git.oblomov.eu Git - wine/blob - controls/combo.c

   1 /*
   2  * Combo controls
   3  *
   4  * Copyright 1997 Alex Korobka
   5  *
   6  * FIXME: roll up in Netscape 3.01.
   7  */
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11
  12 #include "windows.h"
  13 #include "sysmetrics.h"
  14 #include "syscolor.h"
  15 #include "win.h"
  16 #include "spy.h"
  17 #include "user.h"
  18 #include "graphics.h"
  19 #include "heap.h"
  20 #include "combo.h"
  21 #include "drive.h"
  22 #include "stddebug.h"
  23 #include "debug.h"
  24
  25   /* bits in the dwKeyData */
  26 #define KEYDATA_ALT             0x2000
  27 #define KEYDATA_PREVSTATE       0x4000
  28
  29 /*
  30  * Additional combo box definitions
  31  */
  32
  33 #define CB_GETPTR( wnd )      (*(LPHEADCOMBO*)((wnd)->wExtra))
  34 #define CB_NOTIFY( lphc, code ) \
  35         (SendMessage32A( (lphc)->owner, WM_COMMAND, \
  36                          MAKEWPARAM((lphc)->self->wIDmenu, (code)), (lphc)->self->hwndSelf))
  37 #define CB_GETEDITTEXTLENGTH( lphc ) \
  38         (SendMessage32A( (lphc)->hWndEdit, WM_GETTEXTLENGTH, 0, 0 ))
  39
  40 static HBITMAP16        hComboBmp = 0;
  41 static UINT16           CBitHeight, CBitWidth;
  42 static UINT16           CBitOffset = 8;
  43
  44 /***********************************************************************
  45  *           COMBO_Init
  46  *
  47  * Load combo button bitmap.
  48  */
  49 static BOOL32 COMBO_Init()
  50 {
  51   HDC16         hDC;
  52
  53   if( hComboBmp ) return TRUE;
  54   if( (hDC = CreateCompatibleDC16(0)) )
  55   {
  56     BOOL32      bRet = FALSE;
  57     if( (hComboBmp = LoadBitmap16(0, MAKEINTRESOURCE(OBM_COMBO))) )
  58     {
  59       BITMAP16      bm;
  60       HBITMAP16     hPrevB;
  61       RECT16        r;
  62
  63       GetObject16( hComboBmp, sizeof(bm), &bm );
  64       CBitHeight = bm.bmHeight;
  65       CBitWidth  = bm.bmWidth;
  66
  67       dprintf_combo(stddeb, "combo bitmap [%i,%i]\n", CBitWidth, CBitHeight );
  68
  69       hPrevB = SelectObject16( hDC, hComboBmp);
  70       SetRect16( &r, 0, 0, CBitWidth, CBitHeight );
  71       InvertRect16( hDC, &r );
  72       SelectObject16( hDC, hPrevB );
  73       bRet = TRUE;
  74     }
  75     DeleteDC16( hDC );
  76     return bRet;
  77   }
  78   return FALSE;
  79 }
  80
  81 /***********************************************************************
  82  *           COMBO_NCCreate
  83  */
  84 static LRESULT COMBO_NCCreate(WND* wnd, LPARAM lParam)
  85 {
  86    LPHEADCOMBO          lphc;
  87
  88    if ( wnd && COMBO_Init() &&
  89       (lphc = HeapAlloc(GetProcessHeap(), 0, sizeof(HEADCOMBO))) )
  90    {
  91         LPCREATESTRUCT32A     lpcs = (CREATESTRUCT32A*)lParam;
  92
  93         memset( lphc, 0, sizeof(HEADCOMBO) );
  94        *(LPHEADCOMBO*)wnd->wExtra = lphc;
  95
  96        /* some braindead apps do try to use scrollbar/border flags */
  97
  98         lphc->dwStyle = (lpcs->style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL));
  99         wnd->dwStyle &= ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
 100
 101         if( !(lpcs->style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
 102               lphc->dwStyle |= CBS_HASSTRINGS;
 103         if( !(wnd->dwExStyle & WS_EX_NOPARENTNOTIFY) )
 104               lphc->wState |= CBF_NOTIFY;
 105
 106         dprintf_combo(stddeb, "COMBO_NCCreate: [0x%08x], style = %08x\n",
 107                                                 (UINT32)lphc, lphc->dwStyle );
 108
 109         return (LRESULT)(UINT32)wnd->hwndSelf;
 110     }
 111     return (LRESULT)FALSE;
 112 }
 113
 114 /***********************************************************************
 115  *           COMBO_NCDestroy
 116  */
 117 static LRESULT COMBO_NCDestroy( LPHEADCOMBO lphc )
 118 {
 119
 120    if( lphc )
 121    {
 122        WND*             wnd = lphc->self;
 123
 124        dprintf_combo(stddeb,"Combo [%04x]: freeing storage\n", CB_HWND(lphc));
 125
 126        if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
 127            DestroyWindow32( lphc->hWndLBox );
 128
 129        HeapFree( GetProcessHeap(), 0, lphc );
 130        wnd->wExtra[0] = 0;
 131    }
 132    return 0;
 133 }
 134
 135 /***********************************************************************
 136  *           CBCalcPlacement
 137  *
 138  * Set up component coordinates given valid lphc->RectCombo.
 139  */
 140 static void CBCalcPlacement( LPHEADCOMBO lphc,
 141                              LPRECT16 lprEdit, LPRECT16 lprButton, LPRECT16 lprLB )
 142 {
 143    RECT16       rect = lphc->RectCombo;
 144    SIZE16       size;
 145
 146    /* get combo height and width */
 147
 148    if( lphc->editHeight )
 149        size.cy = (INT16)lphc->editHeight;
 150    else
 151    {
 152        HDC16    hDC = GetDC16( lphc->self->hwndSelf );
 153        HFONT16  hPrevFont = (HFONT16)0;
 154
 155        if( lphc->hFont ) hPrevFont = SelectObject16( hDC, lphc->hFont );
 156
 157        GetTextExtentPoint16( hDC, "0", 1, &size);
 158
 159        size.cy += size.cy / 4 + 4 * SYSMETRICS_CYBORDER;
 160
 161        if( hPrevFont ) SelectObject16( hDC, hPrevFont );
 162        ReleaseDC16( lphc->self->hwndSelf, hDC );
 163    }
 164    size.cx = rect.right - rect.left;
 165
 166    if( CB_OWNERDRAWN(lphc) )
 167    {
 168        UINT16   u = lphc->RectEdit.bottom - lphc->RectEdit.top;
 169
 170        if( lphc->wState & CBF_MEASUREITEM ) /* first initialization */
 171        {
 172          MEASUREITEMSTRUCT32        mi32;
 173
 174          lphc->wState &= ~CBF_MEASUREITEM;
 175          mi32.CtlType = ODT_COMBOBOX;
 176          mi32.CtlID   = lphc->self->wIDmenu;
 177          mi32.itemID  = -1;
 178          mi32.itemWidth  = size.cx;
 179          mi32.itemHeight = size.cy - 6; /* ownerdrawn cb is taller */
 180          mi32.itemData   = 0;
 181          SendMessage32A(lphc->owner, WM_MEASUREITEM,
 182                                 (WPARAM32)mi32.CtlID, (LPARAM)&mi32);
 183          u = 6 + (UINT16)mi32.itemHeight;
 184        }
 185        size.cy = u;
 186    }
 187
 188    /* calculate text and button placement */
 189
 190    lprEdit->left = lprEdit->top = lprButton->top = 0;
 191    if( CB_GETTYPE(lphc) == CBS_SIMPLE )         /* no button */
 192        lprButton->left = lprButton->right = lprButton->bottom = 0;
 193    else
 194    {
 195        INT32    i = size.cx - CBitWidth - 10;   /* seems ok */
 196
 197        lprButton->right = size.cx;
 198        lprButton->left = (INT16)i;
 199        lprButton->bottom = lprButton->top + size.cy;
 200
 201        if( i < 0 ) size.cx = 0;
 202        else size.cx = (INT16)i;
 203    }
 204
 205    if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
