source: trunk/src/user32/combo.cpp@ 5157

Last change on this file since 5157 was 5157, checked in by sandervl, 25 years ago

CBCalcPlacement fix
File size: 69.2 KB
Line 
1/* $Id: combo.cpp,v 1.33 2001-02-17 20:16:31 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 * Corel version: 20000513
11 * (WINE version: 991212)
12 *
13 * Status: in progress
14 * Version: ?.??
15 */
16
17#include <string.h>
18#include <os2win.h>
19#include "controls.h"
20#include "combo.h"
21#include "initterm.h"
22
23#ifdef DEBUG
24char *GetMsgText(int Msg);
25#endif
26
27#define DBG_LOCALLOG DBG_combo
28#include "dbglocal.h"
29
30 /* bits in the dwKeyData */
31#define KEYDATA_ALT 0x2000
32#define KEYDATA_PREVSTATE 0x4000
33
34/*
35 * Additional combo box definitions
36 */
37
38#define CB_NOTIFY( lphc, code ) \
39 (SendMessageA( (lphc)->owner, WM_COMMAND, \
40 MAKEWPARAM(GetWindowLongA((lphc)->hwndself,GWL_ID), (code)), (lphc)->hwndself))
41#define CB_GETEDITTEXTLENGTH( lphc ) \
42 (SendMessageA( (lphc)->hWndEdit, WM_GETTEXTLENGTH, 0, 0 ))
43
44/*
45 * Look and feel dependant "constants"
46 */
47#define COMBO_YBORDERGAP 5
48#define COMBO_XBORDERSIZE() ( 2 )
49#define COMBO_YBORDERSIZE() ( 2 )
50#define COMBO_EDITBUTTONSPACE() ( 0 )
51#define EDIT_CONTROL_PADDING() ( 1 )
52
53/***********************************************************************
54 * COMBO_NCCreate
55 */
56static LRESULT COMBO_NCCreate(HWND hwnd,WPARAM wParam,LPARAM lParam)
57{
58 LPHEADCOMBO lphc;
59
60 if ( hwnd &&
61 (lphc = (LPHEADCOMBO)HeapAlloc(GetProcessHeap(), 0, sizeof(HEADCOMBO))) )
62 {
63 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
64 DWORD dwStyle = GetWindowLongA(hwnd,GWL_STYLE);
65 DWORD dwExStyle = GetWindowLongA(hwnd,GWL_EXSTYLE);
66
67 memset( lphc, 0, sizeof(HEADCOMBO) );
68 SetInfoPtr(hwnd,(DWORD)lphc);
69
70 /* some braindead apps do try to use scrollbar/border flags */
71
72 lphc->dwStyle = (lpcs->style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL));
73 dwStyle &= ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
74 SetWindowLongA(hwnd,GWL_STYLE,dwStyle);
75
76 /*
77 * We also have to remove the client edge style to make sure
78 * we don't end-up with a non client area.
79 */
80 dwExStyle &= ~(WS_EX_CLIENTEDGE);
81 SetWindowLongA(hwnd,GWL_EXSTYLE,dwExStyle);
82
83 if( !(lpcs->style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
84 lphc->dwStyle |= CBS_HASSTRINGS;
85 if( !(dwExStyle & WS_EX_NOPARENTNOTIFY) )
86 lphc->wState |= CBF_NOTIFY;
87
88 //TRACE("[0x%08x], style = %08x\n",
89 // (UINT)lphc, lphc->dwStyle );
90
91 return TRUE;
92 }
93 return FALSE;
94}
95
96/***********************************************************************
97 * COMBO_NCDestroy
98 */
99static LRESULT COMBO_NCDestroy(HWND hwnd,WPARAM wParam,LPARAM lParam)
100{
101 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
102
103 if( lphc )
104 {
105 //TRACE("[%04x]: freeing storage\n", CB_HWND(lphc));
106
107 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
108 DestroyWindow( lphc->hWndLBox );
109
110 HeapFree( GetProcessHeap(), 0, lphc );
111 SetInfoPtr(hwnd,0);
112 }
113
114 return DefWindowProcA(hwnd,WM_NCDESTROY,wParam,lParam);
115}
116
117/***********************************************************************
118 * CBGetTextAreaHeight
119 *
120 * This method will calculate the height of the text area of the
121 * combobox.
122 * The height of the text area is set in two ways.
123 * It can be set explicitely through a combobox message of through a
124 * WM_MEASUREITEM callback.
125 * If this is not the case, the height is set to 13 dialog units.
126 * This height was determined through experimentation.
127 */
128static INT CBGetTextAreaHeight(
129 HWND hwnd,
130 LPHEADCOMBO lphc)
131{
132 INT iTextItemHeight;
133
134 if( lphc->editHeight ) /* explicitly set height */
135 {
136 iTextItemHeight = lphc->editHeight;
137 }
138 else
139 {
140 TEXTMETRICA tm;
141 HDC hDC = GetDC(hwnd);
142 HFONT hPrevFont = 0;
143 INT baseUnitY;
144
145 if (lphc->hFont)
146 hPrevFont = SelectObject( hDC, lphc->hFont );
147
148 GetTextMetricsA(hDC, &tm);
149
150 baseUnitY = tm.tmHeight;
151
152 if( hPrevFont )
153 SelectObject( hDC, hPrevFont );
154
155 ReleaseDC(hwnd, hDC);
156
157 iTextItemHeight = ((13 * baseUnitY) / 8);
158
159 /*
160 * This "formula" calculates the height of the complete control.
161 * To calculate the height of the text area, we have to remove the
162 * borders.
163 */
164 iTextItemHeight -= 2*COMBO_YBORDERSIZE();
165 }
166
167 /*
168 * Check the ownerdraw case if we haven't asked the parent the size
169 * of the item yet.
170 */
171 if ( CB_OWNERDRAWN(lphc) &&
172 (lphc->wState & CBF_MEASUREITEM) )
173 {
174 MEASUREITEMSTRUCT measureItem;
175 RECT clientRect;
176 INT originalItemHeight = iTextItemHeight;
177
178 /*
179 * We use the client rect for the width of the item.
180 */
181 GetClientRect(hwnd, &clientRect);
182
183 lphc->wState &= ~CBF_MEASUREITEM;
184
185 /*
186 * Send a first one to measure the size of the text area
187 */
188 measureItem.CtlType = ODT_COMBOBOX;
189 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
190 measureItem.itemID = -1;
191 measureItem.itemWidth = clientRect.right;
192 measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
193 measureItem.itemData = 0;
194 SendMessageA(lphc->owner, WM_MEASUREITEM,
195 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
196 iTextItemHeight = 6 + measureItem.itemHeight;
197
198 /*
199 * Send a second one in the case of a fixed ownerdraw list to calculate the
200 * size of the list items. (we basically do this on behalf of the listbox)
201 */
202 if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
203 {
204 measureItem.CtlType = ODT_COMBOBOX;
205 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
206 measureItem.itemID = 0;
207 measureItem.itemWidth = clientRect.right;
208 measureItem.itemHeight = originalItemHeight;
209 measureItem.itemData = 0;
210 SendMessageA(lphc->owner, WM_MEASUREITEM,
211 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
212 lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
213 }
214
215 /*
216 * Keep the size for the next time
217 */
218 lphc->editHeight = iTextItemHeight;
219 }
220
221 return iTextItemHeight;
222}
223
224/***********************************************************************
225 * CBForceDummyResize
226 *
227 * The dummy resize is used for listboxes that have a popup to trigger
228 * a re-arranging of the contents of the combobox and the recalculation
229 * of the size of the "real" control window.
230 */
231static void CBForceDummyResize(
232 LPHEADCOMBO lphc)
233{
234 RECT windowRect;
235 int newComboHeight;
236
237 newComboHeight = CBGetTextAreaHeight(CB_HWND(lphc),lphc) + 2*COMBO_YBORDERSIZE();
238
239 GetWindowRect(CB_HWND(lphc), &windowRect);
240
241 /*
242 * We have to be careful, resizing a combobox also has the meaning that the
243 * dropped rect will be resized. In this case, we want to trigger a resize
244 * to recalculate layout but we don't want to change the dropped rectangle
245 * So, we pass the height of text area of control as the height.
246 * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
247 * message.
248 */
249 SetWindowPos( CB_HWND(lphc),
250 (HWND)0,
251 0, 0,
252 windowRect.right - windowRect.left,
253 newComboHeight,
254 SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
255}
256
257/***********************************************************************
258 * CBCalcPlacement
259 *
260 * Set up component coordinates given valid lphc->RectCombo.
261 */
262static void CBCalcPlacement(
263 HWND hwnd,
264 LPHEADCOMBO lphc,
265 LPRECT lprEdit,
266 LPRECT lprButton,
267 LPRECT lprLB)
268{
269#if 1
270 /*
271 * Again, start with the client rectangle.
272 */
273 GetClientRect(hwnd, lprEdit);
274
275 /*
276 * Remove the borders
277 */
278 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
279
280 /*
281 * Chop off the bottom part to fit with the height of the text area.
282 */
283 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
284
285 /*
286 * The button starts the same vertical position as the text area.
287 */
288 CopyRect(lprButton, lprEdit);
289
290 /*
291 * If the combobox is "simple" there is no button.
292 */
293 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
294 lprButton->left = lprButton->right = lprButton->bottom = 0;
295 else
296 {
297 /*
298 * Let's assume the combobox button is the same width as the
299 * scrollbar button.
