3 * Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * PROJECT: ReactOS user32.dll
22 * FILE: lib/user32/windows/icon.c
24 * PROGRAMMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
26 * 09-05-2001 CSH Created
29 /* INCLUDES ******************************************************************/
36 /* FUNCTIONS *****************************************************************/
39 ICON_CreateIconFromData(HDC hDC
, PVOID ImageData
, ICONIMAGE
* IconImage
, int cxDesired
, int cyDesired
, int xHotspot
, int yHotspot
)
41 BYTE BitmapInfoBuffer
[sizeof(BITMAPINFOHEADER
) + 2 * sizeof(RGBQUAD
)];
42 BITMAPINFO
*bwBIH
= (BITMAPINFO
*)BitmapInfoBuffer
;
45 IconInfo
.fIcon
= TRUE
;
46 IconInfo
.xHotspot
= xHotspot
;
47 IconInfo
.yHotspot
= yHotspot
;
49 /* Load the XOR bitmap */
50 IconInfo
.hbmColor
= CreateDIBitmap(hDC
, &IconImage
->icHeader
, CBM_INIT
,
51 ImageData
, (BITMAPINFO
*)IconImage
,
54 /* Make ImageData point to the start of the AND image data. */
55 ImageData
= ((PBYTE
)ImageData
) + (((IconImage
->icHeader
.biWidth
*
56 IconImage
->icHeader
.biBitCount
+ 31) & ~31) >> 3) *
57 (IconImage
->icHeader
.biHeight
);
59 /* Create a BITMAPINFO header for the monocrome part of the icon. */
60 bwBIH
->bmiHeader
.biBitCount
= 1;
61 bwBIH
->bmiHeader
.biWidth
= IconImage
->icHeader
.biWidth
;
62 bwBIH
->bmiHeader
.biHeight
= IconImage
->icHeader
.biHeight
;
63 bwBIH
->bmiHeader
.biSize
= sizeof(BITMAPINFOHEADER
);
64 bwBIH
->bmiHeader
.biPlanes
= 1;
65 bwBIH
->bmiHeader
.biSizeImage
= 0;
66 bwBIH
->bmiHeader
.biCompression
= BI_RGB
;
67 bwBIH
->bmiHeader
.biClrImportant
= 0;
68 bwBIH
->bmiHeader
.biClrUsed
= 0;
69 bwBIH
->bmiHeader
.biXPelsPerMeter
= 0;
70 bwBIH
->bmiHeader
.biYPelsPerMeter
= 0;
72 bwBIH
->bmiColors
[0].rgbBlue
= 0;
73 bwBIH
->bmiColors
[0].rgbGreen
= 0;
74 bwBIH
->bmiColors
[0].rgbRed
= 0;
75 bwBIH
->bmiColors
[0].rgbReserved
= 0;
77 bwBIH
->bmiColors
[1].rgbBlue
= 0xff;
78 bwBIH
->bmiColors
[1].rgbGreen
= 0xff;
79 bwBIH
->bmiColors
[1].rgbRed
= 0xff;
80 bwBIH
->bmiColors
[1].rgbReserved
= 0;
82 /* Load the AND bitmap. */
83 IconInfo
.hbmMask
= CreateDIBitmap(hDC
, &bwBIH
->bmiHeader
, 0,
84 ImageData
, bwBIH
, DIB_RGB_COLORS
);
86 SetDIBits(hDC
, IconInfo
.hbmMask
, 0, IconImage
->icHeader
.biHeight
,
87 ImageData
, bwBIH
, DIB_RGB_COLORS
);
89 /* Create the icon based on everything we have so far */
90 return NtUserCreateCursorIconHandle(&IconInfo
, FALSE
);
94 ICON_CreateCursorFromData(HDC hDC
, PVOID ImageData
, ICONIMAGE
* IconImage
, int cxDesired
, int cyDesired
, int xHotspot
, int yHotspot
)
96 /* FIXME - color cursors */
97 BYTE BitmapInfoBuffer
[sizeof(BITMAPINFOHEADER
) + 2 * sizeof(RGBQUAD
)];
98 BITMAPINFO
*bwBIH
= (BITMAPINFO
*)BitmapInfoBuffer
;
100 PVOID XORImageData
= ImageData
;
102 IconInfo
.fIcon
= FALSE
;
103 IconInfo
.xHotspot
= xHotspot
;
104 IconInfo
.yHotspot
= yHotspot
;
106 /* Create a BITMAPINFO header for the monocrome part of the icon */
107 bwBIH
->bmiHeader
.biBitCount
= 1;
108 bwBIH
->bmiHeader
.biWidth
= IconImage
->icHeader
.biWidth
;
109 bwBIH
->bmiHeader
.biHeight
= IconImage
->icHeader
.biHeight