 206    {
 207        size.cx -= CBitOffset;
 208        if( size.cx < 0 ) size.cx = 0;
 209    }
 210
 211    lprEdit->right = size.cx; lprEdit->bottom = size.cy;
 212
 213    /* listbox placement */
 214
 215    lprLB->left = ( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST ) ? 0 : CBitOffset;
 216    lprLB->top = lprEdit->bottom - SYSMETRICS_CYBORDER;
 217    lprLB->right = rect.right - rect.left;
 218    lprLB->bottom = rect.bottom - rect.top;
 219
 220    if( lphc->droppedWidth > (lprLB->right - lprLB->left) )
 221        lprLB->right = lprLB->left + (INT16)lphc->droppedWidth;
 222
 223 dprintf_combo(stddeb,"Combo [%04x]: (%i,%i-%i,%i) placement\n\ttext\t= (%i,%i-%i,%i)\
 224 \n\tbutton\t= (%i,%i-%i,%i)\n\tlbox\t= (%i,%i-%i,%i)\n", CB_HWND(lphc),
 225 lphc->RectCombo.left, lphc->RectCombo.top, lphc->RectCombo.right, lphc->RectCombo.bottom,
 226 lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom,
 227 lprButton->left, lprButton->top, lprButton->right, lprButton->bottom,
 228 lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
 229
 230 }
 231
 232 /***********************************************************************
 233  *           CBGetDroppedControlRect32
 234  */
 235 static void CBGetDroppedControlRect32( LPHEADCOMBO lphc, LPRECT32 lpRect)
 236 {
 237    lpRect->left = lphc->RectCombo.left +
 238                       (lphc->wState & CBF_EDIT) ? CBitOffset : 0;
 239    lpRect->top = lphc->RectCombo.top + lphc->RectEdit.bottom -
 240                                              SYSMETRICS_CYBORDER;
 241    lpRect->right = lphc->RectCombo.right;
 242    lpRect->bottom = lphc->RectCombo.bottom - SYSMETRICS_CYBORDER;
 243 }
 244
 245 /***********************************************************************
 246  *           COMBO_Create
 247  */
 248 static LRESULT COMBO_Create( LPHEADCOMBO lphc, WND* wnd, LPARAM lParam)
 249 {
 250   static char clbName[] = "ComboLBox";
 251   static char editName[] = "Edit";
 252
 253   LPCREATESTRUCT32A  lpcs = (CREATESTRUCT32A*)lParam;
 254
 255   if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
 256   else if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
 257
 258   lphc->self  = wnd;
 259   lphc->owner = lpcs->hwndParent;
 260
 261   /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
 262
 263   if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
 264   {
 265       UINT32    lbeStyle;
 266       RECT16    editRect, btnRect, lbRect;
 267
 268       GetWindowRect16( wnd->hwndSelf, &lphc->RectCombo );
 269
 270       lphc->wState |= CBF_MEASUREITEM;
 271       CBCalcPlacement( lphc, &editRect, &btnRect, &lbRect );
 272       lphc->RectButton = btnRect;
 273       lphc->droppedWidth = lphc->editHeight = 0;
 274
 275       /* create listbox popup */
 276
 277       lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS) |
 278                  (lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
 279
 280       if( lphc->dwStyle & CBS_SORT )
 281         lbeStyle |= LBS_SORT;
 282       if( lphc->dwStyle & CBS_HASSTRINGS )
 283         lbeStyle |= LBS_HASSTRINGS;
 284       if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
 285         lbeStyle |= LBS_NOINTEGRALHEIGHT;
 286       if( lphc->dwStyle & CBS_DISABLENOSCROLL )
 287         lbeStyle |= LBS_DISABLENOSCROLL;
 288
 289       if( CB_GETTYPE(lphc) == CBS_SIMPLE )      /* child listbox */
 290         lbeStyle |= WS_CHILD | WS_VISIBLE;
 291       else                                      /* popup listbox */
 292       {
 293         lbeStyle |= WS_POPUP;
 294         OffsetRect16( &lbRect, lphc->RectCombo.left, lphc->RectCombo.top );
 295       }
 296
 297      /* Dropdown ComboLBox is not a child window and we cannot pass
 298       * ID_CB_LISTBOX directly because it will be treated as a menu handle.
 299       */
 300
 301       lphc->hWndLBox = CreateWindowEx32A( 0, clbName, NULL, lbeStyle,
 302                         lbRect.left + SYSMETRICS_CXBORDER,
 303                         lbRect.top + SYSMETRICS_CYBORDER,
 304                         lbRect.right - lbRect.left - 2 * SYSMETRICS_CXBORDER,
 305                         lbRect.bottom - lbRect.top - 2 * SYSMETRICS_CYBORDER,
 306                         lphc->self->hwndSelf,
 307                        (lphc->dwStyle & CBS_DROPDOWN)? (HMENU32)0 : (HMENU32)ID_CB_LISTBOX,
 308                         lphc->self->hInstance, (LPVOID)lphc );
 309       if( lphc->hWndLBox )
 310       {
 311           BOOL32        bEdit = TRUE;
 312           lbeStyle = WS_CHILD | WS_VISIBLE | WS_BORDER | ES_NOHIDESEL | ES_LEFT;
 313           if( lphc->wState & CBF_EDIT )
 314           {
 315               if( lphc->dwStyle & CBS_OEMCONVERT )
 316                   lbeStyle |= ES_OEMCONVERT;
 317               if( lphc->dwStyle & CBS_AUTOHSCROLL )
 318                   lbeStyle |= ES_AUTOHSCROLL;
 319               if( lphc->dwStyle & CBS_LOWERCASE )
 320                   lbeStyle |= ES_LOWERCASE;
 321               else if( lphc->dwStyle & CBS_UPPERCASE )
 322                   lbeStyle |= ES_UPPERCASE;
 323               lphc->hWndEdit = CreateWindowEx32A( 0, editName, NULL, lbeStyle,
 324                         editRect.left, editRect.top, editRect.right - editRect.left,
 325                         editRect.bottom - editRect.top, lphc->self->hwndSelf,
 326                         (HMENU32)ID_CB_EDIT, lphc->self->hInstance, NULL );
 327               if( !lphc->hWndEdit ) bEdit = FALSE;
 328           }
 329
 330           if( bEdit )
 331           {
 332               lphc->RectEdit = editRect;
 333               if( CB_GETTYPE(lphc) != CBS_SIMPLE )
 334               {
 335                 lphc->wState |= CBF_NORESIZE;
 336                 SetWindowPos32( wnd->hwndSelf, 0, 0, 0,
 337                                 lphc->RectCombo.right - lphc->RectCombo.left,
 338                                 lphc->RectEdit.bottom - lphc->RectEdit.top,
 339                                 SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
 340                 lphc->wState &= ~CBF_NORESIZE;
 341               }
 342               dprintf_combo(stddeb,"COMBO_Create: init done\n");
 343               return wnd->hwndSelf;
 344           }
 345           dprintf_combo(stderr, "COMBO_Create: edit control failure.\n");
 346       } else dprintf_combo(stderr, "COMBO_Create: listbox failure.\n");
 347   } else dprintf_combo(stderr, "COMBO_Create: no owner for visible combo.\n");
 348
 349   /* CreateWindow() will send WM_NCDESTROY to cleanup */
 350
 351   return -1;
 352 }
 353
 354 /***********************************************************************
 355  *           CBPaintButton
 356  *
 357  * Paint combo button (normal, pressed, and disabled states).
