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reactos/dll/win32/user32/windows/icon.c
Jérôme Gardou c16ad873a6 sync with trunk (r46275) 
svn path=/branches/reactos-yarotows/; revision=46279
2010-03-19 21:09:21 +00:00

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/*
* ReactOS kernel
* Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* PROJECT: ReactOS user32.dll
* FILE: dll/win32/user32/windows/icon.c
* PURPOSE: Icon
* PROGRAMMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
* UPDATE HISTORY:
* 09-05-2001 CSH Created
*/
/* INCLUDES ******************************************************************/
#include <user32.h>
#include <wine/debug.h>
WINE_DEFAULT_DEBUG_CHANNEL(user32);
/* FUNCTIONS *****************************************************************/
HICON
CreateCursorIconFromData(HDC hDC, PVOID ImageData, ICONIMAGE* IconImage, int cxDesired, int cyDesired, int xHotspot, int yHotspot, BOOL fIcon)
{
BYTE BitmapInfoBuffer[sizeof(BITMAPINFOHEADER) + 2 * sizeof(RGBQUAD)];
BITMAPINFO *bwBIH = (BITMAPINFO *)BitmapInfoBuffer;
ICONINFO IconInfo;
IconInfo.fIcon = fIcon;
IconInfo.xHotspot = xHotspot;
IconInfo.yHotspot = yHotspot;
if (IconImage->icHeader.biBitCount == 1)
{
IconInfo.hbmColor = (HBITMAP)0;
IconImage->icHeader.biHeight *= 2;
IconInfo.hbmMask = CreateDIBitmap(hDC, &IconImage->icHeader, CBM_INIT,
ImageData, (BITMAPINFO*)IconImage,
DIB_RGB_COLORS);
}
else
{
/* Create the XOR bitmap */
IconInfo.hbmColor = CreateDIBitmap(hDC, &IconImage->icHeader, CBM_INIT,
ImageData, (BITMAPINFO*)IconImage,
DIB_RGB_COLORS);
/* Make ImageData point to the start of the AND image data. */
ImageData = ((PBYTE)ImageData) + (((IconImage->icHeader.biWidth *
IconImage->icHeader.biBitCount + 31) & ~31) >> 3) *
(IconImage->icHeader.biHeight );
/* Create a BITMAPINFO header for the monochrome part of the icon. */
bwBIH->bmiHeader.biBitCount = 1;
bwBIH->bmiHeader.biWidth = IconImage->icHeader.biWidth;
bwBIH->bmiHeader.biHeight = IconImage->icHeader.biHeight;
bwBIH->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bwBIH->bmiHeader.biPlanes = 1;
bwBIH->bmiHeader.biSizeImage = 0;
bwBIH->bmiHeader.biCompression = BI_RGB;
bwBIH->bmiHeader.biClrImportant = 2;
bwBIH->bmiHeader.biClrUsed = 2;
bwBIH->bmiHeader.biXPelsPerMeter = 0;
bwBIH->bmiHeader.biYPelsPerMeter = 0;
bwBIH->bmiColors[0].rgbBlue = 0;
bwBIH->bmiColors[0].rgbGreen = 0;
bwBIH->bmiColors[0].rgbRed = 0;
bwBIH->bmiColors[0].rgbReserved = 0;
bwBIH->bmiColors[1].rgbBlue = 0xff;
bwBIH->bmiColors[1].rgbGreen = 0xff;
bwBIH->bmiColors[1].rgbRed = 0xff;
bwBIH->bmiColors[1].rgbReserved = 0;
/* Create the AND bitmap. */
IconInfo.hbmMask = CreateDIBitmap(hDC, &bwBIH->bmiHeader, 0,
ImageData, bwBIH, DIB_RGB_COLORS);
SetDIBits(hDC, IconInfo.hbmMask, 0, IconImage->icHeader.biHeight,
ImageData, bwBIH, DIB_RGB_COLORS);
}
/* Create the icon based on everything we have so far */
return NtUserCreateCursorIconHandle(&IconInfo, FALSE);
}
/*
* @implemented
*/
HICON
WINAPI
