source: trunk/src/user32/combo.cpp@ 2266

Last change on this file since 2266 was 2214, checked in by sandervl, 26 years ago

VT's codepage changes + combo bugfixes
File size: 64.4 KB
Line 
1/* $Id: combo.cpp,v 1.21 1999-12-27 18:43:41 sandervl Exp $ */
2/*
3 * Combo controls
4 *
5 * Copyright 1997 Alex Korobka
6 * Copyright 1999 Christoph Bratschi
7 *
8 * FIXME: roll up in Netscape 3.01.
9 *
10 * WINE version: 991212
11 *
12 * Status: in progress
13 * Version: ?.??
14 */
15
16/* CB: bugs
17 - problems with focus handling (Win32 <-> OS/2)
18 will be fixed soon
19 - several other bugs
20*/
21
22#include <string.h>
23#include <os2win.h>
24#include "controls.h"
25#include "combo.h"
26#include "initterm.h"
27
28#ifdef DEBUG
29char *GetMsgText(int Msg);
30#endif
31
32 /* bits in the dwKeyData */
33#define KEYDATA_ALT 0x2000
34#define KEYDATA_PREVSTATE 0x4000
35
36/*
37 * Additional combo box definitions
38 */
39
40#define CB_NOTIFY( lphc, code ) \
41 (SendMessageA( (lphc)->owner, WM_COMMAND, \
42 MAKEWPARAM(GetWindowLongA((lphc)->hwndself,GWL_ID), (code)), (lphc)->hwndself))
43#define CB_GETEDITTEXTLENGTH( lphc ) \
44 (SendMessageA( (lphc)->hWndEdit, WM_GETTEXTLENGTH, 0, 0 ))
45
46/*
47 * Look and feel dependant "constants"
48 */
49#define COMBO_YBORDERGAP 5
50#define COMBO_XBORDERSIZE() ( 2 )
51#define COMBO_YBORDERSIZE() ( 2 )
52#define COMBO_EDITBUTTONSPACE() ( 0 )
53#define EDIT_CONTROL_PADDING() ( 1 )
54
55/***********************************************************************
56 * COMBO_NCCreate
57 */
58static LRESULT COMBO_NCCreate(HWND hwnd,WPARAM wParam,LPARAM lParam)
59{
60 LPHEADCOMBO lphc;
61
62 if ( hwnd &&
63 (lphc = (LPHEADCOMBO)HeapAlloc(GetProcessHeap(), 0, sizeof(HEADCOMBO))) )
64 {
65 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
66 DWORD dwStyle = GetWindowLongA(hwnd,GWL_STYLE);
67 DWORD dwExStyle = GetWindowLongA(hwnd,GWL_EXSTYLE);
68
69 memset( lphc, 0, sizeof(HEADCOMBO) );
70 SetInfoPtr(hwnd,(DWORD)lphc);
71
72 /* some braindead apps do try to use scrollbar/border flags */
73
74 lphc->dwStyle = (lpcs->style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL));
75 dwStyle &= ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
76 SetWindowLongA(hwnd,GWL_STYLE,dwStyle);
77
78 /*
79 * We also have to remove the client edge style to make sure
80 * we don't end-up with a non client area.
81 */
82 dwExStyle &= ~(WS_EX_CLIENTEDGE);
83 SetWindowLongA(hwnd,GWL_EXSTYLE,dwExStyle);
84
85 if( !(lpcs->style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
86 lphc->dwStyle |= CBS_HASSTRINGS;
87 if( !(dwExStyle & WS_EX_NOPARENTNOTIFY) )
88 lphc->wState |= CBF_NOTIFY;
89
90 //TRACE("[0x%08x], style = %08x\n",
91 // (UINT)lphc, lphc->dwStyle );
92
93 return TRUE;
94 }
95 return FALSE;
96}
97
98/***********************************************************************
99 * COMBO_NCDestroy
100 */
101static LRESULT COMBO_NCDestroy(HWND hwnd,WPARAM wParam,LPARAM lParam)
102{
103 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
104
105 if( lphc )
106 {
107 //TRACE("[%04x]: freeing storage\n", CB_HWND(lphc));
108
109 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
110 DestroyWindow( lphc->hWndLBox );
111
112 HeapFree( GetProcessHeap(), 0, lphc );
113 SetInfoPtr(hwnd,0);
114 }
115
116 return DefWindowProcA(hwnd,WM_NCDESTROY,wParam,lParam);
117}
118
119/***********************************************************************
120 * CBGetTextAreaHeight
121 *
122 * This method will calculate the height of the text area of the
123 * combobox.
124 * The height of the text area is set in two ways.
125 * It can be set explicitely through a combobox message of through a
126 * WM_MEASUREITEM callback.
127 * If this is not the case, the height is set to 13 dialog units.
128 * This height was determined through experimentation.
129 */
130static INT CBGetTextAreaHeight(
131 HWND hwnd,
132 LPHEADCOMBO lphc)
133{
134 INT iTextItemHeight;
135
136 if( lphc->editHeight ) /* explicitly set height */
137 {
138 iTextItemHeight = lphc->editHeight;
139 }
140 else
141 {
142 TEXTMETRICA tm;
143 HDC hDC = GetDC(hwnd);
144 HFONT hPrevFont = 0;
145 INT baseUnitY;
146
147 if (lphc->hFont)
148 hPrevFont = SelectObject( hDC, lphc->hFont );
149
150 GetTextMetricsA(hDC, &tm);
151
152 baseUnitY = tm.tmHeight;
153
154 if( hPrevFont )
155 SelectObject( hDC, hPrevFont );
156
157 ReleaseDC(hwnd, hDC);
158
159 iTextItemHeight = ((13 * baseUnitY) / 8);
160
161 /*
162 * This "formula" calculates the height of the complete control.
163 * To calculate the height of the text area, we have to remove the
164 * borders.
165 */
166 iTextItemHeight -= 2*COMBO_YBORDERSIZE();
167 }
168
169 /*
170 * Check the ownerdraw case if we haven't asked the parent the size
171 * of the item yet.
172 */
173 if ( CB_OWNERDRAWN(lphc) &&
174 (lphc->wState & CBF_MEASUREITEM) )
175 {
176 MEASUREITEMSTRUCT measureItem;
177 RECT clientRect;
178 INT originalItemHeight = iTextItemHeight;
179
180 /*
181 * We use the client rect for the width of the item.
182 */
183 GetClientRect(hwnd, &clientRect);
184
185 lphc->wState &= ~CBF_MEASUREITEM;
186
187 /*
188 * Send a first one to measure the size of the text area
189 */
190 measureItem.CtlType = ODT_COMBOBOX;
191 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
192 measureItem.itemID = -1;
193 measureItem.itemWidth = clientRect.right;
194 measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
195 measureItem.itemData = 0;
196 SendMessageA(lphc->owner, WM_MEASUREITEM,
197 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
198 iTextItemHeight = 6 + measureItem.itemHeight;
199
200 /*
201 * Send a second one in the case of a fixed ownerdraw list to calculate the
202 * size of the list items. (we basically do this on behalf of the listbox)
203 */
204 if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
205 {
206 measureItem.CtlType = ODT_COMBOBOX;
207 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
208 measureItem.itemID = 0;
209 measureItem.itemWidth = clientRect.right;
210 measureItem.itemHeight = originalItemHeight;
211 measureItem.itemData = 0;
212 SendMessageA(lphc->owner, WM_MEASUREITEM,
213 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
214 lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
215 }
216
217 /*
218 * Keep the size for the next time
219 */
220 lphc->editHeight = iTextItemHeight;
221 }
222
223 return iTextItemHeight;
224}
225
226/***********************************************************************
227 * CBForceDummyResize
228 *
229 * The dummy resize is used for listboxes that have a popup to trigger
230 * a re-arranging of the contents of the combobox and the recalculation
231 * of the size of the "real" control window.
232 */
233static void CBForceDummyResize(
234 LPHEADCOMBO lphc)
235{
236 RECT windowRect;
237 int newComboHeight;
238
239 newComboHeight = CBGetTextAreaHeight(CB_HWND(lphc),lphc) + 2*COMBO_YBORDERSIZE();
240
241 GetWindowRect(CB_HWND(lphc), &windowRect);
242
243 /*
244 * We have to be careful, resizing a combobox also has the meaning that the
245 * dropped rect will be resized. In this case, we want to trigger a resize
246 * to recalculate layout but we don't want to change the dropped rectangle
247 * So, we pass the height of text area of control as the height.
248 * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
249 * message.
250 */
251 SetWindowPos( CB_HWND(lphc),
252 (HWND)0,
253 0, 0,
254 windowRect.right - windowRect.left,
255 newComboHeight,
256 SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
257}
258
259/***********************************************************************
260 * CBCalcPlacement
261 *
262 * Set up component coordinates given valid lphc->RectCombo.
