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msvcp90: Added _Locinfo::_Gettnames implementation.
[wine/multimedia.git] / dlls / comctl32 / imagelist.c
blobdb591043b0c94c4fe782b74bb354195d65b3207e
1 /*
2 * ImageList implementation
3 *
4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Jason Mawdsley
6 * Copyright 2001, 2004 Michael Stefaniuc
7 * Copyright 2001 Charles Loep for CodeWeavers
8 * Copyright 2002 Dimitrie O. Paun
9 * Copyright 2009 Owen Rudge for CodeWeavers
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 *
25 * NOTE
26 *
27 * This code was audited for completeness against the documented features
28 * of Comctl32.dll version 6.0 on Sep. 12, 2002, by Dimitrie O. Paun.
29 *
30 * Unless otherwise noted, we believe this code to be complete, as per
31 * the specification mentioned above.
32 * If you discover missing features, or bugs, please note them below.
33 *
34 * TODO:
35 * - Add support for ILD_PRESERVEALPHA, ILD_SCALE, ILD_DPISCALE
36 * - Add support for ILS_GLOW, ILS_SHADOW, ILS_SATURATE
37 * - Thread-safe locking
38 */
39
40 #include <stdarg.h>
41 #include <stdlib.h>
42 #include <string.h>
43
44 #define COBJMACROS
45
46 #include "winerror.h"
47 #include "windef.h"
48 #include "winbase.h"
49 #include "objbase.h"
50 #include "wingdi.h"
51 #include "winuser.h"
52 #include "commctrl.h"
53 #include "comctl32.h"
54 #include "commoncontrols.h"
55 #include "wine/debug.h"
56 #include "wine/exception.h"
57
58 WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
59
60 #define MAX_OVERLAYIMAGE 15
61
62 struct _IMAGELIST
63 {
64 const struct IImageListVtbl *lpVtbl; /* 00: IImageList vtable */
65
66 INT cCurImage; /* 04: ImageCount */
67 INT cMaxImage; /* 08: maximages */
68 INT cGrow; /* 0C: cGrow */
69 INT cx; /* 10: cx */
70 INT cy; /* 14: cy */
71 DWORD x4;
72 UINT flags; /* 1C: flags */
73 COLORREF clrFg; /* 20: foreground color */
74 COLORREF clrBk; /* 24: background color */
75
76
77 HBITMAP hbmImage; /* 28: images Bitmap */
78 HBITMAP hbmMask; /* 2C: masks Bitmap */
79 HDC hdcImage; /* 30: images MemDC */
80 HDC hdcMask; /* 34: masks MemDC */
81 INT nOvlIdx[MAX_OVERLAYIMAGE]; /* 38: overlay images index */
82
83 /* not yet found out */
84 HBRUSH hbrBlend25;
85 HBRUSH hbrBlend50;
86 INT cInitial;
87 UINT uBitsPixel;
88 char *has_alpha;
89
90 LONG ref; /* reference count */
91 };
92
93 #define IMAGELIST_MAGIC 0x53414D58
94
95 /* Header used by ImageList_Read() and ImageList_Write() */
96 #include "pshpack2.h"
97 typedef struct _ILHEAD
98 {
99 USHORT usMagic;
100 USHORT usVersion;
101 WORD cCurImage;
102 WORD cMaxImage;
103 WORD cGrow;
104 WORD cx;
105 WORD cy;
106 COLORREF bkcolor;
107 WORD flags;
108 SHORT ovls[4];
109 } ILHEAD;
110 #include "poppack.h"
111
112 /* internal image list data used for Drag & Drop operations */
113 typedef struct
114 {
115 HWND hwnd;
116 HIMAGELIST himl;
117 /* position of the drag image relative to the window */
118 INT x;
119 INT y;
120 /* offset of the hotspot relative to the origin of the image */
121 INT dxHotspot;
122 INT dyHotspot;
123 /* is the drag image visible */
124 BOOL bShow;
125 /* saved background */
126 HBITMAP hbmBg;
127 } INTERNALDRAG;
128
129 static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0 };
130
131 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count);
132 static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv);
133 static inline BOOL is_valid(HIMAGELIST himl);
134
135 /*
136 * An imagelist with N images is tiled like this:
137 *
138 * N/4 ->
139 *
140 * 4 048C..
141 * 159D..
142 * | 26AE.N
143 * V 37BF.
144 */
145
146 #define TILE_COUNT 4
147
148 static inline UINT imagelist_height( UINT count )
149 {
150 return ((count + TILE_COUNT - 1)/TILE_COUNT);
151 }
152
153 static inline void imagelist_point_from_index( HIMAGELIST himl, UINT index, LPPOINT pt )
154 {
155 pt->x = (index%TILE_COUNT) * himl->cx;
156 pt->y = (index/TILE_COUNT) * himl->cy;
157 }
158
159 static inline void imagelist_get_bitmap_size( HIMAGELIST himl, UINT count, SIZE *sz )
160 {
161 sz->cx = himl->cx * TILE_COUNT;
162 sz->cy = imagelist_height( count ) * himl->cy;
163 }
164
165 static inline int get_dib_stride( int width, int bpp )
166 {
167 return ((width * bpp + 31) >> 3) & ~3;
168 }
169
170 static inline int get_dib_image_size( const BITMAPINFO *info )
171 {
172 return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
173 * abs( info->bmiHeader.biHeight );
174 }
175
176 /*
177 * imagelist_copy_images()
178 *
179 * Copies a block of count images from offset src in the list to offset dest.
180 * Images are copied a row at at time. Assumes hdcSrc and hdcDest are different.
181 */
182 static inline void imagelist_copy_images( HIMAGELIST himl, HDC hdcSrc, HDC hdcDest,
183 UINT src, UINT count, UINT dest )
184 {
185 POINT ptSrc, ptDest;
186 SIZE sz;
187 UINT i;
188
189 for ( i=0; i<TILE_COUNT; i++ )
190 {
191 imagelist_point_from_index( himl, src+i, &ptSrc );
192 imagelist_point_from_index( himl, dest+i, &ptDest );
193 sz.cx = himl->cx;
194 sz.cy = himl->cy * imagelist_height( count - i );
195
196 BitBlt( hdcDest, ptDest.x, ptDest.y, sz.cx, sz.cy,
197 hdcSrc, ptSrc.x, ptSrc.y, SRCCOPY );
198 }
199 }
200
201 static void add_dib_bits( HIMAGELIST himl, int pos, int count, int width, int height,
202 BITMAPINFO *info, BITMAPINFO *mask_info, DWORD *bits, BYTE *mask_bits )
203 {
204 int i, j, n;
205 POINT pt;
206 int stride = info->bmiHeader.biWidth;
207 int mask_stride = (info->bmiHeader.biWidth + 31) / 32 * 4;
208
209 for (n = 0; n < count; n++)
210 {
211 int has_alpha = 0;
212
213 imagelist_point_from_index( himl, pos + n, &pt );
214
215 /* check if bitmap has an alpha channel */
216 for (i = 0; i < height && !has_alpha; i++)
217 for (j = n * width; j < (n + 1) * width; j++)
218 if ((has_alpha = ((bits[i * stride + j] & 0xff000000) != 0))) break;
219
220 if (!has_alpha) /* generate alpha channel from the mask */
221 {
222 for (i = 0; i < height; i++)
223 for (j = n * width; j < (n + 1) * width; j++)
224 if (!mask_info || !((mask_bits[i * mask_stride + j / 8] << (j % 8)) & 0x80))
225 bits[i * stride + j] |= 0xff000000;
226 else
227 bits[i * stride + j] = 0;
228 }
229 else
230 {
231 himl->has_alpha[pos + n] = 1;
232
233 if (mask_info && himl->hbmMask) /* generate the mask from the alpha channel */
234 {
235 for (i = 0; i < height; i++)
236 for (j = n * width; j < (n + 1) * width; j++)
237 if ((bits[i * stride + j] >> 24) > 25) /* more than 10% alpha */
238 mask_bits[i * mask_stride + j / 8] &= ~(0x80 >> (j % 8));
239 else
240 mask_bits[i * mask_stride + j / 8] |= 0x80 >> (j % 8);
241 }
242 }
243 StretchDIBits( himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
244 n * width, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
245 if (mask_info)
246 StretchDIBits( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
247 n * width, 0, width, height, mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY );
248 }
249 }
250
251 /* add images with an alpha channel when the image list is 32 bpp */
252 static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
253 int width, int height, HBITMAP hbmImage, HBITMAP hbmMask )
254 {
255 BOOL ret = FALSE;
256 BITMAP bm;
257 BITMAPINFO *info, *mask_info = NULL;
258 DWORD *bits = NULL;
259 BYTE *mask_bits = NULL;
260 DWORD mask_width;
261
262 if (!GetObjectW( hbmImage, sizeof(bm), &bm )) return FALSE;
263
264 /* if either the imagelist or the source bitmap don't have an alpha channel, bail out now */
265 if (!himl->has_alpha) return FALSE;
266 if (bm.bmBitsPixel != 32) return FALSE;
267
268 SelectObject( hdc, hbmImage );
269 mask_width = (bm.bmWidth + 31) / 32 * 4;
270
271 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
272 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
273 info->bmiHeader.biWidth = bm.bmWidth;
274 info->bmiHeader.biHeight = -height;
275 info->bmiHeader.biPlanes = 1;
276 info->bmiHeader.biBitCount = 32;
277 info->bmiHeader.biCompression = BI_RGB;
278 info->bmiHeader.biSizeImage = bm.bmWidth * height * 4;
279 info->bmiHeader.biXPelsPerMeter = 0;
280 info->bmiHeader.biYPelsPerMeter = 0;
281 info->bmiHeader.biClrUsed = 0;
282 info->bmiHeader.biClrImportant = 0;
283 if (!(bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
284 if (!GetDIBits( hdc, hbmImage, 0, height, bits, info, DIB_RGB_COLORS )) goto done;
285
286 if (hbmMask)
287 {
288 if (!(mask_info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[2] ))))
289 goto done;
290 mask_info->bmiHeader = info->bmiHeader;
291 mask_info->bmiHeader.biBitCount = 1;
292 mask_info->bmiHeader.biSizeImage = mask_width * height;
293 if (!(mask_bits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage )))
294 goto done;
295 if (!GetDIBits( hdc, hbmMask, 0, height, mask_bits, mask_info, DIB_RGB_COLORS )) goto done;
296 }
297
298 add_dib_bits( himl, pos, count, width, height, info, mask_info, bits, mask_bits );
299 ret = TRUE;
300
301 done:
302 HeapFree( GetProcessHeap(), 0, info );
303 HeapFree( GetProcessHeap(), 0, mask_info );
304 HeapFree( GetProcessHeap(), 0, bits );
305 HeapFree( GetProcessHeap(), 0, mask_bits );
306 return ret;
307 }
308
309 /*************************************************************************
310 * IMAGELIST_InternalExpandBitmaps [Internal]
311 *
312 * Expands the bitmaps of an image list by the given number of images.
313 *
314 * PARAMS
315 * himl [I] handle to image list
316 * nImageCount [I] number of images to add
317 *
318 * RETURNS
319 * nothing
320 *
321 * NOTES
322 * This function CANNOT be used to reduce the number of images.
323 */
324 static void
325 IMAGELIST_InternalExpandBitmaps(HIMAGELIST himl, INT nImageCount)
326 {
327 HDC hdcBitmap;
328 HBITMAP hbmNewBitmap, hbmNull;
329 INT nNewCount;
330 SIZE sz;
331
332 TRACE("%p has allocated %d, max %d, grow %d images\n", himl, himl->cCurImage, himl->cMaxImage, himl->cGrow);
333
334 if (himl->cCurImage + nImageCount < himl->cMaxImage)
335 return;
336
337 nNewCount = himl->cMaxImage + max(nImageCount, himl->cGrow) + 1;
338
339 imagelist_get_bitmap_size(himl, nNewCount, &sz);
340
341 TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, sz.cx, sz.cy, nNewCount);
342 hdcBitmap = CreateCompatibleDC (0);
343
344 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
345
346 if (hbmNewBitmap == 0)
347 ERR("creating new image bitmap (x=%d y=%d)!\n", sz.cx, sz.cy);
348
349 if (himl->cCurImage)
350 {
351 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
352 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
353 himl->hdcImage, 0, 0, SRCCOPY);
354 SelectObject (hdcBitmap, hbmNull);
355 }
356 SelectObject (himl->hdcImage, hbmNewBitmap);
357 DeleteObject (himl->hbmImage);
358 himl->hbmImage = hbmNewBitmap;
359
360 if (himl->flags & ILC_MASK)
361 {
362 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
363
364 if (hbmNewBitmap == 0)
365 ERR("creating new mask bitmap!\n");
366
367 if(himl->cCurImage)
368 {
369 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
370 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
371 himl->hdcMask, 0, 0, SRCCOPY);
372 SelectObject (hdcBitmap, hbmNull);
373 }
374 SelectObject (himl->hdcMask, hbmNewBitmap);
375 DeleteObject (himl->hbmMask);
376 himl->hbmMask = hbmNewBitmap;
377 }
378
379 if (himl->has_alpha)
380 {
381 char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
382 if (new_alpha) himl->has_alpha = new_alpha;
383 else
384 {
385 HeapFree( GetProcessHeap(), 0, himl->has_alpha );
386 himl->has_alpha = NULL;
387 }
388 }
389
390 himl->cMaxImage = nNewCount;
391
392 DeleteDC (hdcBitmap);
393 }
394
395
396 /*************************************************************************
397 * ImageList_Add [COMCTL32.@]
398 *
399 * Add an image or images to an image list.
400 *
401 * PARAMS
402 * himl [I] handle to image list
403 * hbmImage [I] handle to image bitmap
404 * hbmMask [I] handle to mask bitmap
405 *
406 * RETURNS
407 * Success: Index of the first new image.
408 * Failure: -1
409 */
410
411 INT WINAPI
412 ImageList_Add (HIMAGELIST himl, HBITMAP hbmImage, HBITMAP hbmMask)
413 {
414 HDC hdcBitmap, hdcTemp = 0;
415 INT nFirstIndex, nImageCount, i;
416 BITMAP bmp;
417 POINT pt;
418
419 TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
420 if (!is_valid(himl))
421 return -1;
422
423 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
424 return -1;
425
426 TRACE("himl %p, cCurImage %d, cMaxImage %d, cGrow %d, cx %d, cy %d\n",
427 himl, himl->cCurImage, himl->cMaxImage, himl->cGrow, himl->cx, himl->cy);
428
429 nImageCount = bmp.bmWidth / himl->cx;
430
431 TRACE("%p has %d images (%d x %d)\n", hbmImage, nImageCount, bmp.bmWidth, bmp.bmHeight);
432
433 IMAGELIST_InternalExpandBitmaps(himl, nImageCount);
434
435 hdcBitmap = CreateCompatibleDC(0);
436
437 SelectObject(hdcBitmap, hbmImage);
438
439 if (add_with_alpha( himl, hdcBitmap, himl->cCurImage, nImageCount,
440 himl->cx, min( himl->cy, bmp.bmHeight), hbmImage, hbmMask ))
441 goto done;
442
443 if (himl->hbmMask)
444 {
445 hdcTemp = CreateCompatibleDC(0);
446 SelectObject(hdcTemp, hbmMask);
447 }
448
449 for (i=0; i<nImageCount; i++)
450 {
451 imagelist_point_from_index( himl, himl->cCurImage + i, &pt );
452
453 /* Copy result to the imagelist
454 */
455 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
456 hdcBitmap, i*himl->cx, 0, SRCCOPY );
457
458 if (!himl->hbmMask)
459 continue;
460
461 BitBlt( himl->hdcMask, pt.x, pt.y, himl->cx, bmp.bmHeight,
462 hdcTemp, i*himl->cx, 0, SRCCOPY );
463
464 /* Remove the background from the image
465 */
466 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
467 himl->hdcMask, pt.x, pt.y, 0x220326 ); /* NOTSRCAND */
468 }
469 if (hdcTemp) DeleteDC(hdcTemp);
470
471 done:
472 DeleteDC(hdcBitmap);
473
474 nFirstIndex = himl->cCurImage;
475 himl->cCurImage += nImageCount;
476
477 return nFirstIndex;
478 }
479
480
481 /*************************************************************************
482 * ImageList_AddIcon [COMCTL32.@]
483 *
484 * Adds an icon to an image list.
