text: /****************************************************************************
  Copyright (c) 2010 cocos2d-x.org
  
  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.
  ****************************************************************************/
  
  #ifndef __CC_IMAGE_H_YANGWS_20110115__
  #define __CC_IMAGE_H_YANGWS_20110115__
  
  #include "CCCommon.h"
  
  NS_CC_BEGIN;
  
  class CC_DLL CCImage
  {
  public:
      CCImage();
      ~CCImage();
  
      typedef enum
      {
          kFmtJpg = 0,
          kFmtPng,
  		kFmtRawData,
  		kFmtUnKnown
      }EImageFormat;
  
      typedef enum
      {
          kAlignCenter        = 0x33, ///< Horizontal center and vertical center.
          kAlignTop           = 0x13, ///< Horizontal center and vertical top.
          kAlignTopRight      = 0x12, ///< Horizontal right and vertical top.
          kAlignRight         = 0x32, ///< Horizontal right and vertical center.
          kAlignBottomRight   = 0x22, ///< Horizontal right and vertical bottom.
          kAlignBottom        = 0x23, ///< Horizontal center and vertical bottom.
          kAlignBottomLeft    = 0x21, ///< Horizontal left and vertical bottom.
          kAlignLeft          = 0x31, ///< Horizontal left and vertical center.
          kAlignTopLeft       = 0x11, ///< Horizontal left and vertical top.
      }ETextAlign;
  
      /** 
      @brief  Load the image from the specified path. 
      @param strPath   the absolute file path
      @param imageType the type of image, now only support tow types.
      @return  true if load correctly
      */
      bool initWithImageFile(const char * strPath, EImageFormat imageType = kFmtPng);
  
  	/*
  	 @brief The same meaning as initWithImageFile, but it is thread safe. It is casued by
  	        loadImage() in CCTextureCache.cpp.
  	 @param fullpath  full path of the file   
       @param imageType the type of image, now only support tow types.
       @return  true if load correctly
  	 */
  	bool initWithImageFileThreadSafe(const char *fullpath, EImageFormat imageType = kFmtPng);
  
      /**
      @brief  Load image from stream buffer.
  
  	@warning kFmtRawData only support RGBA8888
      @param pBuffer  stream buffer that hold the image data
      @param nLength  the length of data(managed in byte)
  	@param nWidth, nHeight, nBitsPerComponent are used for kFmtRawData
      @return true if load correctly
      */
      bool initWithImageData(void * pData, 
  						   int nDataLen, 
  						   EImageFormat eFmt = kFmtPng,
  						   int nWidth = 0,
  						   int nHeight = 0,
  						   int nBitsPerComponent = 8);
  
      /**
      @brief	Create image with specified string.
      @param  pText       the text which the image show, nil cause init fail
      @param  nWidth      the image width, if 0, the width match the text's width
      @param  nHeight     the image height, if 0, the height match the text's height
      @param  eAlignMask  the test Alignment
      @param  pFontName   the name of the font which use to draw the text. If nil, use the default system font.
      @param  nSize       the font size, if 0, use the system default size.
      */
      bool initWithString(
          const char *    pText, 
          int             nWidth = 0, 
          int             nHeight = 0,
          ETextAlign      eAlignMask = kAlignCenter,
          const char *    pFontName = 0,
          int             nSize = 0);
  
      unsigned char *   getData()               { return m_pData; }
      int         getDataLen()            { return m_nWidth * m_nHeight; }
  
      bool hasAlpha()                     { return m_bHasAlpha; }
      bool isPremultipliedAlpha()         { return m_bPreMulti; }
  
      void release();
  
      /**
      @brief	Save the CCImage data to specified file with specified format.
  	@param	pszFilePath		the file's absolute path, including file subfix
  	@param	bIsToRGB		if the image is saved as RGB format
      */
      bool saveToFile(const char *pszFilePath, bool bIsToRGB = true);
  
      CC_SYNTHESIZE_READONLY(short,   m_nWidth,       Width);
      CC_SYNTHESIZE_READONLY(short,   m_nHeight,      Height);
      CC_SYNTHESIZE_READONLY(int,     m_nBitsPerComponent,   BitsPerComponent);
  
  protected:
      bool _initWithJpgData(void *pData, int nDatalen);
      bool _initWithPngData(void *pData, int nDatalen);
  
  	// @warning kFmtRawData only support RGBA8888
  	bool _initWithRawData(void *pData, int nDatalen, int nWidth, int nHeight, int nBitsPerComponent);
  
  	bool _saveImageToPNG(const char *pszFilePath, bool bIsToRGB = true);
  	bool _saveImageToJPG(const char *pszFilePath);
  
      unsigned char *m_pData;
      bool m_bHasAlpha;
      bool m_bPreMulti;
  
  private:
      // noncopyable
      CCImage(const CCImage&    rImg);
      CCImage & operator=(const CCImage&);
  };
  
  NS_CC_END;
  
  #endif	// __CC_IMAGE_H_YANGWS_20110115__
  