar::onSizeChanged()
{
    Widget::onSizeChanged();
    _barRendererAdaptDirty = true;
}
    
void LoadingBar::adaptRenderers()
{
    if (_barRendererAdaptDirty)
    {
        barRendererScaleChangedWithSize();
        _barRendererAdaptDirty = false;
    }
}

void LoadingBar::ignoreContentAdaptWithSize(bool ignore)
{
    if (!_scale9Enabled || (_scale9Enabled && !ignore))
    {
        Widget::ignoreContentAdaptWithSize(ignore);
        _prevIgnoreSize = ignore;
    }
}

Size LoadingBar::getVirtualRendererSize() const
{
    return _barRendererTextureSize;
}

Node* LoadingBar::getVirtualRenderer()
{
    return _barRenderer;
}

void LoadingBar::barRendererScaleChangedWithSize()
{
    if (_unifySize)
    {
        //_barRenderer->setPreferredSize(_contentSize);
        _totalLength = _contentSize.width;
        this->setPercent(_percent);
    }
    else if (_ignoreSize)
    {
        if (!_scale9Enabled)
        {
            _totalLength = _barRendererTextureSize.width;
            _barRenderer->setScale(1.0f);
        }
    }
    else
    {
        _totalLength = _contentSize.width;
        if (_scale9Enabled)
        {
            this->setScale9Scale();
            _barRenderer->setScale(1.0f);
        }
        else
        {
            
            Size textureSize = _barRendererTextureSize;
            if (textureSize.width <= 0.0f || textureSize.height <= 0.0f)
            {
                _barRenderer->setScale(1.0f);
                return;
            }
            float scaleX = _contentSize.width / textureSize.width;
            float scaleY = _contentSize.height / textureSize.height;
            _barRenderer->setScaleX(scaleX);
            _barRenderer->setScaleY(scaleY);
        }
    }
    switch (_direction)
    {
        case Direction::LEFT:
            _barRenderer->setPosition(Vec2(0.0f,_contentSize.height*0.5f));
            break;
        case Direction::RIGHT:
            _barRenderer->setPosition(Vec2(_totalLength,_contentSize.height*0.5f));
            break;
        default:
            break;
    }
}

void LoadingBar::setScale9Scale()
{
    float width = (float)(_percent) / 100.0f * _totalLength;
    _barRenderer->setPreferredSize(Size(width, _contentSize.height));
}

std::string LoadingBar::getDescription() const
{
    return "LoadingBar";
}

Widget* LoadingBar::createCloneInstance()
{
    return LoadingBar::create();
}

void LoadingBar::copySpecialProperties(Widget *widget)
{
    LoadingBar* loadingBar = dynamic_cast<LoadingBar*>(widget);
    if (loadingBar)
    {
        _prevIgnoreSize = loadingBar->_prevIgnoreSize;
        setScale9Enabled(loadingBar->_scale9Enabled);

        // clone the inner sprite: https://github.com/cocos2d/cocos2d-x/issues/16930
        loadingBar->_barRenderer->copyTo(_barRenderer);
        setupTexture();

        setCapInsets(loadingBar->_capInsets);
        setPercent(loadingBar->_percent);
        setDirection(loadingBar->_direction);
        _textureFile = loadingBar->_textureFile;
        _totalLength = loadingBar->_totalLength;
        _barRendererTextureSize = loadingBar->_barRendererTextureSize;
    }
}

ResourceData LoadingBar::getRenderFile()
{
    ResourceData rData;
    rData.type = (int)_renderBarTexType;
    rData.file = _textureFile;
    return rData;
}

}

NS_CC_END