source: trunk/src/user32/combo.cpp@ 3584

Last change on this file since 3584 was 3584, checked in by cbratschi, 25 years ago

merged controls with Corel WINE 20000513, maximize/minimize fix
File size: 66.9 KB
Line 
1/* $Id: combo.cpp,v 1.31 2000-05-22 17:21:07 cbratschi 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 /*
270 * Again, start with the client rectangle.
271 */
272 GetClientRect(hwnd, lprEdit);
273
274 /*
275 * Remove the borders
276 */
277 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
278
279 /*
280 * Chop off the bottom part to fit with the height of the text area.
281 */
282 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
283
284 /*
285 * The button starts the same vertical position as the text area.
286 */
287 CopyRect(lprButton, lprEdit);
288
289 /*
290 * If the combobox is "simple" there is no button.
291 */
292 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
293 lprButton->left = lprButton->right = lprButton->bottom = 0;
294 else
295 {
296 /*
297 * Let's assume the combobox button is the same width as the
298 * scrollbar button.
299 * size the button horizontally and cut-off the text area.
300 */
301 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
302 lprEdit->right = lprButton->left;
303 }
304
305 /*
306 * In the case of a dropdown, there is an additional spacing between the
307 * text area and the button.
308 */
309 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
310 {
311 lprEdit->right -= COMBO_EDITBUTTONSPACE();
312 }
313
314 /*
315 * If we have an edit control, we space it away from the borders slightly.
316 */
317 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
318 {
319 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
320 }
321
322 /*
323 * Adjust the size of the listbox popup.
324 */
325 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
326 {
327 /*
328 * Use the client rectangle to initialize the listbox rectangle
329 */
330 GetClientRect(hwnd, lprLB);
331
332 /*
333 * Then, chop-off the top part.
334 */
335 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
336 }
337 else
338 {
339 //SvL: Listbox size might have changed!
340 if(lphc->hWndLBox)
341 GetWindowRect(lphc->hWndLBox, lprLB);
342
343 /*
344 * Make sure the dropped width is as large as the combobox itself.
345 */
346 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
347 {
348 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
349
350 /*
351 * In the case of a dropdown, the popup listbox is offset to the right.
352 * so, we want to make sure it's flush with the right side of the
353 * combobox
354 */
355 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
356 lprLB->right -= COMBO_EDITBUTTONSPACE();
357 }
358 else
359 lprLB->right = lprLB->left + lphc->droppedWidth;
360 }
361
362 //TRACE("\ttext\t= (%i,%i-%i,%i)\n",
363 // lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom);
364
365 //TRACE("\tbutton\t= (%i,%i-%i,%i)\n",
366 // lprButton->left, lprButton->top, lprButton->right, lprButton->bottom);
367
368 //TRACE("\tlbox\t= (%i,%i-%i,%i)\n",
369 // lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
370}
371
372/***********************************************************************
373 * CBGetDroppedControlRect
374 */
375static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
376{
377 /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
378 of the combo box and the lower right corner of the listbox */
379
380 GetWindowRect(lphc->hwndself, lpRect);
381
382 lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
383 lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
384
385}
386
387/***********************************************************************
388 * COMBO_WindowPosChanging
389 */
390static LRESULT COMBO_WindowPosChanging(HWND hwnd,WPARAM wParam,LPARAM lParam)
391{
392 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
393 WINDOWPOS *posChanging = (WINDOWPOS*)lParam;
394
395 dprintf(("COMBO_WindowPosChanging"));
396
397 /*
398 * We need to override the WM_WINDOWPOSCHANGING method to handle all
399 * the non-simple comboboxes. The problem is that those controls are
400 * always the same height. We have to make sure they are not resized
401 * to another value.
402 */
403 if ( ( CB_GETTYPE(lphc) != CBS_SIMPLE ) &&
404 ((posChanging->flags & SWP_NOSIZE) == 0) )
405 {
406 int newComboHeight;
407
408 newComboHeight = CBGetTextAreaHeight(hwnd,lphc) +
409 2*COMBO_YBORDERSIZE();
410
411 /*
412 * Resizing a combobox has another side effect, it resizes the dropped
413 * rectangle as well. However, it does it only if the new height for the
414 * combobox is different than the height it should have. In other words,
415 * if the application resizing the combobox only had the intention to resize
416 * the actual control, for example, to do the layout of a dialog that is
417 * resized, the height of the dropdown is not changed.
418 */
419 if (posChanging->cy != newComboHeight)
420 {
421 if (posChanging->cy > newComboHeight)
422 lphc->droppedRect.bottom = lphc->droppedRect.top + posChanging->cy - newComboHeight;
423 posChanging->cy = newComboHeight;
424 }
425 }
426
427 return 0;
428}
429
430/***********************************************************************
431 * COMBO_Create
432 */
433static LRESULT COMBO_Create(HWND hwnd,WPARAM wParam,LPARAM lParam)
434{
435 static char clbName[] = "ComboLBox";
436 static char editName[] = "Edit";
437 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
438
439 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
440
441 if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
442 if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
443
444 lphc->hwndself = hwnd;
445 lphc->owner = lpcs->hwndParent;
446
447 /*
448 * The item height and dropped width are not set when the control
449 * is created.
450 */
451 lphc->droppedWidth = lphc->editHeight = 0;
452
453 /*
454 * The first time we go through, we want to measure the ownerdraw item
455 */
456 lphc->wState |= CBF_MEASUREITEM;
457
458 /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
459
460 if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
461 {
462 UINT lbeStyle = 0;
463 UINT lbeExStyle = 0;
464
465 /*
466 * Initialize the dropped rect to the size of the client area of the
467 * control and then, force all the areas of the combobox to be
468 * recalculated.
469 */
470 GetClientRect( hwnd, &lphc->droppedRect );
471
472 CBCalcPlacement(hwnd,
473 lphc,
474 &lphc->textRect,
475 &lphc->buttonRect,
476 &lphc->droppedRect );
477
478 /*
479 * Adjust the position of the popup listbox if it's necessary
480 */
481 if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
482 {
483 lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
484
485 /*
486 * If it's a dropdown, the listbox is offset
487 */
488 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
489 lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
490
491 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect);
492 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect.right);
493 }
494
495 /* create listbox popup */
496
497 lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD) |
498 (lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
499
500 if( lphc->dwStyle & CBS_SORT )
501 lbeStyle |= LBS_SORT;
502 if( lphc->dwStyle & CBS_HASSTRINGS )
503 lbeStyle |= LBS_HASSTRINGS;
504 if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
505 lbeStyle |= LBS_NOINTEGRALHEIGHT;
506 if( lphc->dwStyle & CBS_DISABLENOSCROLL )
507 lbeStyle |= LBS_DISABLENOSCROLL;
508
509 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
510 {
511 lbeStyle |= WS_VISIBLE;
512
513 /*
514 * In win 95 look n feel, the listbox in the simple combobox has
515 * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
516 */
517 lbeStyle &= ~WS_BORDER;
518 lbeExStyle |= WS_EX_CLIENTEDGE;
519 }
520
521 lphc->hWndLBox = CreateWindowExA(lbeExStyle,
522 clbName,
523 NULL,
524 lbeStyle,
525 lphc->droppedRect.left,
526 lphc->droppedRect.top,
527 lphc->droppedRect.right - lphc->droppedRect.left,
528 lphc->droppedRect.bottom - lphc->droppedRect.top,
529 lphc->hwndself,
530 (HMENU)ID_CB_LISTBOX,
531 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
532 (LPVOID)lphc );
533
534 if( lphc->hWndLBox )
535 {
536 BOOL bEdit = TRUE;
537 lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT | ES_COMBO;
538
539 /*
540 * In Win95 look, the border fo the edit control is
541 * provided by the combobox
542 */
543 if( lphc->wState & CBF_EDIT )
544 {
545 if( lphc->dwStyle & CBS_OEMCONVERT )
546 lbeStyle |= ES_OEMCONVERT;
547 if( lphc->dwStyle & CBS_AUTOHSCROLL )
548 lbeStyle |= ES_AUTOHSCROLL;
549 if( lphc->dwStyle & CBS_LOWERCASE )
550 lbeStyle |= ES_LOWERCASE;
551 else if( lphc->dwStyle & CBS_UPPERCASE )
552 lbeStyle |= ES_UPPERCASE;
553
554 lphc->hWndEdit = CreateWindowExA(0,
555 editName,
556 NULL,
557 lbeStyle,
558 lphc->textRect.left, lphc->textRect.top,
559 lphc->textRect.right - lphc->textRect.left,
560 lphc->textRect.bottom - lphc->textRect.top,
561 lphc->hwndself,
562 (HMENU)ID_CB_EDIT,
563 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
564 NULL );
565
566 if( !lphc->hWndEdit )
567 bEdit = FALSE;
568 }
569
570 if( bEdit )
571 {
572 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
573 {
574 /* Now do the trick with parent */
575 SetParent(lphc->hWndLBox, HWND_DESKTOP);
576
577 /*
578 * If the combo is a dropdown, we must resize the control to fit only
579 * the text area and button. To do this, we send a dummy resize and the
580 * WM_WINDOWPOSCHANGING message will take care of setting the height for
581 * us.