 358  */
 359 static void CBPaintButton(LPHEADCOMBO lphc, HDC16 hdc)
 360 {
 361     RECT32      r;
 362     HBRUSH32    hPrevBrush;
 363     UINT32      x, y;
 364     BOOL32      bBool;
 365
 366     if( lphc->wState & CBF_NOREDRAW )
 367         return;
 368
 369     hPrevBrush = (HBRUSH32)SelectObject32(hdc, sysColorObjects.hbrushBtnFace);
 370     CONV_RECT16TO32( &lphc->RectButton, &r );
 371
 372     Rectangle32(hdc, r.left, r.top, r.right, r.bottom );
 373     InflateRect32( &r, -1, -1 );
 374     if( (bBool = lphc->wState & CBF_BUTTONDOWN) )
 375     {
 376         GRAPH_DrawReliefRect(hdc, &r, 1, 0, TRUE);
 377         OffsetRect32( &r, 1, 1 );
 378     } else GRAPH_DrawReliefRect(hdc, &r, 1, 2, FALSE);
 379
 380     x = (r.left + r.right - CBitWidth) >> 1;
 381     y = (r.top + r.bottom - CBitHeight) >> 1;
 382
 383     InflateRect32( &r, -3, -3 );
 384     if( (bBool = CB_DISABLED(lphc)) )
 385     {
 386         GRAPH_SelectClipMask(hdc, hComboBmp, x + 1, y + 1 );
 387         FillRect32(hdc, &r, (HBRUSH32)GetStockObject32(WHITE_BRUSH));
 388     }
 389
 390     GRAPH_SelectClipMask(hdc, hComboBmp, x, y );
 391     FillRect32(hdc, &r, (HBRUSH32)GetStockObject32((bBool) ? GRAY_BRUSH : BLACK_BRUSH));
 392
 393     GRAPH_SelectClipMask(hdc, (HBITMAP32)0, 0, 0);
 394     SelectObject32( hdc, hPrevBrush );
 395 }
 396
 397 /***********************************************************************
 398  *           CBPaintText
 399  *
 400  * Paint CBS_DROPDOWNLIST text field / update edit control contents.
 401  */
 402 static void CBPaintText(LPHEADCOMBO lphc, HDC16 hdc)
 403 {
 404    INT32        id, size = 0;
 405    LPSTR        pText = NULL;
 406
 407    if( lphc->wState & CBF_NOREDRAW )
 408         return;
 409
 410    /* follow Windows combobox that sends a bunch of text
 411     * inquiries to its listbox while processing WM_PAINT. */
 412
 413    if( (id = SendMessage32A(lphc->hWndLBox, LB_GETCURSEL32, 0, 0) ) != LB_ERR )
 414    {
 415         size = SendMessage32A( lphc->hWndLBox, LB_GETTEXTLEN32, id, 0);
 416         if( (pText = HeapAlloc( GetProcessHeap(), 0, size + 1)) )
 417         {
 418             SendMessage32A( lphc->hWndLBox, LB_GETTEXT32, (WPARAM32)id, (LPARAM)pText );
 419             pText[size] = '\0'; /* just in case */
 420         } else return;
 421    }
 422
 423    if( lphc->wState & CBF_EDIT )
 424    {
 425         if( CB_HASSTRINGS(lphc) ) SetWindowText32A( lphc->hWndEdit, pText );
 426         if( lphc->wState & CBF_FOCUSED )
 427             SendMessage32A( lphc->hWndEdit, EM_SETSEL32, 0, (LPARAM)(-1));
 428    }
 429    else /* paint text field ourselves */
 430    {
 431         HBRUSH32 hPrevBrush = 0;
 432         HDC32    hDC = hdc;
 433
 434         if( !hDC )
 435         {
 436             if ((hDC = GetDC32(lphc->self->hwndSelf)))
 437             {
 438                 HBRUSH32 hBrush = SendMessage32A( lphc->owner,
 439                                                   WM_CTLCOLORLISTBOX,
 440                                                   hDC, lphc->self->hwndSelf );
 441                 hPrevBrush = SelectObject32( hDC,
 442                            (hBrush) ? hBrush : GetStockObject32(WHITE_BRUSH) );
 443             }
 444         }
 445         if( hDC )
 446         {
 447             RECT32      rect;
 448             UINT16      itemState;
 449             HFONT32     hPrevFont = (lphc->hFont) ? SelectObject32(hDC, lphc->hFont) : 0;
 450
 451             PatBlt32( hDC, (rect.left = lphc->RectEdit.left + SYSMETRICS_CXBORDER),
 452                            (rect.top = lphc->RectEdit.top + SYSMETRICS_CYBORDER),
 453                            (rect.right = lphc->RectEdit.right - SYSMETRICS_CXBORDER),
 454                            (rect.bottom = lphc->RectEdit.bottom - SYSMETRICS_CYBORDER) - 1, PATCOPY );
 455             InflateRect32( &rect, -1, -1 );
 456
 457             if( lphc->wState & CBF_FOCUSED &&
 458                 !(lphc->wState & CBF_DROPPED) )
 459             {
 460                 /* highlight */
 461
 462                 FillRect32( hDC, &rect, sysColorObjects.hbrushHighlight );
 463                 SetBkColor32( hDC, GetSysColor32( COLOR_HIGHLIGHT ) );
 464                 SetTextColor32( hDC, GetSysColor32( COLOR_HIGHLIGHTTEXT ) );
 465                 itemState = ODS_SELECTED | ODS_FOCUS;
 466             } else itemState = 0;
 467
 468             if( CB_OWNERDRAWN(lphc) )
 469             {
 470                 DRAWITEMSTRUCT32 dis;
 471
 472                 if( lphc->self->dwStyle & WS_DISABLED ) itemState |= ODS_DISABLED;
 473
 474                 dis.CtlType     = ODT_COMBOBOX;
 475                 dis.CtlID       = lphc->self->wIDmenu;
 476                 dis.hwndItem    = lphc->self->hwndSelf;
 477                 dis.itemAction  = ODA_DRAWENTIRE;
 478                 dis.itemID      = id;
 479                 dis.itemState   = itemState;
 480                 dis.hDC         = hDC;
 481                 dis.rcItem      = rect;
 482                 dis.itemData    = SendMessage32A( lphc->hWndLBox, LB_GETITEMDATA32,
 483                                                                   (WPARAM32)id, 0 );
 484                 SendMessage32A( lphc->owner, WM_DRAWITEM,
 485                                 lphc->self->wIDmenu, (LPARAM)&dis );
 486             }
 487             else
 488             {
 489                 ExtTextOut32A( hDC, rect.left + 1, rect.top + 1,
 490                                ETO_OPAQUE | ETO_CLIPPED, &rect,
 491                                (pText) ? pText : "" , size, NULL );
 492                 if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
 493                     DrawFocusRect32( hDC, &rect );
 494             }
 495
 496             if( hPrevFont ) SelectObject32(hDC, hPrevFont );
 497             if( !hdc )
 498             {
 499                 if( hPrevBrush ) SelectObject32( hDC, hPrevBrush );
 500                 ReleaseDC32( lphc->self->hwndSelf, hDC );
 501             }
 502         }
 503    }
 504    HeapFree( GetProcessHeap(), 0, pText );
 505 }
 506
 507 /***********************************************************************
 508  *           COMBO_Paint
 509  */
 510 static LRESULT COMBO_Paint(LPHEADCOMBO lphc, HDC16 hParamDC)
 511 {
 512   PAINTSTRUCT16 ps;
 513   HDC16         hDC;
 514
 515   hDC = (hParamDC) ? hParamDC
 516                    : BeginPaint16( lphc->self->hwndSelf, &ps);
 517   if( hDC && !(lphc->wState & CBF_NOREDRAW) )
 518   {
 519       HBRUSH32  hPrevBrush, hBkgBrush;
 520
 521       hBkgBrush = SendMessage32A( lphc->owner, WM_CTLCOLORLISTBOX,
 522                                   hDC, lphc->self->hwndSelf );
 523       if( !hBkgBrush ) hBkgBrush = GetStockObject32(WHITE_BRUSH);
 524
 525       hPrevBrush = SelectObject32( hDC, hBkgBrush );
 526       if( !IsRectEmpty16(&lphc->RectButton) )
 527       {
 528           /* paint everything to the right of the text field */
 529
 530           PatBlt32( hDC, lphc->RectEdit.right, lphc->RectEdit.top,
 531                          lphc->RectButton.right - lphc->RectEdit.right,
 532                          lphc->RectEdit.bottom - lphc->RectEdit.top, PATCOPY );
 533           CBPaintButton( lphc, hDC );
 534       }
 535
 536       if( !(lphc->wState & CBF_EDIT) )
 537       {
 538           /* paint text field */
 539
 540           GRAPH_DrawRectangle( hDC, lphc->RectEdit.left, lphc->RectEdit.top,
 541                                     lphc->RectEdit.right - lphc->RectEdit.left,
 542                                     lphc->RectButton.bottom - lphc->RectButton.top,
 543                                     sysColorObjects.hpenWindowFrame );
 544           CBPaintText( lphc, hDC );
 545       }
 546       if( hPrevBrush ) SelectObject32( hDC, hPrevBrush );
 547   }
 548   if( !hParamDC ) EndPaint16(lphc->self->hwndSelf, &ps);
 549   return 0;
 550 }
 551
 552 /***********************************************************************
 553  *           CBUpdateLBox
 554  *
 555  * Select listbox entry according to the contents of the edit control.
