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[reactos.git] / dll / win32 / comctl32 / imagelist.c
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 "imagelist.h"
56 #include "wine/debug.h"
57
58 WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
59
60
61 #define MAX_OVERLAYIMAGE 15
62
63 /* internal image list data used for Drag & Drop operations */
64 typedef struct
65 {
66 HWND hwnd;
67 HIMAGELIST himl;
68 /* position of the drag image relative to the window */
69 INT x;
70 INT y;
71 /* offset of the hotspot relative to the origin of the image */
72 INT dxHotspot;
73 INT dyHotspot;
74 /* is the drag image visible */
75 BOOL bShow;
76 /* saved background */
77 HBITMAP hbmBg;
78 } INTERNALDRAG;
79
80 static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0 };
81
82 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count);
83 static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv);
84 static inline BOOL is_valid(HIMAGELIST himl);
85
86 /*
87 * An imagelist with N images is tiled like this:
88 *
89 * N/4 ->
90 *
91 * 4 048C..
92 * 159D..
93 * | 26AE.N
94 * V 37BF.
95 */
96
97 #define TILE_COUNT 4
98
99 static inline UINT imagelist_height( UINT count )
100 {
101 return ((count + TILE_COUNT - 1)/TILE_COUNT);
102 }
103
104 static inline void imagelist_point_from_index( HIMAGELIST himl, UINT index, LPPOINT pt )
105 {
106 pt->x = (index%TILE_COUNT) * himl->cx;
107 pt->y = (index/TILE_COUNT) * himl->cy;
108 }
109
110 static inline void imagelist_get_bitmap_size( HIMAGELIST himl, UINT count, SIZE *sz )
111 {
112 sz->cx = himl->cx * TILE_COUNT;
113 sz->cy = imagelist_height( count ) * himl->cy;
114 }
115
116 /*
117 * imagelist_copy_images()
118 *
119 * Copies a block of count images from offset src in the list to offset dest.
120 * Images are copied a row at at time. Assumes hdcSrc and hdcDest are different.
121 */
122 static inline void imagelist_copy_images( HIMAGELIST himl, HDC hdcSrc, HDC hdcDest,
123 UINT src, UINT count, UINT dest )
124 {
125 POINT ptSrc, ptDest;
126 SIZE sz;
127 UINT i;
128
129 for ( i=0; i<TILE_COUNT; i++ )
130 {
131 imagelist_point_from_index( himl, src+i, &ptSrc );
132 imagelist_point_from_index( himl, dest+i, &ptDest );
133 sz.cx = himl->cx;
134 sz.cy = himl->cy * imagelist_height( count - i );
135
136 BitBlt( hdcDest, ptDest.x, ptDest.y, sz.cx, sz.cy,
137 hdcSrc, ptSrc.x, ptSrc.y, SRCCOPY );
138 }
139 }
140
141 /* add images with an alpha channel when the image list is 32 bpp */
142 static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
143 int width, int height, HBITMAP hbmImage, HBITMAP hbmMask )
144 {
145 BOOL ret = FALSE;
146 HDC hdcMask = 0;
147 BITMAP bm;
148 BITMAPINFO *info, *mask_info = NULL;
149 DWORD *bits = NULL;
150 BYTE *mask_bits = NULL;
151 int i, j, n;
152 POINT pt;
153 DWORD mask_width;
154
155 if (!GetObjectW( hbmImage, sizeof(bm), &bm )) return FALSE;
156
157 /* if neither the imagelist nor the source bitmap can have an alpha channel, bail out now */
158 if (himl->uBitsPixel != 32 && bm.bmBitsPixel != 32) return FALSE;
159
160 SelectObject( hdc, hbmImage );
161 mask_width = (bm.bmWidth + 31) / 32 * 4;
162
163 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
164 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
165 info->bmiHeader.biWidth = bm.bmWidth;
166 info->bmiHeader.biHeight = -height;
167 info->bmiHeader.biPlanes = 1;
168 info->bmiHeader.biBitCount = 32;
169 info->bmiHeader.biCompression = BI_RGB;
170 info->bmiHeader.biSizeImage = bm.bmWidth * height * 4;
171 info->bmiHeader.biXPelsPerMeter = 0;
172 info->bmiHeader.biYPelsPerMeter = 0;
173 info->bmiHeader.biClrUsed = 0;
174 info->bmiHeader.biClrImportant = 0;
175 if (!(bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
176 if (!GetDIBits( hdc, hbmImage, 0, height, bits, info, DIB_RGB_COLORS )) goto done;
177
178 if (hbmMask)
179 {
180 if (!(mask_info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[2] ))))
181 goto done;
182 mask_info->bmiHeader = info->bmiHeader;
183 mask_info->bmiHeader.biBitCount = 1;
184 mask_info->bmiHeader.biSizeImage = mask_width * height;
185 if (!(mask_bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
186 if (!GetDIBits( hdc, hbmMask, 0, height, mask_bits, mask_info, DIB_RGB_COLORS )) goto done;
187 hdcMask = CreateCompatibleDC( 0 );
188 SelectObject( hdcMask, hbmMask );
189 }
190
191 for (n = 0; n < count; n++)
192 {
193 int has_alpha = 0;
194
195 imagelist_point_from_index( himl, pos + n, &pt );
196
197 /* check if bitmap has an alpha channel */
198 for (i = 0; i < height && !has_alpha; i++)
199 for (j = n * width; j < (n + 1) * width; j++)
200 if ((has_alpha = ((bits[i * bm.bmWidth + j] & 0xff000000) != 0))) break;
201
202 if (!has_alpha) /* generate alpha channel from the mask */
203 {
204 for (i = 0; i < height; i++)
205 for (j = n * width; j < (n + 1) * width; j++)
206 if (!mask_bits || !((mask_bits[i * mask_width + j / 8] << (j % 8)) & 0x80))
207 bits[i * bm.bmWidth + j] |= 0xff000000;
208 else
209 bits[i * bm.bmWidth + j] = 0;
210 if (hdcMask) StretchBlt( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
211 hdcMask, n * width, 0, width, height, SRCCOPY );
212 }
213 else
214 {
215 if (himl->has_alpha) himl->has_alpha[pos + n] = 1;
216
217 if (mask_info && himl->hbmMask) /* generate the mask from the alpha channel */
218 {
219 for (i = 0; i < height; i++)
220 for (j = n * width; j < (n + 1) * width; j++)
221 if ((bits[i * bm.bmWidth + j] >> 24) > 25) /* more than 10% alpha */
222 mask_bits[i * mask_width + j / 8] &= ~(0x80 >> (j % 8));
223 else
224 mask_bits[i * mask_width + j / 8] |= 0x80 >> (j % 8);
225 StretchDIBits( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
226 n * width, 0, width, height, mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY );
227 }
228 }
229 StretchDIBits( himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
230 n * width, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
231
232 }
233 ret = TRUE;
234
235 done:
236 if (hdcMask) DeleteDC( hdcMask );
237 HeapFree( GetProcessHeap(), 0, info );
238 HeapFree( GetProcessHeap(), 0, mask_info );
239 HeapFree( GetProcessHeap(), 0, bits );
240 HeapFree( GetProcessHeap(), 0, mask_bits );
241 return ret;
242 }
243
244 /*************************************************************************
245 * IMAGELIST_InternalExpandBitmaps [Internal]
246 *
247 * Expands the bitmaps of an image list by the given number of images.
248 *
249 * PARAMS
250 * himl [I] handle to image list
251 * nImageCount [I] number of images to add
252 *
253 * RETURNS
254 * nothing
255 *
256 * NOTES
257 * This function CANNOT be used to reduce the number of images.
258 */
259 static void
260 IMAGELIST_InternalExpandBitmaps(HIMAGELIST himl, INT nImageCount)
261 {
262 HDC hdcBitmap;
263 HBITMAP hbmNewBitmap, hbmNull;
264 INT nNewCount;
265 SIZE sz;
266
267 TRACE("%p has %d allocated %d images\n", himl, himl->cCurImage, himl->cMaxImage);
268
269 if (himl->cCurImage + nImageCount <= himl->cMaxImage)
270 return;
271
272 nNewCount = himl->cCurImage + max(nImageCount, himl->cGrow) + 1;
273
274 imagelist_get_bitmap_size(himl, nNewCount, &sz);
275
276 TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, sz.cx, sz.cy, nNewCount);
277 hdcBitmap = CreateCompatibleDC (0);
278
279 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
280
281 if (hbmNewBitmap == 0)
282 ERR("creating new image bitmap (x=%d y=%d)!\n", sz.cx, sz.cy);
283
284 if (himl->cCurImage)
285 {
286 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
287 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
288 himl->hdcImage, 0, 0, SRCCOPY);
289 SelectObject (hdcBitmap, hbmNull);
290 }
291 SelectObject (himl->hdcImage, hbmNewBitmap);
292 DeleteObject (himl->hbmImage);
293 himl->hbmImage = hbmNewBitmap;
294
295 if (himl->flags & ILC_MASK)
296 {
297 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
298
299 if (hbmNewBitmap == 0)
300 ERR("creating new mask bitmap!\n");
301
302 if(himl->cCurImage)
303 {
304 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
305 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
306 himl->hdcMask, 0, 0, SRCCOPY);
307 SelectObject (hdcBitmap, hbmNull);
308 }
309 SelectObject (himl->hdcMask, hbmNewBitmap);
310 DeleteObject (himl->hbmMask);
311 himl->hbmMask = hbmNewBitmap;
312 }
313
314 if (himl->has_alpha)
315 {
316 char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
317 if (new_alpha) himl->has_alpha = new_alpha;
318 else
319 {
320 HeapFree( GetProcessHeap(), 0, himl->has_alpha );
321 himl->has_alpha = NULL;
322 }
323 }
324
325 himl->cMaxImage = nNewCount;
326
327 DeleteDC (hdcBitmap);
328 }
329
330
331 /*************************************************************************
332 * ImageList_Add [COMCTL32.@]
333 *
334 * Add an image or images to an image list.
335 *
336 * PARAMS
337 * himl [I] handle to image list
338 * hbmImage [I] handle to image bitmap
339 * hbmMask [I] handle to mask bitmap
340 *
341 * RETURNS
342 * Success: Index of the first new image.
343 * Failure: -1
344 */
345
346 INT WINAPI
347 ImageList_Add (HIMAGELIST himl, HBITMAP hbmImage, HBITMAP hbmMask)
348 {
349 HDC hdcBitmap, hdcTemp = 0;
350 INT nFirstIndex, nImageCount, i;
351 BITMAP bmp;
352 POINT pt;
353
354 TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
355 if (!is_valid(himl))
356 return -1;
357
358 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
359 return -1;
360
361 TRACE("himl %p, cCurImage %d, cMaxImage %d, cGrow %d, cx %d, cy %d\n",
362 himl, himl->cCurImage, himl->cMaxImage, himl->cGrow, himl->cx, himl->cy);
363
364 nImageCount = bmp.bmWidth / himl->cx;
365
366 TRACE("%p has %d images (%d x %d)\n", hbmImage, nImageCount, bmp.bmWidth, bmp.bmHeight);
367
368 IMAGELIST_InternalExpandBitmaps(himl, nImageCount);
369
370 hdcBitmap = CreateCompatibleDC(0);
371
372 SelectObject(hdcBitmap, hbmImage);
373
374 if (add_with_alpha( himl, hdcBitmap, himl->cCurImage, nImageCount,
375 himl->cx, min( himl->cy, bmp.bmHeight), hbmImage, hbmMask ))
376 goto done;
377
378 if (himl->hbmMask)
379 {
380 hdcTemp = CreateCompatibleDC(0);
381 SelectObject(hdcTemp, hbmMask);
382 }
383
384 for (i=0; i<nImageCount; i++)
385 {
386 imagelist_point_from_index( himl, himl->cCurImage + i, &pt );
387
388 /* Copy result to the imagelist
389 */
390 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
391 hdcBitmap, i*himl->cx, 0, SRCCOPY );
392
393 if (!himl->hbmMask)
394 continue;
395
396 BitBlt( himl->hdcMask, pt.x, pt.y, himl->cx, bmp.bmHeight,
397 hdcTemp, i*himl->cx, 0, SRCCOPY );
398
399 /* Remove the background from the image
400 */
401 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
402 himl->hdcMask, pt.x, pt.y, 0x220326 ); /* NOTSRCAND */
403 }
404 if (hdcTemp) DeleteDC(hdcTemp);
405
406 done:
407 DeleteDC(hdcBitmap);
408
409 nFirstIndex = himl->cCurImage;
410 himl->cCurImage += nImageCount;
411
412 return nFirstIndex;
413 }
414
415
416 /*************************************************************************
417 * ImageList_AddIcon [COMCTL32.@]
418 *
419 * Adds an icon to an image list.
420 *
421 * PARAMS
422 * himl [I] handle to image list
423 * hIcon [I] handle to icon
424 *
425 * RETURNS
426 * Success: index of the new image
427 * Failure: -1
428 */
429 #undef ImageList_AddIcon
430 INT WINAPI ImageList_AddIcon (HIMAGELIST himl, HICON hIcon)
431 {
432 return ImageList_ReplaceIcon (himl, -1, hIcon);
433 }
434
435
436 /*************************************************************************
437 * ImageList_AddMasked [COMCTL32.@]
438 *
439 * Adds an image or images to an image list and creates a mask from the
440 * specified bitmap using the mask color.
441 *
442 * PARAMS
443 * himl [I] handle to image list.
444 * hBitmap [I] handle to bitmap
445 * clrMask [I] mask color.
446 *
447 * RETURNS
448 * Success: Index of the first new image.