485 *
486 * PARAMS
487 * himl [I] handle to image list
488 * hIcon [I] handle to icon
489 *
490 * RETURNS
491 * Success: index of the new image
492 * Failure: -1
493 */
494 #undef ImageList_AddIcon
495 INT WINAPI ImageList_AddIcon (HIMAGELIST himl, HICON hIcon)
496 {
497 return ImageList_ReplaceIcon (himl, -1, hIcon);
498 }
499
500
501 /*************************************************************************
502 * ImageList_AddMasked [COMCTL32.@]
503 *
504 * Adds an image or images to an image list and creates a mask from the
505 * specified bitmap using the mask color.
506 *
507 * PARAMS
508 * himl [I] handle to image list.
509 * hBitmap [I] handle to bitmap
510 * clrMask [I] mask color.
511 *
512 * RETURNS
513 * Success: Index of the first new image.
514 * Failure: -1
515 */
516
517 INT WINAPI
518 ImageList_AddMasked (HIMAGELIST himl, HBITMAP hBitmap, COLORREF clrMask)
519 {
520 HDC hdcMask, hdcBitmap;
521 INT ret;
522 BITMAP bmp;
523 HBITMAP hMaskBitmap;
524 COLORREF bkColor;
525
526 TRACE("himl=%p hbitmap=%p clrmask=%x\n", himl, hBitmap, clrMask);
527 if (!is_valid(himl))
528 return -1;
529
530 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bmp))
531 return -1;
532
533 hdcBitmap = CreateCompatibleDC(0);
534 SelectObject(hdcBitmap, hBitmap);
535
536 /* Create a temp Mask so we can remove the background of the Image */
537 hdcMask = CreateCompatibleDC(0);
538 hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
539 SelectObject(hdcMask, hMaskBitmap);
540
541 /* create monochrome image to the mask bitmap */
542 bkColor = (clrMask != CLR_DEFAULT) ? clrMask : GetPixel (hdcBitmap, 0, 0);
543 SetBkColor (hdcBitmap, bkColor);
544 BitBlt (hdcMask, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
545
546 SetBkColor(hdcBitmap, RGB(255,255,255));
547
548 /*
549 * Remove the background from the image
550 *
551 * WINDOWS BUG ALERT!!!!!!
552 * The statement below should not be done in common practice
553 * but this is how ImageList_AddMasked works in Windows.
554 * It overwrites the original bitmap passed, this was discovered
555 * by using the same bitmap to iterate the different styles
556 * on windows where it failed (BUT ImageList_Add is OK)
557 * This is here in case some apps rely on this bug
558 *
559 * Blt mode 0x220326 is NOTSRCAND
560 */
561 BitBlt(hdcBitmap, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcMask, 0, 0, 0x220326);
562
563 DeleteDC(hdcBitmap);
564 DeleteDC(hdcMask);
565
566 ret = ImageList_Add( himl, hBitmap, hMaskBitmap );
567
568 DeleteObject(hMaskBitmap);
569 return ret;
570 }
571
572
573 /*************************************************************************
574 * ImageList_BeginDrag [COMCTL32.@]
575 *
576 * Creates a temporary image list that contains one image. It will be used
577 * as a drag image.
578 *
579 * PARAMS
580 * himlTrack [I] handle to the source image list
581 * iTrack [I] index of the drag image in the source image list
582 * dxHotspot [I] X position of the hot spot of the drag image
583 * dyHotspot [I] Y position of the hot spot of the drag image
584 *
585 * RETURNS
586 * Success: TRUE
587 * Failure: FALSE
588 */
589
590 BOOL WINAPI
591 ImageList_BeginDrag (HIMAGELIST himlTrack, INT iTrack,
592 INT dxHotspot, INT dyHotspot)
593 {
594 INT cx, cy;
595
596 TRACE("(himlTrack=%p iTrack=%d dx=%d dy=%d)\n", himlTrack, iTrack,
597 dxHotspot, dyHotspot);
598
599 if (!is_valid(himlTrack))
600 return FALSE;
601
602 if (InternalDrag.himl)
603 ImageList_EndDrag ();
604
605 cx = himlTrack->cx;
606 cy = himlTrack->cy;
607
608 InternalDrag.himl = ImageList_Create (cx, cy, himlTrack->flags, 1, 1);
609 if (InternalDrag.himl == NULL) {
610 WARN("Error creating drag image list!\n");
611 return FALSE;
612 }
613
614 InternalDrag.dxHotspot = dxHotspot;
615 InternalDrag.dyHotspot = dyHotspot;
616
617 /* copy image */
618 BitBlt (InternalDrag.himl->hdcImage, 0, 0, cx, cy, himlTrack->hdcImage, iTrack * cx, 0, SRCCOPY);
619
620 /* copy mask */
621 BitBlt (InternalDrag.himl->hdcMask, 0, 0, cx, cy, himlTrack->hdcMask, iTrack * cx, 0, SRCCOPY);
622
623 InternalDrag.himl->cCurImage = 1;
624
625 return TRUE;
626 }
627
628
629 /*************************************************************************
630 * ImageList_Copy [COMCTL32.@]
631 *
632 * Copies an image of the source image list to an image of the
633 * destination image list. Images can be copied or swapped.
634 *
635 * PARAMS
636 * himlDst [I] handle to the destination image list
637 * iDst [I] destination image index.
638 * himlSrc [I] handle to the source image list
639 * iSrc [I] source image index
640 * uFlags [I] flags for the copy operation
641 *
642 * RETURNS
643 * Success: TRUE
644 * Failure: FALSE
645 *
646 * NOTES
647 * Copying from one image list to another is possible. The original
648 * implementation just copies or swaps within one image list.
649 * Could this feature become a bug??? ;-)
650 */
651
652 BOOL WINAPI
653 ImageList_Copy (HIMAGELIST himlDst, INT iDst, HIMAGELIST himlSrc,
654 INT iSrc, UINT uFlags)
655 {
656 POINT ptSrc, ptDst;
657
658 TRACE("himlDst=%p iDst=%d himlSrc=%p iSrc=%d\n", himlDst, iDst, himlSrc, iSrc);
659
660 if (!is_valid(himlSrc) || !is_valid(himlDst))
661 return FALSE;
662 if ((iDst < 0) || (iDst >= himlDst->cCurImage))
663 return FALSE;
664 if ((iSrc < 0) || (iSrc >= himlSrc->cCurImage))
665 return FALSE;
666
667 imagelist_point_from_index( himlDst, iDst, &ptDst );
668 imagelist_point_from_index( himlSrc, iSrc, &ptSrc );
669
670 if (uFlags & ILCF_SWAP) {
671 /* swap */
672 HDC hdcBmp;
673 HBITMAP hbmTempImage, hbmTempMask;
674
675 hdcBmp = CreateCompatibleDC (0);
676
677 /* create temporary bitmaps */
678 hbmTempImage = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
679 himlSrc->uBitsPixel, NULL);
680 hbmTempMask = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
681 1, NULL);
682
683 /* copy (and stretch) destination to temporary bitmaps.(save) */
684 /* image */
685 SelectObject (hdcBmp, hbmTempImage);
686 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
687 himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
688 SRCCOPY);
689 /* mask */
690 SelectObject (hdcBmp, hbmTempMask);
691 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
692 himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
693 SRCCOPY);
694
695 /* copy (and stretch) source to destination */
696 /* image */
697 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
698 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
699 SRCCOPY);
700 /* mask */
701 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
702 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
703 SRCCOPY);
704
705 /* copy (without stretching) temporary bitmaps to source (restore) */
706 /* mask */
707 BitBlt (himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
708 hdcBmp, 0, 0, SRCCOPY);
709
710 /* image */
711 BitBlt (himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
712 hdcBmp, 0, 0, SRCCOPY);
713 /* delete temporary bitmaps */
714 DeleteObject (hbmTempMask);
715 DeleteObject (hbmTempImage);
716 DeleteDC(hdcBmp);
717 }
718 else {
719 /* copy image */
720 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
721 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
722 SRCCOPY);
723
724 /* copy mask */
725 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
726 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
727 SRCCOPY);
728 }
729
730 return TRUE;
731 }
732
733
734 /*************************************************************************
735 * ImageList_Create [COMCTL32.@]
736 *
737 * Creates a new image list.
738 *
739 * PARAMS
740 * cx [I] image height
741 * cy [I] image width
742 * flags [I] creation flags
743 * cInitial [I] initial number of images in the image list
744 * cGrow [I] number of images by which image list grows
745 *
746 * RETURNS
747 * Success: Handle to the created image list
748 * Failure: NULL
749 */
750 HIMAGELIST WINAPI
751 ImageList_Create (INT cx, INT cy, UINT flags,
752 INT cInitial, INT cGrow)
753 {
754 HIMAGELIST himl;
755 INT nCount;
756 HBITMAP hbmTemp;
757 UINT ilc = (flags & 0xFE);
758 static const WORD aBitBlend25[] =
759 {0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
760
761 static const WORD aBitBlend50[] =
762 {0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
763
764 TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
765
766 if (cx <= 0 || cy <= 0) return NULL;
767
768 /* Create the IImageList interface for the image list */
769 if (FAILED(ImageListImpl_CreateInstance(NULL, &IID_IImageList, (void **)&himl)))
770 return NULL;
771
772 cGrow = (cGrow < 4) ? 4 : (cGrow + 3) & ~3;
773
774 himl->cx = cx;
775 himl->cy = cy;
776 himl->flags = flags;
777 himl->cMaxImage = cInitial + 1;
778 himl->cInitial = cInitial;
779 himl->cGrow = cGrow;
780 himl->clrFg = CLR_DEFAULT;
781 himl->clrBk = CLR_NONE;
782
783 /* initialize overlay mask indices */
784 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
785 himl->nOvlIdx[nCount] = -1;
786
787 /* Create Image & Mask DCs */
788 himl->hdcImage = CreateCompatibleDC (0);
789 if (!himl->hdcImage)
790 goto cleanup;
791 if (himl->flags & ILC_MASK){
792 himl->hdcMask = CreateCompatibleDC(0);
793 if (!himl->hdcMask)
794 goto cleanup;
795 }
796
797 /* Default to ILC_COLOR4 if none of the ILC_COLOR* flags are specified */
798 if (ilc == ILC_COLOR)
799 ilc = ILC_COLOR4;
800
801 if (ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32)
802 himl->uBitsPixel = ilc;
803 else
804 himl->uBitsPixel = (UINT)GetDeviceCaps (himl->hdcImage, BITSPIXEL);
805
806 if (himl->cMaxImage > 0) {
807 himl->hbmImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
808 SelectObject(himl->hdcImage, himl->hbmImage);
809 } else
810 himl->hbmImage = 0;
811
812 if ((himl->cMaxImage > 0) && (himl->flags & ILC_MASK)) {
813 SIZE sz;
814
815 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
816 himl->hbmMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
817 if (himl->hbmMask == 0) {
818 ERR("Error creating mask bitmap!\n");
819 goto cleanup;
820 }
821 SelectObject(himl->hdcMask, himl->hbmMask);
822 }
823 else
824 himl->hbmMask = 0;
825
826 if (ilc == ILC_COLOR32)
827 himl->has_alpha = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->cMaxImage );
828 else
829 himl->has_alpha = NULL;
830
831 /* create blending brushes */
832 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend25);
833 himl->hbrBlend25 = CreatePatternBrush (hbmTemp);
834 DeleteObject (hbmTemp);
835
836 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend50);
837 himl->hbrBlend50 = CreatePatternBrush (hbmTemp);
838 DeleteObject (hbmTemp);
839
840 TRACE("created imagelist %p\n", himl);
841 return himl;
842
843 cleanup:
844 ImageList_Destroy(himl);
845 return NULL;
846 }
847
848
849 /*************************************************************************
850 * ImageList_Destroy [COMCTL32.@]
851 *
852 * Destroys an image list.
853 *
854 * PARAMS
855 * himl [I] handle to image list
856 *
857 * RETURNS
858 * Success: TRUE
859 * Failure: FALSE
860 */
861
862 BOOL WINAPI
863 ImageList_Destroy (HIMAGELIST himl)
864 {
865 if (!is_valid(himl))
866 return FALSE;
867
868 IImageList_Release((IImageList *) himl);
869 return TRUE;
870 }
871
872
873 /*************************************************************************
874 * ImageList_DragEnter [COMCTL32.@]
875 *
876 * Locks window update and displays the drag image at the given position.
877 *
878 * PARAMS
879 * hwndLock [I] handle of the window that owns the drag image.
880 * x [I] X position of the drag image.
881 * y [I] Y position of the drag image.
882 *
883 * RETURNS
884 * Success: TRUE
885 * Failure: FALSE
886 *
887 * NOTES
888 * The position of the drag image is relative to the window, not
889 * the client area.
890 */
891
892 BOOL WINAPI
893 ImageList_DragEnter (HWND hwndLock, INT x, INT y)
894 {
895 TRACE("(hwnd=%p x=%d y=%d)\n", hwndLock, x, y);
896
897 if (!is_valid(InternalDrag.himl))
898 return FALSE;
899
900 if (hwndLock)
901 InternalDrag.hwnd = hwndLock;
902 else
903 InternalDrag.hwnd = GetDesktopWindow ();
904
905 InternalDrag.x = x;
906 InternalDrag.y = y;
907
908 /* draw the drag image and save the background */
909 if (!ImageList_DragShowNolock(TRUE)) {
910 return FALSE;
911 }
912
913 return TRUE;
914 }
915
916
917 /*************************************************************************
918 * ImageList_DragLeave [COMCTL32.@]
919 *
920 * Unlocks window update and hides the drag image.
921 *
922 * PARAMS
923 * hwndLock [I] handle of the window that owns the drag image.
924 *
925 * RETURNS
926 * Success: TRUE
927 * Failure: FALSE
928 */
929
930 BOOL WINAPI
931 ImageList_DragLeave (HWND hwndLock)
932 {
933 /* As we don't save drag info in the window this can lead to problems if
934 an app does not supply the same window as DragEnter */
935 /* if (hwndLock)
936 InternalDrag.hwnd = hwndLock;
937 else
938 InternalDrag.hwnd = GetDesktopWindow (); */
939 if(!hwndLock)
940 hwndLock = GetDesktopWindow();
941 if(InternalDrag.hwnd != hwndLock)
942 FIXME("DragLeave hWnd != DragEnter hWnd\n");
943
944 ImageList_DragShowNolock (FALSE);
945
946 return TRUE;
947 }
948
949
950 /*************************************************************************
951 * ImageList_InternalDragDraw [Internal]
952 *
953 * Draws the drag image.
954 *
955 * PARAMS
956 * hdc [I] device context to draw into.
957 * x [I] X position of the drag image.
958 * y [I] Y position of the drag image.
959 *
960 * RETURNS
961 * Success: TRUE
962 * Failure: FALSE
963 *
964 * NOTES
965 * The position of the drag image is relative to the window, not
966 * the client area.
967 *
968 */
969
970 static inline void
971 ImageList_InternalDragDraw (HDC hdc, INT x, INT y)
972 {
973 IMAGELISTDRAWPARAMS imldp;
974
975 ZeroMemory (&imldp, sizeof(imldp));
976 imldp.cbSize = sizeof(imldp);
977 imldp.himl = InternalDrag.himl;
978 imldp.i = 0;
979 imldp.hdcDst = hdc,
980 imldp.x = x;
981 imldp.y = y;
982 imldp.rgbBk = CLR_DEFAULT;
983 imldp.rgbFg = CLR_DEFAULT;
984 imldp.fStyle = ILD_NORMAL;
985 imldp.fState = ILS_ALPHA;
986 imldp.Frame = 192;
987 ImageList_DrawIndirect (&imldp);
988 }
989
990 /*************************************************************************
991 * ImageList_DragMove [COMCTL32.@]
992 *
993 * Moves the drag image.
994 *
995 * PARAMS
996 * x [I] X position of the drag image.
997 * y [I] Y position of the drag image.
998 *
999 * RETURNS
1000 * Success: TRUE
1001 * Failure: FALSE
1002 *
1003 * NOTES
1004 * The position of the drag image is relative to the window, not
1005 * the client area.