 556  */
 557 static INT32 CBUpdateLBox( LPHEADCOMBO lphc )
 558 {
 559    INT32        length, idx, ret;
 560    LPSTR        pText = NULL;
 561
 562    idx = ret = LB_ERR;
 563    length = CB_GETEDITTEXTLENGTH( lphc );
 564
 565    if( length > 0 )
 566        pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
 567
 568    dprintf_combo(stddeb,"\tCBUpdateLBox: edit text length %i\n", length );
 569
 570    if( pText )
 571    {
 572        if( length ) GetWindowText32A( lphc->hWndEdit, pText, length + 1);
 573        else pText[0] = '\0';
 574        idx = SendMessage32A( lphc->hWndLBox, LB_FINDSTRING32,
 575                              (WPARAM32)(-1), (LPARAM)pText );
 576        if( idx == LB_ERR ) idx = 0;     /* select first item */
 577        else ret = idx;
 578        HeapFree( GetProcessHeap(), 0, pText );
 579    }
 580
 581    /* select entry */
 582
 583    SendMessage32A( lphc->hWndLBox, LB_SETCURSEL32, (WPARAM32)idx, 0 );
 584
 585    if( idx >= 0 )
 586    {
 587        SendMessage32A( lphc->hWndLBox, LB_SETTOPINDEX32, (WPARAM32)idx, 0 );
 588        /* probably superfluous but Windows sends this too */
 589        SendMessage32A( lphc->hWndLBox, LB_SETCARETINDEX32, (WPARAM32)idx, 0 );
 590    }
 591    return ret;
 592 }
 593
 594 /***********************************************************************
 595  *           CBUpdateEdit
 596  *
 597  * Copy a listbox entry to the edit control.
 598  */
 599 static void CBUpdateEdit( LPHEADCOMBO lphc , INT32 index )
 600 {
 601    INT32        length;
 602    LPSTR        pText = NULL;
 603
 604    dprintf_combo(stddeb,"\tCBUpdateEdit: %i\n", index );
 605
 606    if( index == -1 )
 607    {
 608        length = CB_GETEDITTEXTLENGTH( lphc );
 609        if( length )
 610        {
 611            if( (pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1)) )
 612            {
 613                 GetWindowText32A( lphc->hWndEdit, pText, length + 1 );
 614                 index = SendMessage32A( lphc->hWndLBox, LB_FINDSTRING32,
 615                                         (WPARAM32)(-1), (LPARAM)pText );
 616                 HeapFree( GetProcessHeap(), 0, pText );
 617            }
 618        }
 619    }
 620
 621    if( index >= 0 ) /* got an entry */
 622    {
 623        length = SendMessage32A( lphc->hWndLBox, LB_GETTEXTLEN32, (WPARAM32)index, 0);
 624        if( length )
 625        {
 626            if( (pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1)) )
 627            {
 628                 SendMessage32A( lphc->hWndLBox, LB_GETTEXT32,
 629                                 (WPARAM32)index, (LPARAM)pText );
 630                 SendMessage32A( lphc->hWndEdit, WM_SETTEXT, 0, (LPARAM)pText );
 631                 SendMessage32A( lphc->hWndEdit, EM_SETSEL32, 0, (LPARAM)(-1) );
 632                 HeapFree( GetProcessHeap(), 0, pText );
 633            }
 634        }
 635    }
 636 }
 637
 638 /***********************************************************************
 639  *           CBDropDown
 640  *
 641  * Show listbox popup.
 642  */
 643 static void CBDropDown( LPHEADCOMBO lphc )
 644 {
 645    INT32        index;
 646    RECT16       rect;
 647    LPRECT16     pRect = NULL;
 648
 649    dprintf_combo(stddeb,"Combo [%04x]: drop down\n", CB_HWND(lphc));
 650
 651    CB_NOTIFY( lphc, CBN_DROPDOWN );
 652
 653    /* set selection */
 654
 655    lphc->wState |= CBF_DROPPED;
 656    if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
 657    {
 658        index = CBUpdateLBox( lphc );
 659        if( !(lphc->wState & CBF_CAPTURE) ) CBUpdateEdit( lphc, index );
 660    }
 661    else
 662    {
 663        index = SendMessage32A( lphc->hWndLBox, LB_GETCURSEL32, 0, 0 );
 664        if( index == LB_ERR ) index = 0;
 665        SendMessage32A( lphc->hWndLBox, LB_SETTOPINDEX32, (WPARAM32)index, 0 );
 666        SendMessage32A( lphc->hWndLBox, LB_CARETON32, 0, 0 );
 667        pRect = &lphc->RectEdit;
 668    }
 669
 670    /* now set popup position */
 671
 672    GetWindowRect16( lphc->self->hwndSelf, &rect );
 673
 674    rect.top += lphc->RectEdit.bottom - lphc->RectEdit.top - SYSMETRICS_CYBORDER;
 675    rect.bottom = rect.top + lphc->RectCombo.bottom -
 676                             lphc->RectCombo.top - SYSMETRICS_CYBORDER;
 677    rect.right = rect.left + lphc->RectCombo.right - lphc->RectCombo.left;
 678    rect.left += ( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST ) ? 0 : CBitOffset;
 679
 680    SetWindowPos32( lphc->hWndLBox, HWND_TOP, rect.left, rect.top,
 681                  rect.right - rect.left, rect.bottom - rect.top,
 682                  SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOREDRAW);
 683    if( !(lphc->wState & CBF_NOREDRAW) )
 684    {
 685        if( pRect )
 686            RedrawWindow16( lphc->self->hwndSelf, pRect, 0, RDW_INVALIDATE |
 687                            RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
 688        ShowWindow32( lphc->hWndLBox, SW_SHOWNA );
 689    }
 690 }
 691
 692 /***********************************************************************
 693  *           CBRollUp
 694  *
 695  * Hide listbox popup.
 696  */
 697 static void CBRollUp( LPHEADCOMBO lphc, BOOL32 ok, BOOL32 bButton )
 698 {
 699    HWND32       hWnd = lphc->self->hwndSelf;
 700
 701    CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
 702
 703    if( IsWindow32( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
 704    {
 705
 706        dprintf_combo(stddeb,"Combo [%04x]: roll up [%i]\n", CB_HWND(lphc), (INT32)ok );
 707
 708        /* always send WM_LBUTTONUP? */
 709        SendMessage32A( lphc->hWndLBox, WM_LBUTTONUP, 0, (LPARAM)(-1) );
 710
 711        if( lphc->wState & CBF_DROPPED )
 712        {
 713            RECT16       rect;
 714
 715            lphc->wState &= ~CBF_DROPPED;
 716            ShowWindow32( lphc->hWndLBox, SW_HIDE );
 717
 718            if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
 719            {
 720                INT32 index = SendMessage32A( lphc->hWndLBox, LB_GETCURSEL32, 0, 0 );
 721                CBUpdateEdit( lphc, index );
 722                rect = lphc->RectButton;
 723            }
 724            else
 725            {
 726                if( bButton )
 727                    UnionRect16( &rect, &lphc->RectButton,
 728                                        &lphc->RectEdit );
 729                else
 730                    rect = lphc->RectEdit;
 731                bButton = TRUE;
 732            }
 733
 734            if( bButton && !(lphc->wState & CBF_NOREDRAW) )
 735                RedrawWindow16( hWnd, &rect, 0, RDW_INVALIDATE |
 736                                RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
 737            CB_NOTIFY( lphc, CBN_CLOSEUP );
 738        }
 739    }
 740 }
 741
 742 /***********************************************************************
 743  *           COMBO_FlipListbox
 744  *
 745  * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
 746  */
 747 BOOL32 COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL32 bRedrawButton )
 748 {
 749    if( lphc->wState & CBF_DROPPED )
 750    {
 751        CBRollUp( lphc, TRUE, bRedrawButton );
 752        return FALSE;
 753    }
 754
 755    CBDropDown( lphc );
 756    return TRUE;
 757 }
 758
 759 /***********************************************************************
 760  *           COMBO_GetLBWindow
 761  *
 762  * Edit control helper.