263 */
264static void CBCalcPlacement(
265 HWND hwnd,
266 LPHEADCOMBO lphc,
267 LPRECT lprEdit,
268 LPRECT lprButton,
269 LPRECT lprLB)
270{
271 /*
272 * Again, start with the client rectangle.
273 */
274 GetClientRect(hwnd, lprEdit);
275
276 /*
277 * Remove the borders
278 */
279 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
280
281 /*
282 * Chop off the bottom part to fit with the height of the text area.
283 */
284 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
285
286 /*
287 * The button starts the same vertical position as the text area.
288 */
289 CopyRect(lprButton, lprEdit);
290
291 /*
292 * If the combobox is "simple" there is no button.
293 */
294 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
295 lprButton->left = lprButton->right = lprButton->bottom = 0;
296 else
297 {
298 /*
299 * Let's assume the combobox button is the same width as the
300 * scrollbar button.
301 * size the button horizontally and cut-off the text area.
302 */
303 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
304 lprEdit->right = lprButton->left;
305 }
306
307 /*
308 * In the case of a dropdown, there is an additional spacing between the
309 * text area and the button.
310 */
311 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
312 {
313 lprEdit->right -= COMBO_EDITBUTTONSPACE();
314 }
315
316 /*
317 * If we have an edit control, we space it away from the borders slightly.
318 */
319 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
320 {
321 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
322 }
323
324 /*
325 * Adjust the size of the listbox popup.
326 */
327 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
328 {
329 /*
330 * Use the client rectangle to initialize the listbox rectangle
331 */
332 GetClientRect(hwnd, lprLB);
333
334 /*
335 * Then, chop-off the top part.
336 */
337 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
338 }
339 else
340 {
341 //SvL: Listbox size might have changed!
342 if(lphc->hWndLBox)
343 GetWindowRect(lphc->hWndLBox, lprLB);
344
345 /*
346 * Make sure the dropped width is as large as the combobox itself.
347 */
348 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
349 {
350 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
351
352 /*
353 * In the case of a dropdown, the popup listbox is offset to the right.
354 * so, we want to make sure it's flush with the right side of the
355 * combobox
356 */
357 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
358 lprLB->right -= COMBO_EDITBUTTONSPACE();
359 }
360 else
361 lprLB->right = lprLB->left + lphc->droppedWidth;
362 }
363
364 //TRACE("\ttext\t= (%i,%i-%i,%i)\n",
365 // lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom);
366
367 //TRACE("\tbutton\t= (%i,%i-%i,%i)\n",
368 // lprButton->left, lprButton->top, lprButton->right, lprButton->bottom);
369
370 //TRACE("\tlbox\t= (%i,%i-%i,%i)\n",
371 // lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
372}
373
374/***********************************************************************
375 * CBGetDroppedControlRect
376 */
377static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
378{
379 /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
380 of the combo box and the lower right corner of the listbox */
381
382 GetWindowRect(lphc->hwndself, lpRect);
383
384 lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
385 lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
386
387}
388
389/***********************************************************************
390 * COMBO_WindowPosChanging
391 */
392static LRESULT COMBO_WindowPosChanging(HWND hwnd,WPARAM wParam,LPARAM lParam)
393{
394 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
395 WINDOWPOS *posChanging = (WINDOWPOS*)lParam;
396
397 dprintf(("COMBO_WindowPosChanging"));
398
399 /*
400 * We need to override the WM_WINDOWPOSCHANGING method to handle all
401 * the non-simple comboboxes. The problem is that those controls are
402 * always the same height. We have to make sure they are not resized
403 * to another value.
404 */
405 if ( ( CB_GETTYPE(lphc) != CBS_SIMPLE ) &&
406 ((posChanging->flags & SWP_NOSIZE) == 0) )
407 {
408 int newComboHeight;
409
410 newComboHeight = CBGetTextAreaHeight(hwnd,lphc) +
411 2*COMBO_YBORDERSIZE();
412
413 /*
414 * Resizing a combobox has another side effect, it resizes the dropped
415 * rectangle as well. However, it does it only if the new height for the
416 * combobox is different than the height it should have. In other words,
417 * if the application resizing the combobox only had the intention to resize
418 * the actual control, for example, to do the layout of a dialog that is
419 * resized, the height of the dropdown is not changed.
420 */
421 if (posChanging->cy != newComboHeight)
422 {
423 lphc->droppedRect.bottom = lphc->droppedRect.top + posChanging->cy - newComboHeight;
424
425 posChanging->cy = newComboHeight;
426 }
427 }
428
429 return 0;
430}
431
432/***********************************************************************
433 * COMBO_Create
434 */
435static LRESULT COMBO_Create(HWND hwnd,WPARAM wParam,LPARAM lParam)
436{
437 static char clbName[] = "ComboLBox";
438 static char editName[] = "Edit";
439 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
440
441 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
442
443 if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
444 else if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
445
446 lphc->hwndself = hwnd;
447 lphc->owner = lpcs->hwndParent;
448
449 /*
450 * The item height and dropped width are not set when the control
451 * is created.
452 */
453 lphc->droppedWidth = lphc->editHeight = 0;
454
455 /*
456 * The first time we go through, we want to measure the ownerdraw item
457 */
458 lphc->wState |= CBF_MEASUREITEM;
459
460 /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
461
462 if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
463 {
464 UINT lbeStyle = 0;
465 UINT lbeExStyle = 0;
466
467 /*
468 * Initialize the dropped rect to the size of the client area of the
469 * control and then, force all the areas of the combobox to be
470 * recalculated.
471 */
472 GetClientRect( hwnd, &lphc->droppedRect );
473
474 CBCalcPlacement(hwnd,
475 lphc,
476 &lphc->textRect,
477 &lphc->buttonRect,
478 &lphc->droppedRect );
479
480 /*
481 * Adjust the position of the popup listbox if it's necessary
482 */
483 if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
484 {
485 lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
486
487 /*
488 * If it's a dropdown, the listbox is offset
489 */
490 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
491 lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
492
493 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect);
494 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect.right);
495 }
496
497 /* create listbox popup */
498
499 lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS) |
500 (lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
501
502 if( lphc->dwStyle & CBS_SORT )
503 lbeStyle |= LBS_SORT;
504 if( lphc->dwStyle & CBS_HASSTRINGS )
505 lbeStyle |= LBS_HASSTRINGS;
506 if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
507 lbeStyle |= LBS_NOINTEGRALHEIGHT;
508 if( lphc->dwStyle & CBS_DISABLENOSCROLL )
509 lbeStyle |= LBS_DISABLENOSCROLL;
510
511 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
512 {
513 lbeStyle |= WS_CHILD | WS_VISIBLE;
514
515 /*
516 * In win 95 look n feel, the listbox in the simple combobox has
517 * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
518 */
519 lbeStyle &= ~WS_BORDER;
520 lbeExStyle |= WS_EX_CLIENTEDGE;
521 }
522 else /* popup listbox */
523 lbeStyle |= WS_POPUP;
524
525 /* Dropdown ComboLBox is not a child window and we cannot pass
526 * ID_CB_LISTBOX directly because it will be treated as a menu handle.
527 */
528 lphc->hWndLBox = CreateWindowExA(lbeExStyle,
529 clbName,
530 NULL,
531 lbeStyle,
532 lphc->droppedRect.left,
533 lphc->droppedRect.top,
534 lphc->droppedRect.right - lphc->droppedRect.left,
535 lphc->droppedRect.bottom - lphc->droppedRect.top,
536 lphc->hwndself,
537 (lphc->dwStyle & CBS_DROPDOWN)? (HMENU)0 : (HMENU)ID_CB_LISTBOX,
538 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
539 (LPVOID)lphc );
540
541 /*
542 * The ComboLBox is a strange little beast (when it's not a CBS_SIMPLE)...
543 * It's a popup window but, when you get the window style, you get WS_CHILD.
544 * When created, it's parent is the combobox but, when you ask for it's parent
545 * after that, you're supposed to get the desktop. (see MFC code function
546 * AfxCancelModes)
547 * To achieve this in Wine, we have to create it as a popup and change
548 * it's style to child after the creation.