1006 */
1007
1008 BOOL WINAPI
1009 ImageList_DragMove (INT x, INT y)
1010 {
1011 TRACE("(x=%d y=%d)\n", x, y);
1012
1013 if (!is_valid(InternalDrag.himl))
1014 return FALSE;
1015
1016 /* draw/update the drag image */
1017 if (InternalDrag.bShow) {
1018 HDC hdcDrag;
1019 HDC hdcOffScreen;
1020 HDC hdcBg;
1021 HBITMAP hbmOffScreen;
1022 INT origNewX, origNewY;
1023 INT origOldX, origOldY;
1024 INT origRegX, origRegY;
1025 INT sizeRegX, sizeRegY;
1026
1027
1028 /* calculate the update region */
1029 origNewX = x - InternalDrag.dxHotspot;
1030 origNewY = y - InternalDrag.dyHotspot;
1031 origOldX = InternalDrag.x - InternalDrag.dxHotspot;
1032 origOldY = InternalDrag.y - InternalDrag.dyHotspot;
1033 origRegX = min(origNewX, origOldX);
1034 origRegY = min(origNewY, origOldY);
1035 sizeRegX = InternalDrag.himl->cx + abs(x - InternalDrag.x);
1036 sizeRegY = InternalDrag.himl->cy + abs(y - InternalDrag.y);
1037
1038 hdcDrag = GetDCEx(InternalDrag.hwnd, 0,
1039 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
1040 hdcOffScreen = CreateCompatibleDC(hdcDrag);
1041 hdcBg = CreateCompatibleDC(hdcDrag);
1042
1043 hbmOffScreen = CreateCompatibleBitmap(hdcDrag, sizeRegX, sizeRegY);
1044 SelectObject(hdcOffScreen, hbmOffScreen);
1045 SelectObject(hdcBg, InternalDrag.hbmBg);
1046
1047 /* get the actual background of the update region */
1048 BitBlt(hdcOffScreen, 0, 0, sizeRegX, sizeRegY, hdcDrag,
1049 origRegX, origRegY, SRCCOPY);
1050 /* erase the old image */
1051 BitBlt(hdcOffScreen, origOldX - origRegX, origOldY - origRegY,
1052 InternalDrag.himl->cx, InternalDrag.himl->cy, hdcBg, 0, 0,
1053 SRCCOPY);
1054 /* save the background */
1055 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
1056 hdcOffScreen, origNewX - origRegX, origNewY - origRegY, SRCCOPY);
1057 /* draw the image */
1058 ImageList_InternalDragDraw(hdcOffScreen, origNewX - origRegX,
1059 origNewY - origRegY);
1060 /* draw the update region to the screen */
1061 BitBlt(hdcDrag, origRegX, origRegY, sizeRegX, sizeRegY,
1062 hdcOffScreen, 0, 0, SRCCOPY);
1063
1064 DeleteDC(hdcBg);
1065 DeleteDC(hdcOffScreen);
1066 DeleteObject(hbmOffScreen);
1067 ReleaseDC(InternalDrag.hwnd, hdcDrag);
1068 }
1069
1070 /* update the image position */
1071 InternalDrag.x = x;
1072 InternalDrag.y = y;
1073
1074 return TRUE;
1075 }
1076
1077
1078 /*************************************************************************
1079 * ImageList_DragShowNolock [COMCTL32.@]
1080 *
1081 * Shows or hides the drag image.
1082 *
1083 * PARAMS
1084 * bShow [I] TRUE shows the drag image, FALSE hides it.
1085 *
1086 * RETURNS
1087 * Success: TRUE
1088 * Failure: FALSE
1089 */
1090
1091 BOOL WINAPI
1092 ImageList_DragShowNolock (BOOL bShow)
1093 {
1094 HDC hdcDrag;
1095 HDC hdcBg;
1096 INT x, y;
1097
1098 if (!is_valid(InternalDrag.himl))
1099 return FALSE;
1100
1101 TRACE("bShow=0x%X!\n", bShow);
1102
1103 /* DragImage is already visible/hidden */
1104 if ((InternalDrag.bShow && bShow) || (!InternalDrag.bShow && !bShow)) {
1105 return FALSE;
1106 }
1107
1108 /* position of the origin of the DragImage */
1109 x = InternalDrag.x - InternalDrag.dxHotspot;
1110 y = InternalDrag.y - InternalDrag.dyHotspot;
1111
1112 hdcDrag = GetDCEx (InternalDrag.hwnd, 0,
1113 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
1114 if (!hdcDrag) {
1115 return FALSE;
1116 }
1117
1118 hdcBg = CreateCompatibleDC(hdcDrag);
1119 if (!InternalDrag.hbmBg) {
1120 InternalDrag.hbmBg = CreateCompatibleBitmap(hdcDrag,
1121 InternalDrag.himl->cx, InternalDrag.himl->cy);
1122 }
1123 SelectObject(hdcBg, InternalDrag.hbmBg);
1124
1125 if (bShow) {
1126 /* save the background */
1127 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
1128 hdcDrag, x, y, SRCCOPY);
1129 /* show the image */
1130 ImageList_InternalDragDraw(hdcDrag, x, y);
1131 } else {
1132 /* hide the image */
1133 BitBlt(hdcDrag, x, y, InternalDrag.himl->cx, InternalDrag.himl->cy,
1134 hdcBg, 0, 0, SRCCOPY);
1135 }
1136
1137 InternalDrag.bShow = !InternalDrag.bShow;
1138
1139 DeleteDC(hdcBg);
1140 ReleaseDC (InternalDrag.hwnd, hdcDrag);
1141 return TRUE;
1142 }
1143
1144
1145 /*************************************************************************
1146 * ImageList_Draw [COMCTL32.@]
1147 *
1148 * Draws an image.
1149 *
1150 * PARAMS
1151 * himl [I] handle to image list
1152 * i [I] image index
1153 * hdc [I] handle to device context
1154 * x [I] x position
1155 * y [I] y position
1156 * fStyle [I] drawing flags
1157 *
1158 * RETURNS
1159 * Success: TRUE
1160 * Failure: FALSE
1161 *
1162 * SEE
1163 * ImageList_DrawEx.
1164 */
1165
1166 BOOL WINAPI
1167 ImageList_Draw (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y, UINT fStyle)
1168 {
1169 return ImageList_DrawEx (himl, i, hdc, x, y, 0, 0,
1170 CLR_DEFAULT, CLR_DEFAULT, fStyle);
1171 }
1172
1173
1174 /*************************************************************************
1175 * ImageList_DrawEx [COMCTL32.@]
1176 *
1177 * Draws an image and allows to use extended drawing features.
1178 *
1179 * PARAMS
1180 * himl [I] handle to image list
1181 * i [I] image index
1182 * hdc [I] handle to device context
1183 * x [I] X position
1184 * y [I] Y position
1185 * dx [I] X offset
1186 * dy [I] Y offset
1187 * rgbBk [I] background color
1188 * rgbFg [I] foreground color
1189 * fStyle [I] drawing flags
1190 *
1191 * RETURNS
1192 * Success: TRUE
1193 * Failure: FALSE
1194 *
1195 * NOTES
1196 * Calls ImageList_DrawIndirect.
1197 *
1198 * SEE
1199 * ImageList_DrawIndirect.
1200 */
1201
1202 BOOL WINAPI
1203 ImageList_DrawEx (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y,
1204 INT dx, INT dy, COLORREF rgbBk, COLORREF rgbFg,
1205 UINT fStyle)
1206 {
1207 IMAGELISTDRAWPARAMS imldp;
1208
1209 ZeroMemory (&imldp, sizeof(imldp));
1210 imldp.cbSize = sizeof(imldp);
1211 imldp.himl = himl;
1212 imldp.i = i;
1213 imldp.hdcDst = hdc,
1214 imldp.x = x;
1215 imldp.y = y;
1216 imldp.cx = dx;
1217 imldp.cy = dy;
1218 imldp.rgbBk = rgbBk;
1219 imldp.rgbFg = rgbFg;
1220 imldp.fStyle = fStyle;
1221
1222 return ImageList_DrawIndirect (&imldp);
1223 }
1224
1225
1226 static BOOL alpha_blend_image( HIMAGELIST himl, HDC dest_dc, int dest_x, int dest_y,
1227 int src_x, int src_y, int cx, int cy, BLENDFUNCTION func,
1228 UINT style, COLORREF blend_col )
1229 {
1230 BOOL ret = FALSE;
1231 HDC hdc;
1232 HBITMAP bmp = 0, mask = 0;
1233 BITMAPINFO *info;
1234 void *bits, *mask_bits;
1235 unsigned int *ptr;
1236 int i, j;
1237
1238 if (!(hdc = CreateCompatibleDC( 0 ))) return FALSE;
1239 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
1240 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1241 info->bmiHeader.biWidth = cx;
1242 info->bmiHeader.biHeight = cy;
1243 info->bmiHeader.biPlanes = 1;
1244 info->bmiHeader.biBitCount = 32;
1245 info->bmiHeader.biCompression = BI_RGB;
1246 info->bmiHeader.biSizeImage = cx * cy * 4;
1247 info->bmiHeader.biXPelsPerMeter = 0;
1248 info->bmiHeader.biYPelsPerMeter = 0;
1249 info->bmiHeader.biClrUsed = 0;
1250 info->bmiHeader.biClrImportant = 0;
1251 if (!(bmp = CreateDIBSection( himl->hdcImage, info, DIB_RGB_COLORS, &bits, 0, 0 ))) goto done;
1252 SelectObject( hdc, bmp );
1253 BitBlt( hdc, 0, 0, cx, cy, himl->hdcImage, src_x, src_y, SRCCOPY );
1254
1255 if (blend_col != CLR_NONE)
1256 {
1257 BYTE r = GetRValue( blend_col );
1258 BYTE g = GetGValue( blend_col );
1259 BYTE b = GetBValue( blend_col );
1260
1261 if (style & ILD_BLEND25)
1262 {
1263 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1264 *ptr = ((*ptr & 0xff000000) |
1265 ((((*ptr & 0x00ff0000) * 3 + (r << 16)) / 4) & 0x00ff0000) |
1266 ((((*ptr & 0x0000ff00) * 3 + (g << 8)) / 4) & 0x0000ff00) |
1267 ((((*ptr & 0x000000ff) * 3 + (b << 0)) / 4) & 0x000000ff));
1268 }
1269 else if (style & ILD_BLEND50)
1270 {
1271 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1272 *ptr = ((*ptr & 0xff000000) |
1273 ((((*ptr & 0x00ff0000) + (r << 16)) / 2) & 0x00ff0000) |
1274 ((((*ptr & 0x0000ff00) + (g << 8)) / 2) & 0x0000ff00) |
1275 ((((*ptr & 0x000000ff) + (b << 0)) / 2) & 0x000000ff));
1276 }
1277 }
1278
1279 if (himl->has_alpha) /* we already have an alpha channel in this case */
1280 {
1281 /* pre-multiply by the alpha channel */
1282 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1283 {
1284 DWORD alpha = *ptr >> 24;
1285 *ptr = ((*ptr & 0xff000000) |
1286 (((*ptr & 0x00ff0000) * alpha / 255) & 0x00ff0000) |
1287 (((*ptr & 0x0000ff00) * alpha / 255) & 0x0000ff00) |
1288 (((*ptr & 0x000000ff) * alpha / 255)));
1289 }
1290 }
1291 else if (himl->hbmMask)
1292 {
1293 unsigned int width_bytes = (cx + 31) / 32 * 4;
1294 /* generate alpha channel from the mask */
1295 info->bmiHeader.biBitCount = 1;
1296 info->bmiHeader.biSizeImage = width_bytes * cy;
1297 info->bmiColors[0].rgbRed = 0;
1298 info->bmiColors[0].rgbGreen = 0;
1299 info->bmiColors[0].rgbBlue = 0;
1300 info->bmiColors[0].rgbReserved = 0;
1301 info->bmiColors[1].rgbRed = 0xff;
1302 info->bmiColors[1].rgbGreen = 0xff;
1303 info->bmiColors[1].rgbBlue = 0xff;
1304 info->bmiColors[1].rgbReserved = 0;
1305 if (!(mask = CreateDIBSection( himl->hdcMask, info, DIB_RGB_COLORS, &mask_bits, 0, 0 )))
1306 goto done;
1307 SelectObject( hdc, mask );
1308 BitBlt( hdc, 0, 0, cx, cy, himl->hdcMask, src_x, src_y, SRCCOPY );
1309 SelectObject( hdc, bmp );
1310 for (i = 0, ptr = bits; i < cy; i++)
1311 for (j = 0; j < cx; j++, ptr++)
1312 if ((((BYTE *)mask_bits)[i * width_bytes + j / 8] << (j % 8)) & 0x80) *ptr = 0;
1313 else *ptr |= 0xff000000;
1314 }
1315
1316 ret = GdiAlphaBlend( dest_dc, dest_x, dest_y, cx, cy, hdc, 0, 0, cx, cy, func );
1317
1318 done:
1319 DeleteDC( hdc );
1320 if (bmp) DeleteObject( bmp );
1321 if (mask) DeleteObject( mask );
1322 HeapFree( GetProcessHeap(), 0, info );
1323 return ret;
1324 }
1325
1326 /*************************************************************************
1327 * ImageList_DrawIndirect [COMCTL32.@]
1328 *
1329 * Draws an image using various parameters specified in pimldp.
1330 *
1331 * PARAMS
1332 * pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
1333 *
1334 * RETURNS
1335 * Success: TRUE
1336 * Failure: FALSE
1337 */
1338
1339 BOOL WINAPI
1340 ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
1341 {
1342 INT cx, cy, nOvlIdx;
1343 DWORD fState, dwRop;
1344 UINT fStyle;
1345 COLORREF oldImageBk, oldImageFg;
1346 HDC hImageDC, hImageListDC, hMaskListDC;
1347 HBITMAP hImageBmp, hOldImageBmp, hBlendMaskBmp;
1348 BOOL bIsTransparent, bBlend, bResult = FALSE, bMask;
1349 HIMAGELIST himl;
1350 HBRUSH hOldBrush;
1351 POINT pt;
1352 BOOL has_alpha;
1353
1354 if (!pimldp || !(himl = pimldp->himl)) return FALSE;
1355 if (!is_valid(himl)) return FALSE;
1356 if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
1357
1358 imagelist_point_from_index( himl, pimldp->i, &pt );
1359 pt.x += pimldp->xBitmap;
1360 pt.y += pimldp->yBitmap;
1361
1362 fState = pimldp->cbSize < sizeof(IMAGELISTDRAWPARAMS) ? ILS_NORMAL : pimldp->fState;
1363 fStyle = pimldp->fStyle & ~ILD_OVERLAYMASK;
1364 cx = (pimldp->cx == 0) ? himl->cx : pimldp->cx;
1365 cy = (pimldp->cy == 0) ? himl->cy : pimldp->cy;
1366
1367 bIsTransparent = (fStyle & ILD_TRANSPARENT);
1368 if( pimldp->rgbBk == CLR_NONE )
1369 bIsTransparent = TRUE;
1370 if( ( pimldp->rgbBk == CLR_DEFAULT ) && ( himl->clrBk == CLR_NONE ) )
1371 bIsTransparent = TRUE;
1372 bMask = (himl->flags & ILC_MASK) && (fStyle & ILD_MASK) ;
1373 bBlend = (fStyle & (ILD_BLEND25 | ILD_BLEND50) ) && !bMask;
1374
1375 TRACE("himl(%p) hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
1376 himl, himl->hbmMask, pimldp->i, pimldp->x, pimldp->y, cx, cy);
1377
1378 /* we will use these DCs to access the images and masks in the ImageList */
1379 hImageListDC = himl->hdcImage;
1380 hMaskListDC = himl->hdcMask;
1381
1382 /* these will accumulate the image and mask for the image we're drawing */
1383 hImageDC = CreateCompatibleDC( pimldp->hdcDst );
1384 hImageBmp = CreateCompatibleBitmap( pimldp->hdcDst, cx, cy );
1385 hBlendMaskBmp = bBlend ? CreateBitmap(cx, cy, 1, 1, NULL) : 0;
1386
1387 /* Create a compatible DC. */
1388 if (!hImageListDC || !hImageDC || !hImageBmp ||
1389 (bBlend && !hBlendMaskBmp) || (himl->hbmMask && !hMaskListDC))
1390 goto cleanup;
1391
1392 hOldImageBmp = SelectObject(hImageDC, hImageBmp);
1393
1394 /*
1395 * To obtain a transparent look, background color should be set
1396 * to white and foreground color to black when blitting the
1397 * monochrome mask.
