1 /*
2 * Combo controls
3 *
4 * Copyright 1997 Alex Korobka
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 *
20 * TODO:
21 * - CB_SETTOPINDEX
22 */
23
24 #include <user32.h>
25
26 WINE_DEFAULT_DEBUG_CHANNEL(combo);
27
28 /*
29 * Additional combo box definitions
30 */
31
32 #define CB_NOTIFY( lphc, code ) \
33 (SendMessageW((lphc)->owner, WM_COMMAND, \
34 MAKEWPARAM(GetWindowLongPtrW((lphc)->self,GWLP_ID), (code)), (LPARAM)(lphc)->self))
35
36 #define CB_DISABLED( lphc ) (!IsWindowEnabled((lphc)->self))
37 #define CB_OWNERDRAWN( lphc ) ((lphc)->dwStyle & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE))
38 #define CB_HASSTRINGS( lphc ) ((lphc)->dwStyle & CBS_HASSTRINGS)
39 #define CB_HWND( lphc ) ((lphc)->self)
40 #ifndef __REACTOS__
41 /* ReactOS already define in include/controls.h We have it here as a sync note. */
42 #define CB_GETTYPE( lphc ) ((lphc)->dwStyle & (CBS_DROPDOWNLIST))
43 #endif
44
45 #define ISWIN31 (LOWORD(GetVersion()) == 0x0a03)
46
47 /*
48 * Drawing globals
49 */
50 static HBITMAP hComboBmp = 0;
51 static UINT CBitHeight, CBitWidth;
52
53 /*
54 * Look and feel dependent "constants"
55 */
56
57 #define COMBO_YBORDERGAP 5
58 #define COMBO_XBORDERSIZE() 2
59 #define COMBO_YBORDERSIZE() 2
60 #define COMBO_EDITBUTTONSPACE() 0
61 #define EDIT_CONTROL_PADDING() 1
62
63 /*********************************************************************
64 * combo class descriptor
65 */
66 static const WCHAR comboboxW[] = {'C','o','m','b','o','B','o','x',0};
67 const struct builtin_class_descr COMBO_builtin_class =
68 {
69 comboboxW, /* name */
70 CS_PARENTDC | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW, /* style */
71 #ifdef __REACTOS__
72 ComboWndProcA, /* procA */
73 ComboWndProcW, /* procW */
74 #else
75 WINPROC_COMBO, /* proc */
76 #endif
77 sizeof(HEADCOMBO *), /* extra */
78 IDC_ARROW, /* cursor */
79 0 /* brush */
80 };
81
82
83 /***********************************************************************
84 * COMBO_Init
85 *
86 * Load combo button bitmap.
87 */
COMBO_Init(void)88 static BOOL COMBO_Init(void)
89 {
90 HDC hDC;
91
92 if( hComboBmp ) return TRUE;
93 if( (hDC = CreateCompatibleDC(0)) )
94 {
95 BOOL bRet = FALSE;
96 if( (hComboBmp = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_COMBO))) )
97 {
98 BITMAP bm;
99 HBITMAP hPrevB;
100 RECT r;
101
102 GetObjectW( hComboBmp, sizeof(bm), &bm );
103 CBitHeight = bm.bmHeight;
104 CBitWidth = bm.bmWidth;
105
106 TRACE("combo bitmap [%i,%i]\n", CBitWidth, CBitHeight );
107
108 hPrevB = SelectObject( hDC, hComboBmp);
109 SetRect( &r, 0, 0, CBitWidth, CBitHeight );
110 InvertRect( hDC, &r );
111 SelectObject( hDC, hPrevB );
112 bRet = TRUE;
113 }
114 DeleteDC( hDC );
115 return bRet;
116 }
117 return FALSE;
118 }
119
120 #ifdef __REACTOS__
121 /* Retrieve the UI state for the control */
COMBO_update_uistate(LPHEADCOMBO lphc)122 static BOOL COMBO_update_uistate(LPHEADCOMBO lphc)
123 {
124 LONG prev_flags;
125
126 prev_flags = lphc->UIState;
127 lphc->UIState = DefWindowProcW(lphc->self, WM_QUERYUISTATE, 0, 0);
128 return prev_flags != lphc->UIState;
129 }
130 #endif
131
132 /***********************************************************************
133 * COMBO_NCCreate
134 */
COMBO_NCCreate(HWND hwnd,LONG style)135 static LRESULT COMBO_NCCreate(HWND hwnd, LONG style)
136 {
137 LPHEADCOMBO lphc;
138
139 if (COMBO_Init() && (lphc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HEADCOMBO))) )
140 {
141 lphc->self = hwnd;
142 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)lphc );
143
144 #ifdef __REACTOS__
145 COMBO_update_uistate(lphc);
146 #endif
147
148 /* some braindead apps do try to use scrollbar/border flags */
149
150 lphc->dwStyle = style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
151 SetWindowLongPtrW( hwnd, GWL_STYLE, style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL) );
152
153 /*
154 * We also have to remove the client edge style to make sure
155 * we don't end-up with a non client area.
156 */
157 SetWindowLongPtrW( hwnd, GWL_EXSTYLE,
158 GetWindowLongPtrW( hwnd, GWL_EXSTYLE ) & ~WS_EX_CLIENTEDGE );
159
160 if( !(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
161 lphc->dwStyle |= CBS_HASSTRINGS;
162 if( !(GetWindowLongPtrW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) )
163 lphc->wState |= CBF_NOTIFY;
164
165 TRACE("[%p], style = %08x\n", lphc, lphc->dwStyle );
166 return TRUE;
167 }
168 return FALSE;
169 }
170
171 /***********************************************************************
172 * COMBO_NCDestroy
173 */
COMBO_NCDestroy(LPHEADCOMBO lphc)174 static LRESULT COMBO_NCDestroy( LPHEADCOMBO lphc )
175 {
176 if (lphc)
177 {
178 TRACE("[%p]: freeing storage\n", lphc->self);
179
180 if ( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
181 DestroyWindow( lphc->hWndLBox );
182
183 SetWindowLongPtrW( lphc->self, 0, 0 );
184 HeapFree( GetProcessHeap(), 0, lphc );
185 }
186 return 0;
187 }
188
189 /***********************************************************************
190 * CBGetTextAreaHeight
191 *
192 * This method will calculate the height of the text area of the
193 * combobox.
194 * The height of the text area is set in two ways.
195 * It can be set explicitly through a combobox message or through a
196 * WM_MEASUREITEM callback.
197 * If this is not the case, the height is set to font height + 4px
198 * This height was determined through experimentation.
199 * CBCalcPlacement will add 2*COMBO_YBORDERSIZE pixels for the border
200 */
CBGetTextAreaHeight(HWND hwnd,LPHEADCOMBO lphc)201 static INT CBGetTextAreaHeight(
202 HWND hwnd,
203 LPHEADCOMBO lphc)
204 {
205 INT iTextItemHeight;
206
207 if( lphc->editHeight ) /* explicitly set height */
208 {
209 iTextItemHeight = lphc->editHeight;
210 }
211 else
212 {
213 TEXTMETRICW tm;
214 HDC hDC = GetDC(hwnd);
215 HFONT hPrevFont = 0;
216 INT baseUnitY;
217
218 if (lphc->hFont)
219 hPrevFont = SelectObject( hDC, lphc->hFont );
220
221 GetTextMetricsW(hDC, &tm);
222
223 baseUnitY = tm.tmHeight;
224
225 if( hPrevFont )
226 SelectObject( hDC, hPrevFont );
227
228 ReleaseDC(hwnd, hDC);
229
230 iTextItemHeight = baseUnitY + 4;
231 }
232
233 /*
234 * Check the ownerdraw case if we haven't asked the parent the size
235 * of the item yet.
236 */
237 if ( CB_OWNERDRAWN(lphc) &&
238 (lphc->wState & CBF_MEASUREITEM) )
239 {
240 MEASUREITEMSTRUCT measureItem;
241 RECT clientRect;
242 INT originalItemHeight = iTextItemHeight;
243 UINT id = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
244
245 /*
246 * We use the client rect for the width of the item.
247 */
248 GetClientRect(hwnd, &clientRect);
249
250 lphc->wState &= ~CBF_MEASUREITEM;
251
252 /*
253 * Send a first one to measure the size of the text area
254 */
255 measureItem.CtlType = ODT_COMBOBOX;
256 measureItem.CtlID = id;
257 measureItem.itemID = -1;
258 measureItem.itemWidth = clientRect.right;
259 measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
260 measureItem.itemData = 0;
261 SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
262 iTextItemHeight = 6 + measureItem.itemHeight;
263
264 /*
265 * Send a second one in the case of a fixed ownerdraw list to calculate the
266 * size of the list items. (we basically do this on behalf of the listbox)
267 */
268 if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
269 {
270 measureItem.CtlType = ODT_COMBOBOX;
271 measureItem.CtlID = id;
272 measureItem.itemID = 0;
273 measureItem.itemWidth = clientRect.right;
274 measureItem.itemHeight = originalItemHeight;
275 measureItem.itemData = 0;
276 SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
277 lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
278 }
279
280 /*
281 * Keep the size for the next time
282 */
283 lphc->editHeight = iTextItemHeight;
284 }
285
286 return iTextItemHeight;
287 }
288
289 /***********************************************************************
290 * CBForceDummyResize
291 *
292 * The dummy resize is used for listboxes that have a popup to trigger
293 * a re-arranging of the contents of the combobox and the recalculation
294 * of the size of the "real" control window.
295 */
CBForceDummyResize(LPHEADCOMBO lphc)296 static void CBForceDummyResize(
297 LPHEADCOMBO lphc)
298 {
299 RECT windowRect;
300 int newComboHeight;
301
302 newComboHeight = CBGetTextAreaHeight(lphc->self,lphc) + 2*COMBO_YBORDERSIZE();
303
304 GetWindowRect(lphc->self, &windowRect);
305
306 /*
307 * We have to be careful, resizing a combobox also has the meaning that the
308 * dropped rect will be resized. In this case, we want to trigger a resize
309 * to recalculate layout but we don't want to change the dropped rectangle
310 * So, we pass the height of text area of control as the height.
311 * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
312 * message.
313 */
314 SetWindowPos( lphc->self,
315 NULL,
316 0, 0,
317 windowRect.right - windowRect.left,
318 newComboHeight,
319 SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
320 }
321
322 /***********************************************************************
323 * CBCalcPlacement
324 *
325 * Set up component coordinates given valid lphc->RectCombo.
