source: trunk/src/user32/combo.cpp@ 2804

Last change on this file since 2804 was 2804, checked in by sandervl, 26 years ago

Added new logging feature
File size: 67.4 KB
Line 
1/* $Id: combo.cpp,v 1.26 2000-02-16 14:34:06 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: 20000212
11 * (WINE version: 991212)
12 *
13 * Status: in progress
14 * Version: ?.??
15 */
16
17/* CB: bugs
18 - problems with focus handling (Win32 <-> OS/2)
19 will be fixed soon
20 - several other bugs
21*/
22
23#include <string.h>
24#include <os2win.h>
25#include "controls.h"
26#include "combo.h"
27#include "initterm.h"
28
29#ifdef DEBUG
30char *GetMsgText(int Msg);
31#endif
32
33#define DBG_LOCALLOG DBG_combo
34#include "dbglocal.h"
35
36 /* bits in the dwKeyData */
37#define KEYDATA_ALT 0x2000
38#define KEYDATA_PREVSTATE 0x4000
39
40/*
41 * Additional combo box definitions
42 */
43
44#define CB_NOTIFY( lphc, code ) \
45 (SendMessageA( (lphc)->owner, WM_COMMAND, \
46 MAKEWPARAM(GetWindowLongA((lphc)->hwndself,GWL_ID), (code)), (lphc)->hwndself))
47#define CB_GETEDITTEXTLENGTH( lphc ) \
48 (SendMessageA( (lphc)->hWndEdit, WM_GETTEXTLENGTH, 0, 0 ))
49
50/*
51 * Look and feel dependant "constants"
52 */
53#define COMBO_YBORDERGAP 5
54#define COMBO_XBORDERSIZE() ( 2 )
55#define COMBO_YBORDERSIZE() ( 2 )
56#define COMBO_EDITBUTTONSPACE() ( 0 )
57#define EDIT_CONTROL_PADDING() ( 1 )
58
59/***********************************************************************
60 * COMBO_NCCreate
61 */
62static LRESULT COMBO_NCCreate(HWND hwnd,WPARAM wParam,LPARAM lParam)
63{
64 LPHEADCOMBO lphc;
65
66 if ( hwnd &&
67 (lphc = (LPHEADCOMBO)HeapAlloc(GetProcessHeap(), 0, sizeof(HEADCOMBO))) )
68 {
69 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
70 DWORD dwStyle = GetWindowLongA(hwnd,GWL_STYLE);
71 DWORD dwExStyle = GetWindowLongA(hwnd,GWL_EXSTYLE);
72
73 memset( lphc, 0, sizeof(HEADCOMBO) );
74 SetInfoPtr(hwnd,(DWORD)lphc);
75
76 /* some braindead apps do try to use scrollbar/border flags */
77
78 lphc->dwStyle = (lpcs->style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL));
79 dwStyle &= ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
80 SetWindowLongA(hwnd,GWL_STYLE,dwStyle);
81
82 /*
83 * We also have to remove the client edge style to make sure
84 * we don't end-up with a non client area.
85 */
86 dwExStyle &= ~(WS_EX_CLIENTEDGE);
87 SetWindowLongA(hwnd,GWL_EXSTYLE,dwExStyle);
88
89 if( !(lpcs->style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
90 lphc->dwStyle |= CBS_HASSTRINGS;
91 if( !(dwExStyle & WS_EX_NOPARENTNOTIFY) )
92 lphc->wState |= CBF_NOTIFY;
93
94 //TRACE("[0x%08x], style = %08x\n",
95 // (UINT)lphc, lphc->dwStyle );
96
97 return TRUE;
98 }
99 return FALSE;
100}
101
102/***********************************************************************
103 * COMBO_NCDestroy
104 */
105static LRESULT COMBO_NCDestroy(HWND hwnd,WPARAM wParam,LPARAM lParam)
106{
107 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
108
109 if( lphc )
110 {
111 //TRACE("[%04x]: freeing storage\n", CB_HWND(lphc));
112
113 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
114 DestroyWindow( lphc->hWndLBox );
115
116 HeapFree( GetProcessHeap(), 0, lphc );
117 SetInfoPtr(hwnd,0);
118 }
119
120 return DefWindowProcA(hwnd,WM_NCDESTROY,wParam,lParam);
121}
122
123/***********************************************************************
124 * CBGetTextAreaHeight
125 *
126 * This method will calculate the height of the text area of the
127 * combobox.
128 * The height of the text area is set in two ways.
129 * It can be set explicitely through a combobox message of through a
130 * WM_MEASUREITEM callback.
131 * If this is not the case, the height is set to 13 dialog units.
132 * This height was determined through experimentation.
133 */
134static INT CBGetTextAreaHeight(
135 HWND hwnd,
136 LPHEADCOMBO lphc)
137{
138 INT iTextItemHeight;
139
140 if( lphc->editHeight ) /* explicitly set height */
141 {
142 iTextItemHeight = lphc->editHeight;
143 }
144 else
145 {
146 TEXTMETRICA tm;
147 HDC hDC = GetDC(hwnd);
148 HFONT hPrevFont = 0;
149 INT baseUnitY;
150
151 if (lphc->hFont)
152 hPrevFont = SelectObject( hDC, lphc->hFont );
153
154 GetTextMetricsA(hDC, &tm);
155
156 baseUnitY = tm.tmHeight;
157
158 if( hPrevFont )
159 SelectObject( hDC, hPrevFont );
160
161 ReleaseDC(hwnd, hDC);
162
163 iTextItemHeight = ((13 * baseUnitY) / 8);
164
165 /*
166 * This "formula" calculates the height of the complete control.
167 * To calculate the height of the text area, we have to remove the
168 * borders.
169 */
170 iTextItemHeight -= 2*COMBO_YBORDERSIZE();
171 }
172
173 /*
174 * Check the ownerdraw case if we haven't asked the parent the size
175 * of the item yet.
176 */
177 if ( CB_OWNERDRAWN(lphc) &&
178 (lphc->wState & CBF_MEASUREITEM) )
179 {
180 MEASUREITEMSTRUCT measureItem;
181 RECT clientRect;
182 INT originalItemHeight = iTextItemHeight;
183
184 /*
185 * We use the client rect for the width of the item.
186 */
187 GetClientRect(hwnd, &clientRect);
188
189 lphc->wState &= ~CBF_MEASUREITEM;
190
191 /*
192 * Send a first one to measure the size of the text area
193 */
194 measureItem.CtlType = ODT_COMBOBOX;
195 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
196 measureItem.itemID = -1;
197 measureItem.itemWidth = clientRect.right;
198 measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
199 measureItem.itemData = 0;
200 SendMessageA(lphc->owner, WM_MEASUREITEM,
201 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
202 iTextItemHeight = 6 + measureItem.itemHeight;
203
204 /*
205 * Send a second one in the case of a fixed ownerdraw list to calculate the
206 * size of the list items. (we basically do this on behalf of the listbox)
207 */
208 if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
209 {
210 measureItem.CtlType = ODT_COMBOBOX;
211 measureItem.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
212 measureItem.itemID = 0;
213 measureItem.itemWidth = clientRect.right;
214 measureItem.itemHeight = originalItemHeight;
215 measureItem.itemData = 0;
216 SendMessageA(lphc->owner, WM_MEASUREITEM,
217 (WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
218 lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
219 }
220
221 /*
222 * Keep the size for the next time
223 */
224 lphc->editHeight = iTextItemHeight;
225 }
226
227 return iTextItemHeight;
228}
229
230/***********************************************************************
231 * CBForceDummyResize
232 *
233 * The dummy resize is used for listboxes that have a popup to trigger
234 * a re-arranging of the contents of the combobox and the recalculation
235 * of the size of the "real" control window.
236 */
237static void CBForceDummyResize(
238 LPHEADCOMBO lphc)
239{
240 RECT windowRect;
241 int newComboHeight;
242
243 newComboHeight = CBGetTextAreaHeight(CB_HWND(lphc),lphc) + 2*COMBO_YBORDERSIZE();
244
245 GetWindowRect(CB_HWND(lphc), &windowRect);
246
247 /*
248 * We have to be careful, resizing a combobox also has the meaning that the
249 * dropped rect will be resized. In this case, we want to trigger a resize
250 * to recalculate layout but we don't want to change the dropped rectangle
251 * So, we pass the height of text area of control as the height.
252 * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
253 * message.
254 */
255 SetWindowPos( CB_HWND(lphc),
256 (HWND)0,
257 0, 0,
258 windowRect.right - windowRect.left,
259 newComboHeight,
260 SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
261}
262
263/***********************************************************************
264 * CBCalcPlacement
265 *
266 * Set up component coordinates given valid lphc->RectCombo.
267 */
268static void CBCalcPlacement(
269 HWND hwnd,
270 LPHEADCOMBO lphc,
271 LPRECT lprEdit,
272 LPRECT lprButton,
273 LPRECT lprLB)
274{
275 /*
276 * Again, start with the client rectangle.
277 */
278 GetClientRect(hwnd, lprEdit);
279
280 /*
281 * Remove the borders
282 */
283 InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
284
285 /*
286 * Chop off the bottom part to fit with the height of the text area.
287 */
288 lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
289
290 /*
291 * The button starts the same vertical position as the text area.
292 */
293 CopyRect(lprButton, lprEdit);
294
295 /*
296 * If the combobox is "simple" there is no button.