1398 */
1399 oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
1400 oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
1401
1402 has_alpha = (himl->has_alpha && himl->has_alpha[pimldp->i]);
1403 if (!bMask && (has_alpha || (fState & ILS_ALPHA)))
1404 {
1405 COLORREF colour, blend_col = CLR_NONE;
1406 BLENDFUNCTION func;
1407
1408 if (bBlend)
1409 {
1410 blend_col = pimldp->rgbFg;
1411 if (blend_col == CLR_DEFAULT) blend_col = GetSysColor( COLOR_HIGHLIGHT );
1412 else if (blend_col == CLR_NONE) blend_col = GetTextColor( pimldp->hdcDst );
1413 }
1414
1415 func.BlendOp = AC_SRC_OVER;
1416 func.BlendFlags = 0;
1417 func.SourceConstantAlpha = (fState & ILS_ALPHA) ? pimldp->Frame : 255;
1418 func.AlphaFormat = AC_SRC_ALPHA;
1419
1420 if (bIsTransparent)
1421 {
1422 bResult = alpha_blend_image( himl, pimldp->hdcDst, pimldp->x, pimldp->y,
1423 pt.x, pt.y, cx, cy, func, fStyle, blend_col );
1424 goto end;
1425 }
1426 colour = pimldp->rgbBk;
1427 if (colour == CLR_DEFAULT) colour = himl->clrBk;
1428 if (colour == CLR_NONE) colour = GetBkColor( pimldp->hdcDst );
1429
1430 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1431 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1432 alpha_blend_image( himl, hImageDC, 0, 0, pt.x, pt.y, cx, cy, func, fStyle, blend_col );
1433 DeleteObject (SelectObject (hImageDC, hOldBrush));
1434 bResult = BitBlt( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCCOPY );
1435 goto end;
1436 }
1437
1438 /*
1439 * Draw the initial image
1440 */
1441 if( bMask ) {
1442 if (himl->hbmMask) {
1443 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (GetTextColor(pimldp->hdcDst)));
1444 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1445 BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCPAINT);
1446 DeleteObject (SelectObject (hImageDC, hOldBrush));
1447 if( bIsTransparent )
1448 {
1449 BitBlt ( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCAND);
1450 bResult = TRUE;
1451 goto end;
1452 }
1453 } else {
1454 hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
1455 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
1456 SelectObject(hImageDC, hOldBrush);
1457 }
1458 } else {
1459 /* blend the image with the needed solid background */
1460 COLORREF colour = RGB(0,0,0);
1461
1462 if( !bIsTransparent )
1463 {
1464 colour = pimldp->rgbBk;
1465 if( colour == CLR_DEFAULT )
1466 colour = himl->clrBk;
1467 if( colour == CLR_NONE )
1468 colour = GetBkColor(pimldp->hdcDst);
1469 }
1470
1471 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1472 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1473 if (himl->hbmMask)
1474 {
1475 BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND );
1476 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCPAINT );
1477 }
1478 else
1479 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCCOPY);
1480 DeleteObject (SelectObject (hImageDC, hOldBrush));
1481 }
1482
1483 /* Time for blending, if required */
1484 if (bBlend) {
1485 HBRUSH hBlendBrush;
1486 COLORREF clrBlend = pimldp->rgbFg;
1487 HDC hBlendMaskDC = hImageListDC;
1488 HBITMAP hOldBitmap;
1489
1490 /* Create the blend Mask */
1491 hOldBitmap = SelectObject(hBlendMaskDC, hBlendMaskBmp);
1492 hBlendBrush = fStyle & ILD_BLEND50 ? himl->hbrBlend50 : himl->hbrBlend25;
1493 hOldBrush = SelectObject(hBlendMaskDC, hBlendBrush);
1494 PatBlt(hBlendMaskDC, 0, 0, cx, cy, PATCOPY);
1495 SelectObject(hBlendMaskDC, hOldBrush);
1496
1497 /* Modify the blend mask if an Image Mask exist */
1498 if(himl->hbmMask) {
1499 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, 0x220326); /* NOTSRCAND */
1500 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, NOTSRCCOPY);
1501 }
1502
1503 /* now apply blend to the current image given the BlendMask */
1504 if (clrBlend == CLR_DEFAULT) clrBlend = GetSysColor (COLOR_HIGHLIGHT);
1505 else if (clrBlend == CLR_NONE) clrBlend = GetTextColor (pimldp->hdcDst);
1506 hOldBrush = SelectObject (hImageDC, CreateSolidBrush(clrBlend));
1507 BitBlt (hImageDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, 0xB8074A); /* PSDPxax */
1508 DeleteObject(SelectObject(hImageDC, hOldBrush));
1509 SelectObject(hBlendMaskDC, hOldBitmap);
1510 }
1511
1512 /* Now do the overlay image, if any */
1513 nOvlIdx = (pimldp->fStyle & ILD_OVERLAYMASK) >> 8;
1514 if ( (nOvlIdx >= 1) && (nOvlIdx <= MAX_OVERLAYIMAGE)) {
1515 nOvlIdx = himl->nOvlIdx[nOvlIdx - 1];
1516 if ((nOvlIdx >= 0) && (nOvlIdx < himl->cCurImage)) {
1517 POINT ptOvl;
1518 imagelist_point_from_index( himl, nOvlIdx, &ptOvl );
1519 ptOvl.x += pimldp->xBitmap;
1520 if (himl->hbmMask && !(fStyle & ILD_IMAGE))
1521 BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ptOvl.x, ptOvl.y, SRCAND);
1522 BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ptOvl.x, ptOvl.y, SRCPAINT);
1523 }
1524 }
1525
1526 if (fState & ILS_SATURATE) FIXME("ILS_SATURATE: unimplemented!\n");
1527 if (fState & ILS_GLOW) FIXME("ILS_GLOW: unimplemented!\n");
1528 if (fState & ILS_SHADOW) FIXME("ILS_SHADOW: unimplemented!\n");
1529
1530 if (fStyle & ILD_PRESERVEALPHA) FIXME("ILD_PRESERVEALPHA: unimplemented!\n");
1531 if (fStyle & ILD_SCALE) FIXME("ILD_SCALE: unimplemented!\n");
1532 if (fStyle & ILD_DPISCALE) FIXME("ILD_DPISCALE: unimplemented!\n");
1533
1534 /* now copy the image to the screen */
1535 dwRop = SRCCOPY;
1536 if (himl->hbmMask && bIsTransparent ) {
1537 COLORREF oldDstFg = SetTextColor(pimldp->hdcDst, RGB( 0, 0, 0 ) );
1538 COLORREF oldDstBk = SetBkColor(pimldp->hdcDst, RGB( 0xff, 0xff, 0xff ));
1539 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND);
1540 SetBkColor(pimldp->hdcDst, oldDstBk);
1541 SetTextColor(pimldp->hdcDst, oldDstFg);
1542 dwRop = SRCPAINT;
1543 }
1544 if (fStyle & ILD_ROP) dwRop = pimldp->dwRop;
1545 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, dwRop);
1546
1547 bResult = TRUE;
1548 end:
1549 /* cleanup the mess */
1550 SetBkColor(hImageDC, oldImageBk);
1551 SetTextColor(hImageDC, oldImageFg);
1552 SelectObject(hImageDC, hOldImageBmp);
1553 cleanup:
1554 DeleteObject(hBlendMaskBmp);
1555 DeleteObject(hImageBmp);
1556 DeleteDC(hImageDC);
1557
1558 return bResult;
1559 }
1560
1561
1562 /*************************************************************************
1563 * ImageList_Duplicate [COMCTL32.@]
1564 *
1565 * Duplicates an image list.
1566 *
1567 * PARAMS
1568 * himlSrc [I] source image list handle
1569 *
1570 * RETURNS
1571 * Success: Handle of duplicated image list.
1572 * Failure: NULL
1573 */
1574
1575 HIMAGELIST WINAPI
1576 ImageList_Duplicate (HIMAGELIST himlSrc)
1577 {
1578 HIMAGELIST himlDst;
1579
1580 if (!is_valid(himlSrc)) {
1581 ERR("Invalid image list handle!\n");
1582 return NULL;
1583 }
1584
1585 himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
1586 himlSrc->cCurImage, himlSrc->cGrow);
1587
1588 if (himlDst)
1589 {
1590 SIZE sz;
1591
1592 imagelist_get_bitmap_size(himlSrc, himlSrc->cCurImage, &sz);
1593 BitBlt (himlDst->hdcImage, 0, 0, sz.cx, sz.cy,
1594 himlSrc->hdcImage, 0, 0, SRCCOPY);
1595
1596 if (himlDst->hbmMask)
1597 BitBlt (himlDst->hdcMask, 0, 0, sz.cx, sz.cy,
1598 himlSrc->hdcMask, 0, 0, SRCCOPY);
1599
1600 himlDst->cCurImage = himlSrc->cCurImage;
1601 if (himlSrc->has_alpha && himlDst->has_alpha)
1602 memcpy( himlDst->has_alpha, himlSrc->has_alpha, himlDst->cCurImage );
1603 }
1604 return himlDst;
1605 }
1606
1607
1608 /*************************************************************************
1609 * ImageList_EndDrag [COMCTL32.@]
1610 *
1611 * Finishes a drag operation.
1612 *
1613 * PARAMS
1614 * no Parameters
1615 *
1616 * RETURNS
1617 * Success: TRUE
1618 * Failure: FALSE
1619 */
1620
1621 VOID WINAPI
1622 ImageList_EndDrag (void)
1623 {
1624 /* cleanup the InternalDrag struct */
1625 InternalDrag.hwnd = 0;
1626 ImageList_Destroy (InternalDrag.himl);
1627 InternalDrag.himl = 0;
1628 InternalDrag.x= 0;
1629 InternalDrag.y= 0;
1630 InternalDrag.dxHotspot = 0;
1631 InternalDrag.dyHotspot = 0;
1632 InternalDrag.bShow = FALSE;
1633 DeleteObject(InternalDrag.hbmBg);
1634 InternalDrag.hbmBg = 0;
1635 }
1636
1637
1638 /*************************************************************************
1639 * ImageList_GetBkColor [COMCTL32.@]
1640 *
1641 * Returns the background color of an image list.
1642 *
1643 * PARAMS
1644 * himl [I] Image list handle.
1645 *
1646 * RETURNS
1647 * Success: background color
1648 * Failure: CLR_NONE
1649 */
1650
1651 COLORREF WINAPI
1652 ImageList_GetBkColor (HIMAGELIST himl)
1653 {
1654 return himl ? himl->clrBk : CLR_NONE;
1655 }
1656
1657
1658 /*************************************************************************
1659 * ImageList_GetDragImage [COMCTL32.@]
1660 *
1661 * Returns the handle to the internal drag image list.
1662 *
1663 * PARAMS
1664 * ppt [O] Pointer to the drag position. Can be NULL.
1665 * pptHotspot [O] Pointer to the position of the hot spot. Can be NULL.
1666 *
1667 * RETURNS
1668 * Success: Handle of the drag image list.
1669 * Failure: NULL.
1670 */
1671
1672 HIMAGELIST WINAPI
1673 ImageList_GetDragImage (POINT *ppt, POINT *pptHotspot)
1674 {
1675 if (is_valid(InternalDrag.himl)) {
1676 if (ppt) {
1677 ppt->x = InternalDrag.x;
1678 ppt->y = InternalDrag.y;
1679 }
1680 if (pptHotspot) {
1681 pptHotspot->x = InternalDrag.dxHotspot;
1682 pptHotspot->y = InternalDrag.dyHotspot;
1683 }
1684 return (InternalDrag.himl);
1685 }
1686
1687 return NULL;
1688 }
1689
1690
1691 /*************************************************************************
1692 * ImageList_GetFlags [COMCTL32.@]
1693 *
1694 * Gets the flags of the specified image list.
1695 *
1696 * PARAMS
1697 * himl [I] Handle to image list
1698 *
1699 * RETURNS
1700 * Image list flags.
1701 *
1702 * BUGS
1703 * Stub.
1704 */
1705
1706 DWORD WINAPI
1707 ImageList_GetFlags(HIMAGELIST himl)
1708 {
1709 TRACE("%p\n", himl);
1710
1711 return is_valid(himl) ? himl->flags : 0;
1712 }
1713
1714
1715 /*************************************************************************
1716 * ImageList_GetIcon [COMCTL32.@]
1717 *
1718 * Creates an icon from a masked image of an image list.
1719 *
1720 * PARAMS
1721 * himl [I] handle to image list
1722 * i [I] image index
1723 * flags [I] drawing style flags
1724 *
1725 * RETURNS
1726 * Success: icon handle
1727 * Failure: NULL
1728 */
1729
1730 HICON WINAPI
1731 ImageList_GetIcon (HIMAGELIST himl, INT i, UINT fStyle)
1732 {
1733 ICONINFO ii;
1734 HICON hIcon;
1735 HBITMAP hOldDstBitmap;
1736 HDC hdcDst;
1737 POINT pt;
1738
1739 TRACE("%p %d %d\n", himl, i, fStyle);
1740 if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
1741
1742 ii.fIcon = TRUE;
1743 ii.xHotspot = 0;
1744 ii.yHotspot = 0;
1745
1746 /* create colour bitmap */
1747 hdcDst = GetDC(0);
1748 ii.hbmColor = CreateCompatibleBitmap(hdcDst, himl->cx, himl->cy);
1749 ReleaseDC(0, hdcDst);
1750
1751 hdcDst = CreateCompatibleDC(0);
1752
1753 imagelist_point_from_index( himl, i, &pt );
1754
1755 /* draw mask*/
1756 ii.hbmMask = CreateBitmap (himl->cx, himl->cy, 1, 1, NULL);
1757 hOldDstBitmap = SelectObject (hdcDst, ii.hbmMask);
1758 if (himl->hbmMask) {
1759 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1760 himl->hdcMask, pt.x, pt.y, SRCCOPY);
1761 }
1762 else
1763 PatBlt (hdcDst, 0, 0, himl->cx, himl->cy, BLACKNESS);
1764
1765 /* draw image*/
1766 SelectObject (hdcDst, ii.hbmColor);
1767 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1768 himl->hdcImage, pt.x, pt.y, SRCCOPY);
1769
1770 /*
1771 * CreateIconIndirect requires us to deselect the bitmaps from
1772 * the DCs before calling
1773 */
1774 SelectObject(hdcDst, hOldDstBitmap);
1775
1776 hIcon = CreateIconIndirect (&ii);
1777
1778 DeleteObject (ii.hbmMask);
1779 DeleteObject (ii.hbmColor);
1780 DeleteDC (hdcDst);
1781
1782 return hIcon;
1783 }
1784
1785
1786 /*************************************************************************
1787 * ImageList_GetIconSize [COMCTL32.@]
1788 *
1789 * Retrieves the size of an image in an image list.
1790 *
1791 * PARAMS
1792 * himl [I] handle to image list
1793 * cx [O] pointer to the image width.
1794 * cy [O] pointer to the image height.
1795 *
1796 * RETURNS
1797 * Success: TRUE
1798 * Failure: FALSE
1799 *
1800 * NOTES
1801 * All images in an image list have the same size.
1802 */
1803
1804 BOOL WINAPI
1805 ImageList_GetIconSize (HIMAGELIST himl, INT *cx, INT *cy)
1806 {
1807 if (!is_valid(himl) || !cx || !cy)
1808 return FALSE;
1809 if ((himl->cx <= 0) || (himl->cy <= 0))
1810 return FALSE;
1811
1812 *cx = himl->cx;
1813 *cy = himl->cy;
1814
1815 return TRUE;
1816 }
1817
1818
1819 /*************************************************************************
1820 * ImageList_GetImageCount [COMCTL32.@]
1821 *
1822 * Returns the number of images in an image list.
1823 *
1824 * PARAMS
1825 * himl [I] handle to image list
1826 *
1827 * RETURNS
1828 * Success: Number of images.
1829 * Failure: 0
1830 */
1831
1832 INT WINAPI
1833 ImageList_GetImageCount (HIMAGELIST himl)
1834 {
1835 if (!is_valid(himl))
1836 return 0;
1837
1838 return himl->cCurImage;
1839 }
1840
1841
1842 /*************************************************************************
1843 * ImageList_GetImageInfo [COMCTL32.@]
1844 *
1845 * Returns information about an image in an image list.
1846 *
1847 * PARAMS
1848 * himl [I] handle to image list
1849 * i [I] image index
1850 * pImageInfo [O] pointer to the image information
1851 *
1852 * RETURNS
1853 * Success: TRUE
1854 * Failure: FALSE
1855 */
1856
1857 BOOL WINAPI
1858 ImageList_GetImageInfo (HIMAGELIST himl, INT i, IMAGEINFO *pImageInfo)
1859 {
1860 POINT pt;
1861
1862 if (!is_valid(himl) || (pImageInfo == NULL))
1863 return FALSE;
1864 if ((i < 0) || (i >= himl->cCurImage))
1865 return FALSE;
1866
1867 pImageInfo->hbmImage = himl->hbmImage;
1868 pImageInfo->hbmMask = himl->hbmMask;
1869
1870 imagelist_point_from_index( himl, i, &pt );
1871 pImageInfo->rcImage.top = pt.y;
1872 pImageInfo->rcImage.bottom = pt.y + himl->cy;
1873 pImageInfo->rcImage.left = pt.x;
1874 pImageInfo->rcImage.right = pt.x + himl->cx;
1875
1876 return TRUE;
1877 }
1878
1879
1880 /*************************************************************************
1881 * ImageList_GetImageRect [COMCTL32.@]
1882 *
1883 * Retrieves the rectangle of the specified image in an image list.