 763  */
 764 HWND32 COMBO_GetLBWindow( WND* pWnd )
 765 {
 766   LPHEADCOMBO       lphc = CB_GETPTR(pWnd);
 767   if( lphc ) return lphc->hWndLBox;
 768   return 0;
 769 }
 770
 771
 772 /***********************************************************************
 773  *           CBRepaintButton
 774  */
 775 static void CBRepaintButton( LPHEADCOMBO lphc )
 776 {
 777    HDC32        hDC = GetDC32( lphc->self->hwndSelf );
 778
 779    if( hDC )
 780    {
 781        CBPaintButton( lphc, (HDC16)hDC );
 782        ReleaseDC32( lphc->self->hwndSelf, hDC );
 783    }
 784 }
 785
 786 /***********************************************************************
 787  *           COMBO_SetFocus
 788  */
 789 static void COMBO_SetFocus( LPHEADCOMBO lphc )
 790 {
 791    if( !(lphc->wState & CBF_FOCUSED) )
 792    {
 793        if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
 794            SendMessage32A( lphc->hWndLBox, LB_CARETON32, 0, 0 );
 795
 796        if( lphc->wState & CBF_EDIT )
 797            SendMessage32A( lphc->hWndEdit, EM_SETSEL32, 0, (LPARAM)(-1) );
 798        lphc->wState |= CBF_FOCUSED;
 799        if( !(lphc->wState & CBF_EDIT) ) CBPaintText( lphc, 0 );
 800
 801        CB_NOTIFY( lphc, CBN_SETFOCUS );
 802    }
 803 }
 804
 805 /***********************************************************************
 806  *           COMBO_KillFocus
 807  */
 808 static void COMBO_KillFocus( LPHEADCOMBO lphc )
 809 {
 810    HWND32       hWnd = lphc->self->hwndSelf;
 811
 812    if( lphc->wState & CBF_FOCUSED )
 813    {
 814        SendMessage32A( hWnd, WM_LBUTTONUP, 0, (LPARAM)(-1) );
 815
 816        CBRollUp( lphc, FALSE, TRUE );
 817        if( IsWindow32( hWnd ) )
 818        {
 819            if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
 820                SendMessage32A( lphc->hWndLBox, LB_CARETOFF32, 0, 0 );
 821
 822            lphc->wState &= ~CBF_FOCUSED;
 823
 824            /* redraw text */
 825            if( lphc->wState & CBF_EDIT )
 826                SendMessage32A( lphc->hWndEdit, EM_SETSEL32, (WPARAM32)(-1), 0 );
 827            else CBPaintText( lphc, 0 );
 828
 829            CB_NOTIFY( lphc, CBN_KILLFOCUS );
 830        }
 831    }
 832 }
 833
 834 /***********************************************************************
 835  *           COMBO_Command
 836  */
 837 static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM32 wParam, HWND32 hWnd )
 838 {
 839    if( lphc->wState & CBF_EDIT && lphc->hWndEdit == hWnd )
 840    {
 841        /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
 842
 843        switch( HIWORD(wParam) >> 8 )
 844        {
 845            case (EN_SETFOCUS >> 8):
 846
 847                 dprintf_combo(stddeb,"Combo [%04x]: edit [%04x] got focus\n",
 848                                      CB_HWND(lphc), (HWND16)lphc->hWndEdit );
 849
 850                 if( !(lphc->wState & CBF_FOCUSED) ) COMBO_SetFocus( lphc );
 851                 break;
 852
 853            case (EN_KILLFOCUS >> 8):
 854
 855                 dprintf_combo(stddeb,"Combo [%04x]: edit [%04x] lost focus\n",
 856                                       CB_HWND(lphc), (HWND16)lphc->hWndEdit );
 857
 858                 /* NOTE: it seems that Windows' edit control sends an
 859                  * undocumented message WM_USER + 0x1B instead of this
 860                  * notification (only when it happens to be a part of
 861                  * the combo). ?? - AK.
 862                  */
 863
 864                 COMBO_KillFocus( lphc );
 865                 break;
 866
 867
 868            case (EN_CHANGE >> 8):
 869                 CB_NOTIFY( lphc, CBN_EDITCHANGE );
 870                 CBUpdateLBox( lphc );
 871                 break;
 872
 873            case (EN_UPDATE >> 8):
 874                 CB_NOTIFY( lphc, CBN_EDITUPDATE );
 875                 break;
 876
 877            case (EN_ERRSPACE >> 8):
 878                 CB_NOTIFY( lphc, CBN_ERRSPACE );
 879        }
 880    }
 881    else if( lphc->hWndLBox == hWnd )
 882    {
 883        switch( HIWORD(wParam) )
 884        {
 885            case LBN_ERRSPACE:
 886                 CB_NOTIFY( lphc, CBN_ERRSPACE );
 887                 break;
 888
 889            case LBN_DBLCLK:
 890                 CB_NOTIFY( lphc, CBN_DBLCLK );
 891                 break;
 892
 893            case LBN_SELCHANGE:
 894            case LBN_SELCANCEL:
 895
 896                 dprintf_combo(stddeb,"Combo [%04x]: lbox selection change [%04x]\n",
 897                                                       CB_HWND(lphc), lphc->wState );
 898
 899                 /* do not roll up if selection is being tracked
 900                  * by arrowkeys in the dropdown listbox */
 901
 902                 if( (lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP) )
 903                      CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
 904                 else lphc->wState &= ~CBF_NOROLLUP;
 905
 906                 CB_NOTIFY( lphc, CBN_SELCHANGE );
 907                 CBPaintText( lphc, 0 );
 908                 /* fall through */
 909
 910            case LBN_SETFOCUS:
 911            case LBN_KILLFOCUS:
 912                 /* nothing to do here since ComboLBox always resets the focus to its
 913                  * combo/edit counterpart */
 914                  break;
 915        }
 916    }
 917    return 0;
 918 }
 919
 920 /***********************************************************************
 921  *           COMBO_ItemOp
 922  *
 923  * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
 924  */
 925 static LRESULT COMBO_ItemOp32( LPHEADCOMBO lphc, UINT32 msg,
 926                                WPARAM32 wParam, LPARAM lParam )
 927 {
 928    HWND32       hWnd = lphc->self->hwndSelf;
 929
 930    dprintf_combo(stddeb,"Combo [%04x]: ownerdraw op %04x\n",
 931                                        CB_HWND(lphc), (UINT16)msg );
 932
 933 #define lpIS    ((LPDELETEITEMSTRUCT32)lParam)
 934
 935    /* two first items are the same in all 4 structs */
 936    lpIS->CtlType = ODT_COMBOBOX;
 937    lpIS->CtlID   = lphc->self->wIDmenu;
 938
 939    switch( msg )        /* patch window handle */
 940    {
 941         case WM_DELETEITEM:
 942              lpIS->hwndItem = hWnd;
 943 #undef  lpIS
 944              break;
 945         case WM_DRAWITEM:
 946 #define lpIS    ((LPDRAWITEMSTRUCT32)lParam)
 947              lpIS->hwndItem = hWnd;
 948 #undef  lpIS
 949              break;
 950         case WM_COMPAREITEM:
 951 #define lpIS    ((LPCOMPAREITEMSTRUCT32)lParam)
 952              lpIS->hwndItem = hWnd;
 953 #undef  lpIS
 954              break;
 955    }
 956
 957   return SendMessage32A( lphc->owner, msg, lphc->self->wIDmenu, lParam );
 958 }
 959
 960 /***********************************************************************
 961  *           COMBO_GetText
 962  */
 963 static LRESULT COMBO_GetText( LPHEADCOMBO lphc, UINT32 N, LPSTR lpText)
 964 {
 965    INT32        idx;
 966
 967    if( lphc->wState & CBF_EDIT )
 968        return SendMessage32A( lphc->hWndEdit, WM_GETTEXT,
 969                              (WPARAM32)N, (LPARAM)lpText );
 970
 971    /* get it from the listbox */
 972
 973    idx = SendMessage32A( lphc->hWndLBox, LB_GETCURSEL32, 0, 0 );
 974    if( idx != LB_ERR )
 975    {
 976        LPSTR        lpBuffer;
 977        INT32        length = SendMessage32A( lphc->hWndLBox, LB_GETTEXTLEN32,
 978                                             (WPARAM32)idx, 0 );
 979
 980        /* 'length' is without the terminating character */
 981        if( length >= N )
 982            lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
 983        else
 984            lpBuffer = lpText;
 985
 986        if( lpBuffer )
 987        {
 988            INT32    n = SendMessage32A( lphc->hWndLBox, LB_GETTEXT32,
 989                                        (WPARAM32)idx, (LPARAM)lpText );
 990
 991            /* truncate if buffer is too short */
 992
 993            if( length >= N )
 994            {
 995                if( n != LB_ERR ) memcpy( lpText, lpBuffer, (N>n) ? n+1 : N-1 );
 996                lpText[N - 1] = '\0';
 997                HeapFree( GetProcessHeap(), 0, lpBuffer );
 998            }
 999            return (LRESULT)n;
1000        }
1001    }
1002    return 0;
1003 }
1004
1005
1006 /***********************************************************************
1007  *           CBResetPos
1008  *
1009  * This function sets window positions according to the updated
1010  * component placement struct.
