axmol/cocos2dx/label_nodes/CCLabelAtlas.h

/****************************************************************************
Copyright (c) 2010-2012 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
of this software and associated documentation files (the "Software"), to deal
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****************************************************************************/
#ifndef __CCLABEL_ATLAS_H__
#define __CCLABEL_ATLAS_H__

#include "base_nodes/CCAtlasNode.h"

NS_CC_BEGIN

/**
 * @addtogroup GUI
 * @{
 * @addtogroup label
 * @{
 */

/** @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()
        :_string("")
    {}
    virtual ~CCLabelAtlas()
    { 
        _string.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 */
    static CCLabelAtlas * create(const char *string, 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 *string, 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 *string, 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);
    
    /** initializes the CCLabelAtlas with a string, a texture, the width and height in points of each element and the starting char of the atlas */
    bool initWithString(const char* string, CCTexture2D* texture, unsigned int itemWidth, unsigned int itemHeight, unsigned int startCharMap);
    
    // 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 _string;
    // the first char in the charmap
    unsigned int _mapStartChar;
};

// end of GUI group
/// @}
/// @}


NS_CC_END

#endif //__CCLABEL_ATLAS_H__