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winaspi.dll16: Simplify the "pointer to start of array" idiom.
[wine/multimedia.git] / dlls / comctl32 / imagelist.c
blob4d185975474772f1544ca09abcbe97bf9839699c
1 /*
2 * ImageList implementation
3 *
4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Jason Mawdsley
6 * Copyright 2001, 2004 Michael Stefaniuc
7 * Copyright 2001 Charles Loep for CodeWeavers
8 * Copyright 2002 Dimitrie O. Paun
9 * Copyright 2009 Owen Rudge for CodeWeavers
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 *
25 * NOTE
26 *
27 * This code was audited for completeness against the documented features
28 * of Comctl32.dll version 6.0 on Sep. 12, 2002, by Dimitrie O. Paun.
29 *
30 * Unless otherwise noted, we believe this code to be complete, as per
31 * the specification mentioned above.
32 * If you discover missing features, or bugs, please note them below.
33 *
34 * TODO:
35 * - Add support for ILD_PRESERVEALPHA, ILD_SCALE, ILD_DPISCALE
36 * - Add support for ILS_GLOW, ILS_SHADOW, ILS_SATURATE
37 * - Thread-safe locking
38 */
39
40 #include <stdarg.h>
41 #include <stdlib.h>
42 #include <string.h>
43
44 #define COBJMACROS
45
46 #include "winerror.h"
47 #include "windef.h"
48 #include "winbase.h"
49 #include "objbase.h"
50 #include "wingdi.h"
51 #include "winuser.h"
52 #include "commctrl.h"
53 #include "comctl32.h"
54 #include "commoncontrols.h"
55 #include "wine/debug.h"
56 #include "wine/exception.h"
57
58 WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
59
60 #define MAX_OVERLAYIMAGE 15
61
62 struct _IMAGELIST
63 {
64 const struct IImageListVtbl *lpVtbl; /* 00: IImageList vtable */
65
66 INT cCurImage; /* 04: ImageCount */
67 INT cMaxImage; /* 08: maximages */
68 INT cGrow; /* 0C: cGrow */
69 INT cx; /* 10: cx */
70 INT cy; /* 14: cy */
71 DWORD x4;
72 UINT flags; /* 1C: flags */
73 COLORREF clrFg; /* 20: foreground color */
74 COLORREF clrBk; /* 24: background color */
75
76
77 HBITMAP hbmImage; /* 28: images Bitmap */
78 HBITMAP hbmMask; /* 2C: masks Bitmap */
79 HDC hdcImage; /* 30: images MemDC */
80 HDC hdcMask; /* 34: masks MemDC */
81 INT nOvlIdx[MAX_OVERLAYIMAGE]; /* 38: overlay images index */
82
83 /* not yet found out */
84 HBRUSH hbrBlend25;
85 HBRUSH hbrBlend50;
86 INT cInitial;
87 UINT uBitsPixel;
88 char *has_alpha;
89
90 LONG ref; /* reference count */
91 };
92
93 #define IMAGELIST_MAGIC 0x53414D58
94
95 /* Header used by ImageList_Read() and ImageList_Write() */
96 #include "pshpack2.h"
97 typedef struct _ILHEAD
98 {
99 USHORT usMagic;
100 USHORT usVersion;
101 WORD cCurImage;
102 WORD cMaxImage;
103 WORD cGrow;
104 WORD cx;
105 WORD cy;
106 COLORREF bkcolor;
107 WORD flags;
108 SHORT ovls[4];
109 } ILHEAD;
110 #include "poppack.h"
111
112 /* internal image list data used for Drag & Drop operations */
113 typedef struct
114 {
115 HWND hwnd;
116 HIMAGELIST himl;
117 /* position of the drag image relative to the window */
118 INT x;
119 INT y;
120 /* offset of the hotspot relative to the origin of the image */
121 INT dxHotspot;
122 INT dyHotspot;
123 /* is the drag image visible */
124 BOOL bShow;
125 /* saved background */
126 HBITMAP hbmBg;
127 } INTERNALDRAG;
128
129 static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0 };
130
131 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count);
132 static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv);
133 static inline BOOL is_valid(HIMAGELIST himl);
134
135 /*
136 * An imagelist with N images is tiled like this:
137 *
138 * N/4 ->
139 *
140 * 4 048C..
141 * 159D..
142 * | 26AE.N
143 * V 37BF.
144 */
145
146 #define TILE_COUNT 4
147
148 static inline UINT imagelist_height( UINT count )
149 {
150 return ((count + TILE_COUNT - 1)/TILE_COUNT);
151 }
152
153 static inline void imagelist_point_from_index( HIMAGELIST himl, UINT index, LPPOINT pt )
154 {
155 pt->x = (index%TILE_COUNT) * himl->cx;
156 pt->y = (index/TILE_COUNT) * himl->cy;
157 }
158
159 static inline void imagelist_get_bitmap_size( HIMAGELIST himl, UINT count, SIZE *sz )
160 {
161 sz->cx = himl->cx * TILE_COUNT;
162 sz->cy = imagelist_height( count ) * himl->cy;
163 }
164
165 static inline int get_dib_stride( int width, int bpp )
166 {
167 return ((width * bpp + 31) >> 3) & ~3;
168 }
169
170 static inline int get_dib_image_size( const BITMAPINFO *info )
171 {
172 return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
173 * abs( info->bmiHeader.biHeight );
174 }
175
176 /*
177 * imagelist_copy_images()
178 *
179 * Copies a block of count images from offset src in the list to offset dest.
180 * Images are copied a row at at time. Assumes hdcSrc and hdcDest are different.
181 */
182 static inline void imagelist_copy_images( HIMAGELIST himl, HDC hdcSrc, HDC hdcDest,
183 UINT src, UINT count, UINT dest )
184 {
185 POINT ptSrc, ptDest;
186 SIZE sz;
187 UINT i;
188
189 for ( i=0; i<TILE_COUNT; i++ )
190 {
191 imagelist_point_from_index( himl, src+i, &ptSrc );
192 imagelist_point_from_index( himl, dest+i, &ptDest );
193 sz.cx = himl->cx;
194 sz.cy = himl->cy * imagelist_height( count - i );
195
196 BitBlt( hdcDest, ptDest.x, ptDest.y, sz.cx, sz.cy,
197 hdcSrc, ptSrc.x, ptSrc.y, SRCCOPY );
198 }
199 }
200
201 static void add_dib_bits( HIMAGELIST himl, int pos, int count, int width, int height,
202 BITMAPINFO *info, BITMAPINFO *mask_info, DWORD *bits, BYTE *mask_bits )
203 {
204 int i, j, n;
205 POINT pt;
206 int stride = info->bmiHeader.biWidth;
207 int mask_stride = (info->bmiHeader.biWidth + 31) / 32 * 4;
208
209 for (n = 0; n < count; n++)
210 {
211 int has_alpha = 0;
212
213 imagelist_point_from_index( himl, pos + n, &pt );
214
215 /* check if bitmap has an alpha channel */
216 for (i = 0; i < height && !has_alpha; i++)
217 for (j = n * width; j < (n + 1) * width; j++)
218 if ((has_alpha = ((bits[i * stride + j] & 0xff000000) != 0))) break;
219
220 if (!has_alpha) /* generate alpha channel from the mask */
221 {
222 for (i = 0; i < height; i++)
223 for (j = n * width; j < (n + 1) * width; j++)
224 if (!mask_info || !((mask_bits[i * mask_stride + j / 8] << (j % 8)) & 0x80))
225 bits[i * stride + j] |= 0xff000000;
226 else
227 bits[i * stride + j] = 0;
228 }
229 else
230 {
231 himl->has_alpha[pos + n] = 1;
232
233 if (mask_info && himl->hbmMask) /* generate the mask from the alpha channel */
234 {
235 for (i = 0; i < height; i++)
236 for (j = n * width; j < (n + 1) * width; j++)
237 if ((bits[i * stride + j] >> 24) > 25) /* more than 10% alpha */
238 mask_bits[i * mask_stride + j / 8] &= ~(0x80 >> (j % 8));
239 else
240 mask_bits[i * mask_stride + j / 8] |= 0x80 >> (j % 8);
241 }
242 }
243 StretchDIBits( himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
244 n * width, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
245 if (mask_info)
246 StretchDIBits( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
247 n * width, 0, width, height, mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY );
248 }
249 }
250
251 /* add images with an alpha channel when the image list is 32 bpp */
252 static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
253 int width, int height, HBITMAP hbmImage, HBITMAP hbmMask )
254 {
255 BOOL ret = FALSE;
256 BITMAP bm;
257 BITMAPINFO *info, *mask_info = NULL;
258 DWORD *bits = NULL;
259 BYTE *mask_bits = NULL;
260 DWORD mask_width;
261
262 if (!GetObjectW( hbmImage, sizeof(bm), &bm )) return FALSE;
263
264 /* if either the imagelist or the source bitmap don't have an alpha channel, bail out now */
265 if (!himl->has_alpha) return FALSE;
266 if (bm.bmBitsPixel != 32) return FALSE;
267
268 SelectObject( hdc, hbmImage );
269 mask_width = (bm.bmWidth + 31) / 32 * 4;
270
271 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
272 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
273 info->bmiHeader.biWidth = bm.bmWidth;
274 info->bmiHeader.biHeight = -height;
275 info->bmiHeader.biPlanes = 1;
276 info->bmiHeader.biBitCount = 32;
277 info->bmiHeader.biCompression = BI_RGB;
278 info->bmiHeader.biSizeImage = bm.bmWidth * height * 4;
279 info->bmiHeader.biXPelsPerMeter = 0;
280 info->bmiHeader.biYPelsPerMeter = 0;
281 info->bmiHeader.biClrUsed = 0;
282 info->bmiHeader.biClrImportant = 0;
283 if (!(bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
284 if (!GetDIBits( hdc, hbmImage, 0, height, bits, info, DIB_RGB_COLORS )) goto done;
285
286 if (hbmMask)
287 {
288 if (!(mask_info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[2] ))))
289 goto done;
290 mask_info->bmiHeader = info->bmiHeader;
291 mask_info->bmiHeader.biBitCount = 1;
292 mask_info->bmiHeader.biSizeImage = mask_width * height;
293 if (!(mask_bits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage )))
294 goto done;
295 if (!GetDIBits( hdc, hbmMask, 0, height, mask_bits, mask_info, DIB_RGB_COLORS )) goto done;
296 }
297
298 add_dib_bits( himl, pos, count, width, height, info, mask_info, bits, mask_bits );
299 ret = TRUE;
300
301 done:
302 HeapFree( GetProcessHeap(), 0, info );
303 HeapFree( GetProcessHeap(), 0, mask_info );
304 HeapFree( GetProcessHeap(), 0, bits );
305 HeapFree( GetProcessHeap(), 0, mask_bits );
306 return ret;
307 }
308
309 /*************************************************************************
310 * IMAGELIST_InternalExpandBitmaps [Internal]
311 *
312 * Expands the bitmaps of an image list by the given number of images.
313 *
314 * PARAMS
315 * himl [I] handle to image list
316 * nImageCount [I] number of images to add
317 *
318 * RETURNS
319 * nothing
320 *
321 * NOTES
322 * This function CANNOT be used to reduce the number of images.
323 */
324 static void
325 IMAGELIST_InternalExpandBitmaps(HIMAGELIST himl, INT nImageCount)
326 {
327 HDC hdcBitmap;
328 HBITMAP hbmNewBitmap, hbmNull;
329 INT nNewCount;
330 SIZE sz;
331
332 TRACE("%p has allocated %d, max %d, grow %d images\n", himl, himl->cCurImage, himl->cMaxImage, himl->cGrow);
333
334 if (himl->cCurImage + nImageCount < himl->cMaxImage)
335 return;
336
337 nNewCount = himl->cMaxImage + max(nImageCount, himl->cGrow) + 1;
338
339 imagelist_get_bitmap_size(himl, nNewCount, &sz);
340
341 TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, sz.cx, sz.cy, nNewCount);
342 hdcBitmap = CreateCompatibleDC (0);
343
344 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
345
346 if (hbmNewBitmap == 0)
347 ERR("creating new image bitmap (x=%d y=%d)!\n", sz.cx, sz.cy);
348
349 if (himl->cCurImage)
350 {
351 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
352 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
353 himl->hdcImage, 0, 0, SRCCOPY);
354 SelectObject (hdcBitmap, hbmNull);
355 }
356 SelectObject (himl->hdcImage, hbmNewBitmap);
357 DeleteObject (himl->hbmImage);
358 himl->hbmImage = hbmNewBitmap;
359
360 if (himl->flags & ILC_MASK)
361 {
362 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
363
364 if (hbmNewBitmap == 0)
365 ERR("creating new mask bitmap!\n");
366
367 if(himl->cCurImage)
368 {
369 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
370 BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
371 himl->hdcMask, 0, 0, SRCCOPY);
372 SelectObject (hdcBitmap, hbmNull);
373 }
374 SelectObject (himl->hdcMask, hbmNewBitmap);
375 DeleteObject (himl->hbmMask);
376 himl->hbmMask = hbmNewBitmap;
377 }
378
379 if (himl->has_alpha)
380 {
381 char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
382 if (new_alpha) himl->has_alpha = new_alpha;
383 else
384 {
385 HeapFree( GetProcessHeap(), 0, himl->has_alpha );
386 himl->has_alpha = NULL;
387 }
388 }
389
390 himl->cMaxImage = nNewCount;
391
392 DeleteDC (hdcBitmap);
393 }
394
395
396 /*************************************************************************
397 * ImageList_Add [COMCTL32.@]
398 *
399 * Add an image or images to an image list.
400 *
401 * PARAMS
402 * himl [I] handle to image list
403 * hbmImage [I] handle to image bitmap
404 * hbmMask [I] handle to mask bitmap
405 *
406 * RETURNS
407 * Success: Index of the first new image.
408 * Failure: -1
409 */
410
411 INT WINAPI
412 ImageList_Add (HIMAGELIST himl, HBITMAP hbmImage, HBITMAP hbmMask)
413 {
414 HDC hdcBitmap, hdcTemp = 0;
415 INT nFirstIndex, nImageCount, i;
416 BITMAP bmp;
417 POINT pt;
418
419 TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
420 if (!is_valid(himl))
421 return -1;
422
423 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
424 return -1;
425
426 TRACE("himl %p, cCurImage %d, cMaxImage %d, cGrow %d, cx %d, cy %d\n",
427 himl, himl->cCurImage, himl->cMaxImage, himl->cGrow, himl->cx, himl->cy);
428
429 nImageCount = bmp.bmWidth / himl->cx;
430
431 TRACE("%p has %d images (%d x %d)\n", hbmImage, nImageCount, bmp.bmWidth, bmp.bmHeight);
432
433 IMAGELIST_InternalExpandBitmaps(himl, nImageCount);
434
435 hdcBitmap = CreateCompatibleDC(0);
436
437 SelectObject(hdcBitmap, hbmImage);
438
439 if (add_with_alpha( himl, hdcBitmap, himl->cCurImage, nImageCount,
440 himl->cx, min( himl->cy, bmp.bmHeight), hbmImage, hbmMask ))
441 goto done;
442
443 if (himl->hbmMask)
444 {
445 hdcTemp = CreateCompatibleDC(0);
446 SelectObject(hdcTemp, hbmMask);
447 }
448
449 for (i=0; i<nImageCount; i++)
450 {
451 imagelist_point_from_index( himl, himl->cCurImage + i, &pt );
452
453 /* Copy result to the imagelist
454 */
455 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
456 hdcBitmap, i*himl->cx, 0, SRCCOPY );
457
458 if (!himl->hbmMask)
459 continue;
460
461 BitBlt( himl->hdcMask, pt.x, pt.y, himl->cx, bmp.bmHeight,
462 hdcTemp, i*himl->cx, 0, SRCCOPY );
463
464 /* Remove the background from the image
465 */
466 BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
467 himl->hdcMask, pt.x, pt.y, 0x220326 ); /* NOTSRCAND */
468 }
469 if (hdcTemp) DeleteDC(hdcTemp);
470
471 done:
472 DeleteDC(hdcBitmap);
473
474 nFirstIndex = himl->cCurImage;
475 himl->cCurImage += nImageCount;
476
477 return nFirstIndex;
478 }
479
480
481 /*************************************************************************
482 * ImageList_AddIcon [COMCTL32.@]
483 *
484 * Adds an icon to an image list.