1884 *
1885 * PARAMS
1886 * himl [I] handle to image list
1887 * i [I] image index
1888 * lpRect [O] pointer to the image rectangle
1889 *
1890 * RETURNS
1891 * Success: TRUE
1892 * Failure: FALSE
1893 *
1894 * NOTES
1895 * This is an UNDOCUMENTED function!!!
1896 */
1897
1898 BOOL WINAPI
1899 ImageList_GetImageRect (HIMAGELIST himl, INT i, LPRECT lpRect)
1900 {
1901 POINT pt;
1902
1903 if (!is_valid(himl) || (lpRect == NULL))
1904 return FALSE;
1905 if ((i < 0) || (i >= himl->cCurImage))
1906 return FALSE;
1907
1908 imagelist_point_from_index( himl, i, &pt );
1909 lpRect->left = pt.x;
1910 lpRect->top = pt.y;
1911 lpRect->right = pt.x + himl->cx;
1912 lpRect->bottom = pt.y + himl->cy;
1913
1914 return TRUE;
1915 }
1916
1917
1918 /*************************************************************************
1919 * ImageList_LoadImage [COMCTL32.@]
1920 * ImageList_LoadImageA [COMCTL32.@]
1921 *
1922 * Creates an image list from a bitmap, icon or cursor.
1923 *
1924 * See ImageList_LoadImageW.
1925 */
1926
1927 HIMAGELIST WINAPI
1928 ImageList_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
1929 COLORREF clrMask, UINT uType, UINT uFlags)
1930 {
1931 HIMAGELIST himl;
1932 LPWSTR lpbmpW;
1933 DWORD len;
1934
1935 if (IS_INTRESOURCE(lpbmp))
1936 return ImageList_LoadImageW(hi, (LPCWSTR)lpbmp, cx, cGrow, clrMask,
1937 uType, uFlags);
1938
1939 len = MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, NULL, 0);
1940 lpbmpW = Alloc(len * sizeof(WCHAR));
1941 MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, lpbmpW, len);
1942
1943 himl = ImageList_LoadImageW(hi, lpbmpW, cx, cGrow, clrMask, uType, uFlags);
1944 Free (lpbmpW);
1945 return himl;
1946 }
1947
1948
1949 /*************************************************************************
1950 * ImageList_LoadImageW [COMCTL32.@]
1951 *
1952 * Creates an image list from a bitmap, icon or cursor.
1953 *
1954 * PARAMS
1955 * hi [I] instance handle
1956 * lpbmp [I] name or id of the image
1957 * cx [I] width of each image
1958 * cGrow [I] number of images to expand
1959 * clrMask [I] mask color
1960 * uType [I] type of image to load
1961 * uFlags [I] loading flags
1962 *
1963 * RETURNS
1964 * Success: handle to the loaded image list
1965 * Failure: NULL
1966 *
1967 * SEE
1968 * LoadImage ()
1969 */
1970
1971 HIMAGELIST WINAPI
1972 ImageList_LoadImageW (HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow,
1973 COLORREF clrMask, UINT uType, UINT uFlags)
1974 {
1975 HIMAGELIST himl = NULL;
1976 HANDLE handle;
1977 INT nImageCount;
1978
1979 handle = LoadImageW (hi, lpbmp, uType, 0, 0, uFlags);
1980 if (!handle) {
1981 WARN("Couldn't load image\n");
1982 return NULL;
1983 }
1984
1985 if (uType == IMAGE_BITMAP) {
1986 DIBSECTION dib;
1987 UINT color;
1988
1989 if (GetObjectW (handle, sizeof(dib), &dib) == sizeof(BITMAP)) color = ILC_COLOR;
1990 else color = dib.dsBm.bmBitsPixel;
1991
1992 /* To match windows behavior, if cx is set to zero and
1993 the flag DI_DEFAULTSIZE is specified, cx becomes the
1994 system metric value for icons. If the flag is not specified
1995 the function sets the size to the height of the bitmap */
1996 if (cx == 0)
1997 {
1998 if (uFlags & DI_DEFAULTSIZE)
1999 cx = GetSystemMetrics (SM_CXICON);
2000 else
2001 cx = dib.dsBm.bmHeight;
2002 }
2003
2004 nImageCount = dib.dsBm.bmWidth / cx;
2005
2006 himl = ImageList_Create (cx, dib.dsBm.bmHeight, ILC_MASK | color, nImageCount, cGrow);
2007 if (!himl) {
2008 DeleteObject (handle);
2009 return NULL;
2010 }
2011 ImageList_AddMasked (himl, handle, clrMask);
2012 }
2013 else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
2014 ICONINFO ii;
2015 BITMAP bmp;
2016
2017 GetIconInfo (handle, &ii);
2018 GetObjectW (ii.hbmColor, sizeof(BITMAP), &bmp);
2019 himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
2020 ILC_MASK | ILC_COLOR, 1, cGrow);
2021 if (!himl) {
2022 DeleteObject (ii.hbmColor);
2023 DeleteObject (ii.hbmMask);
2024 DeleteObject (handle);
2025 return NULL;
2026 }
2027 ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
2028 DeleteObject (ii.hbmColor);
2029 DeleteObject (ii.hbmMask);
2030 }
2031
2032 DeleteObject (handle);
2033
2034 return himl;
2035 }
2036
2037
2038 /*************************************************************************
2039 * ImageList_Merge [COMCTL32.@]
2040 *
2041 * Create an image list containing a merged image from two image lists.
2042 *
2043 * PARAMS
2044 * himl1 [I] handle to first image list
2045 * i1 [I] first image index
2046 * himl2 [I] handle to second image list
2047 * i2 [I] second image index
2048 * dx [I] X offset of the second image relative to the first.
2049 * dy [I] Y offset of the second image relative to the first.
2050 *
2051 * RETURNS
2052 * Success: The newly created image list. It contains a single image
2053 * consisting of the second image merged with the first.
2054 * Failure: NULL, if either himl1 or himl2 are invalid.
2055 *
2056 * NOTES
2057 * - The returned image list should be deleted by the caller using
2058 * ImageList_Destroy() when it is no longer required.
2059 * - If either i1 or i2 are not valid image indices they will be treated
2060 * as a blank image.
2061 */
2062 HIMAGELIST WINAPI
2063 ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
2064 INT dx, INT dy)
2065 {
2066 HIMAGELIST himlDst = NULL;
2067 INT cxDst, cyDst;
2068 INT xOff1, yOff1, xOff2, yOff2;
2069 POINT pt1, pt2;
2070
2071 TRACE("(himl1=%p i1=%d himl2=%p i2=%d dx=%d dy=%d)\n", himl1, i1, himl2,
2072 i2, dx, dy);
2073
2074 if (!is_valid(himl1) || !is_valid(himl2))
2075 return NULL;
2076
2077 if (dx > 0) {
2078 cxDst = max (himl1->cx, dx + himl2->cx);
2079 xOff1 = 0;
2080 xOff2 = dx;
2081 }
2082 else if (dx < 0) {
2083 cxDst = max (himl2->cx, himl1->cx - dx);
2084 xOff1 = -dx;
2085 xOff2 = 0;
2086 }
2087 else {
2088 cxDst = max (himl1->cx, himl2->cx);
2089 xOff1 = 0;
2090 xOff2 = 0;
2091 }
2092
2093 if (dy > 0) {
2094 cyDst = max (himl1->cy, dy + himl2->cy);
2095 yOff1 = 0;
2096 yOff2 = dy;
2097 }
2098 else if (dy < 0) {
2099 cyDst = max (himl2->cy, himl1->cy - dy);
2100 yOff1 = -dy;
2101 yOff2 = 0;
2102 }
2103 else {
2104 cyDst = max (himl1->cy, himl2->cy);
2105 yOff1 = 0;
2106 yOff2 = 0;
2107 }
2108
2109 himlDst = ImageList_Create (cxDst, cyDst, ILC_MASK | ILC_COLOR, 1, 1);
2110
2111 if (himlDst)
2112 {
2113 imagelist_point_from_index( himl1, i1, &pt1 );
2114 imagelist_point_from_index( himl2, i2, &pt2 );
2115
2116 /* copy image */
2117 BitBlt (himlDst->hdcImage, 0, 0, cxDst, cyDst, himl1->hdcImage, 0, 0, BLACKNESS);
2118 if (i1 >= 0 && i1 < himl1->cCurImage)
2119 BitBlt (himlDst->hdcImage, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcImage, pt1.x, pt1.y, SRCCOPY);
2120 if (i2 >= 0 && i2 < himl2->cCurImage)
2121 {
2122 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask , pt2.x, pt2.y, SRCAND);
2123 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcImage, pt2.x, pt2.y, SRCPAINT);
2124 }
2125
2126 /* copy mask */
2127 BitBlt (himlDst->hdcMask, 0, 0, cxDst, cyDst, himl1->hdcMask, 0, 0, WHITENESS);
2128 if (i1 >= 0 && i1 < himl1->cCurImage)
2129 BitBlt (himlDst->hdcMask, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcMask, pt1.x, pt1.y, SRCCOPY);
2130 if (i2 >= 0 && i2 < himl2->cCurImage)
2131 BitBlt (himlDst->hdcMask, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask, pt2.x, pt2.y, SRCAND);
2132
2133 himlDst->cCurImage = 1;
2134 }
2135
2136 return himlDst;
2137 }
2138
2139
2140 /* helper for ImageList_Read, see comments below */
2141 static void *read_bitmap(LPSTREAM pstm, BITMAPINFO *bmi)
2142 {
2143 BITMAPFILEHEADER bmfh;
2144 int bitsperpixel, palspace;
2145 void *bits;
2146
2147 if (FAILED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)))
2148 return NULL;
2149
2150 if (bmfh.bfType != (('M'<<8)|'B'))
2151 return NULL;
2152
2153 if (FAILED(IStream_Read ( pstm, &bmi->bmiHeader, sizeof(bmi->bmiHeader), NULL)))
2154 return NULL;
2155
2156 if ((bmi->bmiHeader.biSize != sizeof(bmi->bmiHeader)))
2157 return NULL;
2158
2159 TRACE("width %u, height %u, planes %u, bpp %u\n",
2160 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
2161 bmi->bmiHeader.biPlanes, bmi->bmiHeader.biBitCount);
2162
2163 bitsperpixel = bmi->bmiHeader.biPlanes * bmi->bmiHeader.biBitCount;
2164 if (bitsperpixel<=8)
2165 palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
2166 else
2167 palspace = 0;
2168
2169 bmi->bmiHeader.biSizeImage = get_dib_image_size( bmi );
2170
2171 /* read the palette right after the end of the bitmapinfoheader */
2172 if (palspace && FAILED(IStream_Read(pstm, bmi->bmiColors, palspace, NULL)))
2173 return NULL;
2174
2175 bits = Alloc(bmi->bmiHeader.biSizeImage);
2176 if (!bits) return NULL;
2177
2178 if (FAILED(IStream_Read(pstm, bits, bmi->bmiHeader.biSizeImage, NULL)))
2179 {
2180 Free(bits);
2181 return NULL;
2182 }
2183 return bits;
2184 }
2185
2186 /*************************************************************************
2187 * ImageList_Read [COMCTL32.@]
2188 *
2189 * Reads an image list from a stream.
2190 *
2191 * PARAMS
2192 * pstm [I] pointer to a stream
2193 *
2194 * RETURNS
2195 * Success: handle to image list
2196 * Failure: NULL
2197 *
2198 * The format is like this:
2199 * ILHEAD ilheadstruct;
2200 *
2201 * for the color image part:
2202 * BITMAPFILEHEADER bmfh;
2203 * BITMAPINFOHEADER bmih;
2204 * only if it has a palette:
2205 * RGBQUAD rgbs[nr_of_paletted_colors];
2206 *
2207 * BYTE colorbits[imagesize];
2208 *
2209 * the following only if the ILC_MASK bit is set in ILHEAD.ilFlags:
2210 * BITMAPFILEHEADER bmfh_mask;
2211 * BITMAPINFOHEADER bmih_mask;
2212 * only if it has a palette (it usually does not):
2213 * RGBQUAD rgbs[nr_of_paletted_colors];
2214 *
2215 * BYTE maskbits[imagesize];
2216 */
2217 HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
2218 {
2219 char image_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
2220 char mask_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
2221 BITMAPINFO *image_info = (BITMAPINFO *)image_buf;
2222 BITMAPINFO *mask_info = (BITMAPINFO *)mask_buf;
2223 void *image_bits, *mask_bits = NULL;
2224 ILHEAD ilHead;
2225 HIMAGELIST himl;
2226 int i;
2227
2228 TRACE("%p\n", pstm);
2229
2230 if (FAILED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL)))
2231 return NULL;
2232 if (ilHead.usMagic != (('L' << 8) | 'I'))
2233 return NULL;
2234 if (ilHead.usVersion != 0x101) /* probably version? */
2235 return NULL;
2236
2237 TRACE("cx %u, cy %u, flags 0x%04x, cCurImage %u, cMaxImage %u\n",
2238 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2239
2240 himl = ImageList_Create(ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2241 if (!himl)
2242 return NULL;
2243
2244 if (!(image_bits = read_bitmap(pstm, image_info)))
2245 {
2246 WARN("failed to read bitmap from stream\n");
2247 return NULL;
2248 }
2249 if (ilHead.flags & ILC_MASK)
2250 {
2251 if (!(mask_bits = read_bitmap(pstm, mask_info)))
2252 {
2253 WARN("failed to read mask bitmap from stream\n");
2254 return NULL;
2255 }
2256 }
2257 else mask_info = NULL;
2258
2259 if (himl->has_alpha && image_info->bmiHeader.biBitCount == 32)
2260 {
2261 DWORD *ptr = image_bits;
2262 BYTE *mask_ptr = mask_bits;
2263 int stride = himl->cy * image_info->bmiHeader.biWidth;
2264
2265 if (image_info->bmiHeader.biHeight > 0) /* bottom-up */
2266 {
2267 ptr += image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride;
2268 mask_ptr += (image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride) / 8;
2269 stride = -stride;
2270 image_info->bmiHeader.biHeight = himl->cy;
2271 }
2272 else image_info->bmiHeader.biHeight = -himl->cy;
2273
2274 for (i = 0; i < ilHead.cCurImage; i += TILE_COUNT)
2275 {
2276 add_dib_bits( himl, i, min( ilHead.cCurImage - i, TILE_COUNT ),
2277 himl->cx, himl->cy, image_info, mask_info, ptr, mask_ptr );
2278 ptr += stride;
2279 mask_ptr += stride / 8;
2280 }
2281 }
2282 else
2283 {
2284 StretchDIBits( himl->hdcImage, 0, 0, image_info->bmiHeader.biWidth, image_info->bmiHeader.biHeight,
2285 0, 0, image_info->bmiHeader.biWidth, image_info->bmiHeader.biHeight,
2286 image_bits, image_info, DIB_RGB_COLORS, SRCCOPY);
2287 if (mask_info)
2288 StretchDIBits( himl->hdcMask, 0, 0, mask_info->bmiHeader.biWidth, mask_info->bmiHeader.biHeight,
2289 0, 0, mask_info->bmiHeader.biWidth, mask_info->bmiHeader.biHeight,
2290 mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY);
2291 }
2292 Free( image_bits );
2293 Free( mask_bits );
2294
2295 himl->cCurImage = ilHead.cCurImage;
2296 himl->cMaxImage = ilHead.cMaxImage;
2297
2298 ImageList_SetBkColor(himl,ilHead.bkcolor);
2299 for (i=0;i<4;i++)
2300 ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1);
2301 return himl;
2302 }
2303
2304
2305 /*************************************************************************
2306 * ImageList_Remove [COMCTL32.@]
2307 *
2308 * Removes an image from an image list
2309 *
2310 * PARAMS
2311 * himl [I] image list handle
2312 * i [I] image index
2313 *
2314 * RETURNS
2315 * Success: TRUE
2316 * Failure: FALSE
2317 *
2318 * FIXME: as the image list storage test shows, native comctl32 simply shifts
2319 * images without creating a new bitmap.
