axmol/cocos2dx/include/CCTextFieldTTF.h

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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#ifndef __CC_TEXT_FIELD_H__
#define __CC_TEXT_FIELD_H__

#include "CCLabelTTF.h"
#include "CCIMEDelegate.h"
#include "CCTouchDelegateProtocol.h"

NS_CC_BEGIN;

/**
@brief	A simple text input field with system TTF font.
*/

class CC_DLL CCTextFieldTTF : public CCLabelTTF, public CCIMEDelegate//, public CCTargetedTouchDelegate
{
public:
    CCTextFieldTTF();
    virtual ~CCTextFieldTTF();

    //char * description();

    /** creates a CCTextFieldTTF from a fontname, alignment, dimension and font size */
    static CCTextFieldTTF * textFieldWithPlaceHolder(const char *placeholder, CCSize dimensions, CCTextAlignment alignment, const char *fontName, float fontSize);
    /** creates a CCLabelTTF from a fontname and font size */
    static CCTextFieldTTF * textFieldWithPlaceHolder(const char *placeholder, const char *fontName, float fontSize);
    /** initializes the CCTextFieldTTF with a font name, alignment, dimension and font size */
    bool initWithPlaceHolder(const char *placeholder, CCSize dimensions, CCTextAlignment alignment, const char *fontName, float fontSize);
    /** initializes the CCTextFieldTTF with a font name and font size */
    bool initWithPlaceHolder(const char *placeholder, const char *fontName, float fontSize);

    /**
    @brief	Open keyboard and receive input text.
    */
    virtual bool attachWithIME();

    /**
    @brief	End text input  and close keyboard.
    */
    virtual bool detachWithIME();

    //////////////////////////////////////////////////////////////////////////
    // properties
    //////////////////////////////////////////////////////////////////////////
    
    // input text property
public:
    virtual void setString(const char *text);
    virtual const char* getString(void);
protected:
    std::string * m_pInputText;

    // place holder text property
    // place holder text displayed when there is no text in the text field.
public:
    virtual void setPlaceHolder(const char * text);
    virtual const char * getPlaceHolder(void);
protected:
    std::string * m_pPlaceHolder;
    bool          m_bLock;          // when insertText or deleteBackward called, m_bLock is true
protected:

    //////////////////////////////////////////////////////////////////////////
    // CCIMEDelegate interface
    //////////////////////////////////////////////////////////////////////////

    virtual bool canAttachWithIME();
    virtual bool canDetachWithIME();
    virtual void insertText(const char * text, int len);
    virtual void deleteBackward();

private:
    class LengthStack;
    LengthStack * m_pLens;
};

NS_CC_END;

#endif	// __CC_TEXT_FIELD_H__