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- improved trace information
[wine.git] / dlls / comctl32 / comboex.c
blob3852bdd695c3f1c12a306f55ccf28fcc4816f558
1 /*
2 * ComboBoxEx control
3 *
4 * Copyright 1998, 1999 Eric Kohl
5 *
6 * NOTES
7 * This is just a dummy control. An author is needed! Any volunteers?
8 * I will only improve this control once in a while.
9 * Eric <ekohl@abo.rhein-zeitung.de>
10 *
11 * TODO:
12 * - All messages.
13 * - All notifications.
14 *
15 * FIXME:
16 * - should include "combo.h"
17
18 * Changes Guy Albertelli <galberte@neo.lrun.com>
19 * 1. Implemented message CB_SETITEMHEIGHT
20 * 2. Implemented message WM_WINDOWPOSCHANGING
21 * 3. Implemented message WM_MEASUREITEM
22 * 4. Add code to WM_CREATE processing to set font of COMBOBOX and
23 * issue the CB_SETITEMHEIGHT to start the correct sizing process.
24 * The above 4 changes allow the window rect for the comboboxex
25 * to be set properly, which in turn allows the height of the
26 * rebar control it *may* be imbeded in to be correct.
27 * 5. Rewrite CBEM_INSERTITEMA to save the information.
28 * 6. Implemented message WM_DRAWITEM. The code will handle images
29 * but not "overlays" yet.
30 * 7. Fixed code in CBEM_SETIMAGELIST to resize control.
31 * 8. Add debugging code.
32 *
33 * Test vehicals were the ControlSpy modules (rebar.exe and comboboxex.exe)
34 *
35 */
36
37 #include "winbase.h"
38 #include "wine/winestring.h"
39 #include "commctrl.h"
40 #include "debugtools.h"
41 #include "wine/unicode.h"
42
43 DEFAULT_DEBUG_CHANNEL(comboex);
44 DECLARE_DEBUG_CHANNEL(message);
45
46 /* Item structure */
47 typedef struct
48 {
49 VOID *next;
50 UINT mask;
51 LPWSTR pszText;
52 int cchTextMax;
53 int iImage;
54 int iSelectedImage;
55 int iOverlay;
56 int iIndent;
57 LPARAM lParam;
58 } CBE_ITEMDATA;
59
60 /* ComboBoxEx structure */
61 typedef struct
62 {
63 HIMAGELIST himl;
64 HWND hwndCombo;
65 DWORD dwExtStyle;
66 HFONT font;
67 INT nb_items; /* Number of items */
68 CBE_ITEMDATA *items; /* Array of items */
69 } COMBOEX_INFO;
70
71 #define ID_CB_EDIT 1001
72
73 /* Height in pixels of control over the amount of the selected font */
74 #define CBE_EXTRA 3
75
76 /* Indent amount per MS documentation */
77 #define CBE_INDENT 10
78
79 /* Offset in pixels from left side for start of image or text */
80 #define CBE_STARTOFFSET 6
81
82 /* Offset between image and text */
83 #define CBE_SEP 4
84
85 #define COMBOEX_GetInfoPtr(wndPtr) ((COMBOEX_INFO *)GetWindowLongA (hwnd, 0))
86
87
88 static void
89 COMBOEX_DumpItem (CBE_ITEMDATA *item)
90 {
91 if (TRACE_ON(comboex)){
92 TRACE("item %p - mask=%08x, pszText=%p, cchTM=%d, iImage=%d\n",
93 item, item->mask, item->pszText, item->cchTextMax,
94 item->iImage);
95 TRACE("item %p - iSelectedImage=%d, iOverlay=%d, iIndent=%d, lParam=%08lx\n",
96 item, item->iSelectedImage, item->iOverlay, item->iIndent, item->lParam);
97 }
98 }
99
100
101 inline static LRESULT
102 COMBOEX_Forward (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
103 {
104 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
105
106 FIXME("(0x%x 0x%x 0x%lx): stub\n", uMsg, wParam, lParam);
107
108 if (infoPtr->hwndCombo)