485 *
486 * PARAMS
487 * himl [I] handle to image list
488 * hIcon [I] handle to icon
489 *
490 * RETURNS
491 * Success: index of the new image
492 * Failure: -1
493 */
494 #undef ImageList_AddIcon
495 INT WINAPI ImageList_AddIcon (HIMAGELIST himl, HICON hIcon)
496 {
497 return ImageList_ReplaceIcon (himl, -1, hIcon);
498 }
499
500
501 /*************************************************************************
502 * ImageList_AddMasked [COMCTL32.@]
503 *
504 * Adds an image or images to an image list and creates a mask from the
505 * specified bitmap using the mask color.
506 *
507 * PARAMS
508 * himl [I] handle to image list.
509 * hBitmap [I] handle to bitmap
510 * clrMask [I] mask color.
511 *
512 * RETURNS
513 * Success: Index of the first new image.
514 * Failure: -1
515 */
516
517 INT WINAPI
518 ImageList_AddMasked (HIMAGELIST himl, HBITMAP hBitmap, COLORREF clrMask)
519 {
520 HDC hdcMask, hdcBitmap;
521 INT ret;
522 BITMAP bmp;
523 HBITMAP hMaskBitmap;
524 COLORREF bkColor;
525
526 TRACE("himl=%p hbitmap=%p clrmask=%x\n", himl, hBitmap, clrMask);
527 if (!is_valid(himl))
528 return -1;
529
530 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bmp))
531 return -1;
532
533 hdcBitmap = CreateCompatibleDC(0);
534 SelectObject(hdcBitmap, hBitmap);
535
536 /* Create a temp Mask so we can remove the background of the Image */
537 hdcMask = CreateCompatibleDC(0);
538 hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
539 SelectObject(hdcMask, hMaskBitmap);
540
541 /* create monochrome image to the mask bitmap */
542 bkColor = (clrMask != CLR_DEFAULT) ? clrMask : GetPixel (hdcBitmap, 0, 0);
543 SetBkColor (hdcBitmap, bkColor);
544 BitBlt (hdcMask, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
545
546 /*
547 * Remove the background from the image
548 *
549 * WINDOWS BUG ALERT!!!!!!
550 * The statement below should not be done in common practice
551 * but this is how ImageList_AddMasked works in Windows.
552 * It overwrites the original bitmap passed, this was discovered
553 * by using the same bitmap to iterate the different styles
554 * on windows where it failed (BUT ImageList_Add is OK)
555 * This is here in case some apps rely on this bug
556 *
557 * Blt mode 0x220326 is NOTSRCAND
558 */
559 if (bmp.bmBitsPixel > 8) /* NOTSRCAND can't work with palettes */
560 {
561 SetBkColor(hdcBitmap, RGB(255,255,255));
562 BitBlt(hdcBitmap, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcMask, 0, 0, 0x220326);
563 }
564
565 DeleteDC(hdcBitmap);
566 DeleteDC(hdcMask);
567
568 ret = ImageList_Add( himl, hBitmap, hMaskBitmap );
569
570 DeleteObject(hMaskBitmap);
571 return ret;
572 }
573
574
575 /*************************************************************************
576 * ImageList_BeginDrag [COMCTL32.@]
577 *
578 * Creates a temporary image list that contains one image. It will be used
579 * as a drag image.
580 *
581 * PARAMS
582 * himlTrack [I] handle to the source image list
583 * iTrack [I] index of the drag image in the source image list
584 * dxHotspot [I] X position of the hot spot of the drag image
585 * dyHotspot [I] Y position of the hot spot of the drag image
586 *
587 * RETURNS
588 * Success: TRUE
589 * Failure: FALSE
590 */
591
592 BOOL WINAPI
593 ImageList_BeginDrag (HIMAGELIST himlTrack, INT iTrack,
594 INT dxHotspot, INT dyHotspot)
595 {
596 INT cx, cy;
597
598 TRACE("(himlTrack=%p iTrack=%d dx=%d dy=%d)\n", himlTrack, iTrack,
599 dxHotspot, dyHotspot);
600
601 if (!is_valid(himlTrack))
602 return FALSE;
603
604 if (InternalDrag.himl)
605 ImageList_EndDrag ();
606
607 cx = himlTrack->cx;
608 cy = himlTrack->cy;
609
610 InternalDrag.himl = ImageList_Create (cx, cy, himlTrack->flags, 1, 1);
611 if (InternalDrag.himl == NULL) {
612 WARN("Error creating drag image list!\n");
613 return FALSE;
614 }
615
616 InternalDrag.dxHotspot = dxHotspot;
617 InternalDrag.dyHotspot = dyHotspot;
618
619 /* copy image */
620 BitBlt (InternalDrag.himl->hdcImage, 0, 0, cx, cy, himlTrack->hdcImage, iTrack * cx, 0, SRCCOPY);
621
622 /* copy mask */
623 BitBlt (InternalDrag.himl->hdcMask, 0, 0, cx, cy, himlTrack->hdcMask, iTrack * cx, 0, SRCCOPY);
624
625 InternalDrag.himl->cCurImage = 1;
626
627 return TRUE;
628 }
629
630
631 /*************************************************************************
632 * ImageList_Copy [COMCTL32.@]
633 *
634 * Copies an image of the source image list to an image of the
635 * destination image list. Images can be copied or swapped.
636 *
637 * PARAMS
638 * himlDst [I] handle to the destination image list
639 * iDst [I] destination image index.
640 * himlSrc [I] handle to the source image list
641 * iSrc [I] source image index
642 * uFlags [I] flags for the copy operation
643 *
644 * RETURNS
645 * Success: TRUE
646 * Failure: FALSE
647 *
648 * NOTES
649 * Copying from one image list to another is possible. The original
650 * implementation just copies or swaps within one image list.
651 * Could this feature become a bug??? ;-)
652 */
653
654 BOOL WINAPI
655 ImageList_Copy (HIMAGELIST himlDst, INT iDst, HIMAGELIST himlSrc,
656 INT iSrc, UINT uFlags)
657 {
658 POINT ptSrc, ptDst;
659
660 TRACE("himlDst=%p iDst=%d himlSrc=%p iSrc=%d\n", himlDst, iDst, himlSrc, iSrc);
661
662 if (!is_valid(himlSrc) || !is_valid(himlDst))
663 return FALSE;
664 if ((iDst < 0) || (iDst >= himlDst->cCurImage))
665 return FALSE;
666 if ((iSrc < 0) || (iSrc >= himlSrc->cCurImage))
667 return FALSE;
668
669 imagelist_point_from_index( himlDst, iDst, &ptDst );
670 imagelist_point_from_index( himlSrc, iSrc, &ptSrc );
671
672 if (uFlags & ILCF_SWAP) {
673 /* swap */
674 HDC hdcBmp;
675 HBITMAP hbmTempImage, hbmTempMask;
676
677 hdcBmp = CreateCompatibleDC (0);
678
679 /* create temporary bitmaps */
680 hbmTempImage = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
681 himlSrc->uBitsPixel, NULL);
682 hbmTempMask = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
683 1, NULL);
684
685 /* copy (and stretch) destination to temporary bitmaps.(save) */
686 /* image */
687 SelectObject (hdcBmp, hbmTempImage);
688 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
689 himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
690 SRCCOPY);
691 /* mask */
692 SelectObject (hdcBmp, hbmTempMask);
693 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
694 himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
695 SRCCOPY);
696
697 /* copy (and stretch) source to destination */
698 /* image */
699 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
700 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
701 SRCCOPY);
702 /* mask */
703 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
704 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
705 SRCCOPY);
706
707 /* copy (without stretching) temporary bitmaps to source (restore) */
708 /* mask */
709 BitBlt (himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
710 hdcBmp, 0, 0, SRCCOPY);
711
712 /* image */
713 BitBlt (himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
714 hdcBmp, 0, 0, SRCCOPY);
715 /* delete temporary bitmaps */
716 DeleteObject (hbmTempMask);
717 DeleteObject (hbmTempImage);
718 DeleteDC(hdcBmp);
719 }
720 else {
721 /* copy image */
722 StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
723 himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
724 SRCCOPY);
725
726 /* copy mask */
727 StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
728 himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
729 SRCCOPY);
730 }
731
732 return TRUE;
733 }
734
735
736 /*************************************************************************
737 * ImageList_Create [COMCTL32.@]
738 *
739 * Creates a new image list.
740 *
741 * PARAMS
742 * cx [I] image height
743 * cy [I] image width
744 * flags [I] creation flags
745 * cInitial [I] initial number of images in the image list
746 * cGrow [I] number of images by which image list grows
747 *
748 * RETURNS
749 * Success: Handle to the created image list
750 * Failure: NULL
751 */
752 HIMAGELIST WINAPI
753 ImageList_Create (INT cx, INT cy, UINT flags,
754 INT cInitial, INT cGrow)
755 {
756 HIMAGELIST himl;
757 INT nCount;
758 HBITMAP hbmTemp;
759 UINT ilc = (flags & 0xFE);
760 static const WORD aBitBlend25[] =
761 {0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
762
763 static const WORD aBitBlend50[] =
764 {0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
765
766 TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
767
768 if (cx <= 0 || cy <= 0) return NULL;
769
770 /* Create the IImageList interface for the image list */
771 if (FAILED(ImageListImpl_CreateInstance(NULL, &IID_IImageList, (void **)&himl)))
772 return NULL;
773
774 cGrow = (WORD)((max( cGrow, 1 ) + 3) & ~3);
775
776 if (cGrow > 256)
777 {
778 /* Windows doesn't limit the size here, but X11 doesn't let us allocate such huge bitmaps */
779 WARN( "grow %d too large, limiting to 256\n", cGrow );
780 cGrow = 256;
781 }
782
783 himl->cx = cx;
784 himl->cy = cy;
785 himl->flags = flags;
786 himl->cMaxImage = cInitial + 1;
787 himl->cInitial = cInitial;
788 himl->cGrow = cGrow;
789 himl->clrFg = CLR_DEFAULT;
790 himl->clrBk = CLR_NONE;
791
792 /* initialize overlay mask indices */
793 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
794 himl->nOvlIdx[nCount] = -1;
795
796 /* Create Image & Mask DCs */
797 himl->hdcImage = CreateCompatibleDC (0);
798 if (!himl->hdcImage)
799 goto cleanup;
800 if (himl->flags & ILC_MASK){
801 himl->hdcMask = CreateCompatibleDC(0);
802 if (!himl->hdcMask)
803 goto cleanup;
804 }
805
806 /* Default to ILC_COLOR4 if none of the ILC_COLOR* flags are specified */
807 if (ilc == ILC_COLOR)
808 {
809 ilc = ILC_COLOR4;
810 himl->flags |= ILC_COLOR4;
811 }
812
813 if (ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32)
814 himl->uBitsPixel = ilc;
815 else
816 himl->uBitsPixel = (UINT)GetDeviceCaps (himl->hdcImage, BITSPIXEL);
817
818 if (himl->cMaxImage > 0) {
819 himl->hbmImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
820 SelectObject(himl->hdcImage, himl->hbmImage);
821 } else
822 himl->hbmImage = 0;
823
824 if ((himl->cMaxImage > 0) && (himl->flags & ILC_MASK)) {
825 SIZE sz;
826
827 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
828 himl->hbmMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
829 if (himl->hbmMask == 0) {
830 ERR("Error creating mask bitmap!\n");
831 goto cleanup;
832 }
833 SelectObject(himl->hdcMask, himl->hbmMask);
834 }
835 else
836 himl->hbmMask = 0;
837
838 if (ilc == ILC_COLOR32)
839 himl->has_alpha = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->cMaxImage );
840 else
841 himl->has_alpha = NULL;
842
843 /* create blending brushes */
844 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend25);
845 himl->hbrBlend25 = CreatePatternBrush (hbmTemp);
846 DeleteObject (hbmTemp);
847
848 hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend50);
849 himl->hbrBlend50 = CreatePatternBrush (hbmTemp);
850 DeleteObject (hbmTemp);
851
852 TRACE("created imagelist %p\n", himl);
853 return himl;
854
855 cleanup:
856 ImageList_Destroy(himl);
857 return NULL;
858 }
859
860
861 /*************************************************************************
862 * ImageList_Destroy [COMCTL32.@]
863 *
864 * Destroys an image list.
865 *
866 * PARAMS
867 * himl [I] handle to image list
868 *
869 * RETURNS
870 * Success: TRUE
871 * Failure: FALSE
872 */
873
874 BOOL WINAPI
875 ImageList_Destroy (HIMAGELIST himl)
876 {
877 if (!is_valid(himl))
878 return FALSE;
879
880 IImageList_Release((IImageList *) himl);
881 return TRUE;
882 }
883
884
885 /*************************************************************************
886 * ImageList_DragEnter [COMCTL32.@]
887 *
888 * Locks window update and displays the drag image at the given position.
889 *
890 * PARAMS
891 * hwndLock [I] handle of the window that owns the drag image.
892 * x [I] X position of the drag image.
893 * y [I] Y position of the drag image.
894 *
895 * RETURNS
896 * Success: TRUE
897 * Failure: FALSE
898 *
899 * NOTES
900 * The position of the drag image is relative to the window, not
901 * the client area.
902 */
903
904 BOOL WINAPI
905 ImageList_DragEnter (HWND hwndLock, INT x, INT y)
906 {
907 TRACE("(hwnd=%p x=%d y=%d)\n", hwndLock, x, y);
908
909 if (!is_valid(InternalDrag.himl))
910 return FALSE;
911
912 if (hwndLock)
913 InternalDrag.hwnd = hwndLock;
914 else
915 InternalDrag.hwnd = GetDesktopWindow ();
916
917 InternalDrag.x = x;
918 InternalDrag.y = y;
919
920 /* draw the drag image and save the background */
921 if (!ImageList_DragShowNolock(TRUE)) {
922 return FALSE;
923 }
924
925 return TRUE;
926 }
927
928
929 /*************************************************************************
930 * ImageList_DragLeave [COMCTL32.@]
931 *
932 * Unlocks window update and hides the drag image.
933 *
934 * PARAMS
935 * hwndLock [I] handle of the window that owns the drag image.
936 *
937 * RETURNS
938 * Success: TRUE
939 * Failure: FALSE
940 */
941
942 BOOL WINAPI
943 ImageList_DragLeave (HWND hwndLock)
944 {
945 /* As we don't save drag info in the window this can lead to problems if
946 an app does not supply the same window as DragEnter */
947 /* if (hwndLock)
948 InternalDrag.hwnd = hwndLock;
949 else
950 InternalDrag.hwnd = GetDesktopWindow (); */
951 if(!hwndLock)
952 hwndLock = GetDesktopWindow();
953 if(InternalDrag.hwnd != hwndLock)
954 FIXME("DragLeave hWnd != DragEnter hWnd\n");
955
956 ImageList_DragShowNolock (FALSE);
957
958 return TRUE;
959 }
960
961
962 /*************************************************************************
963 * ImageList_InternalDragDraw [Internal]
964 *
965 * Draws the drag image.
966 *
967 * PARAMS
968 * hdc [I] device context to draw into.
969 * x [I] X position of the drag image.
970 * y [I] Y position of the drag image.
971 *
972 * RETURNS
973 * Success: TRUE
974 * Failure: FALSE
975 *
976 * NOTES
977 * The position of the drag image is relative to the window, not
978 * the client area.
979 *
980 */
981
982 static inline void
983 ImageList_InternalDragDraw (HDC hdc, INT x, INT y)
984 {
985 IMAGELISTDRAWPARAMS imldp;
986
987 ZeroMemory (&imldp, sizeof(imldp));
988 imldp.cbSize = sizeof(imldp);
989 imldp.himl = InternalDrag.himl;
990 imldp.i = 0;
991 imldp.hdcDst = hdc,
992 imldp.x = x;
993 imldp.y = y;
994 imldp.rgbBk = CLR_DEFAULT;
995 imldp.rgbFg = CLR_DEFAULT;
996 imldp.fStyle = ILD_NORMAL;
997 imldp.fState = ILS_ALPHA;
998 imldp.Frame = 192;
999 ImageList_DrawIndirect (&imldp);
1000 }
1001
1002 /*************************************************************************
1003 * ImageList_DragMove [COMCTL32.@]
1004 *
1005 * Moves the drag image.
1006 *
1007 * PARAMS
1008 * x [I] X position of the drag image.
1009 * y [I] Y position of the drag image.