449 * Failure: -1
450 */
451
452 INT WINAPI
453 ImageList_AddMasked (HIMAGELIST himl, HBITMAP hBitmap, COLORREF clrMask)
454 {
455 HDC hdcMask, hdcBitmap;
456 INT ret;
457 BITMAP bmp;
458 HBITMAP hMaskBitmap;
459 COLORREF bkColor;
460
461 TRACE("himl=%p hbitmap=%p clrmask=%x\n", himl, hBitmap, clrMask);
462 if (!is_valid(himl))
463 return -1;
464
465 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bmp))
466 return -1;
467
468 hdcBitmap = CreateCompatibleDC(0);
469 SelectObject(hdcBitmap, hBitmap);
470
471 /* Create a temp Mask so we can remove the background of the Image */
472 hdcMask = CreateCompatibleDC(0);
473 hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
474 SelectObject(hdcMask, hMaskBitmap);
475
476 /* create monochrome image to the mask bitmap */
477 bkColor = (clrMask != CLR_DEFAULT) ? clrMask : GetPixel (hdcBitmap, 0, 0);
478 SetBkColor (hdcBitmap, bkColor);
479 BitBlt (hdcMask, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
480
481 SetBkColor(hdcBitmap, RGB(255,255,255));
482
483 /*
484 * Remove the background from the image
485 *
486 * WINDOWS BUG ALERT!!!!!!
487 * The statement below should not be done in common practice
488 * but this is how ImageList_AddMasked works in Windows.
489 * It overwrites the original bitmap passed, this was discovered
490 * by using the same bitmap to iterate the different styles
491 * on windows where it failed (BUT ImageList_Add is OK)
492 * This is here in case some apps rely on this bug
493 *
494 * Blt mode 0x220326 is NOTSRCAND
495 */
496 BitBlt(hdcBitmap, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcMask, 0, 0, 0x220326);
497
498 DeleteDC(hdcBitmap);
499 DeleteDC(hdcMask);
500
501 ret = ImageList_Add( himl, hBitmap, hMaskBitmap );
502
503 DeleteObject(hMaskBitmap);
504 return ret;
505 }
506
507
508 /*************************************************************************
509 * ImageList_BeginDrag [COMCTL32.@]
510 *
511 * Creates a temporary image list that contains one image. It will be used
512 * as a drag image.
513 *
514 * PARAMS
515 * himlTrack [I] handle to the source image list
516 * iTrack [I] index of the drag image in the source image list
517 * dxHotspot [I] X position of the hot spot of the drag image
518 * dyHotspot [I] Y position of the hot spot of the drag image
519 *
520 * RETURNS
521 * Success: TRUE
522 * Failure: FALSE
523 */
524
525 BOOL WINAPI
526 ImageList_BeginDrag (HIMAGELIST himlTrack, INT iTrack,
527 INT dxHotspot, INT dyHotspot)
528 {
529 INT cx, cy;
530
531 TRACE("(himlTrack=%p iTrack=%d dx=%d dy=%d)\n", himlTrack, iTrack,
532 dxHotspot, dyHotspot);
533
534 if (!is_valid(himlTrack))
535 return FALSE;
536
537 if (InternalDrag.himl)
538 ImageList_EndDrag ();
539
540 cx = himlTrack->cx;
541 cy = himlTrack->cy;
542
543 InternalDrag.himl = ImageList_Create (cx, cy, himlTrack->flags, 1, 1);
544 if (InternalDrag.himl == NULL) {
545 WARN("Error creating drag image list!\n");
546 return FALSE;
547 }
548
549 InternalDrag.dxHotspot = dxHotspot;
550 InternalDrag.dyHotspot = dyHotspot;
551
552 /* copy image */
553 BitBlt (InternalDrag.himl->hdcImage, 0, 0, cx, cy, himlTrack->hdcImage, iTrack * cx, 0, SRCCOPY);
554
555 /* copy mask */
556 BitBlt (InternalDrag.himl->hdcMask, 0, 0, cx, cy, himlTrack->hdcMask, iTrack * cx, 0, SRCCOPY);
557
558 InternalDrag.himl->cCurImage = 1;
559
560 return TRUE;
561 }
562
563
564 /*************************************************************************
565 * ImageList_Copy [COMCTL32.@]
566 *
567 * Copies an image of the source image list to an image of the
568 * destination image list. Images can be copied or swapped.
569 *
570 * PARAMS
571 * himlDst [I] handle to the destination image list
572 * iDst [I] destination image index.
573 * himlSrc [I] handle to the source image list
574 * iSrc [I] source image index
575 * uFlags [I] flags for the copy operation
576 *
577 * RETURNS
578 * Success: TRUE
579 * Failure: FALSE
580 *
581 * NOTES
582 * Copying from one image list to another is possible. The original
583 * implementation just copies or swaps within one image list.
584 * Could this feature become a bug??? ;-)
585 */
586
587 BOOL WINAPI
588 ImageList_Copy (HIMAGELIST himlDst, INT iDst, HIMAGELIST himlSrc,
589 INT iSrc, UINT uFlags)
590 {
591 POINT ptSrc, ptDst;
592
593 TRACE("himlDst=%p iDst=%d himlSrc=%p iSrc=%d\n", himlDst, iDst, himlSrc, iSrc);
594
595 if (!is_valid(himlSrc) || !is_valid(himlDst))
596 return FALSE;
597 if ((iDst < 0) || (iDst >= himlDst->cCurImage))
598 return FALSE;
599 if ((iSrc < 0) || (iSrc >= himlSrc->cCurImage))
600 return FALSE;
601
602 imagelist_point_from_index( himlDst, iDst, &ptDst );
603 imagelist_point_from_index( himlSrc, iSrc, &ptSrc );
604
605 if (uFlags & ILCF_SWAP) {
606 /* swap */
607 HDC hdcBmp;
608 HBITMAP hbmTempImage, hbmTempMask;
609
610 hdcBmp = CreateCompatibleDC (0);
611
612 /* create temporary bitmaps */
613 hbmTempImage = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
614 himlSrc->uBitsPixel, NULL);
615 hbmTempMask = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
616 1, NULL);
617
618 /* copy (and stretch) destination to temporary bitmaps.(save) */
619 /* image */
620 SelectObject (hdcBmp, hbmTempImage);
621 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
622 himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
623 SRCCOPY);
624 /* mask */
625 SelectObject (hdcBmp, hbmTempMask);
626 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
627 himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
628 SRCCOPY);
629
630 /* copy (and stretch) source to destination */
631 /* image */
632 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
633 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
634 SRCCOPY);
635 /* mask */
636 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
637 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
638 SRCCOPY);
639
640 /* copy (without stretching) temporary bitmaps to source (restore) */
641 /* mask */
642 BitBlt (himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
643 hdcBmp, 0, 0, SRCCOPY);
644
645 /* image */
646 BitBlt (himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
647 hdcBmp, 0, 0, SRCCOPY);
648 /* delete temporary bitmaps */
649 DeleteObject (hbmTempMask);
650 DeleteObject (hbmTempImage);
651 DeleteDC(hdcBmp);
652 }
653 else {
654 /* copy image */
655 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
656 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
657 SRCCOPY);
658
659 /* copy mask */
660 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
661 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
662 SRCCOPY);
663 }
664
665 return TRUE;
666 }
667
668
669 /*************************************************************************
670 * ImageList_Create [COMCTL32.@]
671 *
672 * Creates a new image list.
673 *
674 * PARAMS
675 * cx [I] image height
676 * cy [I] image width
677 * flags [I] creation flags
678 * cInitial [I] initial number of images in the image list
679 * cGrow [I] number of images by which image list grows
680 *
681 * RETURNS
682 * Success: Handle to the created image list
683 * Failure: NULL
684 */
685 HIMAGELIST WINAPI
686 ImageList_Create (INT cx, INT cy, UINT flags,
687 INT cInitial, INT cGrow)
688 {
689 HIMAGELIST himl;
690 INT nCount;
691 HBITMAP hbmTemp;
692 UINT ilc = (flags & 0xFE);
693 static const WORD aBitBlend25[] =
694 {0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
695
696 static const WORD aBitBlend50[] =
697 {0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
698
699 TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
700
701 /* Create the IImageList interface for the image list */
702 if (FAILED(ImageListImpl_CreateInstance(NULL, &IID_IImageList, (void **)&himl)))
703 return NULL;
704
705 cGrow = (cGrow < 4) ? 4 : (cGrow + 3) & ~3;
706
707 himl->cx = cx;
708 himl->cy = cy;
709 himl->flags = flags;
710 himl->cMaxImage = cInitial + 1;
711 himl->cInitial = cInitial;
712 himl->cGrow = cGrow;
713 himl->clrFg = CLR_DEFAULT;
714 himl->clrBk = CLR_NONE;
715
716 /* initialize overlay mask indices */
717 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
718 himl->nOvlIdx[nCount] = -1;
719
720 /* Create Image & Mask DCs */
721 himl->hdcImage = CreateCompatibleDC (0);
722 if (!himl->hdcImage)
723 goto cleanup;
724 if (himl->flags & ILC_MASK){
725 himl->hdcMask = CreateCompatibleDC(0);
726 if (!himl->hdcMask)
727 goto cleanup;
728 }
729
730 /* Default to ILC_COLOR4 if none of the ILC_COLOR* flags are specified */
731 if (ilc == ILC_COLOR)
732 ilc = ILC_COLOR4;
733
734 if (ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32)
735 himl->uBitsPixel = ilc;
736 else
737 himl->uBitsPixel = (UINT)GetDeviceCaps (himl->hdcImage, BITSPIXEL);
738
739 if (himl->cMaxImage > 0) {
740 himl->hbmImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
741 SelectObject(himl->hdcImage, himl->hbmImage);
742 } else
743 himl->hbmImage = 0;
744
745 if ((himl->cMaxImage > 0) && (himl->flags & ILC_MASK)) {
746 SIZE sz;
747
748 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
749 himl->hbmMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
750 if (himl->hbmMask == 0) {
751 ERR("Error creating mask bitmap!\n");
752 goto cleanup;
753 }
754 SelectObject(himl->hdcMask, himl->hbmMask);
755 }
756 else
757 himl->hbmMask = 0;
758
759 if (himl->uBitsPixel == 32)
760 himl->has_alpha = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->cMaxImage );
761 else
762 himl->has_alpha = NULL;
763
764 /* create blending brushes */
765 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend25);
766 himl->hbrBlend25 = CreatePatternBrush (hbmTemp);
767 DeleteObject (hbmTemp);
768
769 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend50);
770 himl->hbrBlend50 = CreatePatternBrush (hbmTemp);
771 DeleteObject (hbmTemp);
772
773 TRACE("created imagelist %p\n", himl);
774 return himl;
775
776 cleanup:
777 ImageList_Destroy(himl);
778 return NULL;
779 }
780
781
782 /*************************************************************************
783 * ImageList_Destroy [COMCTL32.@]
784 *
785 * Destroys an image list.
786 *
787 * PARAMS
788 * himl [I] handle to image list
789 *
790 * RETURNS
791 * Success: TRUE
792 * Failure: FALSE
793 */
794
795 BOOL WINAPI
796 ImageList_Destroy (HIMAGELIST himl)
797 {
798 if (!is_valid(himl))
799 return FALSE;
800
801 IImageList_Release((IImageList *) himl);
802 return TRUE;
803 }
804
805
806 /*************************************************************************
807 * ImageList_DragEnter [COMCTL32.@]
808 *
809 * Locks window update and displays the drag image at the given position.
810 *
811 * PARAMS
812 * hwndLock [I] handle of the window that owns the drag image.
813 * x [I] X position of the drag image.
814 * y [I] Y position of the drag image.
815 *
816 * RETURNS
817 * Success: TRUE
818 * Failure: FALSE
819 *
820 * NOTES
821 * The position of the drag image is relative to the window, not
822 * the client area.
823 */
824
825 BOOL WINAPI
826 ImageList_DragEnter (HWND hwndLock, INT x, INT y)
827 {
828 TRACE("(hwnd=%p x=%d y=%d)\n", hwndLock, x, y);
829
830 if (!is_valid(InternalDrag.himl))
831 return FALSE;
832
833 if (hwndLock)
834 InternalDrag.hwnd = hwndLock;
835 else
836 InternalDrag.hwnd = GetDesktopWindow ();
837
838 InternalDrag.x = x;
839 InternalDrag.y = y;
840
841 /* draw the drag image and save the background */
842 if (!ImageList_DragShowNolock(TRUE)) {
843 return FALSE;
844 }
845
846 return TRUE;
847 }
848
849
850 /*************************************************************************
851 * ImageList_DragLeave [COMCTL32.@]
852 *
853 * Unlocks window update and hides the drag image.
854 *
855 * PARAMS
856 * hwndLock [I] handle of the window that owns the drag image.
857 *
858 * RETURNS
859 * Success: TRUE
860 * Failure: FALSE
861 */
862
863 BOOL WINAPI
864 ImageList_DragLeave (HWND hwndLock)
865 {
866 /* As we don't save drag info in the window this can lead to problems if
867 an app does not supply the same window as DragEnter */
868 /* if (hwndLock)
869 InternalDrag.hwnd = hwndLock;
870 else
871 InternalDrag.hwnd = GetDesktopWindow (); */
872 if(!hwndLock)
873 hwndLock = GetDesktopWindow();
874 if(InternalDrag.hwnd != hwndLock)
875 FIXME("DragLeave hWnd != DragEnter hWnd\n");
876
877 ImageList_DragShowNolock (FALSE);
878
879 return TRUE;
880 }
881
882
883 /*************************************************************************
884 * ImageList_InternalDragDraw [Internal]
885 *
886 * Draws the drag image.
887 *
888 * PARAMS
889 * hdc [I] device context to draw into.
890 * x [I] X position of the drag image.
891 * y [I] Y position of the drag image.
892 *
893 * RETURNS
894 * Success: TRUE
895 * Failure: FALSE
896 *
897 * NOTES
898 * The position of the drag image is relative to the window, not
899 * the client area.
