controls/combo.c

   1 /*
   2  * Combo controls
   3  *
   4  * Copyright 1993 Martin Ayotte
   5  * Copyright 1995 Bernd Schmidt
   6  * Copyright 1996 Albrecht Kleine  [some fixes]
   7  *
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15
  16 #include "windows.h"
  17 #include "sysmetrics.h"
  18 #include "win.h"
  19 #include "combo.h"
  20 #include "user.h"
  21 #include "graphics.h"
  22 #include "heap.h"
  23 #include "listbox.h"
  24 #include "drive.h"
  25 #include "stddebug.h"
  26 #include "debug.h"
  27 #include "xmalloc.h"
  28
  29  /*
  30   * Note: Combos are probably implemented in a different way by Windows.
  31   * Using a message spy for Windows, you can see some undocumented
  32   * messages being passed between ComboBox and ComboLBox.
  33   * I hope no programs rely on the implementation of combos.
  34   */
  35
  36 #define ID_EDIT  1
  37 #define ID_CLB   2
  38 #define CBLMM_EDGE   4    /* distance inside box which is same as moving mouse
  39                              outside box, to trigger scrolling of CBL */
  40
  41 static BOOL CBCheckSize(HWND hwnd);
  42 static BOOL CBLCheckSize(HWND hwnd);
  43
  44 static HBITMAP16 hComboBit = 0;
  45 static WORD CBitHeight, CBitWidth;
  46
  47 static int COMBO_Init()
  48 {
  49   BITMAP16 bm;
  50
  51   dprintf_combo(stddeb, "COMBO_Init\n");
  52   hComboBit = LoadBitmap16(0, MAKEINTRESOURCE(OBM_COMBO));
  53   GetObject16( hComboBit, sizeof(bm), &bm );
  54   CBitHeight = bm.bmHeight;
  55   CBitWidth = bm.bmWidth;
  56   return 0;
  57 }
  58
  59 LPHEADCOMBO ComboGetStorageHeader(HWND hwnd)
  60 {
  61   return (LPHEADCOMBO)GetWindowLong32A(hwnd,4);
  62 }
  63
  64 LPHEADLIST ComboGetListHeader(HWND hwnd)
  65 {
  66   return (LPHEADLIST)GetWindowLong32A(hwnd,0);
  67 }
  68
  69 int CreateComboStruct(HWND hwnd, LONG style)
  70 {
  71   LPHEADCOMBO lphc;
  72
  73   lphc = (LPHEADCOMBO)xmalloc(sizeof(HEADCOMBO));
  74   SetWindowLong32A(hwnd,4,(LONG)lphc);
  75   lphc->hWndEdit = 0;
  76   lphc->hWndLBox = 0;
  77   lphc->dwState = 0;
  78   lphc->LastSel = -1;
  79   lphc->dwStyle = style;
  80   lphc->DropDownVisible = FALSE;
  81   return TRUE;
  82 }
  83
  84 void ComboUpdateWindow(HWND hwnd, LPHEADLIST lphl, LPHEADCOMBO lphc, BOOL repaint)
  85 {
  86   WND *wndPtr = WIN_FindWndPtr(hwnd);
  87
  88   if (wndPtr->dwStyle & WS_VSCROLL)
  89     SetScrollRange32(lphc->hWndLBox,SB_VERT,0,ListMaxFirstVisible(lphl),TRUE);
  90   if (repaint && lphl->bRedrawFlag) InvalidateRect32( hwnd, NULL, TRUE );
  91 }
  92
  93 /***********************************************************************
  94  *           CBNCCreate
  95  */
  96 static LRESULT CBNCCreate(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
  97 {
  98   CREATESTRUCT16 *createStruct;
  99
 100   if (!hComboBit) COMBO_Init();
 101
 102   createStruct = (CREATESTRUCT16 *)PTR_SEG_TO_LIN(lParam);
 103   createStruct->style |= WS_BORDER;
 104   SetWindowLong32A(hwnd, GWL_STYLE, createStruct->style);
 105
 106   dprintf_combo(stddeb,"ComboBox WM_NCCREATE!\n");
 107   return DefWindowProc16(hwnd, WM_NCCREATE, wParam, lParam);
 108
 109 }
 110
 111 /***********************************************************************
 112  *           CBCreate
 113  */
 114 static LRESULT CBCreate(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 115 {
 116   LPHEADLIST   lphl;
 117   LPHEADCOMBO  lphc;
 118   LONG         style = 0;
 119   LONG         cstyle = GetWindowLong32A(hwnd,GWL_STYLE);
 120   RECT16       rect,lboxrect;
 121   WND*         wndPtr = WIN_FindWndPtr(hwnd);
 122   char className[] = "COMBOLBOX";  /* Hack so that class names are > 0x10000 */
 123   char editName[] = "EDIT";
 124   HWND hwndp=0;
 125
 126   /* translate combo into listbox styles */
 127   cstyle |= WS_BORDER;
 128   if (cstyle & CBS_OWNERDRAWFIXED) style |= LBS_OWNERDRAWFIXED;
 129   if (cstyle & CBS_OWNERDRAWVARIABLE) style |= LBS_OWNERDRAWVARIABLE;
 130   if (cstyle & CBS_SORT) style |= LBS_SORT;
 131   if (cstyle & CBS_HASSTRINGS) style |= LBS_HASSTRINGS;
 132   style |= LBS_NOTIFY;
 133   CreateListBoxStruct(hwnd, ODT_COMBOBOX, style, GetParent16(hwnd));
 134   CreateComboStruct(hwnd,cstyle);
 135
 136   lphl = ComboGetListHeader(hwnd);
 137   lphc = ComboGetStorageHeader(hwnd);
 138
 139   GetClientRect16(hwnd,&rect);
 140   lphc->LBoxTop = lphl->StdItemHeight;
 141
 142   switch(cstyle & 3)
 143   {
 144    case CBS_SIMPLE:            /* edit control, list always visible  */
 145      lboxrect=rect;
 146      dprintf_combo(stddeb,"CBS_SIMPLE\n");
 147      style= WS_BORDER |  WS_CHILD | WS_VISIBLE | WS_VSCROLL;
 148      SetRectEmpty16(&lphc->RectButton);
 149      hwndp=hwnd;
 150      break;
 151
 152    case CBS_DROPDOWNLIST:      /* static control, dropdown listbox   */
 153    case CBS_DROPDOWN:          /* edit control, dropdown listbox     */
 154      GetWindowRect16(hwnd,&lboxrect);
 155      style = WS_POPUP | WS_BORDER | WS_VSCROLL;
 156      /* FIXME: WinSight says these should be CHILD windows with the TOPMOST flag
 157       * set. Wine doesn't support TOPMOST, and simply setting the WS_CHILD
 158       * flag doesn't work. */
 159      lphc->RectButton = rect;
 160      lphc->RectButton.left = lphc->RectButton.right - 6 - CBitWidth;
 161      lphc->RectButton.bottom = lphc->RectButton.top + lphl->StdItemHeight;
 162      SetWindowPos(hwnd, 0, 0, 0, rect.right -rect.left + 2*SYSMETRICS_CXBORDER,
 163                  lphl->StdItemHeight + 2*SYSMETRICS_CYBORDER,
 164                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOSENDCHANGING | SWP_NOACTIVATE);
 165      dprintf_combo(stddeb,(cstyle & 3)==CBS_DROPDOWN ? "CBS_DROPDOWN\n": "CBS_DROPDOWNLIST\n");
 166      break;
 167
 168    default: fprintf(stderr,"COMBOBOX error: bad class style!\n");