297 */
298 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
299 lprButton->left = lprButton->right = lprButton->bottom = 0;
300 else
301 {
302 /*
303 * Let's assume the combobox button is the same width as the
304 * scrollbar button.
305 * size the button horizontally and cut-off the text area.
306 */
307 lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
308 lprEdit->right = lprButton->left;
309 }
310
311 /*
312 * In the case of a dropdown, there is an additional spacing between the
313 * text area and the button.
314 */
315 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
316 {
317 lprEdit->right -= COMBO_EDITBUTTONSPACE();
318 }
319
320 /*
321 * If we have an edit control, we space it away from the borders slightly.
322 */
323 if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
324 {
325 InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
326 }
327
328 /*
329 * Adjust the size of the listbox popup.
330 */
331 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
332 {
333 /*
334 * Use the client rectangle to initialize the listbox rectangle
335 */
336 GetClientRect(hwnd, lprLB);
337
338 /*
339 * Then, chop-off the top part.
340 */
341 lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
342 }
343 else
344 {
345 //SvL: Listbox size might have changed!
346 if(lphc->hWndLBox)
347 GetWindowRect(lphc->hWndLBox, lprLB);
348
349 /*
350 * Make sure the dropped width is as large as the combobox itself.
351 */
352 if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
353 {
354 lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
355
356 /*
357 * In the case of a dropdown, the popup listbox is offset to the right.
358 * so, we want to make sure it's flush with the right side of the
359 * combobox
360 */
361 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
362 lprLB->right -= COMBO_EDITBUTTONSPACE();
363 }
364 else
365 lprLB->right = lprLB->left + lphc->droppedWidth;
366 }
367
368 //TRACE("\ttext\t= (%i,%i-%i,%i)\n",
369 // lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom);
370
371 //TRACE("\tbutton\t= (%i,%i-%i,%i)\n",
372 // lprButton->left, lprButton->top, lprButton->right, lprButton->bottom);
373
374 //TRACE("\tlbox\t= (%i,%i-%i,%i)\n",
375 // lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
376}
377
378/***********************************************************************
379 * CBGetDroppedControlRect
380 */
381static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
382{
383 /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
384 of the combo box and the lower right corner of the listbox */
385
386 GetWindowRect(lphc->hwndself, lpRect);
387
388 lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
389 lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
390
391}
392
393/***********************************************************************
394 * COMBO_WindowPosChanging
395 */
396static LRESULT COMBO_WindowPosChanging(HWND hwnd,WPARAM wParam,LPARAM lParam)
397{
398 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
399 WINDOWPOS *posChanging = (WINDOWPOS*)lParam;
400
401 dprintf(("COMBO_WindowPosChanging"));
402
403 /*
404 * We need to override the WM_WINDOWPOSCHANGING method to handle all
405 * the non-simple comboboxes. The problem is that those controls are
406 * always the same height. We have to make sure they are not resized
407 * to another value.
408 */
409 if ( ( CB_GETTYPE(lphc) != CBS_SIMPLE ) &&
410 ((posChanging->flags & SWP_NOSIZE) == 0) )
411 {
412 int newComboHeight;
413
414 newComboHeight = CBGetTextAreaHeight(hwnd,lphc) +
415 2*COMBO_YBORDERSIZE();
416
417 /*
418 * Resizing a combobox has another side effect, it resizes the dropped
419 * rectangle as well. However, it does it only if the new height for the
420 * combobox is different than the height it should have. In other words,
421 * if the application resizing the combobox only had the intention to resize
422 * the actual control, for example, to do the layout of a dialog that is
423 * resized, the height of the dropdown is not changed.
424 */
425 if (posChanging->cy != newComboHeight)
426 {
427 lphc->droppedRect.bottom = lphc->droppedRect.top + posChanging->cy - newComboHeight;
428
429 posChanging->cy = newComboHeight;
430 }
431 }
432
433 return 0;
434}
435
436/***********************************************************************
437 * COMBO_Create
438 */
439static LRESULT COMBO_Create(HWND hwnd,WPARAM wParam,LPARAM lParam)
440{
441 static char clbName[] = "ComboLBox";
442 static char editName[] = "Edit";
443 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
444
445 LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
446
447 if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
448 if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
449
450 lphc->hwndself = hwnd;
451 lphc->owner = lpcs->hwndParent;
452
453 /*
454 * The item height and dropped width are not set when the control
455 * is created.
456 */
457 lphc->droppedWidth = lphc->editHeight = 0;
458
459 /*
460 * The first time we go through, we want to measure the ownerdraw item
461 */
462 lphc->wState |= CBF_MEASUREITEM;
463
464 /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
465
466 if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
467 {
468 UINT lbeStyle = 0;
469 UINT lbeExStyle = 0;
470
471 /*
472 * Initialize the dropped rect to the size of the client area of the
473 * control and then, force all the areas of the combobox to be
474 * recalculated.
475 */
476 GetClientRect( hwnd, &lphc->droppedRect );
477
478 CBCalcPlacement(hwnd,
479 lphc,
480 &lphc->textRect,
481 &lphc->buttonRect,
482 &lphc->droppedRect );
483
484 /*
485 * Adjust the position of the popup listbox if it's necessary
486 */
487 if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
488 {
489 lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
490
491 /*
492 * If it's a dropdown, the listbox is offset
493 */
494 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
495 lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
496
497 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect);
498 ClientToScreen(hwnd, (LPPOINT)&lphc->droppedRect.right);
499 }
500
501 /* create listbox popup */
502
503 lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS) |
504 (lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
505
506 if( lphc->dwStyle & CBS_SORT )
507 lbeStyle |= LBS_SORT;
508 if( lphc->dwStyle & CBS_HASSTRINGS )
509 lbeStyle |= LBS_HASSTRINGS;
510 if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
511 lbeStyle |= LBS_NOINTEGRALHEIGHT;
512 if( lphc->dwStyle & CBS_DISABLENOSCROLL )
513 lbeStyle |= LBS_DISABLENOSCROLL;
514
515 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
516 {
517 lbeStyle |= WS_CHILD | WS_VISIBLE;
518
519 /*
520 * In win 95 look n feel, the listbox in the simple combobox has
521 * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
522 */
523 lbeStyle &= ~WS_BORDER;
524 lbeExStyle |= WS_EX_CLIENTEDGE;
525 }
526 else /* popup listbox */
527 {
528 lbeStyle |= WS_POPUP;
529 lbeStyle |= WS_EX_TOOLWINDOW;
530 }
531
532 /* Dropdown ComboLBox is not a child window and we cannot pass
533 * ID_CB_LISTBOX directly because it will be treated as a menu handle.
534 */
535 lphc->hWndLBox = CreateWindowExA(lbeExStyle,
536 clbName,
537 NULL,
538 lbeStyle,
539 lphc->droppedRect.left,
540 lphc->droppedRect.top,
541 lphc->droppedRect.right - lphc->droppedRect.left,
542 lphc->droppedRect.bottom - lphc->droppedRect.top,
543 lphc->hwndself,
544 (lphc->dwStyle & CBS_DROPDOWN)? (HMENU)0 : (HMENU)ID_CB_LISTBOX,
545 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
546 (LPVOID)lphc );
547
548 /*
549 * The ComboLBox is a strange little beast (when it's not a CBS_SIMPLE)...
550 * It's a popup window but, when you get the window style, you get WS_CHILD.
551 * When created, it's parent is the combobox but, when you ask for it's parent
552 * after that, you're supposed to get the desktop. (see MFC code function
553 * AfxCancelModes)
554 * To achieve this in Wine, we have to create it as a popup and change
555 * it's style to child after the creation.
556 */
557 if ( (lphc->hWndLBox!= 0) &&
558 (CB_GETTYPE(lphc) != CBS_SIMPLE) )
559 {
560 /* Not using SetWindowLongA here because it doesn't allow us to
561 * change the WS_CHILD style. This code should be equivalent (excluding
562 * the change in owner) to:
563 * SetWindowLongA(lphc->hWndLBox, GWL_STYLE,
564 * (GetWindowLongA(lphc->hWndLBox,GWL_STYLE) | WS_CHILD) & ~WS_POPUP);
565 */
566 STYLESTRUCT style;
567 Win32BaseWindow *win32wnd = Win32BaseWindow::GetWindowFromHandle(lphc->hWndLBox);
568
569 if (!win32wnd)
570 {
571 /* Is this the right error? */
572 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
573 return 0;
574 }
575
576 /* save old style, set new style */
577 style.styleOld = win32wnd->getStyle();
578 style.styleNew = (style.styleOld | WS_CHILD) & ~WS_POPUP;
579
580 SendMessageA(lphc->hWndLBox,WM_STYLECHANGING,GWL_STYLE,(LPARAM)&style);
581#if 0 //CB: our code doesn't work with this style change
582 win32wnd->setStyle(style.styleNew);
583#endif
584 SendMessageA(lphc->hWndLBox,WM_STYLECHANGED,GWL_STYLE,(LPARAM)&style);
585
586 /* Set owner to NULL - it seems to be what Windows does to a ComboLBox
587 * after creation.