900 *
901 */
902
903 static inline void
904 ImageList_InternalDragDraw (HDC hdc, INT x, INT y)
905 {
906 IMAGELISTDRAWPARAMS imldp;
907
908 ZeroMemory (&imldp, sizeof(imldp));
909 imldp.cbSize = sizeof(imldp);
910 imldp.himl = InternalDrag.himl;
911 imldp.i = 0;
912 imldp.hdcDst = hdc,
913 imldp.x = x;
914 imldp.y = y;
915 imldp.rgbBk = CLR_DEFAULT;
916 imldp.rgbFg = CLR_DEFAULT;
917 imldp.fStyle = ILD_NORMAL;
918 imldp.fState = ILS_ALPHA;
919 imldp.Frame = 192;
920 ImageList_DrawIndirect (&imldp);
921 }
922
923 /*************************************************************************
924 * ImageList_DragMove [COMCTL32.@]
925 *
926 * Moves the drag image.
927 *
928 * PARAMS
929 * x [I] X position of the drag image.
930 * y [I] Y position of the drag image.
931 *
932 * RETURNS
933 * Success: TRUE
934 * Failure: FALSE
935 *
936 * NOTES
937 * The position of the drag image is relative to the window, not
938 * the client area.
939 */
940
941 BOOL WINAPI
942 ImageList_DragMove (INT x, INT y)
943 {
944 TRACE("(x=%d y=%d)\n", x, y);
945
946 if (!is_valid(InternalDrag.himl))
947 return FALSE;
948
949 /* draw/update the drag image */
950 if (InternalDrag.bShow) {
951 HDC hdcDrag;
952 HDC hdcOffScreen;
953 HDC hdcBg;
954 HBITMAP hbmOffScreen;
955 INT origNewX, origNewY;
956 INT origOldX, origOldY;
957 INT origRegX, origRegY;
958 INT sizeRegX, sizeRegY;
959
960
961 /* calculate the update region */
962 origNewX = x - InternalDrag.dxHotspot;
963 origNewY = y - InternalDrag.dyHotspot;
964 origOldX = InternalDrag.x - InternalDrag.dxHotspot;
965 origOldY = InternalDrag.y - InternalDrag.dyHotspot;
966 origRegX = min(origNewX, origOldX);
967 origRegY = min(origNewY, origOldY);
968 sizeRegX = InternalDrag.himl->cx + abs(x - InternalDrag.x);
969 sizeRegY = InternalDrag.himl->cy + abs(y - InternalDrag.y);
970
971 hdcDrag = GetDCEx(InternalDrag.hwnd, 0,
972 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
973 hdcOffScreen = CreateCompatibleDC(hdcDrag);
974 hdcBg = CreateCompatibleDC(hdcDrag);
975
976 hbmOffScreen = CreateCompatibleBitmap(hdcDrag, sizeRegX, sizeRegY);
977 SelectObject(hdcOffScreen, hbmOffScreen);
978 SelectObject(hdcBg, InternalDrag.hbmBg);
979
980 /* get the actual background of the update region */
981 BitBlt(hdcOffScreen, 0, 0, sizeRegX, sizeRegY, hdcDrag,
982 origRegX, origRegY, SRCCOPY);
983 /* erase the old image */
984 BitBlt(hdcOffScreen, origOldX - origRegX, origOldY - origRegY,
985 InternalDrag.himl->cx, InternalDrag.himl->cy, hdcBg, 0, 0,
986 SRCCOPY);
987 /* save the background */
988 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
989 hdcOffScreen, origNewX - origRegX, origNewY - origRegY, SRCCOPY);
990 /* draw the image */
991 ImageList_InternalDragDraw(hdcOffScreen, origNewX - origRegX,
992 origNewY - origRegY);
993 /* draw the update region to the screen */
994 BitBlt(hdcDrag, origRegX, origRegY, sizeRegX, sizeRegY,
995 hdcOffScreen, 0, 0, SRCCOPY);
996
997 DeleteDC(hdcBg);
998 DeleteDC(hdcOffScreen);
999 DeleteObject(hbmOffScreen);
1000 ReleaseDC(InternalDrag.hwnd, hdcDrag);
1001 }
1002
1003 /* update the image position */
1004 InternalDrag.x = x;
1005 InternalDrag.y = y;
1006
1007 return TRUE;
1008 }
1009
1010
1011 /*************************************************************************
1012 * ImageList_DragShowNolock [COMCTL32.@]
1013 *
1014 * Shows or hides the drag image.
1015 *
1016 * PARAMS
1017 * bShow [I] TRUE shows the drag image, FALSE hides it.
1018 *
1019 * RETURNS
1020 * Success: TRUE
1021 * Failure: FALSE
1022 */
1023
1024 BOOL WINAPI
1025 ImageList_DragShowNolock (BOOL bShow)
1026 {
1027 HDC hdcDrag;
1028 HDC hdcBg;
1029 INT x, y;
1030
1031 if (!is_valid(InternalDrag.himl))
1032 return FALSE;
1033
1034 TRACE("bShow=0x%X!\n", bShow);
1035
1036 /* DragImage is already visible/hidden */
1037 if ((InternalDrag.bShow && bShow) || (!InternalDrag.bShow && !bShow)) {
1038 return FALSE;
1039 }
1040
1041 /* position of the origin of the DragImage */
1042 x = InternalDrag.x - InternalDrag.dxHotspot;
1043 y = InternalDrag.y - InternalDrag.dyHotspot;
1044
1045 hdcDrag = GetDCEx (InternalDrag.hwnd, 0,
1046 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
1047 if (!hdcDrag) {
1048 return FALSE;
1049 }
1050
1051 hdcBg = CreateCompatibleDC(hdcDrag);
1052 if (!InternalDrag.hbmBg) {
1053 InternalDrag.hbmBg = CreateCompatibleBitmap(hdcDrag,
1054 InternalDrag.himl->cx, InternalDrag.himl->cy);
1055 }
1056 SelectObject(hdcBg, InternalDrag.hbmBg);
1057
1058 if (bShow) {
1059 /* save the background */
1060 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
1061 hdcDrag, x, y, SRCCOPY);
1062 /* show the image */
1063 ImageList_InternalDragDraw(hdcDrag, x, y);
1064 } else {
1065 /* hide the image */
1066 BitBlt(hdcDrag, x, y, InternalDrag.himl->cx, InternalDrag.himl->cy,
1067 hdcBg, 0, 0, SRCCOPY);
1068 }
1069
1070 InternalDrag.bShow = !InternalDrag.bShow;
1071
1072 DeleteDC(hdcBg);
1073 ReleaseDC (InternalDrag.hwnd, hdcDrag);
1074 return TRUE;
1075 }
1076
1077
1078 /*************************************************************************
1079 * ImageList_Draw [COMCTL32.@]
1080 *
1081 * Draws an image.
1082 *
1083 * PARAMS
1084 * himl [I] handle to image list
1085 * i [I] image index
1086 * hdc [I] handle to device context
1087 * x [I] x position
1088 * y [I] y position
1089 * fStyle [I] drawing flags
1090 *
1091 * RETURNS
1092 * Success: TRUE
1093 * Failure: FALSE
1094 *
1095 * SEE
1096 * ImageList_DrawEx.
1097 */
1098
1099 BOOL WINAPI
1100 ImageList_Draw (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y, UINT fStyle)
1101 {
1102 return ImageList_DrawEx (himl, i, hdc, x, y, 0, 0,
1103 CLR_DEFAULT, CLR_DEFAULT, fStyle);
1104 }
1105
1106
1107 /*************************************************************************
1108 * ImageList_DrawEx [COMCTL32.@]
1109 *
1110 * Draws an image and allows to use extended drawing features.
1111 *
1112 * PARAMS
1113 * himl [I] handle to image list
1114 * i [I] image index
1115 * hdc [I] handle to device context
1116 * x [I] X position
1117 * y [I] Y position
1118 * dx [I] X offset
1119 * dy [I] Y offset
1120 * rgbBk [I] background color
1121 * rgbFg [I] foreground color
1122 * fStyle [I] drawing flags
1123 *
1124 * RETURNS
1125 * Success: TRUE
1126 * Failure: FALSE
1127 *
1128 * NOTES
1129 * Calls ImageList_DrawIndirect.
1130 *
1131 * SEE
1132 * ImageList_DrawIndirect.
1133 */
1134
1135 BOOL WINAPI
1136 ImageList_DrawEx (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y,
1137 INT dx, INT dy, COLORREF rgbBk, COLORREF rgbFg,
1138 UINT fStyle)
1139 {
1140 IMAGELISTDRAWPARAMS imldp;
1141
1142 ZeroMemory (&imldp, sizeof(imldp));
1143 imldp.cbSize = sizeof(imldp);
1144 imldp.himl = himl;
1145 imldp.i = i;
1146 imldp.hdcDst = hdc,
1147 imldp.x = x;
1148 imldp.y = y;
1149 imldp.cx = dx;
1150 imldp.cy = dy;
1151 imldp.rgbBk = rgbBk;
1152 imldp.rgbFg = rgbFg;
1153 imldp.fStyle = fStyle;
1154
1155 return ImageList_DrawIndirect (&imldp);
1156 }
1157
1158
1159 static BOOL alpha_blend_image( HIMAGELIST himl, HDC dest_dc, int dest_x, int dest_y,
1160 int src_x, int src_y, int cx, int cy, BLENDFUNCTION func )
1161 {
1162 BOOL ret = FALSE;
1163 HDC hdc;
1164 HBITMAP bmp = 0, mask = 0;
1165 BITMAPINFO *info;
1166 void *bits, *mask_bits;
1167 unsigned int *ptr;
1168 int i, j;
1169
1170 if (!(hdc = CreateCompatibleDC( 0 ))) return FALSE;
1171 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
1172 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1173 info->bmiHeader.biWidth = cx;
1174 info->bmiHeader.biHeight = cy;
1175 info->bmiHeader.biPlanes = 1;
1176 info->bmiHeader.biBitCount = 32;
1177 info->bmiHeader.biCompression = BI_RGB;
1178 info->bmiHeader.biSizeImage = cx * cy * 4;
1179 info->bmiHeader.biXPelsPerMeter = 0;
1180 info->bmiHeader.biYPelsPerMeter = 0;
1181 info->bmiHeader.biClrUsed = 0;
1182 info->bmiHeader.biClrImportant = 0;
1183 if (!(bmp = CreateDIBSection( himl->hdcImage, info, DIB_RGB_COLORS, &bits, 0, 0 ))) goto done;
1184 SelectObject( hdc, bmp );
1185 BitBlt( hdc, 0, 0, cx, cy, himl->hdcImage, src_x, src_y, SRCCOPY );
1186
1187 if (himl->uBitsPixel == 32) /* we already have an alpha channel in this case */
1188 {
1189 /* pre-multiply by the alpha channel */
1190 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1191 {
1192 DWORD alpha = *ptr >> 24;
1193 *ptr = ((*ptr & 0xff000000) |
1194 (((*ptr & 0x00ff0000) * alpha / 255) & 0x00ff0000) |
1195 (((*ptr & 0x0000ff00) * alpha / 255) & 0x0000ff00) |
1196 (((*ptr & 0x000000ff) * alpha / 255)));
1197 }
1198 }
1199 else if (himl->hbmMask)
1200 {
1201 unsigned int width_bytes = (cx + 31) / 32 * 4;
1202 /* generate alpha channel from the mask */
1203 info->bmiHeader.biBitCount = 1;
1204 info->bmiHeader.biSizeImage = width_bytes * cy;
1205 if (!(mask = CreateDIBSection( himl->hdcMask, info, DIB_RGB_COLORS, &mask_bits, 0, 0 )))
1206 goto done;
1207 SelectObject( hdc, mask );
1208 BitBlt( hdc, 0, 0, cx, cy, himl->hdcMask, src_x, src_y, SRCCOPY );
1209 SelectObject( hdc, bmp );
1210 for (i = 0, ptr = bits; i < cy; i++)
1211 for (j = 0; j < cx; j++, ptr++)
1212 if ((((BYTE *)mask_bits)[i * width_bytes + j / 8] << (j % 8)) & 0x80) *ptr = 0;
1213 else *ptr |= 0xff000000;
1214 }
1215
1216 ret = GdiAlphaBlend( dest_dc, dest_x, dest_y, cx, cy, hdc, 0, 0, cx, cy, func );
1217
1218 done:
1219 DeleteDC( hdc );
1220 if (bmp) DeleteObject( bmp );
1221 if (mask) DeleteObject( mask );
1222 HeapFree( GetProcessHeap(), 0, info );
1223 return ret;
1224 }
1225
1226 /*************************************************************************
1227 * ImageList_DrawIndirect [COMCTL32.@]
1228 *
1229 * Draws an image using various parameters specified in pimldp.