326 */
CBCalcPlacement(HWND hwnd,LPHEADCOMBO lphc,LPRECT lprEdit,LPRECT lprButton,LPRECT lprLB)327 static void CBCalcPlacement(
328 HWND hwnd,
329 LPHEADCOMBO lphc,
330 LPRECT lprEdit,
331 LPRECT lprButton,
332 LPRECT lprLB)
333 {
334 /*
335 * Again, start with the client rectangle.
336 */
337 GetClientRect(hwnd, lprEdit);
338
339 /*
340 * Remove the borders
341 */
342 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
343
344 /*
345 * Chop off the bottom part to fit with the height of the text area.
346 */
347 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
348
349 /*
350 * The button starts the same vertical position as the text area.
351 */
352 CopyRect(lprButton, lprEdit);
353
354 /*
355 * If the combobox is "simple" there is no button.
356 */
357 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
358 lprButton->left = lprButton->right = lprButton->bottom = 0;
359 else
360 {
361 /*
362 * Let's assume the combobox button is the same width as the
363 * scrollbar button.
364 * size the button horizontally and cut-off the text area.
365 */
366 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
367 lprEdit->right = lprButton->left;
368 }
369
370 /*
371 * In the case of a dropdown, there is an additional spacing between the
372 * text area and the button.
373 */
374 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
375 {
376 lprEdit->right -= COMBO_EDITBUTTONSPACE();
377 }
378
379 /*
380 * If we have an edit control, we space it away from the borders slightly.
381 */
382 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
383 {
384 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
385 }
386
387 /*
388 * Adjust the size of the listbox popup.
389 */
390 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
391 {
392 /*
393 * Use the client rectangle to initialize the listbox rectangle
394 */
395 GetClientRect(hwnd, lprLB);
396
397 /*
398 * Then, chop-off the top part.
399 */
400 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
401 }
402 else
403 {
404 /*
405 * Make sure the dropped width is as large as the combobox itself.
406 */
407 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
408 {
409 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
410
411 /*
412 * In the case of a dropdown, the popup listbox is offset to the right.
413 * so, we want to make sure it's flush with the right side of the
414 * combobox
415 */
416 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
417 lprLB->right -= COMBO_EDITBUTTONSPACE();
418 }
419 else
420 lprLB->right = lprLB->left + lphc->droppedWidth;
421 }
422
423 /* don't allow negative window width */
424 if (lprEdit->right < lprEdit->left)
425 lprEdit->right = lprEdit->left;
426
427 TRACE("\ttext\t= (%s)\n", wine_dbgstr_rect(lprEdit));
428
429 TRACE("\tbutton\t= (%s)\n", wine_dbgstr_rect(lprButton));
430
431 TRACE("\tlbox\t= (%s)\n", wine_dbgstr_rect(lprLB));
432 }
433
434 /***********************************************************************
435 * CBGetDroppedControlRect
436 */
CBGetDroppedControlRect(LPHEADCOMBO lphc,LPRECT lpRect)437 static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
438 {
439 /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
440 of the combo box and the lower right corner of the listbox */
441
442 GetWindowRect(lphc->self, lpRect);
443
444 lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
445 lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
446
447 }
448
449 /***********************************************************************
450 * COMBO_Create
451 */
COMBO_Create(HWND hwnd,LPHEADCOMBO lphc,HWND hwndParent,LONG style,BOOL unicode)452 static LRESULT COMBO_Create( HWND hwnd, LPHEADCOMBO lphc, HWND hwndParent, LONG style,
453 BOOL unicode )
454 {
455 static const WCHAR clbName[] = {'C','o','m','b','o','L','B','o','x',0};
456 static const WCHAR editName[] = {'E','d','i','t',0};
457
458 if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
459 if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
460
461 lphc->owner = hwndParent;
462
463 /*
464 * The item height and dropped width are not set when the control
465 * is created.
466 */
467 lphc->droppedWidth = lphc->editHeight = 0;
468
469 /*
470 * The first time we go through, we want to measure the ownerdraw item
471 */
472 lphc->wState |= CBF_MEASUREITEM;
473
474 /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
475
476 if( lphc->owner || !(style & WS_VISIBLE) )
477 {
478 UINT lbeStyle = 0;
479 UINT lbeExStyle = 0;
480
481 /*
482 * Initialize the dropped rect to the size of the client area of the
483 * control and then, force all the areas of the combobox to be
484 * recalculated.
485 */
486 GetClientRect( hwnd, &lphc->droppedRect );
487 CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
488
489 /*
490 * Adjust the position of the popup listbox if it's necessary
491 */
492 if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
493 {
494 lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
495
496 /*
497 * If it's a dropdown, the listbox is offset
498 */
499 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
500 lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
501
502 if (lphc->droppedRect.bottom < lphc->droppedRect.top)
503 lphc->droppedRect.bottom = lphc->droppedRect.top;
504 if (lphc->droppedRect.right < lphc->droppedRect.left)
505 lphc->droppedRect.right = lphc->droppedRect.left;
506 MapWindowPoints( hwnd, 0, (LPPOINT)&lphc->droppedRect, 2 );
507 }
508
509 /* create listbox popup */
510
511 lbeStyle = (LBS_NOTIFY | LBS_COMBOBOX | WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD) |
512 (style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
513
514 if( lphc->dwStyle & CBS_SORT )
515 lbeStyle |= LBS_SORT;
516 if( lphc->dwStyle & CBS_HASSTRINGS )
517 lbeStyle |= LBS_HASSTRINGS;
518 if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
519 lbeStyle |= LBS_NOINTEGRALHEIGHT;
520 if( lphc->dwStyle & CBS_DISABLENOSCROLL )
521 lbeStyle |= LBS_DISABLENOSCROLL;
522
523 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
524 {
525 lbeStyle |= WS_VISIBLE;
526
527 /*
528 * In win 95 look n feel, the listbox in the simple combobox has
529 * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
530 */
531 lbeStyle &= ~WS_BORDER;
532 lbeExStyle |= WS_EX_CLIENTEDGE;
533 }
534 else
535 {
536 lbeExStyle |= (WS_EX_TOPMOST | WS_EX_TOOLWINDOW);
537 }
538
539 if (unicode)
540 lphc->hWndLBox = CreateWindowExW(lbeExStyle, clbName, NULL, lbeStyle,
541 lphc->droppedRect.left,
542 lphc->droppedRect.top,
543 lphc->droppedRect.right - lphc->droppedRect.left,
544 lphc->droppedRect.bottom - lphc->droppedRect.top,
545 hwnd, (HMENU)ID_CB_LISTBOX,
546 (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), lphc );
547 else
548 lphc->hWndLBox = CreateWindowExA(lbeExStyle, "ComboLBox", NULL, lbeStyle,
549 lphc->droppedRect.left,
550 lphc->droppedRect.top,
551 lphc->droppedRect.right - lphc->droppedRect.left,
552 lphc->droppedRect.bottom - lphc->droppedRect.top,
553 hwnd, (HMENU)ID_CB_LISTBOX,
554 (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), lphc );
555
556 if( lphc->hWndLBox )
557 {
558 BOOL bEdit = TRUE;
559 lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT | ES_COMBO;
560
561 if( lphc->wState & CBF_EDIT )
562 {
563 if( lphc->dwStyle & CBS_OEMCONVERT )
564 lbeStyle |= ES_OEMCONVERT;
565 if( lphc->dwStyle & CBS_AUTOHSCROLL )
566 lbeStyle |= ES_AUTOHSCROLL;
567 if( lphc->dwStyle & CBS_LOWERCASE )
568 lbeStyle |= ES_LOWERCASE;
569 else if( lphc->dwStyle & CBS_UPPERCASE )
570 lbeStyle |= ES_UPPERCASE;
571
572 if (!IsWindowEnabled(hwnd)) lbeStyle |= WS_DISABLED;
573
574 if (unicode)
575 lphc->hWndEdit = CreateWindowExW(0, editName, NULL, lbeStyle,
576 lphc->textRect.left, lphc->textRect.top,
577 lphc->textRect.right - lphc->textRect.left,
578 lphc->textRect.bottom - lphc->textRect.top,
579 hwnd, (HMENU)ID_CB_EDIT,
580 (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), NULL );
581 else
582 lphc->hWndEdit = CreateWindowExA(0, "Edit", NULL, lbeStyle,
583 lphc->textRect.left, lphc->textRect.top,
584 lphc->textRect.right - lphc->textRect.left,
585 lphc->textRect.bottom - lphc->textRect.top,
586 hwnd, (HMENU)ID_CB_EDIT,
587 (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), NULL );
588
589 if( !lphc->hWndEdit )
590 bEdit = FALSE;
591 }
592
593 if( bEdit )
594 {
595 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
596 {
597 /* Now do the trick with parent */
598 SetParent(lphc->hWndLBox, HWND_DESKTOP);
599 /*
600 * If the combo is a dropdown, we must resize the control
601 * to fit only the text area and button. To do this,
602 * we send a dummy resize and the WM_WINDOWPOSCHANGING message
603 * will take care of setting the height for us.
604 */
605 CBForceDummyResize(lphc);
606 }
607
608 TRACE("init done\n");
609 return 0;
610 }
611 ERR("edit control failure.\n");
612 } else ERR("listbox failure.\n");
613 } else ERR("no owner for visible combo.\n");
614
615 /* CreateWindow() will send WM_NCDESTROY to cleanup */
616
617 return -1;
618 }
619
620 /***********************************************************************
621 * CBPaintButton
622 *
623 * Paint combo button (normal, pressed, and disabled states).
624 */
CBPaintButton(LPHEADCOMBO lphc,HDC hdc,RECT rectButton)625 static void CBPaintButton( LPHEADCOMBO lphc, HDC hdc, RECT rectButton)
626 {
627 UINT buttonState = DFCS_SCROLLCOMBOBOX;
628
629 if( lphc->wState & CBF_NOREDRAW )
630 return;
631
632
633 if (lphc->wState & CBF_BUTTONDOWN)
634 buttonState |= DFCS_PUSHED;
635
636 if (CB_DISABLED(lphc))
637 buttonState |= DFCS_INACTIVE;
638
639 DrawFrameControl(hdc, &rectButton, DFC_SCROLL, buttonState);
640 }
641
642 /***********************************************************************
643 * COMBO_PrepareColors
644 *
645 * This method will sent the appropriate WM_CTLCOLOR message to
646 * prepare and setup the colors for the combo's DC.