300 * size the button horizontally and cut-off the text area.
301 */
302 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
303 lprEdit->right = lprButton->left;
304 }
305
306 /*
307 * In the case of a dropdown, there is an additional spacing between the
308 * text area and the button.
309 */
310 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
311 {
312 lprEdit->right -= COMBO_EDITBUTTONSPACE();
313 }
314
315 /*
316 * If we have an edit control, we space it away from the borders slightly.
317 */
318 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
319 {
320 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
321 }
322
323 /*
324 * Adjust the size of the listbox popup.
325 */
326 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
327 {
328 /*
329 * Use the client rectangle to initialize the listbox rectangle
330 */
331 GetClientRect(hwnd, lprLB);
332
333 /*
334 * Then, chop-off the top part.
335 */
336 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
337 }
338 else
339 {
340 /*
341 * Make sure the dropped width is as large as the combobox itself.
342 */
343 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
344 {
345 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
346
347 /*
348 * In the case of a dropdown, the popup listbox is offset to the right.
349 * so, we want to make sure it's flush with the right side of the
350 * combobox
351 */
352 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
353 lprLB->right -= COMBO_EDITBUTTONSPACE();
354 }
355 else
356 lprLB->right = lprLB->left + lphc->droppedWidth;
357 }
358#else
359 /*
360 * Again, start with the client rectangle.
361 */
362 GetClientRect(hwnd, lprEdit);
363
364 /*
365 * Remove the borders
366 */
367 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
368
369 /*
370 * Chop off the bottom part to fit with the height of the text area.
371 */
372 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
373
374 /*
375 * The button starts the same vertical position as the text area.
376 */
377 CopyRect(lprButton, lprEdit);
378
379 /*
380 * If the combobox is "simple" there is no button.
381 */
382 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
383 lprButton->left = lprButton->right = lprButton->bottom = 0;
384 else
385 {
386 /*
387 * Let's assume the combobox button is the same width as the
388 * scrollbar button.
389 * size the button horizontally and cut-off the text area.
390 */
391 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
392 lprEdit->right = lprButton->left;
393 }
394
395 /*
396 * In the case of a dropdown, there is an additional spacing between the
397 * text area and the button.
398 */
399 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
400 {
401 lprEdit->right -= COMBO_EDITBUTTONSPACE();
402 }
403
404 /*
405 * If we have an edit control, we space it away from the borders slightly.
406 */
407 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
408 {
409 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
410 }
411
412 /*
413 * Adjust the size of the listbox popup.
414 */
415 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
416 {
417 /*
418 * Use the client rectangle to initialize the listbox rectangle
419 */
420 GetClientRect(hwnd, lprLB);
421
422 /*
423 * Then, chop-off the top part.
424 */
425 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
426 }
427 else
428 {
429 //SvL: Listbox size might have changed!
430 if(lphc->hWndLBox)
431 GetWindowRect(lphc->hWndLBox, lprLB);
432
433 /*
434 * Make sure the dropped width is as large as the combobox itself.
435 */
436 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
437 {
438 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
439
440 /*
441 * In the case of a dropdown, the popup listbox is offset to the right.
442 * so, we want to make sure it's flush with the right side of the
443 * combobox
444 */
445 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
446 lprLB->right -= COMBO_EDITBUTTONSPACE();
447 }
448 else
449 lprLB->right = lprLB->left + lphc->droppedWidth;
450 }
451#endif
452 //TRACE("\ttext\t= (%i,%i-%i,%i)\n",
453 // lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom);
454
455 //TRACE("\tbutton\t= (%i,%i-%i,%i)\n",
456 // lprButton->left, lprButton->top, lprButton->right, lprButton->bottom);
457
458 //TRACE("\tlbox\t= (%i,%i-%i,%i)\n",
459 // lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
460}
461
462/***********************************************************************
463 * CBGetDroppedControlRect
464 */
465static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
466{
467 /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
468 of the combo box and the lower right corner of the listbox */
469
470 GetWindowRect(lphc->hwndself, lpRect);
471
472 lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
473 lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
474
475}
476
477/***********************************************************************
478 * COMBO_WindowPosChanging
479 */
480static LRESULT COMBO_WindowPosChanging(HWND hwnd,WPARAM wParam,LPARAM lParam)
481{
482 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
483 WINDOWPOS *posChanging = (WINDOWPOS*)lParam;
484
485 dprintf(("COMBO_WindowPosChanging"));
486
487 /*
488 * We need to override the WM_WINDOWPOSCHANGING method to handle all
489 * the non-simple comboboxes. The problem is that those controls are
490 * always the same height. We have to make sure they are not resized
491 * to another value.
492 */
493 if ( ( CB_GETTYPE(lphc) != CBS_SIMPLE ) &&
494 ((posChanging->flags & SWP_NOSIZE) == 0) )
495 {
496 int newComboHeight;
497
498 newComboHeight = CBGetTextAreaHeight(hwnd,lphc) +
499 2*COMBO_YBORDERSIZE();
500
501 /*
502 * Resizing a combobox has another side effect, it resizes the dropped
503 * rectangle as well. However, it does it only if the new height for the
504 * combobox is different than the height it should have. In other words,
505 * if the application resizing the combobox only had the intention to resize
506 * the actual control, for example, to do the layout of a dialog that is
507 * resized, the height of the dropdown is not changed.
508 */
509 if (posChanging->cy != newComboHeight)
510 {
511 if (posChanging->cy > newComboHeight)
512 lphc->droppedRect.bottom = lphc->droppedRect.top + posChanging->cy - newComboHeight;
513 posChanging->cy = newComboHeight;
514 }
515 }
516
517 return 0;
518}
519
520/***********************************************************************
521 * COMBO_Create
522 */
523static LRESULT COMBO_Create(HWND hwnd,WPARAM wParam,LPARAM lParam)
524{
525 static char clbName[] = "ComboLBox";
526 static char editName[] = "Edit";
527 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
528
529 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
530
531 if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
532 if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
533
534 lphc->hwndself = hwnd;
535 lphc->owner = lpcs->hwndParent;
536
537 /*
538 * The item height and dropped width are not set when the control
539 * is created.
540 */
541 lphc->droppedWidth = lphc->editHeight = 0;
542
543 /*
544 * The first time we go through, we want to measure the ownerdraw item
545 */
546 lphc->wState |= CBF_MEASUREITEM;
547
548 /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
549
550 if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
551 {
552 UINT lbeStyle = 0;
553 UINT lbeExStyle = 0;
554
555 /*
556 * Initialize the dropped rect to the size of the client area of the
557 * control and then, force all the areas of the combobox to be
558 * recalculated.
559 */
560 GetClientRect( hwnd, &lphc->droppedRect );
561
562 CBCalcPlacement(hwnd,
563 lphc,
564 &lphc->textRect,
565 &lphc->buttonRect,
566 &lphc->droppedRect );
567
568 /*
569 * Adjust the position of the popup listbox if it's necessary
570 */
571 if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
572 {
573 lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
574
575 /*
576 * If it's a dropdown, the listbox is offset
577 */
578 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
579 lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
580
581 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect);
582 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect.right);
583 }
584
585 /* create listbox popup */
586
587 lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD) |
588 (lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
589
590 if( lphc->dwStyle & CBS_SORT )
591 lbeStyle |= LBS_SORT;
592 if( lphc->dwStyle & CBS_HASSTRINGS )
593 lbeStyle |= LBS_HASSTRINGS;
594 if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
595 lbeStyle |= LBS_NOINTEGRALHEIGHT;
596 if( lphc->dwStyle & CBS_DISABLENOSCROLL )
597 lbeStyle |= LBS_DISABLENOSCROLL;
598
599 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
600 {
601 lbeStyle |= WS_VISIBLE;
602
603 /*
604 * In win 95 look n feel, the listbox in the simple combobox has
605 * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
606 */
607 lbeStyle &= ~WS_BORDER;
608 lbeExStyle |= WS_EX_CLIENTEDGE;
609 }
610
611 lphc->hWndLBox = CreateWindowExA(lbeExStyle,
612 clbName,
613 NULL,
614 lbeStyle,
615 lphc->droppedRect.left,
616 lphc->droppedRect.top,
617 lphc->droppedRect.right - lphc->droppedRect.left,
618 lphc->droppedRect.bottom - lphc->droppedRect.top,
619 lphc->hwndself,
620 (HMENU)ID_CB_LISTBOX,
621 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
622 (LPVOID)lphc );
623
624 if( lphc->hWndLBox )
625 {
626 BOOL bEdit = TRUE;
627 lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT | ES_COMBO;
628
629 /*
630 * In Win95 look, the border fo the edit control is
631 * provided by the combobox
632 */
633 if( lphc->wState & CBF_EDIT )
634 {
635 if( lphc->dwStyle & CBS_OEMCONVERT )
636 lbeStyle |= ES_OEMCONVERT;
637 if( lphc->dwStyle & CBS_AUTOHSCROLL )
638 lbeStyle |= ES_AUTOHSCROLL;
639 if( lphc->dwStyle & CBS_LOWERCASE )
640 lbeStyle |= ES_LOWERCASE;
641 else if( lphc->dwStyle & CBS_UPPERCASE )
642 lbeStyle |= ES_UPPERCASE;
643
644 lphc->hWndEdit = CreateWindowExA(0,
645 editName,
646 NULL,
647 lbeStyle,
648 lphc->textRect.left, lphc->textRect.top,
649 lphc->textRect.right - lphc->textRect.left,
650 lphc->textRect.bottom - lphc->textRect.top,
651 lphc->hwndself,
652 (HMENU)ID_CB_EDIT,
653 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
654 NULL );
655
656 if( !lphc->hWndEdit )
657 bEdit = FALSE;
658 }
659
660 if( bEdit )
661 {
662 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
663 {
664 /* Now do the trick with parent */
665 SetParent(lphc->hWndLBox, HWND_DESKTOP);
666
667 /*
668 * If the combo is a dropdown, we must resize the control to fit only
669 * the text area and button. To do this, we send a dummy resize and the
670 * WM_WINDOWPOSCHANGING message will take care of setting the height for
671 * us.