588 */
589 win32wnd->setOwner(NULL);
590 }
591
592 if( lphc->hWndLBox )
593 {
594 BOOL bEdit = TRUE;
595 lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT;
596
597 /*
598 * In Win95 look, the border fo the edit control is
599 * provided by the combobox
600 */
601 if( lphc->wState & CBF_EDIT )
602 {
603 if( lphc->dwStyle & CBS_OEMCONVERT )
604 lbeStyle |= ES_OEMCONVERT;
605 if( lphc->dwStyle & CBS_AUTOHSCROLL )
606 lbeStyle |= ES_AUTOHSCROLL;
607 if( lphc->dwStyle & CBS_LOWERCASE )
608 lbeStyle |= ES_LOWERCASE;
609 else if( lphc->dwStyle & CBS_UPPERCASE )
610 lbeStyle |= ES_UPPERCASE;
611
612 lphc->hWndEdit = CreateWindowExA(0,
613 editName,
614 NULL,
615 lbeStyle,
616 lphc->textRect.left, lphc->textRect.top,
617 lphc->textRect.right - lphc->textRect.left,
618 lphc->textRect.bottom - lphc->textRect.top,
619 lphc->hwndself,
620 (HMENU)ID_CB_EDIT,
621 GetWindowLongA(lphc->hwndself,GWL_HINSTANCE),
622 NULL );
623
624 if( !lphc->hWndEdit )
625 bEdit = FALSE;
626 }
627
628 if( bEdit )
629 {
630 /*
631 * If the combo is a dropdown, we must resize the control to fit only
632 * the text area and button. To do this, we send a dummy resize and the
633 * WM_WINDOWPOSCHANGING message will take care of setting the height for
634 * us.
635 */
636 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
637 {
638 CBForceDummyResize(lphc);
639 }
640
641 //TRACE("init done\n");
642 return hwnd;
643 }
644 //ERR("edit control failure.\n");
645 } //else ERR("listbox failure.\n");
646 } //else ERR("no owner for visible combo.\n");
647
648 /* CreateWindow() will send WM_NCDESTROY to cleanup */
649
650 return -1;
651}
652
653/***********************************************************************
654 * CBPaintButton
655 *
656 * Paint combo button (normal, pressed, and disabled states).
657 */
658static void CBPaintButton(
659 LPHEADCOMBO lphc,
660 HDC hdc,
661 RECT rectButton)
662{
663 if( lphc->wState & CBF_NOREDRAW )
664 return;
665
666
667 UINT buttonState = DFCS_SCROLLCOMBOBOX;
668
669 if (lphc->wState & CBF_BUTTONDOWN)
670 {
671 buttonState |= DFCS_PUSHED;
672 }
673
674 if (CB_DISABLED(lphc))
675 {
676 buttonState |= DFCS_INACTIVE;
677 }
678
679 DrawFrameControl(hdc,&rectButton,DFC_SCROLL,buttonState);
680}
681
682/***********************************************************************
683 * CBPaintText
684 *
685 * Paint CBS_DROPDOWNLIST text field / update edit control contents.
686 */
687static void CBPaintText(
688 LPHEADCOMBO lphc,
689 HDC hdc,
690 RECT rectEdit)
691{
692 INT id, size = 0;
693 LPSTR pText = NULL;
694
695 if( lphc->wState & CBF_NOREDRAW ) return;
696
697 /* follow Windows combobox that sends a bunch of text
698 * inquiries to its listbox while processing WM_PAINT. */
699
700 if( (id = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
701 {
702 size = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
703 if( (pText = (char*)HeapAlloc( GetProcessHeap(), 0, size + 1)) != NULL )
704 {
705 SendMessageA( lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText );
706 pText[size] = '\0'; /* just in case */
707 } else return;
708 }
709
710 if( lphc->wState & CBF_EDIT )
711 {
712 if( CB_HASSTRINGS(lphc) ) SetWindowTextA( lphc->hWndEdit, pText ? pText : "" );
713 if( lphc->wState & CBF_FOCUSED )
714 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
715 }
716 else /* paint text field ourselves */
717 {
718 UINT itemState;
719 HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
720
721 /*
722 * Give ourselves some space.
723 */
724 InflateRect( &rectEdit, -1, -1 );
725
726 if ( (lphc->wState & CBF_FOCUSED) &&
727 !(lphc->wState & CBF_DROPPED) )
728 {
729 /* highlight */
730
731 FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
732 SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
733 SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
734 itemState = ODS_SELECTED | ODS_FOCUS;
735 }
736 else
737 itemState = 0;
738
739 if( CB_OWNERDRAWN(lphc) )
740 {
741 DRAWITEMSTRUCT dis;
742 HRGN clipRegion;
743 DWORD dwStyle = GetWindowLongA(lphc->hwndself,GWL_STYLE);
744
745 /*
746 * Save the current clip region.
747 * To retrieve the clip region, we need to create one "dummy"
748 * clip region.
749 */
750 clipRegion = CreateRectRgnIndirect(&rectEdit);
751
752 if (GetClipRgn(hdc, clipRegion)!=1)
753 {
754 DeleteObject(clipRegion);
755 clipRegion=(HRGN)NULL;
756 }
757
758 if ( dwStyle & WS_DISABLED )
759 itemState |= ODS_DISABLED;
760
761 dis.CtlType = ODT_COMBOBOX;
762 dis.CtlID = GetWindowLongA(lphc->hwndself,GWL_ID);
763 dis.hwndItem = lphc->hwndself;
764 dis.itemAction = ODA_DRAWENTIRE;
765 dis.itemID = id;
766 dis.itemState = itemState;
767 dis.hDC = hdc;
768 dis.rcItem = rectEdit;
769 dis.itemData = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA,
770 (WPARAM)id, 0 );
771
772 /*
773 * Clip the DC and have the parent draw the item.
774 */
775 IntersectClipRect(hdc,
776 rectEdit.left, rectEdit.top,
777 rectEdit.right, rectEdit.bottom);
778
779 SendMessageA(lphc->owner, WM_DRAWITEM,
780 GetWindowLongA(lphc->hwndself,GWL_ID), (LPARAM)&dis );
781
782 /*
783 * Reset the clipping region.
784 */
785 SelectClipRgn(hdc, clipRegion);
786 }
787 else
788 {
789 ExtTextOutA( hdc,
790 rectEdit.left + 1,
791 rectEdit.top + 1,
792 ETO_OPAQUE | ETO_CLIPPED,
793 &rectEdit,
794 pText ? pText : "" , size, NULL );
795
796 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
797 DrawFocusRect( hdc, &rectEdit );
798 }
799
800 if( hPrevFont )
801 SelectObject(hdc, hPrevFont );
802 }
803 if (pText)
804 HeapFree( GetProcessHeap(), 0, pText );
805}
806
807/***********************************************************************
808 * CBPaintBorder
809 */
810static void CBPaintBorder(
811 HWND hwnd,
812 LPHEADCOMBO lphc,
813 HDC hdc)
814{
815 RECT clientRect;
816
817 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
818 {
819 GetClientRect(hwnd, &clientRect);
820 }
821 else
822 {
823 CopyRect(&clientRect, &lphc->textRect);
824
825 InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
826 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
827 }
828
829 DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
830}
831
832/***********************************************************************
833 * COMBO_PrepareColors
834 *
835 * This method will sent the appropriate WM_CTLCOLOR message to
836 * prepare and setup the colors for the combo's DC.
837 *
838 * It also returns the brush to use for the background.
839 */
840static HBRUSH COMBO_PrepareColors(
841 HWND hwnd,
842 LPHEADCOMBO lphc,
843 HDC hDC)
844{
845 HBRUSH hBkgBrush;
846
847 /*
848 * Get the background brush for this control.
849 */
850 if (CB_DISABLED(lphc))
851 {
852 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORSTATIC,
853 hDC, lphc->hwndself );
854
855 /*
856 * We have to change the text color since WM_CTLCOLORSTATIC will
857 * set it to the "enabled" color. This is the same behavior as the
858 * edit control
859 */
860 SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
861 }
862 else
863 {
864 if (lphc->wState & CBF_EDIT)
865 {
866 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLOREDIT,
867 hDC, lphc->hwndself );
868 }
869 else
870 {
871 hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
872 hDC, lphc->hwndself );
873 }
874 }
875
876 /*
877 * Catch errors.
878 */
879 if( !hBkgBrush )
880 hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
881
882 return hBkgBrush;
883}
884
885/***********************************************************************
886 * COMBO_EraseBackground
887 */
888static LRESULT COMBO_EraseBackground(HWND hwnd,WPARAM wParam,LPARAM lParam)
889{
890 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
891 HBRUSH hBkgBrush;
892 RECT clientRect;
893 HDC hDC;
894
895 hDC = (wParam) ? (HDC)wParam:GetDC(hwnd);
896
897 /*
898 * Calculate the area that we want to erase.
899 */
900 if (CB_GETTYPE(lphc) != CBS_SIMPLE)
901 {
902 GetClientRect(hwnd, &clientRect);
903 }
904 else
905 {
906 CopyRect(&clientRect, &lphc->textRect);
907
908 InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
909 }
910
911 /*
912 * Retrieve the background brush
913 */
914 hBkgBrush = COMBO_PrepareColors(hwnd, lphc, hDC);
915
916 FillRect(hDC, &clientRect, hBkgBrush);
917
918 if (!wParam)
919 ReleaseDC(hwnd, hDC);
920
921 return TRUE;
922}
923
924static LRESULT COMBO_GetDlgCode(HWND hwnd,WPARAM wParam,LPARAM lParam)
925{
926 return DLGC_WANTARROWS | DLGC_WANTCHARS;
927}
928
929/***********************************************************************
930 * COMBO_Paint
931 */
932static LRESULT COMBO_Paint(HWND hwnd,WPARAM wParam,LPARAM lParam)
933{
934 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
935 PAINTSTRUCT ps;
936 HDC hDC;
937
938 hDC = (wParam) ? (HDC)wParam:BeginPaint(hwnd,&ps);
939
940
941 if( hDC && !(lphc->wState & CBF_NOREDRAW) )
942 {
943 HBRUSH hPrevBrush, hBkgBrush;
944
945 /*
946 * Retrieve the background brush and select it in the
947 * DC.