647 *
648 * It also returns the brush to use for the background.
649 */
COMBO_PrepareColors(LPHEADCOMBO lphc,HDC hDC)650 static HBRUSH COMBO_PrepareColors(
651 LPHEADCOMBO lphc,
652 HDC hDC)
653 {
654 HBRUSH hBkgBrush;
655
656 /*
657 * Get the background brush for this control.
658 */
659 if (CB_DISABLED(lphc))
660 {
661 #ifdef __REACTOS__
662 hBkgBrush = GetControlColor(lphc->owner, lphc->self, hDC, WM_CTLCOLORSTATIC);
663 #else
664 hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLORSTATIC,
665 (WPARAM)hDC, (LPARAM)lphc->self );
666 #endif
667 /*
668 * We have to change the text color since WM_CTLCOLORSTATIC will
669 * set it to the "enabled" color. This is the same behavior as the
670 * edit control
671 */
672 SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
673 }
674 else
675 {
676 /* FIXME: In which cases WM_CTLCOLORLISTBOX should be sent? */
677 #ifdef __REACTOS__
678 hBkgBrush = GetControlColor(lphc->owner, lphc->self, hDC, WM_CTLCOLOREDIT);
679 #else
680 hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLOREDIT,
681 (WPARAM)hDC, (LPARAM)lphc->self );
682 #endif
683 }
684
685 /*
686 * Catch errors.
687 */
688 if( !hBkgBrush )
689 hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
690
691 return hBkgBrush;
692 }
693
694 /***********************************************************************
695 * CBPaintText
696 *
697 * Paint CBS_DROPDOWNLIST text field / update edit control contents.
698 */
CBPaintText(LPHEADCOMBO lphc,HDC hdc_paint)699 static void CBPaintText(
700 LPHEADCOMBO lphc,
701 HDC hdc_paint)
702 {
703 RECT rectEdit = lphc->textRect;
704 INT id, size = 0;
705 LPWSTR pText = NULL;
706
707 TRACE("\n");
708
709 /* follow Windows combobox that sends a bunch of text
710 * inquiries to its listbox while processing WM_PAINT. */
711
712 if( (id = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
713 {
714 size = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
715 if (size == LB_ERR)
716 FIXME("LB_ERR probably not handled yet\n");
717 if( (pText = HeapAlloc( GetProcessHeap(), 0, (size + 1) * sizeof(WCHAR))) )
718 {
719 /* size from LB_GETTEXTLEN may be too large, from LB_GETTEXT is accurate */
720 size=SendMessageW(lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText);
721 pText[size] = '\0'; /* just in case */
722 } else return;
723 }
724
725 if( lphc->wState & CBF_EDIT )
726 {
727 static const WCHAR empty_stringW[] = { 0 };
728 if( CB_HASSTRINGS(lphc) ) SetWindowTextW( lphc->hWndEdit, pText ? pText : empty_stringW );
729 if( lphc->wState & CBF_FOCUSED )
730 SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, MAXLONG);
731 }
732 else if(!(lphc->wState & CBF_NOREDRAW) && IsWindowVisible( lphc->self ))
733 {
734 /* paint text field ourselves */
735 HDC hdc = hdc_paint ? hdc_paint : GetDC(lphc->self);
736 UINT itemState = ODS_COMBOBOXEDIT;
737 HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
738 HBRUSH hPrevBrush, hBkgBrush;
739
740 /*
741 * Give ourselves some space.
742 */
743 InflateRect( &rectEdit, -1, -1 );
744
745 hBkgBrush = COMBO_PrepareColors( lphc, hdc );
746 hPrevBrush = SelectObject( hdc, hBkgBrush );
747 FillRect( hdc, &rectEdit, hBkgBrush );
748
749 if( CB_OWNERDRAWN(lphc) )
750 {
751 DRAWITEMSTRUCT dis;
752 HRGN clipRegion;
753 UINT ctlid = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
754
755 /* setup state for DRAWITEM message. Owner will highlight */
756 if ( (lphc->wState & CBF_FOCUSED) &&
757 !(lphc->wState & CBF_DROPPED) )
758 itemState |= ODS_SELECTED | ODS_FOCUS;
759
760 if (!IsWindowEnabled(lphc->self)) itemState |= ODS_DISABLED;
761
762 dis.CtlType = ODT_COMBOBOX;
763 dis.CtlID = ctlid;
764 dis.hwndItem = lphc->self;
765 dis.itemAction = ODA_DRAWENTIRE;
766 dis.itemID = id;
767 dis.itemState = itemState;
768 dis.hDC = hdc;
769 dis.rcItem = rectEdit;
770 dis.itemData = SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, id, 0);
771
772 /*
773 * Clip the DC and have the parent draw the item.
774 */
775 clipRegion = set_control_clipping( hdc, &rectEdit );
776
777 SendMessageW(lphc->owner, WM_DRAWITEM, ctlid, (LPARAM)&dis );
778
779 SelectClipRgn( hdc, clipRegion );
780 if (clipRegion) DeleteObject( clipRegion );
781 }
782 else
783 {
784 static const WCHAR empty_stringW[] = { 0 };
785
786 if ( (lphc->wState & CBF_FOCUSED) &&
787 !(lphc->wState & CBF_DROPPED) ) {
788
789 /* highlight */
790 FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
791 SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
792 SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
793 }
794
795 ExtTextOutW( hdc,
796 rectEdit.left + 1,
797 rectEdit.top + 1,
798 ETO_OPAQUE | ETO_CLIPPED,
799 &rectEdit,
800 pText ? pText : empty_stringW , size, NULL );
801
802 #ifdef __REACTOS__
803 if(lphc->wState & CBF_FOCUSED &&
804 !(lphc->wState & CBF_DROPPED) &&
805 !(lphc->UIState & UISF_HIDEFOCUS))
806 #else
807 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
808 #endif
809 DrawFocusRect( hdc, &rectEdit );
810 }
811
812 if( hPrevFont )
813 SelectObject(hdc, hPrevFont );
814
815 if( hPrevBrush )
816 SelectObject( hdc, hPrevBrush );
817
818 if( !hdc_paint )
819 ReleaseDC( lphc->self, hdc );
820 }
821 #ifdef __REACTOS__
822 if (pText)
823 #endif
824 HeapFree( GetProcessHeap(), 0, pText );
825 }
826
827 /***********************************************************************
828 * CBPaintBorder
829 */
CBPaintBorder(HWND hwnd,const HEADCOMBO * lphc,HDC hdc)830 static void CBPaintBorder(
831 HWND hwnd,
832 const HEADCOMBO *lphc,
833 HDC hdc)
834 {
835 RECT clientRect;
836
837 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
838 {
839 GetClientRect(hwnd, &clientRect);
840 }
841 else
842 {
843 CopyRect(&clientRect, &lphc->textRect);
844
845 InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
846 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
847 }
848
849 DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
850 }
851
852 /***********************************************************************
853 * COMBO_Paint
854 */
COMBO_Paint(LPHEADCOMBO lphc,HDC hParamDC)855 static LRESULT COMBO_Paint(LPHEADCOMBO lphc, HDC hParamDC)
856 {
857 PAINTSTRUCT ps;
858 HDC hDC;
859
860 hDC = (hParamDC) ? hParamDC : BeginPaint(lphc->self, &ps);
861
862 TRACE("hdc=%p\n", hDC);
863
864 if( hDC && !(lphc->wState & CBF_NOREDRAW) )
865 {
866 HBRUSH hPrevBrush, hBkgBrush;
867
868 /*
869 * Retrieve the background brush and select it in the
870 * DC.
871 */
872 hBkgBrush = COMBO_PrepareColors(lphc, hDC);
873 hPrevBrush = SelectObject(hDC, hBkgBrush);
874 if (!(lphc->wState & CBF_EDIT))
875 FillRect(hDC, &lphc->textRect, hBkgBrush);
876
877 /*
878 * In non 3.1 look, there is a sunken border on the combobox
879 */
880 CBPaintBorder(lphc->self, lphc, hDC);
881
882 if (!IsRectEmpty(&lphc->buttonRect))
883 CBPaintButton(lphc, hDC, lphc->buttonRect);
884
885 /* paint the edit control padding area */
886 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
887 {
888 RECT rPadEdit = lphc->textRect;
889
890 InflateRect(&rPadEdit, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
891
892 FrameRect(hDC, &rPadEdit, GetSysColorBrush(COLOR_WINDOW));
893 }
894
895 if (!(lphc->wState & CBF_EDIT))
896 CBPaintText( lphc, hDC );
897
898 if (hPrevBrush)
899 SelectObject( hDC, hPrevBrush );
900 }
901
902 if( !hParamDC )
903 EndPaint(lphc->self, &ps);
904
905 return 0;
906 }
907
908 /***********************************************************************
909 * CBUpdateLBox
910 *
911 * Select listbox entry according to the contents of the edit control.
912 */
CBUpdateLBox(LPHEADCOMBO lphc,BOOL bSelect)913 static INT CBUpdateLBox( LPHEADCOMBO lphc, BOOL bSelect )
914 {
915 INT length, idx;
916 LPWSTR pText = NULL;
917
918 idx = LB_ERR;
919 length = SendMessageW( lphc->hWndEdit, WM_GETTEXTLENGTH, 0, 0 );
920
921 if (length > 0)
922 pText = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
923
924 TRACE("\t edit text length %i\n", length );
925
926 if( pText )
927 {
928 GetWindowTextW( lphc->hWndEdit, pText, length + 1);
929 idx = SendMessageW(lphc->hWndLBox, LB_FINDSTRING, (WPARAM)(-1), (LPARAM)pText);
930 HeapFree( GetProcessHeap(), 0, pText );
931 }
932
933 SendMessageW(lphc->hWndLBox, LB_SETCURSEL, (WPARAM)(bSelect ? idx : -1), 0);
934
935 /* probably superfluous but Windows sends this too */
936 SendMessageW(lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0);
937 SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0);
938
939 return idx;
940 }
941
942 /***********************************************************************
943 * CBUpdateEdit
944 *
945 * Copy a listbox entry to the edit control.