109 return SendMessageA (infoPtr->hwndCombo, uMsg, wParam, lParam);
110
111 return 0;
112 }
113
114
115 static void
116 COMBOEX_ReSize (HWND hwnd, COMBOEX_INFO *infoPtr)
117 {
118 HFONT nfont, ofont;
119 HDC mydc;
120 SIZE mysize;
121 UINT cy;
122 IMAGEINFO iinfo;
123
124 mydc = GetDC (0); /* why the entire screen???? */
125 nfont = SendMessageA (infoPtr->hwndCombo, WM_GETFONT, 0, 0);
126 ofont = (HFONT) SelectObject (mydc, nfont);
127 GetTextExtentPointA (mydc, "A", 1, &mysize);
128 SelectObject (mydc, ofont);
129 ReleaseDC (0, mydc);
130 cy = mysize.cy + CBE_EXTRA;
131 if (infoPtr->himl) {
132 ImageList_GetImageInfo(infoPtr->himl, 0, &iinfo);
133 cy = max (iinfo.rcImage.bottom - iinfo.rcImage.top, cy);
134 }
135 TRACE("selected font hwnd=%08x, height=%d\n", nfont, cy);
136 SendMessageA (hwnd, CB_SETITEMHEIGHT, (WPARAM) -1, (LPARAM) cy);
137 if (infoPtr->hwndCombo)
138 SendMessageA (infoPtr->hwndCombo, CB_SETITEMHEIGHT,
139 (WPARAM) 0, (LPARAM) cy);
140 }
141
142
143 /* *** CBEM_xxx message support *** */
144
145
146 /* << COMBOEX_DeleteItem >> */
147
148
149 inline static LRESULT
150 COMBOEX_GetComboControl (HWND hwnd, WPARAM wParam, LPARAM lParam)
151 {
152 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
153
154 TRACE("\n");
155
156 return (LRESULT)infoPtr->hwndCombo;
157 }
158
159
160 inline static LRESULT
161 COMBOEX_GetEditControl (HWND hwnd, WPARAM wParam, LPARAM lParam)
162 {
163 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
164
165 if ((GetWindowLongA (hwnd, GWL_STYLE) & CBS_DROPDOWNLIST) != CBS_DROPDOWN)
166 return 0;
167
168 TRACE("-- 0x%x\n", GetDlgItem (infoPtr->hwndCombo, ID_CB_EDIT));
169
170 return (LRESULT)GetDlgItem (infoPtr->hwndCombo, ID_CB_EDIT);
171 }
172
173
174 inline static LRESULT
175 COMBOEX_GetExtendedStyle (HWND hwnd, WPARAM wParam, LPARAM lParam)
176 {
177 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
178
179 return (LRESULT)infoPtr->dwExtStyle;
180 }
181
182
183 inline static LRESULT
184 COMBOEX_GetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
185 {
186 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
187
188 TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
189
190 return (LRESULT)infoPtr->himl;
191 }
192
193
194 /* << COMBOEX_GetItemA >> */
195
196 /* << COMBOEX_GetItemW >> */
197
198 /* << COMBOEX_GetUniCodeFormat >> */
199
200 /* << COMBOEX_HasEditChanged >> */
201
202
203 static LRESULT
204 COMBOEX_InsertItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
205 {
206 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
207 COMBOBOXEXITEMA *cit = (COMBOBOXEXITEMA *) lParam;
208 INT index;
209 CBE_ITEMDATA *item;
210
211
212 /* get real index of item to insert */
213 index = cit->iItem;
214 if (index == -1) index = infoPtr->nb_items;
215 if (index > infoPtr->nb_items) index = infoPtr->nb_items;
216
217 /* get space and chain it in */
218 item = (CBE_ITEMDATA *)COMCTL32_Alloc (sizeof (CBE_ITEMDATA));
219 item->next = NULL;
220 item->pszText = NULL;
221
222 /* locate position to insert new item in */
223 if (index == infoPtr->nb_items) {
224 /* fast path for iItem = -1 */
225 item->next = infoPtr->items;
226 infoPtr->items = item;
227 }
228 else {