1011  */
1012 static void CBResetPos( LPHEADCOMBO lphc, LPRECT16 lbRect, BOOL32 bRedraw )
1013 {
1014    BOOL32       bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
1015
1016    /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
1017     * sizing messages */
1018
1019    if( lphc->wState & CBF_EDIT )
1020        SetWindowPos32( lphc->hWndEdit, 0, lphc->RectEdit.left, lphc->RectEdit.top,
1021                        lphc->RectEdit.right - lphc->RectEdit.left,
1022                        lphc->RectEdit.bottom - lphc->RectEdit.top,
1023                        SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
1024
1025    if( bDrop )
1026        OffsetRect16( lbRect, lphc->RectCombo.left, lphc->RectCombo.top );
1027
1028    lbRect->right -= lbRect->left;       /* convert to width */
1029    lbRect->bottom -= lbRect->top;
1030    SetWindowPos32( lphc->hWndLBox, 0, lbRect->left, lbRect->top,
1031                    lbRect->right, lbRect->bottom,
1032                    SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
1033
1034    if( bDrop )
1035    {
1036        if( lphc->wState & CBF_DROPPED )
1037        {
1038            lphc->wState &= ~CBF_DROPPED;
1039            ShowWindow32( lphc->hWndLBox, SW_HIDE );
1040        }
1041
1042        lphc->wState |= CBF_NORESIZE;
1043        SetWindowPos32( lphc->self->hwndSelf, 0, 0, 0,
1044                        lphc->RectCombo.right - lphc->RectCombo.left,
1045                        lphc->RectEdit.bottom - lphc->RectEdit.top,
1046                        SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW );
1047        lphc->wState &= ~CBF_NORESIZE;
1048        if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
1049            RedrawWindow32( lphc->self->hwndSelf, NULL, 0,
1050                            RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
1051    }
1052 }
1053
1054
1055 /***********************************************************************
1056  *           COMBO_Size
1057  */
1058 static void COMBO_Size( LPHEADCOMBO lphc )
1059 {
1060   RECT16        rect;
1061   INT16         w, h;
1062
1063   GetWindowRect16( lphc->self->hwndSelf, &rect );
1064   w = rect.right - rect.left; h = rect.bottom - rect.top;
1065
1066   dprintf_combo(stddeb,"COMBO_Size: w = %i, h = %i\n", w, h );
1067
1068   /* CreateWindow() may send a bogus WM_SIZE, ignore it */
1069
1070   if( w == (lphc->RectCombo.right - lphc->RectCombo.left) )
1071       if( (CB_GETTYPE(lphc) == CBS_SIMPLE) &&
1072           (h == (lphc->RectCombo.bottom - lphc->RectCombo.top)) )
1073           return;
1074       else if( (lphc->dwStyle & CBS_DROPDOWN) &&
1075                (h == (lphc->RectEdit.bottom - lphc->RectEdit.top))  )
1076                return;
1077
1078   lphc->RectCombo = rect;
1079   CBCalcPlacement( lphc, &lphc->RectEdit, &lphc->RectButton, &rect );
1080   CBResetPos( lphc, &rect, TRUE );
1081 }
1082
1083
1084 /***********************************************************************
1085  *           COMBO_Font
1086  */
1087 static void COMBO_Font( LPHEADCOMBO lphc, HFONT16 hFont, BOOL32 bRedraw )
1088 {
1089   RECT16        rect;
1090
1091   lphc->hFont = hFont;
1092
1093   if( lphc->wState & CBF_EDIT )
1094       SendMessage32A( lphc->hWndEdit, WM_SETFONT, (WPARAM32)hFont, bRedraw );
1095   SendMessage32A( lphc->hWndLBox, WM_SETFONT, (WPARAM32)hFont, bRedraw );
1096
1097   GetWindowRect16( lphc->self->hwndSelf, &rect );
1098   OffsetRect16( &lphc->RectCombo, rect.left - lphc->RectCombo.left,
1099                                   rect.top - lphc->RectCombo.top );
1100   CBCalcPlacement( lphc, &lphc->RectEdit,
1101                          &lphc->RectButton, &rect );
1102   CBResetPos( lphc, &rect, bRedraw );
1103 }
1104
1105
1106 /***********************************************************************
1107  *           COMBO_SetItemHeight
1108  */
1109 static LRESULT COMBO_SetItemHeight( LPHEADCOMBO lphc, INT32 index, INT32 height )
1110 {
1111    LRESULT      lRet = CB_ERR;
1112
1113    if( index == -1 ) /* set text field height */
1114    {
1115        if( height < 32768 )
1116        {
1117            RECT16       rect;
1118
1119            lphc->editHeight = height;
1120            GetWindowRect16( lphc->self->hwndSelf, &rect );
1121            OffsetRect16( &lphc->RectCombo, rect.left - lphc->RectCombo.left,
1122                                            rect.top - lphc->RectCombo.top );
1123            CBCalcPlacement( lphc, &lphc->RectEdit,
1124                                   &lphc->RectButton, &rect );
1125            CBResetPos( lphc, &rect, TRUE );
1126            lRet = height;
1127        }
1128    }
1129    else if ( CB_OWNERDRAWN(lphc) )      /* set listbox item height */
1130         lRet = SendMessage32A( lphc->hWndLBox, LB_SETITEMHEIGHT32,
1131                               (WPARAM32)index, (LPARAM)height );
1132    return lRet;
1133 }
1134
1135 /***********************************************************************
1136  *           COMBO_SelectString
1137  */
1138 static LRESULT COMBO_SelectString( LPHEADCOMBO lphc, INT32 start, LPCSTR pText )
1139 {
1140    INT32 index = SendMessage32A( lphc->hWndLBox, LB_SELECTSTRING32,
1141                                  (WPARAM32)start, (LPARAM)pText );
1142    if( index >= 0 )
1143         if( lphc->wState & CBF_EDIT )
1144             CBUpdateEdit( lphc, index );
1145         else
1146             CBPaintText( lphc, 0 );
1147    return (LRESULT)index;
1148 }
1149
1150 /***********************************************************************
1151  *           COMBO_LButtonDown
1152  */
1153 static void COMBO_LButtonDown( LPHEADCOMBO lphc, LPARAM lParam )
1154 {
1155    BOOL32      bButton = PtInRect16(&lphc->RectButton, MAKEPOINT16(lParam));
1156    HWND32      hWnd = lphc->self->hwndSelf;
1157
1158    if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
1159        (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
1160    {
1161        lphc->wState |= CBF_BUTTONDOWN;
1162        if( lphc->wState & CBF_DROPPED )
1163        {
1164            /* got a click to cancel selection */
1165
1166            CBRollUp( lphc, TRUE, FALSE );
1167            if( !IsWindow32( hWnd ) ) return;
1168
1169            if( lphc->wState & CBF_CAPTURE )
1170            {
1171                lphc->wState &= ~CBF_CAPTURE;
1172                ReleaseCapture();
1173            }
1174            lphc->wState &= ~CBF_BUTTONDOWN;
1175        }
1176        else
1177        {
1178            /* drop down the listbox and start tracking */
1179
1180            lphc->wState |= CBF_CAPTURE;
1181            CBDropDown( lphc );
1182            SetCapture32( hWnd );
1183        }
1184        if( bButton ) CBRepaintButton( lphc );
1185    }
1186 }
1187
1188 /***********************************************************************
1189  *           COMBO_LButtonUp
1190  *
1191  * Release capture and stop tracking if needed.