948 */
949 hBkgBrush = COMBO_PrepareColors(hwnd,lphc,hDC);
950
951 hPrevBrush = SelectObject( hDC, hBkgBrush );
952
953 /*
954 * In non 3.1 look, there is a sunken border on the combobox
955 */
956 CBPaintBorder(CB_HWND(lphc), lphc, hDC);
957
958 if( !IsRectEmpty(&lphc->buttonRect) )
959 {
960 CBPaintButton(lphc, hDC, lphc->buttonRect);
961 }
962
963 if( !(lphc->wState & CBF_EDIT) )
964 {
965 /*
966 * The text area has a border only in Win 3.1 look.
967 */
968
969 CBPaintText( lphc, hDC, lphc->textRect);
970 }
971
972 if( hPrevBrush )
973 SelectObject( hDC, hPrevBrush );
974 }
975
976 if(!wParam) EndPaint(hwnd,&ps);
977
978 return 0;
979}
980
981static LRESULT COMBO_PrintClient(HWND hwnd,WPARAM wParam,LPARAM lParam)
982{
983 if (lParam & PRF_ERASEBKGND) COMBO_EraseBackground(hwnd,wParam,lParam);
984
985 return COMBO_Paint(hwnd,wParam,lParam);
986}
987
988/***********************************************************************
989 * CBUpdateLBox
990 *
991 * Select listbox entry according to the contents of the edit control.
992 */
993static INT CBUpdateLBox( LPHEADCOMBO lphc )
994{
995 INT length, idx;
996 LPSTR pText = NULL;
997
998 idx = LB_ERR;
999 length = CB_GETEDITTEXTLENGTH( lphc );
1000
1001 if( length > 0 )
1002 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1003
1004 //TRACE("\t edit text length %i\n", length );
1005
1006 if( pText )
1007 {
1008 if( length ) GetWindowTextA( lphc->hWndEdit, pText, length + 1);
1009 else pText[0] = '\0';
1010 idx = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
1011 (WPARAM)(-1), (LPARAM)pText );
1012 HeapFree( GetProcessHeap(), 0, pText );
1013 }
1014
1015 if( idx >= 0 )
1016 {
1017 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)idx, 0 );
1018 /* probably superfluous but Windows sends this too */
1019 SendMessageA( lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)idx, 0 );
1020 }
1021 return idx;
1022}
1023
1024/***********************************************************************
1025 * CBUpdateEdit
1026 *
1027 * Copy a listbox entry to the edit control.
1028 */
1029static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
1030{
1031 INT length;
1032 LPSTR pText = NULL;
1033
1034 //TRACE("\t %i\n", index );
1035
1036 if( index >= 0 ) /* got an entry */
1037 {
1038 length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
1039 if( length )
1040 {
1041 pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
1042 if(pText)
1043 {
1044 SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1045 (WPARAM)index, (LPARAM)pText );
1046 }
1047 }
1048 }
1049 lphc->wState |= CBF_NOEDITNOTIFY;
1050
1051 SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)"" );
1052 if( lphc->wState & CBF_FOCUSED )
1053 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1054
1055
1056 if( pText )
1057 HeapFree( GetProcessHeap(), 0, pText );
1058}
1059
1060/***********************************************************************
1061 * CBDropDown
1062 *
1063 * Show listbox popup.
1064 */
1065static void CBDropDown( LPHEADCOMBO lphc )
1066{
1067 RECT rect;
1068 int nItems = 0;
1069 int i;
1070 int nHeight;
1071 int nDroppedHeight,nTempDroppedHeight;
1072 int screenH
1073
1074 //TRACE("[%04x]: drop down\n", CB_HWND(lphc));
1075
1076 CB_NOTIFY( lphc, CBN_DROPDOWN );
1077
1078 /* set selection */
1079
1080 lphc->wState |= CBF_DROPPED;
1081 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1082 {
1083 lphc->droppedIndex = CBUpdateLBox( lphc );
1084
1085 if( !(lphc->wState & CBF_CAPTURE) )
1086 CBUpdateEdit( lphc, lphc->droppedIndex );
1087 }
1088 else
1089 {
1090 lphc->droppedIndex = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1091
1092 if( lphc->droppedIndex == LB_ERR )
1093 lphc->droppedIndex = 0;
1094
1095 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)lphc->droppedIndex, 0 );
1096 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1097 }
1098
1099 /* now set popup position */
1100 GetWindowRect( lphc->hwndself, &rect );
1101
1102 /*
1103 * If it's a dropdown, the listbox is offset
1104 */
1105 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1106 rect.left += COMBO_EDITBUTTONSPACE();
1107
1108 /* if the dropped height is greater than the total height of the dropped
1109 items list, then force the drop down list height to be the total height
1110 of the items in the dropped list */
1111
1112 /* And Remove any extra space (Best Fit) */
1113 nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
1114 nItems = (int)SendMessageA (lphc->hWndLBox, LB_GETCOUNT, 0, 0);
1115 nHeight = COMBO_YBORDERSIZE();
1116 nTempDroppedHeight = 0;
1117 for (i = 0; i < nItems; i++)
1118 {
1119 nHeight += (int)SendMessageA (lphc->hWndLBox, LB_GETITEMHEIGHT, i, 0);
1120
1121 /* Did we pass the limit of what can be displayed */
1122 if (nHeight > nDroppedHeight)
1123 {
1124 break;
1125 }
1126 nTempDroppedHeight = nHeight;
1127 }
1128
1129 nDroppedHeight = nTempDroppedHeight;
1130
1131 /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
1132 screenH = GetSystemMetrics(SM_CYSCREEN);
1133 if((rect.bottom + nDroppedHeight) >= screenH)
1134 {
1135 SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.top - nDroppedHeight,
1136 lphc->droppedRect.right - lphc->droppedRect.left,
1137 nDroppedHeight,
1138 SWP_NOACTIVATE | SWP_NOREDRAW);
1139 }
1140 else
1141 {
1142 SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.bottom,
1143 lphc->droppedRect.right - lphc->droppedRect.left,
1144 nDroppedHeight,
1145 SWP_NOACTIVATE | SWP_NOREDRAW);
1146 }
1147
1148 if( !(lphc->wState & CBF_NOREDRAW) )
1149 RedrawWindow( lphc->hwndself, NULL, 0, RDW_INVALIDATE |
1150 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1151
1152 ShowWindow( lphc->hWndLBox, SW_SHOWNA );
1153}
1154
1155/***********************************************************************
1156 * CBRollUp
1157 *
1158 * Hide listbox popup.
1159 */
1160static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
1161{
1162 HWND hWnd = lphc->hwndself;
1163
1164 CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
1165
1166 if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
1167 {
1168
1169 //TRACE("[%04x]: roll up [%i]\n", CB_HWND(lphc), (INT)ok );
1170
1171 if( lphc->wState & CBF_DROPPED )
1172 {
1173 RECT rect;
1174
1175 lphc->wState &= ~CBF_DROPPED;
1176 ShowWindow( lphc->hWndLBox, SW_HIDE );
1177 if(GetCapture() == lphc->hWndLBox)
1178 {
1179 ReleaseCapture();
1180 }
1181
1182 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1183 {
1184 INT index = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1185 CBUpdateEdit( lphc, index );
1186 rect = lphc->buttonRect;
1187 }
1188 else
1189 {
1190 if( bButton )
1191 {
1192 UnionRect( &rect,
1193 &lphc->buttonRect,
1194 &lphc->textRect);
1195 }
1196 else
1197 rect = lphc->textRect;
1198
1199 bButton = TRUE;
1200 }
1201
1202 if( bButton && !(lphc->wState & CBF_NOREDRAW) )
1203 RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
1204 RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
1205 CB_NOTIFY( lphc, CBN_CLOSEUP );
1206 }
1207 }
1208}
1209
1210/***********************************************************************
1211 * COMBO_FlipListbox
1212 *
1213 * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
1214 */
1215BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL bRedrawButton )
1216{
1217 if( lphc->wState & CBF_DROPPED )
1218 {
1219 CBRollUp( lphc, TRUE, bRedrawButton );
1220 return FALSE;
1221 }
1222
1223 CBDropDown( lphc );
1224 return TRUE;
1225}
1226
1227/***********************************************************************
1228 * COMBO_GetLBWindow
1229 *
1230 * Edit control helper.
1231 */
1232HWND COMBO_GetLBWindow( HWND hwnd )
1233{
1234 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1235
1236 return lphc ? lphc->hWndLBox:0;
1237}
1238
1239
1240/***********************************************************************
1241 * CBRepaintButton
1242 */
1243static void CBRepaintButton( LPHEADCOMBO lphc )
1244 {
1245 InvalidateRect(CB_HWND(lphc), &lphc->buttonRect, TRUE);
1246 UpdateWindow(CB_HWND(lphc));
1247}
1248
1249static VOID COMBO_EditSetFocus(LPHEADCOMBO lphc)
1250{
1251 if(!(lphc->wState & CBF_FOCUSED))
1252 {
1253 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1254 SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
1255
1256 lphc->wState |= CBF_FOCUSED;
1257
1258 if( !(lphc->wState & CBF_EDIT) )
1259 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1260
1261 CB_NOTIFY( lphc, CBN_SETFOCUS );
1262 }
1263}
1264
1265/***********************************************************************
1266 * COMBO_SetFocus
1267 */
1268static LRESULT COMBO_SetFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1269{
1270 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1271
1272//SvL: This doesn't work. Example:
1273// Click on combo box in Abiword (when it doesn't have the focus)
1274// COMBO_LButtonDown checks focus, not set -> SetFocus to combo box
1275// Next thing it does is check if it has the focus (CBF_FOCUSED flag).