1010 *
1011 * RETURNS
1012 * Success: TRUE
1013 * Failure: FALSE
1014 *
1015 * NOTES
1016 * The position of the drag image is relative to the window, not
1017 * the client area.
1018 */
1019
1020 BOOL WINAPI
1021 ImageList_DragMove (INT x, INT y)
1022 {
1023 TRACE("(x=%d y=%d)\n", x, y);
1024
1025 if (!is_valid(InternalDrag.himl))
1026 return FALSE;
1027
1028 /* draw/update the drag image */
1029 if (InternalDrag.bShow) {
1030 HDC hdcDrag;
1031 HDC hdcOffScreen;
1032 HDC hdcBg;
1033 HBITMAP hbmOffScreen;
1034 INT origNewX, origNewY;
1035 INT origOldX, origOldY;
1036 INT origRegX, origRegY;
1037 INT sizeRegX, sizeRegY;
1038
1039
1040 /* calculate the update region */
1041 origNewX = x - InternalDrag.dxHotspot;
1042 origNewY = y - InternalDrag.dyHotspot;
1043 origOldX = InternalDrag.x - InternalDrag.dxHotspot;
1044 origOldY = InternalDrag.y - InternalDrag.dyHotspot;
1045 origRegX = min(origNewX, origOldX);
1046 origRegY = min(origNewY, origOldY);
1047 sizeRegX = InternalDrag.himl->cx + abs(x - InternalDrag.x);
1048 sizeRegY = InternalDrag.himl->cy + abs(y - InternalDrag.y);
1049
1050 hdcDrag = GetDCEx(InternalDrag.hwnd, 0,
1051 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
1052 hdcOffScreen = CreateCompatibleDC(hdcDrag);
1053 hdcBg = CreateCompatibleDC(hdcDrag);
1054
1055 hbmOffScreen = CreateCompatibleBitmap(hdcDrag, sizeRegX, sizeRegY);
1056 SelectObject(hdcOffScreen, hbmOffScreen);
1057 SelectObject(hdcBg, InternalDrag.hbmBg);
1058
1059 /* get the actual background of the update region */
1060 BitBlt(hdcOffScreen, 0, 0, sizeRegX, sizeRegY, hdcDrag,
1061 origRegX, origRegY, SRCCOPY);
1062 /* erase the old image */
1063 BitBlt(hdcOffScreen, origOldX - origRegX, origOldY - origRegY,
1064 InternalDrag.himl->cx, InternalDrag.himl->cy, hdcBg, 0, 0,
1065 SRCCOPY);
1066 /* save the background */
1067 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
1068 hdcOffScreen, origNewX - origRegX, origNewY - origRegY, SRCCOPY);
1069 /* draw the image */
1070 ImageList_InternalDragDraw(hdcOffScreen, origNewX - origRegX,
1071 origNewY - origRegY);
1072 /* draw the update region to the screen */
1073 BitBlt(hdcDrag, origRegX, origRegY, sizeRegX, sizeRegY,
1074 hdcOffScreen, 0, 0, SRCCOPY);
1075
1076 DeleteDC(hdcBg);
1077 DeleteDC(hdcOffScreen);
1078 DeleteObject(hbmOffScreen);
1079 ReleaseDC(InternalDrag.hwnd, hdcDrag);
1080 }
1081
1082 /* update the image position */
1083 InternalDrag.x = x;
1084 InternalDrag.y = y;
1085
1086 return TRUE;
1087 }
1088
1089
1090 /*************************************************************************
1091 * ImageList_DragShowNolock [COMCTL32.@]
1092 *
1093 * Shows or hides the drag image.
1094 *
1095 * PARAMS
1096 * bShow [I] TRUE shows the drag image, FALSE hides it.
1097 *
1098 * RETURNS
1099 * Success: TRUE
1100 * Failure: FALSE
1101 */
1102
1103 BOOL WINAPI
1104 ImageList_DragShowNolock (BOOL bShow)
1105 {
1106 HDC hdcDrag;
1107 HDC hdcBg;
1108 INT x, y;
1109
1110 if (!is_valid(InternalDrag.himl))
1111 return FALSE;
1112
1113 TRACE("bShow=0x%X!\n", bShow);
1114
1115 /* DragImage is already visible/hidden */
1116 if ((InternalDrag.bShow && bShow) || (!InternalDrag.bShow && !bShow)) {
1117 return FALSE;
1118 }
1119
1120 /* position of the origin of the DragImage */
1121 x = InternalDrag.x - InternalDrag.dxHotspot;
1122 y = InternalDrag.y - InternalDrag.dyHotspot;
1123
1124 hdcDrag = GetDCEx (InternalDrag.hwnd, 0,
1125 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
1126 if (!hdcDrag) {
1127 return FALSE;
1128 }
1129
1130 hdcBg = CreateCompatibleDC(hdcDrag);
1131 if (!InternalDrag.hbmBg) {
1132 InternalDrag.hbmBg = CreateCompatibleBitmap(hdcDrag,
1133 InternalDrag.himl->cx, InternalDrag.himl->cy);
1134 }
1135 SelectObject(hdcBg, InternalDrag.hbmBg);
1136
1137 if (bShow) {
1138 /* save the background */
1139 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
1140 hdcDrag, x, y, SRCCOPY);
1141 /* show the image */
1142 ImageList_InternalDragDraw(hdcDrag, x, y);
1143 } else {
1144 /* hide the image */
1145 BitBlt(hdcDrag, x, y, InternalDrag.himl->cx, InternalDrag.himl->cy,
1146 hdcBg, 0, 0, SRCCOPY);
1147 }
1148
1149 InternalDrag.bShow = !InternalDrag.bShow;
1150
1151 DeleteDC(hdcBg);
1152 ReleaseDC (InternalDrag.hwnd, hdcDrag);
1153 return TRUE;
1154 }
1155
1156
1157 /*************************************************************************
1158 * ImageList_Draw [COMCTL32.@]
1159 *
1160 * Draws an image.
1161 *
1162 * PARAMS
1163 * himl [I] handle to image list
1164 * i [I] image index
1165 * hdc [I] handle to device context
1166 * x [I] x position
1167 * y [I] y position
1168 * fStyle [I] drawing flags
1169 *
1170 * RETURNS
1171 * Success: TRUE
1172 * Failure: FALSE
1173 *
1174 * SEE
1175 * ImageList_DrawEx.
1176 */
1177
1178 BOOL WINAPI
1179 ImageList_Draw (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y, UINT fStyle)
1180 {
1181 return ImageList_DrawEx (himl, i, hdc, x, y, 0, 0,
1182 CLR_DEFAULT, CLR_DEFAULT, fStyle);
1183 }
1184
1185
1186 /*************************************************************************
1187 * ImageList_DrawEx [COMCTL32.@]
1188 *
1189 * Draws an image and allows using extended drawing features.
1190 *
1191 * PARAMS
1192 * himl [I] handle to image list
1193 * i [I] image index
1194 * hdc [I] handle to device context
1195 * x [I] X position
1196 * y [I] Y position
1197 * dx [I] X offset
1198 * dy [I] Y offset
1199 * rgbBk [I] background color
1200 * rgbFg [I] foreground color
1201 * fStyle [I] drawing flags
1202 *
1203 * RETURNS
1204 * Success: TRUE
1205 * Failure: FALSE
1206 *
1207 * NOTES
1208 * Calls ImageList_DrawIndirect.
1209 *
1210 * SEE
1211 * ImageList_DrawIndirect.
1212 */
1213
1214 BOOL WINAPI
1215 ImageList_DrawEx (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y,
1216 INT dx, INT dy, COLORREF rgbBk, COLORREF rgbFg,
1217 UINT fStyle)
1218 {
1219 IMAGELISTDRAWPARAMS imldp;
1220
1221 ZeroMemory (&imldp, sizeof(imldp));
1222 imldp.cbSize = sizeof(imldp);
1223 imldp.himl = himl;
1224 imldp.i = i;
1225 imldp.hdcDst = hdc,
1226 imldp.x = x;
1227 imldp.y = y;
1228 imldp.cx = dx;
1229 imldp.cy = dy;
1230 imldp.rgbBk = rgbBk;
1231 imldp.rgbFg = rgbFg;
1232 imldp.fStyle = fStyle;
1233
1234 return ImageList_DrawIndirect (&imldp);
1235 }
1236
1237
1238 static BOOL alpha_blend_image( HIMAGELIST himl, HDC dest_dc, int dest_x, int dest_y,
1239 int src_x, int src_y, int cx, int cy, BLENDFUNCTION func,
1240 UINT style, COLORREF blend_col )
1241 {
1242 BOOL ret = FALSE;
1243 HDC hdc;
1244 HBITMAP bmp = 0, mask = 0;
1245 BITMAPINFO *info;
1246 void *bits, *mask_bits;
1247 unsigned int *ptr;
1248 int i, j;
1249
1250 if (!(hdc = CreateCompatibleDC( 0 ))) return FALSE;
1251 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
1252 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1253 info->bmiHeader.biWidth = cx;
1254 info->bmiHeader.biHeight = cy;
1255 info->bmiHeader.biPlanes = 1;
1256 info->bmiHeader.biBitCount = 32;
1257 info->bmiHeader.biCompression = BI_RGB;
1258 info->bmiHeader.biSizeImage = cx * cy * 4;
1259 info->bmiHeader.biXPelsPerMeter = 0;
1260 info->bmiHeader.biYPelsPerMeter = 0;
1261 info->bmiHeader.biClrUsed = 0;
1262 info->bmiHeader.biClrImportant = 0;
1263 if (!(bmp = CreateDIBSection( himl->hdcImage, info, DIB_RGB_COLORS, &bits, 0, 0 ))) goto done;
1264 SelectObject( hdc, bmp );
1265 BitBlt( hdc, 0, 0, cx, cy, himl->hdcImage, src_x, src_y, SRCCOPY );
1266
1267 if (blend_col != CLR_NONE)
1268 {
1269 BYTE r = GetRValue( blend_col );
1270 BYTE g = GetGValue( blend_col );
1271 BYTE b = GetBValue( blend_col );
1272
1273 if (style & ILD_BLEND25)
1274 {
1275 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1276 *ptr = ((*ptr & 0xff000000) |
1277 ((((*ptr & 0x00ff0000) * 3 + (r << 16)) / 4) & 0x00ff0000) |
1278 ((((*ptr & 0x0000ff00) * 3 + (g << 8)) / 4) & 0x0000ff00) |
1279 ((((*ptr & 0x000000ff) * 3 + (b << 0)) / 4) & 0x000000ff));
1280 }
1281 else if (style & ILD_BLEND50)
1282 {
1283 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1284 *ptr = ((*ptr & 0xff000000) |
1285 ((((*ptr & 0x00ff0000) + (r << 16)) / 2) & 0x00ff0000) |
1286 ((((*ptr & 0x0000ff00) + (g << 8)) / 2) & 0x0000ff00) |
1287 ((((*ptr & 0x000000ff) + (b << 0)) / 2) & 0x000000ff));
1288 }
1289 }
1290
1291 if (himl->has_alpha) /* we already have an alpha channel in this case */
1292 {
1293 /* pre-multiply by the alpha channel */
1294 for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
1295 {
1296 DWORD alpha = *ptr >> 24;
1297 *ptr = ((*ptr & 0xff000000) |
1298 (((*ptr & 0x00ff0000) * alpha / 255) & 0x00ff0000) |
1299 (((*ptr & 0x0000ff00) * alpha / 255) & 0x0000ff00) |
1300 (((*ptr & 0x000000ff) * alpha / 255)));
1301 }
1302 }
1303 else if (himl->hbmMask)
1304 {
1305 unsigned int width_bytes = (cx + 31) / 32 * 4;
1306 /* generate alpha channel from the mask */
1307 info->bmiHeader.biBitCount = 1;
1308 info->bmiHeader.biSizeImage = width_bytes * cy;
1309 info->bmiColors[0].rgbRed = 0;
1310 info->bmiColors[0].rgbGreen = 0;
1311 info->bmiColors[0].rgbBlue = 0;
1312 info->bmiColors[0].rgbReserved = 0;
1313 info->bmiColors[1].rgbRed = 0xff;
1314 info->bmiColors[1].rgbGreen = 0xff;
1315 info->bmiColors[1].rgbBlue = 0xff;
1316 info->bmiColors[1].rgbReserved = 0;
1317 if (!(mask = CreateDIBSection( himl->hdcMask, info, DIB_RGB_COLORS, &mask_bits, 0, 0 )))
1318 goto done;
1319 SelectObject( hdc, mask );
1320 BitBlt( hdc, 0, 0, cx, cy, himl->hdcMask, src_x, src_y, SRCCOPY );
1321 SelectObject( hdc, bmp );
1322 for (i = 0, ptr = bits; i < cy; i++)
1323 for (j = 0; j < cx; j++, ptr++)
1324 if ((((BYTE *)mask_bits)[i * width_bytes + j / 8] << (j % 8)) & 0x80) *ptr = 0;
1325 else *ptr |= 0xff000000;
1326 }
1327
1328 ret = GdiAlphaBlend( dest_dc, dest_x, dest_y, cx, cy, hdc, 0, 0, cx, cy, func );
1329
1330 done:
1331 DeleteDC( hdc );
1332 if (bmp) DeleteObject( bmp );
1333 if (mask) DeleteObject( mask );
1334 HeapFree( GetProcessHeap(), 0, info );
1335 return ret;
1336 }
1337
1338 /*************************************************************************
1339 * ImageList_DrawIndirect [COMCTL32.@]
1340 *
1341 * Draws an image using various parameters specified in pimldp.
1342 *
1343 * PARAMS
1344 * pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
1345 *
1346 * RETURNS
1347 * Success: TRUE
1348 * Failure: FALSE
1349 */
1350
1351 BOOL WINAPI
1352 ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
1353 {
1354 INT cx, cy, nOvlIdx;
1355 DWORD fState, dwRop;
1356 UINT fStyle;
1357 COLORREF oldImageBk, oldImageFg;
1358 HDC hImageDC, hImageListDC, hMaskListDC;
1359 HBITMAP hImageBmp, hOldImageBmp, hBlendMaskBmp;
1360 BOOL bIsTransparent, bBlend, bResult = FALSE, bMask;
1361 HIMAGELIST himl;
1362 HBRUSH hOldBrush;
1363 POINT pt;
1364 BOOL has_alpha;
1365
1366 if (!pimldp || !(himl = pimldp->himl)) return FALSE;
1367 if (!is_valid(himl)) return FALSE;
1368 if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
1369
1370 imagelist_point_from_index( himl, pimldp->i, &pt );
1371 pt.x += pimldp->xBitmap;
1372 pt.y += pimldp->yBitmap;
1373
1374 fState = pimldp->cbSize < sizeof(IMAGELISTDRAWPARAMS) ? ILS_NORMAL : pimldp->fState;
1375 fStyle = pimldp->fStyle & ~ILD_OVERLAYMASK;
1376 cx = (pimldp->cx == 0) ? himl->cx : pimldp->cx;
1377 cy = (pimldp->cy == 0) ? himl->cy : pimldp->cy;
1378
1379 bIsTransparent = (fStyle & ILD_TRANSPARENT);
1380 if( pimldp->rgbBk == CLR_NONE )
1381 bIsTransparent = TRUE;
1382 if( ( pimldp->rgbBk == CLR_DEFAULT ) && ( himl->clrBk == CLR_NONE ) )
1383 bIsTransparent = TRUE;
1384 bMask = (himl->flags & ILC_MASK) && (fStyle & ILD_MASK) ;
1385 bBlend = (fStyle & (ILD_BLEND25 | ILD_BLEND50) ) && !bMask;
1386
1387 TRACE("himl(%p) hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
1388 himl, himl->hbmMask, pimldp->i, pimldp->x, pimldp->y, cx, cy);
1389
1390 /* we will use these DCs to access the images and masks in the ImageList */
1391 hImageListDC = himl->hdcImage;
1392 hMaskListDC = himl->hdcMask;
1393
1394 /* these will accumulate the image and mask for the image we're drawing */
1395 hImageDC = CreateCompatibleDC( pimldp->hdcDst );
1396 hImageBmp = CreateCompatibleBitmap( pimldp->hdcDst, cx, cy );
1397 hBlendMaskBmp = bBlend ? CreateBitmap(cx, cy, 1, 1, NULL) : 0;
1398
1399 /* Create a compatible DC. */
1400 if (!hImageListDC || !hImageDC || !hImageBmp ||
1401 (bBlend && !hBlendMaskBmp) || (himl->hbmMask && !hMaskListDC))
1402 goto cleanup;
1403
1404 hOldImageBmp = SelectObject(hImageDC, hImageBmp);
1405
1406 /*
1407 * To obtain a transparent look, background color should be set
1408 * to white and foreground color to black when blitting the
1409 * monochrome mask.
