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 static void BUTTON_DrawPushButton( WND *wndPtr, HDC hDC, WORD action, BOOL pushedState);
  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             return -1; /* abort */
 120         infoPtr->state = BUTTON_UNCHECKED;
 121         infoPtr->hFont = 0;
 122         infoPtr->hImage = 0;
 123         return 0;
 124
 125     case WM_ERASEBKGND:
 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_KEYDOWN:
 140         if (wParam == VK_SPACE)
 141         {
 142             SendMessageA( hWnd, BM_SETSTATE, TRUE, 0 );
 143             infoPtr->state |= BUTTON_BTNPRESSED;
 144         }
 145         break;
 146
 147     case WM_LBUTTONDBLCLK:
 148         if(wndPtr->dwStyle & BS_NOTIFY ||
 149                 style==BS_RADIOBUTTON ||
 150                 style==BS_USERBUTTON ||
 151                 style==BS_OWNERDRAW) {
 152             SendMessageA( GetParent(hWnd), WM_COMMAND,
 153                     MAKEWPARAM( wndPtr->wIDmenu, BN_DOUBLECLICKED ), hWnd);
 154             break;
 155         }
 156         /* fall through */
 157     case WM_LBUTTONDOWN:
 158         SetCapture( hWnd );
 159         SetFocus( hWnd );
 160         SendMessageA( hWnd, BM_SETSTATE, TRUE, 0 );
 161         infoPtr->state |= BUTTON_BTNPRESSED;
 162         break;
 163
 164     case WM_KEYUP:
 165         if (wParam != VK_SPACE)
 166             break;
 167         /* fall through */
 168     case WM_LBUTTONUP:
 169         if (!(infoPtr->state & BUTTON_BTNPRESSED)) break;
 170         infoPtr->state &= BUTTON_NSTATES;
 171         if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) {
 172             ReleaseCapture();
 173             break;
 174         }
 175         SendMessageA( hWnd, BM_SETSTATE, FALSE, 0 );
 176         ReleaseCapture();
 177         GetClientRect( hWnd, &rect );
 178         if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
 179         {
 180             switch(style)
 181             {
 182             case BS_AUTOCHECKBOX:
 183                 SendMessageA( hWnd, BM_SETCHECK,
 184                                 !(infoPtr->state & BUTTON_CHECKED), 0 );
 185                 break;
 186             case BS_AUTORADIOBUTTON:
 187                 SendMessageA( hWnd, BM_SETCHECK, TRUE, 0 );
 188                 break;
 189             case BS_AUTO3STATE:
 190                 SendMessageA( hWnd, BM_SETCHECK,
 191                                 (infoPtr->state & BUTTON_3STATE) ? 0 :
 192                                 ((infoPtr->state & 3) + 1), 0 );
 193                 break;
 194             }
 195             SendMessageA( GetParent(hWnd), WM_COMMAND,
 196                             MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
 197         }
 198         break;
 199
 200     case WM_CAPTURECHANGED:
 201         if (infoPtr->state & BUTTON_BTNPRESSED) {
 202             infoPtr->state &= BUTTON_NSTATES;
 203             if (infoPtr->state & BUTTON_HIGHLIGHTED)
 204                 SendMessageA( hWnd, BM_SETSTATE, FALSE, 0 );
 205         }
 206         break;
 207
 208     case WM_MOUSEMOVE:
 209         if (GetCapture() == hWnd)
 210         {
 211             GetClientRect( hWnd, &rect );
 212             SendMessageA( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
 213         }
 214         break;
 215
 216     case WM_NCHITTEST:
 217         if(style == BS_GROUPBOX) return HTTRANSPARENT;
 218         return DefWindowProcA( hWnd, uMsg, wParam, lParam );
 219
 220     case WM_SETTEXT:
 221         DEFWND_SetText( wndPtr, (LPCSTR)lParam );
 222         if( wndPtr->dwStyle & WS_VISIBLE )
 223             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 224         return 0;
 225
 226     case WM_SETFONT:
 227         infoPtr->hFont = (HFONT16)wParam;
 228         if (lParam && (wndPtr->dwStyle & WS_VISIBLE))
 229             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 230         break;
 231
 232     case WM_GETFONT:
 233         return infoPtr->hFont;
 234
 235     case WM_SETFOCUS:
 236         if ((style == BS_AUTORADIOBUTTON) && (GetCapture() != hWnd) &&
 237             !(SendMessageA(hWnd, BM_GETCHECK, 0, 0) & BST_CHECKED))
 238         {
 239             /* The notification is sent when the button (BS_AUTORADIOBUTTON)
 240                is unckecked and the focus was not given by a mouse click. */
