controls/button.c

   1 /* File: button.c -- Button type widgets
   2  *
   3  * Copyright (C) 1993 Johannes Ruscheinski
   4  * Copyright (C) 1993 David Metcalfe
   5  */
   6
   7 static char Copyright1[] = "Copyright Johannes Ruscheinski, 1993";
   8 static char Copyright2[] = "Copyright David Metcalfe, 1993";
   9
  10 #include <windows.h>
  11 #include "win.h"
  12 #include "user.h"
  13 #include "syscolor.h"
  14
  15 LONG ButtonWndProc(HWND hWnd, WORD uMsg, WORD wParam, LONG lParam);
  16
  17 static BOOL pressed;
  18
  19 #define NOTIFY_PARENT(hWndCntrl, wNotifyCode) \
  20         SendMessage(GetParent(hWndCntrl), WM_COMMAND, \
  21                 GetDlgCtrlID(hWndCntrl), MAKELPARAM(hWndCntrl, wNotifyCode));
  22 #define DIM(array)      ((sizeof array)/(sizeof array[0]))
  23
  24 static LONG PB_Paint(HWND hWnd);
  25 static LONG PB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  26 static LONG PB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  27 static LONG PB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  28 static LONG PB_KillFocus(HWND hwnd);
  29 static void DrawRaisedPushButton(HDC hDC, HWND hButton, RECT rc);
  30 static void DrawPressedPushButton(HDC hDC, HWND hButton, RECT rc);
  31 static LONG CB_Paint(HWND hWnd);
  32 static LONG CB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  33 static LONG CB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  34 static LONG CB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  35 static LONG CB_KillFocus(HWND hWnd);
  36 static LONG CB_SetCheck(HWND hWnd, WORD wParam);
  37 static LONG CB_GetCheck(HWND hWnd);
  38 static LONG RB_Paint(HWND hWnd);
  39 static LONG RB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  40 static LONG RB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  41 static LONG RB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  42 static LONG RB_KillFocus(HWND hWnd);
  43 static LONG RB_SetCheck(HWND hWnd, WORD wParam);
  44 static LONG RB_GetCheck(HWND hWnd);
  45 static LONG GB_Paint(HWND hWnd);
  46 static LONG UB_Paint(HWND hWnd);
  47 static LONG UB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  48 static LONG UB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  49 static LONG UB_KillFocus(HWND hWnd);
  50 static LONG OB_Paint(HWND hWnd);
  51 static LONG OB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  52 static LONG OB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  53 static LONG OB_KillFocus(HWND hWnd);
  54
  55 typedef struct
  56 {
  57     LONG (*paintfn)();
  58     LONG (*lButtonDownfn)();
  59     LONG (*lButtonUpfn)();
  60     LONG (*lButtonDblClkfn)();
  61     LONG (*killFocusfn)();
  62     LONG (*setCheckfn)();
  63     LONG (*getCheckfn)();
  64 } BTNFN;
  65
  66 #define MAX_BTN_TYPE  12
  67
  68 static BTNFN btnfn[MAX_BTN_TYPE] =
  69 {
  70     {
  71         (LONG(*)())PB_Paint,                       /* BS_PUSHBUTTON */
  72         (LONG(*)())PB_LButtonDown,
  73         (LONG(*)())PB_LButtonUp,
  74         (LONG(*)())PB_LButtonDblClk,
  75         (LONG(*)())PB_KillFocus,
  76         (LONG(*)())NULL,
  77         (LONG(*)())NULL
  78     },
  79     {
  80         (LONG(*)())PB_Paint,                       /* BS_DEFPUSHBUTTON */
  81         (LONG(*)())PB_LButtonDown,
  82         (LONG(*)())PB_LButtonUp,
  83         (LONG(*)())PB_LButtonDblClk,
  84         (LONG(*)())PB_KillFocus,
  85         (LONG(*)())NULL,
  86         (LONG(*)())NULL
  87     },
  88     {
  89         (LONG(*)())CB_Paint,                       /* BS_CHECKBOX */
  90         (LONG(*)())CB_LButtonDown,
  91         (LONG(*)())CB_LButtonUp,
  92         (LONG(*)())CB_LButtonDblClk,
  93         (LONG(*)())CB_KillFocus,
  94         (LONG(*)())CB_SetCheck,
  95         (LONG(*)())CB_GetCheck
  96     },
  97     {
  98         (LONG(*)())CB_Paint,                       /* BS_AUTOCHECKBOX */
  99         (LONG(*)())CB_LButtonDown,
 100         (LONG(*)())CB_LButtonUp,
 101         (LONG(*)())CB_LButtonDblClk,
 102         (LONG(*)())CB_KillFocus,
 103         (LONG(*)())CB_SetCheck,