;
110 bwBIH
->bmiHeader
.biSize
= sizeof(BITMAPINFOHEADER
);
111 bwBIH
->bmiHeader
.biPlanes
= 1;
112 bwBIH
->bmiHeader
.biSizeImage
= 0;
113 bwBIH
->bmiHeader
.biCompression
= BI_RGB
;
114 bwBIH
->bmiHeader
.biClrImportant
= 0;
115 bwBIH
->bmiHeader
.biClrUsed
= 0;
116 bwBIH
->bmiHeader
.biXPelsPerMeter
= 0;
117 bwBIH
->bmiHeader
.biYPelsPerMeter
= 0;
119 bwBIH
->bmiColors
[0].rgbBlue
= 0;
120 bwBIH
->bmiColors
[0].rgbGreen
= 0;
121 bwBIH
->bmiColors
[0].rgbRed
= 0;
122 bwBIH
->bmiColors
[0].rgbReserved
= 0;
124 bwBIH
->bmiColors
[1].rgbBlue
= 0xff;
125 bwBIH
->bmiColors
[1].rgbGreen
= 0xff;
126 bwBIH
->bmiColors
[1].rgbRed
= 0xff;
127 bwBIH
->bmiColors
[1].rgbReserved
= 0;
129 /* Load the AND bitmap */
130 IconInfo
.hbmMask
= CreateDIBitmap(hDC
, &bwBIH
->bmiHeader
, 0,
131 XORImageData
, bwBIH
, DIB_RGB_COLORS
);
132 if (IconInfo
.hbmMask
)
134 SetDIBits(hDC
, IconInfo
.hbmMask
, 0, IconImage
->icHeader
.biHeight
,
135 XORImageData
, bwBIH
, DIB_RGB_COLORS
);
138 IconInfo
.hbmColor
= (HBITMAP
)0;
140 /* Create the icon based on everything we have so far */
141 return NtUserCreateCursorIconHandle(&IconInfo
, FALSE
);
155 if(NtUserGetCursorIconInfo((HANDLE
)hIcon
, &IconInfo
))
157 return NtUserCreateCursorIconHandle(&IconInfo
, FALSE
);
179 IconInfo
.fIcon
= TRUE
;
180 IconInfo
.xHotspot
= nWidth
/ 2;
181 IconInfo
.yHotspot
= nHeight
/ 2;
182 IconInfo
.hbmMask
= CreateBitmap(nWidth
, nHeight
, 1, 1, ANDbits
);
183 if(!IconInfo
.hbmMask
)
187 IconInfo
.hbmColor
= CreateBitmap(nWidth
, nHeight
, cPlanes
, cBitsPixel
, XORbits
);
188 if(!IconInfo
.hbmColor
)
190 DeleteObject(IconInfo
.hbmMask
);
194 return NtUserCreateCursorIconHandle(&IconInfo
, FALSE
);
203 CreateIconFromResource(
209 return CreateIconFromResourceEx(presbits
, dwResSize
, fIcon
, dwVer
, 0, 0, 0);
218 CreateIconFromResourceEx(
227 ICONIMAGE
* SafeIconImage
;
237 FIXME - does win support LR_SHARED? According to msdn it does but we don't
238 have useful information to identify the icon
239 if (uFlags & LR_SHARED)
241 DbgPrint("FIXME: need LR_SHARED support in CreateIconFromResourceEx()\n");
245 DPRINT("dwVersion, cxDesired, cyDesired are all ignored in this implementation!\n");
249 wXHotspot
= *(WORD
*)pbIconBits
;
250 pbIconBits
+=sizeof(WORD
);
251 wYHotspot
= *(WORD
*)pbIconBits
;
252 pbIconBits
+=sizeof(WORD
);
253 cbIconBits
-=2*sizeof(WORD
);
257 wXHotspot
= cxDesired
/ 2;
258 wYHotspot
= cyDesired
/ 2;
261 /* get an safe copy of the icon data */
262 SafeIconImage
= RtlAllocateHeap(GetProcessHeap(), 0, cbIconBits
);
263 if (SafeIconImage
== NULL
)
267 memcpy(SafeIconImage
, pbIconBits
, cbIconBits
);
269 /* take into acount the origonal height was for both the AND and XOR images */
271 SafeIconImage
->icHeader
.biHeight
/= 2;
273 if (SafeIconImage
->icHeader
.biSize
== sizeof(BITMAPCOREHEADER
))
275 BITMAPCOREHEADER
* Core
= (BITMAPCOREHEADER
*)SafeIconImage
;
276 ColourCount
= (Core
->bcBitCount
<= 8) ? (1 << Core
->bcBitCount
) : 0;
277 HeaderSize
= sizeof(BITMAPCOREHEADER
) + ColourCount
* sizeof(RGBTRIPLE
);
281 ColourCount
= (SafeIconImage
->icHeader
.biBitCount
<= 8) ?