 241             SendMessageA( hWnd, BM_SETCHECK, TRUE, 0 );
 242             SendMessageA( GetParent(hWnd), WM_COMMAND,
 243                           MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
 244         }
 245         infoPtr->state |= BUTTON_HASFOCUS;
 246         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 247         break;
 248
 249     case WM_KILLFOCUS:
 250         infoPtr->state &= ~BUTTON_HASFOCUS;
 251         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 252         InvalidateRect( hWnd, NULL, TRUE );
 253         break;
 254
 255     case WM_SYSCOLORCHANGE:
 256         InvalidateRect( hWnd, NULL, FALSE );
 257         break;
 258
 259     case BM_SETSTYLE16:
 260     case BM_SETSTYLE:
 261         if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
 262         wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0)
 263                            | (wParam & 0x0000000f);
 264         style = wndPtr->dwStyle & 0x0000000f;
 265         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 266         break;
 267
 268     case BM_SETIMAGE:
 269         oldHbitmap = infoPtr->hImage;
 270         if ((wndPtr->dwStyle & BS_BITMAP) || (wndPtr->dwStyle & BS_ICON))
 271             infoPtr->hImage = (HANDLE) lParam;
 272         return oldHbitmap;
 273
 274     case BM_GETIMAGE:
 275         if (wParam == IMAGE_BITMAP)
 276             return (HBITMAP)infoPtr->hImage;
 277         else if (wParam == IMAGE_ICON)
 278             return (HICON)infoPtr->hImage;
 279         else
 280             return (HICON)0;
 281
 282     case BM_GETCHECK16:
 283     case BM_GETCHECK:
 284         return infoPtr->state & 3;
 285
 286     case BM_SETCHECK16:
 287     case BM_SETCHECK:
 288         if (wParam > maxCheckState[style]) wParam = maxCheckState[style];
 289         if ((infoPtr->state & 3) != wParam)
 290         {
 291             if ((style == BS_RADIOBUTTON) || (style == BS_AUTORADIOBUTTON))
 292             {
 293                 if (wParam)
 294                     wndPtr->dwStyle |= WS_TABSTOP;
 295                 else
 296                     wndPtr->dwStyle &= ~WS_TABSTOP;
 297             }
 298             infoPtr->state = (infoPtr->state & ~3) | wParam;
 299             PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 300         }
 301         if ((style == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED))
 302             BUTTON_CheckAutoRadioButton( wndPtr );
 303         break;
 304
 305     case BM_GETSTATE16:
 306     case BM_GETSTATE:
 307         return infoPtr->state;
 308
 309     case BM_SETSTATE16:
 310     case BM_SETSTATE:
 311         if (wParam)
 312         {
 313             if (infoPtr->state & BUTTON_HIGHLIGHTED) break;
 314             infoPtr->state |= BUTTON_HIGHLIGHTED;
 315         }
 316         else
 317         {
 318             if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
 319             infoPtr->state &= ~BUTTON_HIGHLIGHTED;
 320         }
 321         PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 322         break;
 323
 324     default:
 325         return DefWindowProcA(hWnd, uMsg, wParam, lParam);
 326     }
 327     return 0;
 328 }
 329
 330 /***********************************************************************
 331  *           ButtonWndProc
 332  * The button window procedure. This is just a wrapper which locks
 333  * the passed HWND and calls the real window procedure (with a WND*
 334  * pointer pointing to the locked windowstructure).
 335  */
 336 LRESULT WINAPI ButtonWndProc( HWND hWnd, UINT uMsg,
 337                               WPARAM wParam, LPARAM lParam )
 338 {
 339     LRESULT res;
 340     WND *wndPtr = WIN_FindWndPtr(hWnd);
 341
 342     res = ButtonWndProc_locked(wndPtr,uMsg,wParam,lParam);
 343
 344     WIN_ReleaseWndPtr(wndPtr);
 345     return res;
 346 }
 347
 348 /**********************************************************************
 349  *       Push Button Functions
 350  */
 351 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action )
 352 {
 353     BUTTONINFO *infoPtr      = (BUTTONINFO *)wndPtr->wExtra;
 354     BOOL        bHighLighted = (infoPtr->state & BUTTON_HIGHLIGHTED);
 355
 356     /*
 357      * Delegate this to the more generic pushbutton painting
 358      * method.