 169      return 0;
 170   }
 171
 172   if ((cstyle & 3) != CBS_DROPDOWNLIST)
 173       lphc->hWndEdit = CreateWindow16( editName, NULL,
 174                                   WS_CHILD | WS_CLIPCHILDREN | WS_VISIBLE | ES_LEFT,
 175                                   0, 0, rect.right-6-CBitWidth,
 176                                   lphl->StdItemHeight+2*SYSMETRICS_CYBORDER,
 177                                   hwnd, (HMENU16)ID_EDIT, WIN_GetWindowInstance(hwnd), NULL );
 178
 179   lboxrect.top+=lphc->LBoxTop;
 180   lphc->hWndLBox = CreateWindow16( className, NULL, style |
 181                                 ((cstyle & WS_HSCROLL)? WS_HSCROLL : 0) |
 182                                 ((cstyle & WS_VSCROLL)? WS_VSCROLL : 0),
 183                                 lboxrect.left, lboxrect.top,
 184                                 lboxrect.right - lboxrect.left,
 185                                 lboxrect.bottom - lboxrect.top,
 186                                 hwndp,(HMENU16)ID_CLB, WIN_GetWindowInstance(hwnd),
 187                                 (LPVOID)(HWND32)hwnd );
 188
 189    wndPtr->dwStyle &= ~(WS_VSCROLL | WS_HSCROLL);
 190
 191    dprintf_combo( stddeb, "Combo Creation hwnd=%04x  LBox=%04x  Edit=%04x\n",
 192                   hwnd, lphc->hWndLBox, lphc->hWndEdit);
 193    dprintf_combo( stddeb, "  lbox %d,%d-%d,%d     button %d,%d-%d,%d\n",
 194                   lboxrect.left, lboxrect.top, lboxrect.right, lboxrect.bottom,
 195                   lphc->RectButton.left, lphc->RectButton.top,
 196                   lphc->RectButton.right, lphc->RectButton.bottom );
 197    dprintf_combo( stddeb, "   client %d,%d-%d,%d     window %d,%d-%d,%d\n",
 198                   wndPtr->rectClient.left, wndPtr->rectClient.top,
 199                   wndPtr->rectClient.right, wndPtr->rectClient.bottom,
 200                   wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 201                   wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 202    return 0;
 203 }
 204
 205 /***********************************************************************
 206  *           CBDestroy
 207  */
 208 static LRESULT CBDestroy(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 209 {
 210   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 211
 212   if (lphc->hWndEdit) DestroyWindow( lphc->hWndEdit );
 213   if (lphc->hWndLBox) DestroyWindow( lphc->hWndLBox );
 214   return 0;
 215 }
 216
 217 /***********************************************************************
 218  *           CBPaint
 219  */
 220 static LRESULT CBPaint(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 221 {
 222   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 223   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 224   LPLISTSTRUCT lpls;
 225   PAINTSTRUCT16  ps;
 226   HBRUSH32 hBrush;
 227   HFONT32 hOldFont;
 228   HDC16 hdc;
 229   RECT16 rect;
 230
 231   hdc = BeginPaint16(hwnd, &ps);
 232
 233   GetClientRect16(hwnd, &rect);
 234   CBCheckSize(hwnd);
 235   /* 1 for button border */
 236   rect.right = lphc->RectButton.left - 1;
 237
 238   if (hComboBit != 0 && !IsRectEmpty16(&lphc->RectButton))
 239   {
 240     Rectangle32(hdc,lphc->RectButton.left-1,lphc->RectButton.top-1,
 241                 lphc->RectButton.right+1,lphc->RectButton.bottom+1);
 242     {
 243         RECT32 r;
 244         CONV_RECT16TO32( &lphc->RectButton, &r );
 245         GRAPH_DrawReliefRect(hdc, &r, 2, 2, FALSE);
 246     }
 247     GRAPH_DrawBitmap(hdc, hComboBit,
 248                      lphc->RectButton.left + 2,lphc->RectButton.top + 2,
 249                      0, 0, CBitWidth, CBitHeight );
 250   }
 251   if (!IsWindowVisible(hwnd) || !lphl->bRedrawFlag
 252       || (lphc->dwStyle & 3) != CBS_DROPDOWNLIST)
 253   {
 254     /* we don't want to draw an entry when there is an edit control */
 255     EndPaint16(hwnd, &ps);
 256     return 0;
 257   }
 258
 259   hOldFont = SelectObject32(hdc, lphl->hFont);
 260
 261   hBrush = SendMessage32A( lphl->hParent, WM_CTLCOLORLISTBOX, hdc, hwnd );
 262   if (hBrush == 0) hBrush = GetStockObject32(WHITE_BRUSH);
 263
 264   lpls = ListBoxGetItem(lphl,lphl->ItemFocused);
 265   if (lpls != NULL) {
 266     FillRect16(hdc, &rect, hBrush);
 267     ListBoxDrawItem (hwnd, lphl, hdc, lpls, &rect, ODA_DRAWENTIRE, 0);
 268     if (GetFocus32() == hwnd)
 269     ListBoxDrawItem (hwnd,lphl, hdc, lpls, &rect, ODA_FOCUS, ODS_FOCUS);
 270   }
 271   else FillRect16(hdc, &rect, hBrush);
 272   SelectObject32(hdc,hOldFont);
 273   EndPaint16(hwnd, &ps);
 274   return 0;
 275 }
 276
 277 /***********************************************************************
 278  *           CBGetDlgCode
 279  */
 280 static LRESULT CBGetDlgCode(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 281 {
 282   return DLGC_WANTARROWS | DLGC_WANTCHARS;
 283 }
 284
 285 /***********************************************************************
 286  *           CBLButtonDown
 287  */
 288 static LRESULT CBLButtonDown(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 289 {
 290   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 291   SendMessage16(hwnd,CB_SHOWDROPDOWN16,!lphc->DropDownVisible,0);
 292   return 0;
 293 }
 294
 295 /***********************************************************************
 296  *           CBKeyDown
 297  */
 298 static LRESULT CBKeyDown(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 299 {
 300   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 301   WORD       newFocused = lphl->ItemFocused;
 302
 303   switch(wParam) {
 304   case VK_HOME:
 305     newFocused = 0;
 306     break;
 307   case VK_END:
 308     newFocused = lphl->ItemsCount - 1;
 309     break;
 310   case VK_UP:
 311     if (newFocused > 0) newFocused--;
 312     break;
 313   case VK_DOWN:
 314     newFocused++;
 315     break;
 316   default:
 317     return 0;
 318   }
 319
 320   if (newFocused >= lphl->ItemsCount)
 321     newFocused = lphl->ItemsCount - 1;
 322
 323   ListBoxSetCurSel(lphl, newFocused);
 324   SendMessage16(hwnd, WM_COMMAND,ID_CLB,MAKELONG(0,CBN_SELCHANGE));
 325   ListBoxSendNotification(lphl, CBN_SELCHANGE);
 326
 327   lphl->ItemFocused = newFocused;
 328   ListBoxScrollToFocus(lphl);
 329 /*  SetScrollPos(hwnd, SB_VERT, lphl->FirstVisible, TRUE);*/
 330   InvalidateRect32( hwnd, NULL, TRUE );
 331
 332   return 0;
 333 }
 334
 335 /***********************************************************************
 336  *           CBChar
 337  */
 338 static LRESULT CBChar(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 339 {
 340   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 341   WORD       newFocused;
 342
 343   newFocused = ListBoxFindNextMatch(lphl, wParam);
 344   if (newFocused == (WORD)LB_ERR) return 0;
 345
 346   if (newFocused >= lphl->ItemsCount)
 347     newFocused = lphl->ItemsCount - 1;
 348
 349   ListBoxSetCurSel(lphl, newFocused);
 350   SendMessage16(hwnd, WM_COMMAND,ID_CLB,MAKELONG(0,CBN_SELCHANGE));
 351   ListBoxSendNotification(lphl, CBN_SELCHANGE);
 352   lphl->ItemFocused = newFocused;
 353   ListBoxScrollToFocus(lphl);
 354
 355 /*  SetScrollPos(hwnd, SB_VERT, lphl->FirstVisible, TRUE);*/
 356   InvalidateRect32( hwnd, NULL, TRUE );
 357
 358   return 0;
 359 }
 360
 361 /***********************************************************************
 362  *           CBKillFocus
 363  */
 364 static LRESULT CBKillFocus(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 365 {
 366   return 0;
 367 }
 368
 369 /***********************************************************************
 370  *           CBSetFocus
 371  */
 372 static LRESULT CBSetFocus(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 373 {
 374   return 0;
 375 }
 376
 377 /***********************************************************************
 378  *           CBResetContent
 379  */
 380 static LRESULT CBResetContent(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 381 {
 382   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 383   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 384
 385   ListBoxResetContent(lphl);
 386   ComboUpdateWindow(hwnd, lphl, lphc, TRUE);
 387   return 0;
 388 }
 389
 390 /***********************************************************************
 391  *           CBDir
 392  */
 393 static LRESULT CBDir(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 394 {
 395   WORD wRet;
 396   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 397   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 398
 399   wRet = ListBoxDirectory(lphl, wParam, (LPSTR)PTR_SEG_TO_LIN(lParam));
 400   ComboUpdateWindow(hwnd, lphl, lphc, TRUE);
 401   return wRet;
 402 }
 403
 404 /***********************************************************************
 405  *           CBInsertString
 406  */
 407 static LRESULT CBInsertString(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 408 {
 409   WORD  wRet;
 410   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 411   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 412
 413   if (lphl->HasStrings)
 414     wRet = ListBoxInsertString(lphl, wParam, (LPSTR)PTR_SEG_TO_LIN(lParam));
 415   else
 416     wRet = ListBoxInsertString(lphl, wParam, (LPSTR)lParam);
 417   ComboUpdateWindow(hwnd, lphl, lphc, TRUE);
 418   return wRet;
 419 }
 420
 421 /***********************************************************************
 422  *           CBAddString
 423  */
 424 static LRESULT CBAddString(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 425 {
 426   WORD  wRet;
 427   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 428   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 429
 430   wRet = ListBoxAddString(lphl, (SEGPTR)lParam);
 431
 432   ComboUpdateWindow(hwnd, lphl, lphc, TRUE);
 433   return wRet;
 434 }
 435
 436 /***********************************************************************
 437  *           CBDeleteString
 438  */
 439 static LRESULT CBDeleteString(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 440 {
 441   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 442   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 443   LONG lRet = ListBoxDeleteString(lphl,wParam);
 444
 445   ComboUpdateWindow(hwnd, lphl, lphc, TRUE);
 446   return lRet;
 447 }
 448
 449 /***********************************************************************
 450  *           CBSelectString
 451  */
 452 static LRESULT CBSelectString(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 453 {
 454   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 455   WORD  wRet;
 456
 457   wRet = ListBoxFindString(lphl, wParam, (SEGPTR)lParam);
 458
 459   /* XXX add functionality here */
 460
 461   return 0;
 462 }
 463
 464 /***********************************************************************
 465  *           CBFindString
 466  */
 467 static LRESULT CBFindString(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 468 {
 469   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 470   return ListBoxFindString(lphl, wParam, (SEGPTR)lParam);
 471 }
 472
 473 /***********************************************************************
 474  *           CBFindStringExact
 475  */
 476 static LRESULT CBFindStringExact(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 477 {
 478   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 479   return ListBoxFindStringExact(lphl, wParam, (SEGPTR)lParam);
 480 }
 481
 482 /***********************************************************************
