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