582 */
583
584 CBForceDummyResize(lphc);
585 }
586
587 //TRACE("init done\n");
588 return hwnd;
589 }
590 //ERR("edit control failure.\n");
591 } //else ERR("listbox failure.\n");
592 } //else ERR("no owner for visible combo.\n");
593
594 /* CreateWindow() will send WM_NCDESTROY to cleanup */
595
596 return -1;
597}
598
599/***********************************************************************
600 * CBPaintButton
601 *
602 * Paint combo button (normal, pressed, and disabled states).
603 */
604static void CBPaintButton(
605 LPHEADCOMBO lphc,
606 HDC hdc,
607 RECT rectButton)
608{
609 if( lphc->wState & CBF_NOREDRAW )
610 return;
611
612
613 UINT buttonState = DFCS_SCROLLCOMBOBOX;
614
615 if (lphc->wState & CBF_BUTTONDOWN)
616 {
617 buttonState |= DFCS_PUSHED;
618 }
619
620 if (CB_DISABLED(lphc))
621 {
622 buttonState |= DFCS_INACTIVE;
623 }
624
625 DrawFrameControl(hdc,&rectButton,DFC_SCROLL,buttonState);
626}
627
628/***********************************************************************
629 * CBPaintText
630 *
631 * Paint CBS_DROPDOWNLIST text field / update edit control contents.
632 */
633static void CBPaintText(
634 LPHEADCOMBO lphc,
635 HDC hdc,
636 RECT rectEdit)
637{
638 INT id, size = 0;
639 LPSTR pText = NULL;
640
641 if( lphc->wState & CBF_NOREDRAW ) return;
642
643 /* follow Windows combobox that sends a bunch of text
644 * inquiries to its listbox while processing WM_PAINT. */
645
646 if( (id = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
647 {
648 size = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
649 if( (pText = (char*)HeapAlloc( GetProcessHeap(), 0, size + 1)) != NULL )
650 {
651 SendMessageA( lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText );
652 pText[size] = '\0'; /* just in case */
653 } else return;
654 }
655
656 if( lphc->wState & CBF_EDIT )
657 {
658 if( CB_HASSTRINGS(lphc) ) SetWindowTextA( lphc->hWndEdit, pText ? pText : "" );
659 if( lphc->wState & CBF_FOCUSED )
660 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
661 }
662 else /* paint text field ourselves */
663 {
664 UINT itemState;
665 HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
666
667 /*
668 * Give ourselves some space.
669 */
670 InflateRect( &rectEdit, -1, -1 );
671
672 if ( (lphc->wState & CBF_FOCUSED) &&
673 !(lphc->wState & CBF_DROPPED) )
674 {
675 /* highlight */
676
677 FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
678 SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
679 SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
680 itemState = ODS_SELECTED | ODS_FOCUS;
681 }
682 else
683 itemState = 0;
684
685 if( CB_OWNERDRAWN(lphc) )
686 {
687 DRAWITEMSTRUCT dis;
688 HRGN clipRegion;
689 DWORD dwStyle = GetWindowLongA(lphc->hwndself,GWL_STYLE);
690
691 /*
692 * Save the current clip region.
693 * To retrieve the clip region, we need to create one "dummy"
694 * clip region.
695 */
696 clipRegion = CreateRectRgnIndirect(&rectEdit);
697
698 if (GetClipRgn(hdc, clipRegion)!=1)
699 {
700 DeleteObject(clipRegion);
701 clipRegion=(HRGN)NULL;
702 }
703
704 if ( dwStyle & WS_DISABLED )
705 itemState |= ODS_DISABLED;
706
707 dis.CtlType = ODT_COMBOBOX;
708 dis.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
709 dis.hwndItem = lphc->hwndself;
710 dis.itemAction = ODA_DRAWENTIRE;
711 dis.itemID = id;
712 dis.itemState = itemState | ODS_COMBOBOXEDIT;
713 dis.hDC = hdc;
714 dis.rcItem = rectEdit;
715 dis.itemData = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA,
716 (WPARAM)id, 0 );
717
718 /*
719 * Clip the DC and have the parent draw the item.
720 */
721 IntersectClipRect(hdc,
722 rectEdit.left, rectEdit.top,
723 rectEdit.right, rectEdit.bottom);
724
725 SendMessageA(lphc->owner, WM_DRAWITEM,
726 GetWindowLongA(lphc->hwndself,GWL_ID), (LPARAM)&dis );
727
728 /*
729 * Reset the clipping region.
730 */
731 SelectClipRgn(hdc, clipRegion);
732 }
733 else
734 {
735 ExtTextOutA( hdc,
736 rectEdit.left + 1,
737 rectEdit.top + 1,
738 ETO_OPAQUE | ETO_CLIPPED,
739 &rectEdit,
740 pText ? pText : "" , size, NULL );
741
742 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
743 DrawFocusRect( hdc, &rectEdit );
744 }
745
746 if( hPrevFont )
747 SelectObject(hdc, hPrevFont );
748 }
749 if (pText)
750 HeapFree( GetProcessHeap(), 0, pText );
751}
752
753/***********************************************************************
754 * CBPaintBorder
755 */
756static void CBPaintBorder(
757 HWND hwnd,
758 LPHEADCOMBO lphc,
759 HDC hdc)
760{
761 RECT clientRect;
762
763 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
764 {
765 GetClientRect(hwnd, &clientRect);
766 }
767 else
768 {
769 CopyRect(&clientRect, &lphc->textRect);
770
771 InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
772 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
773 }
774
775 DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
776}
777
778/***********************************************************************
779 * COMBO_PrepareColors
780 *
781 * This method will sent the appropriate WM_CTLCOLOR message to
782 * prepare and setup the colors for the combo's DC.
783 *
784 * It also returns the brush to use for the background.
785 */
786static HBRUSH COMBO_PrepareColors(
787 HWND hwnd,
788 LPHEADCOMBO lphc,
789 HDC hDC)
790{
791 HBRUSH hBkgBrush;
792
793 /*
794 * Get the background brush for this control.
795 */
796 if (CB_DISABLED(lphc))
797 {
798 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORSTATIC,
799 hDC, lphc->hwndself );
800
801 /*
802 * We have to change the text color since WM_CTLCOLORSTATIC will
803 * set it to the "enabled" color. This is the same behavior as the
804 * edit control
805 */
806 SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
807 }
808 else
809 {
810 if (lphc->wState & CBF_EDIT)
811 {
812 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLOREDIT,
813 hDC, lphc->hwndself );
814 }
815 else
816 {
817 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
818 hDC, lphc->hwndself );
819 }
820 }
821
822 /*
823 * Catch errors.
824 */
825 if( !hBkgBrush )
826 hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
827
828 return hBkgBrush;
829}
830
831/***********************************************************************
832 * COMBO_EraseBackground
833 */
834static LRESULT COMBO_EraseBackground(HWND hwnd,WPARAM wParam,LPARAM lParam)
835{
836 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
837 HBRUSH hBkgBrush;
838 RECT clientRect;
839 HDC hDC;
840
841 hDC = (wParam) ? (HDC)wParam:GetDC(hwnd);
842
843 /*
844 * Calculate the area that we want to erase.