CopyIcon(HICON hIcon)
{
HICON hRetIcon = NULL;
ICONINFO IconInfo;
if(GetIconInfo(hIcon, &IconInfo))
{
hRetIcon = CreateIconIndirect(&IconInfo);
DeleteObject(IconInfo.hbmColor);
DeleteObject(IconInfo.hbmMask);
}
return hRetIcon;
}
/*
* @implemented
*/
HICON
WINAPI
CreateIcon(
HINSTANCE hInstance,
int nWidth,
int nHeight,
BYTE cPlanes,
BYTE cBitsPixel,
CONST BYTE *ANDbits,
CONST BYTE *XORbits)
{
ICONINFO IconInfo;
IconInfo.fIcon = TRUE;
if (cBitsPixel == 1)
{
nHeight <<= 1;
}
IconInfo.hbmMask = CreateBitmap(nWidth, nHeight, 1, 1, ANDbits);
if(!IconInfo.hbmMask)
{
return (HICON)0;
}
if (cBitsPixel == 1)
{
IconInfo.hbmColor = (HBITMAP)0;
}
else
{
IconInfo.hbmColor = CreateBitmap(nWidth, nHeight, cPlanes, cBitsPixel, XORbits);
if(!IconInfo.hbmColor)
{
DeleteObject(IconInfo.hbmMask);
return (HICON)0;
}
}
return NtUserCreateCursorIconHandle(&IconInfo, FALSE);
}
/*
* @implemented
*/
HICON
WINAPI
CreateIconFromResource(
PBYTE presbits,
DWORD dwResSize,
BOOL fIcon,
DWORD dwVer)
{
return CreateIconFromResourceEx(presbits, dwResSize, fIcon, dwVer, 0, 0, LR_DEFAULTSIZE|LR_SHARED );
}
/*
* @implemented
*/
HICON
WINAPI
CreateIconFromResourceEx(
PBYTE pbIconBits,
DWORD cbIconBits,
BOOL fIcon,
DWORD dwVersion,
int cxDesired,
int cyDesired,
UINT uFlags)
{
ICONIMAGE* SafeIconImage;
HICON hIcon;
ULONG HeaderSize;
ULONG ColourCount;
PVOID Data;
HDC hScreenDc;
WORD wXHotspot;
WORD wYHotspot;
/*
FIXME - does win support LR_SHARED? According to msdn it does but we don't
have useful information to identify the icon
if (uFlags & LR_SHARED)
{
DbgPrint("FIXME: need LR_SHARED support in CreateIconFromResourceEx()\n");
}
*/
TRACE("dwVersion, cxDesired, cyDesired are all ignored in this implementation!\n");
if (! fIcon)
{
wXHotspot = *(WORD*)pbIconBits;
pbIconBits += sizeof(WORD);
wYHotspot = *(WORD*)pbIconBits;
pbIconBits += sizeof(WORD);
cbIconBits -= 2 * sizeof(WORD);
}
else
{
wXHotspot = cxDesired / 2;
wYHotspot = cyDesired / 2;
}
/* get an safe copy of the icon data */
SafeIconImage = RtlAllocateHeap(GetProcessHeap(), 0, cbIconBits);
if (SafeIconImage == NULL)
{
return NULL;
}
memcpy(SafeIconImage, pbIconBits, cbIconBits);
/* Take into acount the original height was for both the AND and XOR images */
SafeIconImage->icHeader.biHeight /= 2;
if (SafeIconImage->icHeader.biSize == sizeof(BITMAPCOREHEADER))
{
BITMAPCOREHEADER* Core = (BITMAPCOREHEADER*)SafeIconImage;
ColourCount = (Core->bcBitCount <= 8) ? (1 << Core->bcBitCount) : 0;
HeaderSize = sizeof(BITMAPCOREHEADER) + ColourCount * sizeof(RGBTRIPLE);
}
else
{
ColourCount = (SafeIconImage->icHeader.biBitCount <= 8) ?
(1 << SafeIconImage->icHeader.biBitCount) : 0;
HeaderSize = sizeof(BITMAPINFOHEADER) + ColourCount * sizeof(RGBQUAD);
}
/* make data point to the start of the XOR image data */
Data = (PBYTE)SafeIconImage + HeaderSize;
/* get a handle to the screen dc, the icon we create is going to be compatable with this */
// FIXME!!! This is a victim of the Win32k Initialization BUG!!!!!
