controls/button.c

   1 /* File: button.c -- Button type widgets
   2  *
   3  * Copyright (C) 1993 Johannes Ruscheinski
   4  * Copyright (C) 1993 David Metcalfe
   5  * Copyright (C) 1994 Alexandre Julliard
   6  */
   7
   8 #include <string.h>
   9 #include "win.h"
  10 #include "button.h"
  11 #include "winuser.h"
  12 #include "wine/winuser16.h"
  13 #include "tweak.h"
  14
  15 static void PaintGrayOnGray( HDC hDC,HFONT hFont,RECT *rc,
  16                              char *text, UINT format );
  17
  18 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action );
  19 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action );
  20 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action );
  21 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action );
  22 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action );
  23 static void BUTTON_CheckAutoRadioButton( WND *wndPtr );
  24
  25 #define MAX_BTN_TYPE  12
  26
  27 static const WORD maxCheckState[MAX_BTN_TYPE] =
  28 {
  29     BUTTON_UNCHECKED,   /* BS_PUSHBUTTON */
  30     BUTTON_UNCHECKED,   /* BS_DEFPUSHBUTTON */
  31     BUTTON_CHECKED,     /* BS_CHECKBOX */
  32     BUTTON_CHECKED,     /* BS_AUTOCHECKBOX */
  33     BUTTON_CHECKED,     /* BS_RADIOBUTTON */
  34     BUTTON_3STATE,      /* BS_3STATE */
  35     BUTTON_3STATE,      /* BS_AUTO3STATE */
  36     BUTTON_UNCHECKED,   /* BS_GROUPBOX */
  37     BUTTON_UNCHECKED,   /* BS_USERBUTTON */
  38     BUTTON_CHECKED,     /* BS_AUTORADIOBUTTON */
  39     BUTTON_UNCHECKED,   /* Not defined */
  40     BUTTON_UNCHECKED    /* BS_OWNERDRAW */
  41 };
  42
  43 typedef void (*pfPaint)( WND *wndPtr, HDC hdc, WORD action );
  44
  45 static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
  46 {
  47     PB_Paint,    /* BS_PUSHBUTTON */
  48     PB_Paint,    /* BS_DEFPUSHBUTTON */
  49     CB_Paint,    /* BS_CHECKBOX */
  50     CB_Paint,    /* BS_AUTOCHECKBOX */
  51     CB_Paint,    /* BS_RADIOBUTTON */
  52     CB_Paint,    /* BS_3STATE */
  53     CB_Paint,    /* BS_AUTO3STATE */
  54     GB_Paint,    /* BS_GROUPBOX */
  55     UB_Paint,    /* BS_USERBUTTON */
  56     CB_Paint,    /* BS_AUTORADIOBUTTON */
  57     NULL,        /* Not defined */
  58     OB_Paint     /* BS_OWNERDRAW */
  59 };
  60
  61 #define PAINT_BUTTON(wndPtr,style,action) \
  62      if (btnPaintFunc[style]) { \
  63          HDC hdc = GetDC( (wndPtr)->hwndSelf ); \
  64          (btnPaintFunc[style])(wndPtr,hdc,action); \
  65          ReleaseDC( (wndPtr)->hwndSelf, hdc ); }
  66
  67 #define BUTTON_SEND_CTLCOLOR(wndPtr,hdc) \
  68     SendMessageA( GetParent((wndPtr)->hwndSelf), WM_CTLCOLORBTN, \
  69                     (hdc), (wndPtr)->hwndSelf )
  70
  71 static HBITMAP hbitmapCheckBoxes = 0;
  72 static WORD checkBoxWidth = 0, checkBoxHeight = 0;
  73
  74
  75 /***********************************************************************
  76  *           ButtonWndProc_locked
  77  *
  78  * Called with window lock held.
