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Sweden-Number/dlls/shell32/iconcache.c

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/*
* shell icon cache (SIC)
*
* Copyright 1998, 1999 Juergen Schmied
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "winbase.h"
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "winreg.h"
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "heap.h"
#include "wine/debug.h"
#include "shellapi.h"
#include "shlguid.h"
#include "pidl.h"
#include "shell32_main.h"
#include "undocshell.h"
#include "shlwapi.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
/********************** THE ICON CACHE ********************************/
#define INVALID_INDEX -1
typedef struct
{
LPSTR sSourceFile; /* file (not path!) containing the icon */
DWORD dwSourceIndex; /* index within the file, if it is a resoure ID it will be negated */
DWORD dwListIndex; /* index within the iconlist */
DWORD dwFlags; /* GIL_* flags */
DWORD dwAccessTime;
} SIC_ENTRY, * LPSIC_ENTRY;
static HDPA sic_hdpa = 0;
static CRITICAL_SECTION SHELL32_SicCS = CRITICAL_SECTION_INIT("SHELL32_SicCS");
/*****************************************************************************
* SIC_CompareEntries
*
* NOTES
* Callback for DPA_Search
*/
static INT CALLBACK SIC_CompareEntries( LPVOID p1, LPVOID p2, LPARAM lparam)
{ TRACE("%p %p\n", p1, p2);
if (((LPSIC_ENTRY)p1)->dwSourceIndex != ((LPSIC_ENTRY)p2)->dwSourceIndex) /* first the faster one*/
return 1;
if (strcasecmp(((LPSIC_ENTRY)p1)->sSourceFile,((LPSIC_ENTRY)p2)->sSourceFile))
return 1;
return 0;
}
/*****************************************************************************
* SIC_IconAppend [internal]
*
* NOTES
* appends a icon pair to the end of the cache
*/
static INT SIC_IconAppend (LPCSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon)
{ LPSIC_ENTRY lpsice;
INT ret, index, index1;
char *path;
TRACE("%s %i %x %x\n", sSourceFile, dwSourceIndex, hSmallIcon ,hBigIcon);
lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
path = PathFindFileNameA(sSourceFile);
lpsice->sSourceFile = HeapAlloc( GetProcessHeap(), 0, strlen(path)+1 );
strcpy( lpsice->sSourceFile, path );
lpsice->dwSourceIndex = dwSourceIndex;
EnterCriticalSection(&SHELL32_SicCS);
index = pDPA_InsertPtr(sic_hdpa, 0x7fff, lpsice);
if ( INVALID_INDEX == index )
{
SHFree(lpsice);
ret = INVALID_INDEX;
}
else
{
index = ImageList_AddIcon (ShellSmallIconList, hSmallIcon);
index1= ImageList_AddIcon (ShellBigIconList, hBigIcon);
if (index!=index1)
{
FIXME("iconlists out of sync 0x%x 0x%x\n", index, index1);
}
lpsice->dwListIndex = index;
ret = lpsice->dwListIndex;
}
LeaveCriticalSection(&SHELL32_SicCS);
return ret;
}
/****************************************************************************
* SIC_LoadIcon [internal]
*
* NOTES
* gets small/big icon by number from a file
*/
static INT SIC_LoadIcon (LPCSTR sSourceFile, INT dwSourceIndex)
{ HICON hiconLarge=0;
HICON hiconSmall=0;
PrivateExtractIconsA( sSourceFile, dwSourceIndex, 32, 32, &hiconLarge, 0, 1, 0 );
PrivateExtractIconsA( sSourceFile, dwSourceIndex, 16, 16, &hiconSmall, 0, 1, 0 );
if ( !hiconLarge || !hiconSmall)
{
WARN("failure loading icon %i from %s (%x %x)\n", dwSourceIndex, sSourceFile, hiconLarge, hiconSmall);
return -1;
}
return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge);
}
/*****************************************************************************
* SIC_GetIconIndex [internal]
*
* Parameters
* sSourceFile [IN] filename of file containing the icon
* index [IN] index/resID (negated) in this file
*
* NOTES
* look in the cache for a proper icon. if not available the icon is taken
* from the file and cached
*/
INT SIC_GetIconIndex (LPCSTR sSourceFile, INT dwSourceIndex )
{ SIC_ENTRY sice;
INT ret, index = INVALID_INDEX;