549 */
550 if ( (lphc->hWndLBox!= 0) &&
551 (CB_GETTYPE(lphc) != CBS_SIMPLE) )
552 {
553 SetWindowLongA(lphc->hWndLBox,
554 GWL_STYLE,
555 (GetWindowLongA(lphc->hWndLBox, GWL_STYLE) | WS_CHILD) & ~WS_POPUP);
556 }
557
558 if( lphc->hWndLBox )
559 {
560 BOOL bEdit = TRUE;
561 lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT;
562
563 /*
564 * In Win95 look, the border fo the edit control is
565 * provided by the combobox
566 */
567 if( lphc->wState & CBF_EDIT )
568 {
569 if( lphc->dwStyle & CBS_OEMCONVERT )
570 lbeStyle |= ES_OEMCONVERT;
571 if( lphc->dwStyle & CBS_AUTOHSCROLL )
572 lbeStyle |= ES_AUTOHSCROLL;
573 if( lphc->dwStyle & CBS_LOWERCASE )
574 lbeStyle |= ES_LOWERCASE;
575 else if( lphc->dwStyle & CBS_UPPERCASE )
576 lbeStyle |= ES_UPPERCASE;
577
578 lphc->hWndEdit = CreateWindowExA(0,
579 editName,
580 NULL,
581 lbeStyle,
582 lphc->textRect.left, lphc->textRect.top,
583 lphc->textRect.right - lphc->textRect.left,
584 lphc->textRect.bottom - lphc->textRect.top,
585 lphc->hwndself,
586 (HMENU)ID_CB_EDIT,
587 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
588 NULL );
589
590 if( !lphc->hWndEdit )
591 bEdit = FALSE;
592 }
593
594 if( bEdit )
595 {
596 /*
597 * If the combo is a dropdown, we must resize the control to fit only
598 * the text area and button. To do this, we send a dummy resize and the
599 * WM_WINDOWPOSCHANGING message will take care of setting the height for
600 * us.
601 */
602 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
603 {
604 CBForceDummyResize(lphc);
605 }
606
607 //TRACE("init done\n");
608 return hwnd;
609 }
610 //ERR("edit control failure.\n");
611 } //else ERR("listbox failure.\n");
612 } //else ERR("no owner for visible combo.\n");
613
614 /* CreateWindow() will send WM_NCDESTROY to cleanup */
615
616 return -1;
617}
618
619/***********************************************************************
620 * CBPaintButton
621 *
622 * Paint combo button (normal, pressed, and disabled states).
623 */
624static void CBPaintButton(
625 LPHEADCOMBO lphc,
626 HDC hdc,
627 RECT rectButton)
628{
629 if( lphc->wState & CBF_NOREDRAW )
630 return;
631
632
633 UINT buttonState = DFCS_SCROLLCOMBOBOX;
634
635 if (lphc->wState & CBF_BUTTONDOWN)
636 {
637 buttonState |= DFCS_PUSHED;
638 }
639
640 if (CB_DISABLED(lphc))
641 {
642 buttonState |= DFCS_INACTIVE;
643 }
644
645 DrawFrameControl(hdc,&rectButton,DFC_SCROLL,buttonState);
646}
647
648/***********************************************************************
649 * CBPaintText
650 *
651 * Paint CBS_DROPDOWNLIST text field / update edit control contents.
652 */
653static void CBPaintText(
654 LPHEADCOMBO lphc,
655 HDC hdc,
656 RECT rectEdit)
657{
658 INT id, size = 0;
659 LPSTR pText = NULL;
660
661 if( lphc->wState & CBF_NOREDRAW ) return;
662
663 /* follow Windows combobox that sends a bunch of text
664 * inquiries to its listbox while processing WM_PAINT. */
665
666 if( (id = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
667 {
668 size = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
669 if( (pText = (char*)HeapAlloc( GetProcessHeap(), 0, size + 1)) != NULL )
670 {
671 SendMessageA( lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText );
672 pText[size] = '\0'; /* just in case */
673 } else return;
674 }
675
676 if( lphc->wState & CBF_EDIT )
677 {
678 if( CB_HASSTRINGS(lphc) ) SetWindowTextA( lphc->hWndEdit, pText ? pText : "" );
679 if( lphc->wState & CBF_FOCUSED )
680 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
681 }
682 else /* paint text field ourselves */
683 {
684 UINT itemState;
685 HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
686
687 /*
688 * Give ourselves some space.
689 */
690 InflateRect( &rectEdit, -1, -1 );
691
692 if ( (lphc->wState & CBF_FOCUSED) &&
693 !(lphc->wState & CBF_DROPPED) )
694 {
695 /* highlight */
696
697 FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
698 SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
699 SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
700 itemState = ODS_SELECTED | ODS_FOCUS;
701 }
702 else
703 itemState = 0;
704
705 if( CB_OWNERDRAWN(lphc) )
706 {
707 DRAWITEMSTRUCT dis;
708 HRGN clipRegion;
709 DWORD dwStyle = GetWindowLongA(lphc->hwndself,GWL_STYLE);
710
711 /*
712 * Save the current clip region.
713 * To retrieve the clip region, we need to create one "dummy"
714 * clip region.
715 */
716 clipRegion = CreateRectRgnIndirect(&rectEdit);
717
718 if (GetClipRgn(hdc, clipRegion)!=1)
719 {
720 DeleteObject(clipRegion);
721 clipRegion=(HRGN)NULL;
722 }
723
724 if ( dwStyle & WS_DISABLED )
725 itemState |= ODS_DISABLED;
726
727 dis.CtlType = ODT_COMBOBOX;
728 dis.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
729 dis.hwndItem = lphc->hwndself;
730 dis.itemAction = ODA_DRAWENTIRE;
731 dis.itemID = id;
732 dis.itemState = itemState;
733 dis.hDC = hdc;
734 dis.rcItem = rectEdit;
735 dis.itemData = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA,
736 (WPARAM)id, 0 );
737
738 /*
739 * Clip the DC and have the parent draw the item.
740 */
741 IntersectClipRect(hdc,
742 rectEdit.left, rectEdit.top,
743 rectEdit.right, rectEdit.bottom);
744
745 SendMessageA(lphc->owner, WM_DRAWITEM,
746 GetWindowLongA(lphc->hwndself,GWL_ID), (LPARAM)&dis );
747
748 /*
749 * Reset the clipping region.
750 */
751 SelectClipRgn(hdc, clipRegion);
752 }
753 else
754 {
755 ExtTextOutA( hdc,
756 rectEdit.left + 1,
757 rectEdit.top + 1,
758 ETO_OPAQUE | ETO_CLIPPED,
759 &rectEdit,
760 pText ? pText : "" , size, NULL );
761
762 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
763 DrawFocusRect( hdc, &rectEdit );
764 }
765
766 if( hPrevFont )
767 SelectObject(hdc, hPrevFont );
768 }
769 if (pText)
770 HeapFree( GetProcessHeap(), 0, pText );
771}
772
773/***********************************************************************
774 * CBPaintBorder
775 */
776static void CBPaintBorder(
777 HWND hwnd,
778 LPHEADCOMBO lphc,
779 HDC hdc)
780{
781 RECT clientRect;
782
783 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
784 {
785 GetClientRect(hwnd, &clientRect);
786 }
787 else
788 {
789 CopyRect(&clientRect, &lphc->textRect);
790
791 InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
792 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
793 }
794
795 DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
796}
797
798/***********************************************************************
799 * COMBO_PrepareColors
800 *
801 * This method will sent the appropriate WM_CTLCOLOR message to
802 * prepare and setup the colors for the combo's DC.
803 *
804 * It also returns the brush to use for the background.
805 */
806static HBRUSH COMBO_PrepareColors(
807 HWND hwnd,
808 LPHEADCOMBO lphc,
809 HDC hDC)
810{
811 HBRUSH hBkgBrush;
812
813 /*
814 * Get the background brush for this control.
815 */
816 if (CB_DISABLED(lphc))
817 {
818 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORSTATIC,
819 hDC, lphc->hwndself );
820
821 /*
822 * We have to change the text color since WM_CTLCOLORSTATIC will
823 * set it to the "enabled" color. This is the same behavior as the
824 * edit control
825 */
826 SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
827 }
828 else
829 {
830 if (lphc->wState & CBF_EDIT)
831 {
832 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLOREDIT,
833 hDC, lphc->hwndself );
834 }
835 else
836 {
837 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
838 hDC, lphc->hwndself );
839 }
840 }
841
842 /*
843 * Catch errors.
844 */
845 if( !hBkgBrush )
846 hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
847
848 return hBkgBrush;
849}
850
851/***********************************************************************
852 * COMBO_EraseBackground
853 */
854static LRESULT COMBO_EraseBackground(HWND hwnd,WPARAM wParam,LPARAM lParam)
855{
856 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
857 HBRUSH hBkgBrush;
858 RECT clientRect;
859 HDC hDC;
860
861 hDC = (wParam) ? (HDC)wParam:GetDC(hwnd);
862
863 /*
864 * Calculate the area that we want to erase.