946 */
CBUpdateEdit(LPHEADCOMBO lphc,INT index)947 static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
948 {
949 INT length;
950 LPWSTR pText = NULL;
951 static const WCHAR empty_stringW[] = { 0 };
952
953 TRACE("\t %i\n", index );
954
955 if( index >= 0 ) /* got an entry */
956 {
957 length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
958 if( length != LB_ERR)
959 {
960 if ((pText = HeapAlloc(GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR))))
961 SendMessageW(lphc->hWndLBox, LB_GETTEXT, (WPARAM)index, (LPARAM)pText );
962 }
963 }
964
965 if( CB_HASSTRINGS(lphc) )
966 {
967 lphc->wState |= (CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
968 SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)empty_stringW);
969 lphc->wState &= ~(CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
970 }
971
972 if( lphc->wState & CBF_FOCUSED )
973 SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
974
975 HeapFree( GetProcessHeap(), 0, pText );
976 }
977
978 /***********************************************************************
979 * CBDropDown
980 *
981 * Show listbox popup.
982 */
CBDropDown(LPHEADCOMBO lphc)983 static void CBDropDown( LPHEADCOMBO lphc )
984 {
985 HMONITOR monitor;
986 MONITORINFO mon_info;
987 RECT rect,r;
988 int nItems = 0;
989 int nDroppedHeight;
990
991 TRACE("[%p]: drop down\n", lphc->self);
992
993 CB_NOTIFY( lphc, CBN_DROPDOWN );
994
995 /* set selection */
996
997 lphc->wState |= CBF_DROPPED;
998 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
999 {
1000 lphc->droppedIndex = CBUpdateLBox( lphc, TRUE );
1001
1002 /* Update edit only if item is in the list */
1003 if( !(lphc->wState & CBF_CAPTURE) && lphc->droppedIndex >= 0)
1004 CBUpdateEdit( lphc, lphc->droppedIndex );
1005 }
1006 else
1007 {
1008 lphc->droppedIndex = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1009
1010 SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX,
1011 (WPARAM)(lphc->droppedIndex == LB_ERR ? 0 : lphc->droppedIndex), 0);
1012 SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
1013 }
1014
1015 /* now set popup position */
1016 GetWindowRect( lphc->self, &rect );
1017
1018 /*
1019 * If it's a dropdown, the listbox is offset
1020 */
1021 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1022 rect.left += COMBO_EDITBUTTONSPACE();
1023
1024 /* if the dropped height is greater than the total height of the dropped
1025 items list, then force the drop down list height to be the total height
1026 of the items in the dropped list */
1027
1028 /* And Remove any extra space (Best Fit) */
1029 nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
1030 /* if listbox length has been set directly by its handle */
1031 GetWindowRect(lphc->hWndLBox, &r);
1032 if (nDroppedHeight < r.bottom - r.top)
1033 nDroppedHeight = r.bottom - r.top;
1034 nItems = (int)SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
1035
1036 if (nItems > 0)
1037 {
1038 int nHeight;
1039 int nIHeight;
1040
1041 nIHeight = (int)SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, 0, 0);
1042
1043 nHeight = nIHeight*nItems;
1044
1045 if (nHeight < nDroppedHeight - COMBO_YBORDERSIZE())
1046 nDroppedHeight = nHeight + COMBO_YBORDERSIZE();
1047 }
1048
1049 r.left = rect.left;
1050 r.top = rect.bottom;
1051 r.right = r.left + lphc->droppedRect.right - lphc->droppedRect.left;
1052 r.bottom = r.top + nDroppedHeight;
1053
1054 /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
1055 monitor = MonitorFromRect( &rect, MONITOR_DEFAULTTOPRIMARY );
1056 mon_info.cbSize = sizeof(mon_info);
1057 GetMonitorInfoW( monitor, &mon_info );
1058
1059 if (r.bottom > mon_info.rcWork.bottom)
1060 {
1061 r.top = max( rect.top - nDroppedHeight, mon_info.rcWork.top );
1062 r.bottom = min( r.top + nDroppedHeight, mon_info.rcWork.bottom );
1063 }
1064
1065 SetWindowPos( lphc->hWndLBox, HWND_TOPMOST, r.left, r.top, r.right - r.left, r.bottom - r.top,
1066 SWP_NOACTIVATE | SWP_SHOWWINDOW );
1067
1068
1069 if( !(lphc->wState & CBF_NOREDRAW) )
1070 RedrawWindow( lphc->self, NULL, 0, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1071
1072 EnableWindow( lphc->hWndLBox, TRUE );
1073 if (GetCapture() != lphc->self)
1074 SetCapture(lphc->hWndLBox);
1075 }
1076
1077 /***********************************************************************
1078 * CBRollUp
1079 *
1080 * Hide listbox popup.
1081 */
CBRollUp(LPHEADCOMBO lphc,BOOL ok,BOOL bButton)1082 static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
1083 {
1084 HWND hWnd = lphc->self;
1085
1086 TRACE("[%p]: sel ok? [%i] dropped? [%i]\n",
1087 lphc->self, ok, (INT)(lphc->wState & CBF_DROPPED));
1088
1089 CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
1090
1091 if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
1092 {
1093
1094 if( lphc->wState & CBF_DROPPED )
1095 {
1096 RECT rect;
1097
1098 lphc->wState &= ~CBF_DROPPED;
1099 ShowWindow( lphc->hWndLBox, SW_HIDE );
1100
1101 if(GetCapture() == lphc->hWndLBox)
1102 {
1103 ReleaseCapture();
1104 }
1105
1106 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1107 {
1108 rect = lphc->buttonRect;
1109 }
1110 else
1111 {
1112 if( bButton )
1113 {
1114 UnionRect( &rect,
1115 &lphc->buttonRect,
1116 &lphc->textRect);
1117 }
1118 else
1119 rect = lphc->textRect;
1120
1121 bButton = TRUE;
1122 }
1123
1124 if( bButton && !(lphc->wState & CBF_NOREDRAW) )
1125 RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
1126 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1127 CB_NOTIFY( lphc, CBN_CLOSEUP );
1128 }
1129 }
1130 }
1131
1132 /***********************************************************************
1133 * COMBO_FlipListbox
1134 *
1135 * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
1136 */
COMBO_FlipListbox(LPHEADCOMBO lphc,BOOL ok,BOOL bRedrawButton)1137 BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL ok, BOOL bRedrawButton )
1138 {
1139 if( lphc->wState & CBF_DROPPED )
1140 {
1141 CBRollUp( lphc, ok, bRedrawButton );
1142 return FALSE;
1143 }
1144
1145 CBDropDown( lphc );
1146 return TRUE;
1147 }
1148
1149 /***********************************************************************
1150 * CBRepaintButton
1151 */
CBRepaintButton(LPHEADCOMBO lphc)1152 static void CBRepaintButton( LPHEADCOMBO lphc )
1153 {
1154 InvalidateRect(lphc->self, &lphc->buttonRect, TRUE);
1155 UpdateWindow(lphc->self);
1156 }
1157
1158 /***********************************************************************
1159 * COMBO_SetFocus
1160 */
COMBO_SetFocus(LPHEADCOMBO lphc)1161 static void COMBO_SetFocus( LPHEADCOMBO lphc )
1162 {
1163 if( !(lphc->wState & CBF_FOCUSED) )
1164 {
1165 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1166 SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
1167
1168 /* This is wrong. Message sequences seem to indicate that this
1169 is set *after* the notify. */
1170 /* lphc->wState |= CBF_FOCUSED; */
1171
1172 if( !(lphc->wState & CBF_EDIT) )
1173 InvalidateRect(lphc->self, &lphc->textRect, TRUE);
1174
1175 CB_NOTIFY( lphc, CBN_SETFOCUS );
1176 lphc->wState |= CBF_FOCUSED;
1177 }
1178 }
1179
1180 /***********************************************************************
1181 * COMBO_KillFocus
1182 */
COMBO_KillFocus(LPHEADCOMBO lphc)1183 static void COMBO_KillFocus( LPHEADCOMBO lphc )
1184 {
1185 HWND hWnd = lphc->self;
1186
1187 if( lphc->wState & CBF_FOCUSED )
1188 {
1189 CBRollUp( lphc, FALSE, TRUE );
1190 if( IsWindow( hWnd ) )
1191 {
1192 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1193 SendMessageW(lphc->hWndLBox, LB_CARETOFF, 0, 0);
1194
1195 lphc->wState &= ~CBF_FOCUSED;
1196
1197 /* redraw text */
1198 if( !(lphc->wState & CBF_EDIT) )
1199 InvalidateRect(lphc->self, &lphc->textRect, TRUE);
1200
1201 CB_NOTIFY( lphc, CBN_KILLFOCUS );
1202 }
1203 }
1204 }
1205
1206 /***********************************************************************
1207 * COMBO_Command
1208 */
COMBO_Command(LPHEADCOMBO lphc,WPARAM wParam,HWND hWnd)1209 static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd )
1210 {
1211 if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == hWnd )
1212 {
1213 /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
1214
1215 switch( HIWORD(wParam) >> 8 )
1216 {
1217 case (EN_SETFOCUS >> 8):
1218
1219 TRACE("[%p]: edit [%p] got focus\n", lphc->self, lphc->hWndEdit );
1220
1221 COMBO_SetFocus( lphc );
1222 break;
1223
1224 case (EN_KILLFOCUS >> 8):
1225
1226 TRACE("[%p]: edit [%p] lost focus\n", lphc->self, lphc->hWndEdit );
1227
1228 /* NOTE: it seems that Windows' edit control sends an
1229 * undocumented message WM_USER + 0x1B instead of this
1230 * notification (only when it happens to be a part of
1231 * the combo). ?? - AK.
1232 */
1233
1234 COMBO_KillFocus( lphc );
1235 break;
1236
1237
1238 case (EN_CHANGE >> 8):
1239 /*
1240 * In some circumstances (when the selection of the combobox
1241 * is changed for example) we don't want the EN_CHANGE notification
1242 * to be forwarded to the parent of the combobox. This code
1243 * checks a flag that is set in these occasions and ignores the
1244 * notification.