2320 */
2321 BOOL WINAPI
2322 ImageList_Remove (HIMAGELIST himl, INT i)
2323 {
2324 HBITMAP hbmNewImage, hbmNewMask;
2325 HDC hdcBmp;
2326 SIZE sz;
2327
2328 TRACE("(himl=%p i=%d)\n", himl, i);
2329
2330 if (!is_valid(himl)) {
2331 ERR("Invalid image list handle!\n");
2332 return FALSE;
2333 }
2334
2335 if ((i < -1) || (i >= himl->cCurImage)) {
2336 TRACE("index out of range! %d\n", i);
2337 return FALSE;
2338 }
2339
2340 if (i == -1) {
2341 INT nCount;
2342
2343 /* remove all */
2344 if (himl->cCurImage == 0) {
2345 /* remove all on empty ImageList is allowed */
2346 TRACE("remove all on empty ImageList!\n");
2347 return TRUE;
2348 }
2349
2350 himl->cMaxImage = himl->cInitial + himl->cGrow - 1;
2351 himl->cCurImage = 0;
2352 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2353 himl->nOvlIdx[nCount] = -1;
2354
2355 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2356 SelectObject (himl->hdcImage, hbmNewImage);
2357 DeleteObject (himl->hbmImage);
2358 himl->hbmImage = hbmNewImage;
2359
2360 if (himl->hbmMask) {
2361
2362 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2363 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2364 SelectObject (himl->hdcMask, hbmNewMask);
2365 DeleteObject (himl->hbmMask);
2366 himl->hbmMask = hbmNewMask;
2367 }
2368 }
2369 else {
2370 /* delete one image */
2371 TRACE("Remove single image! %d\n", i);
2372
2373 /* create new bitmap(s) */
2374 TRACE(" - Number of images: %d / %d (Old/New)\n",
2375 himl->cCurImage, himl->cCurImage - 1);
2376
2377 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2378
2379 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz );
2380 if (himl->hbmMask)
2381 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2382 else
2383 hbmNewMask = 0; /* Just to keep compiler happy! */
2384
2385 hdcBmp = CreateCompatibleDC (0);
2386
2387 /* copy all images and masks prior to the "removed" image */
2388 if (i > 0) {
2389 TRACE("Pre image copy: Copy %d images\n", i);
2390
2391 SelectObject (hdcBmp, hbmNewImage);
2392 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, 0, i, 0 );
2393
2394 if (himl->hbmMask) {
2395 SelectObject (hdcBmp, hbmNewMask);
2396 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, 0, i, 0 );
2397 }
2398 }
2399
2400 /* copy all images and masks behind the removed image */
2401 if (i < himl->cCurImage - 1) {
2402 TRACE("Post image copy!\n");
2403
2404 SelectObject (hdcBmp, hbmNewImage);
2405 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, i + 1,
2406 (himl->cCurImage - i), i );
2407
2408 if (himl->hbmMask) {
2409 SelectObject (hdcBmp, hbmNewMask);
2410 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, i + 1,
2411 (himl->cCurImage - i), i );
2412 }
2413 }
2414
2415 DeleteDC (hdcBmp);
2416
2417 /* delete old images and insert new ones */
2418 SelectObject (himl->hdcImage, hbmNewImage);
2419 DeleteObject (himl->hbmImage);
2420 himl->hbmImage = hbmNewImage;
2421 if (himl->hbmMask) {
2422 SelectObject (himl->hdcMask, hbmNewMask);
2423 DeleteObject (himl->hbmMask);
2424 himl->hbmMask = hbmNewMask;
2425 }
2426
2427 himl->cCurImage--;
2428 }
2429
2430 return TRUE;
2431 }
2432
2433
2434 /*************************************************************************
2435 * ImageList_Replace [COMCTL32.@]
2436 *
2437 * Replaces an image in an image list with a new image.
2438 *
2439 * PARAMS
2440 * himl [I] handle to image list
2441 * i [I] image index
2442 * hbmImage [I] handle to image bitmap
2443 * hbmMask [I] handle to mask bitmap. Can be NULL.
2444 *
2445 * RETURNS
2446 * Success: TRUE
2447 * Failure: FALSE
2448 */
2449
2450 BOOL WINAPI
2451 ImageList_Replace (HIMAGELIST himl, INT i, HBITMAP hbmImage,
2452 HBITMAP hbmMask)
2453 {
2454 HDC hdcImage;
2455 BITMAP bmp;
2456 POINT pt;
2457
2458 TRACE("%p %d %p %p\n", himl, i, hbmImage, hbmMask);
2459
2460 if (!is_valid(himl)) {
2461 ERR("Invalid image list handle!\n");
2462 return FALSE;
2463 }
2464
2465 if ((i >= himl->cMaxImage) || (i < 0)) {
2466 ERR("Invalid image index!\n");
2467 return FALSE;
2468 }
2469
2470 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
2471 return FALSE;
2472
2473 hdcImage = CreateCompatibleDC (0);
2474
2475 /* Replace Image */
2476 SelectObject (hdcImage, hbmImage);
2477
2478 if (add_with_alpha( himl, hdcImage, i, 1, bmp.bmWidth, bmp.bmHeight, hbmImage, hbmMask ))
2479 goto done;
2480
2481 imagelist_point_from_index(himl, i, &pt);
2482 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2483 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2484
2485 if (himl->hbmMask)
2486 {
2487 HDC hdcTemp;
2488 HBITMAP hOldBitmapTemp;
2489
2490 hdcTemp = CreateCompatibleDC(0);
2491 hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
2492
2493 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2494 hdcTemp, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2495 SelectObject(hdcTemp, hOldBitmapTemp);
2496 DeleteDC(hdcTemp);
2497
2498 /* Remove the background from the image
2499 */
2500 BitBlt (himl->hdcImage, pt.x, pt.y, bmp.bmWidth, bmp.bmHeight,
2501 himl->hdcMask, pt.x, pt.y, 0x220326); /* NOTSRCAND */
2502 }
2503
2504 done:
2505 DeleteDC (hdcImage);
2506
2507 return TRUE;
2508 }
2509
2510
2511 /*************************************************************************
2512 * ImageList_ReplaceIcon [COMCTL32.@]
2513 *
2514 * Replaces an image in an image list using an icon.
2515 *
2516 * PARAMS
2517 * himl [I] handle to image list
2518 * i [I] image index
2519 * hIcon [I] handle to icon
2520 *
2521 * RETURNS
2522 * Success: index of the replaced image
2523 * Failure: -1
2524 */
2525
2526 INT WINAPI
2527 ImageList_ReplaceIcon (HIMAGELIST himl, INT nIndex, HICON hIcon)
2528 {
2529 HDC hdcImage;
2530 HICON hBestFitIcon;
2531 ICONINFO ii;
2532 BITMAP bmp;
2533 BOOL ret;
2534 POINT pt;
2535
2536 TRACE("(%p %d %p)\n", himl, nIndex, hIcon);
2537
2538 if (!is_valid(himl)) {
2539 ERR("invalid image list\n");
2540 return -1;
2541 }
2542 if ((nIndex >= himl->cMaxImage) || (nIndex < -1)) {
2543 ERR("invalid image index %d / %d\n", nIndex, himl->cMaxImage);
2544 return -1;
2545 }
2546
2547 hBestFitIcon = CopyImage(
2548 hIcon, IMAGE_ICON,
2549 himl->cx, himl->cy,
2550 LR_COPYFROMRESOURCE);
2551 /* the above will fail if the icon wasn't loaded from a resource, so try
2552 * again without LR_COPYFROMRESOURCE flag */
2553 if (!hBestFitIcon)
2554 hBestFitIcon = CopyImage(
2555 hIcon, IMAGE_ICON,
2556 himl->cx, himl->cy,
2557 0);
2558 if (!hBestFitIcon)
2559 return -1;
2560
2561 ret = GetIconInfo (hBestFitIcon, &ii);
2562 if (!ret) {
2563 DestroyIcon(hBestFitIcon);
2564 return -1;
2565 }
2566
2567 ret = GetObjectW (ii.hbmMask, sizeof(BITMAP), &bmp);
2568 if (!ret) {
2569 ERR("couldn't get mask bitmap info\n");
2570 if (ii.hbmColor)
2571 DeleteObject (ii.hbmColor);
2572 if (ii.hbmMask)
2573 DeleteObject (ii.hbmMask);
2574 DestroyIcon(hBestFitIcon);
2575 return -1;
2576 }
2577
2578 if (nIndex == -1) {
2579 if (himl->cCurImage + 1 > himl->cMaxImage)
2580 IMAGELIST_InternalExpandBitmaps(himl, 1);
2581
2582 nIndex = himl->cCurImage;
2583 himl->cCurImage++;
2584 }
2585
2586 hdcImage = CreateCompatibleDC (0);
2587 TRACE("hdcImage=%p\n", hdcImage);
2588 if (hdcImage == 0)
2589 ERR("invalid hdcImage!\n");
2590
2591 if (himl->has_alpha)
2592 {
2593 if (!ii.hbmColor)
2594 {
2595 UINT height = bmp.bmHeight / 2;
2596 HDC hdcMask = CreateCompatibleDC( 0 );
2597 HBITMAP color = CreateBitmap( bmp.bmWidth, height, 1, 1, NULL );
2598 SelectObject( hdcImage, color );
2599 SelectObject( hdcMask, ii.hbmMask );
2600 BitBlt( hdcImage, 0, 0, bmp.bmWidth, height, hdcMask, 0, height, SRCCOPY );
2601 ret = add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, height, color, ii.hbmMask );
2602 DeleteDC( hdcMask );
2603 DeleteObject( color );
2604 if (ret) goto done;
2605 }
2606 else if (add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, bmp.bmHeight,
2607 ii.hbmColor, ii.hbmMask )) goto done;
2608 }
2609
2610 imagelist_point_from_index(himl, nIndex, &pt);
2611
2612 SetTextColor(himl->hdcImage, RGB(0,0,0));
2613 SetBkColor (himl->hdcImage, RGB(255,255,255));
2614
2615 if (ii.hbmColor)
2616 {
2617 SelectObject (hdcImage, ii.hbmColor);
2618 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2619 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2620 if (himl->hbmMask)
2621 {
2622 SelectObject (hdcImage, ii.hbmMask);
2623 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2624 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2625 }
2626 }
2627 else
2628 {
2629 UINT height = bmp.bmHeight / 2;
2630 SelectObject (hdcImage, ii.hbmMask);
2631 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2632 hdcImage, 0, height, bmp.bmWidth, height, SRCCOPY);
2633 if (himl->hbmMask)
2634 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2635 hdcImage, 0, 0, bmp.bmWidth, height, SRCCOPY);
2636 }
2637
2638 done:
2639 DestroyIcon(hBestFitIcon);
2640 if (hdcImage)
2641 DeleteDC (hdcImage);
2642 if (ii.hbmColor)
2643 DeleteObject (ii.hbmColor);
2644 if (ii.hbmMask)
2645 DeleteObject (ii.hbmMask);
2646
2647 TRACE("Insert index = %d, himl->cCurImage = %d\n", nIndex, himl->cCurImage);
2648 return nIndex;
2649 }
2650
2651
2652 /*************************************************************************
2653 * ImageList_SetBkColor [COMCTL32.@]
2654 *
2655 * Sets the background color of an image list.
2656 *
2657 * PARAMS
2658 * himl [I] handle to image list
2659 * clrBk [I] background color
2660 *
2661 * RETURNS
2662 * Success: previous background color
2663 * Failure: CLR_NONE
2664 */
2665
2666 COLORREF WINAPI
2667 ImageList_SetBkColor (HIMAGELIST himl, COLORREF clrBk)
2668 {
2669 COLORREF clrOldBk;
2670
2671 if (!is_valid(himl))
2672 return CLR_NONE;
2673
2674 clrOldBk = himl->clrBk;
2675 himl->clrBk = clrBk;
2676 return clrOldBk;
2677 }
2678
2679
2680 /*************************************************************************
2681 * ImageList_SetDragCursorImage [COMCTL32.@]
2682 *
2683 * Combines the specified image with the current drag image
2684 *
2685 * PARAMS
2686 * himlDrag [I] handle to drag image list
2687 * iDrag [I] drag image index
2688 * dxHotspot [I] X position of the hot spot
2689 * dyHotspot [I] Y position of the hot spot
2690 *
2691 * RETURNS
2692 * Success: TRUE
2693 * Failure: FALSE
2694 *
2695 * NOTES
2696 * - The names dxHotspot, dyHotspot are misleading because they have nothing
2697 * to do with a hotspot but are only the offset of the origin of the new
2698 * image relative to the origin of the old image.
2699 *
2700 * - When this function is called and the drag image is visible, a
2701 * short flickering occurs but this matches the Win9x behavior. It is
2702 * possible to fix the flickering using code like in ImageList_DragMove.
2703 */
2704
2705 BOOL WINAPI
2706 ImageList_SetDragCursorImage (HIMAGELIST himlDrag, INT iDrag,
2707 INT dxHotspot, INT dyHotspot)
2708 {
2709 HIMAGELIST himlTemp;
2710 BOOL visible;
2711
2712 if (!is_valid(InternalDrag.himl) || !is_valid(himlDrag))
2713 return FALSE;
2714
2715 TRACE(" dxH=%d dyH=%d nX=%d nY=%d\n",
2716 dxHotspot, dyHotspot, InternalDrag.dxHotspot, InternalDrag.dyHotspot);
2717
2718 visible = InternalDrag.bShow;
2719
2720 himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag,
2721 dxHotspot, dyHotspot);
2722
2723 if (visible) {
2724 /* hide the drag image */
2725 ImageList_DragShowNolock(FALSE);
2726 }
2727 if ((InternalDrag.himl->cx != himlTemp->cx) ||
2728 (InternalDrag.himl->cy != himlTemp->cy)) {
2729 /* the size of the drag image changed, invalidate the buffer */
2730 DeleteObject(InternalDrag.hbmBg);
2731 InternalDrag.hbmBg = 0;
2732 }
2733
2734 ImageList_Destroy (InternalDrag.himl);
2735 InternalDrag.himl = himlTemp;
2736
2737 if (visible) {
2738 /* show the drag image */
2739 ImageList_DragShowNolock(TRUE);
2740 }
2741
2742 return TRUE;
2743 }
2744
2745
2746 /*************************************************************************
2747 * ImageList_SetFilter [COMCTL32.@]
2748 *
2749 * Sets a filter (or does something completely different)!!???
2750 * It removes 12 Bytes from the stack (3 Parameters).
2751 *
2752 * PARAMS
2753 * himl [I] SHOULD be a handle to image list
2754 * i [I] COULD be an index?
2755 * dwFilter [I] ???
2756 *
2757 * RETURNS
2758 * Success: TRUE ???
2759 * Failure: FALSE ???
2760 *
2761 * BUGS
2762 * This is an UNDOCUMENTED function!!!!
2763 * empty stub.
2764 */
2765
2766 BOOL WINAPI
2767 ImageList_SetFilter (HIMAGELIST himl, INT i, DWORD dwFilter)
2768 {
2769 FIXME("(%p 0x%x 0x%x):empty stub!\n", himl, i, dwFilter);
2770
2771 return FALSE;
2772 }
2773
2774
2775 /*************************************************************************
2776 * ImageList_SetFlags [COMCTL32.@]
2777 *
2778 * Sets the image list flags.
2779 *
2780 * PARAMS
2781 * himl [I] Handle to image list
2782 * flags [I] Flags to set
2783 *
2784 * RETURNS
2785 * Old flags?
2786 *
2787 * BUGS
2788 * Stub.
2789 */
2790
2791 DWORD WINAPI
2792 ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
2793 {
2794 FIXME("(%p %08x):empty stub\n", himl, flags);
2795 return 0;
2796 }
2797
2798
2799 /*************************************************************************
2800 * ImageList_SetIconSize [COMCTL32.@]
2801 *
2802 * Sets the image size of the bitmap and deletes all images.
2803 *
2804 * PARAMS
2805 * himl [I] handle to image list
2806 * cx [I] image width
2807 * cy [I] image height
2808 *
2809 * RETURNS
2810 * Success: TRUE
2811 * Failure: FALSE
2812 */
2813
2814 BOOL WINAPI
2815 ImageList_SetIconSize (HIMAGELIST himl, INT cx, INT cy)
2816 {
2817 INT nCount;
2818 HBITMAP hbmNew;
2819
2820 if (!is_valid(himl))
2821 return FALSE;
2822
2823 /* remove all images */
2824 himl->cMaxImage = himl->cInitial + 1;
2825 himl->cCurImage = 0;
2826 himl->cx = cx;
2827 himl->cy = cy;
2828
2829 /* initialize overlay mask indices */
2830 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2831 himl->nOvlIdx[nCount] = -1;
2832
2833 hbmNew = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2834 SelectObject (himl->hdcImage, hbmNew);
2835 DeleteObject (himl->hbmImage);
2836 himl->hbmImage = hbmNew;
2837
2838 if (himl->hbmMask) {
2839 SIZE sz;
2840 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2841 hbmNew = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2842 SelectObject (himl->hdcMask, hbmNew);
2843 DeleteObject (himl->hbmMask);
2844 himl->hbmMask = hbmNew;
2845 }
2846
2847 return TRUE;
2848 }
2849
2850
2851 /*************************************************************************
2852 * ImageList_SetImageCount [COMCTL32.@]
2853 *
2854 * Resizes an image list to the specified number of images.