1276// This check fails as SetFocus(lphc->hWndEdit) doesn't change this flag.
1277// Removing this check doesn't work as the listbox is not removed after it
1278// loses the focus.
1279// if(lphc->wState & CBF_EDIT)
1280// SetFocus(lphc->hWndEdit);
1281// else
1282 COMBO_EditSetFocus(lphc);
1283
1284 return 0;
1285}
1286
1287static VOID COMBO_EditKillFocus(LPHEADCOMBO lphc)
1288{
1289 if( lphc->wState & CBF_FOCUSED )
1290 {
1291 CBRollUp( lphc, FALSE, TRUE );
1292 if( IsWindow( lphc->hwndself ) )
1293 {
1294 if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
1295 SendMessageA( lphc->hWndLBox, LB_CARETOFF, 0, 0 );
1296
1297 lphc->wState &= ~CBF_FOCUSED;
1298
1299 /* redraw text */
1300 if( !(lphc->wState & CBF_EDIT) )
1301 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1302
1303 CB_NOTIFY( lphc, CBN_KILLFOCUS );
1304 }
1305 }
1306}
1307
1308/***********************************************************************
1309 * COMBO_KillFocus
1310 */
1311static LRESULT COMBO_KillFocus(HWND hwnd,WPARAM wParam,LPARAM lParam)
1312{
1313 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1314
1315 if(!wParam || (wParam != lphc->hWndEdit && wParam != lphc->hWndLBox ))
1316 {
1317 COMBO_EditKillFocus(lphc);
1318 }
1319
1320 return 0;
1321}
1322
1323/***********************************************************************
1324 * COMBO_Command
1325 */
1326static LRESULT COMBO_Command(HWND hwnd,WPARAM wParam,LPARAM lParam)
1327{
1328 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1329
1330 if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == lParam )
1331 {
1332 /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
1333
1334 switch( HIWORD(wParam) >> 8 )
1335 {
1336 case (EN_SETFOCUS >> 8):
1337
1338 //TRACE("[%04x]: edit [%04x] got focus\n",
1339 // CB_HWND(lphc), lphc->hWndEdit );
1340
1341 COMBO_EditSetFocus(lphc);
1342 break;
1343
1344 case (EN_KILLFOCUS >> 8):
1345
1346 //TRACE("[%04x]: edit [%04x] lost focus\n",
1347 // CB_HWND(lphc), lphc->hWndEdit );
1348
1349 /* NOTE: it seems that Windows' edit control sends an
1350 * undocumented message WM_USER + 0x1B instead of this
1351 * notification (only when it happens to be a part of
1352 * the combo). ?? - AK.
1353 */
1354
1355 COMBO_EditKillFocus(lphc);
1356 break;
1357
1358
1359 case (EN_CHANGE >> 8):
1360 /*
1361 * In some circumstances (when the selection of the combobox
1362 * is changed for example) we don't wans the EN_CHANGE notification
1363 * to be forwarded to the parent of the combobox. This code
1364 * checks a flag that is set in these occasions and ignores the
1365 * notification.
1366 */
1367 if (lphc->wState & CBF_NOEDITNOTIFY)
1368 {
1369 lphc->wState &= ~CBF_NOEDITNOTIFY;
1370 }
1371 else
1372 {
1373 CB_NOTIFY( lphc, CBN_EDITCHANGE );
1374 }
1375
1376 if (lphc->wState & CBF_NOLBSELECT)
1377 {
1378 lphc->wState &= ~CBF_NOLBSELECT;
1379 }
1380 else
1381 {
1382 CBUpdateLBox( lphc );
1383 }
1384 break;
1385
1386 case (EN_UPDATE >> 8):
1387 CB_NOTIFY( lphc, CBN_EDITUPDATE );
1388 break;
1389
1390 case (EN_ERRSPACE >> 8):
1391 CB_NOTIFY( lphc, CBN_ERRSPACE );
1392 }
1393 }
1394 else if( lphc->hWndLBox == lParam )
1395 {
1396 switch( HIWORD(wParam) )
1397 {
1398 case LBN_ERRSPACE:
1399 CB_NOTIFY( lphc, CBN_ERRSPACE );
1400 break;
1401
1402 case LBN_DBLCLK:
1403 CB_NOTIFY( lphc, CBN_DBLCLK );
1404 break;
1405
1406 case LBN_SELCHANGE:
1407 case LBN_SELCANCEL:
1408
1409 //TRACE("[%04x]: lbox selection change [%04x]\n",
1410 // CB_HWND(lphc), lphc->wState );
1411
1412 /* do not roll up if selection is being tracked
1413 * by arrowkeys in the dropdown listbox */
1414
1415 if( (lphc->dwStyle & CBS_SIMPLE) ||
1416 ((lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP)) )
1417 {
1418 CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
1419 }
1420 else lphc->wState &= ~CBF_NOROLLUP;
1421
1422 if( lphc->wState & CBF_EDIT )
1423 {
1424 INT index = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
1425
1426 lphc->wState |= CBF_NOLBSELECT;
1427 CBUpdateEdit( lphc, index );
1428 /* select text in edit, as Windows does */
1429 SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
1430 }
1431 else
1432 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1433
1434 CB_NOTIFY( lphc, CBN_SELCHANGE );
1435 /* fall through */
1436
1437 case LBN_SETFOCUS:
1438 case LBN_KILLFOCUS:
1439 /* nothing to do here since ComboLBox always resets the focus to its
1440 * combo/edit counterpart */
1441 break;
1442 }
1443 }
1444 return 0;
1445}
1446
1447/***********************************************************************
1448 * COMBO_HandleItem
1449 *
1450 * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
1451 */
1452static LRESULT COMBO_HandleItem(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
1453{
1454 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1455
1456 //TRACE("[%04x]: ownerdraw op %04x\n", CB_HWND(lphc), msg );
1457
1458#define lpIS ((LPDELETEITEMSTRUCT)lParam)
1459
1460 /* two first items are the same in all 4 structs */
1461 lpIS->CtlType = ODT_COMBOBOX;
1462 lpIS->CtlID = GetWindowLongA(hwnd,GWL_ID);
1463
1464 switch( msg ) /* patch window handle */
1465 {
1466 case WM_DELETEITEM:
1467 lpIS->hwndItem = hwnd;
1468#undef lpIS
1469 break;
1470 case WM_DRAWITEM:
1471#define lpIS ((LPDRAWITEMSTRUCT)lParam)
1472 lpIS->hwndItem = hwnd;
1473#undef lpIS
1474 break;
1475 case WM_COMPAREITEM:
1476#define lpIS ((LPCOMPAREITEMSTRUCT)lParam)
1477 lpIS->hwndItem = hwnd;
1478#undef lpIS
1479 break;
1480 }
1481
1482 return SendMessageA( lphc->owner, msg, GetWindowLongA(hwnd,GWL_ID), lParam );
1483}
1484
1485/***********************************************************************
1486 * COMBO_GetText
1487 */
1488static LRESULT COMBO_GetText(HWND hwnd,WPARAM wParam,LPARAM lParam)
1489{
1490 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1491
1492 if( lphc->wState & CBF_EDIT )
1493 return SendMessageA( lphc->hWndEdit, WM_GETTEXT,
1494 wParam,lParam);
1495
1496 /* get it from the listbox */
1497
1498 if( lphc->hWndLBox )
1499 {
1500 INT idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1501 if( idx != LB_ERR )
1502 {
1503 LPSTR lpBuffer;
1504 INT length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN,
1505 (WPARAM)idx, 0 );
1506
1507 /* 'length' is without the terminating character */
1508 if( length >= (UINT)wParam )
1509 lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
1510 else
1511 lpBuffer = (LPSTR)lParam;
1512
1513 if( lpBuffer )
1514 {
1515 INT n = SendMessageA( lphc->hWndLBox, LB_GETTEXT,
1516 (WPARAM)idx, (LPARAM)lpBuffer );
1517
1518 /* truncate if buffer is too short */
1519
1520 if( length >= (UINT)wParam )
1521 {
1522 if ((UINT)wParam && lParam) {
1523 if( n != LB_ERR ) memcpy( (LPSTR)lParam, lpBuffer, ((UINT)wParam>n) ? n+1 : (UINT)wParam-1 );
1524 ((LPSTR)lParam)[(UINT)wParam - 1] = '\0';
1525 }
1526 HeapFree( GetProcessHeap(), 0, lpBuffer );
1527 }
1528 return (LRESULT)n;
1529 }
1530 }
1531 }
1532 return 0;
1533}
1534
1535static LRESULT COMBO_HandleText(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1536{
1537 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1538
1539 if (lphc == NULL)
1540 {
1541 dprintf(("COMBO_HandleText Info Pointer NULL!\n"));
1542 return CB_ERR;
1543 }
1544
1545 if ((message == WM_GETTEXTLENGTH) && !(lphc->wState & CBF_EDIT))
1546 {
1547 int j = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
1548
1549 if (j == -1) return 0;
1550 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, j, 0);
1551 } else if( lphc->wState & CBF_EDIT )
1552 {
1553 lphc->wState |= CBF_NOEDITNOTIFY;
1554
1555 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1556 } else return CB_ERR;
1557}
1558
1559/***********************************************************************
1560 * CBResetPos
1561 *
1562 * This function sets window positions according to the updated
1563 * component placement struct.