 359      */
 360     BUTTON_DrawPushButton(wndPtr,
 361                           hDC,
 362                           action,
 363                           bHighLighted);
 364 }
 365
 366 /**********************************************************************
 367  * This method will actually do the drawing of the pushbutton
 368  * depending on it's state and the pushedState parameter.
 369  */
 370 static void BUTTON_DrawPushButton(
 371   WND* wndPtr,
 372   HDC  hDC,
 373   WORD action,
 374   BOOL pushedState )
 375 {
 376     RECT rc, focus_rect;
 377     HPEN hOldPen;
 378     HBRUSH hOldBrush;
 379     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 380     int xBorderOffset, yBorderOffset;
 381     xBorderOffset = yBorderOffset = 0;
 382
 383     GetClientRect( wndPtr->hwndSelf, &rc );
 384
 385       /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
 386     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 387     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 388     hOldPen = (HPEN)SelectObject(hDC, GetSysColorPen(COLOR_WINDOWFRAME));
 389     hOldBrush =(HBRUSH)SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
 390     SetBkMode(hDC, TRANSPARENT);
 391
 392     if ( TWEAK_WineLook == WIN31_LOOK)
 393     {
 394         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 395
 396         SetPixel( hDC, rc.left, rc.top, GetSysColor(COLOR_WINDOW) );
 397         SetPixel( hDC, rc.left, rc.bottom-1, GetSysColor(COLOR_WINDOW) );
 398         SetPixel( hDC, rc.right-1, rc.top, GetSysColor(COLOR_WINDOW) );
 399         SetPixel( hDC, rc.right-1, rc.bottom-1, GetSysColor(COLOR_WINDOW));
 400         InflateRect( &rc, -1, -1 );
 401     }
 402
 403     if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON)
 404     {
 405         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 406         InflateRect( &rc, -1, -1 );
 407     }
 408
 409     if (TWEAK_WineLook == WIN31_LOOK)
 410     {
 411         if (pushedState)
 412         {
 413             /* draw button shadow: */
 414             SelectObject(hDC, GetSysColorBrush(COLOR_BTNSHADOW));
 415             PatBlt(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY );
 416             PatBlt(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY );
 417             rc.left += 2;  /* To position the text down and right */
 418             rc.top  += 2;
 419         } else {
 420            rc.right++, rc.bottom++;
 421            DrawEdge( hDC, &rc, EDGE_RAISED, BF_RECT );
 422
 423            /* To place de bitmap correctly */
 424            xBorderOffset += GetSystemMetrics(SM_CXEDGE);
 425            yBorderOffset += GetSystemMetrics(SM_CYEDGE);
 426
 427            rc.right--, rc.bottom--;
 428         }
 429     }
 430     else
 431     {
 432         UINT uState = DFCS_BUTTONPUSH;
 433
 434         if (pushedState)
 435         {
 436             if ( (wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON )
 437                 uState |= DFCS_FLAT;
 438             else
 439                 uState |= DFCS_PUSHED;
 440         }
 441
 442         DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );
 443         InflateRect( &rc, -2, -2 );
 444
 445         focus_rect = rc;
 446
 447         if (pushedState)
 448         {
 449             rc.left += 2;  /* To position the text down and right */
 450             rc.top  += 2;
 451         }
 452     }
 453
 454     /* draw button label, if any:
 455      *
 456      * In win9x we don't show text if there is a bitmap or icon.
 457      * I don't know about win31 so I leave it as it was for win31.
 458      * Dennis Björklund 12 Jul, 99
 459      */
 460     if ( wndPtr->text && wndPtr->text[0]
 461          && (TWEAK_WineLook == WIN31_LOOK || !(wndPtr->dwStyle & (BS_ICON|BS_BITMAP))) )
 462     {
 463         LOGBRUSH lb;
 464         GetObjectA( GetSysColorBrush(COLOR_BTNFACE), sizeof(lb), &lb );
 465         if (wndPtr->dwStyle & WS_DISABLED &&
 466             GetSysColor(COLOR_GRAYTEXT)==lb.lbColor)
 467             /* don't write gray text on gray background */
 468             PaintGrayOnGray( hDC,infoPtr->hFont,&rc,wndPtr->text,
 469                                DT_CENTER | DT_VCENTER );
 470         else
 471         {
 472             SetTextColor( hDC, (wndPtr->dwStyle & WS_DISABLED) ?
 473                                  GetSysColor(COLOR_GRAYTEXT) :
 474                                  GetSysColor(COLOR_BTNTEXT) );
 475             DrawTextA( hDC, wndPtr->text, -1, &rc,
 476                          DT_SINGLELINE | DT_CENTER | DT_VCENTER );
 477             /* do we have the focus?