672 */
673
674 CBForceDummyResize(lphc);
675 }
676
677 //TRACE("init done\n");
678 return hwnd;
679 }
680 //ERR("edit control failure.\n");
681 } //else ERR("listbox failure.\n");
682 } //else ERR("no owner for visible combo.\n");
683
684 /* CreateWindow() will send WM_NCDESTROY to cleanup */
685
686 return -1;
687}
688
689/***********************************************************************
690 * CBPaintButton
691 *
692 * Paint combo button (normal, pressed, and disabled states).
693 */
694static void CBPaintButton(
695 LPHEADCOMBO lphc,
696 HDC hdc,
697 RECT rectButton)
698{
699 if( lphc->wState & CBF_NOREDRAW )
700 return;
701
702
703 UINT buttonState = DFCS_SCROLLCOMBOBOX;
704
705 if (lphc->wState & CBF_BUTTONDOWN)
706 {
707 buttonState |= DFCS_PUSHED;
708 }
709
710 if (CB_DISABLED(lphc))
711 {
712 buttonState |= DFCS_INACTIVE;
713 }
714
715 DrawFrameControl(hdc,&rectButton,DFC_SCROLL,buttonState);
716}
717
718/***********************************************************************
719 * CBPaintText
720 *
721 * Paint CBS_DROPDOWNLIST text field / update edit control contents.
722 */
723static void CBPaintText(
724 LPHEADCOMBO lphc,
725 HDC hdc,
726 RECT rectEdit)
727{
728 INT id, size = 0;
729 LPSTR pText = NULL;
730
731 if( lphc->wState & CBF_NOREDRAW ) return;
732
733 /* follow Windows combobox that sends a bunch of text
734 * inquiries to its listbox while processing WM_PAINT. */
735
736 if( (id = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
737 {
738 size = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
739 if( (pText = (char*)HeapAlloc( GetProcessHeap(), 0, size + 1)) != NULL )
740 {
741 SendMessageA( lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText );
742 pText[size] = '\0'; /* just in case */
743 } else return;
744 }
745
746 if( lphc->wState & CBF_EDIT )
747 {
748 if( CB_HASSTRINGS(lphc) ) SetWindowTextA( lphc->hWndEdit, pText ? pText : "" );
749 if( lphc->wState & CBF_FOCUSED )
750 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
751 }
752 else /* paint text field ourselves */
753 {
754 UINT itemState;
755 HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
756
757 /*
758 * Give ourselves some space.
759 */
760 InflateRect( &rectEdit, -1, -1 );
761
762 if ( (lphc->wState & CBF_FOCUSED) &&
763 !(lphc->wState & CBF_DROPPED) )
764 {
765 /* highlight */
766
767 FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
768 SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
769 SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
770 itemState = ODS_SELECTED | ODS_FOCUS;
771 }
772 else
773 itemState = 0;
774
775 if( CB_OWNERDRAWN(lphc) )
776 {
777 DRAWITEMSTRUCT dis;
778 HRGN clipRegion;
779 DWORD dwStyle = GetWindowLongA(lphc->hwndself,GWL_STYLE);
780
781 /*
782 * Save the current clip region.
783 * To retrieve the clip region, we need to create one "dummy"
784 * clip region.
785 */
786 clipRegion = CreateRectRgnIndirect(&rectEdit);
787
788 if (GetClipRgn(hdc, clipRegion)!=1)
789 {
790 DeleteObject(clipRegion);
791 clipRegion=(HRGN)NULL;
792 }
793
794 if ( dwStyle & WS_DISABLED )
795 itemState |= ODS_DISABLED;
796
797 dis.CtlType = ODT_COMBOBOX;
798 dis.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
799 dis.hwndItem = lphc->hwndself;
800 dis.itemAction = ODA_DRAWENTIRE;
801 dis.itemID = id;
802 dis.itemState = itemState | ODS_COMBOBOXEDIT;
803 dis.hDC = hdc;
804 dis.rcItem = rectEdit;
805 dis.itemData = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA,
806 (WPARAM)id, 0 );
807
808 /*
809 * Clip the DC and have the parent draw the item.
810 */
811 IntersectClipRect(hdc,
812 rectEdit.left, rectEdit.top,
813 rectEdit.right, rectEdit.bottom);
814
815 SendMessageA(lphc->owner, WM_DRAWITEM,
816 GetWindowLongA(lphc->hwndself,GWL_ID), (LPARAM)&dis );
817
818 /*
819 * Reset the clipping region.
820 */
821 SelectClipRgn(hdc, clipRegion);
822 }
823 else
824 {
825 ExtTextOutA( hdc,
826 rectEdit.left + 1,
827 rectEdit.top + 1,
828 ETO_OPAQUE | ETO_CLIPPED,
829 &rectEdit,
830 pText ? pText : "" , size, NULL );
831
832 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
833 DrawFocusRect( hdc, &rectEdit );
834 }
835
836 if( hPrevFont )
837 SelectObject(hdc, hPrevFont );
838 }
839 if (pText)
840 HeapFree( GetProcessHeap(), 0, pText );
841}
842
843/***********************************************************************
844 * CBPaintBorder
845 */
846static void CBPaintBorder(
847 HWND hwnd,
848 LPHEADCOMBO lphc,
849 HDC hdc)
850{
851 RECT clientRect;
852
853 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
854 {
855 GetClientRect(hwnd, &clientRect);
856 }
857 else
858 {
859 CopyRect(&clientRect, &lphc->textRect);
860
861 InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
862 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
863 }
864
865 DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
866}
867
868/***********************************************************************
869 * COMBO_PrepareColors
870 *
871 * This method will sent the appropriate WM_CTLCOLOR message to
872 * prepare and setup the colors for the combo's DC.
873 *
874 * It also returns the brush to use for the background.
875 */
876static HBRUSH COMBO_PrepareColors(
877 HWND hwnd,
878 LPHEADCOMBO lphc,
879 HDC hDC)
880{
881 HBRUSH hBkgBrush;
882
883 /*
884 * Get the background brush for this control.
885 */
886 if (CB_DISABLED(lphc))
887 {
888 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORSTATIC,
889 hDC, lphc->hwndself );
890
891 /*
892 * We have to change the text color since WM_CTLCOLORSTATIC will
893 * set it to the "enabled" color. This is the same behavior as the
894 * edit control
895 */
896 SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
897 }
898 else
899 {
900 if (lphc->wState & CBF_EDIT)
901 {
902 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLOREDIT,
903 hDC, lphc->hwndself );
904 }
905 else
906 {
907 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
908 hDC, lphc->hwndself );
909 }
910 }
911
912 /*
913 * Catch errors.
914 */
915 if( !hBkgBrush )
916 hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
917
918 return hBkgBrush;
919}
920
921/***********************************************************************
922 * COMBO_EraseBackground
923 */
924static LRESULT COMBO_EraseBackground(HWND hwnd,WPARAM wParam,LPARAM lParam)
925{
926 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
927 HBRUSH hBkgBrush;
928 RECT clientRect;
929 HDC hDC;
930
931 hDC = (wParam) ? (HDC)wParam:GetDC(hwnd);
932
933 /*
934 * Calculate the area that we want to erase.
935 */
936 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
937 {
938 GetClientRect(hwnd, &clientRect);
939 }
940 else
941 {
942 CopyRect(&clientRect, &lphc->textRect);
943
944 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
945 }
946
947 /*
948 * Retrieve the background brush
949 */
950 hBkgBrush = COMBO_PrepareColors(hwnd, lphc, hDC);
951
952 FillRect(hDC, &clientRect, hBkgBrush);
953
954 if (!wParam)
955 ReleaseDC(hwnd, hDC);
956
957 return TRUE;
958}
959
960static LRESULT COMBO_GetDlgCode(HWND hwnd,WPARAM wParam,LPARAM lParam)
961{
962 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
963 LRESULT result = DLGC_WANTARROWS | DLGC_WANTCHARS;
964
965 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
966 {
967 int vk = (int)((LPMSG)lParam)->wParam;
968
969 if ((vk == VK_RETURN || vk == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
970 result |= DLGC_WANTMESSAGE;
971 }
972 return result;
973}
974
975/***********************************************************************
976 * COMBO_Paint
977 */
978static LRESULT COMBO_Paint(HWND hwnd,WPARAM wParam,LPARAM lParam)
979{
980 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
981 PAINTSTRUCT ps;
982 HDC hDC;
983
984 hDC = (wParam) ? (HDC)wParam:BeginPaint(hwnd,&ps);
985
986
987 if( hDC && !(lphc->wState & CBF_NOREDRAW) )
988 {
989 HBRUSH hPrevBrush, hBkgBrush;
990
991 /*
992 * Retrieve the background brush and select it in the
993 * DC.