865 */
866 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
867 {
868 GetClientRect(hwnd, &clientRect);
869 }
870 else
871 {
872 CopyRect(&clientRect, &lphc->textRect);
873
874 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
875 }
876
877 /*
878 * Retrieve the background brush
879 */
880 hBkgBrush = COMBO_PrepareColors(hwnd, lphc, hDC);
881
882 FillRect(hDC, &clientRect, hBkgBrush);
883
884 if (!wParam)
885 ReleaseDC(hwnd, hDC);
886
887 return TRUE;
888}
889
890static LRESULT COMBO_GetDlgCode(HWND hwnd,WPARAM wParam,LPARAM lParam)
891{
892 return DLGC_WANTARROWS | DLGC_WANTCHARS;
893}
894
895/***********************************************************************
896 * COMBO_Paint
897 */
898static LRESULT COMBO_Paint(HWND hwnd,WPARAM wParam,LPARAM lParam)
899{
900 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
901 PAINTSTRUCT ps;
902 HDC hDC;
903
904 hDC = (wParam) ? (HDC)wParam:BeginPaint(hwnd,&ps);
905
906
907 if( hDC && !(lphc->wState & CBF_NOREDRAW) )
908 {
909 HBRUSH hPrevBrush, hBkgBrush;
910
911 /*
912 * Retrieve the background brush and select it in the
913 * DC.
914 */
915 hBkgBrush = COMBO_PrepareColors(hwnd,lphc,hDC);
916
917 hPrevBrush = SelectObject( hDC, hBkgBrush );
918
919 /*
920 * In non 3.1 look, there is a sunken border on the combobox
921 */
922 CBPaintBorder(CB_HWND(lphc), lphc, hDC);
923
924 if( !IsRectEmpty(&lphc->buttonRect) )
925 {
926 CBPaintButton(lphc, hDC, lphc->buttonRect);
927 }
928
929 if( !(lphc->wState & CBF_EDIT) )
930 {
931 /*
932 * The text area has a border only in Win 3.1 look.
933 */
934
935 CBPaintText( lphc, hDC, lphc->textRect);
936 }
937
938 if( hPrevBrush )
939 SelectObject( hDC, hPrevBrush );
940 }
941
942 if(!wParam) EndPaint(hwnd,&ps);
943
944 return 0;
945}
946
947static LRESULT COMBO_PrintClient(HWND hwnd,WPARAM wParam,LPARAM lParam)
948{
949 if (lParam & PRF_ERASEBKGND) COMBO_EraseBackground(hwnd,wParam,lParam);
950
951 return COMBO_Paint(hwnd,wParam,lParam);
952}
953
954/***********************************************************************
955 * CBUpdateLBox
956 *
957 * Select listbox entry according to the contents of the edit control.
958 */
959static INT CBUpdateLBox( LPHEADCOMBO lphc )
960{
961 INT length, idx;
962 LPSTR pText = NULL;
963
964 idx = LB_ERR;
965 length = CB_GETEDITTEXTLENGTH( lphc );
966
967 if( length > 0 )
968 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
969
970 //TRACE("\t edit text length %i\n", length );
971
972 if( pText )
973 {
974 if( length ) GetWindowTextA( lphc->hWndEdit, pText, length + 1);
975 else pText[0] = '\0';
976 idx = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
977 (WPARAM)(-1), (LPARAM)pText );
978 HeapFree( GetProcessHeap(), 0, pText );
979 }
980
981 if( idx >= 0 )
982 {
983 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)idx, 0 );
984 /* probably superfluous but Windows sends this too */
985 SendMessageA( lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)idx, 0 );
986 }
987 return idx;
988}
989
990/***********************************************************************
991 * CBUpdateEdit
992 *
993 * Copy a listbox entry to the edit control.
994 */
995static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
996{
997 INT length;
998 LPSTR pText = NULL;
999
1000 //TRACE("\t %i\n", index );
1001
1002 if( index >= 0 ) /* got an entry */
1003 {
1004 length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
1005 if( length )
1006 {
1007 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1008 if(pText)
1009 {
1010 SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1011 (WPARAM)index, (LPARAM)pText );
1012 }
1013 }
1014 }
1015 lphc->wState |= CBF_NOEDITNOTIFY;
1016
1017 SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)"" );
1018
1019 if( pText )
1020 HeapFree( GetProcessHeap(), 0, pText );
1021}
1022
1023/***********************************************************************
1024 * CBDropDown
1025 *
1026 * Show listbox popup.
1027 */
1028static void CBDropDown( LPHEADCOMBO lphc )
1029{
1030 RECT rect;
1031 int nItems = 0;
1032 int i;
1033 int nHeight;
1034 int nDroppedHeight,nTempDroppedHeight;
1035
1036 //TRACE("[%04x]: drop down\n", CB_HWND(lphc));
1037
1038 CB_NOTIFY( lphc, CBN_DROPDOWN );
1039
1040 /* set selection */
1041
1042 lphc->wState |= CBF_DROPPED;
1043 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1044 {
1045 lphc->droppedIndex = CBUpdateLBox( lphc );
1046
1047 if( !(lphc->wState & CBF_CAPTURE) )
1048 CBUpdateEdit( lphc, lphc->droppedIndex );
1049 }
1050 else
1051 {
1052 lphc->droppedIndex = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1053
1054 if( lphc->droppedIndex == LB_ERR )
1055 lphc->droppedIndex = 0;
1056
1057 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)lphc->droppedIndex, 0 );
1058 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1059 }
1060
1061 /* now set popup position */
1062 GetWindowRect( lphc->hwndself, &rect );
1063
1064 /*
1065 * If it's a dropdown, the listbox is offset
1066 */
1067 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1068 rect.left += COMBO_EDITBUTTONSPACE();
1069
1070 /* if the dropped height is greater than the total height of the dropped
1071 items list, then force the drop down list height to be the total height
1072 of the items in the dropped list */
1073
1074 /* And Remove any extra space (Best Fit) */
1075 nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
1076 nItems = (int)SendMessageA (lphc->hWndLBox, LB_GETCOUNT, 0, 0);
1077 nHeight = COMBO_YBORDERSIZE();
1078 nTempDroppedHeight = 0;
1079 for (i = 0; i < nItems; i++)
1080 {
1081 nHeight += (int)SendMessageA (lphc->hWndLBox, LB_GETITEMHEIGHT, i, 0);
1082
1083 /* Did we pass the limit of what can be displayed */
1084 if (nHeight > nDroppedHeight)
1085 {
1086 break;
1087 }
1088 nTempDroppedHeight = nHeight;
1089 }
1090
1091 nDroppedHeight = nTempDroppedHeight;
1092
1093 SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.bottom,
1094 lphc->droppedRect.right - lphc->droppedRect.left,
1095 nDroppedHeight,
1096 SWP_NOACTIVATE | SWP_NOREDRAW);
1097
1098
1099 if( !(lphc->wState & CBF_NOREDRAW) )
1100 RedrawWindow( lphc->hwndself, NULL, 0, RDW_INVALIDATE |
1101 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1102
1103 ShowWindow( lphc->hWndLBox, SW_SHOWNA );
1104}
1105
1106/***********************************************************************
1107 * CBRollUp
1108 *
1109 * Hide listbox popup.
1110 */
1111static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
1112{
1113 HWND hWnd = lphc->hwndself;
1114
1115 CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
1116
1117 if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
1118 {
1119
1120 //TRACE("[%04x]: roll up [%i]\n", CB_HWND(lphc), (INT)ok );
1121
1122 if( lphc->wState & CBF_DROPPED )
1123 {
1124 RECT rect;
1125
1126 lphc->wState &= ~CBF_DROPPED;
1127 ShowWindow( lphc->hWndLBox, SW_HIDE );
1128 if(GetCapture() == lphc->hWndLBox)
1129 {
1130 ReleaseCapture();
1131 }
1132
1133 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1134 {
1135 INT index = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1136 CBUpdateEdit( lphc, index );
1137 rect = lphc->buttonRect;
1138 }
1139 else
1140 {
1141 if( bButton )
1142 {
1143 UnionRect( &rect,
1144 &lphc->buttonRect,
1145 &lphc->textRect);
1146 }
1147 else
1148 rect = lphc->textRect;
1149
1150 bButton = TRUE;
1151 }
1152
1153 if( bButton && !(lphc->wState & CBF_NOREDRAW) )
1154 RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
1155 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1156 CB_NOTIFY( lphc, CBN_CLOSEUP );
1157 }
1158 }
1159}
1160
1161/***********************************************************************
1162 * COMBO_FlipListbox
1163 *
1164 * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
1165 */
1166BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL bRedrawButton )
1167{
1168 if( lphc->wState & CBF_DROPPED )
1169 {
1170 CBRollUp( lphc, TRUE, bRedrawButton );
1171 return FALSE;
1172 }
1173
1174 CBDropDown( lphc );
1175 return TRUE;
1176}
1177
1178/***********************************************************************
1179 * COMBO_GetLBWindow
1180 *
1181 * Edit control helper.