  79  */
  80 static inline LRESULT WINAPI ButtonWndProc_locked(WND* wndPtr, UINT uMsg,
  81                                            WPARAM wParam, LPARAM lParam )
  82 {
  83     RECT rect;
  84     HWND        hWnd = wndPtr->hwndSelf;
  85     POINT pt;
  86     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
  87     LONG style = wndPtr->dwStyle & 0x0f;
  88     HANDLE oldHbitmap;
  89
  90     pt.x = LOWORD(lParam);
  91     pt.y = HIWORD(lParam);
  92
  93     switch (uMsg)
  94     {
  95     case WM_GETDLGCODE:
  96         switch(style)
  97         {
  98         case BS_PUSHBUTTON:      return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
  99         case BS_DEFPUSHBUTTON:   return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
 100         case BS_RADIOBUTTON:
 101         case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
 102         default:                 return DLGC_BUTTON;
 103         }
 104
 105     case WM_ENABLE:
 106         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 107         break;
 108
 109     case WM_CREATE:
 110         if (!hbitmapCheckBoxes)
 111         {
 112             BITMAP bmp;
 113             hbitmapCheckBoxes = LoadBitmapA(0, MAKEINTRESOURCEA(OBM_CHECKBOXES));
 114             GetObjectA( hbitmapCheckBoxes, sizeof(bmp), &bmp );
 115             checkBoxWidth  = bmp.bmWidth / 4;
 116             checkBoxHeight = bmp.bmHeight / 3;
 117         }
 118         if (style < 0L || style >= MAX_BTN_TYPE)
 119         {
 120             WIN_ReleaseWndPtr(wndPtr);
 121             return -1; /* abort */
 122         }
 123         infoPtr->state = BUTTON_UNCHECKED;
 124         infoPtr->hFont = 0;
 125         infoPtr->hImage = NULL;
 126         return 0;
 127
 128     case WM_ERASEBKGND:
 129         return 1;
 130
 131     case WM_PAINT:
 132         if (btnPaintFunc[style])
 133         {
 134             PAINTSTRUCT ps;
 135             HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
 136             SetBkMode( hdc, OPAQUE );
 137             (btnPaintFunc[style])( wndPtr, hdc, ODA_DRAWENTIRE );
 138             if( !wParam ) EndPaint( hWnd, &ps );
 139         }
 140         break;
 141
 142     case WM_LBUTTONDOWN:
 143     case WM_LBUTTONDBLCLK:
 144         SendMessageA( hWnd, BM_SETSTATE, TRUE, 0 );
 145         SetFocus( hWnd );
 146         SetCapture( hWnd );
 147         break;
 148
 149     case WM_LBUTTONUP:
 150         ReleaseCapture();
 151         if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
 152         SendMessageA( hWnd, BM_SETSTATE, FALSE, 0 );
 153         GetClientRect( hWnd, &rect );
 154         if (PtInRect( &rect, pt ))
 155         {
 156             switch(style)
 157             {
 158             case BS_AUTOCHECKBOX:
 159                 SendMessageA( hWnd, BM_SETCHECK,
 160                                 !(infoPtr->state & BUTTON_CHECKED), 0 );
 161                 break;
 162             case BS_AUTORADIOBUTTON:
 163                 SendMessageA( hWnd, BM_SETCHECK, TRUE, 0 );
 164                 break;
 165             case BS_AUTO3STATE:
 166                 SendMessageA( hWnd, BM_SETCHECK,
 167                                 (infoPtr->state & BUTTON_3STATE) ? 0 :
 168                                 ((infoPtr->state & 3) + 1), 0 );
 169                 break;
 170             }
 171             SendMessageA( GetParent(hWnd), WM_COMMAND,
 172                             MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
 173         }
 174         break;
 175
 176     case WM_MOUSEMOVE:
 177         if (GetCapture() == hWnd)
 178         {
 179             GetClientRect( hWnd, &rect );
 180             SendMessageA( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
 181         }
 182         break;
 183
 184     case WM_NCHITTEST:
 185         if(style == BS_GROUPBOX) return HTTRANSPARENT;
 186         return DefWindowProcA( hWnd, uMsg, wParam, lParam );
 187
 188     case WM_SETTEXT:
 189         DEFWND_SetText( wndPtr, (LPCSTR)lParam );
 190         if( wndPtr->dwStyle & WS_VISIBLE )
 191             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 192         return 0;
 193
 194     case WM_SETFONT:
 195         infoPtr->hFont = (HFONT16)wParam;
 196         if (lParam && (wndPtr->dwStyle & WS_VISIBLE))
 197             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 198         break;
 199
 200     case WM_GETFONT:
 201         return infoPtr->hFont;
 202
 203     case WM_SETFOCUS:
 204         infoPtr->state |= BUTTON_HASFOCUS;
 205         if (style == BS_AUTORADIOBUTTON)
 206             SendMessageA( hWnd, BM_SETCHECK, 1, 0 );
 207         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 208         break;
 209
 210     case WM_KILLFOCUS:
 211         infoPtr->state &= ~BUTTON_HASFOCUS;
 212         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 213         InvalidateRect( hWnd, NULL, TRUE );
 214         break;
 215
 216     case WM_SYSCOLORCHANGE:
 217         InvalidateRect( hWnd, NULL, FALSE );
 218         break;
 219
 220     case BM_SETSTYLE16:
 221     case BM_SETSTYLE:
 222         if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
 223         wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0)
 224                            | (wParam & 0x0000000f);
 225         style = wndPtr->dwStyle & 0x0000000f;
 226         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 227         break;
 228
 229     case BM_SETIMAGE:
 230         oldHbitmap = infoPtr->hImage;
 231         if(wndPtr->dwStyle & BS_BITMAP)
 232             infoPtr->hImage = (HANDLE) lParam;
 233         return oldHbitmap;
 234
 235     case BM_GETIMAGE:
 236         return infoPtr->hImage;
 237
 238     case BM_GETCHECK16:
 239     case BM_GETCHECK:
 240         return infoPtr->state & 3;
 241
 242     case BM_SETCHECK16:
 243     case BM_SETCHECK:
 244         if (wParam > maxCheckState[style]) wParam = maxCheckState[style];
 245         if ((infoPtr->state & 3) != wParam)
 246         {
 247             if ((style == BS_RADIOBUTTON) || (style == BS_AUTORADIOBUTTON))
 248             {
 249                 if (wParam)
 250                     wndPtr->dwStyle |= WS_TABSTOP;
 251                 else
 252                     wndPtr->dwStyle &= ~WS_TABSTOP;
 253             }
 254             infoPtr->state = (infoPtr->state & ~3) | wParam;
 255             PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 256         }
 257         if ((style == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED))
 258             BUTTON_CheckAutoRadioButton( wndPtr );
 259         break;
 260
 261     case BM_GETSTATE16:
 262     case BM_GETSTATE:
 263         return infoPtr->state;
 264
 265     case BM_SETSTATE16:
 266     case BM_SETSTATE:
 267         if (wParam)
 268         {
 269             if (infoPtr->state & BUTTON_HIGHLIGHTED) break;
 270             infoPtr->state |= BUTTON_HIGHLIGHTED;
 271         }
 272         else
 273         {
 274             if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
 275             infoPtr->state &= ~BUTTON_HIGHLIGHTED;
 276         }
 277         PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 278         break;
 279
 280     default:
 281         return DefWindowProcA(hWnd, uMsg, wParam, lParam);
 282     }
 283     return 0;
 284 }
 285
 286 /***********************************************************************
 287  *           ButtonWndProc
 288  * The button window procedure. This is just a wrapper which locks
 289  * the passed HWND and calls the real window procedure (with a WND*
 290  * pointer pointing to the locked windowstructure).