994 */
995 hBkgBrush = COMBO_PrepareColors(hwnd,lphc,hDC);
996
997 hPrevBrush = SelectObject( hDC, hBkgBrush );
998
999 /*
1000 * In non 3.1 look, there is a sunken border on the combobox
1001 */
1002 CBPaintBorder(CB_HWND(lphc), lphc, hDC);
1003
1004 if( !IsRectEmpty(&lphc->buttonRect) )
1005 {
1006 CBPaintButton(lphc, hDC, lphc->buttonRect);
1007 }
1008
1009 if( !(lphc->wState & CBF_EDIT) )
1010 {
1011 /*
1012 * The text area has a border only in Win 3.1 look.
1013 */
1014
1015 CBPaintText( lphc, hDC, lphc->textRect);
1016 }
1017
1018 if( hPrevBrush )
1019 SelectObject( hDC, hPrevBrush );
1020 }
1021
1022 if(!wParam) EndPaint(hwnd,&ps);
1023
1024 return 0;
1025}
1026
1027static LRESULT COMBO_PrintClient(HWND hwnd,WPARAM wParam,LPARAM lParam)
1028{
1029 if (lParam & PRF_ERASEBKGND) COMBO_EraseBackground(hwnd,wParam,lParam);
1030
1031 return COMBO_Paint(hwnd,wParam,lParam);
1032}
1033
1034/***********************************************************************
1035 * CBUpdateLBox
1036 *
1037 * Select listbox entry according to the contents of the edit control.
1038 */
1039static INT CBUpdateLBox( LPHEADCOMBO lphc, BOOL bSelect )
1040{
1041 INT length, idx;
1042 LPSTR pText = NULL;
1043
1044 idx = LB_ERR;
1045 length = CB_GETEDITTEXTLENGTH( lphc );
1046
1047 if( length > 0 )
1048 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1049
1050 //TRACE("\t edit text length %i\n", length );
1051
1052 if( pText )
1053 {
1054 if( length ) GetWindowTextA( lphc->hWndEdit, pText, length + 1);
1055 else pText[0] = '\0';
1056 idx = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
1057 (WPARAM)(-1), (LPARAM)pText );
1058 HeapFree( GetProcessHeap(), 0, pText );
1059 }
1060
1061 SendMessageA( lphc->hWndLBox, LB_SETCURSEL, (WPARAM)(bSelect ? idx : -1), 0 );
1062
1063 /* the LB_SETCARETINDEX message should scroll the list box if required
1064 and sending LB_SETTOPINDEX can generate annoying behaviors */
1065 /* probably superfluous but Windows sends this too */
1066 SendMessageA( lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0 );
1067 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0 );
1068
1069 return idx;
1070}
1071
1072/***********************************************************************
1073 * CBUpdateEdit
1074 *
1075 * Copy a listbox entry to the edit control.
1076 */
1077static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
1078{
1079 INT length;
1080 LPSTR pText = NULL;
1081
1082 //TRACE("\t %i\n", index );
1083
1084 if( index >= 0 ) /* got an entry */
1085 {
1086 length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
1087 if( length )
1088 {
1089 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1090 if(pText)
1091 {
1092 SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1093 (WPARAM)index, (LPARAM)pText );
1094 }
1095 }
1096 }
1097 lphc->wState |= CBF_NOEDITNOTIFY;
1098
1099 SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)"" );
1100
1101 lphc->wState &= ~CBF_NOEDITNOTIFY;
1102
1103 if( lphc->wState & CBF_FOCUSED )
1104 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1105
1106
1107 if( pText )
1108 HeapFree( GetProcessHeap(), 0, pText );
1109}
1110
1111/***********************************************************************
1112 * CBDropDown
1113 *
1114 * Show listbox popup.
1115 */
1116static void CBDropDown( LPHEADCOMBO lphc )
1117{
1118 RECT rect;
1119 int nItems = 0;
1120 int nDroppedHeight;
1121
1122 HWND hWnd = 0;
1123 RECT DesktopRect;
1124
1125 //TRACE("[%04x]: drop down\n", CB_HWND(lphc));
1126
1127 CB_NOTIFY( lphc, CBN_DROPDOWN );
1128
1129 /* set selection */
1130
1131 lphc->wState |= CBF_DROPPED;
1132 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1133 {
1134 lphc->droppedIndex = CBUpdateLBox( lphc,TRUE );
1135
1136 if( !(lphc->wState & CBF_CAPTURE) )
1137 CBUpdateEdit( lphc, lphc->droppedIndex );
1138 }
1139 else
1140 {
1141 lphc->droppedIndex = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1142
1143 if( lphc->droppedIndex == LB_ERR )
1144 lphc->droppedIndex = 0;
1145
1146 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX,
1147 (WPARAM)(lphc->droppedIndex == LB_ERR ? 0 : lphc->droppedIndex), 0 );
1148 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1149 }
1150
1151 /* now set popup position */
1152 GetWindowRect( lphc->hwndself, &rect );
1153
1154 /*
1155 * If it's a dropdown, the listbox is offset
1156 */
1157 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1158 rect.left += COMBO_EDITBUTTONSPACE();
1159
1160 /* if the dropped height is greater than the total height of the dropped
1161 items list, then force the drop down list height to be the total height
1162 of the items in the dropped list */
1163
1164 /* And Remove any extra space (Best Fit) */
1165 nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
1166 nItems = (int)SendMessageA (lphc->hWndLBox, LB_GETCOUNT, 0, 0);
1167
1168 if (nItems > 0)
1169 {
1170 int nHeight;
1171
1172 nHeight = (int)SendMessageA (lphc->hWndLBox, LB_GETITEMHEIGHT, 0, 0);
1173 nHeight *= nItems;
1174
1175 if (nHeight < nDroppedHeight - COMBO_YBORDERSIZE())
1176 nDroppedHeight = nHeight + COMBO_YBORDERSIZE();
1177 }
1178
1179 /*Now we should know screen size. */
1180 hWnd = GetDesktopWindow();
1181
1182 if( hWnd )
1183 {
1184 GetClientRect( hWnd, &DesktopRect );
1185 }
1186
1187
1188 /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
1189 if((rect.bottom + nDroppedHeight) >= DesktopRect.bottom)
1190 rect.bottom = rect.top - nDroppedHeight;
1191
1192 SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.bottom,
1193 lphc->droppedRect.right - lphc->droppedRect.left,
1194 nDroppedHeight,
1195 SWP_NOACTIVATE | SWP_SHOWWINDOW);
1196
1197
1198 if( !(lphc->wState & CBF_NOREDRAW) )
1199 RedrawWindow( lphc->hwndself, NULL, 0, RDW_INVALIDATE |
1200 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1201
1202 EnableWindow( lphc->hWndLBox, TRUE );
1203 if (GetCapture() != lphc->hwndself)
1204 SetCapture(lphc->hWndLBox);
1205}
1206
1207/***********************************************************************
1208 * CBRollUp
1209 *
1210 * Hide listbox popup.
1211 */
1212static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
1213{
1214 HWND hWnd = lphc->hwndself;
1215
1216 CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
1217
1218 if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
1219 {
1220
1221 //TRACE("[%04x]: roll up [%i]\n", CB_HWND(lphc), (INT)ok );
1222
1223 if( lphc->wState & CBF_DROPPED )
1224 {
1225 RECT rect;
1226
1227 lphc->wState &= ~CBF_DROPPED;
1228 /* By hiding the window, the capture by lphc->hWndLBox will be released too */
1229
1230 ShowWindow( lphc->hWndLBox, SW_HIDE );
1231
1232 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1233 {
1234 rect = lphc->buttonRect;
1235 }
1236 else
1237 {
1238 if( bButton )
1239 {
1240 UnionRect( &rect,
1241 &lphc->buttonRect,
1242 &lphc->textRect);
1243 }
1244 else
1245 rect = lphc->textRect;
1246
1247 bButton = TRUE;
1248 }
1249
1250 if( bButton && !(lphc->wState & CBF_NOREDRAW) )
1251 RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
1252 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1253 CB_NOTIFY( lphc, CBN_CLOSEUP );
1254 }
1255 }
1256}
1257
1258/***********************************************************************
1259 * COMBO_FlipListbox
1260 *
1261 * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
1262 */
1263BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL ok, BOOL bRedrawButton )
1264{
1265 if( lphc->wState & CBF_DROPPED )
1266 {
1267 CBRollUp( lphc, ok, bRedrawButton );
1268 return FALSE;
1269 }
1270
1271 CBDropDown( lphc );
1272 return TRUE;
1273}
1274
1275/***********************************************************************
1276 * CBRepaintButton
1277 */
1278static void CBRepaintButton( LPHEADCOMBO lphc )
1279 {
1280 InvalidateRect(CB_HWND(lphc), &lphc->buttonRect, TRUE);
1281 UpdateWindow(CB_HWND(lphc));
1282}
1283
1284static VOID COMBO_EditSetFocus(LPHEADCOMBO lphc)
1285{
1286 if(!(lphc->wState & CBF_FOCUSED))
1287 {
1288 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1289 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1290
1291 lphc->wState |= CBF_FOCUSED;
1292
1293 if( !(lphc->wState & CBF_EDIT) )
1294 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1295
1296 CB_NOTIFY( lphc, CBN_SETFOCUS );
1297 }
1298}
1299
1300/***********************************************************************
1301 * COMBO_SetFocus
1302 */
1303static LRESULT COMBO_SetFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1304{
1305 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1306
1307//SvL: This doesn't work. Example:
1308// Click on combo box in Abiword (when it doesn't have the focus)
1309// COMBO_LButtonDown checks focus, not set -> SetFocus to combo box
1310// Next thing it does is check if it has the focus (CBF_FOCUSED flag).