1230 *
1231 * PARAMS
1232 * pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
1233 *
1234 * RETURNS
1235 * Success: TRUE
1236 * Failure: FALSE
1237 */
1238
1239 BOOL WINAPI
1240 ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
1241 {
1242 INT cx, cy, nOvlIdx;
1243 DWORD fState, dwRop;
1244 UINT fStyle;
1245 COLORREF oldImageBk, oldImageFg;
1246 HDC hImageDC, hImageListDC, hMaskListDC;
1247 HBITMAP hImageBmp, hOldImageBmp, hBlendMaskBmp;
1248 BOOL bIsTransparent, bBlend, bResult = FALSE, bMask;
1249 HIMAGELIST himl;
1250 HBRUSH hOldBrush;
1251 POINT pt;
1252 BOOL has_alpha;
1253
1254 if (!pimldp || !(himl = pimldp->himl)) return FALSE;
1255 if (!is_valid(himl)) return FALSE;
1256 if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
1257
1258 imagelist_point_from_index( himl, pimldp->i, &pt );
1259 pt.x += pimldp->xBitmap;
1260 pt.y += pimldp->yBitmap;
1261
1262 fState = pimldp->cbSize < sizeof(IMAGELISTDRAWPARAMS) ? ILS_NORMAL : pimldp->fState;
1263 fStyle = pimldp->fStyle & ~ILD_OVERLAYMASK;
1264 cx = (pimldp->cx == 0) ? himl->cx : pimldp->cx;
1265 cy = (pimldp->cy == 0) ? himl->cy : pimldp->cy;
1266
1267 bIsTransparent = (fStyle & ILD_TRANSPARENT);
1268 if( pimldp->rgbBk == CLR_NONE )
1269 bIsTransparent = TRUE;
1270 if( ( pimldp->rgbBk == CLR_DEFAULT ) && ( himl->clrBk == CLR_NONE ) )
1271 bIsTransparent = TRUE;
1272 bMask = (himl->flags & ILC_MASK) && (fStyle & ILD_MASK) ;
1273 bBlend = (fStyle & (ILD_BLEND25 | ILD_BLEND50) ) && !bMask;
1274
1275 TRACE("himl(%p) hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
1276 himl, himl->hbmMask, pimldp->i, pimldp->x, pimldp->y, cx, cy);
1277
1278 /* we will use these DCs to access the images and masks in the ImageList */
1279 hImageListDC = himl->hdcImage;
1280 hMaskListDC = himl->hdcMask;
1281
1282 /* these will accumulate the image and mask for the image we're drawing */
1283 hImageDC = CreateCompatibleDC( pimldp->hdcDst );
1284 hImageBmp = CreateCompatibleBitmap( pimldp->hdcDst, cx, cy );
1285 hBlendMaskBmp = bBlend ? CreateBitmap(cx, cy, 1, 1, NULL) : 0;
1286
1287 /* Create a compatible DC. */
1288 if (!hImageListDC || !hImageDC || !hImageBmp ||
1289 (bBlend && !hBlendMaskBmp) || (himl->hbmMask && !hMaskListDC))
1290 goto cleanup;
1291
1292 hOldImageBmp = SelectObject(hImageDC, hImageBmp);
1293
1294 /*
1295 * To obtain a transparent look, background color should be set
1296 * to white and foreground color to black when blitting the
1297 * monochrome mask.
1298 */
1299 oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
1300 oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
1301
1302 has_alpha = (himl->has_alpha && himl->has_alpha[pimldp->i]);
1303 if (!bMask && (has_alpha || (fState & ILS_ALPHA)))
1304 {
1305 COLORREF colour;
1306 BLENDFUNCTION func;
1307
1308 func.BlendOp = AC_SRC_OVER;
1309 func.BlendFlags = 0;
1310 func.SourceConstantAlpha = (fState & ILS_ALPHA) ? pimldp->Frame : 255;
1311 func.AlphaFormat = AC_SRC_ALPHA;
1312
1313 if (bIsTransparent)
1314 {
1315 bResult = alpha_blend_image( himl, pimldp->hdcDst, pimldp->x, pimldp->y,
1316 pt.x, pt.y, cx, cy, func );
1317 goto end;
1318 }
1319 colour = pimldp->rgbBk;
1320 if (colour == CLR_DEFAULT) colour = himl->clrBk;
1321 if (colour == CLR_NONE) colour = GetBkColor( pimldp->hdcDst );
1322
1323 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1324 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1325 alpha_blend_image( himl, hImageDC, 0, 0, pt.x, pt.y, cx, cy, func );
1326 DeleteObject (SelectObject (hImageDC, hOldBrush));
1327 bResult = BitBlt( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCCOPY );
1328 goto end;
1329 }
1330
1331 /*
1332 * Draw the initial image
1333 */
1334 if( bMask ) {
1335 if (himl->hbmMask) {
1336 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (GetTextColor(pimldp->hdcDst)));
1337 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1338 BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCPAINT);
1339 DeleteObject (SelectObject (hImageDC, hOldBrush));
1340 if( bIsTransparent )
1341 {
1342 BitBlt ( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCAND);
1343 bResult = TRUE;
1344 goto end;
1345 }
1346 } else {
1347 hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
1348 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
1349 SelectObject(hImageDC, hOldBrush);
1350 }
1351 } else {
1352 /* blend the image with the needed solid background */
1353 COLORREF colour = RGB(0,0,0);
1354
1355 if( !bIsTransparent )
1356 {
1357 colour = pimldp->rgbBk;
1358 if( colour == CLR_DEFAULT )
1359 colour = himl->clrBk;
1360 if( colour == CLR_NONE )
1361 colour = GetBkColor(pimldp->hdcDst);
1362 }
1363
1364 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1365 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1366 if (himl->hbmMask)
1367 {
1368 BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND );
1369 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCPAINT );
1370 }
1371 else
1372 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCCOPY);
1373 DeleteObject (SelectObject (hImageDC, hOldBrush));
1374 }
1375
1376 /* Time for blending, if required */
1377 if (bBlend) {
1378 HBRUSH hBlendBrush;
1379 COLORREF clrBlend = pimldp->rgbFg;
1380 HDC hBlendMaskDC = hImageListDC;
1381 HBITMAP hOldBitmap;
1382
1383 /* Create the blend Mask */
1384 hOldBitmap = SelectObject(hBlendMaskDC, hBlendMaskBmp);
1385 hBlendBrush = fStyle & ILD_BLEND50 ? himl->hbrBlend50 : himl->hbrBlend25;
1386 hOldBrush = SelectObject(hBlendMaskDC, hBlendBrush);
1387 PatBlt(hBlendMaskDC, 0, 0, cx, cy, PATCOPY);
1388 SelectObject(hBlendMaskDC, hOldBrush);
1389
1390 /* Modify the blend mask if an Image Mask exist */
1391 if(himl->hbmMask) {
1392 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, 0x220326); /* NOTSRCAND */
1393 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, NOTSRCCOPY);
1394 }
1395
1396 /* now apply blend to the current image given the BlendMask */
1397 if (clrBlend == CLR_DEFAULT) clrBlend = GetSysColor (COLOR_HIGHLIGHT);
1398 else if (clrBlend == CLR_NONE) clrBlend = GetTextColor (pimldp->hdcDst);
1399 hOldBrush = SelectObject (hImageDC, CreateSolidBrush(clrBlend));
1400 BitBlt (hImageDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, 0xB8074A); /* PSDPxax */
1401 DeleteObject(SelectObject(hImageDC, hOldBrush));
1402 SelectObject(hBlendMaskDC, hOldBitmap);
1403 }
1404
1405 /* Now do the overlay image, if any */
1406 nOvlIdx = (pimldp->fStyle & ILD_OVERLAYMASK) >> 8;
1407 if ( (nOvlIdx >= 1) && (nOvlIdx <= MAX_OVERLAYIMAGE)) {
1408 nOvlIdx = himl->nOvlIdx[nOvlIdx - 1];
1409 if ((nOvlIdx >= 0) && (nOvlIdx < himl->cCurImage)) {
1410 POINT ptOvl;
1411 imagelist_point_from_index( himl, nOvlIdx, &ptOvl );
1412 ptOvl.x += pimldp->xBitmap;
1413 if (himl->hbmMask && !(fStyle & ILD_IMAGE))
1414 BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ptOvl.x, ptOvl.y, SRCAND);
1415 BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ptOvl.x, ptOvl.y, SRCPAINT);
1416 }
1417 }
1418
1419 if (fState & ILS_SATURATE) FIXME("ILS_SATURATE: unimplemented!\n");
1420 if (fState & ILS_GLOW) FIXME("ILS_GLOW: unimplemented!\n");
1421 if (fState & ILS_SHADOW) FIXME("ILS_SHADOW: unimplemented!\n");
1422
1423 if (fStyle & ILD_PRESERVEALPHA) FIXME("ILD_PRESERVEALPHA: unimplemented!\n");
1424 if (fStyle & ILD_SCALE) FIXME("ILD_SCALE: unimplemented!\n");
1425 if (fStyle & ILD_DPISCALE) FIXME("ILD_DPISCALE: unimplemented!\n");
1426
1427 /* now copy the image to the screen */
1428 dwRop = SRCCOPY;
1429 if (himl->hbmMask && bIsTransparent ) {
1430 COLORREF oldDstFg = SetTextColor(pimldp->hdcDst, RGB( 0, 0, 0 ) );
1431 COLORREF oldDstBk = SetBkColor(pimldp->hdcDst, RGB( 0xff, 0xff, 0xff ));
1432 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND);
1433 SetBkColor(pimldp->hdcDst, oldDstBk);
1434 SetTextColor(pimldp->hdcDst, oldDstFg);
1435 dwRop = SRCPAINT;
1436 }
1437 if (fStyle & ILD_ROP) dwRop = pimldp->dwRop;
1438 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, dwRop);
1439
1440 bResult = TRUE;
1441 end:
1442 /* cleanup the mess */
1443 SetBkColor(hImageDC, oldImageBk);
1444 SetTextColor(hImageDC, oldImageFg);
1445 SelectObject(hImageDC, hOldImageBmp);
1446 cleanup:
1447 DeleteObject(hBlendMaskBmp);
1448 DeleteObject(hImageBmp);
1449 DeleteDC(hImageDC);
1450
1451 return bResult;
1452 }
1453
1454
1455 /*************************************************************************
1456 * ImageList_Duplicate [COMCTL32.@]
1457 *
1458 * Duplicates an image list.
1459 *
1460 * PARAMS
1461 * himlSrc [I] source image list handle
1462 *
1463 * RETURNS
1464 * Success: Handle of duplicated image list.
1465 * Failure: NULL
1466 */
1467
1468 HIMAGELIST WINAPI
1469 ImageList_Duplicate (HIMAGELIST himlSrc)
1470 {
1471 HIMAGELIST himlDst;
1472
1473 if (!is_valid(himlSrc)) {
1474 ERR("Invalid image list handle!\n");
1475 return NULL;
1476 }
1477
1478 himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
1479 himlSrc->cCurImage, himlSrc->cGrow);
1480
1481 if (himlDst)
1482 {
1483 SIZE sz;
1484
1485 imagelist_get_bitmap_size(himlSrc, himlSrc->cCurImage, &sz);
1486 BitBlt (himlDst->hdcImage, 0, 0, sz.cx, sz.cy,
1487 himlSrc->hdcImage, 0, 0, SRCCOPY);
1488
1489 if (himlDst->hbmMask)
1490 BitBlt (himlDst->hdcMask, 0, 0, sz.cx, sz.cy,
1491 himlSrc->hdcMask, 0, 0, SRCCOPY);
1492
1493 himlDst->cCurImage = himlSrc->cCurImage;
1494 himlDst->cMaxImage = himlSrc->cMaxImage;
1495 if (himlSrc->has_alpha && himlDst->has_alpha)
1496 memcpy( himlDst->has_alpha, himlSrc->has_alpha, himlDst->cCurImage );
1497 }
1498 return himlDst;
1499 }
1500
1501
1502 /*************************************************************************
1503 * ImageList_EndDrag [COMCTL32.@]
1504 *
1505 * Finishes a drag operation.
1506 *
1507 * PARAMS
1508 * no Parameters
1509 *
1510 * RETURNS
1511 * Success: TRUE
1512 * Failure: FALSE
1513 */
1514
1515 VOID WINAPI
1516 ImageList_EndDrag (void)
1517 {
1518 /* cleanup the InternalDrag struct */
1519 InternalDrag.hwnd = 0;
1520 ImageList_Destroy (InternalDrag.himl);
1521 InternalDrag.himl = 0;
1522 InternalDrag.x= 0;
1523 InternalDrag.y= 0;
1524 InternalDrag.dxHotspot = 0;
1525 InternalDrag.dyHotspot = 0;
1526 InternalDrag.bShow = FALSE;
1527 DeleteObject(InternalDrag.hbmBg);
1528 InternalDrag.hbmBg = 0;
1529 }
1530
1531
1532 /*************************************************************************
1533 * ImageList_GetBkColor [COMCTL32.@]
1534 *
1535 * Returns the background color of an image list.
1536 *
1537 * PARAMS
1538 * himl [I] Image list handle.
1539 *
1540 * RETURNS
1541 * Success: background color
1542 * Failure: CLR_NONE
1543 */
1544
1545 COLORREF WINAPI
1546 ImageList_GetBkColor (HIMAGELIST himl)
1547 {
1548 return himl ? himl->clrBk : CLR_NONE;
1549 }
1550
1551
1552 /*************************************************************************
1553 * ImageList_GetDragImage [COMCTL32.@]
1554 *
1555 * Returns the handle to the internal drag image list.
1556 *
1557 * PARAMS
1558 * ppt [O] Pointer to the drag position. Can be NULL.
1559 * pptHotspot [O] Pointer to the position of the hot spot. Can be NULL.
1560 *
1561 * RETURNS
1562 * Success: Handle of the drag image list.
1563 * Failure: NULL.
1564 */
1565
1566 HIMAGELIST WINAPI
1567 ImageList_GetDragImage (POINT *ppt, POINT *pptHotspot)
1568 {
1569 if (is_valid(InternalDrag.himl)) {
1570 if (ppt) {
1571 ppt->x = InternalDrag.x;
1572 ppt->y = InternalDrag.y;
1573 }
1574 if (pptHotspot) {
1575 pptHotspot->x = InternalDrag.dxHotspot;
1576 pptHotspot->y = InternalDrag.dyHotspot;
1577 }
1578 return (InternalDrag.himl);
1579 }
1580
1581 return NULL;
1582 }
1583
1584
1585 /*************************************************************************
1586 * ImageList_GetFlags [COMCTL32.@]
1587 *
1588 * Gets the flags of the specified image list.
1589 *
1590 * PARAMS
1591 * himl [I] Handle to image list
1592 *
1593 * RETURNS
1594 * Image list flags.
1595 *
1596 * BUGS
1597 * Stub.