282 (1 << SafeIconImage
->icHeader
.biBitCount
) : 0;
283 HeaderSize
= sizeof(BITMAPINFOHEADER
) + ColourCount
* sizeof(RGBQUAD
);
286 /* make data point to the start of the XOR image data */
287 Data
= (PBYTE
)SafeIconImage
+ HeaderSize
;
289 /* get a handle to the screen dc, the icon we create is going to be compatable with this */
290 hScreenDc
= CreateCompatibleDC(NULL
);
291 if (hScreenDc
== NULL
)
293 RtlFreeHeap(GetProcessHeap(), 0, SafeIconImage
);
298 hIcon
= ICON_CreateIconFromData(hScreenDc
, Data
, SafeIconImage
, cxDesired
, cyDesired
, wXHotspot
, wYHotspot
);
300 hIcon
= ICON_CreateCursorFromData(hScreenDc
, Data
, SafeIconImage
, cxDesired
, cyDesired
, wXHotspot
, wYHotspot
);
301 RtlFreeHeap(GetProcessHeap(), 0, SafeIconImage
);
313 CreateIconIndirect(PICONINFO IconInfo
)
320 SetLastError(ERROR_INVALID_PARAMETER
);
324 if(!GetObjectW(IconInfo
->hbmMask
, sizeof(BITMAP
), &MaskBitmap
))
328 /* FIXME - does there really *have* to be a color bitmap? monochrome cursors don't have one */
329 if(IconInfo
->hbmColor
&& !GetObjectW(IconInfo
->hbmColor
, sizeof(BITMAP
), &ColorBitmap
))
334 /* FIXME - i doubt this is right (monochrome cursors */
335 /*if(ColorBitmap.bmWidth != MaskBitmap.bmWidth ||
336 ColorBitmap.bmHeight != MaskBitmap.bmWidth)
338 SetLastError(ERROR_INVALID_PARAMETER);
342 return (HICON
)NtUserCreateCursorIconHandle(IconInfo
, TRUE
);
354 return (BOOL
)NtUserDestroyCursorIcon((HANDLE
)hIcon
, 0);
369 return DrawIconEx(hDC
, X
, Y
, hIcon
, 0, 0, 0, NULL
, DI_NORMAL
| DI_DEFAULTSIZE
);
385 HBRUSH hbrFlickerFreeDraw
,
388 return (BOOL
)NtUserDrawIconEx(hdc
, xLeft
, yTop
, hIcon
, cxWidth
, cyWidth
,
389 istepIfAniCur
, hbrFlickerFreeDraw
, diFlags
,
403 /* FIXME - copy bitmaps */
404 return (BOOL
)NtUserGetCursorIconInfo((HANDLE
)hIcon
, IconInfo
);
417 return(LoadImageA(hInstance
, lpIconName
, IMAGE_ICON
, 0, 0, LR_SHARED
| LR_DEFAULTSIZE
));
430 return(LoadImageW(hInstance
, lpIconName
, IMAGE_ICON
, 0, 0, LR_SHARED
| LR_DEFAULTSIZE
));
439 LookupIconIdFromDirectory(
443 return LookupIconIdFromDirectoryEx( presbits
, fIcon
,
444 fIcon
? GetSystemMetrics(SM_CXICON
) : GetSystemMetrics(SM_CXCURSOR
),
445 fIcon
? GetSystemMetrics(SM_CYICON
) : GetSystemMetrics(SM_CYCURSOR
), LR_DEFAULTCOLOR
);
448 /* Ported from WINE20030408 */
449 GRPCURSORICONDIRENTRY
*
450 CURSORICON_FindBestCursor( GRPCURSORICONDIR
*dir
, int width
, int height
, int colors
)
453 GRPCURSORICONDIRENTRY
*entry
, *bestEntry
= NULL
;
454 UINT iTotalDiff
, iXDiff
=0, iYDiff
=0, iColorDiff
;
455 UINT iTempXDiff
, iTempYDiff
, iTempColorDiff
;
457 if (dir