1245 */
1246 if (lphc->wState & CBF_NOLBSELECT)
1247 {
1248 lphc->wState &= ~CBF_NOLBSELECT;
1249 }
1250 else
1251 {
1252 CBUpdateLBox( lphc, lphc->wState & CBF_DROPPED );
1253 }
1254
1255 if (!(lphc->wState & CBF_NOEDITNOTIFY))
1256 CB_NOTIFY( lphc, CBN_EDITCHANGE );
1257 break;
1258
1259 case (EN_UPDATE >> 8):
1260 if (!(lphc->wState & CBF_NOEDITNOTIFY))
1261 CB_NOTIFY( lphc, CBN_EDITUPDATE );
1262 break;
1263
1264 case (EN_ERRSPACE >> 8):
1265 CB_NOTIFY( lphc, CBN_ERRSPACE );
1266 }
1267 }
1268 else if( lphc->hWndLBox == hWnd )
1269 {
1270 switch( (short)HIWORD(wParam) )
1271 {
1272 case LBN_ERRSPACE:
1273 CB_NOTIFY( lphc, CBN_ERRSPACE );
1274 break;
1275
1276 case LBN_DBLCLK:
1277 CB_NOTIFY( lphc, CBN_DBLCLK );
1278 break;
1279
1280 case LBN_SELCHANGE:
1281 case LBN_SELCANCEL:
1282
1283 TRACE("[%p]: lbox selection change [%x]\n", lphc->self, lphc->wState );
1284
1285 /* do not roll up if selection is being tracked
1286 * by arrow keys in the dropdown listbox */
1287 if (!(lphc->wState & CBF_NOROLLUP))
1288 {
1289 CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
1290 }
1291 else lphc->wState &= ~CBF_NOROLLUP;
1292
1293 CB_NOTIFY( lphc, CBN_SELCHANGE );
1294
1295 if( HIWORD(wParam) == LBN_SELCHANGE)
1296 {
1297 if( lphc->wState & CBF_EDIT )
1298 {
1299 INT index = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1300 lphc->wState |= CBF_NOLBSELECT;
1301 CBUpdateEdit( lphc, index );
1302 /* select text in edit, as Windows does */
1303 SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
1304 }
1305 else
1306 {
1307 InvalidateRect(lphc->self, &lphc->textRect, TRUE);
1308 UpdateWindow(lphc->self);
1309 }
1310 }
1311 break;
1312
1313 case LBN_SETFOCUS:
1314 case LBN_KILLFOCUS:
1315 /* nothing to do here since ComboLBox always resets the focus to its
1316 * combo/edit counterpart */
1317 break;
1318 }
1319 }
1320 return 0;
1321 }
1322
1323 /***********************************************************************
1324 * COMBO_ItemOp
1325 *
1326 * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
1327 */
COMBO_ItemOp(LPHEADCOMBO lphc,UINT msg,LPARAM lParam)1328 static LRESULT COMBO_ItemOp( LPHEADCOMBO lphc, UINT msg, LPARAM lParam )
1329 {
1330 HWND hWnd = lphc->self;
1331 UINT id = (UINT)GetWindowLongPtrW( hWnd, GWLP_ID );
1332
1333 TRACE("[%p]: ownerdraw op %04x\n", lphc->self, msg );
1334
1335 switch( msg )
1336 {
1337 case WM_DELETEITEM:
1338 {
1339 DELETEITEMSTRUCT *lpIS = (DELETEITEMSTRUCT *)lParam;
1340 lpIS->CtlType = ODT_COMBOBOX;
1341 lpIS->CtlID = id;
1342 lpIS->hwndItem = hWnd;
1343 break;
1344 }
1345 case WM_DRAWITEM:
1346 {
1347 DRAWITEMSTRUCT *lpIS = (DRAWITEMSTRUCT *)lParam;
1348 lpIS->CtlType = ODT_COMBOBOX;
1349 lpIS->CtlID = id;
1350 lpIS->hwndItem = hWnd;
1351 break;
1352 }
1353 case WM_COMPAREITEM:
1354 {
1355 COMPAREITEMSTRUCT *lpIS = (COMPAREITEMSTRUCT *)lParam;
1356 lpIS->CtlType = ODT_COMBOBOX;
1357 lpIS->CtlID = id;
1358 lpIS->hwndItem = hWnd;
1359 break;
1360 }
1361 case WM_MEASUREITEM:
1362 {
1363 MEASUREITEMSTRUCT *lpIS = (MEASUREITEMSTRUCT *)lParam;
1364 lpIS->CtlType = ODT_COMBOBOX;
1365 lpIS->CtlID = id;
1366 break;
1367 }
1368 }
1369 return SendMessageW(lphc->owner, msg, id, lParam);
1370 }
1371
1372
1373 /***********************************************************************
1374 * COMBO_GetTextW
1375 */
COMBO_GetTextW(LPHEADCOMBO lphc,INT count,LPWSTR buf)1376 static LRESULT COMBO_GetTextW( LPHEADCOMBO lphc, INT count, LPWSTR buf )
1377 {
1378 INT length;
1379
1380 if( lphc->wState & CBF_EDIT )
1381 return SendMessageW( lphc->hWndEdit, WM_GETTEXT, count, (LPARAM)buf );
1382
1383 /* get it from the listbox */
1384
1385 if (!count || !buf) return 0;
1386 if( lphc->hWndLBox )
1387 {
1388 INT idx = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1389 if (idx == LB_ERR) goto error;
1390 length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
1391 if (length == LB_ERR) goto error;
1392
1393 /* 'length' is without the terminating character */
1394 if (length >= count)
1395 {
1396 LPWSTR lpBuffer = HeapAlloc(GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
1397 if (!lpBuffer) goto error;
1398 length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)lpBuffer);
1399
1400 /* truncate if buffer is too short */
1401 if (length != LB_ERR)
1402 {
1403 lstrcpynW( buf, lpBuffer, count );
1404 length = count;
1405 }
1406 HeapFree( GetProcessHeap(), 0, lpBuffer );
1407 }
1408 else length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)buf);
1409
1410 if (length == LB_ERR) return 0;
1411 return length;
1412 }
1413
1414 error: /* error - truncate string, return zero */
1415 buf[0] = 0;
1416 return 0;
1417 }
1418
1419
1420 /***********************************************************************
1421 * COMBO_GetTextA
1422 *
1423 * NOTE! LB_GETTEXT does not count terminating \0, WM_GETTEXT does.
1424 * also LB_GETTEXT might return values < 0, WM_GETTEXT doesn't.
1425 */
COMBO_GetTextA(LPHEADCOMBO lphc,INT count,LPSTR buf)1426 static LRESULT COMBO_GetTextA( LPHEADCOMBO lphc, INT count, LPSTR buf )
1427 {
1428 INT length;
1429
1430 if( lphc->wState & CBF_EDIT )
1431 return SendMessageA( lphc->hWndEdit, WM_GETTEXT, count, (LPARAM)buf );
1432
1433 /* get it from the listbox */
1434
1435 if (!count || !buf) return 0;
1436 if( lphc->hWndLBox )
1437 {
1438 INT idx = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1439 if (idx == LB_ERR) goto error;
1440 length = SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
1441 if (length == LB_ERR) goto error;
1442
1443 /* 'length' is without the terminating character */
1444 if (length >= count)
1445 {
1446 LPSTR lpBuffer = HeapAlloc(GetProcessHeap(), 0, (length + 1) );
1447 if (!lpBuffer) goto error;
1448 length = SendMessageA(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)lpBuffer);
1449
1450 /* truncate if buffer is too short */
1451 if (length != LB_ERR)
1452 {
1453 lstrcpynA( buf, lpBuffer, count );
1454 length = count;
1455 }
1456 HeapFree( GetProcessHeap(), 0, lpBuffer );
1457 }
1458 else length = SendMessageA(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)buf);
1459
1460 if (length == LB_ERR) return 0;
1461 return length;
1462 }
1463
1464 error: /* error - truncate string, return zero */
1465 buf[0] = 0;
1466 return 0;
1467 }
1468
1469
1470 /***********************************************************************
1471 * CBResetPos
1472 *
1473 * This function sets window positions according to the updated
1474 * component placement struct.
1475 */
CBResetPos(LPHEADCOMBO lphc,const RECT * rectEdit,const RECT * rectLB,BOOL bRedraw)1476 static void CBResetPos(
1477 LPHEADCOMBO lphc,
1478 const RECT *rectEdit,
1479 const RECT *rectLB,
1480 BOOL bRedraw)
1481 {
1482 BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1483
1484 /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1485 * sizing messages */
1486
1487 if( lphc->wState & CBF_EDIT )
1488 SetWindowPos( lphc->hWndEdit, 0,
1489 rectEdit->left, rectEdit->top,
1490 rectEdit->right - rectEdit->left,
1491 rectEdit->bottom - rectEdit->top,
1492 SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1493
1494 SetWindowPos( lphc->hWndLBox, 0,
1495 rectLB->left, rectLB->top,
1496 rectLB->right - rectLB->left,
1497 rectLB->bottom - rectLB->top,
1498 SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1499
1500 if( bDrop )
1501 {
1502 if( lphc->wState & CBF_DROPPED )
1503 {
1504 lphc->wState &= ~CBF_DROPPED;
1505 ShowWindow( lphc->hWndLBox, SW_HIDE );
1506 }
1507
1508 if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1509 RedrawWindow( lphc->self, NULL, 0,
1510 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1511 }
1512 }
1513
1514
1515 /***********************************************************************
1516 * COMBO_Size
1517 */
COMBO_Size(LPHEADCOMBO lphc)1518 static void COMBO_Size( LPHEADCOMBO lphc )
1519 {
1520 /*
1521 * Those controls are always the same height. So we have to make sure
1522 * they are not resized to another value.
1523 */
1524 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
1525 {
1526 int newComboHeight, curComboHeight, curComboWidth;
1527 RECT rc;
1528
1529 GetWindowRect(lphc->self, &rc);
1530 curComboHeight = rc.bottom - rc.top;
1531 curComboWidth = rc.right - rc.left;
1532 newComboHeight = CBGetTextAreaHeight(lphc->self, lphc) + 2*COMBO_YBORDERSIZE();
1533
1534 /*
1535 * Resizing a combobox has another side effect, it resizes the dropped
1536 * rectangle as well. However, it does it only if the new height for the
1537 * combobox is more than the height it should have. In other words,
1538 * if the application resizing the combobox only had the intention to resize
1539 * the actual control, for example, to do the layout of a dialog that is
1540 * resized, the height of the dropdown is not changed.