 483  *           CBGetCount
 484  */
 485 static LRESULT CBGetCount(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 486 {
 487   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 488   return lphl->ItemsCount;
 489 }
 490
 491 /***********************************************************************
 492  *           CBSetCurSel
 493  */
 494 static LRESULT CBSetCurSel(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 495 {
 496   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 497   WORD  wRet;
 498
 499   wRet = ListBoxSetCurSel(lphl, wParam);
 500
 501   dprintf_combo(stddeb,"CBSetCurSel: hwnd %04x wp %x lp %lx wRet %d\n",
 502                 hwnd,wParam,lParam,wRet);
 503 /*  SetScrollPos(hwnd, SB_VERT, lphl->FirstVisible, TRUE);*/
 504   InvalidateRect32( hwnd, NULL, TRUE );
 505
 506   return wRet;
 507 }
 508
 509 /***********************************************************************
 510  *           CBGetCurSel
 511  */
 512 static LRESULT CBGetCurSel(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 513 {
 514   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 515   return lphl->ItemFocused;
 516 }
 517
 518 /***********************************************************************
 519  *           CBGetItemHeight
 520  */
 521 static LRESULT CBGetItemHeight(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 522 {
 523   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 524   LPLISTSTRUCT lpls = ListBoxGetItem (lphl, wParam);
 525
 526   if (lpls == NULL) return LB_ERR;
 527   return lpls->mis.itemHeight;
 528 }
 529
 530 /***********************************************************************
 531  *           CBSetItemHeight
 532  */
 533 static LRESULT CBSetItemHeight(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 534 {
 535   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 536   return ListBoxSetItemHeight(lphl, wParam, lParam);
 537 }
 538
 539 /***********************************************************************
 540  *           CBSetRedraw
 541  */
 542 static LRESULT CBSetRedraw(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 543 {
 544   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 545   lphl->bRedrawFlag = wParam;
 546   return 0;
 547 }
 548
 549 /***********************************************************************
 550  *           CBSetFont
 551  */
 552 static LRESULT CBSetFont(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 553 {
 554   LPHEADLIST  lphl = ComboGetListHeader(hwnd);
 555   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 556
 557   if (wParam == 0)
 558     lphl->hFont = GetStockObject32(SYSTEM_FONT);
 559   else
 560     lphl->hFont = (HFONT16)wParam;
 561   if (lphc->hWndEdit)
 562      SendMessage16(lphc->hWndEdit,WM_SETFONT,lphl->hFont,0);
 563   return 0;
 564 }
 565
 566 /***********************************************************************
 567  *           CBGetLBTextLen
 568  */
 569 static LRESULT CBGetLBTextLen(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 570 {
 571   LPHEADLIST   lphl = ComboGetListHeader(hwnd);
 572   LPLISTSTRUCT lpls = ListBoxGetItem(lphl,wParam);
 573
 574   if (lpls == NULL || !lphl->HasStrings) return LB_ERR;
 575   return strlen(lpls->itemText);
 576 }
 577
 578 /***********************************************************************
 579  *           CBGetLBText
 580  */
 581 static LRESULT CBGetLBText(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 582 {
 583   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 584   return ListBoxGetText(lphl, wParam, (LPSTR)PTR_SEG_TO_LIN(lParam));
 585 }
 586
 587 /***********************************************************************
 588  *           CBGetItemData
 589  */
 590 static LRESULT CBGetItemData(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 591 {
 592   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 593   return ListBoxGetItemData(lphl, wParam);
 594 }
 595
 596 /***********************************************************************
 597  *           CBSetItemData
 598  */
 599 static LRESULT CBSetItemData(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 600 {
 601   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 602   return ListBoxSetItemData(lphl, wParam, lParam);
 603 }
 604
 605 /***********************************************************************
 606  *           CBShowDropDown
 607  */
 608 static LRESULT CBShowDropDown(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 609 {
 610   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 611   RECT32 rect;
 612
 613   if ((lphc->dwStyle & 3) == CBS_SIMPLE) return LB_ERR;
 614
 615   wParam = !!wParam;
 616   if (wParam != lphc->DropDownVisible) {
 617     lphc->DropDownVisible = wParam;
 618     GetWindowRect32(hwnd,&rect);
 619     SetWindowPos(lphc->hWndLBox, 0, rect.left, rect.top+lphc->LBoxTop, 0, 0,
 620                  SWP_NOSIZE | SWP_NOACTIVATE |
 621                  (wParam ? SWP_SHOWWINDOW : SWP_HIDEWINDOW));
 622     if (!wParam) SetFocus32(hwnd);
 623   }
 624   return 0;
 625 }
 626
 627
 628 /***********************************************************************
 629  *             CBCheckSize
 630  */
 631 static BOOL CBCheckSize(HWND hwnd)
 632 {
 633   LPHEADCOMBO  lphc = ComboGetStorageHeader(hwnd);
 634   LPHEADLIST   lphl = ComboGetListHeader(hwnd);
 635   LONG         cstyle = GetWindowLong32A(hwnd,GWL_STYLE);
 636   RECT16       cRect, wRect;
 637
 638   if (lphc->hWndLBox == 0) return FALSE;
 639
 640   GetClientRect16(hwnd,&cRect);
 641   GetWindowRect16(hwnd,&wRect);
 642
 643   dprintf_combo(stddeb,
 644          "CBCheckSize: hwnd %04x Rect %d,%d-%d,%d  wRect %d,%d-%d,%d\n",
 645                 hwnd,cRect.left,cRect.top,cRect.right,cRect.bottom,
