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115 lines
2.8 KiB
115 lines
2.8 KiB
/*--------------------------------------------------------------------------*
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*
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* Microsoft Windows
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* Copyright (C) Microsoft Corporation, 1992 - 1999
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*
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* File: picon.h
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*
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* Contents: Interface file for CPersistableIcon
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*
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* History: 19-Nov-98 jeffro Created
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*
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*--------------------------------------------------------------------------*/
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#ifndef PICON_H
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#define PICON_H
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#pragma once
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#include <objidl.h> // for IStorage
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#include "tstring.h"
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#include "smarticon.h"
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#include "cpputil.h"
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class CPersistableIconData
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{
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public:
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CPersistableIconData() :
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m_nIndex (-1)
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{}
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CPersistableIconData(LPCTSTR pszIconFile, int nIndex) :
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m_strIconFile (pszIconFile), m_nIndex (nIndex)
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{}
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// default copy construction and assignment are fine
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// CPersistableIconData (const CPersistableIconData& other)
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// CPersistableIconData& operator= (const CPersistableIconData& other)
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void Clear ()
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{
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m_strIconFile.erase();
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m_nIndex = -1;
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ASSERT (m_strIconFile.empty());
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}
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bool operator== (const CPersistableIconData& other) const
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{ return ((m_nIndex == other.m_nIndex) && (m_strIconFile == other.m_strIconFile)); }
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bool operator!= (const CPersistableIconData& other) const
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{ return (!operator== (other)); }
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public:
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tstring m_strIconFile;
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int m_nIndex;
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};
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class CXMLPersistableIcon;
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class CPersistableIcon
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{
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DECLARE_NOT_COPIABLE (CPersistableIcon);
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DECLARE_NOT_ASSIGNABLE (CPersistableIcon);
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// these guys need to assign new icons to the object
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friend class CXMLPersistableIcon;
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friend HRESULT LoadIconFromXMLData(LPCSTR pFileData, DWORD dwLen, CPersistableIcon &persistableIcon);
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public:
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CPersistableIcon () {}
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~CPersistableIcon ();
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operator bool () const
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{ return (!m_Data.m_strIconFile.empty()); }
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bool operator== (const CPersistableIconData& data) const
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{ return (m_Data == data); }
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bool operator!= (const CPersistableIconData& data) const
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{ return (m_Data != data); }
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CPersistableIcon& operator= (const CPersistableIconData& data);
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HRESULT GetIcon (int nIconSize, CSmartIcon& icon) const;
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void GetData (CPersistableIconData& data) const
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{ data = m_Data; }
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HRESULT Load (LPCWSTR pszFilename);
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HRESULT Load (IStorage* pstg);
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private:
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void Cleanup();
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bool ExtractIcons();
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private:
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CPersistableIconData m_Data;
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CSmartIcon m_icon16;
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CSmartIcon m_icon32;
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static const LPCWSTR s_pszDefaultStorage;
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static const LPCWSTR s_pszIconFileStream;
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static const LPCWSTR s_pszIconBitsStream;
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};
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IStream& operator>> (IStream& stm, CPersistableIconData& data);
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extern const LPCWSTR g_pszCustomDataStorage;
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#endif /* PICON_H */
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