229 int i = infoPtr->nb_items-1;
230 CBE_ITEMDATA *moving = infoPtr->items;
231
232 while (i > index && moving) {
233 moving = (CBE_ITEMDATA *)moving->next;
234 }
235 if (!moving) {
236 FIXME("COMBOBOXEX item structures broken. Please report!\n");
237 COMCTL32_Free(item);
238 return -1;
239 }
240 item->next = moving->next;
241 moving->next = item;
242 }
243
244 /* fill in our hidden item structure */
245 item->mask = cit->mask;
246 if (item->mask & CBEIF_TEXT) {
247 LPSTR str;
248 INT len;
249
250 str = cit->pszText;
251 if (!str) str="";
252 len = MultiByteToWideChar (CP_ACP, 0, str, -1, NULL, 0);
253 if (len > 0) {
254 item->pszText = (LPWSTR)COMCTL32_Alloc ((len + 1)*sizeof(WCHAR));
255 MultiByteToWideChar (CP_ACP, 0, str, -1, item->pszText, len);
256 }
257 item->cchTextMax = cit->cchTextMax;
258 }
259 if (item->mask & CBEIF_IMAGE)
260 item->iImage = cit->iImage;
261 if (item->mask & CBEIF_SELECTEDIMAGE)
262 item->iSelectedImage = cit->iSelectedImage;
263 if (item->mask & CBEIF_OVERLAY)
264 item->iOverlay = cit->iOverlay;
265 if (item->mask & CBEIF_INDENT)
266 item->iIndent = cit->iIndent;
267 if (item->mask & CBEIF_LPARAM)
268 item->lParam = cit->lParam;
269 infoPtr->nb_items++;
270
271 COMBOEX_DumpItem (item);
272
273 SendMessageA (infoPtr->hwndCombo, CB_INSERTSTRING,
274 (WPARAM)cit->iItem, (LPARAM)item);
275
276 return index;
277
278 }
279
280
281 static LRESULT
282 COMBOEX_InsertItemW (HWND hwnd, WPARAM wParam, LPARAM lParam)
283 {
284 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
285 COMBOBOXEXITEMW *cit = (COMBOBOXEXITEMW *) lParam;
286 INT index;
287 CBE_ITEMDATA *item;
288
289 /* get real index of item to insert */
290 index = cit->iItem;
291 if (index == -1) index = infoPtr->nb_items;
292 if (index > infoPtr->nb_items) index = infoPtr->nb_items;
293
294 /* get space and chain it in */
295 item = (CBE_ITEMDATA *)COMCTL32_Alloc (sizeof (CBE_ITEMDATA));
296 item->next = NULL;
297 item->pszText = NULL;
298
299 /* locate position to insert new item in */
300 if (index == infoPtr->nb_items) {
301 /* fast path for iItem = -1 */
302 item->next = infoPtr->items;
303 infoPtr->items = item;
304 }
305 else {
306 INT i = infoPtr->nb_items-1;
307 CBE_ITEMDATA *moving = infoPtr->items;
308
309 while ((i > index) && moving) {
310 moving = (CBE_ITEMDATA *)moving->next;
311 i--;
312 }
313 if (!moving) {
314 FIXME("COMBOBOXEX item structures broken. Please report!\n");
315 COMCTL32_Free(item);
316 return -1;
317 }
318 item->next = moving->next;
319 moving->next = item;
320 }
321
322 /* fill in our hidden item structure */
323 item->mask = cit->mask;
324 if (item->mask & CBEIF_TEXT) {
325 LPWSTR str;
326 INT len;
327
328 str = cit->pszText;
329 if (!str) str = (LPWSTR) L"";
330 len = strlenW (str);
331 if (len > 0) {
332 item->pszText = (LPWSTR)COMCTL32_Alloc ((len + 1)*sizeof(WCHAR));
333 strcpyW (item->pszText, str);
334 }
335 item->cchTextMax = cit->cchTextMax;
336 }
337 if (item->mask & CBEIF_IMAGE)
338 item->iImage = cit->iImage;
339 if (item->mask & CBEIF_SELECTEDIMAGE)
340 item->iSelectedImage = cit->iSelectedImage;
341 if (item->mask & CBEIF_OVERLAY)
342 item->iOverlay = cit->iOverlay;