1410 */
1411 oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
1412 oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
1413
1414 has_alpha = (himl->has_alpha && himl->has_alpha[pimldp->i]);
1415 if (!bMask && (has_alpha || (fState & ILS_ALPHA)))
1416 {
1417 COLORREF colour, blend_col = CLR_NONE;
1418 BLENDFUNCTION func;
1419
1420 if (bBlend)
1421 {
1422 blend_col = pimldp->rgbFg;
1423 if (blend_col == CLR_DEFAULT) blend_col = GetSysColor( COLOR_HIGHLIGHT );
1424 else if (blend_col == CLR_NONE) blend_col = GetTextColor( pimldp->hdcDst );
1425 }
1426
1427 func.BlendOp = AC_SRC_OVER;
1428 func.BlendFlags = 0;
1429 func.SourceConstantAlpha = (fState & ILS_ALPHA) ? pimldp->Frame : 255;
1430 func.AlphaFormat = AC_SRC_ALPHA;
1431
1432 if (bIsTransparent)
1433 {
1434 bResult = alpha_blend_image( himl, pimldp->hdcDst, pimldp->x, pimldp->y,
1435 pt.x, pt.y, cx, cy, func, fStyle, blend_col );
1436 goto end;
1437 }
1438 colour = pimldp->rgbBk;
1439 if (colour == CLR_DEFAULT) colour = himl->clrBk;
1440 if (colour == CLR_NONE) colour = GetBkColor( pimldp->hdcDst );
1441
1442 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1443 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1444 alpha_blend_image( himl, hImageDC, 0, 0, pt.x, pt.y, cx, cy, func, fStyle, blend_col );
1445 DeleteObject (SelectObject (hImageDC, hOldBrush));
1446 bResult = BitBlt( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCCOPY );
1447 goto end;
1448 }
1449
1450 /*
1451 * Draw the initial image
1452 */
1453 if( bMask ) {
1454 if (himl->hbmMask) {
1455 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (GetTextColor(pimldp->hdcDst)));
1456 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1457 BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCPAINT);
1458 DeleteObject (SelectObject (hImageDC, hOldBrush));
1459 if( bIsTransparent )
1460 {
1461 BitBlt ( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCAND);
1462 bResult = TRUE;
1463 goto end;
1464 }
1465 } else {
1466 hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
1467 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
1468 SelectObject(hImageDC, hOldBrush);
1469 }
1470 } else {
1471 /* blend the image with the needed solid background */
1472 COLORREF colour = RGB(0,0,0);
1473
1474 if( !bIsTransparent )
1475 {
1476 colour = pimldp->rgbBk;
1477 if( colour == CLR_DEFAULT )
1478 colour = himl->clrBk;
1479 if( colour == CLR_NONE )
1480 colour = GetBkColor(pimldp->hdcDst);
1481 }
1482
1483 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1484 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1485 if (himl->hbmMask)
1486 {
1487 BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND );
1488 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCPAINT );
1489 }
1490 else
1491 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCCOPY);
1492 DeleteObject (SelectObject (hImageDC, hOldBrush));
1493 }
1494
1495 /* Time for blending, if required */
1496 if (bBlend) {
1497 HBRUSH hBlendBrush;
1498 COLORREF clrBlend = pimldp->rgbFg;
1499 HDC hBlendMaskDC = hImageListDC;
1500 HBITMAP hOldBitmap;
1501
1502 /* Create the blend Mask */
1503 hOldBitmap = SelectObject(hBlendMaskDC, hBlendMaskBmp);
1504 hBlendBrush = fStyle & ILD_BLEND50 ? himl->hbrBlend50 : himl->hbrBlend25;
1505 hOldBrush = SelectObject(hBlendMaskDC, hBlendBrush);
1506 PatBlt(hBlendMaskDC, 0, 0, cx, cy, PATCOPY);
1507 SelectObject(hBlendMaskDC, hOldBrush);
1508
1509 /* Modify the blend mask if an Image Mask exist */
1510 if(himl->hbmMask) {
1511 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, 0x220326); /* NOTSRCAND */
1512 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, NOTSRCCOPY);
1513 }
1514
1515 /* now apply blend to the current image given the BlendMask */
1516 if (clrBlend == CLR_DEFAULT) clrBlend = GetSysColor (COLOR_HIGHLIGHT);
1517 else if (clrBlend == CLR_NONE) clrBlend = GetTextColor (pimldp->hdcDst);
1518 hOldBrush = SelectObject (hImageDC, CreateSolidBrush(clrBlend));
1519 BitBlt (hImageDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, 0xB8074A); /* PSDPxax */
1520 DeleteObject(SelectObject(hImageDC, hOldBrush));
1521 SelectObject(hBlendMaskDC, hOldBitmap);
1522 }
1523
1524 /* Now do the overlay image, if any */
1525 nOvlIdx = (pimldp->fStyle & ILD_OVERLAYMASK) >> 8;
1526 if ( (nOvlIdx >= 1) && (nOvlIdx <= MAX_OVERLAYIMAGE)) {
1527 nOvlIdx = himl->nOvlIdx[nOvlIdx - 1];
1528 if ((nOvlIdx >= 0) && (nOvlIdx < himl->cCurImage)) {
1529 POINT ptOvl;
1530 imagelist_point_from_index( himl, nOvlIdx, &ptOvl );
1531 ptOvl.x += pimldp->xBitmap;
1532 if (himl->hbmMask && !(fStyle & ILD_IMAGE))
1533 BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ptOvl.x, ptOvl.y, SRCAND);
1534 BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ptOvl.x, ptOvl.y, SRCPAINT);
1535 }
1536 }
1537
1538 if (fState & ILS_SATURATE) FIXME("ILS_SATURATE: unimplemented!\n");
1539 if (fState & ILS_GLOW) FIXME("ILS_GLOW: unimplemented!\n");
1540 if (fState & ILS_SHADOW) FIXME("ILS_SHADOW: unimplemented!\n");
1541
1542 if (fStyle & ILD_PRESERVEALPHA) FIXME("ILD_PRESERVEALPHA: unimplemented!\n");
1543 if (fStyle & ILD_SCALE) FIXME("ILD_SCALE: unimplemented!\n");
1544 if (fStyle & ILD_DPISCALE) FIXME("ILD_DPISCALE: unimplemented!\n");
1545
1546 /* now copy the image to the screen */
1547 dwRop = SRCCOPY;
1548 if (himl->hbmMask && bIsTransparent ) {
1549 COLORREF oldDstFg = SetTextColor(pimldp->hdcDst, RGB( 0, 0, 0 ) );
1550 COLORREF oldDstBk = SetBkColor(pimldp->hdcDst, RGB( 0xff, 0xff, 0xff ));
1551 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND);
1552 SetBkColor(pimldp->hdcDst, oldDstBk);
1553 SetTextColor(pimldp->hdcDst, oldDstFg);
1554 dwRop = SRCPAINT;
1555 }
1556 if (fStyle & ILD_ROP) dwRop = pimldp->dwRop;
1557 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, dwRop);
1558
1559 bResult = TRUE;
1560 end:
1561 /* cleanup the mess */
1562 SetBkColor(hImageDC, oldImageBk);
1563 SetTextColor(hImageDC, oldImageFg);
1564 SelectObject(hImageDC, hOldImageBmp);
1565 cleanup:
1566 DeleteObject(hBlendMaskBmp);
1567 DeleteObject(hImageBmp);
1568 DeleteDC(hImageDC);
1569
1570 return bResult;
1571 }
1572
1573
1574 /*************************************************************************
1575 * ImageList_Duplicate [COMCTL32.@]
1576 *
1577 * Duplicates an image list.
1578 *
1579 * PARAMS
1580 * himlSrc [I] source image list handle
1581 *
1582 * RETURNS
1583 * Success: Handle of duplicated image list.
1584 * Failure: NULL
1585 */
1586
1587 HIMAGELIST WINAPI
1588 ImageList_Duplicate (HIMAGELIST himlSrc)
1589 {
1590 HIMAGELIST himlDst;
1591
1592 if (!is_valid(himlSrc)) {
1593 ERR("Invalid image list handle!\n");
1594 return NULL;
1595 }
1596
1597 himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
1598 himlSrc->cCurImage, himlSrc->cGrow);
1599
1600 if (himlDst)
1601 {
1602 SIZE sz;
1603
1604 imagelist_get_bitmap_size(himlSrc, himlSrc->cCurImage, &sz);
1605 BitBlt (himlDst->hdcImage, 0, 0, sz.cx, sz.cy,
1606 himlSrc->hdcImage, 0, 0, SRCCOPY);
1607
1608 if (himlDst->hbmMask)
1609 BitBlt (himlDst->hdcMask, 0, 0, sz.cx, sz.cy,
1610 himlSrc->hdcMask, 0, 0, SRCCOPY);
1611
1612 himlDst->cCurImage = himlSrc->cCurImage;
1613 if (himlSrc->has_alpha && himlDst->has_alpha)
1614 memcpy( himlDst->has_alpha, himlSrc->has_alpha, himlDst->cCurImage );
1615 }
1616 return himlDst;
1617 }
1618
1619
1620 /*************************************************************************
1621 * ImageList_EndDrag [COMCTL32.@]
1622 *
1623 * Finishes a drag operation.
1624 *
1625 * PARAMS
1626 * no Parameters
1627 *
1628 * RETURNS
1629 * Success: TRUE
1630 * Failure: FALSE
1631 */
1632
1633 VOID WINAPI
1634 ImageList_EndDrag (void)
1635 {
1636 /* cleanup the InternalDrag struct */
1637 InternalDrag.hwnd = 0;
1638 ImageList_Destroy (InternalDrag.himl);
1639 InternalDrag.himl = 0;
1640 InternalDrag.x= 0;
1641 InternalDrag.y= 0;
1642 InternalDrag.dxHotspot = 0;
1643 InternalDrag.dyHotspot = 0;
1644 InternalDrag.bShow = FALSE;
1645 DeleteObject(InternalDrag.hbmBg);
1646 InternalDrag.hbmBg = 0;
1647 }
1648
1649
1650 /*************************************************************************
1651 * ImageList_GetBkColor [COMCTL32.@]
1652 *
1653 * Returns the background color of an image list.
1654 *
1655 * PARAMS
1656 * himl [I] Image list handle.
1657 *
1658 * RETURNS
1659 * Success: background color
1660 * Failure: CLR_NONE
1661 */
1662
1663 COLORREF WINAPI
1664 ImageList_GetBkColor (HIMAGELIST himl)
1665 {
1666 return himl ? himl->clrBk : CLR_NONE;
1667 }
1668
1669
1670 /*************************************************************************
1671 * ImageList_GetDragImage [COMCTL32.@]
1672 *
1673 * Returns the handle to the internal drag image list.
1674 *
1675 * PARAMS
1676 * ppt [O] Pointer to the drag position. Can be NULL.
1677 * pptHotspot [O] Pointer to the position of the hot spot. Can be NULL.
1678 *
1679 * RETURNS
1680 * Success: Handle of the drag image list.
1681 * Failure: NULL.
1682 */
1683
1684 HIMAGELIST WINAPI
1685 ImageList_GetDragImage (POINT *ppt, POINT *pptHotspot)
1686 {
1687 if (is_valid(InternalDrag.himl)) {
1688 if (ppt) {
1689 ppt->x = InternalDrag.x;
1690 ppt->y = InternalDrag.y;
1691 }
1692 if (pptHotspot) {
1693 pptHotspot->x = InternalDrag.dxHotspot;
1694 pptHotspot->y = InternalDrag.dyHotspot;
1695 }
1696 return (InternalDrag.himl);
1697 }
1698
1699 return NULL;
1700 }
1701
1702
1703 /*************************************************************************
1704 * ImageList_GetFlags [COMCTL32.@]
1705 *
1706 * Gets the flags of the specified image list.
1707 *
1708 * PARAMS
1709 * himl [I] Handle to image list
1710 *
1711 * RETURNS
1712 * Image list flags.
1713 *
1714 * BUGS
1715 * Stub.
1716 */
1717
1718 DWORD WINAPI
1719 ImageList_GetFlags(HIMAGELIST himl)
1720 {
1721 TRACE("%p\n", himl);
1722
1723 return is_valid(himl) ? himl->flags : 0;
1724 }
1725
1726
1727 /*************************************************************************
1728 * ImageList_GetIcon [COMCTL32.@]
1729 *
1730 * Creates an icon from a masked image of an image list.
1731 *
1732 * PARAMS
1733 * himl [I] handle to image list
1734 * i [I] image index
1735 * flags [I] drawing style flags
1736 *
1737 * RETURNS
1738 * Success: icon handle
1739 * Failure: NULL
1740 */
1741
1742 HICON WINAPI
1743 ImageList_GetIcon (HIMAGELIST himl, INT i, UINT fStyle)
1744 {
1745 ICONINFO ii;
1746 HICON hIcon;
1747 HBITMAP hOldDstBitmap;
1748 HDC hdcDst;
1749 POINT pt;
1750
1751 TRACE("%p %d %d\n", himl, i, fStyle);
1752 if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
1753
1754 ii.fIcon = TRUE;
1755 ii.xHotspot = 0;
1756 ii.yHotspot = 0;
1757
1758 /* create colour bitmap */
1759 hdcDst = GetDC(0);
1760 ii.hbmColor = CreateCompatibleBitmap(hdcDst, himl->cx, himl->cy);
1761 ReleaseDC(0, hdcDst);
1762
1763 hdcDst = CreateCompatibleDC(0);
1764
1765 imagelist_point_from_index( himl, i, &pt );
1766
1767 /* draw mask*/
1768 ii.hbmMask = CreateBitmap (himl->cx, himl->cy, 1, 1, NULL);
1769 hOldDstBitmap = SelectObject (hdcDst, ii.hbmMask);
1770 if (himl->hbmMask) {
1771 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1772 himl->hdcMask, pt.x, pt.y, SRCCOPY);
1773 }
1774 else
1775 PatBlt (hdcDst, 0, 0, himl->cx, himl->cy, BLACKNESS);
1776
1777 /* draw image*/
1778 SelectObject (hdcDst, ii.hbmColor);
1779 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1780 himl->hdcImage, pt.x, pt.y, SRCCOPY);
1781
1782 /*
1783 * CreateIconIndirect requires us to deselect the bitmaps from
1784 * the DCs before calling
1785 */
1786 SelectObject(hdcDst, hOldDstBitmap);
1787
1788 hIcon = CreateIconIndirect (&ii);
1789
1790 DeleteObject (ii.hbmMask);
1791 DeleteObject (ii.hbmColor);
1792 DeleteDC (hdcDst);
1793
1794 return hIcon;
1795 }
1796
1797
1798 /*************************************************************************
1799 * ImageList_GetIconSize [COMCTL32.@]
1800 *
1801 * Retrieves the size of an image in an image list.
1802 *
1803 * PARAMS
1804 * himl [I] handle to image list
1805 * cx [O] pointer to the image width.
1806 * cy [O] pointer to the image height.
1807 *
1808 * RETURNS
1809 * Success: TRUE
1810 * Failure: FALSE
1811 *
1812 * NOTES
1813 * All images in an image list have the same size.
1814 */
1815
1816 BOOL WINAPI
1817 ImageList_GetIconSize (HIMAGELIST himl, INT *cx, INT *cy)
1818 {
1819 if (!is_valid(himl) || !cx || !cy)
1820 return FALSE;
1821 if ((himl->cx <= 0) || (himl->cy <= 0))
1822 return FALSE;
1823
1824 *cx = himl->cx;
1825 *cy = himl->cy;
1826
1827 return TRUE;
1828 }
1829
1830
1831 /*************************************************************************
1832 * ImageList_GetImageCount [COMCTL32.@]
1833 *
1834 * Returns the number of images in an image list.
1835 *
1836 * PARAMS
1837 * himl [I] handle to image list
1838 *
1839 * RETURNS
1840 * Success: Number of images.
1841 * Failure: 0
1842 */
1843
1844 INT WINAPI
1845 ImageList_GetImageCount (HIMAGELIST himl)
1846 {
1847 if (!is_valid(himl))
1848 return 0;
1849
1850 return himl->cCurImage;
1851 }
1852
1853
1854 /*************************************************************************
1855 * ImageList_GetImageInfo [COMCTL32.@]
1856 *
1857 * Returns information about an image in an image list.
