/**
* Copyright (C) 2014-2050 
* All rights reserved.
* 
* @file       SFontPool.h
* @brief      
* @version    v1.0      
* @author     SOUI group   
* @date       2014/08/02
* 
* Describe    SOUI字体管理模块
*/

#pragma once

#include <core/ssingletonmap.h>
#include <interface/SRender-i.h>
#include <res.mgr/SFontInfo.h>
#include <unknown/obj-ref-impl.hpp>

#define FF_DEFAULTFONT L""

/**
* @class     FontKey
* @brief      一个FONT的KEY
* 
* Describe    用于实现一个font map
*/
namespace SOUI
{
    /**
    * @class     CElementTraits< FontKey >
    * @brief      FontKey的Hash及比较模板
    * 
    * Describe    用于实现一个font map
    */
    template<>
    class CElementTraits< FontInfo > :
        public CElementTraitsBase<FontInfo >
    {
    public:
        static ULONG Hash( INARGTYPE fontKey )
        {
            ULONG uRet=SOUI::CElementTraits<SStringW>::Hash(fontKey.strFaceName);
            uRet = (uRet<<5) + SOUI::CElementTraits<SStringW>::Hash(fontKey.strPropEx);
            uRet = (uRet<<5) +(UINT)fontKey.style.dwStyle+1;
            return uRet;
        }

        static bool CompareElements( INARGTYPE element1, INARGTYPE element2 )
        {
            return element1.strFaceName==element2.strFaceName
                && element1.strPropEx==element2.strPropEx
                && element1.style.dwStyle==element2.style.dwStyle;
        }

        static int CompareElementsOrdered( INARGTYPE element1, INARGTYPE element2 )
        {
            int nRet= element1.strFaceName.Compare(element2.strFaceName);
            if(nRet == 0)
                nRet = element1.strPropEx.Compare(element2.strPropEx);
            if(nRet == 0)
                nRet = element1.style.dwStyle-element2.style.dwStyle;
            return nRet;
        }
    };

    typedef IFont * IFontPtr;

	struct IDefFontListener{
		virtual void OnDefFontChanged() = 0;
	};

    /**
    * @class      SFontPool
    * @brief      font pool
    * 
    * Describe
    */
    class SOUI_EXP SFontPool :public SSingletonMap<SFontPool,IFontPtr,FontInfo>
    {
		SINGLETON2_TYPE(SINGLETON_FONTPOOL)
    public:
        SFontPool(IRenderFactory *pRendFactory);

		static SStringW FontInfoToString(const FontInfo &fontInfo);
		static FontInfo FontInfoFromString(const SStringW &strFontInfo);

        /**
         * GetFont
         * @brief    获得与指定的strFont对应的IFontPtr
         * @param    const SStringW & strFont --  font描述字符串
         * @return   IFontPtr -- font对象
         *
         * Describe  描述字符串格式如：face:宋体,bold:0,italic:1,underline:1,strike:1,adding:10
         */
        IFontPtr GetFont(const SStringW & strFont,int scale);

		/**
         * GetFont
         * @brief    获得与指定的font key对应的IFontPtr
         * @param    FONTSTYLE style --  字体风格
         * @param    LPCTSTR strFaceName --  字体名
         * @return   IFontPtr -- font对象
         * Describe  
         */    
		IFontPtr GetFont(FONTSTYLE style,const SStringW& strFaceName = SStringW(),pugi::xml_node xmlExProp = pugi::xml_node());

		void SetDefFontInfo(const FontInfo & fontInfo);

		void SetDefFontInfo(const SStringW & strFontInfo);
    protected:

		const FontInfo & GetDefFontInfo() const;

        static void OnKeyRemoved(const IFontPtr & obj);

		IFontPtr _CreateFont(const LOGFONT &lf);
        
		IFontPtr _CreateFont(const FontInfo &fontInfo,pugi::xml_node xmlExProp);

        SAutoRefPtr<IRenderFactory> m_RenderFactory;
		FontInfo					m_defFontInfo;
		SCriticalSection			m_cs;
    };

}//namespace SOUI