 291  */
 292 LRESULT WINAPI ButtonWndProc( HWND hWnd, UINT uMsg,
 293                               WPARAM wParam, LPARAM lParam )
 294 {
 295     LRESULT res;
 296     WND *wndPtr = WIN_FindWndPtr(hWnd);
 297
 298     res = ButtonWndProc_locked(wndPtr,uMsg,wParam,lParam);
 299
 300     WIN_ReleaseWndPtr(wndPtr);
 301     return res;
 302 }
 303
 304 /**********************************************************************
 305  *       Push Button Functions
 306  */
 307
 308 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action )
 309 {
 310     RECT rc;
 311     HPEN hOldPen;
 312     HBRUSH hOldBrush;
 313     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 314     int xBorderOffset, yBorderOffset;
 315     xBorderOffset = yBorderOffset = 0;
 316
 317     GetClientRect( wndPtr->hwndSelf, &rc );
 318
 319       /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
 320     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 321     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 322     hOldPen = (HPEN)SelectObject(hDC, GetSysColorPen(COLOR_WINDOWFRAME));
 323     hOldBrush =(HBRUSH)SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
 324     SetBkMode(hDC, TRANSPARENT);
 325     Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 326 /*    if (action == ODA_DRAWENTIRE)*/
 327     {
 328         SetPixel( hDC, rc.left, rc.top, GetSysColor(COLOR_WINDOW) );
 329         SetPixel( hDC, rc.left, rc.bottom-1, GetSysColor(COLOR_WINDOW) );
 330         SetPixel( hDC, rc.right-1, rc.top, GetSysColor(COLOR_WINDOW) );
 331         SetPixel( hDC, rc.right-1, rc.bottom-1, GetSysColor(COLOR_WINDOW));
 332     }
 333     InflateRect( &rc, -1, -1 );
 334
 335     if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON)
 336     {
 337         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 338         InflateRect( &rc, -1, -1 );
 339     }
 340
 341     if (infoPtr->state & BUTTON_HIGHLIGHTED)
 342     {
 343         /* draw button shadow: */
 344         SelectObject(hDC, GetSysColorBrush(COLOR_BTNSHADOW));
 345         PatBlt(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY );
 346         PatBlt(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY );
 347         rc.left += 2;  /* To position the text down and right */
 348         rc.top  += 2;
 349     } else {
 350         rc.right++, rc.bottom++;
 351         DrawEdge( hDC, &rc, EDGE_RAISED, BF_RECT );
 352
 353         /* To place de bitmap correctly */
 354         xBorderOffset += GetSystemMetrics(SM_CXEDGE);
 355         yBorderOffset += GetSystemMetrics(SM_CYEDGE);
 356
 357         rc.right--, rc.bottom--;
 358     }
 359
 360     /* draw button label, if any: */
 361     if (wndPtr->text && wndPtr->text[0])
 362     {
 363         LOGBRUSH lb;
 364         GetObjectA( GetSysColorBrush(COLOR_BTNFACE), sizeof(lb), &lb );
 365         if (wndPtr->dwStyle & WS_DISABLED &&
 366             GetSysColor(COLOR_GRAYTEXT)==lb.lbColor)
 367             /* don't write gray text on gray background */
 368             PaintGrayOnGray( hDC,infoPtr->hFont,&rc,wndPtr->text,
 369                                DT_CENTER | DT_VCENTER );
 370         else
 371         {
 372             SetTextColor( hDC, (wndPtr->dwStyle & WS_DISABLED) ?
 373                                  GetSysColor(COLOR_GRAYTEXT) :
 374                                  GetSysColor(COLOR_BTNTEXT) );
 375             DrawTextA( hDC, wndPtr->text, -1, &rc,
 376                          DT_SINGLELINE | DT_CENTER | DT_VCENTER );
 377             /* do we have the focus? */
 378             if (infoPtr->state & BUTTON_HASFOCUS)
 379             {
 380                 RECT r = { 0, 0, 0, 0 };
 381                 INT xdelta, ydelta;
 382
 383                 DrawTextA( hDC, wndPtr->text, -1, &r,
 384                              DT_SINGLELINE | DT_CALCRECT );
 385                 xdelta = ((rc.right - rc.left) - (r.right - r.left) - 1) / 2;
 386                 ydelta = ((rc.bottom - rc.top) - (r.bottom - r.top) - 1) / 2;
 387                 if (xdelta < 0) xdelta = 0;
 388                 if (ydelta < 0) ydelta = 0;
 389                 InflateRect( &rc, -xdelta, -ydelta );
 390                 DrawFocusRect( hDC, &rc );
 391             }
 392         }
 393     }
 394
 395     if((wndPtr->dwStyle & BS_BITMAP) && (infoPtr->hImage != NULL))
 396     {
 397         BITMAP bm;
 398         HDC hdcMem;
 399         int yOffset, xOffset, imageWidth, imageHeight;
 400
 401         GetObjectA (infoPtr->hImage, sizeof(BITMAP), &bm);
 402