1564 */
1565static void CBResetPos(
1566 LPHEADCOMBO lphc,
1567 LPRECT rectEdit,
1568 LPRECT rectLB,
1569 BOOL bRedraw)
1570{
1571 BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1572
1573 /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1574 * sizing messages */
1575
1576 if( lphc->wState & CBF_EDIT )
1577 SetWindowPos( lphc->hWndEdit, 0,
1578 rectEdit->left, rectEdit->top,
1579 rectEdit->right - rectEdit->left,
1580 rectEdit->bottom - rectEdit->top,
1581 SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1582
1583 SetWindowPos( lphc->hWndLBox, 0,
1584 rectLB->left, rectLB->top,
1585 rectLB->right - rectLB->left,
1586 rectLB->bottom - rectLB->top,
1587 SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1588
1589 if( bDrop )
1590 {
1591 if( lphc->wState & CBF_DROPPED )
1592 {
1593 lphc->wState &= ~CBF_DROPPED;
1594 ShowWindow( lphc->hWndLBox, SW_HIDE );
1595 }
1596
1597 if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1598 RedrawWindow( lphc->hwndself, NULL, 0,
1599 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1600 }
1601}
1602
1603
1604/***********************************************************************
1605 * COMBO_Size
1606 */
1607static LRESULT COMBO_Size(HWND hwnd,WPARAM wParam,LPARAM lParam)
1608{
1609 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1610
1611 dprintf(("COMBO_Size"));
1612
1613 if(lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
1614 {
1615 CBCalcPlacement(hwnd,
1616 lphc,
1617 &lphc->textRect,
1618 &lphc->buttonRect,
1619 &lphc->droppedRect);
1620
1621 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1622 }
1623
1624 return 0;
1625}
1626
1627
1628/***********************************************************************
1629 * COMBO_Font
1630 */
1631static LRESULT COMBO_SetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1632{
1633 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1634
1635 /*
1636 * Set the font
1637 */
1638 lphc->hFont = wParam;
1639
1640 /*
1641 * Propagate to owned windows.
1642 */
1643 if( lphc->wState & CBF_EDIT )
1644 SendMessageA(lphc->hWndEdit,WM_SETFONT,wParam,lParam);
1645 SendMessageA(lphc->hWndLBox,WM_SETFONT,wParam,lParam);
1646
1647 /*
1648 * Redo the layout of the control.
1649 */
1650 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1651 {
1652 CBCalcPlacement(hwnd,
1653 lphc,
1654 &lphc->textRect,
1655 &lphc->buttonRect,
1656 &lphc->droppedRect);
1657
1658 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1659 }
1660 else
1661 {
1662 CBForceDummyResize(lphc);
1663 }
1664
1665 return 0;
1666}
1667
1668static LRESULT COMBO_GetFont(HWND hwnd,WPARAM wParam,LPARAM lParam)
1669{
1670 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1671
1672 return lphc->hFont;
1673}
1674
1675
1676/***********************************************************************
1677 * COMBO_LButtonDown
1678 */
1679static LRESULT COMBO_LButtonDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1680{
1681 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1682 POINT pt;
1683 BOOL bButton;
1684
1685 if(!(lphc->wState & CBF_FOCUSED)) SetFocus(hwnd);
1686 if(!(lphc->wState & CBF_FOCUSED)) return 0;
1687
1688 pt.x = LOWORD(lParam);
1689 pt.y = HIWORD(lParam);
1690 bButton = PtInRect(&lphc->buttonRect, pt);
1691
1692 if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1693 (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1694 {
1695 lphc->wState |= CBF_BUTTONDOWN;
1696 if( lphc->wState & CBF_DROPPED )
1697 {
1698 /* got a click to cancel selection */
1699
1700 lphc->wState &= ~CBF_BUTTONDOWN;
1701 CBRollUp( lphc, TRUE, FALSE );
1702 if( !IsWindow( hwnd ) ) return 0;
1703
1704 if( lphc->wState & CBF_CAPTURE )
1705 {
1706 lphc->wState &= ~CBF_CAPTURE;
1707 ReleaseCapture();
1708 }
1709 }
1710 else
1711 {
1712 /* drop down the listbox and start tracking */
1713
1714 lphc->wState |= CBF_CAPTURE;
1715 CBDropDown( lphc );
1716 SetCapture( hwnd );
1717 }
1718 if( bButton ) CBRepaintButton( lphc );
1719 }
1720
1721 return 0;
1722}
1723
1724/***********************************************************************
1725 * COMBO_LButtonUp
1726 *
1727 * Release capture and stop tracking if needed.
1728 */
1729static LRESULT COMBO_LButtonUp(HWND hwnd,WPARAM wParam,LPARAM lParam)
1730{
1731 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1732
1733 if( lphc->wState & CBF_CAPTURE )
1734 {
1735 lphc->wState &= ~CBF_CAPTURE;
1736 if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1737 {
1738 INT index = CBUpdateLBox( lphc );
1739 CBUpdateEdit( lphc, index );
1740 }
1741 ReleaseCapture();
1742//SvL: Don't set the capture here. Otherwise other controls don't respond the first time!
1743// SetCapture(lphc->hWndLBox);
1744 }
1745
1746 if( lphc->wState & CBF_BUTTONDOWN )
1747 {
1748 lphc->wState &= ~CBF_BUTTONDOWN;
1749 CBRepaintButton( lphc );
1750 }
1751
1752 return 0;
1753}
1754
1755/***********************************************************************
1756 * COMBO_MouseMove
1757 *
1758 * Two things to do - track combo button and release capture when
1759 * pointer goes into the listbox.
1760 */
1761static LRESULT COMBO_MouseMove(HWND hwnd,WPARAM wParam,LPARAM lParam)
1762{
1763 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1764 POINT pt;
1765 RECT lbRect;
1766
1767 if(!(lphc->wState & CBF_CAPTURE)) return 0;
1768
1769 pt.x = LOWORD(lParam);
1770 pt.y = HIWORD(lParam);
1771
1772 if( lphc->wState & CBF_BUTTONDOWN )
1773 {
1774 BOOL bButton;
1775
1776 bButton = PtInRect(&lphc->buttonRect, pt);
1777
1778 if( !bButton )
1779 {
1780 lphc->wState &= ~CBF_BUTTONDOWN;
1781 CBRepaintButton( lphc );
1782 }
1783 }
1784
1785 GetClientRect( lphc->hWndLBox, &lbRect );
1786 MapWindowPoints(hwnd, lphc->hWndLBox, &pt, 1 );
1787 if( PtInRect(&lbRect, pt) )
1788 {
1789 lphc->wState &= ~CBF_CAPTURE;
1790 ReleaseCapture();
1791 if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc );
1792
1793 /* hand over pointer tracking */
1794 SendMessageA( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
1795 }
1796
1797 return 0;
1798}
1799
1800static LRESULT COMBO_MouseWheel(HWND hwnd,WPARAM wParam,LPARAM lParam)
1801{
1802 if (wParam & (MK_SHIFT | MK_CONTROL))
1803 return DefWindowProcA(hwnd,WM_MOUSEWHEEL,wParam,lParam);
1804
1805 if ((short) HIWORD(wParam) > 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_UP,0);
1806 if ((short) HIWORD(wParam) < 0) return SendMessageA(hwnd,WM_KEYDOWN,VK_DOWN,0);
1807
1808 return TRUE;
1809}
1810
1811static LRESULT COMBO_Enable(HWND hwnd,WPARAM wParam,LPARAM lParam)
1812{
1813 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1814
1815 if( lphc->wState & CBF_EDIT )
1816 EnableWindow( lphc->hWndEdit, (BOOL)wParam );
1817 EnableWindow( lphc->hWndLBox, (BOOL)wParam );
1818
1819 /* Force the control to repaint when the enabled state changes. */
1820 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1821
1822 return 0;
1823}
1824
1825static LRESULT COMBO_SetRedraw(HWND hwnd,WPARAM wParam,LPARAM lParam)
1826{
1827 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1828
1829 if( wParam )
1830 lphc->wState &= ~CBF_NOREDRAW;
1831 else
1832 lphc->wState |= CBF_NOREDRAW;
1833
1834 if( lphc->wState & CBF_EDIT )
1835 SendMessageA( lphc->hWndEdit, WM_SETREDRAW, wParam, lParam );
1836 SendMessageA( lphc->hWndLBox, WM_SETREDRAW, wParam, lParam );
1837
1838 return 0;
1839}
1840
1841static LRESULT COMBO_SysKeyDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
1842{
1843 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1844
1845 if( KEYDATA_ALT & HIWORD(lParam) )
1846 if( wParam == VK_UP || wParam == VK_DOWN )
1847 COMBO_FlipListbox( lphc, TRUE );
1848
1849 return DefWindowProcA(hwnd,WM_SYSKEYDOWN,wParam,lParam);
1850}
1851
1852static LRESULT COMBO_HandleKey(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
1853{
1854 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1855
1856 if( lphc->wState & CBF_EDIT )
1857 return SendMessageA( lphc->hWndEdit, message, wParam, lParam );
1858 else
1859 return SendMessageA( lphc->hWndLBox, message, wParam, lParam );
1860}
1861
1862/* combobox messages */
1863
1864static LRESULT COMBO_AddString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1865{
1866 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1867
1868 return SendMessageA(lphc->hWndLBox,LB_ADDSTRING,0,lParam);
1869}
1870
1871static LRESULT COMBO_InsertString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1872{
1873 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1874
1875 return SendMessageA(lphc->hWndLBox,LB_INSERTSTRING,wParam,lParam);
1876}
1877
1878static LRESULT COMBO_DeleteString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1879{
1880 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1881
1882 return SendMessageA(lphc->hWndLBox,LB_DELETESTRING,wParam,0);
1883}
1884
1885/***********************************************************************
1886 * COMBO_SelectString
1887 */
1888static LRESULT COMBO_SelectString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1889{
1890 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1891 INT index = SendMessageA(lphc->hWndLBox,LB_SELECTSTRING,wParam,lParam);
1892
1893 if( index >= 0 )
1894 {
1895 if( lphc->wState & CBF_EDIT )
1896 CBUpdateEdit( lphc, index );
1897 else
1898 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
1899 }
1900
1901 return (LRESULT)index;
1902}
1903
1904static LRESULT COMBO_FindString(HWND hwnd,WPARAM wParam,LPARAM lParam)
1905{
1906 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1907
1908 return SendMessageA(lphc->hWndLBox,LB_FINDSTRING,wParam,lParam);
1909}
1910
1911static LRESULT COMBO_FindStringExact(HWND hwnd,WPARAM wParam,LPARAM lParam)
1912{
1913 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1914
1915 return SendMessageA(lphc->hWndLBox,LB_FINDSTRINGEXACT,wParam,lParam);
1916}
1917
1918/***********************************************************************
1919 * COMBO_SetItemHeight
1920 */
1921static LRESULT COMBO_SetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1922{
1923 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1924 LRESULT lRet = CB_ERR;
1925
1926 if( wParam == -1 ) /* set text field height */
1927 {
1928 if( lParam < 32768 )
1929 {
1930 lphc->editHeight = lParam;
1931
1932 /*
1933 * Redo the layout of the control.
