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 "winbase.h"
  12 #include "windef.h"
  13 #include "wingdi.h"
  14 #include "wine/winuser16.h"
  15 #include "tweak.h"
  16
  17 static void PaintGrayOnGray( HDC hDC,HFONT hFont,RECT *rc,
  18                              LPCWSTR text, UINT format );
  19
  20 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action );
  21 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action );
  22 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action );
  23 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action );
  24 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action );
  25 static void BUTTON_CheckAutoRadioButton( WND *wndPtr );
  26 static void BUTTON_DrawPushButton( WND *wndPtr, HDC hDC, WORD action, BOOL pushedState);
  27
  28 #define MAX_BTN_TYPE  12
  29
  30 static const WORD maxCheckState[MAX_BTN_TYPE] =
  31 {
  32     BUTTON_UNCHECKED,   /* BS_PUSHBUTTON */
  33     BUTTON_UNCHECKED,   /* BS_DEFPUSHBUTTON */
  34     BUTTON_CHECKED,     /* BS_CHECKBOX */
  35     BUTTON_CHECKED,     /* BS_AUTOCHECKBOX */
  36     BUTTON_CHECKED,     /* BS_RADIOBUTTON */
  37     BUTTON_3STATE,      /* BS_3STATE */
  38     BUTTON_3STATE,      /* BS_AUTO3STATE */
  39     BUTTON_UNCHECKED,   /* BS_GROUPBOX */
  40     BUTTON_UNCHECKED,   /* BS_USERBUTTON */
  41     BUTTON_CHECKED,     /* BS_AUTORADIOBUTTON */
  42     BUTTON_UNCHECKED,   /* Not defined */
  43     BUTTON_UNCHECKED    /* BS_OWNERDRAW */
  44 };
  45
  46 typedef void (*pfPaint)( WND *wndPtr, HDC hdc, WORD action );
  47
  48 static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
  49 {
  50     PB_Paint,    /* BS_PUSHBUTTON */
  51     PB_Paint,    /* BS_DEFPUSHBUTTON */
  52     CB_Paint,    /* BS_CHECKBOX */
  53     CB_Paint,    /* BS_AUTOCHECKBOX */
  54     CB_Paint,    /* BS_RADIOBUTTON */
  55     CB_Paint,    /* BS_3STATE */
  56     CB_Paint,    /* BS_AUTO3STATE */
  57     GB_Paint,    /* BS_GROUPBOX */
  58     UB_Paint,    /* BS_USERBUTTON */
  59     CB_Paint,    /* BS_AUTORADIOBUTTON */
  60     NULL,        /* Not defined */
  61     OB_Paint     /* BS_OWNERDRAW */
  62 };
  63
  64 #define PAINT_BUTTON(wndPtr,style,action) \
  65      if (btnPaintFunc[style]) { \
  66          HDC hdc = GetDC( (wndPtr)->hwndSelf ); \
  67          (btnPaintFunc[style])(wndPtr,hdc,action); \
  68          ReleaseDC( (wndPtr)->hwndSelf, hdc ); }
  69
  70 #define BUTTON_SEND_CTLCOLOR(wndPtr,hdc) \
  71     SendMessageA( GetParent((wndPtr)->hwndSelf), WM_CTLCOLORBTN, \
  72                     (hdc), (wndPtr)->hwndSelf )
  73
  74 static HBITMAP hbitmapCheckBoxes = 0;
  75 static WORD checkBoxWidth = 0, checkBoxHeight = 0;
  76
  77
  78 /***********************************************************************
  79  *           ButtonWndProc_locked
  80  *
  81  * Called with window lock held.