1858 *
1859 * PARAMS
1860 * himl [I] handle to image list
1861 * i [I] image index
1862 * pImageInfo [O] pointer to the image information
1863 *
1864 * RETURNS
1865 * Success: TRUE
1866 * Failure: FALSE
1867 */
1868
1869 BOOL WINAPI
1870 ImageList_GetImageInfo (HIMAGELIST himl, INT i, IMAGEINFO *pImageInfo)
1871 {
1872 POINT pt;
1873
1874 if (!is_valid(himl) || (pImageInfo == NULL))
1875 return FALSE;
1876 if ((i < 0) || (i >= himl->cCurImage))
1877 return FALSE;
1878
1879 pImageInfo->hbmImage = himl->hbmImage;
1880 pImageInfo->hbmMask = himl->hbmMask;
1881
1882 imagelist_point_from_index( himl, i, &pt );
1883 pImageInfo->rcImage.top = pt.y;
1884 pImageInfo->rcImage.bottom = pt.y + himl->cy;
1885 pImageInfo->rcImage.left = pt.x;
1886 pImageInfo->rcImage.right = pt.x + himl->cx;
1887
1888 return TRUE;
1889 }
1890
1891
1892 /*************************************************************************
1893 * ImageList_GetImageRect [COMCTL32.@]
1894 *
1895 * Retrieves the rectangle of the specified image in an image list.
1896 *
1897 * PARAMS
1898 * himl [I] handle to image list
1899 * i [I] image index
1900 * lpRect [O] pointer to the image rectangle
1901 *
1902 * RETURNS
1903 * Success: TRUE
1904 * Failure: FALSE
1905 *
1906 * NOTES
1907 * This is an UNDOCUMENTED function!!!
1908 */
1909
1910 BOOL WINAPI
1911 ImageList_GetImageRect (HIMAGELIST himl, INT i, LPRECT lpRect)
1912 {
1913 POINT pt;
1914
1915 if (!is_valid(himl) || (lpRect == NULL))
1916 return FALSE;
1917 if ((i < 0) || (i >= himl->cCurImage))
1918 return FALSE;
1919
1920 imagelist_point_from_index( himl, i, &pt );
1921 lpRect->left = pt.x;
1922 lpRect->top = pt.y;
1923 lpRect->right = pt.x + himl->cx;
1924 lpRect->bottom = pt.y + himl->cy;
1925
1926 return TRUE;
1927 }
1928
1929
1930 /*************************************************************************
1931 * ImageList_LoadImage [COMCTL32.@]
1932 * ImageList_LoadImageA [COMCTL32.@]
1933 *
1934 * Creates an image list from a bitmap, icon or cursor.
1935 *
1936 * See ImageList_LoadImageW.
1937 */
1938
1939 HIMAGELIST WINAPI
1940 ImageList_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
1941 COLORREF clrMask, UINT uType, UINT uFlags)
1942 {
1943 HIMAGELIST himl;
1944 LPWSTR lpbmpW;
1945 DWORD len;
1946
1947 if (IS_INTRESOURCE(lpbmp))
1948 return ImageList_LoadImageW(hi, (LPCWSTR)lpbmp, cx, cGrow, clrMask,
1949 uType, uFlags);
1950
1951 len = MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, NULL, 0);
1952 lpbmpW = Alloc(len * sizeof(WCHAR));
1953 MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, lpbmpW, len);
1954
1955 himl = ImageList_LoadImageW(hi, lpbmpW, cx, cGrow, clrMask, uType, uFlags);
1956 Free (lpbmpW);
1957 return himl;
1958 }
1959
1960
1961 /*************************************************************************
1962 * ImageList_LoadImageW [COMCTL32.@]
1963 *
1964 * Creates an image list from a bitmap, icon or cursor.
1965 *
1966 * PARAMS
1967 * hi [I] instance handle
1968 * lpbmp [I] name or id of the image
1969 * cx [I] width of each image
1970 * cGrow [I] number of images to expand
1971 * clrMask [I] mask color
1972 * uType [I] type of image to load
1973 * uFlags [I] loading flags
1974 *
1975 * RETURNS
1976 * Success: handle to the loaded image list
1977 * Failure: NULL
1978 *
1979 * SEE
1980 * LoadImage ()
1981 */
1982
1983 HIMAGELIST WINAPI
1984 ImageList_LoadImageW (HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow,
1985 COLORREF clrMask, UINT uType, UINT uFlags)
1986 {
1987 HIMAGELIST himl = NULL;
1988 HANDLE handle;
1989 INT nImageCount;
1990
1991 handle = LoadImageW (hi, lpbmp, uType, 0, 0, uFlags);
1992 if (!handle) {
1993 WARN("Couldn't load image\n");
1994 return NULL;
1995 }
1996
1997 if (uType == IMAGE_BITMAP) {
1998 DIBSECTION dib;
1999 UINT color;
2000
2001 if (GetObjectW (handle, sizeof(dib), &dib) == sizeof(BITMAP)) color = ILC_COLOR;
2002 else color = dib.dsBm.bmBitsPixel;
2003
2004 /* To match windows behavior, if cx is set to zero and
2005 the flag DI_DEFAULTSIZE is specified, cx becomes the
2006 system metric value for icons. If the flag is not specified
2007 the function sets the size to the height of the bitmap */
2008 if (cx == 0)
2009 {
2010 if (uFlags & DI_DEFAULTSIZE)
2011 cx = GetSystemMetrics (SM_CXICON);
2012 else
2013 cx = dib.dsBm.bmHeight;
2014 }
2015
2016 nImageCount = dib.dsBm.bmWidth / cx;
2017
2018 himl = ImageList_Create (cx, dib.dsBm.bmHeight, ILC_MASK | color, nImageCount, cGrow);
2019 if (!himl) {
2020 DeleteObject (handle);
2021 return NULL;
2022 }
2023 ImageList_AddMasked (himl, handle, clrMask);
2024 }
2025 else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
2026 ICONINFO ii;
2027 BITMAP bmp;
2028
2029 GetIconInfo (handle, &ii);
2030 GetObjectW (ii.hbmColor, sizeof(BITMAP), &bmp);
2031 himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
2032 ILC_MASK | ILC_COLOR, 1, cGrow);
2033 if (!himl) {
2034 DeleteObject (ii.hbmColor);
2035 DeleteObject (ii.hbmMask);
2036 DeleteObject (handle);
2037 return NULL;
2038 }
2039 ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
2040 DeleteObject (ii.hbmColor);
2041 DeleteObject (ii.hbmMask);
2042 }
2043
2044 DeleteObject (handle);
2045
2046 return himl;
2047 }
2048
2049
2050 /*************************************************************************
2051 * ImageList_Merge [COMCTL32.@]
2052 *
2053 * Create an image list containing a merged image from two image lists.
2054 *
2055 * PARAMS
2056 * himl1 [I] handle to first image list
2057 * i1 [I] first image index
2058 * himl2 [I] handle to second image list
2059 * i2 [I] second image index
2060 * dx [I] X offset of the second image relative to the first.
2061 * dy [I] Y offset of the second image relative to the first.
2062 *
2063 * RETURNS
2064 * Success: The newly created image list. It contains a single image
2065 * consisting of the second image merged with the first.
2066 * Failure: NULL, if either himl1 or himl2 are invalid.
2067 *
2068 * NOTES
2069 * - The returned image list should be deleted by the caller using
2070 * ImageList_Destroy() when it is no longer required.
2071 * - If either i1 or i2 are not valid image indices they will be treated
2072 * as a blank image.
2073 */
2074 HIMAGELIST WINAPI
2075 ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
2076 INT dx, INT dy)
2077 {
2078 HIMAGELIST himlDst = NULL;
2079 INT cxDst, cyDst;
2080 INT xOff1, yOff1, xOff2, yOff2;
2081 POINT pt1, pt2;
2082
2083 TRACE("(himl1=%p i1=%d himl2=%p i2=%d dx=%d dy=%d)\n", himl1, i1, himl2,
2084 i2, dx, dy);
2085
2086 if (!is_valid(himl1) || !is_valid(himl2))
2087 return NULL;
2088
2089 if (dx > 0) {
2090 cxDst = max (himl1->cx, dx + himl2->cx);
2091 xOff1 = 0;
2092 xOff2 = dx;
2093 }
2094 else if (dx < 0) {
2095 cxDst = max (himl2->cx, himl1->cx - dx);
2096 xOff1 = -dx;
2097 xOff2 = 0;
2098 }
2099 else {
2100 cxDst = max (himl1->cx, himl2->cx);
2101 xOff1 = 0;
2102 xOff2 = 0;
2103 }
2104
2105 if (dy > 0) {
2106 cyDst = max (himl1->cy, dy + himl2->cy);
2107 yOff1 = 0;
2108 yOff2 = dy;
2109 }
2110 else if (dy < 0) {
2111 cyDst = max (himl2->cy, himl1->cy - dy);
2112 yOff1 = -dy;
2113 yOff2 = 0;
2114 }
2115 else {
2116 cyDst = max (himl1->cy, himl2->cy);
2117 yOff1 = 0;
2118 yOff2 = 0;
2119 }
2120
2121 himlDst = ImageList_Create (cxDst, cyDst, ILC_MASK | ILC_COLOR, 1, 1);
2122
2123 if (himlDst)
2124 {
2125 imagelist_point_from_index( himl1, i1, &pt1 );
2126 imagelist_point_from_index( himl2, i2, &pt2 );
2127
2128 /* copy image */
2129 BitBlt (himlDst->hdcImage, 0, 0, cxDst, cyDst, himl1->hdcImage, 0, 0, BLACKNESS);
2130 if (i1 >= 0 && i1 < himl1->cCurImage)
2131 BitBlt (himlDst->hdcImage, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcImage, pt1.x, pt1.y, SRCCOPY);
2132 if (i2 >= 0 && i2 < himl2->cCurImage)
2133 {
2134 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask , pt2.x, pt2.y, SRCAND);
2135 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcImage, pt2.x, pt2.y, SRCPAINT);
2136 }
2137
2138 /* copy mask */
2139 BitBlt (himlDst->hdcMask, 0, 0, cxDst, cyDst, himl1->hdcMask, 0, 0, WHITENESS);
2140 if (i1 >= 0 && i1 < himl1->cCurImage)
2141 BitBlt (himlDst->hdcMask, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcMask, pt1.x, pt1.y, SRCCOPY);
2142 if (i2 >= 0 && i2 < himl2->cCurImage)
2143 BitBlt (himlDst->hdcMask, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask, pt2.x, pt2.y, SRCAND);
2144
2145 himlDst->cCurImage = 1;
2146 }
2147
2148 return himlDst;
2149 }
2150
2151
2152 /* helper for ImageList_Read, see comments below */
2153 static void *read_bitmap(LPSTREAM pstm, BITMAPINFO *bmi)
2154 {
2155 BITMAPFILEHEADER bmfh;
2156 int bitsperpixel, palspace;
2157 void *bits;
2158
2159 if (FAILED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)))
2160 return NULL;
2161
2162 if (bmfh.bfType != (('M'<<8)|'B'))
2163 return NULL;
2164
2165 if (FAILED(IStream_Read ( pstm, &bmi->bmiHeader, sizeof(bmi->bmiHeader), NULL)))
2166 return NULL;
2167
2168 if ((bmi->bmiHeader.biSize != sizeof(bmi->bmiHeader)))
2169 return NULL;
2170
2171 TRACE("width %u, height %u, planes %u, bpp %u\n",
2172 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
2173 bmi->bmiHeader.biPlanes, bmi->bmiHeader.biBitCount);
2174
2175 bitsperpixel = bmi->bmiHeader.biPlanes * bmi->bmiHeader.biBitCount;
2176 if (bitsperpixel<=8)
2177 palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
2178 else
2179 palspace = 0;
2180
2181 bmi->bmiHeader.biSizeImage = get_dib_image_size( bmi );
2182
2183 /* read the palette right after the end of the bitmapinfoheader */
2184 if (palspace && FAILED(IStream_Read(pstm, bmi->bmiColors, palspace, NULL)))
2185 return NULL;
2186
2187 bits = Alloc(bmi->bmiHeader.biSizeImage);
2188 if (!bits) return NULL;
2189
2190 if (FAILED(IStream_Read(pstm, bits, bmi->bmiHeader.biSizeImage, NULL)))
2191 {
2192 Free(bits);
2193 return NULL;
2194 }
2195 return bits;
2196 }
2197
2198 /*************************************************************************
2199 * ImageList_Read [COMCTL32.@]
2200 *
2201 * Reads an image list from a stream.
2202 *
2203 * PARAMS
2204 * pstm [I] pointer to a stream
2205 *
2206 * RETURNS
2207 * Success: handle to image list
2208 * Failure: NULL
2209 *
2210 * The format is like this:
2211 * ILHEAD ilheadstruct;
2212 *
2213 * for the color image part:
2214 * BITMAPFILEHEADER bmfh;
2215 * BITMAPINFOHEADER bmih;
2216 * only if it has a palette:
2217 * RGBQUAD rgbs[nr_of_paletted_colors];
2218 *
2219 * BYTE colorbits[imagesize];
2220 *
2221 * the following only if the ILC_MASK bit is set in ILHEAD.ilFlags:
2222 * BITMAPFILEHEADER bmfh_mask;
2223 * BITMAPINFOHEADER bmih_mask;
2224 * only if it has a palette (it usually does not):
2225 * RGBQUAD rgbs[nr_of_paletted_colors];
2226 *
2227 * BYTE maskbits[imagesize];
2228 */
2229 HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
2230 {
2231 char image_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
2232 char mask_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
2233 BITMAPINFO *image_info = (BITMAPINFO *)image_buf;
2234 BITMAPINFO *mask_info = (BITMAPINFO *)mask_buf;
2235 void *image_bits, *mask_bits = NULL;
2236 ILHEAD ilHead;
2237 HIMAGELIST himl;
2238 int i;
2239
2240 TRACE("%p\n", pstm);
2241
2242 if (FAILED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL)))
2243 return NULL;
2244 if (ilHead.usMagic != (('L' << 8) | 'I'))
2245 return NULL;
2246 if (ilHead.usVersion != 0x101) /* probably version? */
2247 return NULL;
2248
2249 TRACE("cx %u, cy %u, flags 0x%04x, cCurImage %u, cMaxImage %u\n",
2250 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2251
2252 himl = ImageList_Create(ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
2253 if (!himl)
2254 return NULL;
2255
2256 if (!(image_bits = read_bitmap(pstm, image_info)))
2257 {
2258 WARN("failed to read bitmap from stream\n");
2259 return NULL;
2260 }
2261 if (ilHead.flags & ILC_MASK)
2262 {
2263 if (!(mask_bits = read_bitmap(pstm, mask_info)))
2264 {
2265 WARN("failed to read mask bitmap from stream\n");
2266 return NULL;
2267 }
2268 }
2269 else mask_info = NULL;
2270
2271 if (himl->has_alpha && image_info->bmiHeader.biBitCount == 32)
2272 {
2273 DWORD *ptr = image_bits;
2274 BYTE *mask_ptr = mask_bits;
2275 int stride = himl->cy * image_info->bmiHeader.biWidth;
2276
2277 if (image_info->bmiHeader.biHeight > 0) /* bottom-up */
2278 {
2279 ptr += image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride;
2280 mask_ptr += (image_info->bmiHeader.biHeight * image_info->bmiHeader.biWidth - stride) / 8;
2281 stride = -stride;
2282 image_info->bmiHeader.biHeight = himl->cy;
2283 }
2284 else image_info->bmiHeader.biHeight = -himl->cy;
2285
2286 for (i = 0; i < ilHead.cCurImage; i += TILE_COUNT)
2287 {
2288 add_dib_bits( himl, i, min( ilHead.cCurImage - i, TILE_COUNT ),
2289 himl->cx, himl->cy, image_info, mask_info, ptr, mask_ptr );
2290 ptr += stride;
2291 mask_ptr += stride / 8;
2292 }
2293 }
2294 else
2295 {
2296 StretchDIBits( himl->hdcImage, 0, 0, image_info->bmiHeader.biWidth, image_info->bmiHeader.biHeight,
2297 0, 0, image_info->bmiHeader.biWidth, image_info->bmiHeader.biHeight,
2298 image_bits, image_info, DIB_RGB_COLORS, SRCCOPY);
2299 if (mask_info)
2300 StretchDIBits( himl->hdcMask, 0, 0, mask_info->bmiHeader.biWidth, mask_info->bmiHeader.biHeight,
2301 0, 0, mask_info->bmiHeader.biWidth, mask_info->bmiHeader.biHeight,
2302 mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY);
2303 }
2304 Free( image_bits );
2305 Free( mask_bits );
2306
2307 himl->cCurImage = ilHead.cCurImage;
2308 himl->cMaxImage = ilHead.cMaxImage;
2309
2310 ImageList_SetBkColor(himl,ilHead.bkcolor);
2311 for (i=0;i<4;i++)
2312 ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1);
2313 return himl;
2314 }
2315
2316
2317 /*************************************************************************
2318 * ImageList_Remove [COMCTL32.@]
2319 *
2320 * Removes an image from an image list
2321 *
2322 * PARAMS
2323 * himl [I] image list handle
2324 * i [I] image index
2325 *
2326 * RETURNS
2327 * Success: TRUE
2328 * Failure: FALSE
2329 *
2330 * FIXME: as the image list storage test shows, native comctl32 simply shifts
2331 * images without creating a new bitmap.