 478              * Win9x draws focus last with a size prop. to the button
 479              */
 480             if (TWEAK_WineLook == WIN31_LOOK
 481                 && infoPtr->state & BUTTON_HASFOCUS)
 482             {
 483                 RECT r = { 0, 0, 0, 0 };
 484                 INT xdelta, ydelta;
 485
 486                 DrawTextA( hDC, wndPtr->text, -1, &r,
 487                              DT_SINGLELINE | DT_CALCRECT );
 488                 xdelta = ((rc.right - rc.left) - (r.right - r.left) - 1) / 2;
 489                 ydelta = ((rc.bottom - rc.top) - (r.bottom - r.top) - 1) / 2;
 490                 if (xdelta < 0) xdelta = 0;
 491                 if (ydelta < 0) ydelta = 0;
 492                 InflateRect( &rc, -xdelta, -ydelta );
 493                 DrawFocusRect( hDC, &rc );
 494             }
 495         }
 496     }
 497     if ( ((wndPtr->dwStyle & BS_ICON) || (wndPtr->dwStyle & BS_BITMAP) ) &&
 498          (infoPtr->hImage != 0) )
 499     {
 500         int yOffset, xOffset;
 501         int imageWidth, imageHeight;
 502
 503         /*
 504          * We extract the size of the image from the handle.
 505          */
 506         if (wndPtr->dwStyle & BS_ICON)
 507         {
 508             ICONINFO iconInfo;
 509             BITMAP   bm;
 510
 511             GetIconInfo((HICON)infoPtr->hImage, &iconInfo);
 512             GetObjectA (iconInfo.hbmColor, sizeof(BITMAP), &bm);
 513
 514             imageWidth  = bm.bmWidth;
 515             imageHeight = bm.bmHeight;
 516
 517             DeleteObject(iconInfo.hbmColor);
 518             DeleteObject(iconInfo.hbmMask);
 519
 520         }
 521         else
 522         {
 523             BITMAP   bm;
 524
 525             GetObjectA (infoPtr->hImage, sizeof(BITMAP), &bm);
 526
 527             imageWidth  = bm.bmWidth;
 528             imageHeight = bm.bmHeight;
 529         }
 530
 531         /* Center the bitmap */
 532         xOffset = (((rc.right - rc.left) - 2*xBorderOffset) - imageWidth ) / 2;
 533         yOffset = (((rc.bottom - rc.top) - 2*yBorderOffset) - imageHeight) / 2;
 534
 535         /* If the image is too big for the button then create a region*/
 536         if(xOffset < 0 || yOffset < 0)
 537         {
 538             HRGN hBitmapRgn = 0;
 539             hBitmapRgn = CreateRectRgn(
 540                 rc.left + xBorderOffset, rc.top +yBorderOffset,
 541                 rc.right - xBorderOffset, rc.bottom - yBorderOffset);
 542             SelectClipRgn(hDC, hBitmapRgn);
 543             DeleteObject(hBitmapRgn);
 544         }
 545
 546         /* Let minimum 1 space from border */
 547         xOffset++, yOffset++;
 548
 549         /*
 550          * Draw the image now.