343 if (item->mask & CBEIF_INDENT)
344 item->iIndent = cit->iIndent;
345 if (item->mask & CBEIF_LPARAM)
346 item->lParam = cit->lParam;
347 infoPtr->nb_items++;
348
349 COMBOEX_DumpItem (item);
350
351 SendMessageA (infoPtr->hwndCombo, CB_INSERTSTRING,
352 (WPARAM)cit->iItem, (LPARAM)item);
353
354 return index;
355
356 }
357
358
359 static LRESULT
360 COMBOEX_SetExtendedStyle (HWND hwnd, WPARAM wParam, LPARAM lParam)
361 {
362 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
363 DWORD dwTemp;
364
365 TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
366
367 dwTemp = infoPtr->dwExtStyle;
368
369 if ((DWORD)wParam) {
370 infoPtr->dwExtStyle = (infoPtr->dwExtStyle & ~(DWORD)wParam) | (DWORD)lParam;
371 }
372 else
373 infoPtr->dwExtStyle = (DWORD)lParam;
374
375 /* FIXME: repaint?? */
376
377 return (LRESULT)dwTemp;
378 }
379
380
381 inline static LRESULT
382 COMBOEX_SetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
383 {
384 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
385 HIMAGELIST himlTemp;
386
387 TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
388
389 himlTemp = infoPtr->himl;
390 infoPtr->himl = (HIMAGELIST)lParam;
391
392 COMBOEX_ReSize (hwnd, infoPtr);
393 InvalidateRect (hwnd, NULL, TRUE);
394
395 return (LRESULT)himlTemp;
396 }
397
398
399 static LRESULT
400 COMBOEX_SetItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
401 {
402 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
403 COMBOBOXEXITEMA *cit = (COMBOBOXEXITEMA *) lParam;
404 INT index;
405 INT i;
406 CBE_ITEMDATA *item;
407
408 /* get real index of item to insert */
409 index = cit->iItem;
410 if (index == -1) {
411 FIXME("NYI setting data for item in edit control\n");
412 return 0;
413 }
414
415 /* if item number requested does not exist then return failure */
416 if ((index > infoPtr->nb_items) || (index < 0)) return 0;
417
418 /* find the item in the list */
419 item = infoPtr->items;
420 i = infoPtr->nb_items - 1;
421 while (item && (i > index)) {
422 item = (CBE_ITEMDATA *)item->next;
423 i--;
424 }
425 if (!item || (i != index)) {
426 FIXME("COMBOBOXEX item structures broken. Please report!\n");
427 return 0;
428 }
429
430 /* add/change stuff to the internal item structure */
431 item->mask |= cit->mask;
432 if (cit->mask & CBEIF_TEXT) {
433 LPSTR str;
434 INT len;
435
436 str = cit->pszText;
437 if (!str) str="";
438 len = MultiByteToWideChar (CP_ACP, 0, str, -1, NULL, 0);
439 if (len > 0) {
440 item->pszText = (LPWSTR)COMCTL32_Alloc ((len + 1)*sizeof(WCHAR));
441 MultiByteToWideChar (CP_ACP, 0, str, -1, item->pszText, len);
442 }
443 item->cchTextMax = cit->cchTextMax;
444 }
445 if (cit->mask & CBEIF_IMAGE)
446 item->iImage = cit->iImage;
447 if (cit->mask & CBEIF_SELECTEDIMAGE)
448 item->iSelectedImage = cit->iSelectedImage;
449 if (cit->mask & CBEIF_OVERLAY)
450 item->iOverlay = cit->iOverlay;
451 if (cit->mask & CBEIF_INDENT)
452 item->iIndent = cit->iIndent;
453 if (cit->mask & CBEIF_LPARAM)
454 cit->lParam = cit->lParam;
455
456 COMBOEX_DumpItem (item);
457
458 return TRUE;
459 }
460
461
462 /* << COMBOEX_SetItemW >> */
463
464 /* << COMBOEX_SetUniCodeFormat >> */
465
466
467 /* *** CB_xxx message support *** */