  82  */
  83 static inline LRESULT WINAPI ButtonWndProc_locked(WND* wndPtr, UINT uMsg,
  84                                            WPARAM wParam, LPARAM lParam )
  85 {
  86     RECT rect;
  87     HWND        hWnd = wndPtr->hwndSelf;
  88     POINT pt;
  89     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
  90     LONG style = wndPtr->dwStyle & 0x0f;
  91     HANDLE oldHbitmap;
  92
  93     pt.x = LOWORD(lParam);
  94     pt.y = HIWORD(lParam);
  95
  96     switch (uMsg)
  97     {
  98     case WM_GETDLGCODE:
  99         switch(style)
 100         {
 101         case BS_PUSHBUTTON:      return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
 102         case BS_DEFPUSHBUTTON:   return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
 103         case BS_RADIOBUTTON:
 104         case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
 105         default:                 return DLGC_BUTTON;
 106         }
 107
 108     case WM_ENABLE:
 109         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 110         break;
 111
 112     case WM_CREATE:
 113         if (!hbitmapCheckBoxes)
 114         {
 115             BITMAP bmp;
 116             hbitmapCheckBoxes = LoadBitmapA(0, MAKEINTRESOURCEA(OBM_CHECKBOXES));
 117             GetObjectA( hbitmapCheckBoxes, sizeof(bmp), &bmp );
 118             checkBoxWidth  = bmp.bmWidth / 4;
 119             checkBoxHeight = bmp.bmHeight / 3;
 120         }
 121         if (style < 0L || style >= MAX_BTN_TYPE)
 122             return -1; /* abort */
 123         infoPtr->state = BUTTON_UNCHECKED;
 124         infoPtr->hFont = 0;
 125         infoPtr->hImage = 0;
 126         return 0;
 127
 128     case WM_ERASEBKGND:
 129         return 1;
 130
 131     case WM_PAINT:
 132         if (btnPaintFunc[style])
 133         {
 134             PAINTSTRUCT ps;
 135             HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
 136             int nOldMode = SetBkMode( hdc, OPAQUE );
 137             (btnPaintFunc[style])( wndPtr, hdc, ODA_DRAWENTIRE );
 138             SetBkMode(hdc, nOldMode); /*  reset painting mode */
 139             if( !wParam ) EndPaint( hWnd, &ps );
 140         }
 141         break;
 142
 143     case WM_KEYDOWN:
 144         if (wParam == VK_SPACE)
 145         {
 146             SendMessageA( hWnd, BM_SETSTATE, TRUE, 0 );
 147             infoPtr->state |= BUTTON_BTNPRESSED;
 148         }
 149         break;
 150
 151     case WM_LBUTTONDBLCLK:
 152         if(wndPtr->dwStyle & BS_NOTIFY ||
 153                 style==BS_RADIOBUTTON ||
 154                 style==BS_USERBUTTON ||
 155                 style==BS_OWNERDRAW) {
 156             SendMessageA( GetParent(hWnd), WM_COMMAND,
 157                     MAKEWPARAM( wndPtr->wIDmenu, BN_DOUBLECLICKED ), hWnd);
 158             break;
 159         }
 160         /* fall through */
 161     case WM_LBUTTONDOWN:
 162         SetCapture( hWnd );
 163         SetFocus( hWnd );
 164         SendMessageA( hWnd, BM_SETSTATE, TRUE, 0 );
 165         infoPtr->state |= BUTTON_BTNPRESSED;
 166         break;
 167
 168     case WM_KEYUP:
 169         if (wParam != VK_SPACE)
 170             break;
 171         /* fall through */
 172     case WM_LBUTTONUP:
 173         if (!(infoPtr->state & BUTTON_BTNPRESSED)) break;
 174         infoPtr->state &= BUTTON_NSTATES;
 175         if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) {
 176             ReleaseCapture();
 177             break;
 178         }
 179         SendMessageA( hWnd, BM_SETSTATE, FALSE, 0 );
 180         ReleaseCapture();
 181         GetClientRect( hWnd, &rect );
 182         if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
 183         {
 184             switch(style)
 185             {
 186             case BS_AUTOCHECKBOX:
 187                 SendMessageA( hWnd, BM_SETCHECK,
 188                                 !(infoPtr->state & BUTTON_CHECKED), 0 );
 189                 break;
 190             case BS_AUTORADIOBUTTON:
 191                 SendMessageA( hWnd, BM_SETCHECK, TRUE, 0 );
 192                 break;
 193             case BS_AUTO3STATE:
 194                 SendMessageA( hWnd, BM_SETCHECK,
 195                                 (infoPtr->state & BUTTON_3STATE) ? 0 :
 196                                 ((infoPtr->state & 3) + 1), 0 );
 197                 break;
 198             }
 199             SendMessageA( GetParent(hWnd), WM_COMMAND,
 200                             MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
 201         }
 202         break;
 203
 204     case WM_CAPTURECHANGED:
 205         if (infoPtr->state & BUTTON_BTNPRESSED) {
 206             infoPtr->state &= BUTTON_NSTATES;
 207             if (infoPtr->state & BUTTON_HIGHLIGHTED)
 208                 SendMessageA( hWnd, BM_SETSTATE, FALSE, 0 );
 209         }
 210         break;
 211
 212     case WM_MOUSEMOVE:
 213         if (GetCapture() == hWnd)
 214         {
 215             GetClientRect( hWnd, &rect );
 216             SendMessageA( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