 403         /* Center the bitmap */
 404         xOffset = (((rc.right - rc.left) - 2*xBorderOffset) - bm.bmWidth ) / 2;
 405         yOffset = (((rc.bottom - rc.top) - 2*yBorderOffset) - bm.bmHeight ) / 2;
 406
 407         imageWidth = bm.bmWidth;
 408         imageHeight = bm.bmHeight;
 409
 410         /* If the image is to big for the button */
 411         if (xOffset < 0)
 412         {
 413             imageWidth = rc.right - rc.left - 2*xBorderOffset -1;
 414             xOffset = xBorderOffset;
 415         }
 416
 417         if (yOffset < 0)
 418         {
 419             imageHeight = rc.bottom - rc.top - 2*yBorderOffset -1;
 420             yOffset = yBorderOffset;
 421         }
 422
 423         /* Let minimum 1 space from border */
 424         xOffset++, yOffset++;
 425
 426         hdcMem = CreateCompatibleDC (hDC);
 427         SelectObject (hdcMem, (HBITMAP)infoPtr->hImage);
 428         BitBlt(hDC, rc.left + xOffset,
 429                rc.top + yOffset,
 430                imageWidth, imageHeight,
 431                hdcMem, 0, 0, SRCCOPY);
 432
 433         DeleteDC (hdcMem);
 434     }
 435
 436     SelectObject( hDC, hOldPen );
 437     SelectObject( hDC, hOldBrush );
 438 }
 439
 440
 441 /**********************************************************************
 442  *   PB_Paint & CB_Paint sub function                        [internal]
 443  *   Paint text using a raster brush to avoid gray text on gray
 444  *   background. 'format' can be a combination of DT_CENTER and
 445  *   DT_VCENTER to use this function in both PB_PAINT and
 446  *   CB_PAINT.   - Dirk Thierbach
 447  *
 448  *   FIXME: This and TEXT_GrayString should be eventually combined,
 449  *   so calling one common function from PB_Paint, CB_Paint and
 450  *   TEXT_GrayString will be enough. Also note that this
 451  *   function ignores the CACHE_GetPattern funcs.
 452  */
 453
 454 void PaintGrayOnGray(HDC hDC,HFONT hFont,RECT *rc,char *text,
 455                         UINT format)
 456 {
 457 /*  This is the standard gray on gray pattern:
 458     static const WORD Pattern[] = {0xAA,0x55,0xAA,0x55,0xAA,0x55,0xAA,0x55};
 459 */
 460 /*  This pattern gives better readability with X Fonts.
 461     FIXME: Maybe the user should be allowed to decide which he wants. */
 462     static const WORD Pattern[] = {0x55,0xFF,0xAA,0xFF,0x55,0xFF,0xAA,0xFF};
 463
 464     HBITMAP hbm  = CreateBitmap( 8, 8, 1, 1, Pattern );
 465     HDC hdcMem = CreateCompatibleDC(hDC);
 466     HBITMAP hbmMem;
 467     HBRUSH hBr;
 468     RECT rect,rc2;
 469
 470     rect=*rc;
 471     DrawTextA( hDC, text, -1, &rect, DT_SINGLELINE | DT_CALCRECT);
 472     /* now text width and height are in rect.right and rect.bottom */
 473     rc2=rect;
 474     rect.left = rect.top = 0; /* drawing pos in hdcMem */
 475     if (format & DT_CENTER) rect.left=(rc->right-rect.right)/2;
 476     if (format & DT_VCENTER) rect.top=(rc->bottom-rect.bottom)/2;
 477     hbmMem = CreateCompatibleBitmap( hDC,rect.right,rect.bottom );
 478     SelectObject( hdcMem, hbmMem);
 479     PatBlt( hdcMem,0,0,rect.right,rect.bottom,WHITENESS);
 480       /* will be overwritten by DrawText, but just in case */
 481     if (hFont) SelectObject( hdcMem, hFont);
 482     DrawTextA( hdcMem, text, -1, &rc2, DT_SINGLELINE);
 483       /* After draw: foreground = 0 bits, background = 1 bits */
 484     hBr = SelectObject( hdcMem, CreatePatternBrush(hbm) );
 485     DeleteObject( hbm );
 486     PatBlt( hdcMem,0,0,rect.right,rect.bottom,0xAF0229);
 487       /* only keep the foreground bits where pattern is 1 */
 488     DeleteObject( SelectObject( hdcMem,hBr) );
 489     BitBlt(hDC,rect.left,rect.top,rect.right,rect.bottom,hdcMem,0,0,SRCAND);
 490       /* keep the background of the dest */
 491     DeleteDC( hdcMem);
 492     DeleteObject( hbmMem );
 493 }
 494
 495
 496 /**********************************************************************
 497  *       Check Box & Radio Button Functions
 498  */
 499
 500 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action )
 501 {
 502     RECT rbox, rtext, client;
 503     HBRUSH hBrush;
 504     int textlen, delta;
 505     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 506
 507     textlen = 0;
 508     GetClientRect(wndPtr->hwndSelf, &client);
 509     rbox = rtext = client;
 510
 511     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 512
 513     /* Something is still not right, checkboxes (and edit controls)
 514      * in wsping32 have white backgrounds instead of dark grey.