 646                 wRect.left,wRect.top,wRect.right,wRect.bottom);
 647   if ((cstyle & 3) == CBS_SIMPLE) return TRUE;
 648
 649   if ((cRect.bottom - cRect.top) >
 650       (lphl->StdItemHeight + 2*SYSMETRICS_CYBORDER)) {
 651     SetWindowPos(hwnd, 0, 0, 0,
 652                  cRect.right-cRect.left,
 653                  lphl->StdItemHeight+2*SYSMETRICS_CYBORDER,
 654                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE );
 655     GetClientRect16(hwnd,&cRect);
 656     GetWindowRect16(hwnd,&wRect);
 657
 658     lphc->RectButton.right = cRect.right;
 659     lphc->RectButton.left = cRect.right - 2*SYSMETRICS_CXBORDER - 4
 660                             - CBitWidth;
 661     lphc->RectButton.top = cRect.top;
 662     lphc->RectButton.bottom = cRect.bottom;
 663   }
 664
 665   if (cRect.right < lphc->RectButton.left) {
 666     /* if the button is outside the window move it in */
 667     if ((wRect.right - wRect.left - 2*SYSMETRICS_CXBORDER) == (cRect.right - cRect.left)) {
 668       lphc->RectButton.right = cRect.right;
 669       lphc->RectButton.left = cRect.right - 2*SYSMETRICS_CXBORDER - 4
 670                                - CBitWidth;
 671       lphc->RectButton.top = cRect.top;
 672       lphc->RectButton.bottom = cRect.bottom;
 673     }
 674     /* otherwise we need to make the client include the button */
 675     else
 676       SetWindowPos(hwnd, 0, 0, 0, lphc->RectButton.right,
 677                    lphl->StdItemHeight+2*SYSMETRICS_CYBORDER,
 678                    SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE);
 679
 680       if ((lphc->dwStyle & 3) != CBS_DROPDOWNLIST)
 681         SetWindowPos(lphc->hWndEdit, 0, 0, 0, lphc->RectButton.left,
 682                      lphl->StdItemHeight,
 683                      SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER );
 684   }
 685
 686   CBLCheckSize(hwnd);
 687   return TRUE;
 688 }
 689
 690 /***********************************************************************
 691  *           CBCommand
 692  */
 693 static LRESULT CBCommand(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 694 {
 695   LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 696   LPHEADLIST lphl = ComboGetListHeader(hwnd);
 697   char       buffer[256];
 698   WORD       newFocused;
 699   WORD       id;
 700   if (lphc->hWndEdit)  /* interdependence only used for CBS_SIMPLE and CBS_DROPDOWN styles */
 701   {
 702    switch (wParam)
 703    {
 704     case ID_CLB:                                        /* update EDIT window */
 705                 if (HIWORD(lParam)==CBN_SELCHANGE)
 706                  if (lphl->HasStrings)
 707                  {
 708                   ListBoxGetText(lphl,lphl->ItemFocused, buffer);
 709                   dprintf_combo(stddeb,"CBCommand: update Edit: %s\n",buffer);
 710                   SetWindowText32A( lphc->hWndEdit, buffer );
 711                  }
 712                 break;
 713     case ID_EDIT:                                      /* update LISTBOX window */
 714                  id=GetWindowWord(hwnd,GWW_ID);
 715                  switch (HIWORD(lParam))
 716                  {
 717                   case EN_UPDATE:GetWindowText32A(lphc->hWndEdit,buffer,255);
 718                                  if (*buffer)
 719                                  {
 720                                   char *str = SEGPTR_STRDUP(buffer);
 721                                   newFocused=ListBoxFindString(lphl, -1, SEGPTR_GET(str));
 722                                   SEGPTR_FREE(str);
 723                                   dprintf_combo(stddeb,"CBCommand: new selection #%d is= %s\n",
 724                                                 newFocused,buffer);
 725                                   if (newFocused != (WORD)LB_ERR)
 726                                   {                             /* if found something */
 727                                    ListBoxSetCurSel(lphl, newFocused);
 728                                    ListBoxSendNotification(lphl, CBN_SELCHANGE);
 729                                    InvalidateRect32(hwnd, NULL, TRUE);
 730                                   }
 731                                  }
 732                                  SendMessage16(GetParent16(hwnd),WM_COMMAND,id,
 733                                          MAKELONG(hwnd, CBN_EDITUPDATE));
 734                                  break;
 735                   case EN_CHANGE:SendMessage16(GetParent16(hwnd),WM_COMMAND,id,
 736                                          MAKELONG(hwnd, CBN_EDITCHANGE));
 737                                  break;
 738                   case EN_ERRSPACE:SendMessage16(GetParent16(hwnd),WM_COMMAND,id,
 739                                          MAKELONG(hwnd, CBN_ERRSPACE));
 740                                  break;
 741                 }
 742                 break;
 743    }
 744   }
 745   return 0;
 746 }
 747
 748
 749 /***********************************************************************
 750  *           CBGetEditSel
 751  * Look out! Under Win32, the parameter packing is very different.
 752  */
 753 static LRESULT CBGetEditSel(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 754 {
 755     LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 756
 757     if ((lphc->dwStyle & 3) == CBS_DROPDOWNLIST)
 758       return CB_ERR;    /* err, documented for CBSetEditSel */
 759     return SendMessage16(lphc->hWndEdit, EM_GETSEL, 0, 0);
 760 }
 761
 762
 763 /***********************************************************************
 764  *           CBSetEditSel
 765  * Look out! Under Win32, the parameter packing is very different.
 766  */
 767 static LRESULT CBSetEditSel(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 768 {