845 */
846 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
847 {
848 GetClientRect(hwnd, &clientRect);
849 }
850 else
851 {
852 CopyRect(&clientRect, &lphc->textRect);
853
854 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
855 }
856
857 /*
858 * Retrieve the background brush
859 */
860 hBkgBrush = COMBO_PrepareColors(hwnd, lphc, hDC);
861
862 FillRect(hDC, &clientRect, hBkgBrush);
863
864 if (!wParam)
865 ReleaseDC(hwnd, hDC);
866
867 return TRUE;
868}
869
870static LRESULT COMBO_GetDlgCode(HWND hwnd,WPARAM wParam,LPARAM lParam)
871{
872 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
873 LRESULT result = DLGC_WANTARROWS | DLGC_WANTCHARS;
874
875 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
876 {
877 int vk = (int)((LPMSG)lParam)->wParam;
878
879 if ((vk == VK_RETURN || vk == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
880 result |= DLGC_WANTMESSAGE;
881 }
882 return result;
883}
884
885/***********************************************************************
886 * COMBO_Paint
887 */
888static LRESULT COMBO_Paint(HWND hwnd,WPARAM wParam,LPARAM lParam)
889{
890 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
891 PAINTSTRUCT ps;
892 HDC hDC;
893
894 hDC = (wParam) ? (HDC)wParam:BeginPaint(hwnd,&ps);
895
896
897 if( hDC && !(lphc->wState & CBF_NOREDRAW) )
898 {
899 HBRUSH hPrevBrush, hBkgBrush;
900
901 /*
902 * Retrieve the background brush and select it in the
903 * DC.
904 */
905 hBkgBrush = COMBO_PrepareColors(hwnd,lphc,hDC);
906
907 hPrevBrush = SelectObject( hDC, hBkgBrush );
908
909 /*
910 * In non 3.1 look, there is a sunken border on the combobox
911 */
912 CBPaintBorder(CB_HWND(lphc), lphc, hDC);
913
914 if( !IsRectEmpty(&lphc->buttonRect) )
915 {
916 CBPaintButton(lphc, hDC, lphc->buttonRect);
917 }
918
919 if( !(lphc->wState & CBF_EDIT) )
920 {
921 /*
922 * The text area has a border only in Win 3.1 look.
923 */
924
925 CBPaintText( lphc, hDC, lphc->textRect);
926 }
927
928 if( hPrevBrush )
929 SelectObject( hDC, hPrevBrush );
930 }
931
932 if(!wParam) EndPaint(hwnd,&ps);
933
934 return 0;
935}
936
937static LRESULT COMBO_PrintClient(HWND hwnd,WPARAM wParam,LPARAM lParam)
938{
939 if (lParam & PRF_ERASEBKGND) COMBO_EraseBackground(hwnd,wParam,lParam);
940
941 return COMBO_Paint(hwnd,wParam,lParam);
942}
943
944/***********************************************************************
945 * CBUpdateLBox
946 *
947 * Select listbox entry according to the contents of the edit control.
948 */
949static INT CBUpdateLBox( LPHEADCOMBO lphc, BOOL bSelect )
950{
951 INT length, idx;
952 LPSTR pText = NULL;
953
954 idx = LB_ERR;
955 length = CB_GETEDITTEXTLENGTH( lphc );
956
957 if( length > 0 )
958 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
959
960 //TRACE("\t edit text length %i\n", length );
961
962 if( pText )
963 {
964 if( length ) GetWindowTextA( lphc->hWndEdit, pText, length + 1);
965 else pText[0] = '\0';
966 idx = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
967 (WPARAM)(-1), (LPARAM)pText );
968 HeapFree( GetProcessHeap(), 0, pText );
969 }
970
971 SendMessageA( lphc->hWndLBox, LB_SETCURSEL, (WPARAM)(bSelect ? idx : -1), 0 );
972
973 /* the LB_SETCARETINDEX message should scroll the list box if required
974 and sending LB_SETTOPINDEX can generate annoying behaviors */
975 /* probably superfluous but Windows sends this too */
976 SendMessageA( lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0 );
977 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0 );
978
979 return idx;
980}
981
982/***********************************************************************
983 * CBUpdateEdit
984 *
985 * Copy a listbox entry to the edit control.
986 */
987static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
988{
989 INT length;
990 LPSTR pText = NULL;
991
992 //TRACE("\t %i\n", index );
993
994 if( index >= 0 ) /* got an entry */
995 {
996 length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
997 if( length )
998 {
999 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1000 if(pText)
1001 {
1002 SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1003 (WPARAM)index, (LPARAM)pText );
1004 }
1005 }
1006 }
1007 lphc->wState |= CBF_NOEDITNOTIFY;
1008
1009 SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)"" );
1010
1011 lphc->wState &= ~CBF_NOEDITNOTIFY;
1012
1013 if( lphc->wState & CBF_FOCUSED )
1014 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1015
1016
1017 if( pText )
1018 HeapFree( GetProcessHeap(), 0, pText );
1019}
1020
1021/***********************************************************************
1022 * CBDropDown
1023 *
1024 * Show listbox popup.
1025 */
1026static void CBDropDown( LPHEADCOMBO lphc )
1027{
1028 RECT rect;
1029 int nItems = 0;
1030 int nDroppedHeight;
1031
1032 HWND hWnd = 0;
1033 RECT DesktopRect;
1034
1035 //TRACE("[%04x]: drop down\n", CB_HWND(lphc));
1036
1037 CB_NOTIFY( lphc, CBN_DROPDOWN );
1038
1039 /* set selection */
1040
1041 lphc->wState |= CBF_DROPPED;
1042 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1043 {
1044 lphc->droppedIndex = CBUpdateLBox( lphc,TRUE );
1045
1046 if( !(lphc->wState & CBF_CAPTURE) )
1047 CBUpdateEdit( lphc, lphc->droppedIndex );
1048 }
1049 else
1050 {
1051 lphc->droppedIndex = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1052
1053 if( lphc->droppedIndex == LB_ERR )
1054 lphc->droppedIndex = 0;
1055
1056 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX,
1057 (WPARAM)(lphc->droppedIndex == LB_ERR ? 0 : 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
1078 if (nItems > 0)
1079 {
1080 int nHeight;
1081
1082 nHeight = (int)SendMessageA (lphc->hWndLBox, LB_GETITEMHEIGHT, 0, 0);
1083 nHeight *= nItems;
1084
1085 if (nHeight < nDroppedHeight - COMBO_YBORDERSIZE())
1086 nDroppedHeight = nHeight + COMBO_YBORDERSIZE();
1087 }
1088
1089 /*Now we should know screen size. */
1090 hWnd = GetDesktopWindow();
1091
1092 if( hWnd )
1093 {
1094 GetClientRect( hWnd, &DesktopRect );
1095 }
1096
1097
1098 /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
1099 if((rect.bottom + nDroppedHeight) >= DesktopRect.bottom)
1100 rect.bottom = rect.top - nDroppedHeight;
1101
1102 SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.bottom,
1103 lphc->droppedRect.right - lphc->droppedRect.left,
1104 nDroppedHeight,
1105 SWP_NOACTIVATE | SWP_SHOWWINDOW);
1106
1107
1108 if( !(lphc->wState & CBF_NOREDRAW) )
1109 RedrawWindow( lphc->hwndself, NULL, 0, RDW_INVALIDATE |
1110 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1111
1112 EnableWindow( lphc->hWndLBox, TRUE );
1113 if (GetCapture() != lphc->hwndself)
1114 SetCapture(lphc->hWndLBox);
1115}
1116
1117/***********************************************************************
1118 * CBRollUp
1119 *
1120 * Hide listbox popup.