 217         }
 218         break;
 219
 220     case WM_NCHITTEST:
 221         if(style == BS_GROUPBOX) return HTTRANSPARENT;
 222         return DefWindowProcA( hWnd, uMsg, wParam, lParam );
 223
 224     case WM_SETTEXT:
 225         DEFWND_SetTextA( wndPtr, (LPCSTR)lParam );
 226         if( wndPtr->dwStyle & WS_VISIBLE )
 227             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 228         return 0;
 229
 230     case WM_SETFONT:
 231         infoPtr->hFont = (HFONT16)wParam;
 232         if (lParam && (wndPtr->dwStyle & WS_VISIBLE))
 233             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 234         break;
 235
 236     case WM_GETFONT:
 237         return infoPtr->hFont;
 238
 239     case WM_SETFOCUS:
 240         if ((style == BS_RADIOBUTTON || style == BS_AUTORADIOBUTTON) && (GetCapture() != hWnd) &&
 241             !(SendMessageA(hWnd, BM_GETCHECK, 0, 0) & BST_CHECKED))
 242         {
 243             /* The notification is sent when the button (BS_AUTORADIOBUTTON)
 244                is unchecked and the focus was not given by a mouse click. */
 245             if (style == BS_AUTORADIOBUTTON)
 246                     SendMessageA( hWnd, BM_SETCHECK, BUTTON_CHECKED, 0 );
 247             SendMessageA( GetParent(hWnd), WM_COMMAND,
 248                           MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
 249         }
 250         infoPtr->state |= BUTTON_HASFOCUS;
 251         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 252         break;
 253
 254     case WM_KILLFOCUS:
 255         infoPtr->state &= ~BUTTON_HASFOCUS;
 256         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
 257         InvalidateRect( hWnd, NULL, TRUE );
 258         break;
 259
 260     case WM_SYSCOLORCHANGE:
 261         InvalidateRect( hWnd, NULL, FALSE );
 262         break;
 263
 264     case BM_SETSTYLE16:
 265     case BM_SETSTYLE:
 266         if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
 267         wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0)
 268                            | (wParam & 0x0000000f);
 269         style = wndPtr->dwStyle & 0x0000000f;
 270
 271         /* Only redraw if lParam flag is set.*/
 272         if (lParam)
 273            PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
 274
 275         break;
 276
 277     case BM_CLICK:
 278         SendMessageA( hWnd, WM_LBUTTONDOWN, 0, 0 );
 279         SendMessageA( hWnd, WM_LBUTTONUP, 0, 0 );
 280         break;
 281
 282     case BM_SETIMAGE:
 283         oldHbitmap = infoPtr->hImage;
 284         if ((wndPtr->dwStyle & BS_BITMAP) || (wndPtr->dwStyle & BS_ICON))
 285         {
 286             infoPtr->hImage = (HANDLE) lParam;
 287             InvalidateRect( hWnd, NULL, FALSE );
 288         }
 289         return oldHbitmap;
 290
 291     case BM_GETIMAGE:
 292         if (wParam == IMAGE_BITMAP)
 293             return (HBITMAP)infoPtr->hImage;
 294         else if (wParam == IMAGE_ICON)
 295             return (HICON)infoPtr->hImage;
 296         else
 297             return (HICON)0;
 298
 299     case BM_GETCHECK16:
 300     case BM_GETCHECK:
 301         return infoPtr->state & 3;
 302
 303     case BM_SETCHECK16:
 304     case BM_SETCHECK:
 305         if (wParam > maxCheckState[style]) wParam = maxCheckState[style];
 306         if ((infoPtr->state & 3) != wParam)
 307         {
 308             if ((style == BS_RADIOBUTTON) || (style == BS_AUTORADIOBUTTON))
 309             {
 310                 if (wParam)
 311                     wndPtr->dwStyle |= WS_TABSTOP;
 312                 else
 313                     wndPtr->dwStyle &= ~WS_TABSTOP;
 314             }
 315             infoPtr->state = (infoPtr->state & ~3) | wParam;
 316             PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 317         }
 318         if ((style == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED))
 319             BUTTON_CheckAutoRadioButton( wndPtr );
 320         break;
 321
 322     case BM_GETSTATE16:
 323     case BM_GETSTATE:
 324         return infoPtr->state;
 325
 326     case BM_SETSTATE16:
 327     case BM_SETSTATE:
 328         if (wParam)
 329         {
 330             if (infoPtr->state & BUTTON_HIGHLIGHTED) break;
 331             infoPtr->state |= BUTTON_HIGHLIGHTED;
 332         }
 333         else
 334         {
 335             if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
 336             infoPtr->state &= ~BUTTON_HIGHLIGHTED;
 337         }
 338         PAINT_BUTTON( wndPtr, style, ODA_SELECT );
 339         break;
 340
 341     default:
 342         return DefWindowProcA(hWnd, uMsg, wParam, lParam);
 343     }
 344     return 0;
 345 }
 346
 347 /***********************************************************************
 348  *           ButtonWndProc
 349  * The button window procedure. This is just a wrapper which locks
 350  * the passed HWND and calls the real window procedure (with a WND*
 351  * pointer pointing to the locked windowstructure).