1311// This check fails as SetFocus(lphc->hWndEdit) doesn't change this flag.
1312// Removing this check doesn't work as the listbox is not removed after it
1313// loses the focus.
1314// if(lphc->wState & CBF_EDIT)
1315// SetFocus(lphc->hWndEdit);
1316// else
1317 COMBO_EditSetFocus(lphc);
1318
1319 return 0;
1320}
1321
1322static VOID COMBO_EditKillFocus(LPHEADCOMBO lphc)
1323{
1324 if( lphc->wState & CBF_FOCUSED )
1325 {
1326 CBRollUp( lphc, FALSE, TRUE );
1327 if( IsWindow( lphc->hwndself ) )
1328 {
1329 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1330 SendMessageA( lphc->hWndLBox, LB_CARETOFF, 0, 0 );
1331
1332 lphc->wState &= ~CBF_FOCUSED;
1333
1334 /* redraw text */
1335 if( !(lphc->wState & CBF_EDIT) )
1336 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1337
1338 CB_NOTIFY( lphc, CBN_KILLFOCUS );
1339 }
1340 }
1341}
1342
1343/***********************************************************************
1344 * COMBO_KillFocus
1345 */
1346static LRESULT COMBO_KillFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1347{
1348 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1349
1350 if(!wParam || (wParam != lphc->hWndEdit && wParam != lphc->hWndLBox ))
1351 {
1352 COMBO_EditKillFocus(lphc);
1353 }
1354
1355 return 0;
1356}
1357
1358/***********************************************************************
1359 * COMBO_Command
1360 */
1361static LRESULT COMBO_Command(HWND hwnd,WPARAM wParam,LPARAM lParam)
1362{
1363 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1364
1365 if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == lParam )
1366 {
1367 /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
1368
1369 switch( HIWORD(wParam) >> 8 )
1370 {
1371 case (EN_SETFOCUS >> 8):
1372
1373 //TRACE("[%04x]: edit [%04x] got focus\n",
1374 // CB_HWND(lphc), lphc->hWndEdit );
1375
1376 COMBO_EditSetFocus(lphc);
1377 break;
1378
1379 case (EN_KILLFOCUS >> 8):
1380
1381 //TRACE("[%04x]: edit [%04x] lost focus\n",
1382 // CB_HWND(lphc), lphc->hWndEdit );
1383
1384 /* NOTE: it seems that Windows' edit control sends an
1385 * undocumented message WM_USER + 0x1B instead of this
1386 * notification (only when it happens to be a part of
1387 * the combo). ?? - AK.
1388 */
1389
1390 COMBO_EditKillFocus(lphc);
1391 break;
1392
1393
1394 case (EN_CHANGE >> 8):
1395 /*
1396 * In some circumstances (when the selection of the combobox
1397 * is changed for example) we don't wans the EN_CHANGE notification
1398 * to be forwarded to the parent of the combobox. This code
1399 * checks a flag that is set in these occasions and ignores the
1400 * notification.
1401 */
1402 if (lphc->wState & CBF_NOEDITNOTIFY)
1403 {
1404 lphc->wState &= ~CBF_NOEDITNOTIFY;
1405 }
1406 else
1407 {
1408 CB_NOTIFY( lphc, CBN_EDITCHANGE );
1409 }
1410
1411 if (lphc->wState & CBF_NOLBSELECT)
1412 {
1413 lphc->wState &= ~CBF_NOLBSELECT;
1414 }
1415 else
1416 {
1417 CBUpdateLBox( lphc, lphc->wState & CBF_DROPPED );
1418 }
1419 break;
1420
1421 case (EN_UPDATE >> 8):
1422 //SvL: Don't send updates either. (Realplayer 7 infinite loops)
1423 //CB: note: EN_UPDATE changes in Corel 20000317
1424 /*
1425 * In some circumstances (when the selection of the combobox
1426 * is changed for example) we don't wans the EN_CHANGE notification
1427 * to be forwarded to the parent of the combobox. This code
1428 * checks a flag that is set in these occasions and ignores the
1429 * notification.
1430 */
1431 if (lphc->wState & CBF_NOEDITNOTIFY)
1432 {
1433 lphc->wState &= ~CBF_NOEDITNOTIFY;
1434 }
1435 else
1436 {
1437 CB_NOTIFY( lphc, CBN_EDITUPDATE );
1438 }
1439 break;
1440
1441 case (EN_ERRSPACE >> 8):
1442 CB_NOTIFY( lphc, CBN_ERRSPACE );
1443 }
1444 }
1445 else if( lphc->hWndLBox == lParam )
1446 {
1447 switch( HIWORD(wParam) )
1448 {
1449 case LBN_ERRSPACE:
1450 CB_NOTIFY( lphc, CBN_ERRSPACE );
1451 break;
1452
1453 case LBN_DBLCLK:
1454 CB_NOTIFY( lphc, CBN_DBLCLK );
1455 break;
1456
1457 case LBN_SELCHANGE:
1458 case LBN_SELCANCEL:
1459
1460 //TRACE("[%04x]: lbox selection change [%04x]\n",
1461 // CB_HWND(lphc), lphc->wState );
1462
1463 /* do not roll up if selection is being tracked
1464 * by arrowkeys in the dropdown listbox */
1465
1466 if( (CB_GETTYPE(lphc) == CBS_SIMPLE) ||
1467 ((lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP)) )
1468 {
1469 CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
1470 }
1471 else lphc->wState &= ~CBF_NOROLLUP;
1472
1473 CB_NOTIFY( lphc, CBN_SELCHANGE );
1474
1475 if( HIWORD(wParam) == LBN_SELCHANGE)
1476 {
1477 if( lphc->wState & CBF_EDIT )
1478 {
1479 INT index = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1480
1481 lphc->wState |= CBF_NOLBSELECT;
1482 CBUpdateEdit( lphc, index );
1483 /* select text in edit, as Windows does */
1484 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1485 }
1486 else
1487 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1488 }
1489
1490 /* fall through */
1491
1492 case LBN_SETFOCUS:
1493 case LBN_KILLFOCUS:
1494 /* nothing to do here since ComboLBox always resets the focus to its
1495 * combo/edit counterpart */
1496 break;
1497 }
1498 }
1499 return 0;
1500}
1501
1502/***********************************************************************
1503 * COMBO_HandleItem
1504 *
1505 * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
1506 */
1507static LRESULT COMBO_HandleItem(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
1508{
1509 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1510
1511 //TRACE("[%04x]: ownerdraw op %04x\n", CB_HWND(lphc), msg );
1512
1513#define lpIS ((LPDELETEITEMSTRUCT)lParam)
1514
1515 /* two first items are the same in all 4 structs */
1516 lpIS->CtlType = ODT_COMBOBOX;
1517 lpIS->CtlID = GetWindowLongA(hwnd,GWL_ID);
1518
1519 switch( msg ) /* patch window handle */
1520 {
1521 case WM_DELETEITEM:
1522 lpIS->hwndItem = hwnd;
1523#undef lpIS
1524 break;
1525 case WM_DRAWITEM:
1526#define lpIS ((LPDRAWITEMSTRUCT)lParam)
1527 lpIS->hwndItem = hwnd;
1528#undef lpIS
1529 break;
1530 case WM_COMPAREITEM:
1531#define lpIS ((LPCOMPAREITEMSTRUCT)lParam)
1532 lpIS->hwndItem = hwnd;
1533#undef lpIS
1534 break;
1535 }
1536 return SendMessageA( GetParent(hwnd), msg, GetWindowLongA(hwnd,GWL_ID), lParam );
1537}
1538
1539/***********************************************************************
1540 * COMBO_GetText
1541 */
1542static LRESULT COMBO_GetText(HWND hwnd,WPARAM wParam,LPARAM lParam)
1543{
1544 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1545
1546 if( lphc->wState & CBF_EDIT )
1547 return SendMessageA( lphc->hWndEdit, WM_GETTEXT,
1548 wParam,lParam);
1549
1550 /* get it from the listbox */
1551
1552 if( lphc->hWndLBox )
1553 {
1554 INT idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1555 if( idx != LB_ERR )
1556 {
1557 LPSTR lpBuffer;
1558 INT length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN,
1559 (WPARAM)idx, 0 );
1560
1561 /* 'length' is without the terminating character */
1562 if( length >= (UINT)wParam )
1563 lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
1564 else
1565 lpBuffer = (LPSTR)lParam;
1566
1567 if( lpBuffer )
1568 {
1569 INT n = SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1570 (WPARAM)idx, (LPARAM)lpBuffer );
1571
1572 /* truncate if buffer is too short */
1573
1574 if( length >= (UINT)wParam )
1575 {
1576 if ((UINT)wParam && lParam) {
1577 if( n != LB_ERR ) memcpy( (LPSTR)lParam, lpBuffer, ((UINT)wParam>n) ? n+1 : (UINT)wParam-1 );
1578 ((LPSTR)lParam)[(UINT)wParam - 1] = '\0';
1579 }
1580 HeapFree( GetProcessHeap(), 0, lpBuffer );
1581 }
1582 return (LRESULT)n;
1583 }
1584 }
1585 }
1586 return 0;
1587}
1588
1589static LRESULT COMBO_GetTextLength(HWND hwnd,WPARAM wParam,LPARAM lParam)
1590{
1591 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1592
1593 if (!(lphc->wState & CBF_EDIT))
1594 {
1595 int idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1596
1597 if (idx == -1) return 0;
1598 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
1599 } else if (lphc->wState & CBF_EDIT)
1600 {
1601 /* Don't bother turning on CBF_NOEDITNOTIFY. */
1602 return SendMessageA( lphc->hWndEdit, WM_GETTEXTLENGTH, wParam, lParam );
1603 } else return CB_ERR;
1604}
1605
1606static LRESULT COMBO_HandleText(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1607{
1608 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1609
1610 if (lphc == NULL)
1611 {
1612 dprintf(("COMBO_HandleText Info Pointer NULL!\n"));
1613 return CB_ERR;
1614 }
1615
1616 if (lphc->wState & CBF_EDIT)
1617 {
1618 LRESULT res;
1619
1620 lphc->wState |= CBF_NOEDITNOTIFY;
1621 res = SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1622 lphc->wState &= ~CBF_NOEDITNOTIFY;
1623 return res;
1624 } else return CB_ERR;
1625}
1626
1627/***********************************************************************
1628 * CBResetPos
1629 *
1630 * This function sets window positions according to the updated
1631 * component placement struct.