1934 */
1935 if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
1936 {
1937 CBCalcPlacement(hwnd,
1938 lphc,
1939 &lphc->textRect,
1940 &lphc->buttonRect,
1941 &lphc->droppedRect);
1942
1943 CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
1944 }
1945 else
1946 {
1947 CBForceDummyResize(lphc);
1948 }
1949
1950 lRet = lParam;
1951 }
1952 }
1953 else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
1954 lRet = SendMessageA( lphc->hWndLBox, LB_SETITEMHEIGHT,
1955 wParam,lParam);
1956 return lRet;
1957}
1958
1959static LRESULT COMBO_GetItemHeight(HWND hwnd,WPARAM wParam,LPARAM lParam)
1960{
1961 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1962
1963 if( (INT)wParam >= 0 ) /* listbox item */
1964 return SendMessageA( lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
1965
1966 return CBGetTextAreaHeight(hwnd, lphc);
1967}
1968
1969static LRESULT COMBO_ResetContent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1970{
1971 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1972
1973 SendMessageA( lphc->hWndLBox, LB_RESETCONTENT, 0, 0 );
1974 InvalidateRect(CB_HWND(lphc), NULL, TRUE);
1975
1976 return TRUE;
1977}
1978
1979static LRESULT COMBO_InitStorage(HWND hwnd,WPARAM wParam,LPARAM lParam)
1980{
1981 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1982
1983 return SendMessageA( lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
1984}
1985
1986static LRESULT COMBO_GetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1987{
1988 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1989
1990 return SendMessageA( lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
1991}
1992
1993static LRESULT COMBO_SetHorizontalExtent(HWND hwnd,WPARAM wParam,LPARAM lParam)
1994{
1995 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
1996
1997 return SendMessageA( lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
1998}
1999
2000static LRESULT COMBO_GetTopIndex(HWND hwnd,WPARAM wParam,LPARAM lParam)
2001{
2002 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2003
2004 return SendMessageA( lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
2005}
2006
2007static LRESULT COMBO_GetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
2008{
2009 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2010
2011 return SendMessageA( lphc->hWndLBox, LB_GETLOCALE, 0, 0);
2012}
2013
2014static LRESULT COMBO_SetLocale(HWND hwnd,WPARAM wParam,LPARAM lParam)
2015{
2016 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2017
2018 return SendMessageA( lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
2019}
2020
2021static LRESULT COMBO_GetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2022{
2023 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2024
2025 if( lphc->droppedWidth )
2026 return lphc->droppedWidth;
2027
2028 return lphc->droppedRect.right - lphc->droppedRect.left;
2029}
2030
2031static LRESULT COMBO_SetDroppedWidth(HWND hwnd,WPARAM wParam,LPARAM lParam)
2032{
2033 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2034
2035 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
2036 (INT)wParam < 32768 ) lphc->droppedWidth = (INT)wParam;
2037
2038 return CB_ERR;
2039}
2040
2041static LRESULT COMBO_GetDroppedControlRect(HWND hwnd,WPARAM wParam,LPARAM lParam)
2042{
2043 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2044
2045 if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
2046
2047 return CB_OKAY;
2048}
2049
2050static LRESULT COMBO_GetDroppedState(HWND hwnd,WPARAM wParam,LPARAM lParam)
2051{
2052 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2053
2054 return (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
2055}
2056
2057static LRESULT COMBO_Dir(HWND hwnd,WPARAM wParam,LPARAM lParam)
2058{
2059 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2060
2061 return COMBO_Directory( lphc, (UINT)wParam,
2062 (LPSTR)lParam,TRUE);
2063}
2064
2065static LRESULT COMBO_ShowDropDown(HWND hwnd,WPARAM wParam,LPARAM lParam)
2066{
2067 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2068
2069 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
2070 {
2071 if( wParam )
2072 {
2073 if( !(lphc->wState & CBF_DROPPED) )
2074 CBDropDown( lphc );
2075 }
2076 else
2077 if( lphc->wState & CBF_DROPPED )
2078 CBRollUp( lphc, FALSE, TRUE );
2079 }
2080
2081 return TRUE;
2082}
2083
2084static LRESULT COMBO_GetCount(HWND hwnd,WPARAM wParam,LPARAM lParam)
2085{
2086 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2087
2088 return SendMessageA( lphc->hWndLBox, LB_GETCOUNT, 0, 0);
2089}
2090
2091static LRESULT COMBO_GetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2092{
2093 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2094
2095 return SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0);
2096}
2097
2098static LRESULT COMBO_SetCurSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2099{
2100 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2101
2102 lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
2103 if( lParam >= 0 )
2104 SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
2105 if( lphc->wState & CBF_SELCHANGE )
2106 {
2107 /* no LBN_SELCHANGE in this case, update manually */
2108 if( lphc->wState & CBF_EDIT )
2109 CBUpdateEdit( lphc, (INT)wParam );
2110 else
2111 InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
2112
2113 lphc->wState &= ~CBF_SELCHANGE;
2114 }
2115
2116 return lParam;
2117}
2118
2119static LRESULT COMBO_GetLBText(HWND hwnd,WPARAM wParam,LPARAM lParam)
2120{
2121 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2122
2123 return SendMessageA( lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
2124}
2125
2126static LRESULT COMBO_GetLBTextLen(HWND hwnd,WPARAM wParam,LPARAM lParam)
2127{
2128 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2129
2130 return SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
2131}
2132
2133static LRESULT COMBO_GetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2134{
2135 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2136
2137 return SendMessageA( lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
2138}
2139
2140static LRESULT COMBO_SetItemData(HWND hwnd,WPARAM wParam,LPARAM lParam)
2141{
2142 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2143
2144 return SendMessageA( lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
2145}
2146
2147static LRESULT COMBO_GetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2148{
2149 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2150
2151 if( lphc->wState & CBF_EDIT )
2152 {
2153 INT a, b;
2154
2155 return SendMessageA( lphc->hWndEdit, EM_GETSEL,
2156 (wParam) ? wParam : (WPARAM)&a,
2157 (lParam) ? lParam : (LPARAM)&b );
2158 }
2159
2160 return CB_ERR;
2161}
2162
2163static LRESULT COMBO_SetEditSel(HWND hwnd,WPARAM wParam,LPARAM lParam)
2164{
2165 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2166
2167 if( lphc->wState & CBF_EDIT )
2168 return SendMessageA( lphc->hWndEdit, EM_SETSEL,