1121 */
1122static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
1123{
1124 HWND hWnd = lphc->hwndself;
1125
1126 CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
1127
1128 if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
1129 {
1130
1131 //TRACE("[%04x]: roll up [%i]\n", CB_HWND(lphc), (INT)ok );
1132
1133 if( lphc->wState & CBF_DROPPED )
1134 {
1135 RECT rect;
1136
1137 lphc->wState &= ~CBF_DROPPED;
1138 /* By hiding the window, the capture by lphc->hWndLBox will be released too */
1139
1140 ShowWindow( lphc->hWndLBox, SW_HIDE );
1141
1142 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1143 {
1144 rect = lphc->buttonRect;
1145 }
1146 else
1147 {
1148 if( bButton )
1149 {
1150 UnionRect( &rect,
1151 &lphc->buttonRect,
1152 &lphc->textRect);
1153 }
1154 else
1155 rect = lphc->textRect;
1156
1157 bButton = TRUE;
1158 }
1159
1160 if( bButton && !(lphc->wState & CBF_NOREDRAW) )
1161 RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
1162 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1163 CB_NOTIFY( lphc, CBN_CLOSEUP );
1164 }
1165 }
1166}
1167
1168/***********************************************************************
1169 * COMBO_FlipListbox
1170 *
1171 * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
1172 */
1173BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL ok, BOOL bRedrawButton )
1174{
1175 if( lphc->wState & CBF_DROPPED )
1176 {
1177 CBRollUp( lphc, ok, bRedrawButton );
1178 return FALSE;
1179 }
1180
1181 CBDropDown( lphc );
1182 return TRUE;
1183}
1184
1185/***********************************************************************
1186 * CBRepaintButton
1187 */
1188static void CBRepaintButton( LPHEADCOMBO lphc )
1189 {
1190 InvalidateRect(CB_HWND(lphc), &lphc->buttonRect, TRUE);
1191 UpdateWindow(CB_HWND(lphc));
1192}
1193
1194static VOID COMBO_EditSetFocus(LPHEADCOMBO lphc)
1195{
1196 if(!(lphc->wState & CBF_FOCUSED))
1197 {
1198 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1199 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1200
1201 lphc->wState |= CBF_FOCUSED;
1202
1203 if( !(lphc->wState & CBF_EDIT) )
1204 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1205
1206 CB_NOTIFY( lphc, CBN_SETFOCUS );
1207 }
1208}
1209
1210/***********************************************************************
1211 * COMBO_SetFocus
1212 */
1213static LRESULT COMBO_SetFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1214{
1215 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1216
1217//SvL: This doesn't work. Example:
1218// Click on combo box in Abiword (when it doesn't have the focus)
1219// COMBO_LButtonDown checks focus, not set -> SetFocus to combo box
1220// Next thing it does is check if it has the focus (CBF_FOCUSED flag).
1221// This check fails as SetFocus(lphc->hWndEdit) doesn't change this flag.
1222// Removing this check doesn't work as the listbox is not removed after it
1223// loses the focus.
1224// if(lphc->wState & CBF_EDIT)
1225// SetFocus(lphc->hWndEdit);
1226// else
1227 COMBO_EditSetFocus(lphc);
1228
1229 return 0;
1230}
1231
1232static VOID COMBO_EditKillFocus(LPHEADCOMBO lphc)
1233{
1234 if( lphc->wState & CBF_FOCUSED )
1235 {
1236 CBRollUp( lphc, FALSE, TRUE );
1237 if( IsWindow( lphc->hwndself ) )
1238 {
1239 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1240 SendMessageA( lphc->hWndLBox, LB_CARETOFF, 0, 0 );
1241
1242 lphc->wState &= ~CBF_FOCUSED;
1243
1244 /* redraw text */
1245 if( !(lphc->wState & CBF_EDIT) )
1246 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1247
1248 CB_NOTIFY( lphc, CBN_KILLFOCUS );
1249 }
1250 }
1251}
1252
1253/***********************************************************************
1254 * COMBO_KillFocus
1255 */
1256static LRESULT COMBO_KillFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1257{
1258 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1259
1260 if(!wParam || (wParam != lphc->hWndEdit && wParam != lphc->hWndLBox ))
1261 {
1262 COMBO_EditKillFocus(lphc);
1263 }
1264
1265 return 0;
1266}
1267
1268/***********************************************************************
1269 * COMBO_Command
1270 */
1271static LRESULT COMBO_Command(HWND hwnd,WPARAM wParam,LPARAM lParam)
1272{
1273 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1274
1275 if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == lParam )
1276 {
1277 /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
1278
1279 switch( HIWORD(wParam) >> 8 )
1280 {
1281 case (EN_SETFOCUS >> 8):
1282
1283 //TRACE("[%04x]: edit [%04x] got focus\n",
1284 // CB_HWND(lphc), lphc->hWndEdit );
1285
1286 COMBO_EditSetFocus(lphc);
1287 break;
1288
1289 case (EN_KILLFOCUS >> 8):
1290
1291 //TRACE("[%04x]: edit [%04x] lost focus\n",
1292 // CB_HWND(lphc), lphc->hWndEdit );
1293
1294 /* NOTE: it seems that Windows' edit control sends an
1295 * undocumented message WM_USER + 0x1B instead of this
1296 * notification (only when it happens to be a part of
1297 * the combo). ?? - AK.
1298 */
1299
1300 COMBO_EditKillFocus(lphc);
1301 break;
1302
1303
1304 case (EN_CHANGE >> 8):
1305 /*
1306 * In some circumstances (when the selection of the combobox
1307 * is changed for example) we don't wans the EN_CHANGE notification
1308 * to be forwarded to the parent of the combobox. This code
1309 * checks a flag that is set in these occasions and ignores the
1310 * notification.
1311 */
1312 if (lphc->wState & CBF_NOEDITNOTIFY)
1313 {
1314 lphc->wState &= ~CBF_NOEDITNOTIFY;
1315 }
1316 else
1317 {
1318 CB_NOTIFY( lphc, CBN_EDITCHANGE );
1319 }
1320
1321 if (lphc->wState & CBF_NOLBSELECT)
1322 {
1323 lphc->wState &= ~CBF_NOLBSELECT;
1324 }
1325 else
1326 {
1327 CBUpdateLBox( lphc, lphc->wState & CBF_DROPPED );
1328 }
1329 break;
1330
1331 case (EN_UPDATE >> 8):
1332 //SvL: Don't send updates either. (Realplayer 7 infinite loops)
1333 //CB: note: EN_UPDATE changes in Corel 20000317
1334 /*
1335 * In some circumstances (when the selection of the combobox
1336 * is changed for example) we don't wans the EN_CHANGE notification
1337 * to be forwarded to the parent of the combobox. This code
1338 * checks a flag that is set in these occasions and ignores the
1339 * notification.