468
469
470 static LRESULT
471 COMBOEX_SetItemHeight (HWND hwnd, WPARAM wParam, LPARAM lParam)
472 {
473 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
474 RECT cb_wrect, cbx_wrect, cbx_crect;
475 LRESULT ret = 0;
476 UINT height;
477
478 /* First, lets forward the message to the normal combo control
479 just like Windows. */
480 if (infoPtr->hwndCombo)
481 SendMessageA (infoPtr->hwndCombo, CB_SETITEMHEIGHT, wParam, lParam);
482
483 /* *** new *** */
484 GetWindowRect (infoPtr->hwndCombo, &cb_wrect);
485 GetWindowRect (hwnd, &cbx_wrect);
486 GetClientRect (hwnd, &cbx_crect);
487 /* the height of comboex as height of the combo + comboex border */
488 height = cb_wrect.bottom-cb_wrect.top
489 + cbx_wrect.bottom-cbx_wrect.top
490 - (cbx_crect.bottom-cbx_crect.top);
491 TRACE("EX window=(%d,%d)-(%d,%d), client=(%d,%d)-(%d,%d)\n",
492 cbx_wrect.left, cbx_wrect.top, cbx_wrect.right, cbx_wrect.bottom,
493 cbx_crect.left, cbx_crect.top, cbx_crect.right, cbx_crect.bottom);
494 TRACE("CB window=(%d,%d)-(%d,%d), EX setting=(0,0)-(%d,%d)\n",
495 cb_wrect.left, cb_wrect.top, cb_wrect.right, cb_wrect.bottom,
496 cbx_wrect.right-cbx_wrect.left, height);
497 SetWindowPos (hwnd, HWND_TOP, 0, 0,
498 cbx_wrect.right-cbx_wrect.left,
499 height,
500 SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOMOVE);
501 /* *** end new *** */
502
503 return ret;
504 }
505
506
507 /* *** WM_xxx message support *** */
508
509
510 static LRESULT
511 COMBOEX_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
512 {
513 LPCREATESTRUCTA cs = (LPCREATESTRUCTA) lParam;
514 COMBOEX_INFO *infoPtr;
515 DWORD dwComboStyle;
516 LOGFONTA mylogfont;
517
518 /* allocate memory for info structure */
519 infoPtr = (COMBOEX_INFO *)COMCTL32_Alloc (sizeof(COMBOEX_INFO));
520 if (infoPtr == NULL) {
521 ERR("could not allocate info memory!\n");
522 return 0;
523 }
524 infoPtr->items = NULL;
525 infoPtr->nb_items = 0;
526
527 SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
528
529
530 /* initialize info structure */
531
532
533 /* create combo box */
534 dwComboStyle = GetWindowLongA (hwnd, GWL_STYLE) &
535 (CBS_SIMPLE|CBS_DROPDOWN|CBS_DROPDOWNLIST|WS_CHILD);
536
537 infoPtr->hwndCombo = CreateWindowA ("ComboBox", "",
538 /* following line added to match native */
539 WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VSCROLL | CBS_NOINTEGRALHEIGHT |
540 /* was base and is necessary */
541 WS_CHILD | WS_VISIBLE | CBS_OWNERDRAWFIXED | dwComboStyle,
542 cs->y, cs->x, cs->cx, cs->cy, hwnd, (HMENU)0,
543 GetWindowLongA (hwnd, GWL_HINSTANCE), NULL);
544
545 /* *** new *** */
546 SystemParametersInfoA (SPI_GETICONTITLELOGFONT, sizeof(mylogfont), &mylogfont, 0);
547 infoPtr->font = CreateFontIndirectA (&mylogfont);
548 SendMessageA (infoPtr->hwndCombo, WM_SETFONT, (WPARAM)infoPtr->font, 0);
549 COMBOEX_ReSize (hwnd, infoPtr);
550 /* *** end new *** */
551
552 return 0;
553 }
554
555
556 inline static LRESULT
557 COMBOEX_DrawItem (HWND hwnd, WPARAM wParam, LPARAM lParam)
558 {
559 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
560 DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)lParam;
561 CBE_ITEMDATA *item;
562 SIZE txtsize;