 352  */
 353 LRESULT WINAPI ButtonWndProc( HWND hWnd, UINT uMsg,
 354                               WPARAM wParam, LPARAM lParam )
 355 {
 356     LRESULT res;
 357     WND *wndPtr = WIN_FindWndPtr(hWnd);
 358
 359     res = ButtonWndProc_locked(wndPtr,uMsg,wParam,lParam);
 360
 361     WIN_ReleaseWndPtr(wndPtr);
 362     return res;
 363 }
 364
 365 /**********************************************************************
 366  *       Push Button Functions
 367  */
 368 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action )
 369 {
 370     BUTTONINFO *infoPtr      = (BUTTONINFO *)wndPtr->wExtra;
 371     BOOL        bHighLighted = (infoPtr->state & BUTTON_HIGHLIGHTED);
 372
 373     /*
 374      * Delegate this to the more generic pushbutton painting
 375      * method.
 376      */
 377     BUTTON_DrawPushButton(wndPtr,
 378                           hDC,
 379                           action,
 380                           bHighLighted);
 381 }
 382
 383 /**********************************************************************
 384  * This method will actually do the drawing of the pushbutton
 385  * depending on it's state and the pushedState parameter.
 386  */
 387 static void BUTTON_DrawPushButton(
 388   WND* wndPtr,
 389   HDC  hDC,
 390   WORD action,
 391   BOOL pushedState )
 392 {
 393     RECT rc, focus_rect;
 394     HPEN hOldPen;
 395     HBRUSH hOldBrush;
 396     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 397     int xBorderOffset, yBorderOffset;
 398     xBorderOffset = yBorderOffset = 0;
 399
 400     GetClientRect( wndPtr->hwndSelf, &rc );
 401
 402       /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
 403     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 404     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 405     hOldPen = (HPEN)SelectObject(hDC, GetSysColorPen(COLOR_WINDOWFRAME));
 406     hOldBrush =(HBRUSH)SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
 407     SetBkMode(hDC, TRANSPARENT);
 408
 409     if ( TWEAK_WineLook == WIN31_LOOK)
 410     {
 411         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 412
 413         SetPixel( hDC, rc.left, rc.top, GetSysColor(COLOR_WINDOW) );
 414         SetPixel( hDC, rc.left, rc.bottom-1, GetSysColor(COLOR_WINDOW) );
 415         SetPixel( hDC, rc.right-1, rc.top, GetSysColor(COLOR_WINDOW) );
 416         SetPixel( hDC, rc.right-1, rc.bottom-1, GetSysColor(COLOR_WINDOW));
 417         InflateRect( &rc, -1, -1 );
 418     }
 419
 420     if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON)
 421     {
 422         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 423         InflateRect( &rc, -1, -1 );
 424     }
 425
 426     if (TWEAK_WineLook == WIN31_LOOK)
 427     {
 428         if (pushedState)
 429         {
 430             /* draw button shadow: */
 431             SelectObject(hDC, GetSysColorBrush(COLOR_BTNSHADOW));
 432             PatBlt(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY );
 433             PatBlt(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY );
 434             rc.left += 2;  /* To position the text down and right */
 435             rc.top  += 2;
 436         } else {
 437            rc.right++, rc.bottom++;
 438            DrawEdge( hDC, &rc, EDGE_RAISED, BF_RECT );
 439
 440            /* To place the bitmap correctly */
 441            xBorderOffset += GetSystemMetrics(SM_CXEDGE);
 442            yBorderOffset += GetSystemMetrics(SM_CYEDGE);
 443
 444            rc.right--, rc.bottom--;
 445         }
 446     }
 447     else
 448     {
 449         UINT uState = DFCS_BUTTONPUSH;
 450
 451         if (pushedState)
 452         {
 453             if ( (wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON )
 454                 uState |= DFCS_FLAT;
 455             else
 456                 uState |= DFCS_PUSHED;
 457         }
 458
 459         DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );
 460         InflateRect( &rc, -2, -2 );
 461
 462         focus_rect = rc;
 463
 464         if (pushedState)
 465         {
 466             rc.left += 2;  /* To position the text down and right */
 467             rc.top  += 2;
 468         }
 469     }
 470
 471     /* draw button label, if any:
 472      *
 473      * In win9x we don't show text if there is a bitmap or icon.
 474      * I don't know about win31 so I leave it as it was for win31.