 515      * BUTTON_SEND_CTLCOLOR() is even worse since it returns 0 in this
 516      * particular case and the background is not painted at all.
 517      */
 518
 519     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 520
 521     if (wndPtr->dwStyle & BS_LEFTTEXT)
 522     {
 523         /* magic +4 is what CTL3D expects */
 524
 525         rtext.right -= checkBoxWidth + 4;
 526         rbox.left = rbox.right - checkBoxWidth;
 527     }
 528     else
 529     {
 530         rtext.left += checkBoxWidth + 4;
 531         rbox.right = checkBoxWidth;
 532     }
 533
 534       /* Draw the check-box bitmap */
 535
 536     if (wndPtr->text) textlen = strlen( wndPtr->text );
 537     if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
 538     {
 539         HDC hMemDC = CreateCompatibleDC( hDC );
 540         int x = 0, y = 0;
 541         delta = (rbox.bottom - rbox.top - checkBoxHeight) >> 1;
 542
 543         if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
 544         else FillRect( hDC, &client, hBrush );
 545
 546         if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth;
 547         if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth;
 548         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 549             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight;
 550         else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight;
 551
 552         SelectObject( hMemDC, hbitmapCheckBoxes );
 553         BitBlt( hDC, rbox.left, rbox.top + delta, checkBoxWidth,
 554                   checkBoxHeight, hMemDC, x, y, SRCCOPY );
 555         DeleteDC( hMemDC );
 556
 557         if( textlen && action != ODA_SELECT )
 558         {
 559           if (wndPtr->dwStyle & WS_DISABLED &&
 560               GetSysColor(COLOR_GRAYTEXT)==GetBkColor(hDC)) {
 561             /* don't write gray text on gray background */
 562             PaintGrayOnGray( hDC, infoPtr->hFont, &rtext, wndPtr->text,
 563                              DT_VCENTER);
 564           } else {
 565             if (wndPtr->dwStyle & WS_DISABLED)
 566                 SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 567             DrawTextA( hDC, wndPtr->text, textlen, &rtext,
 568                          DT_SINGLELINE | DT_VCENTER );
 569             textlen = 0; /* skip DrawText() below */
 570           }
 571         }
 572     }
 573
 574     if ((action == ODA_FOCUS) ||
 575         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 576     {
 577         /* again, this is what CTL3D expects */
 578
 579         SetRectEmpty(&rbox);
 580         if( textlen )
 581             DrawTextA( hDC, wndPtr->text, textlen, &rbox,
 582                          DT_SINGLELINE | DT_CALCRECT );
 583         textlen = rbox.bottom - rbox.top;
 584         delta = ((rtext.bottom - rtext.top) - textlen)/2;
 585         rbox.bottom = (rbox.top = rtext.top + delta - 1) + textlen + 2;
 586         textlen = rbox.right - rbox.left;
 587         rbox.right = (rbox.left += --rtext.left) + textlen + 2;
 588         IntersectRect(&rbox, &rbox, &rtext);
 589         DrawFocusRect( hDC, &rbox );
 590     }
 591 }
 592
 593
 594 /**********************************************************************
 595  *       BUTTON_CheckAutoRadioButton
 596  *
 597  * wndPtr is checked, uncheck every other auto radio button in group
 598  */
 599 static void BUTTON_CheckAutoRadioButton( WND *wndPtr )
 600 {
 601     HWND parent, sibling, start;
 602     if (!(wndPtr->dwStyle & WS_CHILD)) return;
 603     parent = wndPtr->parent->hwndSelf;
 604     /* assure that starting control is not disabled or invisible */
 605     start = sibling = GetNextDlgGroupItem( parent, wndPtr->hwndSelf, TRUE );
 606     do
 607     {
 608         WND *tmpWnd;
 609         if (!sibling) break;