1541 */
1542 if( curComboHeight > newComboHeight )
1543 {
1544 TRACE("oldComboHeight=%d, newComboHeight=%d, oldDropBottom=%d, oldDropTop=%d\n",
1545 curComboHeight, newComboHeight, lphc->droppedRect.bottom,
1546 lphc->droppedRect.top);
1547 lphc->droppedRect.bottom = lphc->droppedRect.top + curComboHeight - newComboHeight;
1548 }
1549 /*
1550 * Restore original height
1551 */
1552 if( curComboHeight != newComboHeight )
1553 SetWindowPos(lphc->self, 0, 0, 0, curComboWidth, newComboHeight,
1554 SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE|SWP_NOREDRAW);
1555 }
1556
1557 CBCalcPlacement(lphc->self,
1558 lphc,
1559 &lphc->textRect,
1560 &lphc->buttonRect,
1561 &lphc->droppedRect);
1562
1563 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, FALSE );
1564 }
1565
1566
1567 /***********************************************************************
1568 * COMBO_Font
1569 */
COMBO_Font(LPHEADCOMBO lphc,HFONT hFont,BOOL bRedraw)1570 static void COMBO_Font( LPHEADCOMBO lphc, HFONT hFont, BOOL bRedraw )
1571 {
1572 /*
1573 * Set the font
1574 */
1575 lphc->hFont = hFont;
1576
1577 /*
1578 * Propagate to owned windows.
1579 */
1580 if( lphc->wState & CBF_EDIT )
1581 SendMessageW(lphc->hWndEdit, WM_SETFONT, (WPARAM)hFont, bRedraw);
1582 SendMessageW(lphc->hWndLBox, WM_SETFONT, (WPARAM)hFont, bRedraw);
1583
1584 /*
1585 * Redo the layout of the control.
1586 */
1587 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1588 {
1589 CBCalcPlacement(lphc->self,
1590 lphc,
1591 &lphc->textRect,
1592 &lphc->buttonRect,
1593 &lphc->droppedRect);
1594
1595 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1596 }
1597 else
1598 {
1599 CBForceDummyResize(lphc);
1600 }
1601 }
1602
1603
1604 /***********************************************************************
1605 * COMBO_SetItemHeight
1606 */
COMBO_SetItemHeight(LPHEADCOMBO lphc,INT index,INT height)1607 static LRESULT COMBO_SetItemHeight( LPHEADCOMBO lphc, INT index, INT height )
1608 {
1609 LRESULT lRet = CB_ERR;
1610
1611 if( index == -1 ) /* set text field height */
1612 {
1613 if( height < 32768 )
1614 {
1615 lphc->editHeight = height + 2; /* Is the 2 for 2*EDIT_CONTROL_PADDING? */
1616
1617 /*
1618 * Redo the layout of the control.
1619 */
1620 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1621 {
1622 CBCalcPlacement(lphc->self,
1623 lphc,
1624 &lphc->textRect,
1625 &lphc->buttonRect,
1626 &lphc->droppedRect);
1627
1628 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1629 }
1630 else
1631 {
1632 CBForceDummyResize(lphc);
1633 }
1634
1635 lRet = height;
1636 }
1637 }
1638 else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
1639 lRet = SendMessageW(lphc->hWndLBox, LB_SETITEMHEIGHT, (WPARAM)index, (LPARAM)height);
1640 return lRet;
1641 }
1642
1643 /***********************************************************************
1644 * COMBO_SelectString
1645 */
COMBO_SelectString(LPHEADCOMBO lphc,INT start,LPARAM pText,BOOL unicode)1646 static LRESULT COMBO_SelectString( LPHEADCOMBO lphc, INT start, LPARAM pText, BOOL unicode )
1647 {
1648 INT index = unicode ? SendMessageW(lphc->hWndLBox, LB_SELECTSTRING, (WPARAM)start, pText) :
1649 SendMessageA(lphc->hWndLBox, LB_SELECTSTRING, (WPARAM)start, pText);
1650 if( index >= 0 )
1651 {
1652 if( lphc->wState & CBF_EDIT )
1653 CBUpdateEdit( lphc, index );
1654 else
1655 {
1656 InvalidateRect(lphc->self, &lphc->textRect, TRUE);
1657 }
1658 }
1659 return (LRESULT)index;
1660 }
1661
1662 /***********************************************************************
1663 * COMBO_LButtonDown
1664 */
COMBO_LButtonDown(LPHEADCOMBO lphc,LPARAM lParam)1665 static void COMBO_LButtonDown( LPHEADCOMBO lphc, LPARAM lParam )
1666 {
1667 POINT pt;
1668 BOOL bButton;
1669 HWND hWnd = lphc->self;
1670
1671 pt.x = (short)LOWORD(lParam);
1672 pt.y = (short)HIWORD(lParam);
1673 bButton = PtInRect(&lphc->buttonRect, pt);
1674
1675 if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1676 (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1677 {
1678 lphc->wState |= CBF_BUTTONDOWN;
1679 if( lphc->wState & CBF_DROPPED )
1680 {
1681 /* got a click to cancel selection */
1682
1683 lphc->wState &= ~CBF_BUTTONDOWN;
1684 CBRollUp( lphc, TRUE, FALSE );
1685 if( !IsWindow( hWnd ) ) return;
1686
1687 if( lphc->wState & CBF_CAPTURE )
1688 {
1689 lphc->wState &= ~CBF_CAPTURE;
1690 ReleaseCapture();
1691 }
1692 }
1693 else
1694 {
1695 /* drop down the listbox and start tracking */
1696
1697 lphc->wState |= CBF_CAPTURE;
1698 SetCapture( hWnd );
1699 CBDropDown( lphc );
1700 }
1701 if( bButton ) CBRepaintButton( lphc );
1702 }
1703 }
1704
1705 /***********************************************************************
1706 * COMBO_LButtonUp
1707 *
1708 * Release capture and stop tracking if needed.
1709 */
COMBO_LButtonUp(LPHEADCOMBO lphc)1710 static void COMBO_LButtonUp( LPHEADCOMBO lphc )
1711 {
1712 if( lphc->wState & CBF_CAPTURE )
1713 {
1714 lphc->wState &= ~CBF_CAPTURE;
1715 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1716 {
1717 INT index = CBUpdateLBox( lphc, TRUE );
1718 /* Update edit only if item is in the list */
1719 if(index >= 0)
1720 {
1721 lphc->wState |= CBF_NOLBSELECT;
1722 CBUpdateEdit( lphc, index );
1723 lphc->wState &= ~CBF_NOLBSELECT;
1724 }
1725 }
1726 ReleaseCapture();
1727 SetCapture(lphc->hWndLBox);
1728 }
1729
1730 if( lphc->wState & CBF_BUTTONDOWN )
1731 {
1732 lphc->wState &= ~CBF_BUTTONDOWN;
1733 CBRepaintButton( lphc );
1734 }
1735 }
1736
1737 /***********************************************************************
1738 * COMBO_MouseMove
1739 *
1740 * Two things to do - track combo button and release capture when
1741 * pointer goes into the listbox.
1742 */
COMBO_MouseMove(LPHEADCOMBO lphc,WPARAM wParam,LPARAM lParam)1743 static void COMBO_MouseMove( LPHEADCOMBO lphc, WPARAM wParam, LPARAM lParam )
1744 {
1745 POINT pt;
1746 RECT lbRect;
1747
1748 pt.x = (short)LOWORD(lParam);
1749 pt.y = (short)HIWORD(lParam);
1750
1751 if( lphc->wState & CBF_BUTTONDOWN )
1752 {
1753 BOOL bButton;
1754
1755 bButton = PtInRect(&lphc->buttonRect, pt);
1756
1757 if( !bButton )
1758 {
1759 lphc->wState &= ~CBF_BUTTONDOWN;
1760 CBRepaintButton( lphc );
1761 }
1762 }
1763
1764 GetClientRect( lphc->hWndLBox, &lbRect );
1765 MapWindowPoints( lphc->self, lphc->hWndLBox, &pt, 1 );
1766 if( PtInRect(&lbRect, pt) )
1767 {
1768 lphc->wState &= ~CBF_CAPTURE;
1769 ReleaseCapture();
1770 if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc, TRUE );
1771
1772 /* hand over pointer tracking */
1773 SendMessageW(lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam);
1774 }
1775 }
1776
COMBO_GetComboBoxInfo(const HEADCOMBO * lphc,COMBOBOXINFO * pcbi)1777 static LRESULT COMBO_GetComboBoxInfo(const HEADCOMBO *lphc, COMBOBOXINFO *pcbi)
1778 {
1779 if (!pcbi || (pcbi->cbSize < sizeof(COMBOBOXINFO)))
1780 return FALSE;
1781
1782 pcbi->rcItem = lphc->textRect;
1783 pcbi->rcButton = lphc->buttonRect;
1784 pcbi->stateButton = 0;
1785 if (lphc->wState & CBF_BUTTONDOWN)
1786 pcbi->stateButton |= STATE_SYSTEM_PRESSED;
1787 if (IsRectEmpty(&lphc->buttonRect))
1788 pcbi->stateButton |= STATE_SYSTEM_INVISIBLE;
1789 pcbi->hwndCombo = lphc->self;
1790 pcbi->hwndItem = lphc->hWndEdit;
1791 pcbi->hwndList = lphc->hWndLBox;
1792 return TRUE;
1793 }
1794
strdupA(LPCSTR str)1795 static char *strdupA(LPCSTR str)
1796 {
1797 char *ret;
1798 DWORD len;
1799
1800 if(!str) return NULL;
1801
1802 len = strlen(str);
1803 ret = HeapAlloc(GetProcessHeap(), 0, len + 1);
1804 #ifdef __REACTOS__
1805 if (ret != NULL)
1806 #endif
1807 memcpy(ret, str, len + 1);
1808 return ret;
1809 }
1810
