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