TRACE("%s %i\n", sSourceFile, dwSourceIndex);
sice.sSourceFile = PathFindFileNameA(sSourceFile);
sice.dwSourceIndex = dwSourceIndex;
EnterCriticalSection(&SHELL32_SicCS);
if (NULL != pDPA_GetPtr (sic_hdpa, 0))
{
index = pDPA_Search (sic_hdpa, &sice, -1L, SIC_CompareEntries, 0, 0);
}
if ( INVALID_INDEX == index )
{
ret = SIC_LoadIcon (sSourceFile, dwSourceIndex);
}
else
{
TRACE("-- found\n");
ret = ((LPSIC_ENTRY)pDPA_GetPtr(sic_hdpa, index))->dwListIndex;
}
LeaveCriticalSection(&SHELL32_SicCS);
return ret;
}
/****************************************************************************
* SIC_GetIcon [internal]
*
* NOTES
* retrieves the specified icon from the iconcache. if not found tries to load the icon
*/
static HICON WINE_UNUSED SIC_GetIcon (LPCSTR sSourceFile, INT dwSourceIndex, BOOL bSmallIcon )
{ INT index;
TRACE("%s %i\n", sSourceFile, dwSourceIndex);
index = SIC_GetIconIndex(sSourceFile, dwSourceIndex);
if (INVALID_INDEX == index)
{
return INVALID_INDEX;
}
if (bSmallIcon)
return ImageList_GetIcon(ShellSmallIconList, index, ILD_NORMAL);
return ImageList_GetIcon(ShellBigIconList, index, ILD_NORMAL);
}
/*****************************************************************************
* SIC_Initialize [internal]
*
* NOTES
* hack to load the resources from the shell32.dll under a different dll name
* will be removed when the resource-compiler is ready
*/
BOOL SIC_Initialize(void)
{
HICON hSm, hLg;
UINT index;
TRACE("\n");
if (sic_hdpa) /* already initialized?*/
return TRUE;
sic_hdpa = pDPA_Create(16);
if (!sic_hdpa)
{
return(FALSE);
}
ShellSmallIconList = ImageList_Create(16,16,ILC_COLORDDB | ILC_MASK,0,0x20);
ShellBigIconList = ImageList_Create(32,32,ILC_COLORDDB | ILC_MASK,0,0x20);
ImageList_SetBkColor(ShellSmallIconList, GetSysColor(COLOR_WINDOW));
ImageList_SetBkColor(ShellBigIconList, GetSysColor(COLOR_WINDOW));
for (index=1; index<39; index++)
{
hSm = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(index), IMAGE_ICON, 16, 16,LR_SHARED);
hLg = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(index), IMAGE_ICON, 32, 32,LR_SHARED);
if(!hSm)
{
hSm = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(0), IMAGE_ICON, 16, 16,LR_SHARED);
hLg = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(0), IMAGE_ICON, 32, 32,LR_SHARED);
}
SIC_IconAppend ("shell32.dll", index, hSm, hLg);
}
TRACE("hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
return TRUE;
}
/*************************************************************************
* SIC_Destroy
*
* frees the cache
*/
void SIC_Destroy(void)
{
LPSIC_ENTRY lpsice;
int i;
TRACE("\n");
EnterCriticalSection(&SHELL32_SicCS);
if (sic_hdpa && NULL != pDPA_GetPtr (sic_hdpa, 0))
{
for (i=0; i < pDPA_GetPtrCount(sic_hdpa); ++i)
{
lpsice = pDPA_GetPtr(sic_hdpa, i);
SHFree(lpsice);
}
pDPA_Destroy(sic_hdpa);
}
sic_hdpa = NULL;
LeaveCriticalSection(&SHELL32_SicCS);
DeleteCriticalSection(&SHELL32_SicCS);
}
/*************************************************************************
* Shell_GetImageList [SHELL32.71]
*
* PARAMETERS
* imglist[1|2] [OUT] pointer which recive imagelist handles
*
*/
BOOL WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
{ TRACE("(%p,%p)\n",lpBigList,lpSmallList);
if (lpBigList)
{ *lpBigList = ShellBigIconList;
}
if (lpSmallList)
{ *lpSmallList = ShellSmallIconList;
}
return TRUE;
}
/*************************************************************************
* PidlToSicIndex [INTERNAL]
*
* PARAMETERS
* sh [IN] IShellFolder
* pidl [IN]
* bBigIcon [IN]
* uFlags [IN] GIL_*
* pIndex [OUT] index within the SIC
*
*/
BOOL PidlToSicIndex (
IShellFolder * sh,
LPITEMIDLIST pidl,
BOOL bBigIcon,
UINT uFlags,
UINT * pIndex)
{
IExtractIconA *ei;
char szIconFile[MAX_PATH]; /* file containing the icon */
INT iSourceIndex; /* index or resID(negated) in this file */
BOOL ret = FALSE;