1340 */
1341 if (lphc->wState & CBF_NOEDITNOTIFY)
1342 {
1343 lphc->wState &= ~CBF_NOEDITNOTIFY;
1344 }
1345 else
1346 {
1347 CB_NOTIFY( lphc, CBN_EDITUPDATE );
1348 }
1349 break;
1350
1351 case (EN_ERRSPACE >> 8):
1352 CB_NOTIFY( lphc, CBN_ERRSPACE );
1353 }
1354 }
1355 else if( lphc->hWndLBox == lParam )
1356 {
1357 switch( HIWORD(wParam) )
1358 {
1359 case LBN_ERRSPACE:
1360 CB_NOTIFY( lphc, CBN_ERRSPACE );
1361 break;
1362
1363 case LBN_DBLCLK:
1364 CB_NOTIFY( lphc, CBN_DBLCLK );
1365 break;
1366
1367 case LBN_SELCHANGE:
1368 case LBN_SELCANCEL:
1369
1370 //TRACE("[%04x]: lbox selection change [%04x]\n",
1371 // CB_HWND(lphc), lphc->wState );
1372
1373 /* do not roll up if selection is being tracked
1374 * by arrowkeys in the dropdown listbox */
1375
1376 if( (CB_GETTYPE(lphc) == CBS_SIMPLE) ||
1377 ((lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP)) )
1378 {
1379 CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
1380 }
1381 else lphc->wState &= ~CBF_NOROLLUP;
1382
1383 CB_NOTIFY( lphc, CBN_SELCHANGE );
1384
1385 if( HIWORD(wParam) == LBN_SELCHANGE)
1386 {
1387 if( lphc->wState & CBF_EDIT )
1388 {
1389 INT index = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1390
1391 lphc->wState |= CBF_NOLBSELECT;
1392 CBUpdateEdit( lphc, index );
1393 /* select text in edit, as Windows does */
1394 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1395 }
1396 else
1397 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1398 }
1399
1400 /* fall through */
1401
1402 case LBN_SETFOCUS:
1403 case LBN_KILLFOCUS:
1404 /* nothing to do here since ComboLBox always resets the focus to its
1405 * combo/edit counterpart */
1406 break;
1407 }
1408 }
1409 return 0;
1410}
1411
1412/***********************************************************************
1413 * COMBO_HandleItem
1414 *
1415 * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
1416 */
1417static LRESULT COMBO_HandleItem(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
1418{
1419 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1420
1421 //TRACE("[%04x]: ownerdraw op %04x\n", CB_HWND(lphc), msg );
1422
1423#define lpIS ((LPDELETEITEMSTRUCT)lParam)
1424
1425 /* two first items are the same in all 4 structs */
1426 lpIS->CtlType = ODT_COMBOBOX;
1427 lpIS->CtlID = GetWindowLongA(hwnd,GWL_ID);
1428
1429 switch( msg ) /* patch window handle */
1430 {
1431 case WM_DELETEITEM:
1432 lpIS->hwndItem = hwnd;
1433#undef lpIS
1434 break;
1435 case WM_DRAWITEM:
1436#define lpIS ((LPDRAWITEMSTRUCT)lParam)
1437 lpIS->hwndItem = hwnd;
1438#undef lpIS
1439 break;
1440 case WM_COMPAREITEM:
1441#define lpIS ((LPCOMPAREITEMSTRUCT)lParam)
1442 lpIS->hwndItem = hwnd;
1443#undef lpIS
1444 break;
1445 }
1446
1447 return SendMessageA( lphc->owner, msg, GetWindowLongA(hwnd,GWL_ID), lParam );
1448}
1449
1450/***********************************************************************
1451 * COMBO_GetText
1452 */
1453static LRESULT COMBO_GetText(HWND hwnd,WPARAM wParam,LPARAM lParam)
1454{
1455 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1456
1457 if( lphc->wState & CBF_EDIT )
1458 return SendMessageA( lphc->hWndEdit, WM_GETTEXT,
1459 wParam,lParam);
1460
1461 /* get it from the listbox */
1462
1463 if( lphc->hWndLBox )
1464 {
1465 INT idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1466 if( idx != LB_ERR )
1467 {
1468 LPSTR lpBuffer;
1469 INT length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN,
1470 (WPARAM)idx, 0 );
1471
1472 /* 'length' is without the terminating character */
1473 if( length >= (UINT)wParam )
1474 lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
1475 else
1476 lpBuffer = (LPSTR)lParam;
1477
1478 if( lpBuffer )
1479 {
1480 INT n = SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1481 (WPARAM)idx, (LPARAM)lpBuffer );
1482
1483 /* truncate if buffer is too short */
1484
1485 if( length >= (UINT)wParam )
1486 {
1487 if ((UINT)wParam && lParam) {
1488 if( n != LB_ERR ) memcpy( (LPSTR)lParam, lpBuffer, ((UINT)wParam>n) ? n+1 : (UINT)wParam-1 );
1489 ((LPSTR)lParam)[(UINT)wParam - 1] = '\0';
1490 }
1491 HeapFree( GetProcessHeap(), 0, lpBuffer );
1492 }
1493 return (LRESULT)n;
1494 }
1495 }
1496 }
1497 return 0;
1498}
1499
1500static LRESULT COMBO_GetTextLength(HWND hwnd,WPARAM wParam,LPARAM lParam)
1501{
1502 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1503
1504 if (!(lphc->wState & CBF_EDIT))
1505 {
1506 int idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1507
1508 if (idx == -1) return 0;
1509 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
1510 } else if (lphc->wState & CBF_EDIT)
1511 {
1512 /* Don't bother turning on CBF_NOEDITNOTIFY. */
1513 return SendMessageA( lphc->hWndEdit, WM_GETTEXTLENGTH, wParam, lParam );
1514 } else return CB_ERR;
1515}
1516
1517static LRESULT COMBO_HandleText(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1518{
1519 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1520
1521 if (lphc == NULL)
1522 {
1523 dprintf(("COMBO_HandleText Info Pointer NULL!\n"));
1524 return CB_ERR;
1525 }
1526
1527 if (lphc->wState & CBF_EDIT)
1528 {
1529 LRESULT res;
1530
1531 lphc->wState |= CBF_NOEDITNOTIFY;
1532 res = SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1533 lphc->wState &= ~CBF_NOEDITNOTIFY;
1534 return res;
1535 } else return CB_ERR;
1536}
1537
1538/***********************************************************************
1539 * CBResetPos
1540 *
1541 * This function sets window positions according to the updated
1542 * component placement struct.
1543 */
1544static void CBResetPos(
1545 LPHEADCOMBO lphc,
1546 LPRECT rectEdit,
1547 LPRECT rectLB,
1548 BOOL bRedraw)
1549{
1550 BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1551
1552 /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1553 * sizing messages */
1554
1555 if( lphc->wState & CBF_EDIT )
1556 SetWindowPos( lphc->hWndEdit, 0,
1557 rectEdit->left, rectEdit->top,
1558 rectEdit->right - rectEdit->left,
1559 rectEdit->bottom - rectEdit->top,
1560 SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1561
1562 SetWindowPos( lphc->hWndLBox, 0,
1563 rectLB->left, rectLB->top,
1564 rectLB->right - rectLB->left,
1565 rectLB->bottom - rectLB->top,
1566 SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1567
1568 if( bDrop )
1569 {
1570 if( lphc->wState & CBF_DROPPED )
1571 {
1572 lphc->wState &= ~CBF_DROPPED;
1573 ShowWindow( lphc->hWndLBox, SW_HIDE );
1574 }
1575
1576 if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1577 RedrawWindow( lphc->hwndself, NULL, 0,
1578 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1579 }
1580}
1581
1582
1583/***********************************************************************
1584 * COMBO_Size
1585 */
1586static LRESULT COMBO_Size(HWND hwnd,WPARAM wParam,LPARAM lParam)
1587{
1588 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1589
1590 dprintf(("COMBO_Size"));
1591
1592 if(lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
1593 {
1594 CBCalcPlacement(hwnd,
1595 lphc,
1596 &lphc->textRect,
1597 &lphc->buttonRect,
1598 &lphc->droppedRect);
1599
1600 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1601 }
1602
1603 return 0;
1604}
1605
1606
1607/***********************************************************************
1608 * COMBO_Font
1609 */
1610static LRESULT COMBO_SetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1611{
1612 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1613
1614 /*
1615 * Set the font
1616 */
1617 lphc->hFont = wParam;
1618
1619 /*
1620 * Propagate to owned windows.
1621 */
1622 if( lphc->wState & CBF_EDIT )
1623 SendMessageA(lphc->hWndEdit,WM_SETFONT,wParam,lParam);
1624 SendMessageA(lphc->hWndLBox,WM_SETFONT,wParam,lParam);
1625
1626 /*
1627 * Redo the layout of the control.