2332 */
2333 BOOL WINAPI
2334 ImageList_Remove (HIMAGELIST himl, INT i)
2335 {
2336 HBITMAP hbmNewImage, hbmNewMask;
2337 HDC hdcBmp;
2338 SIZE sz;
2339
2340 TRACE("(himl=%p i=%d)\n", himl, i);
2341
2342 if (!is_valid(himl)) {
2343 ERR("Invalid image list handle!\n");
2344 return FALSE;
2345 }
2346
2347 if ((i < -1) || (i >= himl->cCurImage)) {
2348 TRACE("index out of range! %d\n", i);
2349 return FALSE;
2350 }
2351
2352 if (i == -1) {
2353 INT nCount;
2354
2355 /* remove all */
2356 if (himl->cCurImage == 0) {
2357 /* remove all on empty ImageList is allowed */
2358 TRACE("remove all on empty ImageList!\n");
2359 return TRUE;
2360 }
2361
2362 himl->cMaxImage = himl->cGrow;
2363 himl->cCurImage = 0;
2364 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2365 himl->nOvlIdx[nCount] = -1;
2366
2367 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2368 SelectObject (himl->hdcImage, hbmNewImage);
2369 DeleteObject (himl->hbmImage);
2370 himl->hbmImage = hbmNewImage;
2371
2372 if (himl->hbmMask) {
2373
2374 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2375 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2376 SelectObject (himl->hdcMask, hbmNewMask);
2377 DeleteObject (himl->hbmMask);
2378 himl->hbmMask = hbmNewMask;
2379 }
2380 }
2381 else {
2382 /* delete one image */
2383 TRACE("Remove single image! %d\n", i);
2384
2385 /* create new bitmap(s) */
2386 TRACE(" - Number of images: %d / %d (Old/New)\n",
2387 himl->cCurImage, himl->cCurImage - 1);
2388
2389 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2390
2391 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz );
2392 if (himl->hbmMask)
2393 hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2394 else
2395 hbmNewMask = 0; /* Just to keep compiler happy! */
2396
2397 hdcBmp = CreateCompatibleDC (0);
2398
2399 /* copy all images and masks prior to the "removed" image */
2400 if (i > 0) {
2401 TRACE("Pre image copy: Copy %d images\n", i);
2402
2403 SelectObject (hdcBmp, hbmNewImage);
2404 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, 0, i, 0 );
2405
2406 if (himl->hbmMask) {
2407 SelectObject (hdcBmp, hbmNewMask);
2408 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, 0, i, 0 );
2409 }
2410 }
2411
2412 /* copy all images and masks behind the removed image */
2413 if (i < himl->cCurImage - 1) {
2414 TRACE("Post image copy!\n");
2415
2416 SelectObject (hdcBmp, hbmNewImage);
2417 imagelist_copy_images( himl, himl->hdcImage, hdcBmp, i + 1,
2418 (himl->cCurImage - i), i );
2419
2420 if (himl->hbmMask) {
2421 SelectObject (hdcBmp, hbmNewMask);
2422 imagelist_copy_images( himl, himl->hdcMask, hdcBmp, i + 1,
2423 (himl->cCurImage - i), i );
2424 }
2425 }
2426
2427 DeleteDC (hdcBmp);
2428
2429 /* delete old images and insert new ones */
2430 SelectObject (himl->hdcImage, hbmNewImage);
2431 DeleteObject (himl->hbmImage);
2432 himl->hbmImage = hbmNewImage;
2433 if (himl->hbmMask) {
2434 SelectObject (himl->hdcMask, hbmNewMask);
2435 DeleteObject (himl->hbmMask);
2436 himl->hbmMask = hbmNewMask;
2437 }
2438
2439 himl->cCurImage--;
2440 }
2441
2442 return TRUE;
2443 }
2444
2445
2446 /*************************************************************************
2447 * ImageList_Replace [COMCTL32.@]
2448 *
2449 * Replaces an image in an image list with a new image.
2450 *
2451 * PARAMS
2452 * himl [I] handle to image list
2453 * i [I] image index
2454 * hbmImage [I] handle to image bitmap
2455 * hbmMask [I] handle to mask bitmap. Can be NULL.
2456 *
2457 * RETURNS
2458 * Success: TRUE
2459 * Failure: FALSE
2460 */
2461
2462 BOOL WINAPI
2463 ImageList_Replace (HIMAGELIST himl, INT i, HBITMAP hbmImage,
2464 HBITMAP hbmMask)
2465 {
2466 HDC hdcImage;
2467 BITMAP bmp;
2468 POINT pt;
2469
2470 TRACE("%p %d %p %p\n", himl, i, hbmImage, hbmMask);
2471
2472 if (!is_valid(himl)) {
2473 ERR("Invalid image list handle!\n");
2474 return FALSE;
2475 }
2476
2477 if ((i >= himl->cMaxImage) || (i < 0)) {
2478 ERR("Invalid image index!\n");
2479 return FALSE;
2480 }
2481
2482 if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
2483 return FALSE;
2484
2485 hdcImage = CreateCompatibleDC (0);
2486
2487 /* Replace Image */
2488 SelectObject (hdcImage, hbmImage);
2489
2490 if (add_with_alpha( himl, hdcImage, i, 1, bmp.bmWidth, bmp.bmHeight, hbmImage, hbmMask ))
2491 goto done;
2492
2493 imagelist_point_from_index(himl, i, &pt);
2494 StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
2495 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2496
2497 if (himl->hbmMask)
2498 {
2499 HDC hdcTemp;
2500 HBITMAP hOldBitmapTemp;
2501
2502 hdcTemp = CreateCompatibleDC(0);
2503 hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
2504
2505 StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
2506 hdcTemp, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2507 SelectObject(hdcTemp, hOldBitmapTemp);
2508 DeleteDC(hdcTemp);
2509
2510 /* Remove the background from the image
2511 */
2512 BitBlt (himl->hdcImage, pt.x, pt.y, bmp.bmWidth, bmp.bmHeight,
2513 himl->hdcMask, pt.x, pt.y, 0x220326); /* NOTSRCAND */
2514 }
2515
2516 done:
2517 DeleteDC (hdcImage);
2518
2519 return TRUE;
2520 }
2521
2522
2523 /*************************************************************************
2524 * ImageList_ReplaceIcon [COMCTL32.@]
2525 *
2526 * Replaces an image in an image list using an icon.
2527 *
2528 * PARAMS
2529 * himl [I] handle to image list
2530 * i [I] image index
2531 * hIcon [I] handle to icon
2532 *
2533 * RETURNS
2534 * Success: index of the replaced image
2535 * Failure: -1
2536 */
2537
2538 INT WINAPI
2539 ImageList_ReplaceIcon (HIMAGELIST himl, INT nIndex, HICON hIcon)
2540 {
2541 HICON hBestFitIcon;
2542 ICONINFO ii;
2543 BITMAP bmp;
2544 BOOL ret;
2545 POINT pt;
2546
2547 TRACE("(%p %d %p)\n", himl, nIndex, hIcon);
2548
2549 if (!is_valid(himl)) {
2550 ERR("invalid image list\n");
2551 return -1;
2552 }
2553 if ((nIndex >= himl->cMaxImage) || (nIndex < -1)) {
2554 ERR("invalid image index %d / %d\n", nIndex, himl->cMaxImage);
2555 return -1;
2556 }
2557
2558 hBestFitIcon = CopyImage(
2559 hIcon, IMAGE_ICON,
2560 himl->cx, himl->cy,
2561 LR_COPYFROMRESOURCE);
2562 /* the above will fail if the icon wasn't loaded from a resource, so try
2563 * again without LR_COPYFROMRESOURCE flag */
2564 if (!hBestFitIcon)
2565 hBestFitIcon = CopyImage(
2566 hIcon, IMAGE_ICON,
2567 himl->cx, himl->cy,
2568 0);
2569 if (!hBestFitIcon)
2570 return -1;
2571
2572 if (nIndex == -1) {
2573 if (himl->cCurImage + 1 >= himl->cMaxImage)
2574 IMAGELIST_InternalExpandBitmaps(himl, 1);
2575
2576 nIndex = himl->cCurImage;
2577 himl->cCurImage++;
2578 }
2579
2580 if (himl->has_alpha && GetIconInfo (hBestFitIcon, &ii))
2581 {
2582 HDC hdcImage = CreateCompatibleDC( 0 );
2583 GetObjectW (ii.hbmMask, sizeof(BITMAP), &bmp);
2584
2585 if (!ii.hbmColor)
2586 {
2587 UINT height = bmp.bmHeight / 2;
2588 HDC hdcMask = CreateCompatibleDC( 0 );
2589 HBITMAP color = CreateBitmap( bmp.bmWidth, height, 1, 1, NULL );
2590 SelectObject( hdcImage, color );
2591 SelectObject( hdcMask, ii.hbmMask );
2592 BitBlt( hdcImage, 0, 0, bmp.bmWidth, height, hdcMask, 0, height, SRCCOPY );
2593 ret = add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, height, color, ii.hbmMask );
2594 DeleteDC( hdcMask );
2595 DeleteObject( color );
2596 }
2597 else ret = add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, bmp.bmHeight,
2598 ii.hbmColor, ii.hbmMask );
2599
2600 DeleteDC( hdcImage );
2601 DeleteObject (ii.hbmMask);
2602 if (ii.hbmColor) DeleteObject (ii.hbmColor);
2603 if (ret) goto done;
2604 }
2605
2606 imagelist_point_from_index(himl, nIndex, &pt);
2607
2608 if (himl->hbmMask)
2609 {
2610 DrawIconEx( himl->hdcImage, pt.x, pt.y, hBestFitIcon, himl->cx, himl->cy, 0, 0, DI_IMAGE );
2611 PatBlt( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy, WHITENESS );
2612 DrawIconEx( himl->hdcMask, pt.x, pt.y, hBestFitIcon, himl->cx, himl->cy, 0, 0, DI_MASK );
2613 }
2614 else
2615 {
2616 COLORREF color = himl->clrBk != CLR_NONE ? himl->clrBk : comctl32_color.clrWindow;
2617 HBRUSH brush = CreateSolidBrush( GetNearestColor( himl->hdcImage, color ));
2618
2619 SelectObject( himl->hdcImage, brush );
2620 PatBlt( himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy, PATCOPY );
2621 SelectObject( himl->hdcImage, GetStockObject(BLACK_BRUSH) );
2622 DeleteObject( brush );
2623 DrawIconEx( himl->hdcImage, pt.x, pt.y, hBestFitIcon, himl->cx, himl->cy, 0, 0, DI_NORMAL );
2624 }
2625
2626 done:
2627 DestroyIcon(hBestFitIcon);
2628
2629 TRACE("Insert index = %d, himl->cCurImage = %d\n", nIndex, himl->cCurImage);
2630 return nIndex;
2631 }
2632
2633
2634 /*************************************************************************
2635 * ImageList_SetBkColor [COMCTL32.@]
2636 *
2637 * Sets the background color of an image list.
2638 *
2639 * PARAMS
2640 * himl [I] handle to image list
2641 * clrBk [I] background color
2642 *
2643 * RETURNS
2644 * Success: previous background color
2645 * Failure: CLR_NONE
2646 */
2647
2648 COLORREF WINAPI
2649 ImageList_SetBkColor (HIMAGELIST himl, COLORREF clrBk)
2650 {
2651 COLORREF clrOldBk;
2652
2653 if (!is_valid(himl))
2654 return CLR_NONE;
2655
2656 clrOldBk = himl->clrBk;
2657 himl->clrBk = clrBk;
2658 return clrOldBk;
2659 }
2660
2661
2662 /*************************************************************************
2663 * ImageList_SetDragCursorImage [COMCTL32.@]
2664 *
2665 * Combines the specified image with the current drag image
2666 *
2667 * PARAMS
2668 * himlDrag [I] handle to drag image list
2669 * iDrag [I] drag image index
2670 * dxHotspot [I] X position of the hot spot
2671 * dyHotspot [I] Y position of the hot spot
2672 *
2673 * RETURNS
2674 * Success: TRUE
2675 * Failure: FALSE
2676 *
2677 * NOTES
2678 * - The names dxHotspot, dyHotspot are misleading because they have nothing
2679 * to do with a hotspot but are only the offset of the origin of the new
2680 * image relative to the origin of the old image.
2681 *
2682 * - When this function is called and the drag image is visible, a
2683 * short flickering occurs but this matches the Win9x behavior. It is
2684 * possible to fix the flickering using code like in ImageList_DragMove.
2685 */
2686
2687 BOOL WINAPI
2688 ImageList_SetDragCursorImage (HIMAGELIST himlDrag, INT iDrag,
2689 INT dxHotspot, INT dyHotspot)
2690 {
2691 HIMAGELIST himlTemp;
2692 BOOL visible;
2693
2694 if (!is_valid(InternalDrag.himl) || !is_valid(himlDrag))
2695 return FALSE;
2696
2697 TRACE(" dxH=%d dyH=%d nX=%d nY=%d\n",
2698 dxHotspot, dyHotspot, InternalDrag.dxHotspot, InternalDrag.dyHotspot);
2699
2700 visible = InternalDrag.bShow;
2701
2702 himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag,
2703 dxHotspot, dyHotspot);
2704
2705 if (visible) {
2706 /* hide the drag image */
2707 ImageList_DragShowNolock(FALSE);
2708 }
2709 if ((InternalDrag.himl->cx != himlTemp->cx) ||
2710 (InternalDrag.himl->cy != himlTemp->cy)) {
2711 /* the size of the drag image changed, invalidate the buffer */
2712 DeleteObject(InternalDrag.hbmBg);
2713 InternalDrag.hbmBg = 0;
2714 }
2715
2716 ImageList_Destroy (InternalDrag.himl);
2717 InternalDrag.himl = himlTemp;
2718
2719 if (visible) {
2720 /* show the drag image */
2721 ImageList_DragShowNolock(TRUE);
2722 }
2723
2724 return TRUE;
2725 }
2726
2727
2728 /*************************************************************************
2729 * ImageList_SetFilter [COMCTL32.@]
2730 *
2731 * Sets a filter (or does something completely different)!!???
2732 * It removes 12 Bytes from the stack (3 Parameters).
2733 *
2734 * PARAMS
2735 * himl [I] SHOULD be a handle to image list
2736 * i [I] COULD be an index?
2737 * dwFilter [I] ???
2738 *
2739 * RETURNS
2740 * Success: TRUE ???
2741 * Failure: FALSE ???
2742 *
2743 * BUGS
2744 * This is an UNDOCUMENTED function!!!!
2745 * empty stub.
2746 */
2747
2748 BOOL WINAPI
2749 ImageList_SetFilter (HIMAGELIST himl, INT i, DWORD dwFilter)
2750 {
2751 FIXME("(%p 0x%x 0x%x):empty stub!\n", himl, i, dwFilter);
2752
2753 return FALSE;
2754 }
2755
2756
2757 /*************************************************************************
2758 * ImageList_SetFlags [COMCTL32.@]
2759 *
2760 * Sets the image list flags.
2761 *
2762 * PARAMS
2763 * himl [I] Handle to image list
2764 * flags [I] Flags to set
2765 *
2766 * RETURNS
2767 * Old flags?
2768 *
2769 * BUGS
2770 * Stub.