->idCount
< 1)
459 DPRINT("Empty directory!\n");
462 if (dir
->idCount
== 1)
463 return &dir
->idEntries
[0]; /* No choice... */
466 iTotalDiff
= 0xFFFFFFFF;
467 iColorDiff
= 0xFFFFFFFF;
468 for (i
= 0, entry
= &dir
->idEntries
[0]; i
< dir
->idCount
; i
++,entry
++)
470 iTempXDiff
= abs(width
- entry
->ResInfo
.icon
.bWidth
);
471 iTempYDiff
= abs(height
- entry
->ResInfo
.icon
.bHeight
);
473 if(iTotalDiff
> (iTempXDiff
+ iTempYDiff
))
477 iTotalDiff
= iXDiff
+ iYDiff
;
481 /* Find Best Colors for Best Fit */
482 for (i
= 0, entry
= &dir
->idEntries
[0]; i
< dir
->idCount
; i
++,entry
++)
484 if(abs(width
- entry
->ResInfo
.icon
.bWidth
) == (int) iXDiff
&&
485 abs(height
- entry
->ResInfo
.icon
.bHeight
) == (int) iYDiff
)
487 iTempColorDiff
= abs(colors
- entry
->ResInfo
.icon
.bColorCount
);
489 if(iColorDiff
> iTempColorDiff
)
492 iColorDiff
= iTempColorDiff
;
500 /* Ported from WINE20030408 */
501 GRPCURSORICONDIRENTRY
*
502 CURSORICON_FindBestIcon( GRPCURSORICONDIR
*dir
, int width
, int height
, int colorbits
)
505 GRPCURSORICONDIRENTRY
*entry
, *bestEntry
= NULL
;
506 UINT iTotalDiff
, iXDiff
=0, iYDiff
=0, iColorDiff
;
507 UINT iTempXDiff
, iTempYDiff
, iTempColorDiff
;
509 if (dir
->idCount
< 1)
511 DPRINT("Empty directory!\n");
514 if (dir
->idCount
== 1)
515 return &dir
->idEntries
[0]; /* No choice... */
518 iTotalDiff
= 0xFFFFFFFF;
519 iColorDiff
= 0xFFFFFFFF;
520 for (i
= 0, entry
= &dir
->idEntries
[0]; i
< dir
->idCount
; i
++,entry
++)
522 iTempXDiff
= abs(width
- entry
->ResInfo
.icon
.bWidth
);
524 iTempYDiff
= abs(height
- entry
->ResInfo
.icon
.bHeight
);
526 if(iTotalDiff
> (iTempXDiff
+ iTempYDiff
))
530 iTotalDiff
= iXDiff
+ iYDiff
;
534 /* Find Best Colors for Best Fit */
535 for (i
= 0, entry
= &dir
->idEntries
[0]; i
< dir
->idCount
; i
++,entry
++)
537 if(abs(width
- entry
->ResInfo
.icon
.bWidth
) == (int) iXDiff
&&
538 abs(height
- entry
->ResInfo
.icon
.bHeight
) == (int) iYDiff
)
540 iTempColorDiff
= abs(colorbits
- entry
->wBitCount
);
541 if(iColorDiff
> iTempColorDiff
)
544 iColorDiff
= iTempColorDiff
;
552 /* Ported from WINE20030408 */
557 LookupIconIdFromDirectoryEx(
564 GRPCURSORICONDIR
*dir
= (GRPCURSORICONDIR
*)presbits
;
567 if (dir
&& !dir
->idReserved
&& (IMAGE_ICON
== dir
->idType
|| IMAGE_CURSOR
== dir
->idType
))
569 GRPCURSORICONDIRENTRY
*entry
;
573 hdc
= CreateICW(NULL
, NULL
, NULL
, NULL
);
574 if (Flags
& LR_MONOCHROME
)
580 ColorBits
= GetDeviceCaps(hdc
, BITSPIXEL
);
586 entry
= CURSORICON_FindBestIcon( dir
, cxDesired
, cyDesired
, ColorBits
);
593 DbgPrint("invalid resource directory\n");