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