1182 */
1183HWND COMBO_GetLBWindow( HWND hwnd )
1184{
1185 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1186
1187 return lphc ? lphc->hWndLBox:0;
1188}
1189
1190
1191/***********************************************************************
1192 * CBRepaintButton
1193 */
1194static void CBRepaintButton( LPHEADCOMBO lphc )
1195 {
1196 InvalidateRect(CB_HWND(lphc), &lphc->buttonRect, TRUE);
1197 UpdateWindow(CB_HWND(lphc));
1198}
1199
1200static VOID COMBO_EditSetFocus(LPHEADCOMBO lphc)
1201{
1202 if(!(lphc->wState & CBF_FOCUSED))
1203 {
1204 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1205 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1206
1207 lphc->wState |= CBF_FOCUSED;
1208
1209 if( !(lphc->wState & CBF_EDIT) )
1210 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1211
1212 CB_NOTIFY( lphc, CBN_SETFOCUS );
1213 }
1214}
1215
1216/***********************************************************************
1217 * COMBO_SetFocus
1218 */
1219static LRESULT COMBO_SetFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1220{
1221 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1222
1223 if(lphc->wState & CBF_EDIT)
1224 SetFocus(lphc->hWndEdit);
1225 else
1226 COMBO_EditSetFocus(lphc);
1227
1228 return 0;
1229}
1230
1231static VOID COMBO_EditKillFocus(LPHEADCOMBO lphc)
1232{
1233 if( lphc->wState & CBF_FOCUSED )
1234 {
1235 CBRollUp( lphc, FALSE, TRUE );
1236 if( IsWindow( lphc->hwndself ) )
1237 {
1238 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1239 SendMessageA( lphc->hWndLBox, LB_CARETOFF, 0, 0 );
1240
1241 lphc->wState &= ~CBF_FOCUSED;
1242
1243 /* redraw text */
1244 if( !(lphc->wState & CBF_EDIT) )
1245 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1246
1247 CB_NOTIFY( lphc, CBN_KILLFOCUS );
1248 }
1249 }
1250}
1251
1252/***********************************************************************
1253 * COMBO_KillFocus
1254 */
1255static LRESULT COMBO_KillFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1256{
1257 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1258
1259 if(!wParam || (wParam != lphc->hWndEdit && wParam != lphc->hWndLBox ))
1260 {
1261 COMBO_EditKillFocus(lphc);
1262 }
1263
1264 return 0;
1265}
1266
1267/***********************************************************************
1268 * COMBO_Command
1269 */
1270static LRESULT COMBO_Command(HWND hwnd,WPARAM wParam,LPARAM lParam)
1271{
1272 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1273
1274 if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == lParam )
1275 {
1276 /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
1277
1278 switch( HIWORD(wParam) >> 8 )
1279 {
1280 case (EN_SETFOCUS >> 8):
1281
1282 //TRACE("[%04x]: edit [%04x] got focus\n",
1283 // CB_HWND(lphc), lphc->hWndEdit );
1284
1285 COMBO_EditSetFocus(lphc);
1286 break;
1287
1288 case (EN_KILLFOCUS >> 8):
1289
1290 //TRACE("[%04x]: edit [%04x] lost focus\n",
1291 // CB_HWND(lphc), lphc->hWndEdit );
1292
1293 /* NOTE: it seems that Windows' edit control sends an
1294 * undocumented message WM_USER + 0x1B instead of this
1295 * notification (only when it happens to be a part of
1296 * the combo). ?? - AK.
1297 */
1298
1299 COMBO_EditKillFocus(lphc);
1300 break;
1301
1302
1303 case (EN_CHANGE >> 8):
1304 /*
1305 * In some circumstances (when the selection of the combobox
1306 * is changed for example) we don't wans the EN_CHANGE notification
1307 * to be forwarded to the parent of the combobox. This code
1308 * checks a flag that is set in these occasions and ignores the
1309 * notification.
1310 */
1311 if (lphc->wState & CBF_NOEDITNOTIFY)
1312 {
1313 lphc->wState &= ~CBF_NOEDITNOTIFY;
1314 }
1315 else
1316 {
1317 CB_NOTIFY( lphc, CBN_EDITCHANGE );
1318 }
1319
1320 CBUpdateLBox( lphc );
1321 break;
1322
1323 case (EN_UPDATE >> 8):
1324 CB_NOTIFY( lphc, CBN_EDITUPDATE );
1325 break;
1326
1327 case (EN_ERRSPACE >> 8):
1328 CB_NOTIFY( lphc, CBN_ERRSPACE );
1329 }
1330 }
1331 else if( lphc->hWndLBox == lParam )
1332 {
1333 switch( HIWORD(wParam) )
1334 {
1335 case LBN_ERRSPACE:
1336 CB_NOTIFY( lphc, CBN_ERRSPACE );
1337 break;
1338
1339 case LBN_DBLCLK:
1340 CB_NOTIFY( lphc, CBN_DBLCLK );
1341 break;
1342
1343 case LBN_SELCHANGE:
1344 case LBN_SELCANCEL:
1345
1346 //TRACE("[%04x]: lbox selection change [%04x]\n",
1347 // CB_HWND(lphc), lphc->wState );
1348
1349 /* do not roll up if selection is being tracked
1350 * by arrowkeys in the dropdown listbox */
1351
1352 if( (lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP) )
1353 CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
1354 else lphc->wState &= ~CBF_NOROLLUP;
1355
1356 if( lphc->wState & CBF_EDIT )
1357 {
1358 INT index = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1359 CBUpdateEdit( lphc, index );
1360 /* select text in edit, as Windows does */
1361 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1362 }
1363 else
1364 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1365
1366 CB_NOTIFY( lphc, CBN_SELCHANGE );
1367 /* fall through */
1368
1369 case LBN_SETFOCUS:
1370 case LBN_KILLFOCUS:
1371 /* nothing to do here since ComboLBox always resets the focus to its
1372 * combo/edit counterpart */
1373 break;
1374 }
1375 }
1376 return 0;
1377}
1378
1379/***********************************************************************
1380 * COMBO_HandleItem
1381 *
1382 * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
1383 */
1384static LRESULT COMBO_HandleItem(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
1385{
1386 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1387
1388 //TRACE("[%04x]: ownerdraw op %04x\n", CB_HWND(lphc), msg );
1389
1390#define lpIS ((LPDELETEITEMSTRUCT)lParam)
1391
1392 /* two first items are the same in all 4 structs */
1393 lpIS->CtlType = ODT_COMBOBOX;
1394 lpIS->CtlID = GetWindowLongA(hwnd,GWL_ID);
1395
1396 switch( msg ) /* patch window handle */
1397 {
1398 case WM_DELETEITEM:
1399 lpIS->hwndItem = hwnd;
1400#undef lpIS
1401 break;
1402 case WM_DRAWITEM:
1403#define lpIS ((LPDRAWITEMSTRUCT)lParam)
1404 lpIS->hwndItem = hwnd;
1405#undef lpIS
1406 break;
1407 case WM_COMPAREITEM:
1408#define lpIS ((LPCOMPAREITEMSTRUCT)lParam)
1409 lpIS->hwndItem = hwnd;
1410#undef lpIS
1411 break;
1412 }
1413
1414 return SendMessageA( lphc->owner, msg, GetWindowLongA(hwnd,GWL_ID), lParam );
1415}
1416
1417/***********************************************************************
1418 * COMBO_GetText
1419 */
1420static LRESULT COMBO_GetText(HWND hwnd,WPARAM wParam,LPARAM lParam)
1421{
1422 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1423
1424 if( lphc->wState & CBF_EDIT )
1425 return SendMessageA( lphc->hWndEdit, WM_GETTEXT,
1426 wParam,lParam);
1427
1428 /* get it from the listbox */
1429
1430 if( lphc->hWndLBox )
1431 {
1432 INT idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1433 if( idx != LB_ERR )
1434 {
1435 LPSTR lpBuffer;
1436 INT length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN,
1437 (WPARAM)idx, 0 );
1438
1439 /* 'length' is without the terminating character */
1440 if( length >= (UINT)wParam )
1441 lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
1442 else
1443 lpBuffer = (LPSTR)lParam;
1444
1445 if( lpBuffer )
1446 {
1447 INT n = SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1448 (WPARAM)idx, (LPARAM)lpBuffer );
1449
1450 /* truncate if buffer is too short */
1451
1452 if( length >= (UINT)wParam )
1453 {
1454 if ((UINT)wParam && lParam) {
1455 if( n != LB_ERR ) memcpy( (LPSTR)lParam, lpBuffer, ((UINT)wParam>n) ? n+1 : (UINT)wParam-1 );
1456 ((LPSTR)lParam)[(UINT)wParam - 1] = '\0';
1457 }
1458 HeapFree( GetProcessHeap(), 0, lpBuffer );
1459 }
1460 return (LRESULT)n;
1461 }
1462 }
1463 }
1464 return 0;
1465}
1466
1467static LRESULT COMBO_HandleText(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1468{
1469 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1470
1471 if (lphc == NULL)
1472 {
1473 dprintf(("COMBO_HandleText Info Pointer NULL!\n"));
1474 return CB_ERR;
1475 }
1476
1477 if ((message == WM_GETTEXTLENGTH) && !(lphc->wState & CBF_EDIT))
1478 {
1479 int j = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1480
1481 if (j == -1) return 0;
1482 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, j, 0);
1483 } else if( lphc->wState & CBF_EDIT )
1484 {
1485 lphc->wState |= CBF_NOEDITNOTIFY;
1486
1487 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1488 } else return CB_ERR;
1489}
1490
1491/***********************************************************************
1492 * CBResetPos
1493 *
1494 * This function sets window positions according to the updated
1495 * component placement struct.