 475      * Dennis Björklund 12 Jul, 99
 476      */
 477     if ( wndPtr->text && wndPtr->text[0]
 478          && (TWEAK_WineLook == WIN31_LOOK || !(wndPtr->dwStyle & (BS_ICON|BS_BITMAP))) )
 479     {
 480         LOGBRUSH lb;
 481         GetObjectA( GetSysColorBrush(COLOR_BTNFACE), sizeof(lb), &lb );
 482         if (wndPtr->dwStyle & WS_DISABLED &&
 483             GetSysColor(COLOR_GRAYTEXT)==lb.lbColor)
 484             /* don't write gray text on gray background */
 485             PaintGrayOnGray( hDC,infoPtr->hFont,&rc,wndPtr->text,
 486                                DT_CENTER | DT_VCENTER );
 487         else
 488         {
 489             SetTextColor( hDC, (wndPtr->dwStyle & WS_DISABLED) ?
 490                                  GetSysColor(COLOR_GRAYTEXT) :
 491                                  GetSysColor(COLOR_BTNTEXT) );
 492             DrawTextW( hDC, wndPtr->text, -1, &rc,
 493                          DT_SINGLELINE | DT_CENTER | DT_VCENTER );
 494             /* do we have the focus?
 495              * Win9x draws focus last with a size prop. to the button
 496              */
 497             if (TWEAK_WineLook == WIN31_LOOK
 498                 && infoPtr->state & BUTTON_HASFOCUS)
 499             {
 500                 RECT r = { 0, 0, 0, 0 };
 501                 INT xdelta, ydelta;
 502
 503                 DrawTextW( hDC, wndPtr->text, -1, &r,
 504                              DT_SINGLELINE | DT_CALCRECT );
 505                 xdelta = ((rc.right - rc.left) - (r.right - r.left) - 1) / 2;
 506                 ydelta = ((rc.bottom - rc.top) - (r.bottom - r.top) - 1) / 2;
 507                 if (xdelta < 0) xdelta = 0;
 508                 if (ydelta < 0) ydelta = 0;
 509                 InflateRect( &rc, -xdelta, -ydelta );
 510                 DrawFocusRect( hDC, &rc );
 511             }
 512         }
 513     }
 514     if ( ((wndPtr->dwStyle & BS_ICON) || (wndPtr->dwStyle & BS_BITMAP) ) &&
 515          (infoPtr->hImage != 0) )
 516     {
 517         int yOffset, xOffset;
 518         int imageWidth, imageHeight;
 519
 520         /*
 521          * We extract the size of the image from the handle.
 522          */
 523         if (wndPtr->dwStyle & BS_ICON)
 524         {
 525             ICONINFO iconInfo;
 526             BITMAP   bm;
 527
 528             GetIconInfo((HICON)infoPtr->hImage, &iconInfo);
 529             GetObjectA (iconInfo.hbmColor, sizeof(BITMAP), &bm);
 530
 531             imageWidth  = bm.bmWidth;
 532             imageHeight = bm.bmHeight;
 533
 534             DeleteObject(iconInfo.hbmColor);
 535             DeleteObject(iconInfo.hbmMask);
 536
 537         }
 538         else
 539         {
 540             BITMAP   bm;
 541
 542             GetObjectA (infoPtr->hImage, sizeof(BITMAP), &bm);
 543
 544             imageWidth  = bm.bmWidth;
 545             imageHeight = bm.bmHeight;
 546         }
 547
 548         /* Center the bitmap */
 549         xOffset = (((rc.right - rc.left) - 2*xBorderOffset) - imageWidth ) / 2;
 550         yOffset = (((rc.bottom - rc.top) - 2*yBorderOffset) - imageHeight) / 2;
 551
 552         /* If the image is too big for the button then create a region */
 553         if(xOffset < 0 || yOffset < 0)
 554         {
 555             HRGN hBitmapRgn = 0;
 556             hBitmapRgn = CreateRectRgn(
 557                 rc.left + xBorderOffset, rc.top +yBorderOffset,
 558                 rc.right - xBorderOffset, rc.bottom - yBorderOffset);
 559             SelectClipRgn(hDC, hBitmapRgn);
 560             DeleteObject(hBitmapRgn);
 561         }
 562
 563         /* Let minimum 1 space from border */
 564         xOffset++, yOffset++;
 565
 566         /*
 567          * Draw the image now.
 568          */
 569         if (wndPtr->dwStyle & BS_ICON)
 570         {
 571             DrawIcon(hDC,
 572                 rc.left + xOffset, rc.top + yOffset,
 573                      (HICON)infoPtr->hImage);
 574         }
 575         else
 576         {
 577             HDC hdcMem;
 578
 579             hdcMem = CreateCompatibleDC (hDC);
 580             SelectObject (hdcMem, (HBITMAP)infoPtr->hImage);
 581             BitBlt(hDC,
 582                    rc.left + xOffset,
 583                    rc.top + yOffset,
 584                    imageWidth, imageHeight,
 585                    hdcMem, 0, 0, SRCCOPY);
 586
 587             DeleteDC (hdcMem);
 588         }
 589
 590         if(xOffset < 0 || yOffset < 0)
 591         {
 592             SelectClipRgn(hDC, 0);
 593         }
 594     }
 595
 596     if (TWEAK_WineLook != WIN31_LOOK
 597         && infoPtr->state & BUTTON_HASFOCUS)
 598     {
 599         InflateRect( &focus_rect, -1, -1 );
 600         DrawFocusRect( hDC, &focus_rect );
 601     }
 602
 603
 604     SelectObject( hDC, hOldPen );
 605     SelectObject( hDC, hOldBrush );
 606 }
 607
 608
 609 /**********************************************************************
 610  *   PB_Paint & CB_Paint sub function                        [internal]
 611  *   Paint text using a raster brush to avoid gray text on gray
 612  *   background. 'format' can be a combination of DT_CENTER and
 613  *   DT_VCENTER to use this function in both PB_PAINT and
 614  *   CB_PAINT.   - Dirk Thierbach
 615  *
 616  *   FIXME: This and TEXT_GrayString should be eventually combined,
 617  *   so calling one common function from PB_Paint, CB_Paint and
 618  *   TEXT_GrayString will be enough. Also note that this
 619  *   function ignores the CACHE_GetPattern funcs.