 551          */
 552         if (wndPtr->dwStyle & BS_ICON)
 553         {
 554             DrawIcon(hDC,
 555                 rc.left + xOffset, rc.top + yOffset,
 556                      (HICON)infoPtr->hImage);
 557         }
 558         else
 559         {
 560             HDC hdcMem;
 561
 562             hdcMem = CreateCompatibleDC (hDC);
 563             SelectObject (hdcMem, (HBITMAP)infoPtr->hImage);
 564             BitBlt(hDC,
 565                    rc.left + xOffset,
 566                    rc.top + yOffset,
 567                    imageWidth, imageHeight,
 568                    hdcMem, 0, 0, SRCCOPY);
 569
 570             DeleteDC (hdcMem);
 571         }
 572
 573         if(xOffset < 0 || yOffset < 0)
 574         {
 575             SelectClipRgn(hDC, 0);
 576         }
 577     }
 578
 579     if (TWEAK_WineLook != WIN31_LOOK
 580         && infoPtr->state & BUTTON_HASFOCUS)
 581     {
 582         InflateRect( &focus_rect, -1, -1 );
 583         DrawFocusRect( hDC, &focus_rect );
 584     }
 585
 586
 587     SelectObject( hDC, hOldPen );
 588     SelectObject( hDC, hOldBrush );
 589 }
 590
 591
 592 /**********************************************************************
 593  *   PB_Paint & CB_Paint sub function                        [internal]
 594  *   Paint text using a raster brush to avoid gray text on gray
 595  *   background. 'format' can be a combination of DT_CENTER and
 596  *   DT_VCENTER to use this function in both PB_PAINT and
 597  *   CB_PAINT.   - Dirk Thierbach
 598  *
 599  *   FIXME: This and TEXT_GrayString should be eventually combined,
 600  *   so calling one common function from PB_Paint, CB_Paint and
 601  *   TEXT_GrayString will be enough. Also note that this
 602  *   function ignores the CACHE_GetPattern funcs.
 603  */
 604
 605 void PaintGrayOnGray(HDC hDC,HFONT hFont,RECT *rc,char *text,
 606                         UINT format)
 607 {
 608 /*  This is the standard gray on gray pattern:
 609     static const WORD Pattern[] = {0xAA,0x55,0xAA,0x55,0xAA,0x55,0xAA,0x55};
 610 */
 611 /*  This pattern gives better readability with X Fonts.
 612     FIXME: Maybe the user should be allowed to decide which he wants. */
 613     static const WORD Pattern[] = {0x55,0xFF,0xAA,0xFF,0x55,0xFF,0xAA,0xFF};
 614
 615     HBITMAP hbm  = CreateBitmap( 8, 8, 1, 1, Pattern );
 616     HDC hdcMem = CreateCompatibleDC(hDC);
 617     HBITMAP hbmMem;
 618     HBRUSH hBr;
 619     RECT rect,rc2;
 620
 621     rect=*rc;
 622     DrawTextA( hDC, text, -1, &rect, DT_SINGLELINE | DT_CALCRECT);
 623     /* now text width and height are in rect.right and rect.bottom */
 624     rc2=rect;
 625     rect.left = rect.top = 0; /* drawing pos in hdcMem */
 626     if (format & DT_CENTER) rect.left=(rc->right-rect.right)/2;
 627     if (format & DT_VCENTER) rect.top=(rc->bottom-rect.bottom)/2;
 628     hbmMem = CreateCompatibleBitmap( hDC,rect.right,rect.bottom );
 629     SelectObject( hdcMem, hbmMem);
 630     PatBlt( hdcMem,0,0,rect.right,rect.bottom,WHITENESS);
 631       /* will be overwritten by DrawText, but just in case */
 632     if (hFont) SelectObject( hdcMem, hFont);
 633     DrawTextA( hdcMem, text, -1, &rc2, DT_SINGLELINE);
 634       /* After draw: foreground = 0 bits, background = 1 bits */
 635     hBr = SelectObject( hdcMem, CreatePatternBrush(hbm) );
 636     DeleteObject( hbm );
 637     PatBlt( hdcMem,0,0,rect.right,rect.bottom,0xAF0229);
 638       /* only keep the foreground bits where pattern is 1 */
 639     DeleteObject( SelectObject( hdcMem,hBr) );
 640     BitBlt(hDC,rect.left,rect.top,rect.right,rect.bottom,hdcMem,0,0,SRCAND);
 641       /* keep the background of the dest */
 642     DeleteDC( hdcMem);
 643     DeleteObject( hbmMem );
 644 }
 645
 646
 647 /**********************************************************************
 648  *       Check Box & Radio Button Functions
 649  */
 650
 651 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action )
 652 {
 653     RECT rbox, rtext, client;
 654     HBRUSH hBrush;
 655     int textlen, delta;
 656     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 657
 658     /*
 659      * if the button has a bitmap/icon, draw a normal pushbutton
 660      * instead of a radion button.