1632 */
1633static void CBResetPos(
1634 LPHEADCOMBO lphc,
1635 LPRECT rectEdit,
1636 LPRECT rectLB,
1637 BOOL bRedraw)
1638{
1639 BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1640
1641 /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1642 * sizing messages */
1643
1644 if( lphc->wState & CBF_EDIT )
1645 SetWindowPos( lphc->hWndEdit, 0,
1646 rectEdit->left, rectEdit->top,
1647 rectEdit->right - rectEdit->left,
1648 rectEdit->bottom - rectEdit->top,
1649 SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1650
1651 SetWindowPos( lphc->hWndLBox, 0,
1652 rectLB->left, rectLB->top,
1653 rectLB->right - rectLB->left,
1654 rectLB->bottom - rectLB->top,
1655 SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1656
1657 if( bDrop )
1658 {
1659 if( lphc->wState & CBF_DROPPED )
1660 {
1661 lphc->wState &= ~CBF_DROPPED;
1662 ShowWindow( lphc->hWndLBox, SW_HIDE );
1663 }
1664
1665 if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1666 RedrawWindow( lphc->hwndself, NULL, 0,
1667 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1668 }
1669}
1670
1671
1672/***********************************************************************
1673 * COMBO_Size
1674 */
1675static LRESULT COMBO_Size(HWND hwnd,WPARAM wParam,LPARAM lParam)
1676{
1677 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1678
1679 dprintf(("COMBO_Size"));
1680
1681 if(lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
1682 {
1683 CBCalcPlacement(hwnd,
1684 lphc,
1685 &lphc->textRect,
1686 &lphc->buttonRect,
1687 &lphc->droppedRect);
1688
1689 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1690 }
1691
1692 return 0;
1693}
1694
1695
1696/***********************************************************************
1697 * COMBO_Font
1698 */
1699static LRESULT COMBO_SetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1700{
1701 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1702
1703 /*
1704 * Set the font
1705 */
1706 lphc->hFont = wParam;
1707
1708 /*
1709 * Propagate to owned windows.
1710 */
1711 if( lphc->wState & CBF_EDIT )
1712 SendMessageA(lphc->hWndEdit,WM_SETFONT,wParam,lParam);
1713 SendMessageA(lphc->hWndLBox,WM_SETFONT,wParam,lParam);
1714
1715 /*
1716 * Redo the layout of the control.
1717 */
1718 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1719 {
1720 CBCalcPlacement(hwnd,
1721 lphc,
1722 &lphc->textRect,
1723 &lphc->buttonRect,
1724 &lphc->droppedRect);
1725
1726 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1727 }
1728 else
1729 {
1730 CBForceDummyResize(lphc);
1731 }
1732
1733 return 0;
1734}
1735
1736static LRESULT COMBO_GetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1737{
1738 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1739
1740 return lphc->hFont;
1741}
1742
1743
1744/***********************************************************************
1745 * COMBO_LButtonDown
1746 */
1747static LRESULT COMBO_LButtonDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1748{
1749 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1750 POINT pt;
1751 BOOL bButton;
1752
1753 if(!(lphc->wState & CBF_FOCUSED)) SetFocus(hwnd);
1754 if(!(lphc->wState & CBF_FOCUSED)) return 0;
1755
1756 pt.x = LOWORD(lParam);
1757 pt.y = HIWORD(lParam);
1758 bButton = PtInRect(&lphc->buttonRect, pt);
1759
1760 if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1761 (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1762 {
1763 lphc->wState |= CBF_BUTTONDOWN;
1764 if( lphc->wState & CBF_DROPPED )
1765 {
1766 /* got a click to cancel selection */
1767
1768 lphc->wState &= ~CBF_BUTTONDOWN;
1769 CBRollUp( lphc, TRUE, FALSE );
1770 if( !IsWindow( hwnd ) ) return 0;
1771
1772 if( lphc->wState & CBF_CAPTURE )
1773 {
1774 lphc->wState &= ~CBF_CAPTURE;
1775 ReleaseCapture();
1776 }
1777 }
1778 else
1779 {
1780 /* drop down the listbox and start tracking */
1781
1782 lphc->wState |= CBF_CAPTURE;
1783 SetCapture( hwnd );
1784 CBDropDown( lphc );
1785 }
1786 if( bButton ) CBRepaintButton( lphc );
1787 }
1788
1789 return 0;
1790}
1791
1792/***********************************************************************
1793 * COMBO_LButtonUp
1794 *
1795 * Release capture and stop tracking if needed.
1796 */
1797static LRESULT COMBO_LButtonUp(HWND hwnd,WPARAM wParam,LPARAM lParam)
1798{
1799 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1800
1801 if( lphc->wState & CBF_CAPTURE )
1802 {
1803 lphc->wState &= ~CBF_CAPTURE;
1804 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1805 {
1806 INT index = CBUpdateLBox( lphc, TRUE );
1807
1808 lphc->wState |= CBF_NOLBSELECT;
1809 CBUpdateEdit( lphc, index );
1810 lphc->wState &= ~CBF_NOLBSELECT;
1811 }
1812 SetCapture(lphc->hWndLBox);
1813 }
1814
1815 if( lphc->wState & CBF_BUTTONDOWN )
1816 {
1817 lphc->wState &= ~CBF_BUTTONDOWN;
1818 CBRepaintButton( lphc );
1819 }
1820
1821 return 0;
1822}
1823
1824/***********************************************************************
1825 * COMBO_MouseMove
1826 *
1827 * Two things to do - track combo button and release capture when
1828 * pointer goes into the listbox.