//hScreenDc = CreateDCW(NULL, NULL, NULL, NULL);
hScreenDc = CreateCompatibleDC(NULL);
if (hScreenDc == NULL)
{
RtlFreeHeap(GetProcessHeap(), 0, SafeIconImage);
return(NULL);
}
hIcon = CreateCursorIconFromData(hScreenDc, Data, SafeIconImage, cxDesired, cyDesired, wXHotspot, wYHotspot, fIcon);
RtlFreeHeap(GetProcessHeap(), 0, SafeIconImage);
DeleteDC(hScreenDc);
return hIcon;
}
/*
* @implemented
*/
HICON
WINAPI
CreateIconIndirect(PICONINFO IconInfo)
{
BITMAP ColorBitmap;
BITMAP MaskBitmap;
HBITMAP hbmTemp;
if(!IconInfo)
{
SetLastError(ERROR_INVALID_PARAMETER);
return (HICON)0;
}
if(!GetObjectW(IconInfo->hbmMask, sizeof(BITMAP), &MaskBitmap))
{
return (HICON)0;
}
/* Try to get color bitmap */
if (GetObjectW(IconInfo->hbmColor, sizeof(BITMAP), &ColorBitmap))
{
/* Compare size of color and mask bitmap*/
if (ColorBitmap.bmWidth != MaskBitmap.bmWidth ||
ColorBitmap.bmHeight != MaskBitmap.bmHeight)
{
ERR("Color and mask size are different!");
SetLastError(ERROR_INVALID_PARAMETER);
return (HICON)0;
}
/* Check if color and mask are switched and switch them back */
if (MaskBitmap.bmBitsPixel != 1 && ColorBitmap.bmBitsPixel == 1)
{
hbmTemp = IconInfo->hbmMask;
IconInfo->hbmMask = IconInfo->hbmColor;
IconInfo->hbmColor = hbmTemp;
}
}
return (HICON)NtUserCreateCursorIconHandle(IconInfo, TRUE);
}
/*
* @implemented
*/
BOOL
WINAPI
DestroyIcon(
HICON hIcon)
{
return (BOOL)NtUserDestroyCursor((HANDLE)hIcon, 0);
}
/*
* @implemented
*/
BOOL
WINAPI
DrawIcon(
HDC hDC,
int X,
int Y,
HICON hIcon)
{
return DrawIconEx(hDC, X, Y, hIcon, 0, 0, 0, NULL, DI_NORMAL|DI_DEFAULTSIZE|DI_COMPAT);
}
/*
* @implemented
*/
BOOL
WINAPI
DrawIconEx(
HDC hdc,
int xLeft,
int yTop,
HICON hIcon,
int cxWidth,
int cyWidth,
UINT istepIfAniCur,
HBRUSH hbrFlickerFreeDraw,
UINT diFlags)
{
return (BOOL)NtUserDrawIconEx(hdc, xLeft, yTop, hIcon, cxWidth, cyWidth,
istepIfAniCur, hbrFlickerFreeDraw, diFlags,
0, 0);
}
/*
* @implemented
*/
BOOL
WINAPI
GetIconInfo(
HICON hIcon,
PICONINFO IconInfo)
{
return NtUserGetIconInfo((HANDLE)hIcon, IconInfo, 0, 0, 0, 0);
}
/*
* @implemented
*/
HICON
WINAPI
LoadIconA(
HINSTANCE hInstance,
LPCSTR lpIconName)
{
return(LoadImageA(hInstance, lpIconName, IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE));
}
/*
* @implemented
*/
HICON
WINAPI
LoadIconW(
HINSTANCE hInstance,
LPCWSTR lpIconName)
{
return(LoadImageW(hInstance, lpIconName, IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE));
}
/*
* @implemented
*/
int
WINAPI
LookupIconIdFromDirectory(
PBYTE presbits,
BOOL fIcon)
{
return LookupIconIdFromDirectoryEx(presbits,
fIcon,
fIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
fIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR),
LR_DEFAULTCOLOR);
}
/*
* The following macro function accounts for the irregularities of
* accessing cursor and icon resources in files and resource entries.
*/
typedef BOOL
(*fnGetCIEntry)(LPVOID dir, int n, int *width, int *height, int *bits );
/**********************************************************************
* CURSORICON_FindBestIcon
*
* Find the icon closest to the requested size and number of colors.
*/
static int
CURSORICON_FindBestIcon(LPVOID dir,
fnGetCIEntry get_entry,
int Width,
int Height,
int ColorBits)
{
int i, cx, cy, Bits, BestBits = 0, BestEntry = -1;
UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
UINT iTempXDiff, iTempYDiff, iTempColorDiff;
/* Find Best Fit */
iTotalDiff = 0xFFFFFFFF;
iColorDiff = 0xFFFFFFFF;
for (i = 0; get_entry(dir, i, &cx, &cy, &Bits); i++ )
{
iTempXDiff = abs(Width - cx);
iTempYDiff = abs(Height - cy);
if(iTotalDiff > (iTempXDiff + iTempYDiff))
{
iXDiff = iTempXDiff;
iYDiff = iTempYDiff;
iTotalDiff = iXDiff + iYDiff;
}
}
/* Find Best Colors for Best Fit */
for (i = 0; get_entry(dir, i, &cx, &cy, &Bits); i++ )
{
if(abs(Width - cx) == iXDiff && abs(Height - cy) == iYDiff)
{
iTempColorDiff = abs(ColorBits - Bits);
if(iColorDiff > iTempColorDiff)
{
BestEntry = i;
BestBits = Bits;
iColorDiff = iTempColorDiff;
}
}
}
TRACE("Best Icon: ResId: %d, bits : %d\n", BestEntry, BestBits);
return BestEntry;
}
/**********************************************************************
* CURSORICON_FindBestCursor
*
* Find the cursor closest to the requested size.