2855 *
2856 * PARAMS
2857 * himl [I] handle to image list
2858 * iImageCount [I] number of images in the image list
2859 *
2860 * RETURNS
2861 * Success: TRUE
2862 * Failure: FALSE
2863 */
2864
2865 BOOL WINAPI
2866 ImageList_SetImageCount (HIMAGELIST himl, UINT iImageCount)
2867 {
2868 HDC hdcBitmap;
2869 HBITMAP hbmNewBitmap, hbmOld;
2870 INT nNewCount, nCopyCount;
2871
2872 TRACE("%p %d\n",himl,iImageCount);
2873
2874 if (!is_valid(himl))
2875 return FALSE;
2876 if (himl->cMaxImage > iImageCount)
2877 {
2878 himl->cCurImage = iImageCount;
2879 /* TODO: shrink the bitmap when cMaxImage-cCurImage>cGrow ? */
2880 return TRUE;
2881 }
2882
2883 nNewCount = iImageCount + himl->cGrow;
2884 nCopyCount = min(himl->cCurImage, iImageCount);
2885
2886 hdcBitmap = CreateCompatibleDC (0);
2887
2888 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
2889
2890 if (hbmNewBitmap != 0)
2891 {
2892 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2893 imagelist_copy_images( himl, himl->hdcImage, hdcBitmap, 0, nCopyCount, 0 );
2894 SelectObject (hdcBitmap, hbmOld);
2895
2896 /* FIXME: delete 'empty' image space? */
2897
2898 SelectObject (himl->hdcImage, hbmNewBitmap);
2899 DeleteObject (himl->hbmImage);
2900 himl->hbmImage = hbmNewBitmap;
2901 }
2902 else
2903 ERR("Could not create new image bitmap !\n");
2904
2905 if (himl->hbmMask)
2906 {
2907 SIZE sz;
2908 imagelist_get_bitmap_size( himl, nNewCount, &sz );
2909 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2910 if (hbmNewBitmap != 0)
2911 {
2912 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2913 imagelist_copy_images( himl, himl->hdcMask, hdcBitmap, 0, nCopyCount, 0 );
2914 SelectObject (hdcBitmap, hbmOld);
2915
2916 /* FIXME: delete 'empty' image space? */
2917
2918 SelectObject (himl->hdcMask, hbmNewBitmap);
2919 DeleteObject (himl->hbmMask);
2920 himl->hbmMask = hbmNewBitmap;
2921 }
2922 else
2923 ERR("Could not create new mask bitmap!\n");
2924 }
2925
2926 DeleteDC (hdcBitmap);
2927
2928 if (himl->has_alpha)
2929 {
2930 char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
2931 if (new_alpha) himl->has_alpha = new_alpha;
2932 else
2933 {
2934 HeapFree( GetProcessHeap(), 0, himl->has_alpha );
2935 himl->has_alpha = NULL;
2936 }
2937 }
2938
2939 /* Update max image count and current image count */
2940 himl->cMaxImage = nNewCount;
2941 himl->cCurImage = iImageCount;
2942
2943 return TRUE;
2944 }
2945
2946
2947 /*************************************************************************
2948 * ImageList_SetOverlayImage [COMCTL32.@]
2949 *
2950 * Assigns an overlay mask index to an existing image in an image list.
2951 *
2952 * PARAMS
2953 * himl [I] handle to image list
2954 * iImage [I] image index
2955 * iOverlay [I] overlay mask index
2956 *
2957 * RETURNS
2958 * Success: TRUE
2959 * Failure: FALSE
2960 */
2961
2962 BOOL WINAPI
2963 ImageList_SetOverlayImage (HIMAGELIST himl, INT iImage, INT iOverlay)
2964 {
2965 if (!is_valid(himl))
2966 return FALSE;
2967 if ((iOverlay < 1) || (iOverlay > MAX_OVERLAYIMAGE))
2968 return FALSE;
2969 if ((iImage!=-1) && ((iImage < 0) || (iImage > himl->cCurImage)))
2970 return FALSE;
2971 himl->nOvlIdx[iOverlay - 1] = iImage;
2972 return TRUE;
2973 }
2974
2975
2976
2977 /* helper for ImageList_Write - write bitmap to pstm
2978 * currently everything is written as 24 bit RGB, except masks
2979 */
2980 static BOOL
2981 _write_bitmap(HBITMAP hBitmap, LPSTREAM pstm)
2982 {
2983 LPBITMAPFILEHEADER bmfh;
2984 LPBITMAPINFOHEADER bmih;
2985 LPBYTE data = NULL, lpBits;
2986 BITMAP bm;
2987 INT bitCount, sizeImage, offBits, totalSize;
2988 HDC xdc;
2989 BOOL result = FALSE;
2990
2991 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bm))
2992 return FALSE;
2993
2994 bitCount = bm.bmBitsPixel == 1 ? 1 : 24;
2995 sizeImage = get_dib_stride(bm.bmWidth, bitCount) * bm.bmHeight;
2996
2997 totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
2998 if(bitCount != 24)
2999 totalSize += (1 << bitCount) * sizeof(RGBQUAD);
3000 offBits = totalSize;
3001 totalSize += sizeImage;
3002
3003 data = Alloc(totalSize);
3004 bmfh = (LPBITMAPFILEHEADER)data;
3005 bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
3006 lpBits = data + offBits;
3007
3008 /* setup BITMAPFILEHEADER */
3009 bmfh->bfType = (('M' << 8) | 'B');
3010 bmfh->bfSize = offBits;
3011 bmfh->bfReserved1 = 0;
3012 bmfh->bfReserved2 = 0;
3013 bmfh->bfOffBits = offBits;
3014
3015 /* setup BITMAPINFOHEADER */
3016 bmih->biSize = sizeof(BITMAPINFOHEADER);
3017 bmih->biWidth = bm.bmWidth;
3018 bmih->biHeight = bm.bmHeight;
3019 bmih->biPlanes = 1;
3020 bmih->biBitCount = bitCount;
3021 bmih->biCompression = BI_RGB;
3022 bmih->biSizeImage = sizeImage;
3023 bmih->biXPelsPerMeter = 0;
3024 bmih->biYPelsPerMeter = 0;
3025 bmih->biClrUsed = 0;
3026 bmih->biClrImportant = 0;
3027
3028 xdc = GetDC(0);
3029 result = GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBits, (BITMAPINFO *)bmih, DIB_RGB_COLORS) == bm.bmHeight;
3030 ReleaseDC(0, xdc);
3031 if (!result)
3032 goto failed;
3033
3034 TRACE("width %u, height %u, planes %u, bpp %u\n",
3035 bmih->biWidth, bmih->biHeight,
3036 bmih->biPlanes, bmih->biBitCount);
3037
3038 if(bitCount == 1) {
3039 /* Hack. */
3040 LPBITMAPINFO inf = (LPBITMAPINFO)bmih;
3041 inf->bmiColors[0].rgbRed = inf->bmiColors[0].rgbGreen = inf->bmiColors[0].rgbBlue = 0;
3042 inf->bmiColors[1].rgbRed = inf->bmiColors[1].rgbGreen = inf->bmiColors[1].rgbBlue = 0xff;
3043 }
3044
3045 if(FAILED(IStream_Write(pstm, data, totalSize, NULL)))
3046 goto failed;
3047
3048 result = TRUE;
3049
3050 failed:
3051 Free(data);
3052
3053 return result;
3054 }
3055
3056
3057 /*************************************************************************
3058 * ImageList_Write [COMCTL32.@]
3059 *
3060 * Writes an image list to a stream.
3061 *
3062 * PARAMS
3063 * himl [I] handle to image list
3064 * pstm [O] Pointer to a stream.
3065 *
3066 * RETURNS
3067 * Success: TRUE
3068 * Failure: FALSE
3069 *
3070 * BUGS
3071 * probably.
3072 */
3073
3074 BOOL WINAPI
3075 ImageList_Write (HIMAGELIST himl, LPSTREAM pstm)
3076 {
3077 ILHEAD ilHead;
3078 int i;
3079
3080 TRACE("%p %p\n", himl, pstm);
3081
3082 if (!is_valid(himl))
3083 return FALSE;
3084
3085 ilHead.usMagic = (('L' << 8) | 'I');
3086 ilHead.usVersion = 0x101;
3087 ilHead.cCurImage = himl->cCurImage;
3088 ilHead.cMaxImage = himl->cMaxImage;
3089 ilHead.cGrow = himl->cGrow;
3090 ilHead.cx = himl->cx;
3091 ilHead.cy = himl->cy;
3092 ilHead.bkcolor = himl->clrBk;
3093 ilHead.flags = himl->flags;
3094 for(i = 0; i < 4; i++) {
3095 ilHead.ovls[i] = himl->nOvlIdx[i];
3096 }
3097
3098 TRACE("cx %u, cy %u, flags 0x04%x, cCurImage %u, cMaxImage %u\n",
3099 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
3100
3101 if(FAILED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
3102 return FALSE;
3103
3104 /* write the bitmap */
3105 if(!_write_bitmap(himl->hbmImage, pstm))
3106 return FALSE;
3107
3108 /* write the mask if we have one */
3109 if(himl->flags & ILC_MASK) {
3110 if(!_write_bitmap(himl->hbmMask, pstm))
3111 return FALSE;
3112 }
3113
3114 return TRUE;
3115 }
3116
3117
3118 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count)
3119 {
3120 HBITMAP hbmNewBitmap;
3121 UINT ilc = (himl->flags & 0xFE);
3122 SIZE sz;
3123
3124 imagelist_get_bitmap_size( himl, count, &sz );
3125
3126 if ((ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32) || ilc == ILC_COLOR)
3127 {
3128 VOID* bits;
3129 BITMAPINFO *bmi;
3130
3131 TRACE("Creating DIBSection %d x %d, %d Bits per Pixel\n",
3132 sz.cx, sz.cy, himl->uBitsPixel);
3133
3134 if (himl->uBitsPixel <= ILC_COLOR8)
3135 {
3136 LPPALETTEENTRY pal;
3137 ULONG i, colors;
3138 BYTE temp;
3139
3140 colors = 1 << himl->uBitsPixel;
3141 bmi = Alloc(sizeof(BITMAPINFOHEADER) +
3142 sizeof(PALETTEENTRY) * colors);
3143
3144 pal = (LPPALETTEENTRY)bmi->bmiColors;
3145 GetPaletteEntries(GetStockObject(DEFAULT_PALETTE), 0, colors, pal);
3146
3147 /* Swap colors returned by GetPaletteEntries so we can use them for
3148 * CreateDIBSection call. */
3149 for (i = 0; i < colors; i++)
3150 {
3151 temp = pal[i].peBlue;
3152 bmi->bmiColors[i].rgbRed = pal[i].peRed;
3153 bmi->bmiColors[i].rgbBlue = temp;
3154 }
3155 }
3156 else
3157 {
3158 bmi = Alloc(sizeof(BITMAPINFOHEADER));
3159 }
3160
3161 bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3162 bmi->bmiHeader.biWidth = sz.cx;
3163 bmi->bmiHeader.biHeight = sz.cy;
3164 bmi->bmiHeader.biPlanes = 1;
3165 bmi->bmiHeader.biBitCount = himl->uBitsPixel;
3166 bmi->bmiHeader.biCompression = BI_RGB;
3167 bmi->bmiHeader.biSizeImage = 0;
3168 bmi->bmiHeader.biXPelsPerMeter = 0;
3169 bmi->bmiHeader.biYPelsPerMeter = 0;
3170 bmi->bmiHeader.biClrUsed = 0;
3171 bmi->bmiHeader.biClrImportant = 0;
3172
3173 hbmNewBitmap = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, &bits, 0, 0);
3174
3175 Free (bmi);
3176 }
3177 else /*if (ilc == ILC_COLORDDB)*/
3178 {
3179 TRACE("Creating Bitmap: %d Bits per Pixel\n", himl->uBitsPixel);
3180
3181 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, himl->uBitsPixel, NULL);
3182 }
3183 TRACE("returning %p\n", hbmNewBitmap);
3184 return hbmNewBitmap;
3185 }
3186
3187 /*************************************************************************
3188 * ImageList_SetColorTable [COMCTL32.@]
3189 *
3190 * Sets the color table of an image list.
3191 *
3192 * PARAMS
3193 * himl [I] Handle to the image list.
3194 * uStartIndex [I] The first index to set.
3195 * cEntries [I] Number of entries to set.
3196 * prgb [I] New color information for color table for the image list.
3197 *
3198 * RETURNS
3199 * Success: Number of entries in the table that were set.
3200 * Failure: Zero.
3201 *
3202 * SEE
3203 * ImageList_Create(), SetDIBColorTable()
3204 */
3205
3206 UINT WINAPI
3207 ImageList_SetColorTable (HIMAGELIST himl, UINT uStartIndex, UINT cEntries, CONST RGBQUAD * prgb)
3208 {
3209 return SetDIBColorTable(himl->hdcImage, uStartIndex, cEntries, prgb);
3210 }
3211
3212 /*************************************************************************
3213 * ImageList_CoCreateInstance [COMCTL32.@]
3214 *
3215 * Creates a new imagelist instance and returns an interface pointer to it.
3216 *
3217 * PARAMS
3218 * rclsid [I] A reference to the CLSID (CLSID_ImageList).
3219 * punkOuter [I] Pointer to IUnknown interface for aggregation, if desired
3220 * riid [I] Identifier of the requested interface.
3221 * ppv [O] Returns the address of the pointer requested, or NULL.
3222 *
3223 * RETURNS
3224 * Success: S_OK.
3225 * Failure: Error value.