 769     LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 770
 771     if ((lphc->dwStyle & 3) == CBS_DROPDOWNLIST)
 772       return CB_ERR;
 773     return SendMessage16(lphc->hWndEdit, EM_SETSEL, 0, lParam);
 774 }
 775
 776 /***********************************************************************
 777  *           CBGetText
 778  */
 779 static LRESULT CBGetText(HWND hwnd, WPARAM16 wParam, LPARAM lParam)
 780 {
 781     LPHEADCOMBO lphc = ComboGetStorageHeader(hwnd);
 782
 783     return SendMessage16(lphc->hWndEdit, WM_GETTEXT, wParam, lParam);
 784 }
 785
 786 /***********************************************************************
 787  *           ComboWndProc
 788  */
 789 LRESULT ComboBoxWndProc(HWND hwnd, UINT message, WPARAM16 wParam, LPARAM lParam)
 790 {
 791     switch(message) {
 792      case WM_NCCREATE: return CBNCCreate(hwnd, wParam, lParam);
 793      case WM_CREATE: return CBCreate(hwnd, wParam, lParam);
 794      case WM_DESTROY: return CBDestroy(hwnd, wParam, lParam);
 795      case WM_GETDLGCODE: return CBGetDlgCode(hwnd, wParam, lParam);
 796      case WM_KEYDOWN: return CBKeyDown(hwnd, wParam, lParam);
 797      case WM_CHAR: return CBChar(hwnd, wParam, lParam);
 798      case WM_SETFONT: return CBSetFont(hwnd, wParam, lParam);
 799      case WM_SETREDRAW: return CBSetRedraw(hwnd, wParam, lParam);
 800      case WM_PAINT: return CBPaint(hwnd, wParam, lParam);
 801      case WM_GETTEXT: return CBGetText( hwnd, wParam, lParam);
 802      case WM_LBUTTONDOWN: return CBLButtonDown(hwnd, wParam, lParam);
 803      case WM_SETFOCUS: return CBSetFocus(hwnd, wParam, lParam);
 804      case WM_KILLFOCUS: return CBKillFocus(hwnd, wParam, lParam);
 805      case WM_SIZE: return CBCheckSize(hwnd);
 806      case WM_COMMAND: return CBCommand(hwnd, wParam, lParam);
 807      case CB_RESETCONTENT16: return CBResetContent(hwnd, wParam, lParam);
 808      case CB_DIR16: return CBDir(hwnd, wParam, lParam);
 809      case CB_ADDSTRING16: return CBAddString(hwnd, wParam, lParam);
 810      case CB_INSERTSTRING16: return CBInsertString(hwnd, wParam, lParam);
 811      case CB_DELETESTRING16: return CBDeleteString(hwnd, wParam, lParam);
 812      case CB_FINDSTRING16: return CBFindString(hwnd, wParam, lParam);
 813      case CB_GETCOUNT16: return CBGetCount(hwnd, wParam, lParam);
 814      case CB_GETCURSEL16: return CBGetCurSel(hwnd, wParam, lParam);
 815      case CB_GETITEMDATA16: return CBGetItemData(hwnd, wParam, lParam);
 816      case CB_GETITEMHEIGHT16: return CBGetItemHeight(hwnd, wParam, lParam);
 817      case CB_GETLBTEXT16: return CBGetLBText(hwnd, wParam, lParam);
 818      case CB_GETLBTEXTLEN16: return CBGetLBTextLen(hwnd, wParam, lParam);
 819      case CB_SELECTSTRING16: return CBSelectString(hwnd, wParam, lParam);
 820      case CB_SETITEMDATA16: return CBSetItemData(hwnd, wParam, lParam);
 821      case CB_SETCURSEL16: return CBSetCurSel(hwnd, wParam, lParam);
 822      case CB_SETITEMHEIGHT16: return CBSetItemHeight(hwnd, wParam, lParam);
 823      case CB_SHOWDROPDOWN16: return CBShowDropDown(hwnd, wParam, lParam);
 824      case CB_GETEDITSEL16: return CBGetEditSel(hwnd, wParam, lParam);
 825      case CB_SETEDITSEL16: return CBSetEditSel(hwnd, wParam, lParam);
 826      case CB_FINDSTRINGEXACT16: return CBFindStringExact(hwnd, wParam, lParam);
 827     }
 828     return DefWindowProc16(hwnd, message, wParam, lParam);
 829 }
 830
 831 /*--------------------------------------------------------------------*/
 832 /* ComboLBox code starts here */
 833
 834 HWND CLBoxGetCombo(HWND hwnd)
 835 {
 836   return (HWND)GetWindowLong32A(hwnd,0);
 837 }
 838
 839 LPHEADLIST CLBoxGetListHeader(HWND hwnd)
 840 {
 841   return ComboGetListHeader(CLBoxGetCombo(hwnd));
 842 }
 843
 844 /***********************************************************************
 845  *           CBLCreate
 846  */
 847 static LRESULT CBLCreate( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 848 {
 849   CREATESTRUCT16 *createStruct = (CREATESTRUCT16 *)PTR_SEG_TO_LIN(lParam);
 850   SetWindowLong32A(hwnd,0,(LONG)createStruct->lpCreateParams);
 851   return 0;
 852 }
 853
 854 /***********************************************************************
 855  *           CBLGetDlgCode
 856  */
 857 static LRESULT CBLGetDlgCode( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 858 {
 859   return DLGC_WANTARROWS | DLGC_WANTCHARS;
 860 }
 861
 862 /***********************************************************************
 863  *           CBLKeyDown
 864  */
 865 static LRESULT CBLKeyDown( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 866 {
 867   LPHEADLIST lphl = CLBoxGetListHeader(hwnd);
 868   WORD newFocused = lphl->ItemFocused;
 869
 870   switch(wParam) {
 871   case VK_HOME:
 872     newFocused = 0;
 873     break;
 874   case VK_END:
 875     newFocused = lphl->ItemsCount - 1;
 876     break;
 877   case VK_UP:
 878     if (newFocused > 0) newFocused--;
 879     break;
 880   case VK_DOWN:
 881     newFocused++;
 882     break;
 883   case VK_PRIOR:
 884     if (newFocused > lphl->ItemsVisible) {
 885       newFocused -= lphl->ItemsVisible;
 886     } else {
 887       newFocused = 0;
 888     }
 889     break;
 890   case VK_NEXT:
 891     newFocused += lphl->ItemsVisible;
 892     break;
 893   default:
 894     return 0;
 895   }
 896
 897   if (newFocused >= lphl->ItemsCount)
 898     newFocused = lphl->ItemsCount - 1;
 899
 900   ListBoxSetCurSel(lphl, newFocused);
 901   ListBoxSendNotification(lphl, CBN_SELCHANGE);
 902   SendMessage16(GetParent16(hwnd), WM_COMMAND,ID_CLB,MAKELONG(0,CBN_SELCHANGE));
 903   lphl->ItemFocused = newFocused;
 904   ListBoxScrollToFocus(lphl);
 905   SetScrollPos32(hwnd, SB_VERT, lphl->FirstVisible, TRUE);