 661      */
 662     if (infoPtr->hImage != 0)
 663     {
 664         BOOL bHighLighted = ((infoPtr->state & BUTTON_HIGHLIGHTED) ||
 665                              (infoPtr->state & BUTTON_CHECKED));
 666
 667         BUTTON_DrawPushButton(wndPtr,
 668                               hDC,
 669                               action,
 670                               bHighLighted);
 671         return;
 672     }
 673
 674     textlen = 0;
 675     GetClientRect(wndPtr->hwndSelf, &client);
 676     rbox = rtext = client;
 677
 678     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 679
 680     /* Something is still not right, checkboxes (and edit controls)
 681      * in wsping32 have white backgrounds instead of dark grey.
 682      * BUTTON_SEND_CTLCOLOR() is even worse since it returns 0 in this
 683      * particular case and the background is not painted at all.
 684      */
 685
 686     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 687
 688     if (wndPtr->dwStyle & BS_LEFTTEXT)
 689     {
 690         /* magic +4 is what CTL3D expects */
 691
 692         rtext.right -= checkBoxWidth + 4;
 693         rbox.left = rbox.right - checkBoxWidth;
 694     }
 695     else
 696     {
 697         rtext.left += checkBoxWidth + 4;
 698         rbox.right = checkBoxWidth;
 699     }
 700
 701       /* Draw the check-box bitmap */
 702
 703     if (wndPtr->text) textlen = strlen( wndPtr->text );
 704     if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
 705     {
 706         if( TWEAK_WineLook == WIN31_LOOK )
 707         {
 708         HDC hMemDC = CreateCompatibleDC( hDC );
 709         int x = 0, y = 0;
 710         delta = (rbox.bottom - rbox.top - checkBoxHeight) / 2;
 711
 712         /* Check in case the client area is smaller than the checkbox bitmap */
 713         if (delta < 0) delta = 0;
 714
 715         if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
 716         else FillRect( hDC, &client, hBrush );
 717
 718         if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth;
 719         if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth;
 720         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 721             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight;
 722         else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight;
 723
 724         /* The bitmap for the radio button is not aligned with the
 725          * left of the window, it is 1 pixel off. */
 726         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 727             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
 728           rbox.left += 1;
 729
 730         SelectObject( hMemDC, hbitmapCheckBoxes );
 731         BitBlt( hDC, rbox.left, rbox.top + delta, checkBoxWidth,
 732                   checkBoxHeight, hMemDC, x, y, SRCCOPY );
 733         DeleteDC( hMemDC );
 734         }
 735         else
 736         {
 737             UINT state;
 738
 739             if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 740                 ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) state = DFCS_BUTTONRADIO;
 741             else if (infoPtr->state & BUTTON_3STATE) state = DFCS_BUTTON3STATE;
 742             else state = DFCS_BUTTONCHECK;
 743
 744             if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) state |= DFCS_CHECKED;
 745
 746             if (infoPtr->state & BUTTON_HIGHLIGHTED) state |= DFCS_PUSHED;
 747
 748             if (wndPtr->dwStyle & WS_DISABLED) state |= DFCS_INACTIVE;
 749
 750             DrawFrameControl( hDC, &rbox, DFC_BUTTON, state );
 751         }
 752
 753
 754         if( textlen && action != ODA_SELECT )
 755         {
 756           if (wndPtr->dwStyle & WS_DISABLED &&
 757               GetSysColor(COLOR_GRAYTEXT)==GetBkColor(hDC)) {
 758             /* don't write gray text on gray background */
 759             PaintGrayOnGray( hDC, infoPtr->hFont, &rtext, wndPtr->text,
 760                              DT_VCENTER);
 761           } else {
 762             if (wndPtr->dwStyle & WS_DISABLED)
 763                 SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 764             DrawTextA( hDC, wndPtr->text, textlen, &rtext,
 765                          DT_SINGLELINE | DT_VCENTER );
 766           }
 767         }
 768     }
 769
 770     if ((action == ODA_FOCUS) ||
 771         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 772     {
 773         /* again, this is what CTL3D expects */
 774
 775         SetRectEmpty(&rbox);
 776         if( textlen )
 777             DrawTextA( hDC, wndPtr->text, textlen, &rbox,
 778                          DT_SINGLELINE | DT_CALCRECT );
 779         textlen = rbox.bottom - rbox.top;
 780         delta = ((rtext.bottom - rtext.top) - textlen)/2;
