axmol/cocos2dx/label_nodes/CCLabelAtlas.h

/****************************************************************************
Copyright (c) 2010-2011 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/
#ifndef __CCLABEL_ATLAS_H__
#define __CCLABEL_ATLAS_H__

#include "CCAtlasNode.h"

NS_CC_BEGIN

/** @brief CCLabelAtlas is a subclass of CCAtlasNode.

It can be as a replacement of CCLabel since it is MUCH faster.

CCLabelAtlas versus CCLabel:
- CCLabelAtlas is MUCH faster than CCLabel
- CCLabelAtlas "characters" have a fixed height and width
- CCLabelAtlas "characters" can be anything you want since they are taken from an image file

A more flexible class is CCLabelBMFont. It supports variable width characters and it also has a nice editor.
*/
class CC_DLL CCLabelAtlas : public CCAtlasNode, public CCLabelProtocol
{
public:
    CCLabelAtlas()
        :m_sString("")
    {}
    virtual ~CCLabelAtlas()
    { 
        m_sString.clear(); 
    }
    /** creates the CCLabelAtlas with a string, a char map file(the atlas), the width and height of each element and the starting char of the atlas 
    @warning: This interface will be deprecated in future.
    */
    static CCLabelAtlas * labelWithString(const char *label, const char *charMapFile, unsigned int itemWidth, unsigned int itemHeight, unsigned int startCharMap);
    
    /** creates the CCLabelAtlas with a string and a configuration file
    @warning: This interface will be deprecated in future.
    @since v2.0
    */
    static CCLabelAtlas* labelWithString(const char *sring, const char *fntFile);

    /** creates the CCLabelAtlas with a string, a char map file(the atlas), the width and height of each element and the starting char of the atlas */
    static CCLabelAtlas * create(const char *label, const char *charMapFile, unsigned int itemWidth, unsigned int itemHeight, unsigned int startCharMap);
    
    /** creates the CCLabelAtlas with a string and a configuration file
     @since v2.0
     */
    static CCLabelAtlas* create(const char *sring, const char *fntFile);

    /** initializes the CCLabelAtlas with a string, a char map file(the atlas), the width and height of each element and the starting char of the atlas */
    bool initWithString(const char *label, const char *charMapFile, unsigned int itemWidth, unsigned int itemHeight, unsigned int startCharMap);
    
    /** initializes the CCLabelAtlas with a string and a configuration file
     @since v2.0
     */
    bool initWithString(const char *string, const char *fntFile);
    // super methods
    virtual void updateAtlasValues();
    virtual void setString(const char *label);
    virtual const char* getString(void);
#if CC_LABELATLAS_DEBUG_DRAW
    virtual void draw();
#endif

protected:
    // string to render
    std::string m_sString;
    // the first char in the charmap
    unsigned int m_uMapStartChar;
};

NS_CC_END

#endif //__CCLABEL_ATLAS_H__