 620  */
 621
 622 void PaintGrayOnGray(HDC hDC, HFONT hFont, RECT *rc, LPCWSTR text,
 623                         UINT format)
 624 {
 625 /*  This is the standard gray on gray pattern:
 626     static const WORD Pattern[] = {0xAA,0x55,0xAA,0x55,0xAA,0x55,0xAA,0x55};
 627 */
 628 /*  This pattern gives better readability with X Fonts.
 629     FIXME: Maybe the user should be allowed to decide which he wants. */
 630     static const WORD Pattern[] = {0x55,0xFF,0xAA,0xFF,0x55,0xFF,0xAA,0xFF};
 631
 632     HBITMAP hbm  = CreateBitmap( 8, 8, 1, 1, Pattern );
 633     HDC hdcMem = CreateCompatibleDC(hDC);
 634     HBITMAP hbmMem;
 635     HBRUSH hBr;
 636     RECT rect,rc2;
 637
 638     rect=*rc;
 639     DrawTextW( hDC, text, -1, &rect, DT_SINGLELINE | DT_CALCRECT);
 640     /* now text width and height are in rect.right and rect.bottom */
 641     rc2=rect;
 642     rect.left = rect.top = 0; /* drawing pos in hdcMem */
 643     if (format & DT_CENTER) rect.left=(rc->right-rect.right)/2;
 644     if (format & DT_VCENTER) rect.top=(rc->bottom-rect.bottom)/2;
 645     hbmMem = CreateCompatibleBitmap( hDC,rect.right,rect.bottom );
 646     SelectObject( hdcMem, hbmMem);
 647     PatBlt( hdcMem,0,0,rect.right,rect.bottom,WHITENESS);
 648       /* will be overwritten by DrawText, but just in case */
 649     if (hFont) SelectObject( hdcMem, hFont);
 650     DrawTextW( hdcMem, text, -1, &rc2, DT_SINGLELINE);
 651       /* After draw: foreground = 0 bits, background = 1 bits */
 652     hBr = SelectObject( hdcMem, CreatePatternBrush(hbm) );
 653     DeleteObject( hbm );
 654     PatBlt( hdcMem,0,0,rect.right,rect.bottom,0xAF0229);
 655       /* only keep the foreground bits where pattern is 1 */
 656     DeleteObject( SelectObject( hdcMem,hBr) );
 657     BitBlt(hDC,rect.left,rect.top,rect.right,rect.bottom,hdcMem,0,0,SRCAND);
 658       /* keep the background of the dest */
 659     DeleteDC( hdcMem);
 660     DeleteObject( hbmMem );
 661 }
 662
 663
 664 /**********************************************************************
 665  *       Check Box & Radio Button Functions
 666  */
 667
 668 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action )
 669 {
 670     RECT rbox, rtext, client;
 671     HBRUSH hBrush;
 672     int textlen, delta;
 673     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 674
 675     /*
 676      * if the button has a bitmap/icon, draw a normal pushbutton
 677      * instead of a radion button.
 678      */
 679     if (infoPtr->hImage != 0)
 680     {
 681         BOOL bHighLighted = ((infoPtr->state & BUTTON_HIGHLIGHTED) ||
 682                              (infoPtr->state & BUTTON_CHECKED));
 683
 684         BUTTON_DrawPushButton(wndPtr,
 685                               hDC,
 686                               action,
 687                               bHighLighted);
 688         return;
 689     }
 690
 691     textlen = 0;
 692     GetClientRect(wndPtr->hwndSelf, &client);
 693     rbox = rtext = client;
 694
 695     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 696
 697     /* Something is still not right, checkboxes (and edit controls)
 698      * in wsping32 have white backgrounds instead of dark grey.
 699      * BUTTON_SEND_CTLCOLOR() is even worse since it returns 0 in this
 700      * particular case and the background is not painted at all.