1811 /***********************************************************************
1812 * ComboWndProc_common
1813 */
ComboWndProc_common(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam,BOOL unicode)1814 LRESULT WINAPI ComboWndProc_common( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, BOOL unicode )
1815 {
1816 LPHEADCOMBO lphc = (LPHEADCOMBO)GetWindowLongPtrW( hwnd, 0 );
1817 #ifdef __REACTOS__
1818 PWND pWnd;
1819
1820 pWnd = ValidateHwnd(hwnd);
1821 if (pWnd)
1822 {
1823 if (!pWnd->fnid)
1824 {
1825 NtUserSetWindowFNID(hwnd, FNID_COMBOBOX);
1826 }
1827 else
1828 {
1829 if (pWnd->fnid != FNID_COMBOBOX)
1830 {
1831 ERR("Wrong window class for ComboBox! fnId 0x%x\n",pWnd->fnid);
1832 return 0;
1833 }
1834 }
1835 }
1836 #endif
1837
1838 TRACE("[%p]: msg %s wp %08lx lp %08lx\n", hwnd, SPY_GetMsgName(message, hwnd), wParam, lParam);
1839
1840 #ifndef __REACTOS__
1841 if (!IsWindow(hwnd)) return 0;
1842 #endif
1843
1844 if (lphc || message == WM_NCCREATE)
1845 switch(message)
1846 {
1847 case WM_NCCREATE:
1848 {
1849 LONG style = unicode ? ((LPCREATESTRUCTW)lParam)->style : ((LPCREATESTRUCTA)lParam)->style;
1850 return COMBO_NCCreate(hwnd, style);
1851 }
1852 case WM_NCDESTROY:
1853 COMBO_NCDestroy(lphc);
1854 #ifdef __REACTOS__
1855 NtUserSetWindowFNID(hwnd, FNID_DESTROY);
1856 #endif
1857 break;/* -> DefWindowProc */
1858
1859 case WM_CREATE:
1860 {
1861 HWND hwndParent;
1862 LONG style;
1863 if(unicode)
1864 {
1865 hwndParent = ((LPCREATESTRUCTW)lParam)->hwndParent;
1866 style = ((LPCREATESTRUCTW)lParam)->style;
1867 }
1868 else
1869 {
1870 hwndParent = ((LPCREATESTRUCTA)lParam)->hwndParent;
1871 style = ((LPCREATESTRUCTA)lParam)->style;
1872 }
1873 return COMBO_Create(hwnd, lphc, hwndParent, style, unicode);
1874 }
1875 case WM_PRINTCLIENT:
1876 /* Fallthrough */
1877 case WM_PAINT:
1878 /* wParam may contain a valid HDC! */
1879 return COMBO_Paint(lphc, (HDC)wParam);
1880 case WM_ERASEBKGND:
1881 /* do all painting in WM_PAINT like Windows does */
1882 return 1;
1883
1884 case WM_GETDLGCODE:
1885 {
1886 LRESULT result = DLGC_WANTARROWS | DLGC_WANTCHARS;
1887 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
1888 {
1889 int vk = (int)((LPMSG)lParam)->wParam;
1890
1891 if ((vk == VK_RETURN || vk == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
1892 result |= DLGC_WANTMESSAGE;
1893 }
1894 return result;
1895 }
1896 case WM_SIZE:
1897 if (lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
1898 COMBO_Size( lphc );
1899 return TRUE;
1900 case WM_SETFONT:
1901 COMBO_Font( lphc, (HFONT)wParam, (BOOL)lParam );
1902 return TRUE;
1903 case WM_GETFONT:
1904 return (LRESULT)lphc->hFont;
1905 case WM_SETFOCUS:
1906 if (lphc->wState & CBF_EDIT)
1907 {
1908 SetFocus( lphc->hWndEdit );
1909 /* The first time focus is received, select all the text */
1910 if (!(lphc->wState & CBF_BEENFOCUSED))
1911 {
1912 SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, -1);
1913 lphc->wState |= CBF_BEENFOCUSED;
1914 }
1915 }
1916 else
1917 COMBO_SetFocus( lphc );
1918 return TRUE;
1919 case WM_KILLFOCUS:
1920 {
1921 HWND hwndFocus = WIN_GetFullHandle((HWND)wParam);
1922 if (!hwndFocus || (hwndFocus != lphc->hWndEdit && hwndFocus != lphc->hWndLBox))
1923 COMBO_KillFocus( lphc );
1924 return TRUE;
1925 }
1926 case WM_COMMAND:
1927 return COMBO_Command( lphc, wParam, WIN_GetFullHandle((HWND)lParam) );
1928 case WM_GETTEXT:
1929 return unicode ? COMBO_GetTextW( lphc, wParam, (LPWSTR)lParam )
1930 : COMBO_GetTextA( lphc, wParam, (LPSTR)lParam );
1931 case WM_SETTEXT:
1932 case WM_GETTEXTLENGTH:
1933 case WM_CLEAR:
1934 if ((message == WM_GETTEXTLENGTH) && !ISWIN31 && !(lphc->wState & CBF_EDIT))
1935 {
1936 int j = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1937 if (j == -1) return 0;
1938 return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, j, 0) :
1939 SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, j, 0);
1940 }
1941 else if ( lphc->wState & CBF_EDIT )
1942 {
1943 LRESULT ret;
1944 lphc->wState |= CBF_NOEDITNOTIFY;
1945 ret = unicode ? SendMessageW(lphc->hWndEdit, message, wParam, lParam) :
1946 SendMessageA(lphc->hWndEdit, message, wParam, lParam);
1947 lphc->wState &= ~CBF_NOEDITNOTIFY;
1948 return ret;
1949 }
1950 else
1951 return CB_ERR;
1952 case WM_CUT:
1953 case WM_PASTE:
1954 case WM_COPY:
1955 if (lphc->wState & CBF_EDIT)
1956 {
1957 return unicode ? SendMessageW(lphc->hWndEdit, message, wParam, lParam) :
1958 SendMessageA(lphc->hWndEdit, message, wParam, lParam);
1959 }
1960 else return CB_ERR;
1961
1962 case WM_DRAWITEM:
1963 case WM_DELETEITEM:
1964 case WM_COMPAREITEM:
1965 case WM_MEASUREITEM:
1966 return COMBO_ItemOp(lphc, message, lParam);
1967 case WM_ENABLE:
1968 if (lphc->wState & CBF_EDIT)
1969 EnableWindow( lphc->hWndEdit, (BOOL)wParam );
1970 EnableWindow( lphc->hWndLBox, (BOOL)wParam );
1971
1972 /* Force the control to repaint when the enabled state changes. */
1973 InvalidateRect(lphc->self, NULL, TRUE);
1974 return TRUE;
1975 case WM_SETREDRAW:
1976 if (wParam)
1977 lphc->wState &= ~CBF_NOREDRAW;
1978 else
1979 lphc->wState |= CBF_NOREDRAW;
1980
1981 if ( lphc->wState & CBF_EDIT )
1982 SendMessageW(lphc->hWndEdit, message, wParam, lParam);
1983 SendMessageW(lphc->hWndLBox, message, wParam, lParam);
1984 return 0;
1985 case WM_SYSKEYDOWN:
1986 #ifdef __REACTOS__
1987 if ( KF_ALTDOWN & HIWORD(lParam) )
1988 #else
1989 if ( KEYDATA_ALT & HIWORD(lParam) )
1990 #endif
1991 if( wParam == VK_UP || wParam == VK_DOWN )
1992 #ifdef __REACTOS__
1993 {
1994 #endif
1995 COMBO_FlipListbox( lphc, FALSE, FALSE );
1996 return 0;
1997 #ifdef __REACTOS__
1998 }
1999 break;
2000 #endif
2001
2002 case WM_KEYDOWN:
2003 if ((wParam == VK_RETURN || wParam == VK_ESCAPE) &&
2004 (lphc->wState & CBF_DROPPED))
2005 {
2006 CBRollUp( lphc, wParam == VK_RETURN, FALSE );
2007 return TRUE;
2008 }
2009 else if ((wParam == VK_F4) && !(lphc->wState & CBF_EUI))
2010 {
2011 COMBO_FlipListbox( lphc, FALSE, FALSE );
2012 return TRUE;
2013 }
2014 /* fall through */
2015 case WM_CHAR:
2016 case WM_IME_CHAR:
2017 {
2018 HWND hwndTarget;
2019
2020 #ifdef __REACTOS__
2021 if (lphc->wState & CBF_DROPPED)
2022 lphc->wState |= CBF_NOROLLUP;
2023 #endif
2024 if ( lphc->wState & CBF_EDIT )
2025 hwndTarget = lphc->hWndEdit;
2026 else
2027 hwndTarget = lphc->hWndLBox;
2028
2029 return unicode ? SendMessageW(hwndTarget, message, wParam, lParam) :
2030 SendMessageA(hwndTarget, message, wParam, lParam);
2031 }
2032 case WM_LBUTTONDOWN:
2033 if ( !(lphc->wState & CBF_FOCUSED) ) SetFocus( lphc->self );
2034 if ( lphc->wState & CBF_FOCUSED ) COMBO_LButtonDown( lphc, lParam );
2035 return TRUE;
2036 case WM_LBUTTONUP:
2037 COMBO_LButtonUp( lphc );
2038 return TRUE;
2039 case WM_MOUSEMOVE:
2040 if ( lphc->wState & CBF_CAPTURE )
2041 COMBO_MouseMove( lphc, wParam, lParam );
2042 return TRUE;
2043
2044 case WM_MOUSEWHEEL:
2045 if (wParam & (MK_SHIFT | MK_CONTROL))
2046 return unicode ? DefWindowProcW(hwnd, message, wParam, lParam) :
2047 DefWindowProcA(hwnd, message, wParam, lParam);
2048
2049 if (GET_WHEEL_DELTA_WPARAM(wParam) > 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_UP, 0);
2050 if (GET_WHEEL_DELTA_WPARAM(wParam) < 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_DOWN, 0);
2051 return TRUE;
2052
2053 case WM_CTLCOLOR:
2054 case WM_CTLCOLORMSGBOX:
2055 case WM_CTLCOLOREDIT:
2056 case WM_CTLCOLORLISTBOX:
2057 case WM_CTLCOLORBTN:
2058 case WM_CTLCOLORDLG:
2059 case WM_CTLCOLORSCROLLBAR:
2060 case WM_CTLCOLORSTATIC:
2061 #ifdef __REACTOS__
2062 if (pWnd && !(pWnd->state2 & WNDS2_WIN40COMPAT)) break; // Must be Win 4.0 and above.