 906   InvalidateRect32( hwnd, NULL, TRUE );
 907   return 0;
 908 }
 909
 910 /***********************************************************************
 911  *           CBLChar
 912  */
 913 static LRESULT CBLChar( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 914 {
 915   return 0;
 916 }
 917
 918 /***********************************************************************
 919  *           CBLPaint
 920  */
 921 static LRESULT CBLPaint( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 922 {
 923   LPHEADLIST   lphl = CLBoxGetListHeader(hwnd);
 924   LPLISTSTRUCT lpls;
 925   PAINTSTRUCT16  ps;
 926   HBRUSH32 hBrush;
 927   HFONT32 hOldFont;
 928   WND * wndPtr = WIN_FindWndPtr(hwnd);
 929   HWND  combohwnd = CLBoxGetCombo(hwnd);
 930   HDC16 hdc;
 931   RECT16 rect;
 932   int   i, top, height;
 933
 934   top = 0;
 935   hdc = BeginPaint16( hwnd, &ps );
 936
 937   if (!IsWindowVisible(hwnd) || !lphl->bRedrawFlag) {
 938     EndPaint16(hwnd, &ps);
 939     return 0;
 940   }
 941
 942   hOldFont = SelectObject32(hdc, lphl->hFont);
 943   /* listboxes should be white */
 944   hBrush = GetStockObject32(WHITE_BRUSH);
 945
 946   GetClientRect16(hwnd, &rect);
 947   FillRect16(hdc, &rect, hBrush);
 948   CBLCheckSize(hwnd);
 949
 950   lpls = lphl->lpFirst;
 951
 952   lphl->ItemsVisible = 0;
 953   for(i = 0; i < lphl->ItemsCount; i++) {
 954     if (lpls == NULL) break;
 955
 956     if (i >= lphl->FirstVisible) {
 957       height = lpls->mis.itemHeight;
 958       /* must have enough room to draw entire item */
 959       if (top > (rect.bottom-height+1)) break;
 960
 961       lpls->itemRect.top    = top;
 962       lpls->itemRect.bottom = top + height;
 963       lpls->itemRect.left   = rect.left;
 964       lpls->itemRect.right  = rect.right;
 965
 966       dprintf_listbox(stddeb,"drawing item: %d %d %d %d %d\n",
 967                       rect.left,top,rect.right,top+height,lpls->itemState);
 968       if (lphl->OwnerDrawn) {
 969         ListBoxDrawItem (combohwnd, lphl, hdc, lpls, &lpls->itemRect, ODA_DRAWENTIRE, 0);
 970         if (lpls->itemState)
 971           ListBoxDrawItem (combohwnd, lphl, hdc, lpls, &lpls->itemRect, ODA_SELECT, ODS_SELECTED);
 972       } else {
 973         ListBoxDrawItem (combohwnd, lphl, hdc, lpls, &lpls->itemRect, ODA_DRAWENTIRE,
 974                          lpls->itemState);
 975       }
 976       if ((lphl->ItemFocused == i) && GetFocus32() == hwnd)
 977         ListBoxDrawItem (combohwnd, lphl, hdc, lpls, &lpls->itemRect, ODA_FOCUS, ODS_FOCUS);
 978
 979       top += height;
 980       lphl->ItemsVisible++;
 981     }
 982
 983     lpls = lpls->lpNext;
 984   }
 985
 986   if (wndPtr->dwStyle & WS_VSCROLL)
 987       SetScrollRange32(hwnd, SB_VERT, 0, ListMaxFirstVisible(lphl), TRUE);
 988
 989   SelectObject32(hdc,hOldFont);
 990   EndPaint16( hwnd, &ps );
 991   return 0;
 992
 993 }
 994
 995 /***********************************************************************
 996  *           CBLKillFocus
 997  */
 998 static LRESULT CBLKillFocus( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
 999 {
1000 /*  SendMessage16(CLBoxGetCombo(hwnd),CB_SHOWDROPDOWN16,0,0);*/
1001   return 0;
1002 }
1003
1004 /***********************************************************************
1005  *           CBLActivate
1006  */
1007 static LRESULT CBLActivate( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
1008 {
1009   if (wParam == WA_INACTIVE)
1010     SendMessage16(CLBoxGetCombo(hwnd),CB_SHOWDROPDOWN16,0,0);
1011   return 0;
1012 }
1013
1014 /***********************************************************************
1015  *           CBLLButtonDown
1016  */
1017 static LRESULT CBLLButtonDown( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
1018 {
1019   LPHEADLIST lphl = CLBoxGetListHeader(hwnd);
1020   int        y;
1021   RECT16     rectsel;
1022
1023 /*  SetFocus32(hwnd); */
1024   SetCapture32(hwnd);
1025
1026   lphl->PrevFocused = lphl->ItemFocused;
1027
1028   y = ListBoxFindMouse(lphl, LOWORD(lParam), HIWORD(lParam));
1029   if (y == -1)
1030     return 0;
1031
1032   ListBoxSetCurSel(lphl, y);
1033   ListBoxGetItemRect(lphl, y, &rectsel);
1034
1035   InvalidateRect32( hwnd, NULL, TRUE );
1036   return 0;
1037 }
1038
1039 /***********************************************************************
1040  *           CBLLButtonUp
1041  */
1042 static LRESULT CBLLButtonUp( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
1043 {
1044   LPHEADLIST lphl = CLBoxGetListHeader(hwnd);
1045
1046   if (GetCapture32() == hwnd) ReleaseCapture();
1047
1048   if(!lphl)
1049      {
1050       fprintf(stdnimp,"CBLLButtonUp: CLBoxGetListHeader returned NULL!\n");
1051      }
1052   else if (lphl->PrevFocused != lphl->ItemFocused)
1053           {
1054                 SendMessage16(CLBoxGetCombo(hwnd),CB_SETCURSEL16,lphl->ItemFocused,0);
1055                 SendMessage16(GetParent16(hwnd), WM_COMMAND,ID_CLB,MAKELONG(0,CBN_SELCHANGE));
1056                 ListBoxSendNotification(lphl, CBN_SELCHANGE);
1057           }
1058
1059   SendMessage16(CLBoxGetCombo(hwnd),CB_SHOWDROPDOWN16,0,0);
1060
1061   return 0;
1062 }
1063
1064 /***********************************************************************
1065  *           CBLMouseMove
1066  */
1067 static LRESULT CBLMouseMove( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
1068 {
1069   LPHEADLIST lphl = CLBoxGetListHeader(hwnd);
1070   short y;
1071   WORD wRet;
1072   RECT16 rect, rectsel;
1073
1074   y = SHIWORD(lParam);
1075   wRet = ListBoxFindMouse(lphl, LOWORD(lParam), HIWORD(lParam));
1076   ListBoxGetItemRect(lphl, wRet, &rectsel);
1077   GetClientRect16(hwnd, &rect);
1078
1079   dprintf_combo(stddeb,"CBLMouseMove: hwnd %04x wp %x lp %lx  y %d  if %d wret %d %d,%d-%d,%d\n",