2771 */
2772
2773 DWORD WINAPI
2774 ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
2775 {
2776 FIXME("(%p %08x):empty stub\n", himl, flags);
2777 return 0;
2778 }
2779
2780
2781 /*************************************************************************
2782 * ImageList_SetIconSize [COMCTL32.@]
2783 *
2784 * Sets the image size of the bitmap and deletes all images.
2785 *
2786 * PARAMS
2787 * himl [I] handle to image list
2788 * cx [I] image width
2789 * cy [I] image height
2790 *
2791 * RETURNS
2792 * Success: TRUE
2793 * Failure: FALSE
2794 */
2795
2796 BOOL WINAPI
2797 ImageList_SetIconSize (HIMAGELIST himl, INT cx, INT cy)
2798 {
2799 INT nCount;
2800 HBITMAP hbmNew;
2801
2802 if (!is_valid(himl))
2803 return FALSE;
2804
2805 /* remove all images */
2806 himl->cMaxImage = himl->cInitial + 1;
2807 himl->cCurImage = 0;
2808 himl->cx = cx;
2809 himl->cy = cy;
2810
2811 /* initialize overlay mask indices */
2812 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2813 himl->nOvlIdx[nCount] = -1;
2814
2815 hbmNew = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
2816 SelectObject (himl->hdcImage, hbmNew);
2817 DeleteObject (himl->hbmImage);
2818 himl->hbmImage = hbmNew;
2819
2820 if (himl->hbmMask) {
2821 SIZE sz;
2822 imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
2823 hbmNew = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2824 SelectObject (himl->hdcMask, hbmNew);
2825 DeleteObject (himl->hbmMask);
2826 himl->hbmMask = hbmNew;
2827 }
2828
2829 return TRUE;
2830 }
2831
2832
2833 /*************************************************************************
2834 * ImageList_SetImageCount [COMCTL32.@]
2835 *
2836 * Resizes an image list to the specified number of images.
2837 *
2838 * PARAMS
2839 * himl [I] handle to image list
2840 * iImageCount [I] number of images in the image list
2841 *
2842 * RETURNS
2843 * Success: TRUE
2844 * Failure: FALSE
2845 */
2846
2847 BOOL WINAPI
2848 ImageList_SetImageCount (HIMAGELIST himl, UINT iImageCount)
2849 {
2850 HDC hdcBitmap;
2851 HBITMAP hbmNewBitmap, hbmOld;
2852 INT nNewCount, nCopyCount;
2853
2854 TRACE("%p %d\n",himl,iImageCount);
2855
2856 if (!is_valid(himl))
2857 return FALSE;
2858
2859 nNewCount = iImageCount + 1;
2860 nCopyCount = min(himl->cCurImage, iImageCount);
2861
2862 hdcBitmap = CreateCompatibleDC (0);
2863
2864 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
2865
2866 if (hbmNewBitmap != 0)
2867 {
2868 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2869 imagelist_copy_images( himl, himl->hdcImage, hdcBitmap, 0, nCopyCount, 0 );
2870 SelectObject (hdcBitmap, hbmOld);
2871
2872 /* FIXME: delete 'empty' image space? */
2873
2874 SelectObject (himl->hdcImage, hbmNewBitmap);
2875 DeleteObject (himl->hbmImage);
2876 himl->hbmImage = hbmNewBitmap;
2877 }
2878 else
2879 ERR("Could not create new image bitmap !\n");
2880
2881 if (himl->hbmMask)
2882 {
2883 SIZE sz;
2884 imagelist_get_bitmap_size( himl, nNewCount, &sz );
2885 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
2886 if (hbmNewBitmap != 0)
2887 {
2888 hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
2889 imagelist_copy_images( himl, himl->hdcMask, hdcBitmap, 0, nCopyCount, 0 );
2890 SelectObject (hdcBitmap, hbmOld);
2891
2892 /* FIXME: delete 'empty' image space? */
2893
2894 SelectObject (himl->hdcMask, hbmNewBitmap);
2895 DeleteObject (himl->hbmMask);
2896 himl->hbmMask = hbmNewBitmap;
2897 }
2898 else
2899 ERR("Could not create new mask bitmap!\n");
2900 }
2901
2902 DeleteDC (hdcBitmap);
2903
2904 if (himl->has_alpha)
2905 {
2906 char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
2907 if (new_alpha) himl->has_alpha = new_alpha;
2908 else
2909 {
2910 HeapFree( GetProcessHeap(), 0, himl->has_alpha );
2911 himl->has_alpha = NULL;
2912 }
2913 }
2914
2915 /* Update max image count and current image count */
2916 himl->cMaxImage = nNewCount;
2917 himl->cCurImage = iImageCount;
2918
2919 return TRUE;
2920 }
2921
2922
2923 /*************************************************************************
2924 * ImageList_SetOverlayImage [COMCTL32.@]
2925 *
2926 * Assigns an overlay mask index to an existing image in an image list.
2927 *
2928 * PARAMS
2929 * himl [I] handle to image list
2930 * iImage [I] image index
2931 * iOverlay [I] overlay mask index
2932 *
2933 * RETURNS
2934 * Success: TRUE
2935 * Failure: FALSE
2936 */
2937
2938 BOOL WINAPI
2939 ImageList_SetOverlayImage (HIMAGELIST himl, INT iImage, INT iOverlay)
2940 {
2941 if (!is_valid(himl))
2942 return FALSE;
2943 if ((iOverlay < 1) || (iOverlay > MAX_OVERLAYIMAGE))
2944 return FALSE;
2945 if ((iImage!=-1) && ((iImage < 0) || (iImage > himl->cCurImage)))
2946 return FALSE;
2947 himl->nOvlIdx[iOverlay - 1] = iImage;
2948 return TRUE;
2949 }
2950
2951
2952
2953 /* helper for ImageList_Write - write bitmap to pstm
2954 * currently everything is written as 24 bit RGB, except masks
2955 */
2956 static BOOL
2957 _write_bitmap(HBITMAP hBitmap, LPSTREAM pstm)
2958 {
2959 LPBITMAPFILEHEADER bmfh;
2960 LPBITMAPINFOHEADER bmih;
2961 LPBYTE data = NULL, lpBits;
2962 BITMAP bm;
2963 INT bitCount, sizeImage, offBits, totalSize;
2964 HDC xdc;
2965 BOOL result = FALSE;
2966
2967 if (!GetObjectW(hBitmap, sizeof(BITMAP), &bm))
2968 return FALSE;
2969
2970 bitCount = bm.bmBitsPixel;
2971 sizeImage = get_dib_stride(bm.bmWidth, bitCount) * bm.bmHeight;
2972
2973 totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
2974 if(bitCount <= 8)
2975 totalSize += (1 << bitCount) * sizeof(RGBQUAD);
2976 offBits = totalSize;
2977 totalSize += sizeImage;
2978
2979 data = Alloc(totalSize);
2980 bmfh = (LPBITMAPFILEHEADER)data;
2981 bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
2982 lpBits = data + offBits;
2983
2984 /* setup BITMAPFILEHEADER */
2985 bmfh->bfType = (('M' << 8) | 'B');
2986 bmfh->bfSize = offBits;
2987 bmfh->bfReserved1 = 0;
2988 bmfh->bfReserved2 = 0;
2989 bmfh->bfOffBits = offBits;
2990
2991 /* setup BITMAPINFOHEADER */
2992 bmih->biSize = sizeof(BITMAPINFOHEADER);
2993 bmih->biWidth = bm.bmWidth;
2994 bmih->biHeight = bm.bmHeight;
2995 bmih->biPlanes = 1;
2996 bmih->biBitCount = bitCount;
2997 bmih->biCompression = BI_RGB;
2998 bmih->biSizeImage = sizeImage;
2999 bmih->biXPelsPerMeter = 0;
3000 bmih->biYPelsPerMeter = 0;
3001 bmih->biClrUsed = 0;
3002 bmih->biClrImportant = 0;
3003
3004 xdc = GetDC(0);
3005 result = GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBits, (BITMAPINFO *)bmih, DIB_RGB_COLORS) == bm.bmHeight;
3006 ReleaseDC(0, xdc);
3007 if (!result)
3008 goto failed;
3009
3010 TRACE("width %u, height %u, planes %u, bpp %u\n",
3011 bmih->biWidth, bmih->biHeight,
3012 bmih->biPlanes, bmih->biBitCount);
3013
3014 if(FAILED(IStream_Write(pstm, data, totalSize, NULL)))
3015 goto failed;
3016
3017 result = TRUE;
3018
3019 failed:
3020 Free(data);
3021
3022 return result;
3023 }
3024
3025
3026 /*************************************************************************
3027 * ImageList_Write [COMCTL32.@]
3028 *
3029 * Writes an image list to a stream.
3030 *
3031 * PARAMS
3032 * himl [I] handle to image list
3033 * pstm [O] Pointer to a stream.
3034 *
3035 * RETURNS
3036 * Success: TRUE
3037 * Failure: FALSE
3038 *
3039 * BUGS
3040 * probably.
3041 */
3042
3043 BOOL WINAPI
3044 ImageList_Write (HIMAGELIST himl, LPSTREAM pstm)
3045 {
3046 ILHEAD ilHead;
3047 int i;
3048
3049 TRACE("%p %p\n", himl, pstm);
3050
3051 if (!is_valid(himl))
3052 return FALSE;
3053
3054 ilHead.usMagic = (('L' << 8) | 'I');
3055 ilHead.usVersion = 0x101;
3056 ilHead.cCurImage = himl->cCurImage;
3057 ilHead.cMaxImage = himl->cMaxImage;
3058 ilHead.cGrow = himl->cGrow;
3059 ilHead.cx = himl->cx;
3060 ilHead.cy = himl->cy;
3061 ilHead.bkcolor = himl->clrBk;
3062 ilHead.flags = himl->flags;
3063 for(i = 0; i < 4; i++) {
3064 ilHead.ovls[i] = himl->nOvlIdx[i];
3065 }
3066
3067 TRACE("cx %u, cy %u, flags 0x04%x, cCurImage %u, cMaxImage %u\n",
3068 ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
3069
3070 if(FAILED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
3071 return FALSE;
3072
3073 /* write the bitmap */
3074 if(!_write_bitmap(himl->hbmImage, pstm))
3075 return FALSE;
3076
3077 /* write the mask if we have one */
3078 if(himl->flags & ILC_MASK) {
3079 if(!_write_bitmap(himl->hbmMask, pstm))
3080 return FALSE;
3081 }
3082
3083 return TRUE;
3084 }
3085
3086
3087 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count)
3088 {
3089 HBITMAP hbmNewBitmap;
3090 UINT ilc = (himl->flags & 0xFE);
3091 SIZE sz;
3092
3093 imagelist_get_bitmap_size( himl, count, &sz );
3094
3095 if ((ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32) || ilc == ILC_COLOR)
3096 {
3097 char buffer[sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)];
3098 BITMAPINFO *bmi = (BITMAPINFO *)buffer;
3099
3100 TRACE("Creating DIBSection %d x %d, %d Bits per Pixel\n",
3101 sz.cx, sz.cy, himl->uBitsPixel);
3102
3103 memset( buffer, 0, sizeof(buffer) );
3104 bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3105 bmi->bmiHeader.biWidth = sz.cx;
3106 bmi->bmiHeader.biHeight = sz.cy;
3107 bmi->bmiHeader.biPlanes = 1;
3108 bmi->bmiHeader.biBitCount = himl->uBitsPixel;
3109 bmi->bmiHeader.biCompression = BI_RGB;
3110
3111 if (himl->uBitsPixel <= ILC_COLOR8)
3112 {
3113 /* retrieve the default color map */
3114 HBITMAP tmp = CreateBitmap( 1, 1, 1, 1, NULL );
3115 GetDIBits( hdc, tmp, 0, 0, NULL, bmi, DIB_RGB_COLORS );
3116 DeleteObject( tmp );
3117 }
3118 hbmNewBitmap = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, NULL, 0, 0);
3119 }
3120 else /*if (ilc == ILC_COLORDDB)*/
3121 {
3122 TRACE("Creating Bitmap: %d Bits per Pixel\n", himl->uBitsPixel);
3123
3124 hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, himl->uBitsPixel, NULL);
3125 }
3126 TRACE("returning %p\n", hbmNewBitmap);
3127 return hbmNewBitmap;
3128 }
3129
3130 /*************************************************************************
3131 * ImageList_SetColorTable [COMCTL32.@]
3132 *
3133 * Sets the color table of an image list.
3134 *
3135 * PARAMS
3136 * himl [I] Handle to the image list.
3137 * uStartIndex [I] The first index to set.
3138 * cEntries [I] Number of entries to set.
3139 * prgb [I] New color information for color table for the image list.
3140 *
3141 * RETURNS
3142 * Success: Number of entries in the table that were set.
3143 * Failure: Zero.
3144 *
3145 * SEE
3146 * ImageList_Create(), SetDIBColorTable()
3147 */
3148
3149 UINT WINAPI
3150 ImageList_SetColorTable (HIMAGELIST himl, UINT uStartIndex, UINT cEntries, CONST RGBQUAD * prgb)
3151 {
3152 return SetDIBColorTable(himl->hdcImage, uStartIndex, cEntries, prgb);
3153 }
3154
3155 /*************************************************************************
3156 * ImageList_CoCreateInstance [COMCTL32.@]
3157 *
3158 * Creates a new imagelist instance and returns an interface pointer to it.
3159 *
3160 * PARAMS
3161 * rclsid [I] A reference to the CLSID (CLSID_ImageList).
3162 * punkOuter [I] Pointer to IUnknown interface for aggregation, if desired
3163 * riid [I] Identifier of the requested interface.
3164 * ppv [O] Returns the address of the pointer requested, or NULL.
3165 *
3166 * RETURNS
3167 * Success: S_OK.
3168 * Failure: Error value.