1829 */
1830static LRESULT COMBO_MouseMove(HWND hwnd,WPARAM wParam,LPARAM lParam)
1831{
1832 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1833 POINT pt;
1834 RECT lbRect;
1835
1836 if(!(lphc->wState & CBF_CAPTURE)) return 0;
1837
1838 pt.x = LOWORD(lParam);
1839 pt.y = HIWORD(lParam);
1840
1841 if( lphc->wState & CBF_BUTTONDOWN )
1842 {
1843 BOOL bButton;
1844
1845 bButton = PtInRect(&lphc->buttonRect, pt);
1846
1847 if( !bButton )
1848 {
1849 lphc->wState &= ~CBF_BUTTONDOWN;
1850 CBRepaintButton( lphc );
1851 }
1852 }
1853
1854 GetClientRect( lphc->hWndLBox, &lbRect );
1855 MapWindowPoints(hwnd, lphc->hWndLBox, &pt, 1 );
1856 if( PtInRect(&lbRect, pt) )
1857 {
1858 lphc->wState &= ~CBF_CAPTURE;
1859 ReleaseCapture();
1860 if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc,TRUE );
1861
1862 /* hand over pointer tracking */
1863 SendMessageA( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
1864 }
1865
1866 return 0;
1867}
1868
1869static LRESULT COMBO_MouseWheel(HWND hwnd,WPARAM wParam,LPARAM lParam)
1870{
1871 if (wParam & (MK_SHIFT | MK_CONTROL))
1872 return DefWindowProcA(hwnd,WM_MOUSEWHEEL,wParam,lParam);
1873
1874 if ((short) HIWORD(wParam) > 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_UP,0);
1875 if ((short) HIWORD(wParam) < 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_DOWN,0);
1876
1877 return TRUE;
1878}
1879
1880static LRESULT COMBO_Enable(HWND hwnd,WPARAM wParam,LPARAM lParam)
1881{
1882 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1883
1884 if( lphc->wState & CBF_EDIT )
1885 EnableWindow( lphc->hWndEdit, (BOOL)wParam );
1886 EnableWindow( lphc->hWndLBox, (BOOL)wParam );
1887
1888 /* Force the control to repaint when the enabled state changes. */
1889 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1890
1891 return 0;
1892}
1893
1894static LRESULT COMBO_SetRedraw(HWND hwnd,WPARAM wParam,LPARAM lParam)
1895{
1896 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1897
1898 if( wParam )
1899 lphc->wState &= ~CBF_NOREDRAW;
1900 else
1901 lphc->wState |= CBF_NOREDRAW;
1902
1903 if( lphc->wState & CBF_EDIT )
1904 SendMessageA( lphc->hWndEdit, WM_SETREDRAW, wParam, lParam );
1905 SendMessageA( lphc->hWndLBox, WM_SETREDRAW, wParam, lParam );
1906
1907 return 0;
1908}
1909
1910static LRESULT COMBO_SysKeyDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1911{
1912 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1913
1914 if( KEYDATA_ALT & HIWORD(lParam) )
1915 if( wParam == VK_UP || wParam == VK_DOWN )
1916 COMBO_FlipListbox( lphc,FALSE,FALSE );
1917
1918 return 0;
1919}
1920
1921static LRESULT COMBO_HandleKey(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1922{
1923 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1924
1925 if (((CHAR)wParam == VK_RETURN || (CHAR)wParam == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
1926 {
1927 CBRollUp( lphc, (CHAR)wParam == VK_RETURN, FALSE );
1928 return TRUE;
1929 }
1930
1931 if( lphc->wState & CBF_EDIT )
1932 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1933 else
1934 return SendMessageA( lphc->hWndLBox, message, wParam, lParam );
1935}
1936
1937/* combobox messages */
1938
1939static LRESULT COMBO_AddString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1940{
1941 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1942
1943 return SendMessageA(lphc->hWndLBox,LB_ADDSTRING,0,lParam);
1944}
1945
1946static LRESULT COMBO_InsertString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1947{
1948 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1949
1950 return SendMessageA(lphc->hWndLBox,LB_INSERTSTRING,wParam,lParam);
1951}
1952
1953static LRESULT COMBO_DeleteString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1954{
1955 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1956
1957 return SendMessageA(lphc->hWndLBox,LB_DELETESTRING,wParam,0);
1958}
1959
1960/***********************************************************************
1961 * COMBO_SelectString
1962 */
1963static LRESULT COMBO_SelectString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1964{
1965 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1966 INT CurSel = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1967 INT index = SendMessageA(lphc->hWndLBox,LB_SELECTSTRING,wParam,lParam);
1968
1969 if( index >= 0 )
1970 {
1971 if( lphc->wState & CBF_EDIT )
1972 {
1973 if (CurSel != index)
1974 CBUpdateEdit( lphc, index );
1975 } else
1976 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1977 }
1978
1979 return (LRESULT)index;
1980}
1981
1982static LRESULT COMBO_FindString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1983{
1984 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1985
1986 return SendMessageA(lphc->hWndLBox,LB_FINDSTRING,wParam,lParam);
1987}
1988
1989static LRESULT COMBO_FindStringExact(HWND hwnd,WPARAM wParam,LPARAM lParam)
1990{
1991 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1992
1993 return SendMessageA(lphc->hWndLBox,LB_FINDSTRINGEXACT,wParam,lParam);
1994}
1995
1996/***********************************************************************
1997 * COMBO_SetItemHeight
1998 */
1999static LRESULT COMBO_SetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
2000{
2001 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2002 LRESULT lRet = CB_ERR;
2003
2004 if( wParam == -1 ) /* set text field height */
2005 {
2006 if( lParam < 32768 )
2007 {
2008 lphc->editHeight = lParam;
2009
2010 /*
2011 * Redo the layout of the control.
2012 */
2013 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
2014 {
2015 CBCalcPlacement(hwnd,
2016 lphc,
2017 &lphc->textRect,
2018 &lphc->buttonRect,
2019 &lphc->droppedRect);
2020
2021 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
2022 }
2023 else
2024 {
2025 CBForceDummyResize(lphc);
2026 }
2027
2028 lRet = lParam;
2029 }
2030 }
2031 else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
2032 lRet = SendMessageA( lphc->hWndLBox, LB_SETITEMHEIGHT,
2033 wParam,lParam);
2034 return lRet;
2035}
2036
2037static LRESULT COMBO_GetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
2038{
2039 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2040
2041 if( (INT)wParam >= 0 ) /* listbox item */
2042 return SendMessageA( lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
2043
2044 return CBGetTextAreaHeight(hwnd, lphc);
2045}
2046
2047static LRESULT COMBO_ResetContent(HWND hwnd,WPARAM wParam,LPARAM lParam)
2048{
2049 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2050
2051 SendMessageA( lphc->hWndLBox, LB_RESETCONTENT, 0, 0 );
2052 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
2053
2054 return TRUE;
2055}
2056
2057static LRESULT COMBO_InitStorage(HWND hwnd,WPARAM wParam,LPARAM lParam)
2058{
2059 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2060
2061 return SendMessageA( lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
2062}
2063
2064static LRESULT COMBO_GetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
2065{
2066 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2067
2068 return SendMessageA( lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
2069}
2070
2071static LRESULT COMBO_SetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
2072{
2073 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2074
2075 return SendMessageA( lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
2076}
2077
2078static LRESULT COMBO_GetTopIndex(HWND hwnd,WPARAM wParam,LPARAM lParam)
2079{
2080 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2081
2082 return SendMessageA( lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
2083}
2084
2085static LRESULT COMBO_GetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
2086{
2087 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2088
2089 return SendMessageA( lphc->hWndLBox, LB_GETLOCALE, 0, 0);
2090}
2091
2092static LRESULT COMBO_SetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
2093{
2094 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2095
2096 return SendMessageA( lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
2097}
2098
2099static LRESULT COMBO_GetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2100{
2101 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2102
2103 if( lphc->droppedWidth )
2104 return lphc->droppedWidth;
2105
2106 return lphc->droppedRect.right - lphc->droppedRect.left;
2107}
2108
2109static LRESULT COMBO_SetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2110{
2111 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2112
2113 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
2114 (INT)wParam < 32768 ) lphc->droppedWidth = (INT)wParam;
2115
2116 return CB_ERR;
2117}
2118
2119static LRESULT COMBO_GetDroppedControlRect(HWND hwnd,WPARAM wParam,LPARAM lParam)
2120{
2121 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2122
2123 if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
2124
2125 return CB_OKAY;
2126}
2127
2128static LRESULT COMBO_GetDroppedState(HWND hwnd,WPARAM wParam,LPARAM lParam)
2129{
2130 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2131
2132 return (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
2133}
2134
2135static LRESULT COMBO_Dir(HWND hwnd,WPARAM wParam,LPARAM lParam)
2136{
2137 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2138
2139 return COMBO_Directory( lphc, (UINT)wParam,
2140 (LPSTR)lParam,TRUE);
2141}
2142
2143static LRESULT COMBO_ShowDropDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
2144{
2145 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2146
2147 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
2148 {
2149 if( wParam )
2150 {
2151 if( !(lphc->wState & CBF_DROPPED) )
2152 CBDropDown( lphc );
2153 }
2154 else
2155 if( lphc->wState & CBF_DROPPED )
2156 CBRollUp( lphc, FALSE, TRUE );
2157 }
2158
2159 return TRUE;