* FIXME: parameter 'color' ignored and entries with more than 1 bpp
* ignored too
*/
static int
CURSORICON_FindBestCursor(LPVOID dir,
fnGetCIEntry get_entry,
int Width,
int Height,
int ColorBits)
{
int i, cx, cy, Bits, BestBits = 0, BestEntry = -1;
UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
UINT iTempXDiff, iTempYDiff, iTempColorDiff;
/* Find Best Fit */
iTotalDiff = 0xFFFFFFFF;
iColorDiff = 0xFFFFFFFF;
for (i = 0; get_entry(dir, i, &cx, &cy, &Bits); i++ )
{
iTempXDiff = abs(Width - cx);
iTempYDiff = abs(Height - cy);
if(iTotalDiff > (iTempXDiff + iTempYDiff))
{
iXDiff = iTempXDiff;
iYDiff = iTempYDiff;
iTotalDiff = iXDiff + iYDiff;
}
}
/* Find Best Colors for Best Fit */
for (i = 0; get_entry(dir, i, &cx, &cy, &Bits); i++ )
{
if(abs(Width - cx) == iXDiff && abs(Height - cy) == iYDiff)
{
iTempColorDiff = abs(ColorBits - Bits);
if(iColorDiff > iTempColorDiff)
{
BestEntry = i;
BestBits = Bits;
iColorDiff = iTempColorDiff;
}
}
}
TRACE("Best Cursor: ResId: %d, bits : %d\n", BestEntry, BestBits);
return BestEntry;
}
static BOOL
CURSORICON_GetResIconEntry(LPVOID dir,
int n,
int *Width,
int *Height,
int *Bits)
{
GRPCURSORICONDIR *ResDir = dir;
ICONRESDIR *Icon;
if (ResDir->idCount <= n)
return FALSE;
Icon = &ResDir->idEntries[n].ResInfo.icon;
*Width = Icon->bWidth;
*Height = Icon->bHeight;
*Bits = ResDir->idEntries[n].wBitCount;
return TRUE;
}
static BOOL
CURSORICON_GetResCursorEntry(LPVOID dir,
int n,
int *Width,
int *Height,
int *Bits)
{
GRPCURSORICONDIR *ResDir = dir;
CURSORRESDIR *Cursor;
if (ResDir->idCount <= n)
return FALSE;
Cursor = &ResDir->idEntries[n].ResInfo.cursor;
*Width = Cursor->wWidth;
*Height = Cursor->wHeight;
*Bits = ResDir->idEntries[n].wBitCount;
return TRUE;
}
static GRPCURSORICONDIRENTRY *
CURSORICON_FindBestIconRes(GRPCURSORICONDIR * dir,
int Width,
int Height,
int ColorBits)
{
int n;
n = CURSORICON_FindBestIcon(dir,
CURSORICON_GetResIconEntry,
Width,
Height,
ColorBits);
if (n < 0)
return NULL;
return &dir->idEntries[n];
}
static GRPCURSORICONDIRENTRY *
CURSORICON_FindBestCursorRes(GRPCURSORICONDIR *dir,
int Width,
int Height,
int ColorBits)
{
int n;
n = CURSORICON_FindBestCursor(dir,
CURSORICON_GetResCursorEntry,
Width,
Height,
ColorBits);
if (n < 0)
return NULL;
return &dir->idEntries[n];
}
INT WINAPI
LookupIconIdFromDirectoryEx(PBYTE xdir,
BOOL bIcon,
INT width,
INT height,
UINT cFlag)
{
GRPCURSORICONDIR *dir = (GRPCURSORICONDIR*)xdir;
UINT retVal = 0;
GetConnected();
if(dir && !dir->idReserved && (IMAGE_ICON == dir->idType || IMAGE_CURSOR == dir->idType))
{
GRPCURSORICONDIRENTRY *entry = NULL;
int ColorBits;
if (cFlag & LR_MONOCHROME)
{
ColorBits = 1;
}
else if (cFlag & LR_VGACOLOR)
{
ColorBits = 4;
}
else
{
ColorBits = gpsi->BitsPixel;
}
if(bIcon)
entry = CURSORICON_FindBestIconRes(dir, width, height, ColorBits);
else
entry = CURSORICON_FindBestCursorRes(dir, width, height, 1);
if (entry)
retVal = entry->nID;
}
else
WARN("%s() : Invalid resource directory\n", __FUNCTION__);
return retVal;
}
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