1192  */
1193 static void COMBO_LButtonUp( LPHEADCOMBO lphc, LPARAM lParam )
1194 {
1195    if( lphc->wState & CBF_CAPTURE )
1196    {
1197        lphc->wState &= ~CBF_CAPTURE;
1198        if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
1199        {
1200            INT32 index = CBUpdateLBox( lphc );
1201            CBUpdateEdit( lphc, index );
1202        }
1203        ReleaseCapture();
1204    }
1205
1206    if( lphc->wState & CBF_BUTTONDOWN )
1207    {
1208        lphc->wState &= ~CBF_BUTTONDOWN;
1209        CBRepaintButton( lphc );
1210    }
1211 }
1212
1213 /***********************************************************************
1214  *           COMBO_MouseMove
1215  *
1216  * Two things to do - track combo button and release capture when
1217  * pointer goes into the listbox.
1218  */
1219 static void COMBO_MouseMove( LPHEADCOMBO lphc, WPARAM32 wParam, LPARAM lParam )
1220 {
1221    RECT16       lbRect;
1222
1223    if( lphc->wState & CBF_BUTTONDOWN )
1224    {
1225        BOOL32   bButton = PtInRect16(&lphc->RectButton, MAKEPOINT16(lParam));
1226
1227        if( !bButton )
1228        {
1229            lphc->wState &= ~CBF_BUTTONDOWN;
1230            CBRepaintButton( lphc );
1231        }
1232    }
1233
1234    GetClientRect16( lphc->hWndLBox, &lbRect );
1235    MapWindowPoints16( lphc->self->hwndSelf,
1236                       lphc->hWndLBox, (LPPOINT16)&lParam, 1 );
1237    if( PtInRect16(&lbRect, MAKEPOINT16(lParam)) )
1238    {
1239        lphc->wState &= ~CBF_CAPTURE;
1240        ReleaseCapture();
1241        if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc );
1242
1243        /* hand over pointer tracking */
1244        SendMessage32A( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
1245    }
1246 }
1247
1248
1249 /***********************************************************************
1250  *           ComboWndProc
1251  *
1252  * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
1253  */
1254 LRESULT WINAPI ComboWndProc( HWND32 hwnd, UINT32 message,
1255                              WPARAM32 wParam, LPARAM lParam )
1256 {
1257     WND*        pWnd = WIN_FindWndPtr(hwnd);
1258
1259     if( pWnd )
1260     {
1261       LPHEADCOMBO       lphc = CB_GETPTR(pWnd);
1262
1263       dprintf_combo( stddeb, "Combo [%04x]: msg %s wp %08x lp %08lx\n",
1264                      pWnd->hwndSelf, SPY_GetMsgName(message), wParam, lParam );
1265
1266       if( lphc || message == WM_NCCREATE )
1267       switch(message)
1268       {
1269
1270         /* System messages */
1271
1272         case WM_NCCREATE:
1273                 return COMBO_NCCreate(pWnd, lParam);
1274
1275         case WM_NCDESTROY:
1276                 COMBO_NCDestroy(lphc);
1277                 break;
1278
1279         case WM_CREATE:
1280                 return COMBO_Create(lphc, pWnd, lParam);
1281
1282         case WM_PAINT:
1283                 /* wParam may contain a valid HDC! */
1284                 return COMBO_Paint(lphc, (HDC16)wParam);
1285
1286         case WM_ERASEBKGND:
1287                 return TRUE;
1288
1289         case WM_GETDLGCODE:
1290                 return (LRESULT)(DLGC_WANTARROWS | DLGC_WANTCHARS);
1291
1292         case WM_SIZE:
1293                 if( lphc->hWndLBox &&
1294                   !(lphc->wState & CBF_NORESIZE) ) COMBO_Size( lphc );
1295                 return TRUE;
1296
1297         case WM_SETFONT:
1298                 COMBO_Font( lphc, (HFONT16)wParam, (BOOL32)lParam );
1299                 return TRUE;
1300
1301         case WM_GETFONT:
1302                 return (LRESULT)lphc->hFont;
1303
1304         case WM_SETFOCUS:
1305                 if( lphc->wState & CBF_EDIT )
1306                     SetFocus32( lphc->hWndEdit );
1307                 else
1308                     COMBO_SetFocus( lphc );
1309                 return TRUE;
1310
1311         case WM_KILLFOCUS:
1312 #define hwndFocus ((HWND16)wParam)
1313                 if( !hwndFocus ||
1314                     (hwndFocus != lphc->hWndEdit && hwndFocus != lphc->hWndLBox ))
1315                     COMBO_KillFocus( lphc );
1316 #undef hwndFocus
1317                 return TRUE;
1318
1319         case WM_COMMAND:
1320                 return COMBO_Command( lphc, wParam, (HWND32)lParam );
1321
1322         case WM_GETTEXT:
1323                 return COMBO_GetText( lphc, (UINT32)wParam, (LPSTR)lParam );
1324
1325         case WM_SETTEXT:
1326         case WM_GETTEXTLENGTH:
1327         case WM_CLEAR:
1328         case WM_CUT:
1329         case WM_PASTE:
1330         case WM_COPY:
1331                 if( lphc->wState & CBF_EDIT )
1332                     return SendMessage32A( lphc->hWndEdit, message, wParam, lParam );
1333                 return CB_ERR;
1334
1335         case WM_DRAWITEM:
1336         case WM_DELETEITEM:
1337         case WM_COMPAREITEM:
1338         case WM_MEASUREITEM:
1339                 return COMBO_ItemOp32( lphc, message, wParam, lParam );
1340
1341         case WM_ENABLE:
1342                 if( lphc->wState & CBF_EDIT )
1343                     EnableWindow32( lphc->hWndEdit, (BOOL32)wParam );
1344                 EnableWindow32( lphc->hWndLBox, (BOOL32)wParam );
1345                 return TRUE;
1346
1347         case WM_SETREDRAW:
1348                 if( wParam )
1349                     lphc->wState &= ~CBF_NOREDRAW;
1350                 else
1351                     lphc->wState |= CBF_NOREDRAW;
1352
1353                 if( lphc->wState & CBF_EDIT )
1354                     SendMessage32A( lphc->hWndEdit, message, wParam, lParam );
1355                 SendMessage32A( lphc->hWndLBox, message, wParam, lParam );
1356                 break;
1357
1358         case WM_SYSKEYDOWN:
1359                 if( KEYDATA_ALT & HIWORD(lParam) )
1360                     if( wParam == VK_UP || wParam == VK_DOWN )
1361                         COMBO_FlipListbox( lphc, TRUE );
1362                 break;
1363
1364         case WM_CHAR:
1365         case WM_KEYDOWN:
1366                 if( lphc->wState & CBF_EDIT )
1367                     return SendMessage32A( lphc->hWndEdit, message, wParam, lParam );
1368                 else
1369                     return SendMessage32A( lphc->hWndLBox, message, wParam, lParam );
1370
1371         case WM_LBUTTONDOWN:
1372                 if( !(lphc->wState & CBF_FOCUSED) ) SetFocus32( lphc->self->hwndSelf );
1373                 if( lphc->wState & CBF_FOCUSED ) COMBO_LButtonDown( lphc, lParam );
1374                 return TRUE;
1375
1376         case WM_LBUTTONUP:
1377                 COMBO_LButtonUp( lphc, lParam );
1378                 return TRUE;
1379
1380         case WM_MOUSEMOVE:
1381                 if( lphc->wState & CBF_CAPTURE )
1382                     COMBO_MouseMove( lphc, wParam, lParam );
1383                 return TRUE;
1384
1385         /* Combo messages */
1386
1387         case CB_ADDSTRING16:
1388                 if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1389         case CB_ADDSTRING32:
1390                 return SendMessage32A( lphc->hWndLBox, LB_ADDSTRING32, 0, lParam);
1391
1392         case CB_INSERTSTRING16:
1393                 wParam = (INT32)(INT16)wParam;
1394                 if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1395         case CB_INSERTSTRING32:
1396                 return SendMessage32A( lphc->hWndLBox, LB_INSERTSTRING32, wParam, lParam);
1397
1398         case CB_DELETESTRING16:
1399         case CB_DELETESTRING32:
1400                 return SendMessage32A( lphc->hWndLBox, LB_DELETESTRING32, wParam, 0);