1628 */
1629 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1630 {
1631 CBCalcPlacement(hwnd,
1632 lphc,
1633 &lphc->textRect,
1634 &lphc->buttonRect,
1635 &lphc->droppedRect);
1636
1637 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1638 }
1639 else
1640 {
1641 CBForceDummyResize(lphc);
1642 }
1643
1644 return 0;
1645}
1646
1647static LRESULT COMBO_GetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1648{
1649 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1650
1651 return lphc->hFont;
1652}
1653
1654
1655/***********************************************************************
1656 * COMBO_LButtonDown
1657 */
1658static LRESULT COMBO_LButtonDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1659{
1660 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1661 POINT pt;
1662 BOOL bButton;
1663
1664 if(!(lphc->wState & CBF_FOCUSED)) SetFocus(hwnd);
1665 if(!(lphc->wState & CBF_FOCUSED)) return 0;
1666
1667 pt.x = LOWORD(lParam);
1668 pt.y = HIWORD(lParam);
1669 bButton = PtInRect(&lphc->buttonRect, pt);
1670
1671 if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1672 (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1673 {
1674 lphc->wState |= CBF_BUTTONDOWN;
1675 if( lphc->wState & CBF_DROPPED )
1676 {
1677 /* got a click to cancel selection */
1678
1679 lphc->wState &= ~CBF_BUTTONDOWN;
1680 CBRollUp( lphc, TRUE, FALSE );
1681 if( !IsWindow( hwnd ) ) return 0;
1682
1683 if( lphc->wState & CBF_CAPTURE )
1684 {
1685 lphc->wState &= ~CBF_CAPTURE;
1686 ReleaseCapture();
1687 }
1688 }
1689 else
1690 {
1691 /* drop down the listbox and start tracking */
1692
1693 lphc->wState |= CBF_CAPTURE;
1694 SetCapture( hwnd );
1695 CBDropDown( lphc );
1696 }
1697 if( bButton ) CBRepaintButton( lphc );
1698 }
1699
1700 return 0;
1701}
1702
1703/***********************************************************************
1704 * COMBO_LButtonUp
1705 *
1706 * Release capture and stop tracking if needed.
1707 */
1708static LRESULT COMBO_LButtonUp(HWND hwnd,WPARAM wParam,LPARAM lParam)
1709{
1710 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1711
1712 if( lphc->wState & CBF_CAPTURE )
1713 {
1714 lphc->wState &= ~CBF_CAPTURE;
1715 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1716 {
1717 INT index = CBUpdateLBox( lphc, TRUE );
1718
1719 lphc->wState |= CBF_NOLBSELECT;
1720 CBUpdateEdit( lphc, index );
1721 lphc->wState &= ~CBF_NOLBSELECT;
1722 }
1723 SetCapture(lphc->hWndLBox);
1724 }
1725
1726 if( lphc->wState & CBF_BUTTONDOWN )
1727 {
1728 lphc->wState &= ~CBF_BUTTONDOWN;
1729 CBRepaintButton( lphc );
1730 }
1731
1732 return 0;
1733}
1734
1735/***********************************************************************
1736 * COMBO_MouseMove
1737 *
1738 * Two things to do - track combo button and release capture when
1739 * pointer goes into the listbox.
1740 */
1741static LRESULT COMBO_MouseMove(HWND hwnd,WPARAM wParam,LPARAM lParam)
1742{
1743 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1744 POINT pt;
1745 RECT lbRect;
1746
1747 if(!(lphc->wState & CBF_CAPTURE)) return 0;
1748
1749 pt.x = LOWORD(lParam);
1750 pt.y = HIWORD(lParam);
1751
1752 if( lphc->wState & CBF_BUTTONDOWN )
1753 {
1754 BOOL bButton;
1755
1756 bButton = PtInRect(&lphc->buttonRect, pt);
1757
1758 if( !bButton )
1759 {
1760 lphc->wState &= ~CBF_BUTTONDOWN;
1761 CBRepaintButton( lphc );
1762 }
1763 }
1764
1765 GetClientRect( lphc->hWndLBox, &lbRect );
1766 MapWindowPoints(hwnd, lphc->hWndLBox, &pt, 1 );
1767 if( PtInRect(&lbRect, pt) )
1768 {
1769 lphc->wState &= ~CBF_CAPTURE;
1770 ReleaseCapture();
1771 if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc,TRUE );
1772
1773 /* hand over pointer tracking */
1774 SendMessageA( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
1775 }
1776
1777 return 0;
1778}
1779
1780static LRESULT COMBO_MouseWheel(HWND hwnd,WPARAM wParam,LPARAM lParam)
1781{
1782 if (wParam & (MK_SHIFT | MK_CONTROL))
1783 return DefWindowProcA(hwnd,WM_MOUSEWHEEL,wParam,lParam);
1784
1785 if ((short) HIWORD(wParam) > 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_UP,0);
1786 if ((short) HIWORD(wParam) < 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_DOWN,0);
1787
1788 return TRUE;
1789}
1790
1791static LRESULT COMBO_Enable(HWND hwnd,WPARAM wParam,LPARAM lParam)
1792{
1793 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1794
1795 if( lphc->wState & CBF_EDIT )
1796 EnableWindow( lphc->hWndEdit, (BOOL)wParam );
1797 EnableWindow( lphc->hWndLBox, (BOOL)wParam );
1798
1799 /* Force the control to repaint when the enabled state changes. */
1800 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1801
1802 return 0;
1803}
1804
1805static LRESULT COMBO_SetRedraw(HWND hwnd,WPARAM wParam,LPARAM lParam)
1806{
1807 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1808
1809 if( wParam )
1810 lphc->wState &= ~CBF_NOREDRAW;
1811 else
1812 lphc->wState |= CBF_NOREDRAW;
1813
1814 if( lphc->wState & CBF_EDIT )
1815 SendMessageA( lphc->hWndEdit, WM_SETREDRAW, wParam, lParam );
1816 SendMessageA( lphc->hWndLBox, WM_SETREDRAW, wParam, lParam );
1817
1818 return 0;
1819}
1820
1821static LRESULT COMBO_SysKeyDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1822{
1823 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1824
1825 if( KEYDATA_ALT & HIWORD(lParam) )
1826 if( wParam == VK_UP || wParam == VK_DOWN )
1827 COMBO_FlipListbox( lphc,FALSE,FALSE );
1828
1829 return 0;
1830}
1831
1832static LRESULT COMBO_HandleKey(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1833{
1834 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1835
1836 if (((CHAR)wParam == VK_RETURN || (CHAR)wParam == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
1837 {
1838 CBRollUp( lphc, (CHAR)wParam == VK_RETURN, FALSE );
1839 return TRUE;
1840 }
1841
1842 if( lphc->wState & CBF_EDIT )
1843 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1844 else
1845 return SendMessageA( lphc->hWndLBox, message, wParam, lParam );
1846}
1847
1848/* combobox messages */
1849
1850static LRESULT COMBO_AddString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1851{
1852 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1853
1854 return SendMessageA(lphc->hWndLBox,LB_ADDSTRING,0,lParam);
1855}
1856
1857static LRESULT COMBO_InsertString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1858{
1859 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1860
1861 return SendMessageA(lphc->hWndLBox,LB_INSERTSTRING,wParam,lParam);
1862}
1863
1864static LRESULT COMBO_DeleteString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1865{
1866 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1867
1868 return SendMessageA(lphc->hWndLBox,LB_DELETESTRING,wParam,0);
1869}
1870
1871/***********************************************************************
1872 * COMBO_SelectString
1873 */
1874static LRESULT COMBO_SelectString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1875{
1876 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1877 INT CurSel = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1878 INT index = SendMessageA(lphc->hWndLBox,LB_SELECTSTRING,wParam,lParam);
1879
1880 if( index >= 0 )
1881 {
1882 if( lphc->wState & CBF_EDIT )
1883 {
1884 if (CurSel != index)
1885 CBUpdateEdit( lphc, index );
1886 } else
1887 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1888 }
1889
1890 return (LRESULT)index;
1891}
1892
1893static LRESULT COMBO_FindString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1894{
1895 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1896
1897 return SendMessageA(lphc->hWndLBox,LB_FINDSTRING,wParam,lParam);
1898}
1899
1900static LRESULT COMBO_FindStringExact(HWND hwnd,WPARAM wParam,LPARAM lParam)
1901{
1902 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1903
1904 return SendMessageA(lphc->hWndLBox,LB_FINDSTRINGEXACT,wParam,lParam);
1905}
1906
1907/***********************************************************************
1908 * COMBO_SetItemHeight
1909 */
1910static LRESULT COMBO_SetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1911{
1912 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1913 LRESULT lRet = CB_ERR;
1914
1915 if( wParam == -1 ) /* set text field height */
1916 {
1917 if( lParam < 32768 )
1918 {
1919 lphc->editHeight = lParam;
1920
1921 /*
1922 * Redo the layout of the control.