UINT dwFlags = 0;
TRACE("sf=%p pidl=%p %s\n", sh, pidl, bBigIcon?"Big":"Small");
if (SUCCEEDED (IShellFolder_GetUIObjectOf(sh, 0, 1, &pidl, &IID_IExtractIconA, 0, (void **)&ei)))
{
if (SUCCEEDED(IExtractIconA_GetIconLocation(ei, uFlags, szIconFile, MAX_PATH, &iSourceIndex, &dwFlags)))
{
*pIndex = SIC_GetIconIndex(szIconFile, iSourceIndex);
ret = TRUE;
}
IExtractIconA_Release(ei);
}
if (INVALID_INDEX == *pIndex) /* default icon when failed */
*pIndex = 1;
return ret;
}
/*************************************************************************
* SHMapPIDLToSystemImageListIndex [SHELL32.77]
*
* PARAMETERS
* sh [IN] pointer to an instance of IShellFolder
* pidl [IN]
* pIndex [OUT][OPTIONAL] SIC index for big icon
*
*/
int WINAPI SHMapPIDLToSystemImageListIndex(
LPSHELLFOLDER sh,
LPCITEMIDLIST pidl,
UINT * pIndex)
{
UINT Index;
TRACE("(SF=%p,pidl=%p,%p)\n",sh,pidl,pIndex);
pdump(pidl);
if (pIndex)
PidlToSicIndex ( sh, pidl, 1, 0, pIndex);
PidlToSicIndex ( sh, pidl, 0, 0, &Index);
return Index;
}
/*************************************************************************
* Shell_GetCachedImageIndex [SHELL32.72]
*
*/
INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, BOOL bSimulateDoc)
{
WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_a(szPath), nIndex, bSimulateDoc);
return SIC_GetIconIndex(szPath, nIndex);
}
INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, BOOL bSimulateDoc)
{ INT ret;
LPSTR sTemp = HEAP_strdupWtoA (GetProcessHeap(),0,szPath);
WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_w(szPath), nIndex, bSimulateDoc);
ret = SIC_GetIconIndex(sTemp, nIndex);
HeapFree(GetProcessHeap(),0,sTemp);
return ret;
}
INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, BOOL bSimulateDoc)
{ if( SHELL_OsIsUnicode())
return Shell_GetCachedImageIndexW(szPath, nIndex, bSimulateDoc);
return Shell_GetCachedImageIndexA(szPath, nIndex, bSimulateDoc);
}
/*************************************************************************
* ExtractIconEx [SHELL32.@]
*/
HICON WINAPI ExtractIconExAW ( LPCVOID lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ if (SHELL_OsIsUnicode())
return ExtractIconExW ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
return ExtractIconExA ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
}
/*************************************************************************
* ExtractIconExA [SHELL32.@]
* RETURNS
* 0 no icon found
* 1 file is not valid
* HICON handle of a icon (phiconLarge/Small == NULL)
*/
HICON WINAPI ExtractIconExA ( LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ HICON ret=0;
TRACE("file=%s idx=%i %p %p num=%i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons );
if (nIconIndex==-1) /* Number of icons requested */
return PrivateExtractIconsA( lpszFile, -1, 0, 0, NULL, 0, 0, 0 );
if (phiconLarge)
{
ret = PrivateExtractIconsA( lpszFile, nIconIndex, 32, 32, phiconLarge, 0, nIcons, 0 );
if ( nIcons==1)
{ ret = phiconLarge[0];
}
}
/* if no pointers given and one icon expected, return the handle directly*/
if (!phiconLarge && !phiconSmall && nIcons==1 )
phiconSmall = &ret;
if (phiconSmall)
{
ret = PrivateExtractIconsA( lpszFile, nIconIndex, 16, 16, phiconSmall, 0, nIcons, 0 );
if ( nIcons==1 )
{ ret = phiconSmall[0];
}
}
return ret;
}
/*************************************************************************
* ExtractIconExW [SHELL32.@]
*/
HICON WINAPI ExtractIconExW ( LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ LPSTR sFile;
DWORD ret;
TRACE("file=%s idx=%i %p %p num=%i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons );
sFile = HEAP_strdupWtoA (GetProcessHeap(),0,lpszFile);
ret = ExtractIconExA ( sFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
HeapFree(GetProcessHeap(),0,sFile);
return ret;
}
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