text: /****************************************************************************
  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
  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 NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO 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 "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;
      }
      _textureFile = fileName;
      _imageTexType = texType;
      switch (_imageTexType)
      {
          case TextureResType::LOCAL:
  		{
  			if (_imageRenderer)
  			{
  				removeProtectedChild(_imageRenderer);
  				initRenderer();
  			}
  			_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
  