 610         tmpWnd = WIN_FindWndPtr(sibling);
 611         if ((wndPtr->hwndSelf != sibling) &&
 612             ((tmpWnd->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
 613             SendMessageA( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 );
 614         sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
 615         WIN_ReleaseWndPtr(tmpWnd);
 616     } while (sibling != start);
 617 }
 618
 619
 620 /**********************************************************************
 621  *       Group Box Functions
 622  */
 623
 624 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action )
 625 {
 626     RECT rc, rcFrame;
 627     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 628
 629     if (action != ODA_DRAWENTIRE) return;
 630
 631     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 632
 633     GetClientRect( wndPtr->hwndSelf, &rc);
 634     if (TWEAK_WineLook == WIN31_LOOK) {
 635         HPEN hPrevPen = SelectObject( hDC,
 636                                           GetSysColorPen(COLOR_WINDOWFRAME));
 637         HBRUSH hPrevBrush = SelectObject( hDC,
 638                                               GetStockObject(NULL_BRUSH) );
 639
 640         Rectangle( hDC, rc.left, rc.top + 2, rc.right - 1, rc.bottom - 1 );
 641         SelectObject( hDC, hPrevBrush );
 642         SelectObject( hDC, hPrevPen );
 643     } else {
 644         TEXTMETRICA tm;
 645         rcFrame = rc;
 646
 647         if (infoPtr->hFont)
 648             SelectObject (hDC, infoPtr->hFont);
 649         GetTextMetricsA (hDC, &tm);
 650         rcFrame.top += (tm.tmHeight / 2) - 1;
 651         DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT);
 652     }
 653
 654     if (wndPtr->text)
 655     {
 656         if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 657         if (wndPtr->dwStyle & WS_DISABLED)
 658             SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 659         rc.left += 10;
 660         DrawTextA( hDC, wndPtr->text, -1, &rc, DT_SINGLELINE | DT_NOCLIP );
 661     }
 662 }
 663
 664
 665 /**********************************************************************
 666  *       User Button Functions
 667  */
 668
 669 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action )
 670 {
 671     RECT rc;
 672     HBRUSH hBrush;
 673     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 674
 675     if (action == ODA_SELECT) return;
 676
 677     GetClientRect( wndPtr->hwndSelf, &rc);
 678
 679     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 680     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 681
 682     FillRect( hDC, &rc, hBrush );
 683     if ((action == ODA_FOCUS) ||
 684         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 685         DrawFocusRect( hDC, &rc );
 686 }
 687
 688
 689 /**********************************************************************
 690  *       Ownerdrawn Button Functions
 691  */
 692
 693 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action )
 694 {
 695     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 696     DRAWITEMSTRUCT dis;
 697
 698     dis.CtlType    = ODT_BUTTON;
 699     dis.CtlID      = wndPtr->wIDmenu;
 700     dis.itemID     = 0;
 701     dis.itemAction = action;
 702     dis.itemState  = ((infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
 703                      ((infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
 704                      ((wndPtr->dwStyle & WS_DISABLED) ? ODS_DISABLED : 0);
 705     dis.hwndItem   = wndPtr->hwndSelf;
 706     dis.hDC        = hDC;
 707     dis.itemData   = 0;
 708     GetClientRect( wndPtr->hwndSelf, &dis.rcItem );
 709     SendMessageA( GetParent(wndPtr->hwndSelf), WM_DRAWITEM,
 710                     wndPtr->wIDmenu, (LPARAM)&dis );
 711 }
 712