563 COLORREF nbkc, ntxc;
564 RECT rect;
565 int drawimage;
566 UINT x, xbase, y;
567 UINT xioff = 0; /* size and spacer of image if any */
568 IMAGEINFO iinfo;
569 INT len;
570
571 if (!IsWindowEnabled(infoPtr->hwndCombo)) return 0;
572
573 item = (CBE_ITEMDATA *)SendMessageA (infoPtr->hwndCombo, CB_GETITEMDATA,
574 (WPARAM)dis->itemID, 0);
575 if (!TRACE_ON(message)) {
576 TRACE("DRAWITEMSTRUCT: CtlType=0x%08x CtlID=0x%08x\n",
577 dis->CtlType, dis->CtlID);
578 TRACE("itemID=0x%08x itemAction=0x%08x itemState=0x%08x\n",
579 dis->itemID, dis->itemAction, dis->itemState);
580 TRACE("hWnd=0x%04x hDC=0x%04x (%d,%d)-(%d,%d) itemData=0x%08lx\n",
581 dis->hwndItem, dis->hDC, dis->rcItem.left,
582 dis->rcItem.top, dis->rcItem.right, dis->rcItem.bottom,
583 dis->itemData);
584 }
585 COMBOEX_DumpItem (item);
586
587 xbase = CBE_STARTOFFSET;
588 if (item->mask & CBEIF_INDENT)
589 xbase += (item->iIndent * CBE_INDENT);
590 if (item->mask & CBEIF_IMAGE) {
591 ImageList_GetImageInfo(infoPtr->himl, item->iImage, &iinfo);
592 xioff = (iinfo.rcImage.right - iinfo.rcImage.left + CBE_SEP);
593 }
594
595 switch (dis->itemAction) {
596 case ODA_FOCUS:
597 if (dis->itemState & ODS_SELECTED /*1*/) {
598 if ((item->mask & CBEIF_TEXT) && item->pszText) {
599 len = strlenW (item->pszText);
600 GetTextExtentPointW (dis->hDC, item->pszText, len, &txtsize);
601 rect.left = xbase + xioff - 1;
602 rect.top = dis->rcItem.top - 1 +
603 (dis->rcItem.bottom - dis->rcItem.top - txtsize.cy) / 2;
604 rect.right = rect.left + txtsize.cx + 2;
605 rect.bottom = rect.top + txtsize.cy + 2;
606 TRACE("drawing item %d focus, rect=(%d,%d)-(%d,%d)\n",
607 dis->itemID, rect.left, rect.top,
608 rect.right, rect.bottom);
609 DrawFocusRect(dis->hDC, &rect);
610 }
611 }
612 break;
613 case ODA_SELECT:
614 case ODA_DRAWENTIRE:
615 drawimage = -1;
616 if (item->mask & CBEIF_IMAGE) drawimage = item->iImage;
617 if ((dis->itemState & ODS_SELECTED) &&
618 (item->mask & CBEIF_SELECTEDIMAGE))
619 drawimage = item->iSelectedImage;
620 if (drawimage != -1) {
621 ImageList_Draw (infoPtr->himl, drawimage, dis->hDC,
622 xbase, dis->rcItem.top,
623 (dis->itemState & ODS_SELECTED) ?
624 ILD_SELECTED : ILD_NORMAL);
625 }
626 if ((item->mask & CBEIF_TEXT) && item->pszText) {
627 len = strlenW (item->pszText);
628 GetTextExtentPointW (dis->hDC, item->pszText, len, &txtsize);
629 nbkc = GetSysColor ((dis->itemState & ODS_SELECTED) ?
630 COLOR_HIGHLIGHT : COLOR_WINDOW);
631 SetBkColor (dis->hDC, nbkc);
632 ntxc = GetSysColor ((dis->itemState & ODS_SELECTED) ?
633 COLOR_HIGHLIGHTTEXT : COLOR_WINDOWTEXT);
634 SetTextColor (dis->hDC, ntxc);
635 x = xbase + xioff;
636 y = dis->rcItem.top +
637 (dis->rcItem.bottom - dis->rcItem.top - txtsize.cy) / 2;
638 rect.left = x;
639 rect.right = x + txtsize.cx;
640 rect.top = y;
641 rect.bottom = y + txtsize.cy;
642 TRACE("drawing item %d text, rect=(%d,%d)-(%d,%d)\n",
643 dis->itemID, rect.left, rect.top, rect.right, rect.bottom);
644 ExtTextOutW (dis->hDC, x, y, ETO_OPAQUE | ETO_CLIPPED,
645 &rect, item->pszText, len, 0);
646 if (dis->itemState & ODS_FOCUS) {
647 rect.top -= 1;
648 rect.bottom += 1;
649 rect.left -= 1;
650 rect.right += 2;