1496 */
1497static void CBResetPos(
1498 LPHEADCOMBO lphc,
1499 LPRECT rectEdit,
1500 LPRECT rectLB,
1501 BOOL bRedraw)
1502{
1503 BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1504
1505 /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1506 * sizing messages */
1507
1508 if( lphc->wState & CBF_EDIT )
1509 SetWindowPos( lphc->hWndEdit, 0,
1510 rectEdit->left, rectEdit->top,
1511 rectEdit->right - rectEdit->left,
1512 rectEdit->bottom - rectEdit->top,
1513 SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1514
1515 SetWindowPos( lphc->hWndLBox, 0,
1516 rectLB->left, rectLB->top,
1517 rectLB->right - rectLB->left,
1518 rectLB->bottom - rectLB->top,
1519 SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1520
1521 if( bDrop )
1522 {
1523 if( lphc->wState & CBF_DROPPED )
1524 {
1525 lphc->wState &= ~CBF_DROPPED;
1526 ShowWindow( lphc->hWndLBox, SW_HIDE );
1527 }
1528
1529 if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1530 RedrawWindow( lphc->hwndself, NULL, 0,
1531 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1532 }
1533}
1534
1535
1536/***********************************************************************
1537 * COMBO_Size
1538 */
1539static LRESULT COMBO_Size(HWND hwnd,WPARAM wParam,LPARAM lParam)
1540{
1541 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1542
1543 dprintf(("COMBO_Size"));
1544
1545 if(lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
1546 {
1547 CBCalcPlacement(hwnd,
1548 lphc,
1549 &lphc->textRect,
1550 &lphc->buttonRect,
1551 &lphc->droppedRect);
1552
1553 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1554 }
1555
1556 return 0;
1557}
1558
1559
1560/***********************************************************************
1561 * COMBO_Font
1562 */
1563static LRESULT COMBO_SetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1564{
1565 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1566
1567 /*
1568 * Set the font
1569 */
1570 lphc->hFont = wParam;
1571
1572 /*
1573 * Propagate to owned windows.
1574 */
1575 if( lphc->wState & CBF_EDIT )
1576 SendMessageA(lphc->hWndEdit,WM_SETFONT,wParam,lParam);
1577 SendMessageA(lphc->hWndLBox,WM_SETFONT,wParam,lParam);
1578
1579 /*
1580 * Redo the layout of the control.
1581 */
1582 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1583 {
1584 CBCalcPlacement(hwnd,
1585 lphc,
1586 &lphc->textRect,
1587 &lphc->buttonRect,
1588 &lphc->droppedRect);
1589
1590 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1591 }
1592 else
1593 {
1594 CBForceDummyResize(lphc);
1595 }
1596
1597 return 0;
1598}
1599
1600static LRESULT COMBO_GetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1601{
1602 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1603
1604 return lphc->hFont;
1605}
1606
1607
1608/***********************************************************************
1609 * COMBO_LButtonDown
1610 */
1611static LRESULT COMBO_LButtonDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1612{
1613 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1614 POINT pt;
1615 BOOL bButton;
1616
1617 if(!(lphc->wState & CBF_FOCUSED)) SetFocus(hwnd);
1618 if(!(lphc->wState & CBF_FOCUSED)) return 0;
1619
1620 pt.x = LOWORD(lParam);
1621 pt.y = HIWORD(lParam);
1622 bButton = PtInRect(&lphc->buttonRect, pt);
1623
1624 if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1625 (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1626 {
1627 lphc->wState |= CBF_BUTTONDOWN;
1628 if( lphc->wState & CBF_DROPPED )
1629 {
1630 /* got a click to cancel selection */
1631
1632 lphc->wState &= ~CBF_BUTTONDOWN;
1633 CBRollUp( lphc, TRUE, FALSE );
1634 if( !IsWindow( hwnd ) ) return 0;
1635
1636 if( lphc->wState & CBF_CAPTURE )
1637 {
1638 lphc->wState &= ~CBF_CAPTURE;
1639 ReleaseCapture();
1640 }
1641 }
1642 else
1643 {
1644 /* drop down the listbox and start tracking */
1645
1646 lphc->wState |= CBF_CAPTURE;
1647 CBDropDown( lphc );
1648 SetCapture( hwnd );
1649 }
1650 if( bButton ) CBRepaintButton( lphc );
1651 }
1652
1653 return 0;
1654}
1655
1656/***********************************************************************
1657 * COMBO_LButtonUp
1658 *
1659 * Release capture and stop tracking if needed.
1660 */
1661static LRESULT COMBO_LButtonUp(HWND hwnd,WPARAM wParam,LPARAM lParam)
1662{
1663 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1664
1665 if( lphc->wState & CBF_CAPTURE )
1666 {
1667 lphc->wState &= ~CBF_CAPTURE;
1668 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1669 {
1670 INT index = CBUpdateLBox( lphc );
1671 CBUpdateEdit( lphc, index );
1672 }
1673 ReleaseCapture();
1674//SvL: Don't set the capture here. Otherwise other controls don't respond the first time!
1675// SetCapture(lphc->hWndLBox);
1676 }
1677
1678 if( lphc->wState & CBF_BUTTONDOWN )
1679 {
1680 lphc->wState &= ~CBF_BUTTONDOWN;
1681 CBRepaintButton( lphc );
1682 }
1683
1684 return 0;
1685}
1686
1687/***********************************************************************
1688 * COMBO_MouseMove
1689 *
1690 * Two things to do - track combo button and release capture when
1691 * pointer goes into the listbox.
1692 */
1693static LRESULT COMBO_MouseMove(HWND hwnd,WPARAM wParam,LPARAM lParam)
1694{
1695 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1696 POINT pt;
1697 RECT lbRect;
1698
1699 if(!(lphc->wState & CBF_CAPTURE)) return 0;
1700
1701 pt.x = LOWORD(lParam);
1702 pt.y = HIWORD(lParam);
1703
1704 if( lphc->wState & CBF_BUTTONDOWN )
1705 {
1706 BOOL bButton;
1707
1708 bButton = PtInRect(&lphc->buttonRect, pt);
1709
1710 if( !bButton )
1711 {
1712 lphc->wState &= ~CBF_BUTTONDOWN;
1713 CBRepaintButton( lphc );
1714 }
1715 }
1716
1717 GetClientRect( lphc->hWndLBox, &lbRect );
1718 MapWindowPoints(hwnd, lphc->hWndLBox, &pt, 1 );
1719 if( PtInRect(&lbRect, pt) )
1720 {
1721 lphc->wState &= ~CBF_CAPTURE;
1722 ReleaseCapture();
1723 if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc );
1724
1725 /* hand over pointer tracking */
1726 SendMessageA( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
1727 }
1728
1729 return 0;
1730}
1731
1732static LRESULT COMBO_Enable(HWND hwnd,WPARAM wParam,LPARAM lParam)
1733{
1734 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1735
1736 if( lphc->wState & CBF_EDIT )
1737 EnableWindow( lphc->hWndEdit, (BOOL)wParam );
1738 EnableWindow( lphc->hWndLBox, (BOOL)wParam );
1739
1740 /* Force the control to repaint when the enabled state changes. */
1741 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1742
1743 return 0;
1744}
1745
1746static LRESULT COMBO_SetRedraw(HWND hwnd,WPARAM wParam,LPARAM lParam)
1747{
1748 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1749
1750 if( wParam )
1751 lphc->wState &= ~CBF_NOREDRAW;
1752 else
1753 lphc->wState |= CBF_NOREDRAW;
1754
1755 if( lphc->wState & CBF_EDIT )
1756 SendMessageA( lphc->hWndEdit, WM_SETREDRAW, wParam, lParam );
1757 SendMessageA( lphc->hWndLBox, WM_SETREDRAW, wParam, lParam );
1758
1759 return 0;
1760}
1761
1762static LRESULT COMBO_SysKeyDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1763{
1764 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1765
1766 if( KEYDATA_ALT & HIWORD(lParam) )
1767 if( wParam == VK_UP || wParam == VK_DOWN )
1768 COMBO_FlipListbox( lphc, TRUE );
1769
1770 return DefWindowProcA(hwnd,WM_SYSKEYDOWN,wParam,lParam);
1771}
1772
1773static LRESULT COMBO_HandleKey(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1774{
1775 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1776
1777 if( lphc->wState & CBF_EDIT )
1778 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1779 else
1780 return SendMessageA( lphc->hWndLBox, message, wParam, lParam );
1781}
1782
1783/* combobox messages */
1784
1785static LRESULT COMBO_AddString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1786{
1787 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1788
1789 return SendMessageA(lphc->hWndLBox,LB_ADDSTRING,0,lParam);
1790}
1791
1792static LRESULT COMBO_InsertString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1793{
1794 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1795
1796 return SendMessageA(lphc->hWndLBox,LB_INSERTSTRING,wParam,lParam);
1797}
1798
1799static LRESULT COMBO_DeleteString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1800{
1801 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1802
1803 return SendMessageA(lphc->hWndLBox,LB_DELETESTRING,wParam,0);
1804}
1805
1806/***********************************************************************
1807 * COMBO_SelectString
1808 */
1809static LRESULT COMBO_SelectString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1810{
1811 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1812 INT index = SendMessageA(lphc->hWndLBox,LB_SELECTSTRING,wParam,lParam);
1813
1814 if( index >= 0 )
1815 {
1816 if( lphc->wState & CBF_EDIT )
1817 CBUpdateEdit( lphc, index );
1818 else
1819 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1820 }
1821
1822 return (LRESULT)index;
1823}
1824
1825static LRESULT COMBO_FindString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1826{
1827 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1828
1829 return SendMessageA(lphc->hWndLBox,LB_FINDSTRING,wParam,lParam);
1830}
1831
1832static LRESULT COMBO_FindStringExact(HWND hwnd,WPARAM wParam,LPARAM lParam)
1833{
1834 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1835
1836 return SendMessageA(lphc->hWndLBox,LB_FINDSTRINGEXACT,wParam,lParam);
1837}
1838
1839/***********************************************************************
1840 * COMBO_SetItemHeight
1841 */
1842static LRESULT COMBO_SetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1843{
1844 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1845 LRESULT lRet = CB_ERR;
1846
1847 if( wParam == -1 ) /* set text field height */
1848 {
1849 if( lParam < 32768 )
1850 {
1851 lphc->editHeight = lParam;
1852
1853 /*
1854 * Redo the layout of the control.