1923 */
1924 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1925 {
1926 CBCalcPlacement(hwnd,
1927 lphc,
1928 &lphc->textRect,
1929 &lphc->buttonRect,
1930 &lphc->droppedRect);
1931
1932 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1933 }
1934 else
1935 {
1936 CBForceDummyResize(lphc);
1937 }
1938
1939 lRet = lParam;
1940 }
1941 }
1942 else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
1943 lRet = SendMessageA( lphc->hWndLBox, LB_SETITEMHEIGHT,
1944 wParam,lParam);
1945 return lRet;
1946}
1947
1948static LRESULT COMBO_GetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1949{
1950 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1951
1952 if( (INT)wParam >= 0 ) /* listbox item */
1953 return SendMessageA( lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
1954
1955 return CBGetTextAreaHeight(hwnd, lphc);
1956}
1957
1958static LRESULT COMBO_ResetContent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1959{
1960 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1961
1962 SendMessageA( lphc->hWndLBox, LB_RESETCONTENT, 0, 0 );
1963 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1964
1965 return TRUE;
1966}
1967
1968static LRESULT COMBO_InitStorage(HWND hwnd,WPARAM wParam,LPARAM lParam)
1969{
1970 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1971
1972 return SendMessageA( lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
1973}
1974
1975static LRESULT COMBO_GetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1976{
1977 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1978
1979 return SendMessageA( lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
1980}
1981
1982static LRESULT COMBO_SetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1983{
1984 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1985
1986 return SendMessageA( lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
1987}
1988
1989static LRESULT COMBO_GetTopIndex(HWND hwnd,WPARAM wParam,LPARAM lParam)
1990{
1991 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1992
1993 return SendMessageA( lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
1994}
1995
1996static LRESULT COMBO_GetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
1997{
1998 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1999
2000 return SendMessageA( lphc->hWndLBox, LB_GETLOCALE, 0, 0);
2001}
2002
2003static LRESULT COMBO_SetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
2004{
2005 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2006
2007 return SendMessageA( lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
2008}
2009
2010static LRESULT COMBO_GetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2011{
2012 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2013
2014 if( lphc->droppedWidth )
2015 return lphc->droppedWidth;
2016
2017 return lphc->droppedRect.right - lphc->droppedRect.left;
2018}
2019
2020static LRESULT COMBO_SetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2021{
2022 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2023
2024 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
2025 (INT)wParam < 32768 ) lphc->droppedWidth = (INT)wParam;
2026
2027 return CB_ERR;
2028}
2029
2030static LRESULT COMBO_GetDroppedControlRect(HWND hwnd,WPARAM wParam,LPARAM lParam)
2031{
2032 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2033
2034 if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
2035
2036 return CB_OKAY;
2037}
2038
2039static LRESULT COMBO_GetDroppedState(HWND hwnd,WPARAM wParam,LPARAM lParam)
2040{
2041 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2042
2043 return (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
2044}
2045
2046static LRESULT COMBO_Dir(HWND hwnd,WPARAM wParam,LPARAM lParam)
2047{
2048 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2049
2050 return COMBO_Directory( lphc, (UINT)wParam,
2051 (LPSTR)lParam,TRUE);
2052}
2053
2054static LRESULT COMBO_ShowDropDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
2055{
2056 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2057
2058 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
2059 {
2060 if( wParam )
2061 {
2062 if( !(lphc->wState & CBF_DROPPED) )
2063 CBDropDown( lphc );
2064 }
2065 else
2066 if( lphc->wState & CBF_DROPPED )
2067 CBRollUp( lphc, FALSE, TRUE );
2068 }
2069
2070 return TRUE;
2071}
2072
2073static LRESULT COMBO_GetCount(HWND hwnd,WPARAM wParam,LPARAM lParam)
2074{
2075 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2076
2077 return SendMessageA( lphc->hWndLBox, LB_GETCOUNT, 0, 0);
2078}
2079
2080static LRESULT COMBO_GetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2081{
2082 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2083
2084 return SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0);
2085}
2086
2087static LRESULT COMBO_SetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2088{
2089 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2090
2091 lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
2092 if( lParam >= 0 )
2093 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
2094 if( lphc->wState & CBF_SELCHANGE )
2095 {
2096 //SvL: Clear the flag here; doing it after calling CBUpdateEdit causes
2097 // an infinite loop in RealPlayer 7
2098 lphc->wState &= ~CBF_SELCHANGE;
2099
2100 /* no LBN_SELCHANGE in this case, update manually */
2101 if( lphc->wState & CBF_EDIT )
2102 CBUpdateEdit( lphc, (INT)wParam );
2103 else
2104 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
2105 }
2106
2107 return lParam;
2108}
2109
2110static LRESULT COMBO_GetLBText(HWND hwnd,WPARAM wParam,LPARAM lParam)
2111{
2112 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2113
2114 return SendMessageA( lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
2115}
2116
2117static LRESULT COMBO_GetLBTextLen(HWND hwnd,WPARAM wParam,LPARAM lParam)
2118{
2119 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2120
2121 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
2122}
2123
2124static LRESULT COMBO_GetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2125{
2126 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2127
2128 return SendMessageA( lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
2129}
2130
2131static LRESULT COMBO_SetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2132{
2133 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2134
2135 return SendMessageA( lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
2136}
2137
2138static LRESULT COMBO_GetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2139{
2140 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2141
2142 if( lphc->wState & CBF_EDIT )
2143 {
2144 INT a, b;
2145
2146 return SendMessageA( lphc->hWndEdit, EM_GETSEL,
2147 (wParam) ? wParam : (WPARAM)&a,
2148 (lParam) ? lParam : (LPARAM)&b );
2149 }
2150
2151 return CB_ERR;
2152}
2153
2154static LRESULT COMBO_SetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2155{
2156 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2157
2158 if( lphc->wState & CBF_EDIT )