2169 (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
2170
2171 return CB_ERR;
2172}
2173
2174static LRESULT COMBO_SetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2175{
2176 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2177
2178 if( CB_GETTYPE(lphc) == CBS_SIMPLE )
2179 return CB_ERR;
2180 if( wParam )
2181 lphc->wState |= CBF_EUI;
2182 else lphc->wState &= ~CBF_EUI;
2183 return CB_OKAY;
2184}
2185
2186static LRESULT COMBO_GetExtendedUI(HWND hwnd,WPARAM wParam,LPARAM lParam)
2187{
2188 LPHEADCOMBO lphc = (LPHEADCOMBO)GetInfoPtr(hwnd);
2189
2190 return (lphc->wState & CBF_EUI) ? TRUE : FALSE;
2191}
2192
2193/***********************************************************************
2194 * ComboWndProc
2195 *
2196 * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
2197 */
2198LRESULT WINAPI ComboWndProc( HWND hwnd, UINT message,
2199 WPARAM wParam, LPARAM lParam )
2200{
2201// dprintf(("ComboWndProc hwnd: %04x, msg %s, wp %08x lp %08lx\n",
2202// hwnd, GetMsgText(message), wParam, lParam));
2203
2204 switch(message)
2205 {
2206
2207 /* System messages */
2208
2209 case WM_NCCREATE:
2210 return COMBO_NCCreate(hwnd,wParam,lParam);
2211
2212 case WM_NCDESTROY:
2213 return COMBO_NCDestroy(hwnd,wParam,lParam);
2214
2215 case WM_CREATE:
2216 return COMBO_Create(hwnd,wParam,lParam);
2217
2218 case WM_PRINTCLIENT:
2219 return COMBO_PrintClient(hwnd,wParam,lParam);
2220
2221 case WM_PAINT:
2222 return COMBO_Paint(hwnd,wParam,lParam);
2223
2224 case WM_ERASEBKGND:
2225 return COMBO_EraseBackground(hwnd,wParam,lParam);
2226
2227 case WM_GETDLGCODE:
2228 return COMBO_GetDlgCode(hwnd,wParam,lParam);
2229
2230 case WM_WINDOWPOSCHANGING:
2231 return COMBO_WindowPosChanging(hwnd,wParam,lParam);
2232
2233 case WM_SIZE:
2234 return COMBO_Size(hwnd,wParam,lParam);
2235
2236 case WM_SETFONT:
2237 return COMBO_SetFont(hwnd,wParam,lParam);
2238
2239 case WM_GETFONT:
2240 return COMBO_GetFont(hwnd,wParam,lParam);
2241
2242 case WM_SETFOCUS:
2243 return COMBO_SetFocus(hwnd,wParam,lParam);
2244
2245 case WM_KILLFOCUS:
2246 return COMBO_KillFocus(hwnd,wParam,lParam);
2247
2248 case WM_COMMAND:
2249 return COMBO_Command(hwnd,wParam,lParam);
2250
2251 case WM_GETTEXT:
2252 return COMBO_GetText(hwnd,wParam,lParam);
2253
2254 case WM_SETTEXT:
2255 case WM_GETTEXTLENGTH:
2256 case WM_CLEAR:
2257 case WM_CUT:
2258 case WM_PASTE:
2259 case WM_COPY:
2260 return COMBO_HandleText(hwnd,message,wParam,lParam);
2261
2262 case WM_DRAWITEM:
2263 case WM_DELETEITEM:
2264 case WM_COMPAREITEM:
2265 case WM_MEASUREITEM:
2266 return COMBO_HandleItem(hwnd,message,wParam,lParam);
2267
2268 case WM_ENABLE:
2269 return COMBO_Enable(hwnd,wParam,lParam);
2270
2271 case WM_SETREDRAW:
2272 return COMBO_SetRedraw(hwnd,wParam,lParam);
2273
2274 case WM_SYSKEYDOWN:
2275 return COMBO_SysKeyDown(hwnd,wParam,lParam);
2276
2277 case WM_CHAR:
2278 case WM_KEYDOWN:
2279 return COMBO_HandleKey(hwnd,message,wParam,lParam);
2280
2281 case WM_LBUTTONDOWN:
2282 return COMBO_LButtonDown(hwnd,wParam,lParam);
2283
2284 case WM_LBUTTONUP:
2285 return COMBO_LButtonUp(hwnd,wParam,lParam);
2286
2287 case WM_MOUSEMOVE:
2288 return COMBO_MouseMove(hwnd,wParam,lParam);
2289
2290 case WM_MOUSEWHEEL:
2291 return COMBO_MouseWheel(hwnd,wParam,lParam);
2292
2293 /* Combo messages */
2294
2295 case CB_ADDSTRING:
2296 return COMBO_AddString(hwnd,wParam,lParam);
2297
2298 case CB_INSERTSTRING:
2299 return COMBO_InsertString(hwnd,wParam,lParam);
2300
2301 case CB_DELETESTRING:
2302 return COMBO_DeleteString(hwnd,wParam,lParam);
2303
2304 case CB_SELECTSTRING:
2305 return COMBO_SelectString(hwnd,wParam,lParam);
2306
2307 case CB_FINDSTRING:
2308 return COMBO_FindString(hwnd,wParam,lParam);
2309
2310 case CB_FINDSTRINGEXACT:
2311 return COMBO_FindStringExact(hwnd,wParam,lParam);
2312
2313 case CB_SETITEMHEIGHT:
2314 return COMBO_SetItemHeight(hwnd,wParam,lParam);
2315
2316 case CB_GETITEMHEIGHT:
2317 return COMBO_GetItemHeight(hwnd,wParam,lParam);
2318
2319 case CB_RESETCONTENT:
2320 return COMBO_ResetContent(hwnd,wParam,lParam);
2321
2322 case CB_INITSTORAGE:
2323 return COMBO_InitStorage(hwnd,wParam,lParam);
2324
2325 case CB_GETHORIZONTALEXTENT:
2326 return COMBO_GetHorizontalExtent(hwnd,wParam,lParam);
2327
2328 case CB_SETHORIZONTALEXTENT:
2329 return COMBO_SetHorizontalExtent(hwnd,wParam,lParam);
2330
2331 case CB_GETTOPINDEX:
2332 return COMBO_GetTopIndex(hwnd,wParam,lParam);
2333
2334 case CB_GETLOCALE:
2335 return COMBO_GetLocale(hwnd,wParam,lParam);
2336
2337 case CB_SETLOCALE:
2338 return COMBO_SetLocale(hwnd,wParam,lParam);
2339
2340 case CB_GETDROPPEDWIDTH:
2341 return COMBO_GetDroppedWidth(hwnd,wParam,lParam);
2342
2343 case CB_SETDROPPEDWIDTH:
2344 return COMBO_SetDroppedWidth(hwnd,wParam,lParam);
2345
2346 case CB_GETDROPPEDCONTROLRECT:
2347 return COMBO_GetDroppedControlRect(hwnd,wParam,lParam);
2348
2349 case CB_GETDROPPEDSTATE:
2350 return COMBO_GetDroppedState(hwnd,wParam,lParam);
2351
2352 case CB_DIR:
2353 return COMBO_Dir(hwnd,wParam,lParam);
2354
2355 case CB_SHOWDROPDOWN:
2356 return COMBO_ShowDropDown(hwnd,wParam,lParam);
2357
2358 case CB_GETCOUNT:
2359 return COMBO_GetCount(hwnd,wParam,lParam);
2360
2361 case CB_GETCURSEL:
2362 return COMBO_GetCurSel(hwnd,wParam,lParam);
2363
2364 case CB_SETCURSEL:
2365 return COMBO_SetCurSel(hwnd,wParam,lParam);
2366
2367 case CB_GETLBTEXT:
2368 return COMBO_GetLBText(hwnd,wParam,lParam);
2369
2370 case CB_GETLBTEXTLEN:
2371 return COMBO_GetLBTextLen(hwnd,wParam,lParam);
2372
2373 case CB_GETITEMDATA:
2374 return COMBO_GetItemData(hwnd,wParam,lParam);
2375
2376 case CB_SETITEMDATA:
2377 return COMBO_SetItemData(hwnd,wParam,lParam);
2378
2379 case CB_GETEDITSEL:
2380 return COMBO_GetEditSel(hwnd,wParam,lParam);
2381
2382 case CB_SETEDITSEL:
2383 return COMBO_SetEditSel(hwnd,wParam,lParam);
2384
2385 case CB_SETEXTENDEDUI:
2386 return COMBO_SetExtendedUI(hwnd,wParam,lParam);
2387
2388 case CB_GETEXTENDEDUI:
2389 return COMBO_GetExtendedUI(hwnd,wParam,lParam);
2390
2391 //case (WM_USER + 0x1B):
2392 // WARN("[%04x]: undocumented msg!\n", hwnd );
2393 }
2394 return DefWindowProcA(hwnd, message, wParam, lParam);
2395}
2396
2397BOOL COMBOBOX_Register()
2398{
2399 WNDCLASSA wndClass;
2400
2401//SvL: Don't check this now
2402// if (GlobalFindAtomA(COMBOBOXCLASSNAME)) return FALSE;
2403
2404 ZeroMemory(&wndClass,sizeof(WNDCLASSA));
2405 wndClass.style = CS_GLOBALCLASS | CS_PARENTDC;
2406 wndClass.lpfnWndProc = (WNDPROC)ComboWndProc;
2407 wndClass.cbClsExtra = 0;
2408 wndClass.cbWndExtra = sizeof(VOID*);
2409 wndClass.hCursor = LoadCursorA(0,IDC_ARROWA);
2410 wndClass.hbrBackground = (HBRUSH)0;
2411 wndClass.lpszClassName = COMBOBOXCLASSNAME;
2412
2413 return RegisterClassA(&wndClass);
2414}
2415
2416BOOL COMBOBOX_Unregister()
2417{
2418 if (GlobalFindAtomA(COMBOBOXCLASSNAME))
2419 return UnregisterClassA(COMBOBOXCLASSNAME,(HINSTANCE)NULL);
2420 else return FALSE;
2421}
2422
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