1598 */
1599
1600 DWORD WINAPI
1601 ImageList_GetFlags(HIMAGELIST himl)
1602 {
1603 TRACE("%p\n", himl);
1604
1605 return is_valid(himl) ? himl->flags : 0;
1606 }
1607
1608
1609 /*************************************************************************
1610 * ImageList_GetIcon [COMCTL32.@]
1611 *
1612 * Creates an icon from a masked image of an image list.
1613 *
1614 * PARAMS
1615 * himl [I] handle to image list
1616 * i [I] image index
1617 * flags [I] drawing style flags
1618 *
1619 * RETURNS
1620 * Success: icon handle
1621 * Failure: NULL
1622 */
1623
1624 HICON WINAPI
1625 ImageList_GetIcon (HIMAGELIST himl, INT i, UINT fStyle)
1626 {
1627 ICONINFO ii;
1628 HICON hIcon;
1629 HBITMAP hOldDstBitmap;
1630 HDC hdcDst;
1631 POINT pt;
1632
1633 TRACE("%p %d %d\n", himl, i, fStyle);
1634 if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
1635
1636 ii.fIcon = TRUE;
1637 ii.xHotspot = 0;
1638 ii.yHotspot = 0;
1639
1640 /* create colour bitmap */
1641 hdcDst = GetDC(0);
1642 ii.hbmColor = CreateCompatibleBitmap(hdcDst, himl->cx, himl->cy);
1643 ReleaseDC(0, hdcDst);
1644
1645 hdcDst = CreateCompatibleDC(0);
1646
1647 imagelist_point_from_index( himl, i, &pt );
1648
1649 /* draw mask*/
1650 ii.hbmMask = CreateBitmap (himl->cx, himl->cy, 1, 1, NULL);
1651 hOldDstBitmap = SelectObject (hdcDst, ii.hbmMask);
1652 if (himl->hbmMask) {
1653 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1654 himl->hdcMask, pt.x, pt.y, SRCCOPY);
1655 }
1656 else
1657 PatBlt (hdcDst, 0, 0, himl->cx, himl->cy, BLACKNESS);
1658
1659 /* draw image*/
1660 SelectObject (hdcDst, ii.hbmColor);
1661 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1662 himl->hdcImage, pt.x, pt.y, SRCCOPY);
1663
1664 /*
1665 * CreateIconIndirect requires us to deselect the bitmaps from
1666 * the DCs before calling
1667 */
1668 SelectObject(hdcDst, hOldDstBitmap);
1669
1670 hIcon = CreateIconIndirect (&ii);
1671
1672 DeleteObject (ii.hbmMask);
1673 DeleteObject (ii.hbmColor);
1674 DeleteDC (hdcDst);
1675
1676 return hIcon;
1677 }
1678
1679
1680 /*************************************************************************
1681 * ImageList_GetIconSize [COMCTL32.@]
1682 *
1683 * Retrieves the size of an image in an image list.
1684 *
1685 * PARAMS
1686 * himl [I] handle to image list
1687 * cx [O] pointer to the image width.
1688 * cy [O] pointer to the image height.
1689 *
1690 * RETURNS
1691 * Success: TRUE
1692 * Failure: FALSE
1693 *
1694 * NOTES
1695 * All images in an image list have the same size.
1696 */
1697
1698 BOOL WINAPI
1699 ImageList_GetIconSize (HIMAGELIST himl, INT *cx, INT *cy)
1700 {
1701 if (!is_valid(himl))
1702 return FALSE;
1703 if ((himl->cx <= 0) || (himl->cy <= 0))
1704 return FALSE;
1705
1706 if (cx)
1707 *cx = himl->cx;
1708 if (cy)
1709 *cy = himl->cy;
1710
1711 return TRUE;
1712 }
1713
1714
1715 /*************************************************************************
1716 * ImageList_GetImageCount [COMCTL32.@]
1717 *
1718 * Returns the number of images in an image list.
1719 *
1720 * PARAMS
1721 * himl [I] handle to image list
1722 *
1723 * RETURNS
1724 * Success: Number of images.
1725 * Failure: 0
1726 */
1727
1728 INT WINAPI
1729 ImageList_GetImageCount (HIMAGELIST himl)
1730 {
1731 if (!is_valid(himl))
1732 return 0;
1733
1734 return himl->cCurImage;
1735 }
1736
1737
1738 /*************************************************************************
1739 * ImageList_GetImageInfo [COMCTL32.@]
1740 *
1741 * Returns information about an image in an image list.
1742 *
1743 * PARAMS
1744 * himl [I] handle to image list
1745 * i [I] image index
1746 * pImageInfo [O] pointer to the image information
1747 *
1748 * RETURNS
1749 * Success: TRUE
1750 * Failure: FALSE
1751 */
1752
1753 BOOL WINAPI
1754 ImageList_GetImageInfo (HIMAGELIST himl, INT i, IMAGEINFO *pImageInfo)
1755 {
1756 POINT pt;
1757
1758 if (!is_valid(himl) || (pImageInfo == NULL))
1759 return FALSE;
1760 if ((i < 0) || (i >= himl->cCurImage))
1761 return FALSE;
1762
1763 pImageInfo->hbmImage = himl->hbmImage;
1764 pImageInfo->hbmMask = himl->hbmMask;
1765
1766 imagelist_point_from_index( himl, i, &pt );
1767 pImageInfo->rcImage.top = pt.y;
1768 pImageInfo->rcImage.bottom = pt.y + himl->cy;
1769 pImageInfo->rcImage.left = pt.x;
1770 pImageInfo->rcImage.right = pt.x + himl->cx;
1771
1772 return TRUE;
1773 }
1774
1775
1776 /*************************************************************************
1777 * ImageList_GetImageRect [COMCTL32.@]
1778 *
1779 * Retrieves the rectangle of the specified image in an image list.
1780 *
1781 * PARAMS
1782 * himl [I] handle to image list
1783 * i [I] image index
1784 * lpRect [O] pointer to the image rectangle
1785 *
1786 * RETURNS
1787 * Success: TRUE
1788 * Failure: FALSE
1789 *
1790 * NOTES
1791 * This is an UNDOCUMENTED function!!!
1792 */
1793
1794 BOOL WINAPI
1795 ImageList_GetImageRect (HIMAGELIST himl, INT i, LPRECT lpRect)
1796 {
1797 POINT pt;
1798
1799 if (!is_valid(himl) || (lpRect == NULL))
1800 return FALSE;
1801 if ((i < 0) || (i >= himl->cCurImage))
1802 return FALSE;
1803
1804 imagelist_point_from_index( himl, i, &pt );
1805 lpRect->left = pt.x;
1806 lpRect->top = pt.y;
1807 lpRect->right = pt.x + himl->cx;
1808 lpRect->bottom = pt.y + himl->cy;
1809
1810 return TRUE;
1811 }
1812
1813
1814 /*************************************************************************
1815 * ImageList_LoadImage [COMCTL32.@]
1816 * ImageList_LoadImageA [COMCTL32.@]
1817 *
1818 * Creates an image list from a bitmap, icon or cursor.
1819 *
1820 * See ImageList_LoadImageW.
1821 */
1822
1823 HIMAGELIST WINAPI
1824 ImageList_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
1825 COLORREF clrMask, UINT uType, UINT uFlags)
1826 {
1827 HIMAGELIST himl;
1828 LPWSTR lpbmpW;
1829 DWORD len;
1830
1831 if (IS_INTRESOURCE(lpbmp))
1832 return ImageList_LoadImageW(hi, (LPCWSTR)lpbmp, cx, cGrow, clrMask,
1833 uType, uFlags);
1834
1835 len = MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, NULL, 0);
1836 lpbmpW = Alloc(len * sizeof(WCHAR));
1837 MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, lpbmpW, len);
1838
1839 himl = ImageList_LoadImageW(hi, lpbmpW, cx, cGrow, clrMask, uType, uFlags);
1840 Free (lpbmpW);
1841 return himl;
1842 }
1843
1844
1845 /*************************************************************************
1846 * ImageList_LoadImageW [COMCTL32.@]
1847 *
1848 * Creates an image list from a bitmap, icon or cursor.
1849 *
1850 * PARAMS
1851 * hi [I] instance handle
1852 * lpbmp [I] name or id of the image
1853 * cx [I] width of each image
1854 * cGrow [I] number of images to expand
1855 * clrMask [I] mask color
1856 * uType [I] type of image to load
1857 * uFlags [I] loading flags
1858 *
1859 * RETURNS
1860 * Success: handle to the loaded image list
1861 * Failure: NULL
1862 *
1863 * SEE
1864 * LoadImage ()
1865 */
1866
1867 HIMAGELIST WINAPI
1868 ImageList_LoadImageW (HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow,
1869 COLORREF clrMask, UINT uType, UINT uFlags)
1870 {
1871 HIMAGELIST himl = NULL;
1872 HANDLE handle;
1873 INT nImageCount;
1874
1875 handle = LoadImageW (hi, lpbmp, uType, 0, 0, uFlags);
1876 if (!handle) {
1877 WARN("Couldn't load image\n");
1878 return NULL;
1879 }
1880
1881 if (uType == IMAGE_BITMAP) {
1882 BITMAP bmp;
1883 GetObjectW (handle, sizeof(BITMAP), &bmp);
1884
1885 /* To match windows behavior, if cx is set to zero and
1886 the flag DI_DEFAULTSIZE is specified, cx becomes the
1887 system metric value for icons. If the flag is not specified
1888 the function sets the size to the height of the bitmap */
1889 if (cx == 0)
1890 {
1891 if (uFlags & DI_DEFAULTSIZE)
1892 cx = GetSystemMetrics (SM_CXICON);
1893 else
1894 cx = bmp.bmHeight;
1895 }
1896
1897 nImageCount = bmp.bmWidth / cx;
1898
1899 himl = ImageList_Create (cx, bmp.bmHeight, ILC_MASK | ILC_COLOR,
1900 nImageCount, cGrow);
1901 if (!himl) {
1902 DeleteObject (handle);
1903 return NULL;
1904 }
1905 ImageList_AddMasked (himl, handle, clrMask);
1906 }
1907 else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
1908 ICONINFO ii;
1909 BITMAP bmp;
1910
1911 GetIconInfo (handle, &ii);
1912 GetObjectW (ii.hbmColor, sizeof(BITMAP), &bmp);
1913 himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
1914 ILC_MASK | ILC_COLOR, 1, cGrow);
1915 if (!himl) {
1916 DeleteObject (ii.hbmColor);
1917 DeleteObject (ii.hbmMask);
1918 DeleteObject (handle);
1919 return NULL;
1920 }
1921 ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
1922 DeleteObject (ii.hbmColor);
1923 DeleteObject (ii.hbmMask);
1924 }
1925
1926 DeleteObject (handle);
1927
1928 return himl;
1929 }
1930
1931
1932 /*************************************************************************
1933 * ImageList_Merge [COMCTL32.@]
1934 *
1935 * Create an image list containing a merged image from two image lists.
1936 *
1937 * PARAMS
1938 * himl1 [I] handle to first image list
1939 * i1 [I] first image index
1940 * himl2 [I] handle to second image list
1941 * i2 [I] second image index
1942 * dx [I] X offset of the second image relative to the first.
1943 * dy [I] Y offset of the second image relative to the first.
1944 *
1945 * RETURNS
1946 * Success: The newly created image list. It contains a single image
1947 * consisting of the second image merged with the first.
1948 * Failure: NULL, if either himl1 or himl2 are invalid.
1949 *
1950 * NOTES
1951 * - The returned image list should be deleted by the caller using
1952 * ImageList_Destroy() when it is no longer required.
1953 * - If either i1 or i2 are not valid image indices they will be treated
1954 * as a blank image.
1955 */
1956 HIMAGELIST WINAPI
1957 ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
1958 INT dx, INT dy)
1959 {
1960 HIMAGELIST himlDst = NULL;
1961 INT cxDst, cyDst;
1962 INT xOff1, yOff1, xOff2, yOff2;
1963 POINT pt1, pt2;
1964
1965 TRACE("(himl1=%p i1=%d himl2=%p i2=%d dx=%d dy=%d)\n", himl1, i1, himl2,
1966 i2, dx, dy);
1967
1968 if (!is_valid(himl1) || !is_valid(himl2))
1969 return NULL;
1970
1971 if (dx > 0) {
1972 cxDst = max (himl1->cx, dx + himl2->cx);
1973 xOff1 = 0;
1974 xOff2 = dx;
1975 }
1976 else if (dx < 0) {
1977 cxDst = max (himl2->cx, himl1->cx - dx);
1978 xOff1 = -dx;
1979 xOff2 = 0;
1980 }
1981 else {
1982 cxDst = max (himl1->cx, himl2->cx);
1983 xOff1 = 0;
1984 xOff2 = 0;
1985 }
1986
1987 if (dy > 0) {
1988 cyDst = max (himl1->cy, dy + himl2->cy);
1989 yOff1 = 0;
1990 yOff2 = dy;
1991 }
1992 else if (dy < 0) {
1993 cyDst = max (himl2->cy, himl1->cy - dy);
1994 yOff1 = -dy;
1995 yOff2 = 0;
1996 }
1997 else {
1998 cyDst = max (himl1->cy, himl2->cy);
1999 yOff1 = 0;
2000 yOff2 = 0;
2001 }
2002
2003 himlDst = ImageList_Create (cxDst, cyDst, ILC_MASK | ILC_COLOR, 1, 1);
2004
2005 if (himlDst)
2006 {
2007 imagelist_point_from_index( himl1, i1, &pt1 );
2008 imagelist_point_from_index( himl1, i2, &pt2 );
2009
2010 /* copy image */
2011 BitBlt (himlDst->hdcImage, 0, 0, cxDst, cyDst, himl1->hdcImage, 0, 0, BLACKNESS);
2012 if (i1 >= 0 && i1 < himl1->cCurImage)
2013 BitBlt (himlDst->hdcImage, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcImage, pt1.x, pt1.y, SRCCOPY);
2014 if (i2 >= 0 && i2 < himl2->cCurImage)
2015 {
2016 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask , pt2.x, pt2.y, SRCAND);
2017 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcImage, pt2.x, pt2.y, SRCPAINT);
2018 }
2019
2020 /* copy mask */
2021 BitBlt (himlDst->hdcMask, 0, 0, cxDst, cyDst, himl1->hdcMask, 0, 0, WHITENESS);
2022 if (i1 >= 0 && i1 < himl1->cCurImage)
2023 BitBlt (himlDst->hdcMask, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcMask, pt1.x, pt1.y, SRCCOPY);
2024 if (i2 >= 0 && i2 < himl2->cCurImage)
2025 BitBlt (himlDst->hdcMask, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask, pt2.x, pt2.y, SRCAND);
2026
2027 himlDst->cCurImage = 1;
2028 }
2029
2030 return himlDst;
2031 }
2032
2033
2034 /***********************************************************************
2035 * DIB_GetDIBWidthBytes
2036 *
2037 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
2038 */
2039 static int DIB_GetDIBWidthBytes( int width, int depth )
2040 {
2041 int words;
2042
2043 switch(depth)
2044 {
2045 case 1: words = (width + 31) / 32; break;
2046 case 4: words = (width + 7) / 8; break;
2047 case 8: words = (width + 3) / 4; break;
2048 case 15:
2049 case 16: words = (width + 1) / 2; break;
2050 case 24: words = (width * 3 + 3)/4; break;
2051
2052 default:
2053 WARN("(%d): Unsupported depth\n", depth );
2054 /* fall through */
2055 case 32:
2056 words = width;
2057 break;
2058 }
2059 return 4 * words;
2060 }
2061
2062 /***********************************************************************
2063 * DIB_GetDIBImageBytes
2064 *
2065 * Return the number of bytes used to hold the image in a DIB bitmap.
