一、概述
CCSpriteFrame继承自CCObject。看了源码后感觉和CCTexture2D一样，不常直接使用、更多作为中间变量。源码如下：
class CC_DLL CCSpriteFrame : public CCObject
{
public:
// attributes
inline const CCRect& getRectInPixels(void) { return m_obRectInPixels; }
void setRectInPixels(const CCRect& rectInPixels);
inline bool isRotated(void) { return m_brotated; }
inline void setRotated(bool brotated) { m_brotated = brotated; }
/** get rect of the frame */
inline const CCRect& getRect(void) { return m_obRect; }
/** set rect of the frame */
void setRect(const CCRect& rect);
/** get offset of the frame */
const CCPoint& getoffsetInPixels(void);
/** set offset of the frame */
void setoffsetInPixels(const CCPoint& offsetInPixels);
/** get original size of the trimmed image */
inline const CCSize& getoriginalSizeInPixels(void) { return m_obOriginalSizeInPixels; }
/** set original size of the trimmed image */
inline void setoriginalSizeInPixels(const CCSize& sizeInPixels) { m_obOriginalSizeInPixels = sizeInPixels; }
/** get original size of the trimmed image */
inline const CCSize& getoriginalSize(void) { return m_obOriginalSize; }
/** set original size of the trimmed image */
inline void setoriginalSize(const CCSize& sizeInPixels) { m_obOriginalSize = sizeInPixels; }
/** get texture of the frame */
CCTexture2D* getTexture(void);
/** set texture of the frame,the texture is retained */
void setTexture(CCTexture2D* pobTexture);
const CCPoint& getoffset(void);
void setoffset(const CCPoint& offsets);
public:
/**
* @js NA
* @lua NA
*/
~CCSpriteFrame(void);
/** * @js NA * @lua NA */
virtual CCObject* copyWithZone(CCZone *pZone);
/** Create a CCSpriteFrame with a texture filename,rect in points. It is assumed that the frame was not trimmed. */
static CCSpriteFrame* create(const char* filename,const CCRect& rect);
/** Create a CCSpriteFrame with a texture filename,rect,rotated,offset and originalSize in pixels. The originalSize is the size in pixels of the frame before being trimmed. */
static CCSpriteFrame* create(const char* filename,const CCRect& rect,bool rotated,const CCPoint& offset,const CCSize& originalSize);
/** Create a CCSpriteFrame with a texture,rect in points. It is assumed that the frame was not trimmed. */
static CCSpriteFrame* createWithTexture(CCTexture2D* pobTexture,const CCRect& rect);
/** Create a CCSpriteFrame with a texture,offset and originalSize in pixels. The originalSize is the size in points of the frame before being trimmed. */
static CCSpriteFrame* createWithTexture(CCTexture2D* pobTexture,const CCSize& originalSize);
public:
/** Initializes a CCSpriteFrame with a texture,rect in points.
It is assumed that the frame was not trimmed.
*/
bool initWithTexture(CCTexture2D* pobTexture,const CCRect& rect);
/** Initializes a CCSpriteFrame with a texture filename,rect in points; It is assumed that the frame was not trimmed. */
bool initWithTextureFilename(const char* filename,const CCRect& rect);
/** Initializes a CCSpriteFrame with a texture,offset and originalSize in pixels. The originalSize is the size in points of the frame before being trimmed. */
bool initWithTexture(CCTexture2D* pobTexture,const CCSize& originalSize);
/** Initializes a CCSpriteFrame with a texture,offset and originalSize in pixels. The originalSize is the size in pixels of the frame before being trimmed. @since v1.1 */
bool initWithTextureFilename(const char* filename,const CCSize& originalSize);
protected:
CCPoint m_obOffset;
CCSize m_obOriginalSize;
CCRect m_obRectInPixels;
bool m_brotated;
CCRect m_obRect;
CCPoint m_obOffsetInPixels;
CCSize m_obOriginalSizeInPixels;
CCTexture2D *m_pobTexture;
std::string m_strTextureFilename;
};
二、分析
1、CCSpriteFrame可通过：文件名、纹理、纹理文件名（不知道和前面的文件名有什么区别）生成
2、可以获取或设置这些属性的值：角度以及是否有角度偏转、矩形、大小、2D纹理、偏移
