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108 lines
2.8 KiB
108 lines
2.8 KiB
/********************************************************************
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created: 2014/10/01
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created: 01:10:2014 16:32
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filename: SSkinAPNG.h
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file base: SSkinAPNG
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file ext: h
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author: huangjianxiong
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purpose: 动画PNG（APNG）扩展支持，依赖于当前使用的图片解码器。
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目前只有imgdecoder-png支持APNG解码
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*********************************************************************/
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#pragma once
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#include <interface/SSkinobj-i.h>
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#include <unknown/obj-ref-impl.hpp>
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#include "SSkinAni.h"
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namespace SOUI
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{
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/**
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* @class SSkinAPNG
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* @brief APNG图片加载及显示对象
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*
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* Describe
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*/
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class SSkinAPNG : public SSkinAni
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{
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SOUI_CLASS_NAME(SSkinAPNG, L"apng")
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public:
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SSkinAPNG();
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~SSkinAPNG();
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/**
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* LoadFromFile
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* @brief 从文件加载APNG
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* @param LPCTSTR pszFileName -- 文件名
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* @return int -- APNG帧数，0-失败
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* Describe
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*/
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int LoadFromFile(LPCTSTR pszFileName);
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/**
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* LoadFromMemory
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* @brief 从内存加载APNG
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* @param LPVOID pBits -- 内存地址
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* @param size_t szData -- 内存数据长度
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* @return int -- APNG帧数，0-失败
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* Describe
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*/
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int LoadFromMemory(LPVOID pBits,size_t szData);
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SOUI_ATTRS_BEGIN()
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ATTR_CUSTOM(L"src",OnAttrSrc) //XML文件中指定的图片资源名,(type:name)
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SOUI_ATTRS_END()
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protected:
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/**
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* GetStates
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* @brief 获得GIF帧数
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* @return int -- 帧数
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* Describe
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*/
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virtual int GetStates() const override;
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/**
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* GetSkinSize
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* @brief 获得图片大小
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* @return SIZE -- 图片大小
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* Describe
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*/
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virtual SIZE GetSkinSize() const override;
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/**
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* GetFrameDelay
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* @brief 获得指定帧的显示时间
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* @param int iFrame -- 帧号,为-1时代表获得当前帧的延时
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* @return long -- 延时时间(*10ms)
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* Describe
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*/
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virtual long GetFrameDelay(int iFrame=-1) const override;
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/**
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* Draw
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* @brief 绘制指定帧的GIF图
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* @param IRenderTarget * pRT -- 绘制目标
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* @param LPCRECT rcDraw -- 绘制范围
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* @param DWORD dwState -- 绘制状态，这里被解释为帧号
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* @param BYTE byAlpha -- 透明度
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* @return void
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* Describe
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*/
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virtual void _DrawByIndex2(IRenderTarget *pRT, LPCRECT rcDraw, int dwState,BYTE byAlpha=0xFF) const override;
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virtual void _Scale(ISkinObj *pObj, int nScale) override;
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IBitmap * GetFrameImage(int iFrame=-1);
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protected:
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HRESULT OnAttrSrc(const SStringW &strValue,BOOL bLoading);
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int _InitImgFrame(IImgX *pImgX);
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protected:
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SAniFrame * m_pFrames;
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};
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}//end of name space SOUI
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