 701      */
 702
 703     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 704
 705     if (wndPtr->dwStyle & BS_LEFTTEXT)
 706     {
 707         /* magic +4 is what CTL3D expects */
 708
 709         rtext.right -= checkBoxWidth + 4;
 710         rbox.left = rbox.right - checkBoxWidth;
 711     }
 712     else
 713     {
 714         rtext.left += checkBoxWidth + 4;
 715         rbox.right = checkBoxWidth;
 716     }
 717
 718       /* Draw the check-box bitmap */
 719
 720     if (wndPtr->text) textlen = lstrlenW( wndPtr->text );
 721     if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
 722     {
 723         if( TWEAK_WineLook == WIN31_LOOK )
 724         {
 725         HDC hMemDC = CreateCompatibleDC( hDC );
 726         int x = 0, y = 0;
 727         delta = (rbox.bottom - rbox.top - checkBoxHeight) / 2;
 728
 729         /* Check in case the client area is smaller than the checkbox bitmap */
 730         if (delta < 0) delta = 0;
 731
 732         if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
 733         else FillRect( hDC, &client, hBrush );
 734
 735         if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth;
 736         if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth;
 737         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 738             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight;
 739         else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight;
 740
 741         /* The bitmap for the radio button is not aligned with the
 742          * left of the window, it is 1 pixel off. */
 743         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 744             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
 745           rbox.left += 1;
 746
 747         SelectObject( hMemDC, hbitmapCheckBoxes );
 748         BitBlt( hDC, rbox.left, rbox.top + delta, checkBoxWidth,
 749                   checkBoxHeight, hMemDC, x, y, SRCCOPY );
 750         DeleteDC( hMemDC );
 751         }
 752         else
 753         {
 754             UINT state;
 755
 756             if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
 757                 ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) state = DFCS_BUTTONRADIO;
 758             else if (infoPtr->state & BUTTON_3STATE) state = DFCS_BUTTON3STATE;
 759             else state = DFCS_BUTTONCHECK;
 760
 761             if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) state |= DFCS_CHECKED;
 762
 763             if (infoPtr->state & BUTTON_HIGHLIGHTED) state |= DFCS_PUSHED;
 764
 765             if (wndPtr->dwStyle & WS_DISABLED) state |= DFCS_INACTIVE;
 766
 767             /* rbox must have the correct height */
 768             delta = rbox.bottom - rbox.top - checkBoxHeight;
 769             if (delta > 0)
 770             {
 771                 int ofs = (abs(delta) / 2);
 772                 rbox.bottom -= ofs + 1;
 773                 rbox.top = rbox.bottom - checkBoxHeight;
 774             }
 775             else if (delta < 0)
 776             {
 777                 int ofs = (abs(delta) / 2);
 778                 rbox.top -= ofs + 1;
 779                 rbox.bottom = rbox.top + checkBoxHeight;
 780             }
 781
 782             DrawFrameControl( hDC, &rbox, DFC_BUTTON, state );
 783         }
 784
 785         if( textlen && action != ODA_SELECT )
 786         {
 787           if (wndPtr->dwStyle & WS_DISABLED &&
 788               GetSysColor(COLOR_GRAYTEXT)==GetBkColor(hDC)) {
 789             /* don't write gray text on gray background */
 790             PaintGrayOnGray( hDC, infoPtr->hFont, &rtext, wndPtr->text,
 791                              DT_VCENTER);
 792           } else {
 793             if (wndPtr->dwStyle & WS_DISABLED)
 794                 SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 795             DrawTextW( hDC, wndPtr->text, textlen, &rtext,
 796                          DT_SINGLELINE | DT_VCENTER );
 797           }
 798         }
 799     }
 800
 801     if ((action == ODA_FOCUS) ||
 802         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 803     {
 804         /* again, this is what CTL3D expects */
 805
 806         SetRectEmpty(&rbox);
 807         if( textlen )
 808             DrawTextW( hDC, wndPtr->text, textlen, &rbox,
 809                          DT_SINGLELINE | DT_CALCRECT );
 810         textlen = rbox.bottom - rbox.top;
 811         delta = ((rtext.bottom - rtext.top) - textlen)/2;
 812         rbox.bottom = (rbox.top = rtext.top + delta - 1) + textlen + 2;
 813         textlen = rbox.right - rbox.left;
 814         rbox.right = (rbox.left += --rtext.left) + textlen + 2;
 815         IntersectRect(&rbox, &rbox, &rtext);
 816         DrawFocusRect( hDC, &rbox );
 817     }
 818 }
 819
 820
 821 /**********************************************************************
 822  *       BUTTON_CheckAutoRadioButton