2066 */
2067 static int DIB_GetDIBImageBytes( int width, int height, int depth )
2068 {
2069 return DIB_GetDIBWidthBytes( width, depth ) * abs( height );
2070 }
2071
2072
2073 /* helper for ImageList_Read, see comments below */
2074 static BOOL _read_bitmap(HDC hdcIml, LPSTREAM pstm)
2075 {
2076 BITMAPFILEHEADER bmfh;
2077 int bitsperpixel, palspace;
2078 char bmi_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
2079 LPBITMAPINFO bmi = (LPBITMAPINFO)bmi_buf;
2080 int result = FALSE;
2081 LPBYTE bits = NULL;
2082
2083 if (FAILED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)))
2084 return FALSE;
2085
2086 if (bmfh.bfType != (('M'<<8)|'B'))
2087 return FALSE;
2088
2089 if (FAILED(IStream_Read ( pstm, &bmi->bmiHeader, sizeof(bmi->bmiHeader), NULL)))
2090 return FALSE;
2091
2092 if ((bmi->bmiHeader.biSize != sizeof(bmi->bmiHeader)))
2093 return FALSE;
2094
2095 TRACE("width %u, height %u, planes %u, bpp %u\n",
2096 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
2097 bmi->bmiHeader.biPlanes, bmi->bmiHeader.biBitCount);
2098
2099 bitsperpixel = bmi->bmiHeader.biPlanes * bmi->bmiHeader.biBitCount;
2100 if (bitsperpixel<=8)
2101 palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
2102 else
2103 palspace = 0;
2104
2105 bmi->bmiHeader.biSizeImage = DIB_GetDIBImageBytes(bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight, bitsperpixel);
2106
2107 /* read the palette right after the end of the bitmapinfoheader */
2108 if (palspace && FAILED(IStream_Read(pstm, bmi->bmiColors, palspace, NULL)))
2109 goto error;
2110
2111 bits = Alloc(bmi->bmiHeader.biSizeImage);
2112 if (!bits)
2113 goto error;
2114 if (FAILED(IStream_Read(pstm, bits, bmi->bmiHeader.biSizeImage, NULL)))
2115 goto error;
2116
2117 if (!StretchDIBits(hdcIml, 0, 0, bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
2118 0, 0, bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
2119 bits, bmi, DIB_RGB_COLORS, SRCCOPY))
2120 goto error;
2121 result = TRUE;
2122
2123 error:
2124 Free(bits);
2125 return result;
2126 }
2127
2128 /*************************************************************************
2129 * ImageList_Read [COMCTL32.@]
2130 *
2131 * Reads an image list from a stream.
2132 *
2133 * PARAMS
2134 * pstm [I] pointer to a stream
2135 *
2136 * RETURNS
2137 * Success: handle to image list
2138 * Failure: NULL
2139 *
2140 * The format is like this:
2141 * ILHEAD ilheadstruct;
2142 *
2143 * for the color image part:
2144 * BITMAPFILEHEADER bmfh;
2145 * BITMAPINFOHEADER bmih;
2146 * only if it has a palette:
2147 * RGBQUAD rgbs[nr_of_paletted_colors];
2148 *
2149 * BYTE colorbits[imagesize];
2150 *
2151 * the following only if the ILC_MASK bit is set in ILHEAD.ilFlags:
2152 * BITMAPFILEHEADER bmfh_mask;
2153 * BITMAPINFOHEADER bmih_mask;
2154 * only if it has a palette (it usually does not):
2155 * RGBQUAD rgbs[nr_of_paletted_colors];
2156 *
2157 * BYTE maskbits[imagesize];
2158 */
2159 HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
2160 {
2161 ILHEAD ilHead;
2162 HIMAGELIST himl;
2163 int i;
2164
2165 TRACE("%p\n", pstm);
2166
2167 if (FAILED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL)))
2168 return NULL;
2169 if (ilHead.usMagic != (('L' << 8) | 'I'))
2170 return NULL;
2171 if (ilHead.usVersion != 0x101) /* probably version? */
2172 return NULL;
2173
2174 TRACE("cx %u, cy %u, flags 0x%04x, cCurImage %u, cMaxImage %u\n",
2175 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2176
2177 himl = ImageList_Create(ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2178 if (!himl)
2179 return NULL;
2180
2181 if (!_read_bitmap(himl->hdcImage, pstm))
2182 {
2183 WARN("failed to read bitmap from stream\n");
2184 return NULL;
2185 }
2186 if (ilHead.flags & ILC_MASK)
2187 {
2188 if (!_read_bitmap(himl->hdcMask, pstm))
2189 {
2190 WARN("failed to read mask bitmap from stream\n");
2191 return NULL;
2192 }
2193 }
2194
2195 himl->cCurImage = ilHead.cCurImage;
2196 himl->cMaxImage = ilHead.cMaxImage;
2197
2198 ImageList_SetBkColor(himl,ilHead.bkcolor);
2199 for (i=0;i<4;i++)
2200 ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1);
2201 return himl;
2202 }
2203
2204
2205 /*************************************************************************
2206 * ImageList_Remove [COMCTL32.@]
2207 *
2208 * Removes an image from an image list
2209 *
2210 * PARAMS
2211 * himl [I] image list handle
2212 * i [I] image index
2213 *
2214 * RETURNS
2215 * Success: TRUE
2216 * Failure: FALSE
2217 *
2218 * FIXME: as the image list storage test shows, native comctl32 simply shifts
2219 * images without creating a new bitmap.
2220 */
2221 BOOL WINAPI
2222 ImageList_Remove (HIMAGELIST himl, INT i)
2223 {
2224 HBITMAP hbmNewImage, hbmNewMask;
2225 HDC hdcBmp;
2226 SIZE sz;
2227
2228 TRACE("(himl=%p i=%d)\n", himl, i);
2229
2230 if (!is_valid(himl)) {
2231 ERR("Invalid image list handle!\n");
2232 return FALSE;
2233 }
2234
2235 if ((i < -1) || (i >= himl->cCurImage)) {
2236 TRACE("index out of range! %d\n", i);
2237 return FALSE;
2238 }
2239
2240 if (i == -1) {
2241 INT nCount;
2242
2243 /* remove all */
2244 if (himl->cCurImage == 0) {
2245 /* remove all on empty ImageList is allowed */
2246 TRACE("remove all on empty ImageList!\n");
2247 return TRUE;
2248 }
2249
2250 himl->cMaxImage = himl->cInitial + himl->cGrow - 1;
2251 himl->cCurImage = 0;
2252 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2253 himl->nOvlIdx[nCount] = -1;
2254
2255 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2256 SelectObject (himl->hdcImage, hbmNewImage);
2257 DeleteObject (himl->hbmImage);
2258 himl->hbmImage = hbmNewImage;
2259
2260 if (himl->hbmMask) {
2261
2262 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2263 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2264 SelectObject (himl->hdcMask, hbmNewMask);
2265 DeleteObject (himl->hbmMask);
2266 himl->hbmMask = hbmNewMask;
2267 }
2268 }
2269 else {
2270 /* delete one image */
2271 TRACE("Remove single image! %d\n", i);
2272
2273 /* create new bitmap(s) */
2274 TRACE(" - Number of images: %d / %d (Old/New)\n",
2275 himl->cCurImage, himl->cCurImage - 1);
2276
2277 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2278
2279 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz );
2280 if (himl->hbmMask)
2281 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2282 else
2283 hbmNewMask = 0; /* Just to keep compiler happy! */
2284
2285 hdcBmp = CreateCompatibleDC (0);
2286
2287 /* copy all images and masks prior to the "removed" image */
2288 if (i > 0) {
2289 TRACE("Pre image copy: Copy %d images\n", i);
2290
2291 SelectObject (hdcBmp, hbmNewImage);
2292 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, 0, i, 0 );
2293
2294 if (himl->hbmMask) {
2295 SelectObject (hdcBmp, hbmNewMask);
2296 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, 0, i, 0 );
2297 }
2298 }
2299
2300 /* copy all images and masks behind the removed image */
2301 if (i < himl->cCurImage - 1) {
2302 TRACE("Post image copy!\n");
2303
2304 SelectObject (hdcBmp, hbmNewImage);
2305 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, i + 1,
2306 (himl->cCurImage - i), i );
2307
2308 if (himl->hbmMask) {
2309 SelectObject (hdcBmp, hbmNewMask);
2310 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, i + 1,
2311 (himl->cCurImage - i), i );
2312 }
2313 }
2314
2315 DeleteDC (hdcBmp);
2316
2317 /* delete old images and insert new ones */
2318 SelectObject (himl->hdcImage, hbmNewImage);
2319 DeleteObject (himl->hbmImage);
2320 himl->hbmImage = hbmNewImage;
2321 if (himl->hbmMask) {
2322 SelectObject (himl->hdcMask, hbmNewMask);
2323 DeleteObject (himl->hbmMask);
2324 himl->hbmMask = hbmNewMask;
2325 }
2326
2327 himl->cCurImage--;
2328 }
2329
2330 return TRUE;
2331 }
2332
2333
2334 /*************************************************************************
2335 * ImageList_Replace [COMCTL32.@]
2336 *
2337 * Replaces an image in an image list with a new image.
2338 *
2339 * PARAMS
2340 * himl [I] handle to image list
2341 * i [I] image index
2342 * hbmImage [I] handle to image bitmap
2343 * hbmMask [I] handle to mask bitmap. Can be NULL.
2344 *
2345 * RETURNS
2346 * Success: TRUE
2347 * Failure: FALSE
2348 */
2349
2350 BOOL WINAPI
2351 ImageList_Replace (HIMAGELIST himl, INT i, HBITMAP hbmImage,
2352 HBITMAP hbmMask)
2353 {
2354 HDC hdcImage;
2355 BITMAP bmp;
2356 POINT pt;
2357
2358 TRACE("%p %d %p %p\n", himl, i, hbmImage, hbmMask);
2359
2360 if (!is_valid(himl)) {
2361 ERR("Invalid image list handle!\n");
2362 return FALSE;
2363 }
2364
2365 if ((i >= himl->cMaxImage) || (i < 0)) {
2366 ERR("Invalid image index!\n");
2367 return FALSE;
2368 }
2369
2370 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
2371 return FALSE;
2372
2373 hdcImage = CreateCompatibleDC (0);
2374
2375 /* Replace Image */
2376 SelectObject (hdcImage, hbmImage);
2377
2378 if (add_with_alpha( himl, hdcImage, i, 1, bmp.bmWidth, bmp.bmHeight, hbmImage, hbmMask ))
2379 goto done;
2380
2381 imagelist_point_from_index(himl, i, &pt);
2382 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2383 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2384
2385 if (himl->hbmMask)
2386 {
2387 HDC hdcTemp;
2388 HBITMAP hOldBitmapTemp;
2389
2390 hdcTemp = CreateCompatibleDC(0);
2391 hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
2392
2393 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2394 hdcTemp, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2395 SelectObject(hdcTemp, hOldBitmapTemp);
2396 DeleteDC(hdcTemp);
2397
2398 /* Remove the background from the image
2399 */
2400 BitBlt (himl->hdcImage, pt.x, pt.y, bmp.bmWidth, bmp.bmHeight,
2401 himl->hdcMask, pt.x, pt.y, 0x220326); /* NOTSRCAND */
2402 }
2403
2404 done:
2405 DeleteDC (hdcImage);
2406
2407 return TRUE;
2408 }
2409
2410
2411 /*************************************************************************
2412 * ImageList_ReplaceIcon [COMCTL32.@]
2413 *
2414 * Replaces an image in an image list using an icon.