2159 return SendMessageA( lphc->hWndEdit, EM_SETSEL,
2160 (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
2161
2162 return CB_ERR;
2163}
2164
2165static LRESULT COMBO_SetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2166{
2167 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2168
2169 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
2170 return CB_ERR;
2171 if( wParam )
2172 lphc->wState |= CBF_EUI;
2173 else lphc->wState &= ~CBF_EUI;
2174 return CB_OKAY;
2175}
2176
2177static LRESULT COMBO_GetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2178{
2179 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2180
2181 return (lphc->wState & CBF_EUI) ? TRUE : FALSE;
2182}
2183
2184/***********************************************************************
2185 * ComboWndProc
2186 *
2187 * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
2188 */
2189LRESULT WINAPI ComboWndProc( HWND hwnd, UINT message,
2190 WPARAM wParam, LPARAM lParam )
2191{
2192// dprintf(("ComboWndProc hwnd: %04x, msg %s, wp %08x lp %08lx\n",
2193// hwnd, GetMsgText(message), wParam, lParam));
2194
2195 switch(message)
2196 {
2197
2198 /* System messages */
2199
2200 case WM_NCCREATE:
2201 return COMBO_NCCreate(hwnd,wParam,lParam);
2202
2203 case WM_NCDESTROY:
2204 return COMBO_NCDestroy(hwnd,wParam,lParam);
2205
2206 case WM_CREATE:
2207 return COMBO_Create(hwnd,wParam,lParam);
2208
2209 case WM_PRINTCLIENT:
2210 return COMBO_PrintClient(hwnd,wParam,lParam);
2211
2212 case WM_PAINT:
2213 return COMBO_Paint(hwnd,wParam,lParam);
2214
2215 case WM_ERASEBKGND:
2216 return COMBO_EraseBackground(hwnd,wParam,lParam);
2217
2218 case WM_GETDLGCODE:
2219 return COMBO_GetDlgCode(hwnd,wParam,lParam);
2220
2221 case WM_WINDOWPOSCHANGING:
2222 return COMBO_WindowPosChanging(hwnd,wParam,lParam);
2223
2224 case WM_SIZE:
2225 return COMBO_Size(hwnd,wParam,lParam);
2226
2227 case WM_SETFONT:
2228 return COMBO_SetFont(hwnd,wParam,lParam);
2229
2230 case WM_GETFONT:
2231 return COMBO_GetFont(hwnd,wParam,lParam);
2232
2233 case WM_SETFOCUS:
2234 return COMBO_SetFocus(hwnd,wParam,lParam);
2235
2236 case WM_KILLFOCUS:
2237 return COMBO_KillFocus(hwnd,wParam,lParam);
2238
2239 case WM_COMMAND:
2240 return COMBO_Command(hwnd,wParam,lParam);
2241
2242 case WM_GETTEXT:
2243 return COMBO_GetText(hwnd,wParam,lParam);
2244
2245 case WM_GETTEXTLENGTH:
2246 return COMBO_GetTextLength(hwnd,wParam,lParam);
2247
2248 case WM_SETTEXT:
2249 case WM_CLEAR:
2250 case WM_CUT:
2251 case WM_PASTE:
2252 case WM_COPY:
2253 return COMBO_HandleText(hwnd,message,wParam,lParam);
2254
2255 case WM_DRAWITEM:
2256 case WM_DELETEITEM:
2257 case WM_COMPAREITEM:
2258 case WM_MEASUREITEM:
2259 return COMBO_HandleItem(hwnd,message,wParam,lParam);
2260
2261 case WM_ENABLE:
2262 return COMBO_Enable(hwnd,wParam,lParam);
2263
2264 case WM_SETREDRAW:
2265 return COMBO_SetRedraw(hwnd,wParam,lParam);
2266
2267 case WM_SYSKEYDOWN:
2268 return COMBO_SysKeyDown(hwnd,wParam,lParam);
2269
2270 case WM_CHAR:
2271 case WM_KEYDOWN:
2272 return COMBO_HandleKey(hwnd,message,wParam,lParam);
2273
2274 case WM_LBUTTONDOWN:
2275 return COMBO_LButtonDown(hwnd,wParam,lParam);
2276
2277 case WM_LBUTTONUP:
2278 return COMBO_LButtonUp(hwnd,wParam,lParam);
2279
2280 case WM_MOUSEMOVE:
2281 return COMBO_MouseMove(hwnd,wParam,lParam);
2282
2283 case WM_MOUSEWHEEL:
2284 return COMBO_MouseWheel(hwnd,wParam,lParam);
2285
2286 /* Combo messages */
2287
2288 case CB_ADDSTRING:
2289 return COMBO_AddString(hwnd,wParam,lParam);
2290
2291 case CB_INSERTSTRING:
2292 return COMBO_InsertString(hwnd,wParam,lParam);
2293
2294 case CB_DELETESTRING:
2295 return COMBO_DeleteString(hwnd,wParam,lParam);
2296
2297 case CB_SELECTSTRING:
2298 return COMBO_SelectString(hwnd,wParam,lParam);
2299
2300 case CB_FINDSTRING:
2301 return COMBO_FindString(hwnd,wParam,lParam);
2302
2303 case CB_FINDSTRINGEXACT:
2304 return COMBO_FindStringExact(hwnd,wParam,lParam);
2305
2306 case CB_SETITEMHEIGHT:
2307 return COMBO_SetItemHeight(hwnd,wParam,lParam);
2308
2309 case CB_GETITEMHEIGHT:
2310 return COMBO_GetItemHeight(hwnd,wParam,lParam);
2311
2312 case CB_RESETCONTENT:
2313 return COMBO_ResetContent(hwnd,wParam,lParam);
2314
2315 case CB_INITSTORAGE:
2316 return COMBO_InitStorage(hwnd,wParam,lParam);
2317
2318 case CB_GETHORIZONTALEXTENT:
2319 return COMBO_GetHorizontalExtent(hwnd,wParam,lParam);
2320
2321 case CB_SETHORIZONTALEXTENT:
2322 return COMBO_SetHorizontalExtent(hwnd,wParam,lParam);
2323
2324 case CB_GETTOPINDEX:
2325 return COMBO_GetTopIndex(hwnd,wParam,lParam);
2326
2327 case CB_GETLOCALE:
2328 return COMBO_GetLocale(hwnd,wParam,lParam);
2329
2330 case CB_SETLOCALE:
2331 return COMBO_SetLocale(hwnd,wParam,lParam);
2332
2333 case CB_GETDROPPEDWIDTH:
2334 return COMBO_GetDroppedWidth(hwnd,wParam,lParam);
2335
2336 case CB_SETDROPPEDWIDTH:
2337 return COMBO_SetDroppedWidth(hwnd,wParam,lParam);
2338
2339 case CB_GETDROPPEDCONTROLRECT:
2340 return COMBO_GetDroppedControlRect(hwnd,wParam,lParam);
2341
2342 case CB_GETDROPPEDSTATE:
2343 return COMBO_GetDroppedState(hwnd,wParam,lParam);
2344
2345 case CB_DIR:
2346 return COMBO_Dir(hwnd,wParam,lParam);
2347
2348 case CB_SHOWDROPDOWN:
2349 return COMBO_ShowDropDown(hwnd,wParam,lParam);
2350
2351 case CB_GETCOUNT:
2352 return COMBO_GetCount(hwnd,wParam,lParam);
2353
2354 case CB_GETCURSEL:
2355 return COMBO_GetCurSel(hwnd,wParam,lParam);
2356
2357 case CB_SETCURSEL:
2358 return COMBO_SetCurSel(hwnd,wParam,lParam);
2359
2360 case CB_GETLBTEXT:
2361 return COMBO_GetLBText(hwnd,wParam,lParam);
2362
2363 case CB_GETLBTEXTLEN:
2364 return COMBO_GetLBTextLen(hwnd,wParam,lParam);
2365
2366 case CB_GETITEMDATA:
2367 return COMBO_GetItemData(hwnd,wParam,lParam);
2368
2369 case CB_SETITEMDATA:
2370 return COMBO_SetItemData(hwnd,wParam,lParam);
2371
2372 case CB_GETEDITSEL:
2373 return COMBO_GetEditSel(hwnd,wParam,lParam);
2374
2375 case CB_SETEDITSEL:
2376 return COMBO_SetEditSel(hwnd,wParam,lParam);
2377
2378 case CB_SETEXTENDEDUI:
2379 return COMBO_SetExtendedUI(hwnd,wParam,lParam);
2380
2381 case CB_GETEXTENDEDUI:
2382 return COMBO_GetExtendedUI(hwnd,wParam,lParam);
2383
2384 //case (WM_USER + 0x1B):
2385 // WARN("[%04x]: undocumented msg!\n", hwnd );
2386 }
2387 return DefWindowProcA(hwnd, message, wParam, lParam);
2388}
2389
2390BOOL COMBOBOX_Register()
2391{
2392 WNDCLASSA wndClass;
2393
2394//SvL: Don't check this now
2395// if (GlobalFindAtomA(COMBOBOXCLASSNAME)) return FALSE;
2396
2397 ZeroMemory(&wndClass,sizeof(WNDCLASSA));
2398 wndClass.style = CS_GLOBALCLASS | CS_PARENTDC;
2399 wndClass.lpfnWndProc = (WNDPROC)ComboWndProc;
2400 wndClass.cbClsExtra = 0;
2401 wndClass.cbWndExtra = sizeof(VOID*);
2402 wndClass.hCursor = LoadCursorA(0,IDC_ARROWA);
2403 wndClass.hbrBackground = (HBRUSH)0;
2404 wndClass.lpszClassName = COMBOBOXCLASSNAME;
2405
2406 return RegisterClassA(&wndClass);
2407}
2408
2409BOOL COMBOBOX_Unregister()
2410{
2411 if (GlobalFindAtomA(COMBOBOXCLASSNAME))
2412 return UnregisterClassA(COMBOBOXCLASSNAME,(HINSTANCE)NULL);
2413 else return FALSE;
2414}
2415
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