2063 #endif
2064 if (lphc->owner)
2065 return SendMessageW(lphc->owner, message, wParam, lParam);
2066 break;
2067
2068 /* Combo messages */
2069 case CB_ADDSTRING:
2070 if (unicode)
2071 {
2072 if (lphc->dwStyle & CBS_LOWERCASE)
2073 CharLowerW((LPWSTR)lParam);
2074 else if (lphc->dwStyle & CBS_UPPERCASE)
2075 CharUpperW((LPWSTR)lParam);
2076 return SendMessageW(lphc->hWndLBox, LB_ADDSTRING, 0, lParam);
2077 }
2078 else /* unlike the unicode version, the ansi version does not overwrite
2079 the string if converting case */
2080 {
2081 char *string = NULL;
2082 LRESULT ret;
2083 if (lphc->dwStyle & CBS_LOWERCASE)
2084 {
2085 string = strdupA((LPSTR)lParam);
2086 CharLowerA(string);
2087 }
2088
2089 else if (lphc->dwStyle & CBS_UPPERCASE)
2090 {
2091 string = strdupA((LPSTR)lParam);
2092 CharUpperA(string);
2093 }
2094
2095 ret = SendMessageA(lphc->hWndLBox, LB_ADDSTRING, 0, string ? (LPARAM)string : lParam);
2096 HeapFree(GetProcessHeap(), 0, string);
2097 return ret;
2098 }
2099 case CB_INSERTSTRING:
2100 if (unicode)
2101 {
2102 if (lphc->dwStyle & CBS_LOWERCASE)
2103 CharLowerW((LPWSTR)lParam);
2104 else if (lphc->dwStyle & CBS_UPPERCASE)
2105 CharUpperW((LPWSTR)lParam);
2106 return SendMessageW(lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
2107 }
2108 else
2109 {
2110 if (lphc->dwStyle & CBS_LOWERCASE)
2111 CharLowerA((LPSTR)lParam);
2112 else if (lphc->dwStyle & CBS_UPPERCASE)
2113 CharUpperA((LPSTR)lParam);
2114 return SendMessageA(lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
2115 }
2116 case CB_DELETESTRING:
2117 return unicode ? SendMessageW(lphc->hWndLBox, LB_DELETESTRING, wParam, 0) :
2118 SendMessageA(lphc->hWndLBox, LB_DELETESTRING, wParam, 0);
2119 case CB_SELECTSTRING:
2120 return COMBO_SelectString(lphc, (INT)wParam, lParam, unicode);
2121 case CB_FINDSTRING:
2122 return unicode ? SendMessageW(lphc->hWndLBox, LB_FINDSTRING, wParam, lParam) :
2123 SendMessageA(lphc->hWndLBox, LB_FINDSTRING, wParam, lParam);
2124 case CB_FINDSTRINGEXACT:
2125 return unicode ? SendMessageW(lphc->hWndLBox, LB_FINDSTRINGEXACT, wParam, lParam) :
2126 SendMessageA(lphc->hWndLBox, LB_FINDSTRINGEXACT, wParam, lParam);
2127 case CB_SETITEMHEIGHT:
2128 return COMBO_SetItemHeight( lphc, (INT)wParam, (INT)lParam);
2129 case CB_GETITEMHEIGHT:
2130 if ((INT)wParam >= 0) /* listbox item */
2131 return SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
2132 return CBGetTextAreaHeight(hwnd, lphc);
2133 case CB_RESETCONTENT:
2134 SendMessageW(lphc->hWndLBox, LB_RESETCONTENT, 0, 0);
2135 if ((lphc->wState & CBF_EDIT) && CB_HASSTRINGS(lphc))
2136 {
2137 static const WCHAR empty_stringW[] = { 0 };
2138 SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, (LPARAM)empty_stringW);
2139 }
2140 else
2141 InvalidateRect(lphc->self, NULL, TRUE);
2142 return TRUE;
2143 case CB_INITSTORAGE:
2144 return SendMessageW(lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
2145 case CB_GETHORIZONTALEXTENT:
2146 return SendMessageW(lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
2147 case CB_SETHORIZONTALEXTENT:
2148 return SendMessageW(lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
2149 case CB_GETTOPINDEX:
2150 return SendMessageW(lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
2151 case CB_GETLOCALE:
2152 return SendMessageW(lphc->hWndLBox, LB_GETLOCALE, 0, 0);
2153 case CB_SETLOCALE:
2154 return SendMessageW(lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
2155 case CB_SETDROPPEDWIDTH:
2156 if ((CB_GETTYPE(lphc) == CBS_SIMPLE) || (INT)wParam >= 32768)
2157 return CB_ERR;
2158 /* new value must be higher than combobox width */
2159 if ((INT)wParam >= lphc->droppedRect.right - lphc->droppedRect.left)
2160 lphc->droppedWidth = wParam;
2161 else if (wParam)
2162 lphc->droppedWidth = 0;
2163
2164 /* recalculate the combobox area */
2165 CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
2166
2167 /* fall through */
2168 case CB_GETDROPPEDWIDTH:
2169 if (lphc->droppedWidth)
2170 return lphc->droppedWidth;
2171 return lphc->droppedRect.right - lphc->droppedRect.left;
2172 case CB_GETDROPPEDCONTROLRECT:
2173 if (lParam) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
2174 return CB_OKAY;
2175 case CB_GETDROPPEDSTATE:
2176 return (lphc->wState & CBF_DROPPED) != 0;
2177 case CB_DIR:
2178 return unicode ? SendMessageW(lphc->hWndLBox, LB_DIR, wParam, lParam) :
2179 SendMessageA(lphc->hWndLBox, LB_DIR, wParam, lParam);
2180
2181 case CB_SHOWDROPDOWN:
2182 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
2183 {
2184 if (wParam)
2185 {
2186 if (!(lphc->wState & CBF_DROPPED))
2187 CBDropDown( lphc );
2188 }
2189 else if (lphc->wState & CBF_DROPPED)
2190 CBRollUp( lphc, FALSE, TRUE );
2191 }
2192 return TRUE;
2193 case CB_GETCOUNT:
2194 return SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
2195 case CB_GETCURSEL:
2196 return SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
2197 case CB_SETCURSEL:
2198 lParam = SendMessageW(lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
2199 if (lParam >= 0)
2200 SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
2201
2202 /* no LBN_SELCHANGE in this case, update manually */
2203 CBPaintText(lphc, NULL);
2204 lphc->wState &= ~CBF_SELCHANGE;
2205 return lParam;
2206 case CB_GETLBTEXT:
2207 return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXT, wParam, lParam) :
2208 SendMessageA(lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
2209 case CB_GETLBTEXTLEN:
2210 return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0) :
2211 SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
2212 case CB_GETITEMDATA:
2213 return SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
2214 case CB_SETITEMDATA:
2215 return SendMessageW(lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
2216 case CB_GETEDITSEL:
2217 /* Edit checks passed parameters itself */
2218 if (lphc->wState & CBF_EDIT)
2219 return SendMessageW(lphc->hWndEdit, EM_GETSEL, wParam, lParam);
2220 return CB_ERR;
2221 case CB_SETEDITSEL:
2222 if (lphc->wState & CBF_EDIT)
2223 return SendMessageW(lphc->hWndEdit, EM_SETSEL, (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
2224 return CB_ERR;
2225 case CB_SETEXTENDEDUI:
2226 if (CB_GETTYPE(lphc) == CBS_SIMPLE )
2227 return CB_ERR;
2228 if (wParam)
2229 lphc->wState |= CBF_EUI;
2230 else lphc->wState &= ~CBF_EUI;
2231 return CB_OKAY;
2232 case CB_GETEXTENDEDUI:
2233 return (lphc->wState & CBF_EUI) != 0;
2234 case CB_GETCOMBOBOXINFO:
2235 return COMBO_GetComboBoxInfo(lphc, (COMBOBOXINFO *)lParam);
2236 case CB_LIMITTEXT:
2237 if (lphc->wState & CBF_EDIT)
2238 return SendMessageW(lphc->hWndEdit, EM_LIMITTEXT, wParam, lParam);
2239 return TRUE;
2240
2241 #ifdef __REACTOS__
2242 case WM_UPDATEUISTATE:
2243 if (unicode)
2244 DefWindowProcW(lphc->self, message, wParam, lParam);
2245 else
2246 DefWindowProcA(lphc->self, message, wParam, lParam);
2247
2248 if (COMBO_update_uistate(lphc))
2249 {
2250 /* redraw text */
2251 if (!(lphc->wState & CBF_EDIT))
2252 NtUserInvalidateRect(lphc->self, &lphc->textRect, TRUE);
2253 }
2254 break;
2255
2256 case WM_CBLOSTTEXTFOCUS: /* undocumented message - deselects the text when focus is lost */
2257 if (lphc->hWndEdit != NULL)
2258 {
2259 SendMessage(lphc->self, WM_LBUTTONUP, 0, 0xFFFFFFFF);
2260 SendMessage(lphc->hWndEdit, EM_SETSEL, 0, 0);
2261 lphc->wState &= ~(CBF_FOCUSED | CBF_BEENFOCUSED);
2262 CB_NOTIFY(lphc, CBN_KILLFOCUS);
2263 }
2264 return TRUE;
2265 #endif
2266
2267 default:
2268 if (message >= WM_USER)
2269 WARN("unknown msg WM_USER+%04x wp=%04lx lp=%08lx\n", message - WM_USER, wParam, lParam );
2270 break;
2271 }
2272 return unicode ? DefWindowProcW(hwnd, message, wParam, lParam) :
2273 DefWindowProcA(hwnd, message, wParam, lParam);
2274 }
2275
2276 #ifdef __REACTOS__
2277
2278 /***********************************************************************
2279 * ComboWndProcA
2280 *
2281 * This is just a wrapper for the real ComboWndProc which locks/unlocks
2282 * window structs.
2283 */
ComboWndProcA(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)2284 LRESULT WINAPI ComboWndProcA(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
2285 {
2286 if (!IsWindow(hwnd)) return 0;
2287 return ComboWndProc_common(hwnd, message, wParam, lParam, FALSE);
2288 }
2289
2290 /***********************************************************************
2291 * ComboWndProcW
2292 */
ComboWndProcW(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)2293 LRESULT WINAPI ComboWndProcW(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
2294 {
2295 if (!IsWindow(hwnd)) return 0;
2296 return ComboWndProc_common(hwnd, message, wParam, lParam, TRUE);
2297 }
2298
2299 #endif /* __REACTOS__ */
2300
2301 /*************************************************************************
2302 * GetComboBoxInfo (USER32.@)
2303 */
GetComboBoxInfo(HWND hwndCombo,PCOMBOBOXINFO pcbi)2304 BOOL WINAPI GetComboBoxInfo(
2305 HWND hwndCombo, /* [in] handle to combo box */
2306 PCOMBOBOXINFO pcbi /* [in/out] combo box information */)
2307 {
2308 TRACE("(%p, %p)\n", hwndCombo, pcbi);
2309 #ifdef __REACTOS__
2310 return NtUserGetComboBoxInfo(hwndCombo, pcbi);
2311 #else
2312 return SendMessageW(hwndCombo, CB_GETCOMBOBOXINFO, 0, (LPARAM)pcbi);
2313 #endif
2314 }
2315