1401
1402         case CB_SELECTSTRING16:
1403                 wParam = (INT32)(INT16)wParam;
1404                 if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1405         case CB_SELECTSTRING32:
1406                 return COMBO_SelectString( lphc, (INT32)wParam, (LPSTR)lParam );
1407
1408         case CB_FINDSTRING16:
1409                 wParam = (INT32)(INT16)wParam;
1410                 if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1411         case CB_FINDSTRING32:
1412                 return SendMessage32A( lphc->hWndLBox, LB_FINDSTRING32, wParam, lParam);
1413
1414         case CB_FINDSTRINGEXACT16:
1415                 wParam = (INT32)(INT16)wParam;
1416                 if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1417         case CB_FINDSTRINGEXACT32:
1418                 return SendMessage32A( lphc->hWndLBox, LB_FINDSTRINGEXACT32,
1419                                                        wParam, lParam );
1420         case CB_SETITEMHEIGHT16:
1421                 wParam = (INT32)(INT16)wParam;
1422         case CB_SETITEMHEIGHT32:
1423                 return COMBO_SetItemHeight( lphc, (INT32)wParam, (INT32)lParam);
1424
1425         case CB_RESETCONTENT16:
1426         case CB_RESETCONTENT32:
1427                 SendMessage32A( lphc->hWndLBox, LB_RESETCONTENT32, 0, 0 );
1428                 CBPaintText( lphc, 0 );
1429                 return TRUE;
1430
1431         case CB_INITSTORAGE32:
1432                 return SendMessage32A( lphc->hWndLBox, LB_INITSTORAGE32, wParam, lParam);
1433
1434         case CB_GETHORIZONTALEXTENT32:
1435                 return SendMessage32A( lphc->hWndLBox, LB_GETHORIZONTALEXTENT32, 0, 0);
1436
1437         case CB_SETHORIZONTALEXTENT32:
1438                 return SendMessage32A( lphc->hWndLBox, LB_SETHORIZONTALEXTENT32, wParam, 0);
1439
1440         case CB_GETTOPINDEX32:
1441                 return SendMessage32A( lphc->hWndLBox, LB_GETTOPINDEX32, 0, 0);
1442
1443         case CB_GETLOCALE32:
1444                 return SendMessage32A( lphc->hWndLBox, LB_GETLOCALE32, 0, 0);
1445
1446         case CB_SETLOCALE32:
1447                 return SendMessage32A( lphc->hWndLBox, LB_SETLOCALE32, wParam, 0);
1448
1449         case CB_GETDROPPEDWIDTH32:
1450                 if( lphc->droppedWidth )
1451                     return lphc->droppedWidth;
1452                 return lphc->RectCombo.right - lphc->RectCombo.left -
1453                            (lphc->wState & CBF_EDIT) ? CBitOffset : 0;
1454
1455         case CB_SETDROPPEDWIDTH32:
1456                 if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
1457                     (INT32)wParam < 32768 ) lphc->droppedWidth = (INT32)wParam;
1458                 return CB_ERR;
1459
1460         case CB_GETDROPPEDCONTROLRECT16:
1461                 lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1462                 if( lParam )
1463                 {
1464                     RECT32      r;
1465                     CBGetDroppedControlRect32( lphc, &r );
1466                     CONV_RECT32TO16( &r, (LPRECT16)lParam );
1467                 }
1468                 return CB_OKAY;
1469
1470         case CB_GETDROPPEDCONTROLRECT32:
1471                 if( lParam ) CBGetDroppedControlRect32(lphc, (LPRECT32)lParam );
1472                 return CB_OKAY;
1473
1474         case CB_GETDROPPEDSTATE16:
1475         case CB_GETDROPPEDSTATE32:
1476                 return (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
1477
1478         case CB_DIR16:
1479                 lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1480                 /* fall through */
1481         case CB_DIR32:
1482                 return COMBO_Directory( lphc, (UINT32)wParam,
1483                                        (LPSTR)lParam, (message == CB_DIR32));
1484         case CB_SHOWDROPDOWN16:
1485         case CB_SHOWDROPDOWN32:
1486                 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
1487                     if( wParam )
1488                     {
1489                         if( !(lphc->wState & CBF_DROPPED) )
1490                             CBDropDown( lphc );
1491                     }
1492                     else
1493                         if( lphc->wState & CBF_DROPPED )
1494                             CBRollUp( lphc, FALSE, TRUE );
1495                 return TRUE;
1496
1497         case CB_GETCOUNT16:
1498         case CB_GETCOUNT32:
1499                 return SendMessage32A( lphc->hWndLBox, LB_GETCOUNT32, 0, 0);
1500
1501         case CB_GETCURSEL16:
1502         case CB_GETCURSEL32:
1503                 return SendMessage32A( lphc->hWndLBox, LB_GETCURSEL32, 0, 0);
1504
1505         case CB_SETCURSEL16:
1506                 wParam = (INT32)(INT16)wParam;
1507         case CB_SETCURSEL32:
1508                 return SendMessage32A( lphc->hWndLBox, LB_SETCURSEL32, wParam, 0);
1509
1510         case CB_GETLBTEXT16:
1511                 wParam = (INT32)(INT16)wParam;
1512                 lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
1513         case CB_GETLBTEXT32:
1514                 return SendMessage32A( lphc->hWndLBox, LB_GETTEXT32, wParam, lParam);
1515
1516         case CB_GETLBTEXTLEN16:
1517                 wParam = (INT32)(INT16)wParam;
1518         case CB_GETLBTEXTLEN32:
1519                 return SendMessage32A( lphc->hWndLBox, LB_GETTEXTLEN32, wParam, 0);
1520
1521         case CB_GETITEMDATA16:
1522                 wParam = (INT32)(INT16)wParam;
1523         case CB_GETITEMDATA32:
1524                 return SendMessage32A( lphc->hWndLBox, LB_GETITEMDATA32, wParam, 0);
1525
1526         case CB_SETITEMDATA16:
1527                 wParam = (INT32)(INT16)wParam;
1528         case CB_SETITEMDATA32:
1529                 return SendMessage32A( lphc->hWndLBox, LB_SETITEMDATA32, wParam, lParam);
1530
1531         case CB_GETEDITSEL16:
1532                 wParam = lParam = 0;   /* just in case */
1533         case CB_GETEDITSEL32:
1534                 if( lphc->wState & CBF_EDIT )
1535                 {
1536                     INT32       a, b;
1537
1538                     return SendMessage32A( lphc->hWndEdit, EM_GETSEL32,
1539                                            (wParam) ? wParam : (WPARAM32)&a,
1540                                            (lParam) ? lParam : (LPARAM)&b );
1541                 }
1542                 return CB_ERR;
1543
1544         case CB_SETEDITSEL16:
1545         case CB_SETEDITSEL32:
1546                 if( lphc->wState & CBF_EDIT )
1547                     return SendMessage32A( lphc->hWndEdit, EM_SETSEL32,
1548                           (INT32)(INT16)LOWORD(lParam), (INT32)(INT16)HIWORD(lParam) );
1549                 return CB_ERR;
1550
1551         case CB_SETEXTENDEDUI16:
1552         case CB_SETEXTENDEDUI32:
1553                 if( CB_GETTYPE(lphc) == CBS_SIMPLE ) return CB_ERR;
1554
1555                 if( wParam )
1556                     lphc->wState |= CBF_EUI;
1557                 else lphc->wState &= ~CBF_EUI;
1558                 return CB_OKAY;
1559
1560         case CB_GETEXTENDEDUI16:
1561         case CB_GETEXTENDEDUI32:
1562                 return (lphc->wState & CBF_EUI) ? TRUE : FALSE;
1563
1564         case (WM_USER + 0x1B):
1565                 dprintf_combo(stddeb,"Combo [%04x]: undocumented msg!\n", (HWND16)hwnd );
1566     }
1567     return DefWindowProc32A(hwnd, message, wParam, lParam);
1568   }
1569   return CB_ERR;
1570 }
1571