2415 *
2416 * PARAMS
2417 * himl [I] handle to image list
2418 * i [I] image index
2419 * hIcon [I] handle to icon
2420 *
2421 * RETURNS
2422 * Success: index of the replaced image
2423 * Failure: -1
2424 */
2425
2426 INT WINAPI
2427 ImageList_ReplaceIcon (HIMAGELIST himl, INT nIndex, HICON hIcon)
2428 {
2429 HDC hdcImage;
2430 HICON hBestFitIcon;
2431 ICONINFO ii;
2432 BITMAP bmp;
2433 BOOL ret;
2434 POINT pt;
2435
2436 TRACE("(%p %d %p)\n", himl, nIndex, hIcon);
2437
2438 if (!is_valid(himl)) {
2439 ERR("invalid image list\n");
2440 return -1;
2441 }
2442 if ((nIndex >= himl->cMaxImage) || (nIndex < -1)) {
2443 ERR("invalid image index %d / %d\n", nIndex, himl->cMaxImage);
2444 return -1;
2445 }
2446
2447 hBestFitIcon = CopyImage(
2448 hIcon, IMAGE_ICON,
2449 himl->cx, himl->cy,
2450 LR_COPYFROMRESOURCE);
2451 /* the above will fail if the icon wasn't loaded from a resource, so try
2452 * again without LR_COPYFROMRESOURCE flag */
2453 if (!hBestFitIcon)
2454 hBestFitIcon = CopyImage(
2455 hIcon, IMAGE_ICON,
2456 himl->cx, himl->cy,
2457 0);
2458 if (!hBestFitIcon)
2459 return -1;
2460
2461 ret = GetIconInfo (hBestFitIcon, &ii);
2462 if (!ret) {
2463 DestroyIcon(hBestFitIcon);
2464 return -1;
2465 }
2466
2467 ret = GetObjectW (ii.hbmMask, sizeof(BITMAP), &bmp);
2468 if (!ret) {
2469 ERR("couldn't get mask bitmap info\n");
2470 if (ii.hbmColor)
2471 DeleteObject (ii.hbmColor);
2472 if (ii.hbmMask)
2473 DeleteObject (ii.hbmMask);
2474 DestroyIcon(hBestFitIcon);
2475 return -1;
2476 }
2477
2478 if (nIndex == -1) {
2479 if (himl->cCurImage + 1 > himl->cMaxImage)
2480 IMAGELIST_InternalExpandBitmaps(himl, 1);
2481
2482 nIndex = himl->cCurImage;
2483 himl->cCurImage++;
2484 }
2485
2486 hdcImage = CreateCompatibleDC (0);
2487 TRACE("hdcImage=%p\n", hdcImage);
2488 if (hdcImage == 0)
2489 ERR("invalid hdcImage!\n");
2490
2491 if (himl->uBitsPixel == 32)
2492 {
2493 if (!ii.hbmColor)
2494 {
2495 UINT height = bmp.bmHeight / 2;
2496 HDC hdcMask = CreateCompatibleDC( 0 );
2497 HBITMAP color = CreateBitmap( bmp.bmWidth, height, 1, 1, NULL );
2498 SelectObject( hdcImage, color );
2499 SelectObject( hdcMask, ii.hbmMask );
2500 BitBlt( hdcImage, 0, 0, bmp.bmWidth, height, hdcMask, 0, height, SRCCOPY );
2501 add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, height, color, ii.hbmMask );
2502 DeleteDC( hdcMask );
2503 DeleteObject( color );
2504 }
2505 else add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, bmp.bmHeight, ii.hbmColor, ii.hbmMask );
2506
2507 goto done;
2508 }
2509
2510 imagelist_point_from_index(himl, nIndex, &pt);
2511
2512 SetTextColor(himl->hdcImage, RGB(0,0,0));
2513 SetBkColor (himl->hdcImage, RGB(255,255,255));
2514
2515 if (ii.hbmColor)
2516 {
2517 SelectObject (hdcImage, ii.hbmColor);
2518 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2519 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2520 if (himl->hbmMask)
2521 {
2522 SelectObject (hdcImage, ii.hbmMask);
2523 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2524 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2525 }
2526 }
2527 else
2528 {
2529 UINT height = bmp.bmHeight / 2;
2530 SelectObject (hdcImage, ii.hbmMask);
2531 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2532 hdcImage, 0, height, bmp.bmWidth, height, SRCCOPY);
2533 if (himl->hbmMask)
2534 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2535 hdcImage, 0, 0, bmp.bmWidth, height, SRCCOPY);
2536 }
2537
2538 done:
2539 DestroyIcon(hBestFitIcon);
2540 if (hdcImage)
2541 DeleteDC (hdcImage);
2542 if (ii.hbmColor)
2543 DeleteObject (ii.hbmColor);
2544 if (ii.hbmMask)
2545 DeleteObject (ii.hbmMask);
2546
2547 TRACE("Insert index = %d, himl->cCurImage = %d\n", nIndex, himl->cCurImage);
2548 return nIndex;
2549 }
2550
2551
2552 /*************************************************************************
2553 * ImageList_SetBkColor [COMCTL32.@]
2554 *
2555 * Sets the background color of an image list.
2556 *
2557 * PARAMS
2558 * himl [I] handle to image list
2559 * clrBk [I] background color
2560 *
2561 * RETURNS
2562 * Success: previous background color
2563 * Failure: CLR_NONE
2564 */
2565
2566 COLORREF WINAPI
2567 ImageList_SetBkColor (HIMAGELIST himl, COLORREF clrBk)
2568 {
2569 COLORREF clrOldBk;
2570
2571 if (!is_valid(himl))
2572 return CLR_NONE;
2573
2574 clrOldBk = himl->clrBk;
2575 himl->clrBk = clrBk;
2576 return clrOldBk;
2577 }
2578
2579
2580 /*************************************************************************
2581 * ImageList_SetDragCursorImage [COMCTL32.@]
2582 *
2583 * Combines the specified image with the current drag image
2584 *
2585 * PARAMS
2586 * himlDrag [I] handle to drag image list
2587 * iDrag [I] drag image index
2588 * dxHotspot [I] X position of the hot spot
2589 * dyHotspot [I] Y position of the hot spot
2590 *
2591 * RETURNS
2592 * Success: TRUE
2593 * Failure: FALSE
2594 *
2595 * NOTES
2596 * - The names dxHotspot, dyHotspot are misleading because they have nothing
2597 * to do with a hotspot but are only the offset of the origin of the new
2598 * image relative to the origin of the old image.
2599 *
2600 * - When this function is called and the drag image is visible, a
2601 * short flickering occurs but this matches the Win9x behavior. It is
2602 * possible to fix the flickering using code like in ImageList_DragMove.
2603 */
2604
2605 BOOL WINAPI
2606 ImageList_SetDragCursorImage (HIMAGELIST himlDrag, INT iDrag,
2607 INT dxHotspot, INT dyHotspot)
2608 {
2609 HIMAGELIST himlTemp;
2610 BOOL visible;
2611
2612 if (!is_valid(InternalDrag.himl) || !is_valid(himlDrag))
2613 return FALSE;
2614
2615 TRACE(" dxH=%d dyH=%d nX=%d nY=%d\n",
2616 dxHotspot, dyHotspot, InternalDrag.dxHotspot, InternalDrag.dyHotspot);
2617
2618 visible = InternalDrag.bShow;
2619
2620 himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag,
2621 dxHotspot, dyHotspot);
2622
2623 if (visible) {
2624 /* hide the drag image */
2625 ImageList_DragShowNolock(FALSE);
2626 }
2627 if ((InternalDrag.himl->cx != himlTemp->cx) ||
2628 (InternalDrag.himl->cy != himlTemp->cy)) {
2629 /* the size of the drag image changed, invalidate the buffer */
2630 DeleteObject(InternalDrag.hbmBg);
2631 InternalDrag.hbmBg = 0;
2632 }
2633
2634 ImageList_Destroy (InternalDrag.himl);
2635 InternalDrag.himl = himlTemp;
2636
2637 if (visible) {
2638 /* show the drag image */
2639 ImageList_DragShowNolock(TRUE);
2640 }
2641
2642 return TRUE;
2643 }
2644
2645
2646 /*************************************************************************
2647 * ImageList_SetFilter [COMCTL32.@]
2648 *
2649 * Sets a filter (or does something completely different)!!???
2650 * It removes 12 Bytes from the stack (3 Parameters).
2651 *
2652 * PARAMS
2653 * himl [I] SHOULD be a handle to image list
2654 * i [I] COULD be an index?
2655 * dwFilter [I] ???
2656 *
2657 * RETURNS
2658 * Success: TRUE ???
2659 * Failure: FALSE ???
2660 *
2661 * BUGS
2662 * This is an UNDOCUMENTED function!!!!
2663 * empty stub.
2664 */
2665
2666 BOOL WINAPI
2667 ImageList_SetFilter (HIMAGELIST himl, INT i, DWORD dwFilter)
2668 {
2669 FIXME("(%p 0x%x 0x%x):empty stub!\n", himl, i, dwFilter);
2670
2671 return FALSE;
2672 }
2673
2674
2675 /*************************************************************************
2676 * ImageList_SetFlags [COMCTL32.@]
2677 *
2678 * Sets the image list flags.
2679 *
2680 * PARAMS
2681 * himl [I] Handle to image list
2682 * flags [I] Flags to set
2683 *
2684 * RETURNS
2685 * Old flags?
2686 *
2687 * BUGS
2688 * Stub.
2689 */
2690
2691 DWORD WINAPI
2692 ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
2693 {
2694 FIXME("(%p %08x):empty stub\n", himl, flags);
2695 return 0;
2696 }
2697
2698
2699 /*************************************************************************
2700 * ImageList_SetIconSize [COMCTL32.@]
2701 *
2702 * Sets the image size of the bitmap and deletes all images.
2703 *
2704 * PARAMS
2705 * himl [I] handle to image list
2706 * cx [I] image width
2707 * cy [I] image height
2708 *
2709 * RETURNS
2710 * Success: TRUE
2711 * Failure: FALSE
2712 */
2713
2714 BOOL WINAPI
2715 ImageList_SetIconSize (HIMAGELIST himl, INT cx, INT cy)
2716 {
2717 INT nCount;
2718 HBITMAP hbmNew;
2719
2720 if (!is_valid(himl))
2721 return FALSE;
2722
2723 /* remove all images */
2724 himl->cMaxImage = himl->cInitial + 1;
2725 himl->cCurImage = 0;
2726 himl->cx = cx;
2727 himl->cy = cy;
2728
2729 /* initialize overlay mask indices */
2730 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2731 himl->nOvlIdx[nCount] = -1;
2732
2733 hbmNew = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2734 SelectObject (himl->hdcImage, hbmNew);
2735 DeleteObject (himl->hbmImage);
2736 himl->hbmImage = hbmNew;
2737
2738 if (himl->hbmMask) {
2739 SIZE sz;
2740 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2741 hbmNew = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2742 SelectObject (himl->hdcMask, hbmNew);
2743 DeleteObject (himl->hbmMask);
2744 himl->hbmMask = hbmNew;
2745 }
2746
2747 return TRUE;
2748 }
2749
2750
2751 /*************************************************************************
2752 * ImageList_SetImageCount [COMCTL32.@]
2753 *
2754 * Resizes an image list to the specified number of images.
2755 *
2756 * PARAMS
2757 * himl [I] handle to image list
2758 * iImageCount [I] number of images in the image list
2759 *
2760 * RETURNS
2761 * Success: TRUE
2762 * Failure: FALSE
2763 */
2764
2765 BOOL WINAPI
2766 ImageList_SetImageCount (HIMAGELIST himl, UINT iImageCount)
2767 {
2768 HDC hdcBitmap;
2769 HBITMAP hbmNewBitmap, hbmOld;
2770 INT nNewCount, nCopyCount;
2771
2772 TRACE("%p %d\n",himl,iImageCount);
2773
2774 if (!is_valid(himl))
2775 return FALSE;
2776 if (himl->cMaxImage > iImageCount)
2777 {
2778 himl->cCurImage = iImageCount;
2779 /* TODO: shrink the bitmap when cMaxImage-cCurImage>cGrow ? */
2780 return TRUE;
2781 }
2782
2783 nNewCount = iImageCount + himl->cGrow;
2784 nCopyCount = min(himl->cCurImage, iImageCount);
2785
2786 hdcBitmap = CreateCompatibleDC (0);
2787
2788 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
2789
2790 if (hbmNewBitmap != 0)
2791 {
2792 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2793 imagelist_copy_images( himl, himl->hdcImage, hdcBitmap, 0, nCopyCount, 0 );
2794 SelectObject (hdcBitmap, hbmOld);
2795
2796 /* FIXME: delete 'empty' image space? */
2797
2798 SelectObject (himl->hdcImage, hbmNewBitmap);
2799 DeleteObject (himl->hbmImage);
2800 himl->hbmImage = hbmNewBitmap;
2801 }
2802 else
2803 ERR("Could not create new image bitmap !\n");
2804
2805 if (himl->hbmMask)
2806 {
2807 SIZE sz;
2808 imagelist_get_bitmap_size( himl, nNewCount, &sz );
2809 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2810 if (hbmNewBitmap != 0)
2811 {
2812 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2813 imagelist_copy_images( himl, himl->hdcMask, hdcBitmap, 0, nCopyCount, 0 );
2814 SelectObject (hdcBitmap, hbmOld);
2815
2816 /* FIXME: delete 'empty' image space? */
2817
2818 SelectObject (himl->hdcMask, hbmNewBitmap);
2819 DeleteObject (himl->hbmMask);
2820 himl->hbmMask = hbmNewBitmap;
2821 }
2822 else
2823 ERR("Could not create new mask bitmap!\n");
2824 }
2825
2826 DeleteDC (hdcBitmap);
2827
2828 /* Update max image count and current image count */
2829 himl->cMaxImage = nNewCount;
2830 himl->cCurImage = iImageCount;
2831
2832 return TRUE;
2833 }
2834
2835
2836 /*************************************************************************
2837 * ImageList_SetOverlayImage [COMCTL32.@]
2838 *
2839 * Assigns an overlay mask index to an existing image in an image list.