 823  *
 824  * wndPtr is checked, uncheck every other auto radio button in group
 825  */
 826 static void BUTTON_CheckAutoRadioButton( WND *wndPtr )
 827 {
 828     HWND parent, sibling, start;
 829     if (!(wndPtr->dwStyle & WS_CHILD)) return;
 830     parent = wndPtr->parent->hwndSelf;
 831     /* assure that starting control is not disabled or invisible */
 832     start = sibling = GetNextDlgGroupItem( parent, wndPtr->hwndSelf, TRUE );
 833     do
 834     {
 835         WND *tmpWnd;
 836         if (!sibling) break;
 837         tmpWnd = WIN_FindWndPtr(sibling);
 838         if ((wndPtr->hwndSelf != sibling) &&
 839             ((tmpWnd->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
 840             SendMessageA( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 );
 841         sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
 842         WIN_ReleaseWndPtr(tmpWnd);
 843     } while (sibling != start);
 844 }
 845
 846
 847 /**********************************************************************
 848  *       Group Box Functions
 849  */
 850
 851 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action )
 852 {
 853     RECT rc, rcFrame;
 854     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 855
 856     if (action != ODA_DRAWENTIRE) return;
 857
 858     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
 859
 860     GetClientRect( wndPtr->hwndSelf, &rc);
 861     if (TWEAK_WineLook == WIN31_LOOK) {
 862         HPEN hPrevPen = SelectObject( hDC,
 863                                           GetSysColorPen(COLOR_WINDOWFRAME));
 864         HBRUSH hPrevBrush = SelectObject( hDC,
 865                                               GetStockObject(NULL_BRUSH) );
 866
 867         Rectangle( hDC, rc.left, rc.top + 2, rc.right - 1, rc.bottom - 1 );
 868         SelectObject( hDC, hPrevBrush );
 869         SelectObject( hDC, hPrevPen );
 870     } else {
 871         TEXTMETRICA tm;
 872         rcFrame = rc;
 873
 874         if (infoPtr->hFont)
 875             SelectObject (hDC, infoPtr->hFont);
 876         GetTextMetricsA (hDC, &tm);
 877         rcFrame.top += (tm.tmHeight / 2) - 1;
 878         DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT);
 879     }
 880
 881     if (wndPtr->text)
 882     {
 883         if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 884         if (wndPtr->dwStyle & WS_DISABLED)
 885             SetTextColor( hDC, GetSysColor(COLOR_GRAYTEXT) );
 886         rc.left += 10;
 887         DrawTextW( hDC, wndPtr->text, -1, &rc, DT_SINGLELINE | DT_NOCLIP );
 888     }
 889 }
 890
 891
 892 /**********************************************************************
 893  *       User Button Functions
 894  */
 895
 896 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action )
 897 {
 898     RECT rc;
 899     HBRUSH hBrush;
 900     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 901
 902     if (action == ODA_SELECT) return;
 903
 904     GetClientRect( wndPtr->hwndSelf, &rc);
 905
 906     if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
 907     hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
 908
 909     FillRect( hDC, &rc, hBrush );
 910     if ((action == ODA_FOCUS) ||
 911         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
 912         DrawFocusRect( hDC, &rc );
 913 }
 914
 915
 916 /**********************************************************************
 917  *       Ownerdrawn Button Functions
 918  */
 919
 920 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action )
 921 {
 922     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
 923     DRAWITEMSTRUCT dis;
 924     HRGN clipRegion;
 925     RECT clipRect;
 926
 927     dis.CtlType    = ODT_BUTTON;
 928     dis.CtlID      = wndPtr->wIDmenu;
 929     dis.itemID     = 0;
 930     dis.itemAction = action;
 931     dis.itemState  = ((infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
 932                      ((infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
 933                      ((wndPtr->dwStyle & WS_DISABLED) ? ODS_DISABLED : 0);
 934     dis.hwndItem   = wndPtr->hwndSelf;
 935     dis.hDC        = hDC;
 936     dis.itemData   = 0;
 937     GetClientRect( wndPtr->hwndSelf, &dis.rcItem );
 938
 939     clipRegion = CreateRectRgnIndirect(&dis.rcItem);
 940     if (GetClipRgn(hDC, clipRegion) != 1)
 941     {
 942         DeleteObject(clipRegion);
 943         clipRegion=(HRGN)NULL;
 944     }
 945     clipRect = dis.rcItem;
 946     DPtoLP(hDC, (LPPOINT) &clipRect, 2);
 947     IntersectClipRect(hDC, clipRect.left,  clipRect.top, clipRect.right, clipRect.bottom);
 948
 949     SetBkColor( hDC, GetSysColor( COLOR_BTNFACE ) );
 950
 951     SendMessageA( GetParent(wndPtr->hwndSelf), WM_DRAWITEM,
 952                     wndPtr->wIDmenu, (LPARAM)&dis );
 953
 954     SelectClipRgn(hDC, clipRegion);
 955 }
 956