 104         (LONG(*)())CB_GetCheck
 105     },
 106     {
 107         (LONG(*)())RB_Paint,                       /* BS_RADIOBUTTON */
 108         (LONG(*)())RB_LButtonDown,
 109         (LONG(*)())RB_LButtonUp,
 110         (LONG(*)())RB_LButtonDblClk,
 111         (LONG(*)())RB_KillFocus,
 112         (LONG(*)())RB_SetCheck,
 113         (LONG(*)())RB_GetCheck
 114     },
 115     {
 116         (LONG(*)())CB_Paint,                       /* BS_3STATE */
 117         (LONG(*)())CB_LButtonDown,
 118         (LONG(*)())CB_LButtonUp,
 119         (LONG(*)())CB_LButtonDblClk,
 120         (LONG(*)())CB_KillFocus,
 121         (LONG(*)())CB_SetCheck,
 122         (LONG(*)())CB_GetCheck
 123     },
 124     {
 125         (LONG(*)())CB_Paint,                       /* BS_AUTO3STATE */
 126         (LONG(*)())CB_LButtonDown,
 127         (LONG(*)())CB_LButtonUp,
 128         (LONG(*)())CB_LButtonDblClk,
 129         (LONG(*)())CB_KillFocus,
 130         (LONG(*)())CB_SetCheck,
 131         (LONG(*)())CB_GetCheck
 132     },
 133     {
 134         (LONG(*)())GB_Paint,                       /* BS_GROUPBOX */
 135         (LONG(*)())NULL,
 136         (LONG(*)())NULL,
 137         (LONG(*)())NULL,
 138         (LONG(*)())NULL,
 139         (LONG(*)())NULL,
 140         (LONG(*)())NULL
 141     },
 142     {
 143         (LONG(*)())UB_Paint,                       /* BS_USERBUTTON */
 144         (LONG(*)())UB_LButtonDown,
 145         (LONG(*)())UB_LButtonUp,
 146         (LONG(*)())NULL,
 147         (LONG(*)())UB_KillFocus,
 148         (LONG(*)())NULL,
 149         (LONG(*)())NULL
 150     },
 151     {
 152         (LONG(*)())RB_Paint,                       /* BS_AUTORADIOBUTTON */
 153         (LONG(*)())RB_LButtonDown,
 154         (LONG(*)())RB_LButtonUp,
 155         (LONG(*)())RB_LButtonDblClk,
 156         (LONG(*)())RB_KillFocus,
 157         (LONG(*)())RB_SetCheck,
 158         (LONG(*)())RB_GetCheck
 159     },
 160     {
 161         (LONG(*)())NULL,                           /* Not defined */
 162         (LONG(*)())NULL,
 163         (LONG(*)())NULL,
 164         (LONG(*)())NULL,
 165         (LONG(*)())NULL,
 166         (LONG(*)())NULL,
 167         (LONG(*)())NULL
 168     },
 169     {
 170         (LONG(*)())OB_Paint,                       /* BS_OWNERDRAW */
 171         (LONG(*)())OB_LButtonDown,
 172         (LONG(*)())OB_LButtonUp,
 173         (LONG(*)())NULL,
 174         (LONG(*)())OB_KillFocus,
 175         (LONG(*)())NULL,
 176         (LONG(*)())NULL
 177     },
 178 };
 179
 180
 181 LONG ButtonWndProc(HWND hWnd, WORD uMsg, WORD wParam, LONG lParam)
 182 {
 183         LONG lResult = 0;
 184         HDC hDC;
 185         RECT rc;
 186
 187         WND *wndPtr = WIN_FindWndPtr(hWnd);
 188         LONG style = wndPtr->dwStyle & 0x0000000F;
 189
 190         switch (uMsg) {
 191 /*      case WM_GETDLGCODE:
 192                 lResult = DLGC_BUTTON;
 193                 break;
 194 */
 195         case WM_ENABLE:
 196                 InvalidateRect(hWnd, NULL, FALSE);
 197                 break;
 198
 199         case WM_CREATE:
 200                 if (style < 0L || style >= (LONG)DIM(btnfn))
 201                     lResult = -1L;
 202                 else
 203                 {
 204                     (WORD)(*(wndPtr->wExtra)) = 0;
 205                     pressed = FALSE;
 206                     lResult = 0L;
 207                 }
 208                 break;
 209
 210         case WM_PAINT:
 211                 if (btnfn[style].paintfn)
 212                     (btnfn[style].paintfn)(hWnd);
 213                 break;
 214
 215         case WM_LBUTTONDOWN:
 216                 if (btnfn[style].lButtonDownfn)
 217                     (btnfn[style].lButtonDownfn)(hWnd, wParam, lParam);
 218                 break;
 219
 220         case WM_LBUTTONUP:
 221                 if (btnfn[style].lButtonUpfn)
 222                     (btnfn[style].lButtonUpfn)(hWnd, wParam, lParam);
 223                 break;
 224
 225         case WM_LBUTTONDBLCLK:
 226                 if (btnfn[style].lButtonDblClkfn)