1080 hwnd,wParam,lParam,y,lphl->ItemFocused,wRet,rectsel.left,rectsel.top,rectsel.right,rectsel.bottom);
1081
1082   if ((wParam & MK_LBUTTON) != 0) {
1083     if (y < CBLMM_EDGE) {
1084       if (lphl->FirstVisible > 0) {
1085         lphl->FirstVisible--;
1086         SetScrollPos32(hwnd, SB_VERT, lphl->FirstVisible, TRUE);
1087         ListBoxSetCurSel(lphl, wRet);
1088         InvalidateRect32( hwnd, NULL, TRUE );
1089         return 0;
1090       }
1091     }
1092     else if (y >= (rect.bottom-CBLMM_EDGE)) {
1093       if (lphl->FirstVisible < ListMaxFirstVisible(lphl)) {
1094         lphl->FirstVisible++;
1095         SetScrollPos32(hwnd, SB_VERT, lphl->FirstVisible, TRUE);
1096         ListBoxSetCurSel(lphl, wRet);
1097         InvalidateRect32( hwnd, NULL, TRUE );
1098         return 0;
1099       }
1100     }
1101     else {
1102       if ((short) wRet == lphl->ItemFocused) return 0;
1103       ListBoxSetCurSel(lphl, wRet);
1104       InvalidateRect32( hwnd, NULL, TRUE );
1105     }
1106   }
1107
1108   return 0;
1109 }
1110
1111 /***********************************************************************
1112  *           CBLVScroll
1113  */
1114 static LRESULT CBLVScroll( HWND hwnd, WPARAM16 wParam, LPARAM lParam )
1115 {
1116   LPHEADLIST lphl = CLBoxGetListHeader(hwnd);
1117   int  y;
1118
1119   y = lphl->FirstVisible;
1120
1121   switch(wParam) {
1122   case SB_LINEUP:
1123     if (lphl->FirstVisible > 0)
1124       lphl->FirstVisible--;
1125     break;
1126
1127   case SB_LINEDOWN:
1128     lphl->FirstVisible++;
1129     break;
1130
1131   case SB_PAGEUP:
1132     if (lphl->FirstVisible > lphl->ItemsVisible) {
1133       lphl->FirstVisible -= lphl->ItemsVisible;
1134     } else {
1135       lphl->FirstVisible = 0;
1136     }
1137     break;
1138
1139   case SB_PAGEDOWN:
1140     lphl->FirstVisible += lphl->ItemsVisible;
1141     break;
1142
1143   case SB_THUMBTRACK:
1144     lphl->FirstVisible = LOWORD(lParam);
1145     break;
1146   }
1147
1148   if (lphl->FirstVisible > ListMaxFirstVisible(lphl))
1149     lphl->FirstVisible = ListMaxFirstVisible(lphl);
1150
1151   if (y != lphl->FirstVisible) {
1152     SetScrollPos32(hwnd, SB_VERT, lphl->FirstVisible, TRUE);
1153     InvalidateRect32( hwnd, NULL, TRUE );
1154   }
1155
1156   return 0;
1157 }
1158
1159
1160 /***********************************************************************
1161  *             CBLCheckSize
1162  */
1163 static BOOL CBLCheckSize(HWND hwnd)
1164 {
1165   LPHEADCOMBO  lphc = ComboGetStorageHeader(hwnd);
1166   LPHEADLIST   lphl = ComboGetListHeader(hwnd);
1167   LPLISTSTRUCT lpls;
1168   HWND         hWndLBox;
1169   RECT16 cRect,wRect,lRect,lwRect;
1170   int totheight,dw;
1171   char className[80];
1172
1173   GetClassName32A(hwnd,className,80);
1174   fflush(stddeb);
1175   if (strncmp(className,"COMBOBOX",8)) return FALSE;
1176   if ((hWndLBox = lphc->hWndLBox) == 0) return FALSE;
1177   dprintf_combo(stddeb,"CBLCheckSize headers hw %04x  lb %04x  name %s\n",
1178                 hwnd,hWndLBox,className);
1179
1180   GetClientRect16(hwnd,&cRect);
1181   GetWindowRect16(hwnd,&wRect);
1182   GetClientRect16(hWndLBox,&lRect);
1183   GetWindowRect16(hWndLBox,&lwRect);
1184
1185   dprintf_combo(stddeb,"CBLCheckSize: init cRect %d,%d-%d,%d  wRect %d,%d-%d,%d\n",
1186                 cRect.left,cRect.top,cRect.right,cRect.bottom,
1187                 wRect.left,wRect.top,wRect.right,wRect.bottom);
1188   dprintf_combo(stddeb,"                   lRect %d,%d-%d,%d  lwRect %d,%d-%d,%d\n",
1189               lRect.left,lRect.top,lRect.right,lRect.bottom,
1190               lwRect.left,lwRect.top,lwRect.right,lwRect.bottom);
1191   fflush(stddeb);
1192
1193   totheight = 0;
1194   for (lpls=lphl->lpFirst; lpls != NULL; lpls=lpls->lpNext)
1195     totheight += lpls->mis.itemHeight;
1196
1197   dw = cRect.right-cRect.left+2*SYSMETRICS_CXBORDER+SYSMETRICS_CXVSCROLL;
1198   dw -= lwRect.right-lwRect.left;
1199   dw -= SYSMETRICS_CXVSCROLL;
1200
1201   /* TODO: This isn't really what windows does */
1202   if ((lRect.bottom-lRect.top < 3*lphl->StdItemHeight) || dw) {
1203     dprintf_combo(stddeb,"    Changing; totHeight %d  StdItemHght %d  dw %d\n",
1204                   totheight,lphl->StdItemHeight,dw);
1205     SetWindowPos(hWndLBox, 0, lRect.left, lRect.top,
1206                  lwRect.right-lwRect.left+dw, totheight+2*SYSMETRICS_CYBORDER,
1207                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE );
1208   }
1209   return TRUE;
1210 }
1211
1212
1213 /***********************************************************************
1214  *           ComboLBoxWndProc
1215  */
1216 LRESULT ComboLBoxWndProc(HWND hwnd, UINT message, WPARAM16 wParam, LPARAM lParam)
1217 {
1218     switch(message) {
1219      case WM_CREATE: return CBLCreate(hwnd, wParam, lParam);
1220      case WM_GETDLGCODE: return CBLGetDlgCode(hwnd, wParam, lParam);
1221      case WM_KEYDOWN: return CBLKeyDown(hwnd, wParam, lParam);
1222      case WM_CHAR: return CBLChar(hwnd, wParam, lParam);
1223      case WM_PAINT: return CBLPaint(hwnd, wParam, lParam);
1224      case WM_KILLFOCUS: return CBLKillFocus(hwnd, wParam, lParam);
1225      case WM_ACTIVATE: return CBLActivate(hwnd, wParam, lParam);
1226      case WM_LBUTTONDOWN: return CBLLButtonDown(hwnd, wParam, lParam);
1227      case WM_LBUTTONUP: return CBLLButtonUp(hwnd, wParam, lParam);
1228      case WM_MOUSEMOVE: return CBLMouseMove(hwnd, wParam, lParam);
1229      case WM_VSCROLL: return CBLVScroll(hwnd, wParam, lParam);
1230      case WM_SIZE: return CBLCheckSize(hwnd);
1231      case WM_MOUSEACTIVATE:  /* We don't want to be activated */
1232         return MA_NOACTIVATE;
1233     }
1234     return DefWindowProc16(hwnd, message, wParam, lParam);
1235 }