 781         rbox.bottom = (rbox.top = rtext.top + delta - 1) + textlen + 2;
 782         textlen = rbox.right - rbox.left;
 783         rbox.right = (rbox.left += --rtext.left) + textlen + 2;
 784         IntersectRect(&rbox, &rbox, &rtext);
 785         DrawFocusRect( hDC, &rbox );
 786     }
 787 }
 788
 789
 790 /**********************************************************************
 791  *       BUTTON_CheckAutoRadioButton
 792  *
 793  * wndPtr is checked, uncheck every other auto radio button in group
 794  */
 795 static void BUTTON_CheckAutoRadioButton( WND *wndPtr )
 796 {
 797     HWND parent, sibling, start;
 798     if (!(wndPtr->dwStyle & WS_CHILD)) return;
 799     parent = wndPtr->parent->hwndSelf;
 800     /* assure that starting control is not disabled or invisible */
 801     start = sibling = GetNextDlgGroupItem( parent, wndPtr->hwndSelf, TRUE );
 802     do
 803     {
 804         WND *tmpWnd;
 805         if (!sibling) break;
 806         tmpWnd = WIN_FindWndPtr(sibling);
 807         if ((wndPtr->hwndSelf != sibling) &&
 808             ((tmpWnd->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
 809             SendMessageA( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 );
 810         sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
 811         WIN_ReleaseWndPtr(tmpWnd);
 812     } while (sibling != start);
 813 }
 814
 815
 816 /**********************************************************************
 817  *       Group Box Functions
 818  */
 819
 820 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action )
 821 {
 822     RECT rc, rcFrame;
 823     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 824
 825     if (action != ODA_DRAWENTIRE) return;
 826
 827     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 828
 829     GetClientRect( wndPtr->hwndSelf, &rc);
 830     if (TWEAK_WineLook == WIN31_LOOK) {
 831         HPEN hPrevPen = SelectObject( hDC,
 832                                           GetSysColorPen(COLOR_WINDOWFRAME));
 833         HBRUSH hPrevBrush = SelectObject( hDC,
 834                                               GetStockObject(NULL_BRUSH) );
 835
 836         Rectangle( hDC, rc.left, rc.top + 2, rc.right - 1, rc.bottom - 1 );
 837         SelectObject( hDC, hPrevBrush );
 838         SelectObject( hDC, hPrevPen );
 839     } else {
 840         TEXTMETRICA tm;
 841         rcFrame = rc;
 842
 843         if (infoPtr->hFont)
 844             SelectObject (hDC, infoPtr->hFont);
 845         GetTextMetricsA (hDC, &tm);
 846         rcFrame.top += (tm.tmHeight / 2) - 1;
 847         DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT);
 848     }
 849
 850     if (wndPtr->text)
 851     {
 852         if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 853         if (wndPtr->dwStyle & WS_DISABLED)
 854             SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 855         rc.left += 10;
 856         DrawTextA( hDC, wndPtr->text, -1, &rc, DT_SINGLELINE | DT_NOCLIP );
 857     }
 858 }
 859
 860
 861 /**********************************************************************
 862  *       User Button Functions
 863  */
 864
 865 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action )
 866 {
 867     RECT rc;
 868     HBRUSH hBrush;
 869     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 870
 871     if (action == ODA_SELECT) return;
 872
 873     GetClientRect( wndPtr->hwndSelf, &rc);
 874
 875     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 876     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 877
 878     FillRect( hDC, &rc, hBrush );
 879     if ((action == ODA_FOCUS) ||
 880         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 881         DrawFocusRect( hDC, &rc );
 882 }
 883
 884
 885 /**********************************************************************
 886  *       Ownerdrawn Button Functions
 887  */
 888
 889 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action )
 890 {
 891     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 892     DRAWITEMSTRUCT dis;
 893
 894     dis.CtlType    = ODT_BUTTON;
 895     dis.CtlID      = wndPtr->wIDmenu;
 896     dis.itemID     = 0;
 897     dis.itemAction = action;
 898     dis.itemState  = ((infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
 899                      ((infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
 900                      ((wndPtr->dwStyle & WS_DISABLED) ? ODS_DISABLED : 0);
 901     dis.hwndItem   = wndPtr->hwndSelf;
 902     dis.hDC        = hDC;
 903     dis.itemData   = 0;
 904     GetClientRect( wndPtr->hwndSelf, &dis.rcItem );
 905
 906     SetBkColor( hDC, GetSysColor( COLOR_BTNFACE ) );
 907
 908     SendMessageA( GetParent(wndPtr->hwndSelf), WM_DRAWITEM,
 909                     wndPtr->wIDmenu, (LPARAM)&dis );
 910 }
 911