3226 */
3227 HRESULT WINAPI
3228 ImageList_CoCreateInstance (REFCLSID rclsid, const IUnknown *punkOuter, REFIID riid, void **ppv)
3229 {
3230 TRACE("(%s,%p,%s,%p)\n", debugstr_guid(rclsid), punkOuter, debugstr_guid(riid), ppv);
3231
3232 if (!IsEqualCLSID(&CLSID_ImageList, rclsid))
3233 return E_NOINTERFACE;
3234
3235 return ImageListImpl_CreateInstance(punkOuter, riid, ppv);
3236 }
3237
3238
3239 /*************************************************************************
3240 * IImageList implementation
3241 */
3242
3243 static HRESULT WINAPI ImageListImpl_QueryInterface(IImageList *iface,
3244 REFIID iid, void **ppv)
3245 {
3246 HIMAGELIST This = (HIMAGELIST) iface;
3247 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
3248
3249 if (!ppv) return E_INVALIDARG;
3250
3251 if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IImageList, iid))
3252 *ppv = This;
3253 else
3254 {
3255 *ppv = NULL;
3256 return E_NOINTERFACE;
3257 }
3258
3259 IUnknown_AddRef((IUnknown*)*ppv);
3260 return S_OK;
3261 }
3262
3263 static ULONG WINAPI ImageListImpl_AddRef(IImageList *iface)
3264 {
3265 HIMAGELIST This = (HIMAGELIST) iface;
3266 ULONG ref = InterlockedIncrement(&This->ref);
3267
3268 TRACE("(%p) refcount=%u\n", iface, ref);
3269 return ref;
3270 }
3271
3272 static ULONG WINAPI ImageListImpl_Release(IImageList *iface)
3273 {
3274 HIMAGELIST This = (HIMAGELIST) iface;
3275 ULONG ref = InterlockedDecrement(&This->ref);
3276
3277 TRACE("(%p) refcount=%u\n", iface, ref);
3278
3279 if (ref == 0)
3280 {
3281 /* delete image bitmaps */
3282 if (This->hbmImage) DeleteObject (This->hbmImage);
3283 if (This->hbmMask) DeleteObject (This->hbmMask);
3284
3285 /* delete image & mask DCs */
3286 if (This->hdcImage) DeleteDC (This->hdcImage);
3287 if (This->hdcMask) DeleteDC (This->hdcMask);
3288
3289 /* delete blending brushes */
3290 if (This->hbrBlend25) DeleteObject (This->hbrBlend25);
3291 if (This->hbrBlend50) DeleteObject (This->hbrBlend50);
3292
3293 This->lpVtbl = NULL;
3294 HeapFree(GetProcessHeap(), 0, This->has_alpha);
3295 HeapFree(GetProcessHeap(), 0, This);
3296 }
3297
3298 return ref;
3299 }
3300
3301 static HRESULT WINAPI ImageListImpl_Add(IImageList *iface, HBITMAP hbmImage,
3302 HBITMAP hbmMask, int *pi)
3303 {
3304 HIMAGELIST This = (HIMAGELIST) iface;
3305 int ret;
3306
3307 if (!pi)
3308 return E_FAIL;
3309
3310 ret = ImageList_Add(This, hbmImage, hbmMask);
3311
3312 if (ret == -1)
3313 return E_FAIL;
3314
3315 *pi = ret;
3316 return S_OK;
3317 }
3318
3319 static HRESULT WINAPI ImageListImpl_ReplaceIcon(IImageList *iface, int i,
3320 HICON hicon, int *pi)
3321 {
3322 HIMAGELIST This = (HIMAGELIST) iface;
3323 int ret;
3324
3325 if (!pi)
3326 return E_FAIL;
3327
3328 ret = ImageList_ReplaceIcon(This, i, hicon);
3329
3330 if (ret == -1)
3331 return E_FAIL;
3332
3333 *pi = ret;
3334 return S_OK;
3335 }
3336
3337 static HRESULT WINAPI ImageListImpl_SetOverlayImage(IImageList *iface,
3338 int iImage, int iOverlay)
3339 {
3340 return ImageList_SetOverlayImage((HIMAGELIST) iface, iImage, iOverlay)
3341 ? S_OK : E_FAIL;
3342 }
3343
3344 static HRESULT WINAPI ImageListImpl_Replace(IImageList *iface, int i,
3345 HBITMAP hbmImage, HBITMAP hbmMask)
3346 {
3347 return ImageList_Replace((HIMAGELIST) iface, i, hbmImage, hbmMask) ? S_OK :
3348 E_FAIL;
3349 }
3350
3351 static HRESULT WINAPI ImageListImpl_AddMasked(IImageList *iface, HBITMAP hbmImage,
3352 COLORREF crMask, int *pi)
3353 {
3354 HIMAGELIST This = (HIMAGELIST) iface;
3355 int ret;
3356
3357 if (!pi)
3358 return E_FAIL;
3359
3360 ret = ImageList_AddMasked(This, hbmImage, crMask);
3361
3362 if (ret == -1)
3363 return E_FAIL;
3364
3365 *pi = ret;
3366 return S_OK;
3367 }
3368
3369 static HRESULT WINAPI ImageListImpl_Draw(IImageList *iface,
3370 IMAGELISTDRAWPARAMS *pimldp)
3371 {
3372 HIMAGELIST This = (HIMAGELIST) iface;
3373 HIMAGELIST old_himl;
3374 int ret;
3375
3376 /* As far as I can tell, Windows simply ignores the contents of pimldp->himl
3377 so we shall simulate the same */
3378 old_himl = pimldp->himl;
3379 pimldp->himl = This;
3380
3381 ret = ImageList_DrawIndirect(pimldp);
3382
3383 pimldp->himl = old_himl;
3384 return ret ? S_OK : E_INVALIDARG;
3385 }
3386
3387 static HRESULT WINAPI ImageListImpl_Remove(IImageList *iface, int i)
3388 {
3389 return (ImageList_Remove((HIMAGELIST) iface, i) == 0) ? E_INVALIDARG : S_OK;
3390 }
3391
3392 static HRESULT WINAPI ImageListImpl_GetIcon(IImageList *iface, int i, UINT flags,
3393 HICON *picon)
3394 {
3395 HICON hIcon;
3396
3397 if (!picon)
3398 return E_FAIL;
3399
3400 hIcon = ImageList_GetIcon((HIMAGELIST) iface, i, flags);
3401
3402 if (hIcon == NULL)
3403 return E_FAIL;
3404
3405 *picon = hIcon;
3406 return S_OK;
3407 }
3408
3409 static HRESULT WINAPI ImageListImpl_GetImageInfo(IImageList *iface, int i,
3410 IMAGEINFO *pImageInfo)
3411 {
3412 return ImageList_GetImageInfo((HIMAGELIST) iface, i, pImageInfo) ? S_OK : E_FAIL;
3413 }
3414
3415 static HRESULT WINAPI ImageListImpl_Copy(IImageList *iface, int iDst,
3416 IUnknown *punkSrc, int iSrc, UINT uFlags)
3417 {
3418 HIMAGELIST This = (HIMAGELIST) iface;
3419 IImageList *src = NULL;
3420 HRESULT ret;
3421
3422 if (!punkSrc)
3423 return E_FAIL;
3424
3425 /* TODO: Add test for IID_ImageList2 too */
3426 if (FAILED(IImageList_QueryInterface(punkSrc, &IID_IImageList,
3427 (void **) &src)))
3428 return E_FAIL;
3429
3430 if (ImageList_Copy(This, iDst, (HIMAGELIST) src, iSrc, uFlags))
3431 ret = S_OK;
3432 else
3433 ret = E_FAIL;
3434
3435 IImageList_Release(src);
3436 return ret;
3437 }
3438
3439 static HRESULT WINAPI ImageListImpl_Merge(IImageList *iface, int i1,
3440 IUnknown *punk2, int i2, int dx, int dy, REFIID riid, void **ppv)
3441 {
3442 HIMAGELIST This = (HIMAGELIST) iface;
3443 IImageList *iml2 = NULL;
3444 HIMAGELIST hNew;
3445 HRESULT ret = E_FAIL;
3446
3447 TRACE("(%p)->(%d %p %d %d %d %s %p)\n", iface, i1, punk2, i2, dx, dy, debugstr_guid(riid), ppv);
3448
3449 /* TODO: Add test for IID_ImageList2 too */
3450 if (FAILED(IImageList_QueryInterface(punk2, &IID_IImageList,
3451 (void **) &iml2)))
3452 return E_FAIL;
3453
3454 hNew = ImageList_Merge(This, i1, (HIMAGELIST) iml2, i2, dx, dy);
3455
3456 /* Get the interface for the new image list */
3457 if (hNew)
3458 {
3459 IImageList *imerge = (IImageList*)hNew;
3460
3461 ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
3462 IImageList_Release(imerge);
3463 }
3464
3465 IImageList_Release(iml2);
3466 return ret;
3467 }
3468
3469 static HRESULT WINAPI ImageListImpl_Clone(IImageList *iface, REFIID riid, void **ppv)
3470 {
3471 HIMAGELIST This = (HIMAGELIST) iface;
3472 HIMAGELIST clone;
3473 HRESULT ret = E_FAIL;
3474
3475 TRACE("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
3476
3477 clone = ImageList_Duplicate(This);
3478
3479 /* Get the interface for the new image list */
3480 if (clone)
3481 {
3482 IImageList *iclone = (IImageList*)clone;
3483
3484 ret = HIMAGELIST_QueryInterface(clone, riid, ppv);
3485 IImageList_Release(iclone);
3486 }
3487
3488 return ret;
3489 }
3490
3491 static HRESULT WINAPI ImageListImpl_GetImageRect(IImageList *iface, int i,
3492 RECT *prc)
3493 {
3494 HIMAGELIST This = (HIMAGELIST) iface;
3495 IMAGEINFO info;
3496
3497 if (!prc)
3498 return E_FAIL;
3499
3500 if (!ImageList_GetImageInfo(This, i, &info))
3501 return E_FAIL;
3502
3503 return CopyRect(prc, &info.rcImage) ? S_OK : E_FAIL;
3504 }
3505
3506 static HRESULT WINAPI ImageListImpl_GetIconSize(IImageList *iface, int *cx,
3507 int *cy)
3508 {
3509 HIMAGELIST This = (HIMAGELIST) iface;
3510
3511 return ImageList_GetIconSize(This, cx, cy) ? S_OK : E_INVALIDARG;
3512 }
3513
3514 static HRESULT WINAPI ImageListImpl_SetIconSize(IImageList *iface, int cx,
3515 int cy)
3516 {
3517 return ImageList_SetIconSize((HIMAGELIST) iface, cx, cy) ? S_OK : E_FAIL;
3518 }
3519
3520 static HRESULT WINAPI ImageListImpl_GetImageCount(IImageList *iface, int *pi)
3521 {
3522 *pi = ImageList_GetImageCount((HIMAGELIST) iface);
3523 return S_OK;
3524 }
3525
3526 static HRESULT WINAPI ImageListImpl_SetImageCount(IImageList *iface,
3527 UINT uNewCount)
3528 {
3529 return ImageList_SetImageCount((HIMAGELIST) iface, uNewCount) ? S_OK : E_FAIL;
3530 }
3531
3532 static HRESULT WINAPI ImageListImpl_SetBkColor(IImageList *iface, COLORREF clrBk,
3533 COLORREF *pclr)
3534 {
3535 *pclr = ImageList_SetBkColor((HIMAGELIST) iface, clrBk);
3536 return S_OK;
3537 }
3538
3539 static HRESULT WINAPI ImageListImpl_GetBkColor(IImageList *iface, COLORREF *pclr)
3540 {
3541 *pclr = ImageList_GetBkColor((HIMAGELIST) iface);
3542 return S_OK;
3543 }
3544
3545 static HRESULT WINAPI ImageListImpl_BeginDrag(IImageList *iface, int iTrack,
3546 int dxHotspot, int dyHotspot)
3547 {
3548 return ImageList_BeginDrag((HIMAGELIST) iface, iTrack, dxHotspot, dyHotspot) ? S_OK : E_FAIL;
3549 }
3550
3551 static HRESULT WINAPI ImageListImpl_EndDrag(IImageList *iface)
3552 {
3553 ImageList_EndDrag();
3554 return S_OK;
3555 }
3556
3557 static HRESULT WINAPI ImageListImpl_DragEnter(IImageList *iface, HWND hwndLock,
3558 int x, int y)
3559 {
3560 return ImageList_DragEnter(hwndLock, x, y) ? S_OK : E_FAIL;
3561 }
3562
3563 static HRESULT WINAPI ImageListImpl_DragLeave(IImageList *iface, HWND hwndLock)
3564 {
3565 return ImageList_DragLeave(hwndLock) ? S_OK : E_FAIL;
3566 }
3567
3568 static HRESULT WINAPI ImageListImpl_DragMove(IImageList *iface, int x, int y)
3569 {
3570 return ImageList_DragMove(x, y) ? S_OK : E_FAIL;
3571 }
3572
3573 static HRESULT WINAPI ImageListImpl_SetDragCursorImage(IImageList *iface,
3574 IUnknown *punk, int iDrag, int dxHotspot, int dyHotspot)
3575 {
3576 IImageList *iml2 = NULL;
3577 HRESULT ret;
3578
3579 if (!punk)
3580 return E_FAIL;
3581
3582 /* TODO: Add test for IID_ImageList2 too */
3583 if (FAILED(IImageList_QueryInterface(punk, &IID_IImageList,
3584 (void **) &iml2)))
3585 return E_FAIL;
3586
3587 ret = ImageList_SetDragCursorImage((HIMAGELIST) iml2, iDrag, dxHotspot,
3588 dyHotspot);
3589
3590 IImageList_Release(iml2);
3591
3592 return ret ? S_OK : E_FAIL;
3593 }
3594
3595 static HRESULT WINAPI ImageListImpl_DragShowNolock(IImageList *iface, BOOL fShow)
3596 {
3597 return ImageList_DragShowNolock(fShow) ? S_OK : E_FAIL;
3598 }
3599
3600 static HRESULT WINAPI ImageListImpl_GetDragImage(IImageList *iface, POINT *ppt,
3601 POINT *pptHotspot, REFIID riid, PVOID *ppv)
3602 {
3603 HRESULT ret = E_FAIL;
3604 HIMAGELIST hNew;
3605
3606 if (!ppv)
3607 return E_FAIL;
3608
3609 hNew = ImageList_GetDragImage(ppt, pptHotspot);
3610
3611 /* Get the interface for the new image list */
3612 if (hNew)
3613 {
3614 IImageList *idrag = (IImageList*)hNew;
3615
3616 ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
3617 IImageList_Release(idrag);
3618 }
3619
3620 return ret;
3621 }
3622
3623 static HRESULT WINAPI ImageListImpl_GetItemFlags(IImageList *iface, int i,
3624 DWORD *dwFlags)
3625 {
3626 FIXME("STUB: %p %d %p\n", iface, i, dwFlags);
3627 return E_NOTIMPL;
3628 }
3629
3630 static HRESULT WINAPI ImageListImpl_GetOverlayImage(IImageList *iface, int iOverlay,
3631 int *piIndex)
3632 {
3633 HIMAGELIST This = (HIMAGELIST) iface;
3634 int i;
3635
3636 if ((iOverlay < 0) || (iOverlay > This->cCurImage))
3637 return E_FAIL;
3638
3639 for (i = 0; i < MAX_OVERLAYIMAGE; i++)
3640 {
3641 if (This->nOvlIdx[i] == iOverlay)
3642 {
3643 *piIndex = i + 1;
3644 return S_OK;
3645 }
3646 }
3647
3648 return E_FAIL;
3649 }
3650
3651
3652 static const IImageListVtbl ImageListImpl_Vtbl = {
3653 ImageListImpl_QueryInterface,
3654 ImageListImpl_AddRef,
3655 ImageListImpl_Release,
3656 ImageListImpl_Add,
3657 ImageListImpl_ReplaceIcon,
3658 ImageListImpl_SetOverlayImage,
3659 ImageListImpl_Replace,
3660 ImageListImpl_AddMasked,
3661 ImageListImpl_Draw,
3662 ImageListImpl_Remove,
3663 ImageListImpl_GetIcon,
3664 ImageListImpl_GetImageInfo,
3665 ImageListImpl_Copy,
3666 ImageListImpl_Merge,
3667 ImageListImpl_Clone,
3668 ImageListImpl_GetImageRect,
3669 ImageListImpl_GetIconSize,
3670 ImageListImpl_SetIconSize,
3671 ImageListImpl_GetImageCount,
3672 ImageListImpl_SetImageCount,
3673 ImageListImpl_SetBkColor,
3674 ImageListImpl_GetBkColor,
3675 ImageListImpl_BeginDrag,
3676 ImageListImpl_EndDrag,
3677 ImageListImpl_DragEnter,
3678 ImageListImpl_DragLeave,
3679 ImageListImpl_DragMove,
3680 ImageListImpl_SetDragCursorImage,
3681 ImageListImpl_DragShowNolock,
3682 ImageListImpl_GetDragImage,
3683 ImageListImpl_GetItemFlags,
3684 ImageListImpl_GetOverlayImage
3685 };
3686
3687 static BOOL is_valid(HIMAGELIST himl)
3688 {
3689 BOOL valid;
3690 __TRY
3691 {
3692 valid = himl && himl->lpVtbl == &ImageListImpl_Vtbl;
3693 }
3694 __EXCEPT_PAGE_FAULT
3695 {
3696 valid = FALSE;
3697 }
3698 __ENDTRY
3699 return valid;
3700 }
3701
3702 /*************************************************************************
3703 * HIMAGELIST_QueryInterface [COMCTL32.@]
3704 *
3705 * Returns a pointer to an IImageList or IImageList2 object for the given
3706 * HIMAGELIST.
3707 *
3708 * PARAMS
3709 * himl [I] Image list handle.
3710 * riid [I] Identifier of the requested interface.
3711 * ppv [O] Returns the address of the pointer requested, or NULL.
3712 *
3713 * RETURNS
3714 * Success: S_OK.
3715 * Failure: Error value.
3716 */
3717 HRESULT WINAPI
3718 HIMAGELIST_QueryInterface (HIMAGELIST himl, REFIID riid, void **ppv)
3719 {
3720 TRACE("(%p,%s,%p)\n", himl, debugstr_guid(riid), ppv);
3721 return IImageList_QueryInterface((IImageList *) himl, riid, ppv);
3722 }
3723
3724 static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv)
3725 {
3726 HIMAGELIST This;
3727 HRESULT ret;
3728
3729 TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
3730
3731 *ppv = NULL;
3732
3733 if (pUnkOuter) return CLASS_E_NOAGGREGATION;
3734
3735 This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct _IMAGELIST));
3736 if (!This) return E_OUTOFMEMORY;
3737
3738 This->lpVtbl = &ImageListImpl_Vtbl;
3739 This->ref = 1;
3740
3741 ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
3742 IUnknown_Release((IUnknown*)This);
3743
3744 return ret;
3745 }
Maarten's multimedia branch