651 TRACE("drawing item %d focus, rect=(%d,%d)-(%d,%d)\n",
652 dis->itemID, rect.left, rect.top, rect.right, rect.bottom);
653 DrawFocusRect (dis->hDC, &rect);
654 }
655 }
656 break;
657 default:
658 FIXME("unknown action hwnd=%08x, wparam=%08x, lparam=%08lx, action=%d\n",
659 hwnd, wParam, lParam, dis->itemAction);
660 }
661
662 return 0;
663 }
664
665
666 static LRESULT
667 COMBOEX_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
668 {
669 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
670
671 if (infoPtr->hwndCombo)
672 DestroyWindow (infoPtr->hwndCombo);
673
674 if (infoPtr->items) {
675 CBE_ITEMDATA *this, *next;
676
677 this = infoPtr->items;
678 while (this) {
679 next = (CBE_ITEMDATA *)this->next;
680 if ((this->mask & CBEIF_TEXT) && this->pszText)
681 COMCTL32_Free (this->pszText);
682 COMCTL32_Free (this);
683 this = next;
684 }
685 }
686
687 DeleteObject (infoPtr->font);
688
689 /* free comboex info data */
690 COMCTL32_Free (infoPtr);
691 SetWindowLongA (hwnd, 0, 0);
692 return 0;
693 }
694
695
696 static LRESULT
697 COMBOEX_MeasureItem (HWND hwnd, WPARAM wParam, LPARAM lParam)
698 {
699 /*COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);*/
700 MEASUREITEMSTRUCT *mis = (MEASUREITEMSTRUCT *) lParam;
701 HDC hdc;
702 SIZE mysize;
703
704 hdc = GetDC (0);
705 GetTextExtentPointA (hdc, "W", 1, &mysize);
706 ReleaseDC (0, hdc);
707 mis->itemHeight = mysize.cy + CBE_EXTRA;
708
709 TRACE("adjusted height hwnd=%08x, height=%d\n",
710 hwnd, mis->itemHeight);
711
712 return 0;
713 }
714
715
716 static LRESULT
717 COMBOEX_Size (HWND hwnd, WPARAM wParam, LPARAM lParam)
718 {
719 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
720 RECT rect;
721
722 GetClientRect (hwnd, &rect);
723
724 MoveWindow (infoPtr->hwndCombo, 0, 0, rect.right -rect.left,
725 rect.bottom - rect.top, TRUE);
726
727 return 0;
728 }
729
730
731 static LRESULT
732 COMBOEX_WindowPosChanging (HWND hwnd, WPARAM wParam, LPARAM lParam)
733 {
734 COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
735 LRESULT ret;
736 RECT cbx_wrect, cbx_crect, cb_wrect;
737 UINT width;
738 WINDOWPOS *wp = (WINDOWPOS *)lParam;
739
740 ret = DefWindowProcA (hwnd, WM_WINDOWPOSCHANGING, wParam, lParam);
741 GetWindowRect (hwnd, &cbx_wrect);
742 GetClientRect (hwnd, &cbx_crect);
743 GetWindowRect (infoPtr->hwndCombo, &cb_wrect);
744
745 /* width is winpos value + border width of comboex */
746 width = wp->cx
747 + cbx_wrect.right-cbx_wrect.left
748 - (cbx_crect.right - cbx_crect.left);
749
750 TRACE("EX window=(%d,%d)-(%d,%d), client=(%d,%d)-(%d,%d)\n",
751 cbx_wrect.left, cbx_wrect.top, cbx_wrect.right, cbx_wrect.bottom,
752 cbx_crect.left, cbx_crect.top, cbx_crect.right, cbx_crect.bottom);
753 TRACE("CB window=(%d,%d)-(%d,%d), EX setting=(0,0)-(%d,%d)\n",
754 cb_wrect.left, cb_wrect.top, cb_wrect.right, cb_wrect.bottom,
755 width, cb_wrect.bottom-cb_wrect.top);
756
757 SetWindowPos (infoPtr->hwndCombo, HWND_TOP, 0, 0,
758 width,
759 cb_wrect.bottom-cb_wrect.top,
760 SWP_NOACTIVATE);
761
762 return 0;
763 }
764
765
766 static LRESULT WINAPI
767 COMBOEX_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
768 {
769 TRACE("hwnd=%x msg=%x wparam=%x lParam=%lx\n", hwnd, uMsg, wParam, lParam);