3169 */
3170 HRESULT WINAPI
3171 ImageList_CoCreateInstance (REFCLSID rclsid, const IUnknown *punkOuter, REFIID riid, void **ppv)
3172 {
3173 TRACE("(%s,%p,%s,%p)\n", debugstr_guid(rclsid), punkOuter, debugstr_guid(riid), ppv);
3174
3175 if (!IsEqualCLSID(&CLSID_ImageList, rclsid))
3176 return E_NOINTERFACE;
3177
3178 return ImageListImpl_CreateInstance(punkOuter, riid, ppv);
3179 }
3180
3181
3182 /*************************************************************************
3183 * IImageList implementation
3184 */
3185
3186 static HRESULT WINAPI ImageListImpl_QueryInterface(IImageList *iface,
3187 REFIID iid, void **ppv)
3188 {
3189 HIMAGELIST This = (HIMAGELIST) iface;
3190 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
3191
3192 if (!ppv) return E_INVALIDARG;
3193
3194 if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IImageList, iid))
3195 *ppv = This;
3196 else
3197 {
3198 *ppv = NULL;
3199 return E_NOINTERFACE;
3200 }
3201
3202 IUnknown_AddRef((IUnknown*)*ppv);
3203 return S_OK;
3204 }
3205
3206 static ULONG WINAPI ImageListImpl_AddRef(IImageList *iface)
3207 {
3208 HIMAGELIST This = (HIMAGELIST) iface;
3209 ULONG ref = InterlockedIncrement(&This->ref);
3210
3211 TRACE("(%p) refcount=%u\n", iface, ref);
3212 return ref;
3213 }
3214
3215 static ULONG WINAPI ImageListImpl_Release(IImageList *iface)
3216 {
3217 HIMAGELIST This = (HIMAGELIST) iface;
3218 ULONG ref = InterlockedDecrement(&This->ref);
3219
3220 TRACE("(%p) refcount=%u\n", iface, ref);
3221
3222 if (ref == 0)
3223 {
3224 /* delete image bitmaps */
3225 if (This->hbmImage) DeleteObject (This->hbmImage);
3226 if (This->hbmMask) DeleteObject (This->hbmMask);
3227
3228 /* delete image & mask DCs */
3229 if (This->hdcImage) DeleteDC (This->hdcImage);
3230 if (This->hdcMask) DeleteDC (This->hdcMask);
3231
3232 /* delete blending brushes */
3233 if (This->hbrBlend25) DeleteObject (This->hbrBlend25);
3234 if (This->hbrBlend50) DeleteObject (This->hbrBlend50);
3235
3236 This->lpVtbl = NULL;
3237 HeapFree(GetProcessHeap(), 0, This->has_alpha);
3238 HeapFree(GetProcessHeap(), 0, This);
3239 }
3240
3241 return ref;
3242 }
3243
3244 static HRESULT WINAPI ImageListImpl_Add(IImageList *iface, HBITMAP hbmImage,
3245 HBITMAP hbmMask, int *pi)
3246 {
3247 HIMAGELIST This = (HIMAGELIST) iface;
3248 int ret;
3249
3250 if (!pi)
3251 return E_FAIL;
3252
3253 ret = ImageList_Add(This, hbmImage, hbmMask);
3254
3255 if (ret == -1)
3256 return E_FAIL;
3257
3258 *pi = ret;
3259 return S_OK;
3260 }
3261
3262 static HRESULT WINAPI ImageListImpl_ReplaceIcon(IImageList *iface, int i,
3263 HICON hicon, int *pi)
3264 {
3265 HIMAGELIST This = (HIMAGELIST) iface;
3266 int ret;
3267
3268 if (!pi)
3269 return E_FAIL;
3270
3271 ret = ImageList_ReplaceIcon(This, i, hicon);
3272
3273 if (ret == -1)
3274 return E_FAIL;
3275
3276 *pi = ret;
3277 return S_OK;
3278 }
3279
3280 static HRESULT WINAPI ImageListImpl_SetOverlayImage(IImageList *iface,
3281 int iImage, int iOverlay)
3282 {
3283 return ImageList_SetOverlayImage((HIMAGELIST) iface, iImage, iOverlay)
3284 ? S_OK : E_FAIL;
3285 }
3286
3287 static HRESULT WINAPI ImageListImpl_Replace(IImageList *iface, int i,
3288 HBITMAP hbmImage, HBITMAP hbmMask)
3289 {
3290 return ImageList_Replace((HIMAGELIST) iface, i, hbmImage, hbmMask) ? S_OK :
3291 E_FAIL;
3292 }
3293
3294 static HRESULT WINAPI ImageListImpl_AddMasked(IImageList *iface, HBITMAP hbmImage,
3295 COLORREF crMask, int *pi)
3296 {
3297 HIMAGELIST This = (HIMAGELIST) iface;
3298 int ret;
3299
3300 if (!pi)
3301 return E_FAIL;
3302
3303 ret = ImageList_AddMasked(This, hbmImage, crMask);
3304
3305 if (ret == -1)
3306 return E_FAIL;
3307
3308 *pi = ret;
3309 return S_OK;
3310 }
3311
3312 static HRESULT WINAPI ImageListImpl_Draw(IImageList *iface,
3313 IMAGELISTDRAWPARAMS *pimldp)
3314 {
3315 HIMAGELIST This = (HIMAGELIST) iface;
3316 HIMAGELIST old_himl;
3317 int ret;
3318
3319 /* As far as I can tell, Windows simply ignores the contents of pimldp->himl
3320 so we shall simulate the same */
3321 old_himl = pimldp->himl;
3322 pimldp->himl = This;
3323
3324 ret = ImageList_DrawIndirect(pimldp);
3325
3326 pimldp->himl = old_himl;
3327 return ret ? S_OK : E_INVALIDARG;
3328 }
3329
3330 static HRESULT WINAPI ImageListImpl_Remove(IImageList *iface, int i)
3331 {
3332 return (ImageList_Remove((HIMAGELIST) iface, i) == 0) ? E_INVALIDARG : S_OK;
3333 }
3334
3335 static HRESULT WINAPI ImageListImpl_GetIcon(IImageList *iface, int i, UINT flags,
3336 HICON *picon)
3337 {
3338 HICON hIcon;
3339
3340 if (!picon)
3341 return E_FAIL;
3342
3343 hIcon = ImageList_GetIcon((HIMAGELIST) iface, i, flags);
3344
3345 if (hIcon == NULL)
3346 return E_FAIL;
3347
3348 *picon = hIcon;
3349 return S_OK;
3350 }
3351
3352 static HRESULT WINAPI ImageListImpl_GetImageInfo(IImageList *iface, int i,
3353 IMAGEINFO *pImageInfo)
3354 {
3355 return ImageList_GetImageInfo((HIMAGELIST) iface, i, pImageInfo) ? S_OK : E_FAIL;
3356 }
3357
3358 static HRESULT WINAPI ImageListImpl_Copy(IImageList *iface, int iDst,
3359 IUnknown *punkSrc, int iSrc, UINT uFlags)
3360 {
3361 HIMAGELIST This = (HIMAGELIST) iface;
3362 IImageList *src = NULL;
3363 HRESULT ret;
3364
3365 if (!punkSrc)
3366 return E_FAIL;
3367
3368 /* TODO: Add test for IID_ImageList2 too */
3369 if (FAILED(IImageList_QueryInterface(punkSrc, &IID_IImageList,
3370 (void **) &src)))
3371 return E_FAIL;
3372
3373 if (ImageList_Copy(This, iDst, (HIMAGELIST) src, iSrc, uFlags))
3374 ret = S_OK;
3375 else
3376 ret = E_FAIL;
3377
3378 IImageList_Release(src);
3379 return ret;
3380 }
3381
3382 static HRESULT WINAPI ImageListImpl_Merge(IImageList *iface, int i1,
3383 IUnknown *punk2, int i2, int dx, int dy, REFIID riid, void **ppv)
3384 {
3385 HIMAGELIST This = (HIMAGELIST) iface;
3386 IImageList *iml2 = NULL;
3387 HIMAGELIST hNew;
3388 HRESULT ret = E_FAIL;
3389
3390 TRACE("(%p)->(%d %p %d %d %d %s %p)\n", iface, i1, punk2, i2, dx, dy, debugstr_guid(riid), ppv);
3391
3392 /* TODO: Add test for IID_ImageList2 too */
3393 if (FAILED(IImageList_QueryInterface(punk2, &IID_IImageList,
3394 (void **) &iml2)))
3395 return E_FAIL;
3396
3397 hNew = ImageList_Merge(This, i1, (HIMAGELIST) iml2, i2, dx, dy);
3398
3399 /* Get the interface for the new image list */
3400 if (hNew)
3401 {
3402 IImageList *imerge = (IImageList*)hNew;
3403
3404 ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
3405 IImageList_Release(imerge);
3406 }
3407
3408 IImageList_Release(iml2);
3409 return ret;
3410 }
3411
3412 static HRESULT WINAPI ImageListImpl_Clone(IImageList *iface, REFIID riid, void **ppv)
3413 {
3414 HIMAGELIST This = (HIMAGELIST) iface;
3415 HIMAGELIST clone;
3416 HRESULT ret = E_FAIL;
3417
3418 TRACE("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
3419
3420 clone = ImageList_Duplicate(This);
3421
3422 /* Get the interface for the new image list */
3423 if (clone)
3424 {
3425 IImageList *iclone = (IImageList*)clone;
3426
3427 ret = HIMAGELIST_QueryInterface(clone, riid, ppv);
3428 IImageList_Release(iclone);
3429 }
3430
3431 return ret;
3432 }
3433
3434 static HRESULT WINAPI ImageListImpl_GetImageRect(IImageList *iface, int i,
3435 RECT *prc)
3436 {
3437 HIMAGELIST This = (HIMAGELIST) iface;
3438 IMAGEINFO info;
3439
3440 if (!prc)
3441 return E_FAIL;
3442
3443 if (!ImageList_GetImageInfo(This, i, &info))
3444 return E_FAIL;
3445
3446 return CopyRect(prc, &info.rcImage) ? S_OK : E_FAIL;
3447 }
3448
3449 static HRESULT WINAPI ImageListImpl_GetIconSize(IImageList *iface, int *cx,
3450 int *cy)
3451 {
3452 HIMAGELIST This = (HIMAGELIST) iface;
3453
3454 return ImageList_GetIconSize(This, cx, cy) ? S_OK : E_INVALIDARG;
3455 }
3456
3457 static HRESULT WINAPI ImageListImpl_SetIconSize(IImageList *iface, int cx,
3458 int cy)
3459 {
3460 return ImageList_SetIconSize((HIMAGELIST) iface, cx, cy) ? S_OK : E_FAIL;
3461 }
3462
3463 static HRESULT WINAPI ImageListImpl_GetImageCount(IImageList *iface, int *pi)
3464 {
3465 *pi = ImageList_GetImageCount((HIMAGELIST) iface);
3466 return S_OK;
3467 }
3468
3469 static HRESULT WINAPI ImageListImpl_SetImageCount(IImageList *iface,
3470 UINT uNewCount)
3471 {
3472 return ImageList_SetImageCount((HIMAGELIST) iface, uNewCount) ? S_OK : E_FAIL;
3473 }
3474
3475 static HRESULT WINAPI ImageListImpl_SetBkColor(IImageList *iface, COLORREF clrBk,
3476 COLORREF *pclr)
3477 {
3478 *pclr = ImageList_SetBkColor((HIMAGELIST) iface, clrBk);
3479 return S_OK;
3480 }
3481
3482 static HRESULT WINAPI ImageListImpl_GetBkColor(IImageList *iface, COLORREF *pclr)
3483 {
3484 *pclr = ImageList_GetBkColor((HIMAGELIST) iface);
3485 return S_OK;
3486 }
3487
3488 static HRESULT WINAPI ImageListImpl_BeginDrag(IImageList *iface, int iTrack,
3489 int dxHotspot, int dyHotspot)
3490 {
3491 return ImageList_BeginDrag((HIMAGELIST) iface, iTrack, dxHotspot, dyHotspot) ? S_OK : E_FAIL;
3492 }
3493
3494 static HRESULT WINAPI ImageListImpl_EndDrag(IImageList *iface)
3495 {
3496 ImageList_EndDrag();
3497 return S_OK;
3498 }
3499
3500 static HRESULT WINAPI ImageListImpl_DragEnter(IImageList *iface, HWND hwndLock,
3501 int x, int y)
3502 {
3503 return ImageList_DragEnter(hwndLock, x, y) ? S_OK : E_FAIL;
3504 }
3505
3506 static HRESULT WINAPI ImageListImpl_DragLeave(IImageList *iface, HWND hwndLock)
3507 {
3508 return ImageList_DragLeave(hwndLock) ? S_OK : E_FAIL;
3509 }
3510
3511 static HRESULT WINAPI ImageListImpl_DragMove(IImageList *iface, int x, int y)
3512 {
3513 return ImageList_DragMove(x, y) ? S_OK : E_FAIL;
3514 }
3515
3516 static HRESULT WINAPI ImageListImpl_SetDragCursorImage(IImageList *iface,
3517 IUnknown *punk, int iDrag, int dxHotspot, int dyHotspot)
3518 {
3519 IImageList *iml2 = NULL;
3520 HRESULT ret;
3521
3522 if (!punk)
3523 return E_FAIL;
3524
3525 /* TODO: Add test for IID_ImageList2 too */
3526 if (FAILED(IImageList_QueryInterface(punk, &IID_IImageList,
3527 (void **) &iml2)))
3528 return E_FAIL;
3529
3530 ret = ImageList_SetDragCursorImage((HIMAGELIST) iml2, iDrag, dxHotspot,
3531 dyHotspot);
3532
3533 IImageList_Release(iml2);
3534
3535 return ret ? S_OK : E_FAIL;
3536 }
3537
3538 static HRESULT WINAPI ImageListImpl_DragShowNolock(IImageList *iface, BOOL fShow)
3539 {
3540 return ImageList_DragShowNolock(fShow) ? S_OK : E_FAIL;
3541 }
3542
3543 static HRESULT WINAPI ImageListImpl_GetDragImage(IImageList *iface, POINT *ppt,
3544 POINT *pptHotspot, REFIID riid, PVOID *ppv)
3545 {
3546 HRESULT ret = E_FAIL;
3547 HIMAGELIST hNew;
3548
3549 if (!ppv)
3550 return E_FAIL;
3551
3552 hNew = ImageList_GetDragImage(ppt, pptHotspot);
3553
3554 /* Get the interface for the new image list */
3555 if (hNew)
3556 {
3557 IImageList *idrag = (IImageList*)hNew;
3558
3559 ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
3560 IImageList_Release(idrag);
3561 }
3562
3563 return ret;
3564 }
3565
3566 static HRESULT WINAPI ImageListImpl_GetItemFlags(IImageList *iface, int i,
3567 DWORD *dwFlags)
3568 {
3569 FIXME("STUB: %p %d %p\n", iface, i, dwFlags);
3570 return E_NOTIMPL;
3571 }
3572
3573 static HRESULT WINAPI ImageListImpl_GetOverlayImage(IImageList *iface, int iOverlay,
3574 int *piIndex)
3575 {
3576 HIMAGELIST This = (HIMAGELIST) iface;
3577 int i;
3578
3579 if ((iOverlay < 0) || (iOverlay > This->cCurImage))
3580 return E_FAIL;
3581
3582 for (i = 0; i < MAX_OVERLAYIMAGE; i++)
3583 {
3584 if (This->nOvlIdx[i] == iOverlay)
3585 {
3586 *piIndex = i + 1;
3587 return S_OK;
3588 }
3589 }
3590
3591 return E_FAIL;
3592 }
3593
3594
3595 static const IImageListVtbl ImageListImpl_Vtbl = {
3596 ImageListImpl_QueryInterface,
3597 ImageListImpl_AddRef,
3598 ImageListImpl_Release,
3599 ImageListImpl_Add,
3600 ImageListImpl_ReplaceIcon,
3601 ImageListImpl_SetOverlayImage,
3602 ImageListImpl_Replace,
3603 ImageListImpl_AddMasked,
3604 ImageListImpl_Draw,
3605 ImageListImpl_Remove,
3606 ImageListImpl_GetIcon,
3607 ImageListImpl_GetImageInfo,
3608 ImageListImpl_Copy,
3609 ImageListImpl_Merge,
3610 ImageListImpl_Clone,
3611 ImageListImpl_GetImageRect,
3612 ImageListImpl_GetIconSize,
3613 ImageListImpl_SetIconSize,
3614 ImageListImpl_GetImageCount,
3615 ImageListImpl_SetImageCount,
3616 ImageListImpl_SetBkColor,
3617 ImageListImpl_GetBkColor,
3618 ImageListImpl_BeginDrag,
3619 ImageListImpl_EndDrag,
3620 ImageListImpl_DragEnter,
3621 ImageListImpl_DragLeave,
3622 ImageListImpl_DragMove,
3623 ImageListImpl_SetDragCursorImage,
3624 ImageListImpl_DragShowNolock,
3625 ImageListImpl_GetDragImage,
3626 ImageListImpl_GetItemFlags,
3627 ImageListImpl_GetOverlayImage
3628 };
3629
3630 static BOOL is_valid(HIMAGELIST himl)
3631 {
3632 BOOL valid;
3633 __TRY
3634 {
3635 valid = himl && himl->lpVtbl == &ImageListImpl_Vtbl;
3636 }
3637 __EXCEPT_PAGE_FAULT
3638 {
3639 valid = FALSE;
3640 }
3641 __ENDTRY
3642 return valid;
3643 }
3644
3645 /*************************************************************************
3646 * HIMAGELIST_QueryInterface [COMCTL32.@]
3647 *
3648 * Returns a pointer to an IImageList or IImageList2 object for the given
3649 * HIMAGELIST.
3650 *
3651 * PARAMS
3652 * himl [I] Image list handle.
3653 * riid [I] Identifier of the requested interface.
3654 * ppv [O] Returns the address of the pointer requested, or NULL.
3655 *
3656 * RETURNS
3657 * Success: S_OK.
3658 * Failure: Error value.
3659 */
3660 HRESULT WINAPI
3661 HIMAGELIST_QueryInterface (HIMAGELIST himl, REFIID riid, void **ppv)
3662 {
3663 TRACE("(%p,%s,%p)\n", himl, debugstr_guid(riid), ppv);
3664 return IImageList_QueryInterface((IImageList *) himl, riid, ppv);
3665 }
3666
3667 static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv)
3668 {
3669 HIMAGELIST This;
3670 HRESULT ret;
3671
3672 TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
3673
3674 *ppv = NULL;
3675
3676 if (pUnkOuter) return CLASS_E_NOAGGREGATION;
3677
3678 This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct _IMAGELIST));
3679 if (!This) return E_OUTOFMEMORY;
3680
3681 This->lpVtbl = &ImageListImpl_Vtbl;
3682 This->ref = 1;
3683
3684 ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
3685 IUnknown_Release((IUnknown*)This);
3686
3687 return ret;
3688 }
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