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