770 if (!COMBOEX_GetInfoPtr (hwnd) && (uMsg != WM_CREATE))
771 return DefWindowProcA (hwnd, uMsg, wParam, lParam);
772
773 switch (uMsg)
774 {
775 /* case CBEM_DELETEITEM: */
776
777 case CBEM_GETCOMBOCONTROL:
778 return COMBOEX_GetComboControl (hwnd, wParam, lParam);
779
780 case CBEM_GETEDITCONTROL:
781 return COMBOEX_GetEditControl (hwnd, wParam, lParam);
782
783 case CBEM_GETEXTENDEDSTYLE:
784 return COMBOEX_GetExtendedStyle (hwnd, wParam, lParam);
785
786 case CBEM_GETIMAGELIST:
787 return COMBOEX_GetImageList (hwnd, wParam, lParam);
788
789 /* case CBEM_GETITEMA:
790 case CBEM_GETITEMW:
791 case CBEM_GETUNICODEFORMAT:
792 case CBEM_HASEDITCHANGED:
793 */
794
795 case CBEM_INSERTITEMA:
796 return COMBOEX_InsertItemA (hwnd, wParam, lParam);
797
798 case CBEM_INSERTITEMW:
799 return COMBOEX_InsertItemW (hwnd, wParam, lParam);
800
801 case CBEM_SETEXTENDEDSTYLE:
802 return COMBOEX_SetExtendedStyle (hwnd, wParam, lParam);
803
804 case CBEM_SETIMAGELIST:
805 return COMBOEX_SetImageList (hwnd, wParam, lParam);
806
807 case CBEM_SETITEMA:
808 return COMBOEX_SetItemA (hwnd, wParam, lParam);
809
810 /* case CBEM_SETITEMW:
811 case CBEM_SETUNICODEFORMAT:
812 */
813
814 case CB_DELETESTRING:
815 case CB_FINDSTRINGEXACT:
816 case CB_GETCOUNT:
817 case CB_GETCURSEL:
818 case CB_GETDROPPEDCONTROLRECT:
819 case CB_GETDROPPEDSTATE:
820 case CB_GETITEMDATA:
821 case CB_GETITEMHEIGHT:
822 case CB_GETLBTEXT:
823 case CB_GETLBTEXTLEN:
824 case CB_GETEXTENDEDUI:
825 case CB_LIMITTEXT:
826 case CB_RESETCONTENT:
827 case CB_SELECTSTRING:
828 case CB_SETCURSEL:
829 case CB_SETDROPPEDWIDTH:
830 case CB_SETEXTENDEDUI:
831 case CB_SETITEMDATA:
832 case CB_SHOWDROPDOWN:
833 return COMBOEX_Forward (hwnd, uMsg, wParam, lParam);
834
835 case CB_SETITEMHEIGHT:
836 return COMBOEX_SetItemHeight (hwnd, wParam, lParam);
837
838
839 case WM_CREATE:
840 return COMBOEX_Create (hwnd, wParam, lParam);
841
842 case WM_DRAWITEM:
843 return COMBOEX_DrawItem (hwnd, wParam, lParam);
844
845 case WM_DESTROY:
846 return COMBOEX_Destroy (hwnd, wParam, lParam);
847
848 case WM_MEASUREITEM:
849 return COMBOEX_MeasureItem (hwnd, wParam, lParam);
850
851 case WM_SIZE:
852 return COMBOEX_Size (hwnd, wParam, lParam);
853
854 case WM_WINDOWPOSCHANGING:
855 return COMBOEX_WindowPosChanging (hwnd, wParam, lParam);
856
857 default:
858 if (uMsg >= WM_USER)
859 ERR("unknown msg %04x wp=%08x lp=%08lx\n",
860 uMsg, wParam, lParam);
861 return DefWindowProcA (hwnd, uMsg, wParam, lParam);
862 }
863 return 0;
864 }
865
866
867 VOID
868 COMBOEX_Register (void)
869 {
870 WNDCLASSA wndClass;
871
872 ZeroMemory (&wndClass, sizeof(WNDCLASSA));
873 wndClass.style = CS_GLOBALCLASS;
874 wndClass.lpfnWndProc = (WNDPROC)COMBOEX_WindowProc;
875 wndClass.cbClsExtra = 0;
876 wndClass.cbWndExtra = sizeof(COMBOEX_INFO *);
877 wndClass.hCursor = LoadCursorA (0, IDC_ARROWA);
878 wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
879 wndClass.lpszClassName = WC_COMBOBOXEXA;
880
881 RegisterClassA (&wndClass);
882 }
883
884
885 VOID
886 COMBOEX_Unregister (void)
887 {
888 UnregisterClassA (WC_COMBOBOXEXA, (HINSTANCE)NULL);
889 }
890
Windows API implementation