India/cocos2d-x/cocos/ui/UIImageView.cpp

/****************************************************************************
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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****************************************************************************/

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

NS_CC_BEGIN

namespace ui {
    
static const int IMAGE_RENDERER_Z = (-1);
    
IMPLEMENT_CLASS_GUI_INFO(ImageView)

ImageView::ImageView():
_scale9Enabled(false),
_prevIgnoreSize(true),
_capInsets(Rect::ZERO),
_textureFile(""),
_imageRenderer(nullptr),
_imageTexType(TextureResType::LOCAL),
_imageTextureSize(_contentSize),
_imageRendererAdaptDirty(true)
{

}

ImageView::~ImageView()
{
    
}
    
ImageView* ImageView::create(const std::string &imageFileName, TextureResType texType)
{
    ImageView *widget = new (std::nothrow) ImageView;
    if (widget && widget->init(imageFileName, texType))
    {
        widget->autorelease();
        return widget;
    }
    CC_SAFE_DELETE(widget);
    return nullptr;
}

ImageView* ImageView::create()
{
    ImageView* widget = new (std::nothrow) ImageView();
    if (widget && widget->init())
    {
        widget->autorelease();
        return widget;
    }
    CC_SAFE_DELETE(widget);
    return nullptr;
}
    
bool ImageView::init()
{
    bool ret = true;
    do
    {
        if (!Widget::init())
        {
            ret = false;
            break;
        }
        _imageTexType = TextureResType::LOCAL;
    } while (0);
    return ret;
}
    
bool ImageView::init(const std::string &imageFileName, TextureResType texType)
{
    bool bRet = true;
    do
    {
        if (!Widget::init())
        {
            bRet = false;
            break;
        }
        
        this->loadTexture(imageFileName, texType);
    } while (0);
    return bRet;
}

void ImageView::initRenderer()
{
    _imageRenderer = Scale9Sprite::create();
    _imageRenderer->setRenderingType(Scale9Sprite::RenderingType::SIMPLE);
    
    addProtectedChild(_imageRenderer, IMAGE_RENDERER_Z, -1);
}

void ImageView::loadTexture(const std::string& fileName, TextureResType texType)
{
    if (fileName.empty())
    {
        return;
    }
	if (texType != _imageTexType)
	{
		_imageRenderer->resetRender();
	}
    _textureFile = fileName;
    _imageTexType = texType;
    switch (_imageTexType)
    {
        case TextureResType::LOCAL:
            _imageRenderer->initWithFile(fileName);
            break;
        case TextureResType::PLIST:
            _imageRenderer->initWithSpriteFrameName(fileName);
            break;
        default:
            break;
    }
    //FIXME: https://github.com/cocos2d/cocos2d-x/issues/12249
    if (!_ignoreSize && _customSize.equals(Size::ZERO)) {
        _customSize = _imageRenderer->getContentSize();
    }
    this->setupTexture();
}

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

void ImageView::setupTexture()
{
    _imageTextureSize = _imageRenderer->getContentSize();

    this->updateChildrenDisplayedRGBA();

    updateContentSizeWithTextureSize(_imageTextureSize);
    _imageRendererAdaptDirty = true;
}

void ImageView::setTextureRect(const Rect &rect)
{
    //This API should be refactor
    if (_scale9Enabled)
    {
    }
    else
    {
        auto sprite = _imageRenderer->getSprite();
        if (sprite)
        {
            sprite->setTextureRect(rect);
        }
        else
        {
            CCLOG("Warning!! you should load texture before set the texture's rect!");
        }
    }
}
    
void ImageView::setScale9Enabled(bool able)
{
    if (_scale9Enabled == able)
    {
        return;
    }
    
    
    _scale9Enabled = able;
    if (_scale9Enabled) {
        _imageRenderer->setRenderingType(Scale9Sprite::RenderingType::SLICE);
    }else{
        _imageRenderer->setRenderingType(Scale9Sprite::RenderingType::SIMPLE);
    }
    
    if (_scale9Enabled)
    {
        bool ignoreBefore = _ignoreSize;
        ignoreContentAdaptWithSize(false);
        _prevIgnoreSize = ignoreBefore;
    }
    else
    {
        ignoreContentAdaptWithSize(_prevIgnoreSize);
    }
    setCapInsets(_capInsets);
    _imageRendererAdaptDirty = true;
}
    
bool ImageView::isScale9Enabled()const
{
    return _scale9Enabled;
}

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

void ImageView::setCapInsets(const Rect &capInsets)
{
    _capInsets = ui::Helper::restrictCapInsetRect(capInsets, _imageTextureSize);
    if (!_scale9Enabled)
    {
        return;
    }
    _imageRenderer->setCapInsets(_capInsets);
}

const Rect& ImageView::getCapInsets()const
{
    return _capInsets;
}

void ImageView::onSizeChanged()
{
    Widget::onSizeChanged();
    _imageRendererAdaptDirty = true;
}
    
void ImageView::adaptRenderers()
{
    if (_imageRendererAdaptDirty)
    {
        imageTextureScaleChangedWithSize();
        _imageRendererAdaptDirty = false;
    }
}

Size ImageView::getVirtualRendererSize() const
{
    return _imageTextureSize;
}

Node* ImageView::getVirtualRenderer()
{
    return _imageRenderer;
}

void ImageView::imageTextureScaleChangedWithSize()
{
    _imageRenderer->setPreferredSize(_contentSize);
    
    _imageRenderer->setPosition(_contentSize.width / 2.0f, _contentSize.height / 2.0f);
}

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

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

void ImageView::copySpecialProperties(Widget *widget)
{
    ImageView* imageView = dynamic_cast<ImageView*>(widget);
    if (imageView)
    {
        _prevIgnoreSize = imageView->_prevIgnoreSize;
        setScale9Enabled(imageView->_scale9Enabled);
        auto imageSprite = imageView->_imageRenderer->getSprite();
        if(nullptr != imageSprite)
        {
            loadTexture(imageSprite->getSpriteFrame());
        }
        setCapInsets(imageView->_capInsets);
    }
}

ResourceData ImageView::getRenderFile()
{
    ResourceData rData;
    rData.type = (int)_imageTexType;
    rData.file = _textureFile;
    return rData;
}
    
void ImageView::setGLProgram(GLProgram* glProgram)
{
    Widget::setGLProgram(glProgram);
    _imageRenderer->setGLProgram(glProgram);
}
    
void ImageView::setGLProgramState(cocos2d::GLProgramState* glProgramState)
{
    Widget::setGLProgramState(glProgramState);
    _imageRenderer->setGLProgramState(glProgramState);
}

void ImageView::setBlendFunc(const BlendFunc &blendFunc)
{
    _imageRenderer->setBlendFunc(blendFunc);
}
    
const BlendFunc& ImageView::getBlendFunc() const
{
    return _imageRenderer->getBlendFunc();
}

}

NS_CC_END