1855 */
1856 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1857 {
1858 CBCalcPlacement(hwnd,
1859 lphc,
1860 &lphc->textRect,
1861 &lphc->buttonRect,
1862 &lphc->droppedRect);
1863
1864 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1865 }
1866 else
1867 {
1868 CBForceDummyResize(lphc);
1869 }
1870
1871 lRet = lParam;
1872 }
1873 }
1874 else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
1875 lRet = SendMessageA( lphc->hWndLBox, LB_SETITEMHEIGHT,
1876 wParam,lParam);
1877 return lRet;
1878}
1879
1880static LRESULT COMBO_GetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1881{
1882 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1883
1884 if( (INT)wParam >= 0 ) /* listbox item */
1885 return SendMessageA( lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
1886
1887 return CBGetTextAreaHeight(hwnd, lphc);
1888}
1889
1890static LRESULT COMBO_ResetContent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1891{
1892 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1893
1894 SendMessageA( lphc->hWndLBox, LB_RESETCONTENT, 0, 0 );
1895 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1896
1897 return TRUE;
1898}
1899
1900static LRESULT COMBO_InitStorage(HWND hwnd,WPARAM wParam,LPARAM lParam)
1901{
1902 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1903
1904 return SendMessageA( lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
1905}
1906
1907static LRESULT COMBO_GetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1908{
1909 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1910
1911 return SendMessageA( lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
1912}
1913
1914static LRESULT COMBO_SetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1915{
1916 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1917
1918 return SendMessageA( lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
1919}
1920
1921static LRESULT COMBO_GetTopIndex(HWND hwnd,WPARAM wParam,LPARAM lParam)
1922{
1923 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1924
1925 return SendMessageA( lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
1926}
1927
1928static LRESULT COMBO_GetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
1929{
1930 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1931
1932 return SendMessageA( lphc->hWndLBox, LB_GETLOCALE, 0, 0);
1933}
1934
1935static LRESULT COMBO_SetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
1936{
1937 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1938
1939 return SendMessageA( lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
1940}
1941
1942static LRESULT COMBO_GetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
1943{
1944 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1945
1946 if( lphc->droppedWidth )
1947 return lphc->droppedWidth;
1948
1949 return lphc->droppedRect.right - lphc->droppedRect.left;
1950}
1951
1952static LRESULT COMBO_SetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
1953{
1954 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1955
1956 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
1957 (INT)wParam < 32768 ) lphc->droppedWidth = (INT)wParam;
1958
1959 return CB_ERR;
1960}
1961
1962static LRESULT COMBO_GetDroppedControlRect(HWND hwnd,WPARAM wParam,LPARAM lParam)
1963{
1964 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1965
1966 if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
1967
1968 return CB_OKAY;
1969}
1970
1971static LRESULT COMBO_GetDroppedState(HWND hwnd,WPARAM wParam,LPARAM lParam)
1972{
1973 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1974
1975 return (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
1976}
1977
1978static LRESULT COMBO_Dir(HWND hwnd,WPARAM wParam,LPARAM lParam)
1979{
1980 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1981
1982 return COMBO_Directory( lphc, (UINT)wParam,
1983 (LPSTR)lParam,TRUE);
1984}
1985
1986static LRESULT COMBO_ShowDropDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1987{
1988 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1989
1990 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
1991 {
1992 if( wParam )
1993 {
1994 if( !(lphc->wState & CBF_DROPPED) )
1995 CBDropDown( lphc );
1996 }
1997 else
1998 if( lphc->wState & CBF_DROPPED )
1999 CBRollUp( lphc, FALSE, TRUE );
2000 }
2001
2002 return TRUE;
2003}
2004
2005static LRESULT COMBO_GetCount(HWND hwnd,WPARAM wParam,LPARAM lParam)
2006{
2007 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2008
2009 return SendMessageA( lphc->hWndLBox, LB_GETCOUNT, 0, 0);
2010}
2011
2012static LRESULT COMBO_GetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2013{
2014 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2015
2016 return SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0);
2017}
2018
2019static LRESULT COMBO_SetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2020{
2021 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2022
2023 lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
2024 if( lphc->wState & CBF_SELCHANGE )
2025 {
2026 /* no LBN_SELCHANGE in this case, update manually */
2027 if( lphc->wState & CBF_EDIT )
2028 CBUpdateEdit( lphc, (INT)wParam );
2029 else
2030 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
2031
2032 lphc->wState &= ~CBF_SELCHANGE;
2033 }
2034
2035 return lParam;
2036}
2037
2038static LRESULT COMBO_GetLBText(HWND hwnd,WPARAM wParam,LPARAM lParam)
2039{
2040 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2041
2042 return SendMessageA( lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
2043}
2044
2045static LRESULT COMBO_GetLBTextLen(HWND hwnd,WPARAM wParam,LPARAM lParam)
2046{
2047 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2048
2049 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
2050}
2051
2052static LRESULT COMBO_GetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2053{
2054 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2055
2056 return SendMessageA( lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
2057}
2058
2059static LRESULT COMBO_SetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2060{
2061 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2062
2063 return SendMessageA( lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
2064}
2065
2066static LRESULT COMBO_GetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2067{
2068 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2069
2070 if( lphc->wState & CBF_EDIT )
2071 {
2072 INT a, b;
2073
2074 return SendMessageA( lphc->hWndEdit, EM_GETSEL,
2075 (wParam) ? wParam : (WPARAM)&a,
2076 (lParam) ? lParam : (LPARAM)&b );
2077 }
2078
2079 return CB_ERR;
2080}
2081
2082static LRESULT COMBO_SetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2083{
2084 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2085
2086 if( lphc->wState & CBF_EDIT )
2087 return SendMessageA( lphc->hWndEdit, EM_SETSEL,