2840 *
2841 * PARAMS
2842 * himl [I] handle to image list
2843 * iImage [I] image index
2844 * iOverlay [I] overlay mask index
2845 *
2846 * RETURNS
2847 * Success: TRUE
2848 * Failure: FALSE
2849 */
2850
2851 BOOL WINAPI
2852 ImageList_SetOverlayImage (HIMAGELIST himl, INT iImage, INT iOverlay)
2853 {
2854 if (!is_valid(himl))
2855 return FALSE;
2856 if ((iOverlay < 1) || (iOverlay > MAX_OVERLAYIMAGE))
2857 return FALSE;
2858 if ((iImage!=-1) && ((iImage < 0) || (iImage > himl->cCurImage)))
2859 return FALSE;
2860 himl->nOvlIdx[iOverlay - 1] = iImage;
2861 return TRUE;
2862 }
2863
2864
2865
2866 /* helper for ImageList_Write - write bitmap to pstm
2867 * currently everything is written as 24 bit RGB, except masks
2868 */
2869 static BOOL
2870 _write_bitmap(HBITMAP hBitmap, LPSTREAM pstm)
2871 {
2872 LPBITMAPFILEHEADER bmfh;
2873 LPBITMAPINFOHEADER bmih;
2874 LPBYTE data = NULL, lpBits;
2875 BITMAP bm;
2876 INT bitCount, sizeImage, offBits, totalSize;
2877 HDC xdc;
2878 BOOL result = FALSE;
2879
2880 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bm))
2881 return FALSE;
2882
2883 bitCount = bm.bmBitsPixel == 1 ? 1 : 24;
2884 sizeImage = DIB_GetDIBImageBytes(bm.bmWidth, bm.bmHeight, bitCount);
2885
2886 totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
2887 if(bitCount != 24)
2888 totalSize += (1 << bitCount) * sizeof(RGBQUAD);
2889 offBits = totalSize;
2890 totalSize += sizeImage;
2891
2892 data = Alloc(totalSize);
2893 bmfh = (LPBITMAPFILEHEADER)data;
2894 bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
2895 lpBits = data + offBits;
2896
2897 /* setup BITMAPFILEHEADER */
2898 bmfh->bfType = (('M' << 8) | 'B');
2899 bmfh->bfSize = offBits;
2900 bmfh->bfReserved1 = 0;
2901 bmfh->bfReserved2 = 0;
2902 bmfh->bfOffBits = offBits;
2903
2904 /* setup BITMAPINFOHEADER */
2905 bmih->biSize = sizeof(BITMAPINFOHEADER);
2906 bmih->biWidth = bm.bmWidth;
2907 bmih->biHeight = bm.bmHeight;
2908 bmih->biPlanes = 1;
2909 bmih->biBitCount = bitCount;
2910 bmih->biCompression = BI_RGB;
2911 bmih->biSizeImage = sizeImage;
2912 bmih->biXPelsPerMeter = 0;
2913 bmih->biYPelsPerMeter = 0;
2914 bmih->biClrUsed = 0;
2915 bmih->biClrImportant = 0;
2916
2917 xdc = GetDC(0);
2918 result = GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBits, (BITMAPINFO *)bmih, DIB_RGB_COLORS) == bm.bmHeight;
2919 ReleaseDC(0, xdc);
2920 if (!result)
2921 goto failed;
2922
2923 TRACE("width %u, height %u, planes %u, bpp %u\n",
2924 bmih->biWidth, bmih->biHeight,
2925 bmih->biPlanes, bmih->biBitCount);
2926
2927 if(bitCount == 1) {
2928 /* Hack. */
2929 LPBITMAPINFO inf = (LPBITMAPINFO)bmih;
2930 inf->bmiColors[0].rgbRed = inf->bmiColors[0].rgbGreen = inf->bmiColors[0].rgbBlue = 0;
2931 inf->bmiColors[1].rgbRed = inf->bmiColors[1].rgbGreen = inf->bmiColors[1].rgbBlue = 0xff;
2932 }
2933
2934 if(FAILED(IStream_Write(pstm, data, totalSize, NULL)))
2935 goto failed;
2936
2937 result = TRUE;
2938
2939 failed:
2940 Free(data);
2941
2942 return result;
2943 }
2944
2945
2946 /*************************************************************************
2947 * ImageList_Write [COMCTL32.@]
2948 *
2949 * Writes an image list to a stream.
2950 *
2951 * PARAMS
2952 * himl [I] handle to image list
2953 * pstm [O] Pointer to a stream.
2954 *
2955 * RETURNS
2956 * Success: TRUE
2957 * Failure: FALSE
2958 *
2959 * BUGS
2960 * probably.
2961 */
2962
2963 BOOL WINAPI
2964 ImageList_Write (HIMAGELIST himl, LPSTREAM pstm)
2965 {
2966 ILHEAD ilHead;
2967 int i;
2968
2969 TRACE("%p %p\n", himl, pstm);
2970
2971 if (!is_valid(himl))
2972 return FALSE;
2973
2974 ilHead.usMagic = (('L' << 8) | 'I');
2975 ilHead.usVersion = 0x101;
2976 ilHead.cCurImage = himl->cCurImage;
2977 ilHead.cMaxImage = himl->cMaxImage;
2978 ilHead.cGrow = himl->cGrow;
2979 ilHead.cx = himl->cx;
2980 ilHead.cy = himl->cy;
2981 ilHead.bkcolor = himl->clrBk;
2982 ilHead.flags = himl->flags;
2983 for(i = 0; i < 4; i++) {
2984 ilHead.ovls[i] = himl->nOvlIdx[i];
2985 }
2986
2987 TRACE("cx %u, cy %u, flags 0x04%x, cCurImage %u, cMaxImage %u\n",
2988 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2989
2990 if(FAILED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
2991 return FALSE;
2992
2993 /* write the bitmap */
2994 if(!_write_bitmap(himl->hbmImage, pstm))
2995 return FALSE;
2996
2997 /* write the mask if we have one */
2998 if(himl->flags & ILC_MASK) {
2999 if(!_write_bitmap(himl->hbmMask, pstm))
3000 return FALSE;
3001 }
3002
3003 return TRUE;
3004 }
3005
3006
3007 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count)
3008 {
3009 HBITMAP hbmNewBitmap;
3010 UINT ilc = (himl->flags & 0xFE);
3011 SIZE sz;
3012
3013 imagelist_get_bitmap_size( himl, count, &sz );
3014
3015 if ((ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32) || ilc == ILC_COLOR)
3016 {
3017 VOID* bits;
3018 BITMAPINFO *bmi;
3019
3020 TRACE("Creating DIBSection %d x %d, %d Bits per Pixel\n",
3021 sz.cx, sz.cy, himl->uBitsPixel);
3022
3023 if (himl->uBitsPixel <= ILC_COLOR8)
3024 {
3025 LPPALETTEENTRY pal;
3026 ULONG i, colors;
3027 BYTE temp;
3028
3029 colors = 1 << himl->uBitsPixel;
3030 bmi = Alloc(sizeof(BITMAPINFOHEADER) +
3031 sizeof(PALETTEENTRY) * colors);
3032
3033 pal = (LPPALETTEENTRY)bmi->bmiColors;
3034 GetPaletteEntries(GetStockObject(DEFAULT_PALETTE), 0, colors, pal);
3035
3036 /* Swap colors returned by GetPaletteEntries so we can use them for
3037 * CreateDIBSection call. */
3038 for (i = 0; i < colors; i++)
3039 {
3040 temp = pal[i].peBlue;
3041 bmi->bmiColors[i].rgbRed = pal[i].peRed;
3042 bmi->bmiColors[i].rgbBlue = temp;
3043 }
3044 }
3045 else
3046 {
3047 bmi = Alloc(sizeof(BITMAPINFOHEADER));
3048 }
3049
3050 bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3051 bmi->bmiHeader.biWidth = sz.cx;
3052 bmi->bmiHeader.biHeight = sz.cy;
3053 bmi->bmiHeader.biPlanes = 1;
3054 bmi->bmiHeader.biBitCount = himl->uBitsPixel;
3055 bmi->bmiHeader.biCompression = BI_RGB;
3056 bmi->bmiHeader.biSizeImage = 0;
3057 bmi->bmiHeader.biXPelsPerMeter = 0;
3058 bmi->bmiHeader.biYPelsPerMeter = 0;
3059 bmi->bmiHeader.biClrUsed = 0;
3060 bmi->bmiHeader.biClrImportant = 0;
3061
3062 hbmNewBitmap = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, &bits, 0, 0);
3063
3064 Free (bmi);
3065 }
3066 else /*if (ilc == ILC_COLORDDB)*/
3067 {
3068 TRACE("Creating Bitmap: %d Bits per Pixel\n", himl->uBitsPixel);
3069
3070 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, himl->uBitsPixel, NULL);
3071 }
3072 TRACE("returning %p\n", hbmNewBitmap);
3073 return hbmNewBitmap;
3074 }
3075
3076 /*************************************************************************
3077 * ImageList_SetColorTable [COMCTL32.@]
3078 *
3079 * Sets the color table of an image list.
3080 *
3081 * PARAMS
3082 * himl [I] Handle to the image list.
3083 * uStartIndex [I] The first index to set.
3084 * cEntries [I] Number of entries to set.
3085 * prgb [I] New color information for color table for the image list.
3086 *
3087 * RETURNS
3088 * Success: Number of entries in the table that were set.
3089 * Failure: Zero.
3090 *
3091 * SEE
3092 * ImageList_Create(), SetDIBColorTable()
3093 */
3094
3095 UINT WINAPI
3096 ImageList_SetColorTable (HIMAGELIST himl, UINT uStartIndex, UINT cEntries, CONST RGBQUAD * prgb)
3097 {
3098 return SetDIBColorTable(himl->hdcImage, uStartIndex, cEntries, prgb);
3099 }
3100
3101 /*************************************************************************
3102 * ImageList_CoCreateInstance [COMCTL32.@]
3103 *
3104 * Creates a new imagelist instance and returns an interface pointer to it.
3105 *
3106 * PARAMS
3107 * rclsid [I] A reference to the CLSID (CLSID_ImageList).
3108 * punkOuter [I] Pointer to IUnknown interface for aggregation, if desired
3109 * riid [I] Identifier of the requested interface.
3110 * ppv [O] Returns the address of the pointer requested, or NULL.
3111 *
3112 * RETURNS
3113 * Success: S_OK.
3114 * Failure: Error value.
3115 */
3116 HRESULT WINAPI
3117 ImageList_CoCreateInstance (REFCLSID rclsid, const IUnknown *punkOuter, REFIID riid, void **ppv)
3118 {
3119 TRACE("(%s,%p,%s,%p)\n", debugstr_guid(rclsid), punkOuter, debugstr_guid(riid), ppv);
3120
3121 if (!IsEqualCLSID(&CLSID_ImageList, rclsid))
3122 return E_NOINTERFACE;
3123
3124 return ImageListImpl_CreateInstance(punkOuter, riid, ppv);
3125 }
3126
3127
3128 /*************************************************************************
3129 * IImageList implementation
3130 */
3131
3132 static HRESULT WINAPI ImageListImpl_QueryInterface(IImageList *iface,
3133 REFIID iid, void **ppv)
3134 {
3135 HIMAGELIST This = (HIMAGELIST) iface;
3136 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
3137
3138 if (!ppv) return E_INVALIDARG;
3139
3140 if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IImageList, iid))
3141 *ppv = This;
3142 else
3143 {
3144 *ppv = NULL;
3145 return E_NOINTERFACE;
3146 }
3147
3148 IUnknown_AddRef((IUnknown*)*ppv);
3149 return S_OK;
3150 }
3151
3152 static ULONG WINAPI ImageListImpl_AddRef(IImageList *iface)
3153 {
3154 HIMAGELIST This = (HIMAGELIST) iface;
3155 ULONG ref = InterlockedIncrement(&This->ref);
3156
3157 TRACE("(%p) refcount=%u\n", iface, ref);
3158 return ref;
3159 }
3160
3161 static ULONG WINAPI ImageListImpl_Release(IImageList *iface)
3162 {
3163 HIMAGELIST This = (HIMAGELIST) iface;
3164 ULONG ref = InterlockedDecrement(&This->ref);
3165
3166 TRACE("(%p) refcount=%u\n", iface, ref);
3167
3168 if (ref == 0)
3169 {
3170 /* delete image bitmaps */
3171 if (This->hbmImage) DeleteObject (This->hbmImage);
3172 if (This->hbmMask) DeleteObject (This->hbmMask);
3173
3174 /* delete image & mask DCs */
3175 if (This->hdcImage) DeleteDC (This->hdcImage);
3176 if (This->hdcMask) DeleteDC (This->hdcMask);
3177
3178 /* delete blending brushes */
3179 if (This->hbrBlend25) DeleteObject (This->hbrBlend25);
3180 if (This->hbrBlend50) DeleteObject (This->hbrBlend50);
3181
3182 This->lpVtbl = NULL;
3183 HeapFree(GetProcessHeap(), 0, This->has_alpha);
3184 HeapFree(GetProcessHeap(), 0, This);
3185 }
3186
3187 return ref;
3188 }
3189
3190 static HRESULT WINAPI ImageListImpl_Add(IImageList *iface, HBITMAP hbmImage,
3191 HBITMAP hbmMask, int *pi)
3192 {
3193 HIMAGELIST This = (HIMAGELIST) iface;
3194 int ret;
3195
3196 if (!pi)
3197 return E_FAIL;
3198
3199 ret = ImageList_Add(This, hbmImage, hbmMask);
3200
3201 if (ret == -1)
3202 return E_FAIL;
3203
3204 *pi = ret;
3205 return S_OK;
3206 }
3207
3208 static HRESULT WINAPI ImageListImpl_ReplaceIcon(IImageList *iface, int i,
3209 HICON hicon, int *pi)
3210 {
3211 HIMAGELIST This = (HIMAGELIST) iface;
3212 int ret;