2160}
2161
2162static LRESULT COMBO_GetCount(HWND hwnd,WPARAM wParam,LPARAM lParam)
2163{
2164 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2165
2166 return SendMessageA( lphc->hWndLBox, LB_GETCOUNT, 0, 0);
2167}
2168
2169static LRESULT COMBO_GetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2170{
2171 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2172
2173 return SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0);
2174}
2175
2176static LRESULT COMBO_SetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2177{
2178 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2179
2180 lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
2181 if( lParam >= 0 )
2182 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
2183 if( lphc->wState & CBF_SELCHANGE )
2184 {
2185 //SvL: Clear the flag here; doing it after calling CBUpdateEdit causes
2186 // an infinite loop in RealPlayer 7
2187 lphc->wState &= ~CBF_SELCHANGE;
2188
2189 /* no LBN_SELCHANGE in this case, update manually */
2190 if( lphc->wState & CBF_EDIT )
2191 CBUpdateEdit( lphc, (INT)wParam );
2192 else
2193 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
2194 }
2195
2196 return lParam;
2197}
2198
2199static LRESULT COMBO_GetLBText(HWND hwnd,WPARAM wParam,LPARAM lParam)
2200{
2201 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2202
2203 return SendMessageA( lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
2204}
2205
2206static LRESULT COMBO_GetLBTextLen(HWND hwnd,WPARAM wParam,LPARAM lParam)
2207{
2208 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2209
2210 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
2211}
2212
2213static LRESULT COMBO_GetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2214{
2215 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2216
2217 return SendMessageA( lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
2218}
2219
2220static LRESULT COMBO_SetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2221{
2222 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2223
2224 return SendMessageA( lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
2225}
2226
2227static LRESULT COMBO_GetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2228{
2229 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2230
2231 if( lphc->wState & CBF_EDIT )
2232 {
2233 INT a, b;
2234
2235 return SendMessageA( lphc->hWndEdit, EM_GETSEL,
2236 (wParam) ? wParam : (WPARAM)&a,
2237 (lParam) ? lParam : (LPARAM)&b );
2238 }
2239
2240 return CB_ERR;
2241}
2242
2243static LRESULT COMBO_SetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2244{
2245 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2246
2247 if( lphc->wState & CBF_EDIT )
2248 return SendMessageA( lphc->hWndEdit, EM_SETSEL,
2249 (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
2250
2251 return CB_ERR;
2252}
2253
2254static LRESULT COMBO_SetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2255{
2256 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2257
2258 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
2259 return CB_ERR;
2260 if( wParam )
2261 lphc->wState |= CBF_EUI;
2262 else lphc->wState &= ~CBF_EUI;
2263 return CB_OKAY;
2264}
2265
2266static LRESULT COMBO_GetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2267{
2268 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2269
2270 return (lphc->wState & CBF_EUI) ? TRUE : FALSE;
2271}
2272
2273/***********************************************************************
2274 * ComboWndProc
2275 *
2276 * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
2277 */
2278LRESULT WINAPI ComboWndProc( HWND hwnd, UINT message,
2279 WPARAM wParam, LPARAM lParam )
2280{
2281// dprintf(("ComboWndProc hwnd: %04x, msg %s, wp %08x lp %08lx\n",
2282// hwnd, GetMsgText(message), wParam, lParam));
2283
2284 switch(message)
2285 {
2286
2287 /* System messages */
2288
2289 case WM_NCCREATE:
2290 return COMBO_NCCreate(hwnd,wParam,lParam);
2291
2292 case WM_NCDESTROY:
2293 return COMBO_NCDestroy(hwnd,wParam,lParam);
2294
2295 case WM_CREATE:
2296 return COMBO_Create(hwnd,wParam,lParam);
2297
2298 case WM_PRINTCLIENT:
2299 return COMBO_PrintClient(hwnd,wParam,lParam);
2300
2301 case WM_PAINT:
2302 return COMBO_Paint(hwnd,wParam,lParam);
2303
2304 case WM_ERASEBKGND:
2305 return COMBO_EraseBackground(hwnd,wParam,lParam);
2306
2307 case WM_GETDLGCODE:
2308 return COMBO_GetDlgCode(hwnd,wParam,lParam);
2309
2310 case WM_WINDOWPOSCHANGING:
2311 return COMBO_WindowPosChanging(hwnd,wParam,lParam);
2312
2313 case WM_SIZE:
2314 return COMBO_Size(hwnd,wParam,lParam);
2315
2316 case WM_SETFONT:
2317 return COMBO_SetFont(hwnd,wParam,lParam);
2318
2319 case WM_GETFONT:
2320 return COMBO_GetFont(hwnd,wParam,lParam);
2321
2322 case WM_SETFOCUS:
2323 return COMBO_SetFocus(hwnd,wParam,lParam);
2324
2325 case WM_KILLFOCUS:
2326 return COMBO_KillFocus(hwnd,wParam,lParam);
2327
2328 case WM_COMMAND:
2329 return COMBO_Command(hwnd,wParam,lParam);
2330
2331 case WM_GETTEXT:
2332 return COMBO_GetText(hwnd,wParam,lParam);
2333
2334 case WM_GETTEXTLENGTH:
2335 return COMBO_GetTextLength(hwnd,wParam,lParam);
2336
2337 case WM_SETTEXT:
2338 case WM_CLEAR:
2339 case WM_CUT:
2340 case WM_PASTE:
2341 case WM_COPY:
2342 return COMBO_HandleText(hwnd,message,wParam,lParam);
2343
2344 case WM_DRAWITEM:
2345 case WM_DELETEITEM:
2346 case WM_COMPAREITEM:
2347 case WM_MEASUREITEM:
2348 return COMBO_HandleItem(hwnd,message,wParam,lParam);
2349
2350 case WM_ENABLE:
2351 return COMBO_Enable(hwnd,wParam,lParam);
2352
2353 case WM_SETREDRAW:
2354 return COMBO_SetRedraw(hwnd,wParam,lParam);
2355
2356 case WM_SYSKEYDOWN:
2357 return COMBO_SysKeyDown(hwnd,wParam,lParam);
2358
2359 case WM_CHAR:
2360 case WM_KEYDOWN:
2361 return COMBO_HandleKey(hwnd,message,wParam,lParam);
2362
2363 case WM_LBUTTONDOWN:
2364 return COMBO_LButtonDown(hwnd,wParam,lParam);
2365
2366 case WM_LBUTTONUP:
2367 return COMBO_LButtonUp(hwnd,wParam,lParam);
2368
2369 case WM_MOUSEMOVE:
2370 return COMBO_MouseMove(hwnd,wParam,lParam);
2371
2372 case WM_MOUSEWHEEL:
2373 return COMBO_MouseWheel(hwnd,wParam,lParam);
2374
2375 /* Combo messages */
2376
2377 case CB_ADDSTRING:
2378 return COMBO_AddString(hwnd,wParam,lParam);
2379
2380 case CB_INSERTSTRING:
2381 return COMBO_InsertString(hwnd,wParam,lParam);
2382
2383 case CB_DELETESTRING:
2384 return COMBO_DeleteString(hwnd,wParam,lParam);
2385
2386 case CB_SELECTSTRING:
2387 return COMBO_SelectString(hwnd,wParam,lParam);
2388
2389 case CB_FINDSTRING:
2390 return COMBO_FindString(hwnd,wParam,lParam);
2391
2392 case CB_FINDSTRINGEXACT:
2393 return COMBO_FindStringExact(hwnd,wParam,lParam);
2394
2395 case CB_SETITEMHEIGHT:
2396 return COMBO_SetItemHeight(hwnd,wParam,lParam);
2397
2398 case CB_GETITEMHEIGHT:
2399 return COMBO_GetItemHeight(hwnd,wParam,lParam);
2400
2401 case CB_RESETCONTENT:
2402 return COMBO_ResetContent(hwnd,wParam,lParam);
2403
2404 case CB_INITSTORAGE:
2405 return COMBO_InitStorage(hwnd,wParam,lParam);
2406
2407 case CB_GETHORIZONTALEXTENT:
2408 return COMBO_GetHorizontalExtent(hwnd,wParam,lParam);
2409
2410 case CB_SETHORIZONTALEXTENT:
2411 return COMBO_SetHorizontalExtent(hwnd,wParam,lParam);
2412
2413 case CB_GETTOPINDEX:
2414 return COMBO_GetTopIndex(hwnd,wParam,lParam);
2415
2416 case CB_GETLOCALE:
2417 return COMBO_GetLocale(hwnd,wParam,lParam);
2418
2419 case CB_SETLOCALE:
2420 return COMBO_SetLocale(hwnd,wParam,lParam);
2421
2422 case CB_GETDROPPEDWIDTH:
2423 return COMBO_GetDroppedWidth(hwnd,wParam,lParam);
2424
2425 case CB_SETDROPPEDWIDTH:
2426 return COMBO_SetDroppedWidth(hwnd,wParam,lParam);
2427
2428 case CB_GETDROPPEDCONTROLRECT:
2429 return COMBO_GetDroppedControlRect(hwnd,wParam,lParam);
2430
2431 case CB_GETDROPPEDSTATE:
2432 return COMBO_GetDroppedState(hwnd,wParam,lParam);
2433
2434 case CB_DIR:
2435 return COMBO_Dir(hwnd,wParam,lParam);
2436
2437 case CB_SHOWDROPDOWN:
2438 return COMBO_ShowDropDown(hwnd,wParam,lParam);
2439
2440 case CB_GETCOUNT:
2441 return COMBO_GetCount(hwnd,wParam,lParam);
2442
2443 case CB_GETCURSEL:
2444 return COMBO_GetCurSel(hwnd,wParam,lParam);
2445
2446 case CB_SETCURSEL:
2447 return COMBO_SetCurSel(hwnd,wParam,lParam);
2448
2449 case CB_GETLBTEXT:
2450 return COMBO_GetLBText(hwnd,wParam,lParam);
2451
2452 case CB_GETLBTEXTLEN:
2453 return COMBO_GetLBTextLen(hwnd,wParam,lParam);
2454
2455 case CB_GETITEMDATA:
2456 return COMBO_GetItemData(hwnd,wParam,lParam);
2457
2458 case CB_SETITEMDATA:
2459 return COMBO_SetItemData(hwnd,wParam,lParam);
2460
2461 case CB_GETEDITSEL:
2462 return COMBO_GetEditSel(hwnd,wParam,lParam);
2463
2464 case CB_SETEDITSEL:
2465 return COMBO_SetEditSel(hwnd,wParam,lParam);
2466
2467 case CB_SETEXTENDEDUI:
2468 return COMBO_SetExtendedUI(hwnd,wParam,lParam);
2469
2470 case CB_GETEXTENDEDUI:
2471 return COMBO_GetExtendedUI(hwnd,wParam,lParam);
2472
2473 //case (WM_USER + 0x1B):
2474 // WARN("[%04x]: undocumented msg!\n", hwnd );
2475 }
2476 return DefWindowProcA(hwnd, message, wParam, lParam);
2477}
2478
2479BOOL COMBOBOX_Register()
2480{
2481 WNDCLASSA wndClass;
2482
2483//SvL: Don't check this now
2484// if (GlobalFindAtomA(COMBOBOXCLASSNAME)) return FALSE;
2485
2486 ZeroMemory(&wndClass,sizeof(WNDCLASSA));
2487 wndClass.style = CS_GLOBALCLASS | CS_PARENTDC;
2488 wndClass.lpfnWndProc = (WNDPROC)ComboWndProc;
2489 wndClass.cbClsExtra = 0;
2490 wndClass.cbWndExtra = sizeof(VOID*);
2491 wndClass.hCursor = LoadCursorA(0,IDC_ARROWA);
2492 wndClass.hbrBackground = (HBRUSH)0;
2493 wndClass.lpszClassName = COMBOBOXCLASSNAME;
2494
2495 return RegisterClassA(&wndClass);
2496}
2497
2498BOOL COMBOBOX_Unregister()
2499{
2500 if (GlobalFindAtomA(COMBOBOXCLASSNAME))
2501 return UnregisterClassA(COMBOBOXCLASSNAME,(HINSTANCE)NULL);
2502 else return FALSE;
2503}
2504
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