XICON.H

//******************************************************************************************* 
// 
// Filename : XIcon.h 
// 
//defines for  CImageList and CXIcon   
// 
// Copyright 1994 - 1998 Microsoft Corporation. All rights reserved 
// 
//******************************************************************************************* 
 
 
#ifndef _XICON_H_ 
#define _XICON_H_ 
 
class CImageList 
{ 
public: 
CImageList() : m_himl(NULL) {} 
~CImageList() {if (m_himl) ImageList_Destroy(m_himl);} 
 
operator HIMAGELIST() {return(m_himl);} 
 
BOOL Create(int cx, int cy, int cGrow) 
{ 
m_himl = ImageList_Create(cx, cy, ILC_MASK, cGrow, cGrow); 
return(m_himl != NULL); 
} 
 
private: 
HIMAGELIST m_himl; 
} ; 
 
class CXIcon 
{ 
public: 
CXIcon() {} 
~CXIcon() {} 
 
BOOL Init(HWND hwndLB, UINT idiDef); 
CImageList& GetIML(BOOL bLarge) {return(bLarge ? m_cimlLg : m_cimlSm);} 
 
enum 
{ 
AI_LARGE = 0x0001, 
AI_SMALL = 0x0002, 
} ; 
 
int AddIcon(HICON hIcon, UINT uFlags=AI_LARGE|AI_SMALL) 
{ 
int i = -1; 
 
if (uFlags & AI_LARGE) 
{ 
i = ImageList_AddIcon(m_cimlLg, hIcon); 
} 
 
if (uFlags & AI_SMALL) 
{ 
i = ImageList_AddIcon(m_cimlSm, hIcon); 
} 
 
return(i); 
} 
 
int GetIcon(IShellFolder *psf, LPCITEMIDLIST pidl); 
 
private: 
int GetCachedIndex(LPCSTR szIconFile, int iIndex, UINT wFlags); 
int CacheIcons(HICON hiconLarge, HICON hiconSmall, 
LPCSTR szIconFile, int iIndex, UINT wFlags); 
static HRESULT ExtractIcon(LPCSTR szIconFile, int iIndex, UINT wFlags, 
HICON *phiconLarge, HICON *phiconSmall, DWORD dwSizes); 
static UINT GetIDString(LPSTR pszIDString, UINT uIDLen, 
LPCSTR szIconFile, int iIndex, UINT wFlags); 
 
 
HWND m_hwndLB; 
 
CImageList m_cimlLg; 
CImageList m_cimlSm; 
} ; 
 
#endif // _XICON_H_