2088 (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
2089
2090 return CB_ERR;
2091}
2092
2093static LRESULT COMBO_SetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2094{
2095 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2096
2097 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
2098 return CB_ERR;
2099 if( wParam )
2100 lphc->wState |= CBF_EUI;
2101 else lphc->wState &= ~CBF_EUI;
2102 return CB_OKAY;
2103}
2104
2105static LRESULT COMBO_GetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2106{
2107 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2108
2109 return (lphc->wState & CBF_EUI) ? TRUE : FALSE;
2110}
2111
2112/***********************************************************************
2113 * ComboWndProc
2114 *
2115 * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
2116 */
2117LRESULT WINAPI ComboWndProc( HWND hwnd, UINT message,
2118 WPARAM wParam, LPARAM lParam )
2119{
2120// dprintf(("ComboWndProc hwnd: %04x, msg %s, wp %08x lp %08lx\n",
2121// hwnd, GetMsgText(message), wParam, lParam));
2122
2123 switch(message)
2124 {
2125
2126 /* System messages */
2127
2128 case WM_NCCREATE:
2129 return COMBO_NCCreate(hwnd,wParam,lParam);
2130
2131 case WM_NCDESTROY:
2132 return COMBO_NCDestroy(hwnd,wParam,lParam);
2133
2134 case WM_CREATE:
2135 return COMBO_Create(hwnd,wParam,lParam);
2136
2137 case WM_PRINTCLIENT:
2138 return COMBO_PrintClient(hwnd,wParam,lParam);
2139
2140 case WM_PAINT:
2141 return COMBO_Paint(hwnd,wParam,lParam);
2142
2143 case WM_ERASEBKGND:
2144 return COMBO_EraseBackground(hwnd,wParam,lParam);
2145
2146 case WM_GETDLGCODE:
2147 return COMBO_GetDlgCode(hwnd,wParam,lParam);
2148
2149 case WM_WINDOWPOSCHANGING:
2150 return COMBO_WindowPosChanging(hwnd,wParam,lParam);
2151
2152 case WM_SIZE:
2153 return COMBO_Size(hwnd,wParam,lParam);
2154
2155 case WM_SETFONT:
2156 return COMBO_SetFont(hwnd,wParam,lParam);
2157
2158 case WM_GETFONT:
2159 return COMBO_GetFont(hwnd,wParam,lParam);
2160
2161 case WM_SETFOCUS:
2162 return COMBO_SetFocus(hwnd,wParam,lParam);
2163
2164 case WM_KILLFOCUS:
2165 return COMBO_KillFocus(hwnd,wParam,lParam);
2166
2167 case WM_COMMAND:
2168 return COMBO_Command(hwnd,wParam,lParam);
2169
2170 case WM_GETTEXT:
2171 return COMBO_GetText(hwnd,wParam,lParam);
2172
2173 case WM_SETTEXT:
2174 case WM_GETTEXTLENGTH:
2175 case WM_CLEAR:
2176 case WM_CUT:
2177 case WM_PASTE:
2178 case WM_COPY:
2179 return COMBO_HandleText(hwnd,message,wParam,lParam);
2180
2181 case WM_DRAWITEM:
2182 case WM_DELETEITEM:
2183 case WM_COMPAREITEM:
2184 case WM_MEASUREITEM:
2185 return COMBO_HandleItem(hwnd,message,wParam,lParam);
2186
2187 case WM_ENABLE:
2188 return COMBO_Enable(hwnd,wParam,lParam);
2189
2190 case WM_SETREDRAW:
2191 return COMBO_SetRedraw(hwnd,wParam,lParam);
2192
2193 case WM_SYSKEYDOWN:
2194 return COMBO_SysKeyDown(hwnd,wParam,lParam);
2195
2196 case WM_CHAR:
2197 case WM_KEYDOWN:
2198 return COMBO_HandleKey(hwnd,message,wParam,lParam);
2199
2200 case WM_LBUTTONDOWN:
2201 return COMBO_LButtonDown(hwnd,wParam,lParam);
2202
2203 case WM_LBUTTONUP:
2204 return COMBO_LButtonUp(hwnd,wParam,lParam);
2205
2206 case WM_MOUSEMOVE:
2207 return COMBO_MouseMove(hwnd,wParam,lParam);
2208
2209 /* Combo messages */
2210
2211 case CB_ADDSTRING:
2212 return COMBO_AddString(hwnd,wParam,lParam);
2213
2214 case CB_INSERTSTRING:
2215 return COMBO_InsertString(hwnd,wParam,lParam);
2216
2217 case CB_DELETESTRING:
2218 return COMBO_DeleteString(hwnd,wParam,lParam);
2219
2220 case CB_SELECTSTRING:
2221 return COMBO_SelectString(hwnd,wParam,lParam);
2222
2223 case CB_FINDSTRING:
2224 return COMBO_FindString(hwnd,wParam,lParam);
2225
2226 case CB_FINDSTRINGEXACT:
2227 return COMBO_FindStringExact(hwnd,wParam,lParam);
2228
2229 case CB_SETITEMHEIGHT:
2230 return COMBO_SetItemHeight(hwnd,wParam,lParam);
2231
2232 case CB_GETITEMHEIGHT:
2233 return COMBO_GetItemHeight(hwnd,wParam,lParam);
2234
2235 case CB_RESETCONTENT:
2236 return COMBO_ResetContent(hwnd,wParam,lParam);
2237
2238 case CB_INITSTORAGE:
2239 return COMBO_InitStorage(hwnd,wParam,lParam);
2240
2241 case CB_GETHORIZONTALEXTENT:
2242 return COMBO_GetHorizontalExtent(hwnd,wParam,lParam);
2243
2244 case CB_SETHORIZONTALEXTENT:
2245 return COMBO_SetHorizontalExtent(hwnd,wParam,lParam);
2246
2247 case CB_GETTOPINDEX:
2248 return COMBO_GetTopIndex(hwnd,wParam,lParam);
2249
2250 case CB_GETLOCALE:
2251 return COMBO_GetLocale(hwnd,wParam,lParam);
2252
2253 case CB_SETLOCALE:
2254 return COMBO_SetLocale(hwnd,wParam,lParam);
2255
2256 case CB_GETDROPPEDWIDTH:
2257 return COMBO_GetDroppedWidth(hwnd,wParam,lParam);
2258
2259 case CB_SETDROPPEDWIDTH:
2260 return COMBO_SetDroppedWidth(hwnd,wParam,lParam);
2261
2262 case CB_GETDROPPEDCONTROLRECT:
2263 return COMBO_GetDroppedControlRect(hwnd,wParam,lParam);
2264
2265 case CB_GETDROPPEDSTATE:
2266 return COMBO_GetDroppedState(hwnd,wParam,lParam);
2267
2268 case CB_DIR:
2269 return COMBO_Dir(hwnd,wParam,lParam);
2270
2271 case CB_SHOWDROPDOWN:
2272 return COMBO_ShowDropDown(hwnd,wParam,lParam);
2273
2274 case CB_GETCOUNT:
2275 return COMBO_GetCount(hwnd,wParam,lParam);
2276
2277 case CB_GETCURSEL:
2278 return COMBO_GetCurSel(hwnd,wParam,lParam);
2279
2280 case CB_SETCURSEL:
2281 return COMBO_SetCurSel(hwnd,wParam,lParam);
2282
2283 case CB_GETLBTEXT:
2284 return COMBO_GetLBText(hwnd,wParam,lParam);
2285
2286 case CB_GETLBTEXTLEN:
2287 return COMBO_GetLBTextLen(hwnd,wParam,lParam);
2288
2289 case CB_GETITEMDATA:
2290 return COMBO_GetItemData(hwnd,wParam,lParam);
2291
2292 case CB_SETITEMDATA:
2293 return COMBO_SetItemData(hwnd,wParam,lParam);
2294
2295 case CB_GETEDITSEL:
2296 return COMBO_GetEditSel(hwnd,wParam,lParam);
2297
2298 case CB_SETEDITSEL:
2299 return COMBO_SetEditSel(hwnd,wParam,lParam);
2300
2301 case CB_SETEXTENDEDUI:
2302 return COMBO_SetExtendedUI(hwnd,wParam,lParam);
2303
2304 case CB_GETEXTENDEDUI:
2305 return COMBO_GetExtendedUI(hwnd,wParam,lParam);
2306
2307 //case (WM_USER + 0x1B):
2308 // WARN("[%04x]: undocumented msg!\n", hwnd );
2309 }
2310 return DefWindowProcA(hwnd, message, wParam, lParam);
2311}
2312
2313BOOL COMBOBOX_Register()
2314{
2315 WNDCLASSA wndClass;
2316
2317//SvL: Don't check this now
2318// if (GlobalFindAtomA(COMBOBOXCLASSNAME)) return FALSE;
2319
2320 ZeroMemory(&wndClass,sizeof(WNDCLASSA));
2321 wndClass.style = CS_GLOBALCLASS | CS_PARENTDC;
2322 wndClass.lpfnWndProc = (WNDPROC)ComboWndProc;
2323 wndClass.cbClsExtra = 0;
2324 wndClass.cbWndExtra = sizeof(VOID*);
2325 wndClass.hCursor = LoadCursorA(0,IDC_ARROWA);
2326 wndClass.hbrBackground = (HBRUSH)0;
2327 wndClass.lpszClassName = COMBOBOXCLASSNAME;
2328
2329 return RegisterClassA(&wndClass);
2330}
2331
2332BOOL COMBOBOX_Unregister()
2333{
2334 if (GlobalFindAtomA(COMBOBOXCLASSNAME))
2335 return UnregisterClassA(COMBOBOXCLASSNAME,(HINSTANCE)NULL);
2336 else return FALSE;
2337}
2338
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