 227                     (btnfn[style].lButtonDblClkfn)(hWnd, wParam, lParam);
 228                 break;
 229
 230         case WM_SETFOCUS:
 231                 break;
 232
 233         case WM_KILLFOCUS:
 234                 if (btnfn[style].killFocusfn)
 235                     (btnfn[style].killFocusfn)(hWnd);
 236                 break;
 237
 238         case WM_SYSCOLORCHANGE:
 239                 InvalidateRect(hWnd, NULL, TRUE);
 240                 break;
 241
 242         case BM_SETCHECK:
 243                 if (btnfn[style].setCheckfn)
 244                     (btnfn[style].setCheckfn)(hWnd, wParam);
 245                 break;
 246
 247         case BM_GETCHECK:
 248                 if (btnfn[style].getCheckfn)
 249                     return (btnfn[style].getCheckfn)(hWnd);
 250                 break;
 251
 252         default:
 253                 lResult = DefWindowProc(hWnd, uMsg, wParam, lParam);
 254                 break;
 255         }
 256
 257         return lResult;
 258 }
 259
 260
 261 /**********************************************************************
 262  *       Push Button Functions
 263  */
 264
 265 static LONG PB_Paint(HWND hWnd)
 266 {
 267     PAINTSTRUCT ps;
 268     RECT rc;
 269     HDC hDC;
 270
 271     hDC = BeginPaint(hWnd, &ps);
 272     GetClientRect(hWnd, &rc);
 273     if (pressed)
 274         DrawPressedPushButton(hDC, hWnd, rc);
 275     else
 276         DrawRaisedPushButton(hDC, hWnd, rc);
 277     EndPaint(hWnd, &ps);
 278 }
 279
 280 static LONG PB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 281 {
 282     SetFocus(hWnd);
 283     SetCapture(hWnd);
 284     pressed = TRUE;
 285     InvalidateRect(hWnd, NULL, FALSE);
 286     UpdateWindow(hWnd);
 287 }
 288
 289 static LONG PB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 290 {
 291     RECT rc;
 292
 293     pressed = FALSE;
 294     ReleaseCapture();
 295     GetClientRect(hWnd, &rc);
 296     if (PtInRect(&rc, MAKEPOINT(lParam)))
 297         NOTIFY_PARENT(hWnd, BN_CLICKED);
 298     InvalidateRect(hWnd, NULL, FALSE);
 299     UpdateWindow(hWnd);
 300 }
 301
 302 static LONG PB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 303 {
 304     RECT rc;
 305
 306     GetClientRect(hWnd, &rc);
 307     if (PtInRect(&rc, MAKEPOINT(lParam)))
 308         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 309 }
 310
 311 static LONG PB_KillFocus(HWND hWnd)
 312 {
 313     pressed = FALSE;
 314     InvalidateRect(hWnd, NULL, FALSE);
 315     UpdateWindow(hWnd);
 316 }
 317
 318 static void DrawRaisedPushButton(HDC hDC, HWND hButton, RECT rc)
 319 {
 320         HPEN hOldPen;
 321         HBRUSH hOldBrush;
 322         HRGN rgn1, rgn2, rgn;
 323         int len;
 324         static char text[50+1];
 325         POINT points[6];
 326         DWORD dwTextSize;
 327         int delta;
 328         TEXTMETRIC tm;
 329
 330         hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowFrame);
 331         hOldBrush = (HBRUSH)SelectObject(hDC, sysColorObjects.hbrushBtnFace);
 332         SetBkMode(hDC, TRANSPARENT);
 333
 334         rgn = CreateRectRgn(0, 0,  0,  0);
 335         rgn1 = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
 336
 337         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 338                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 339         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 340
 341         /* draw button label, if any: */
 342         len = GetWindowText(hButton, text, sizeof text);
 343         if (len >= 1) {
 344                 rc.left--;      rc.bottom--;
 345                 DrawText(hDC, text, len, &rc,
 346                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 347         }
 348
 349         /* draw button highlight */
 350         points[0].x = rc.left+2;
 351         points[0].y = rc.bottom;
 352         points[1].x = rc.left+4;
 353         points[1].y = rc.bottom-2;
 354         points[2].x = rc.left+4;
 355         points[2].y = rc.top+3;
 356         points[3].x = rc.right-3;
 357         points[3].y = rc.top+3;
 358         points[4].x = rc.right-1;
 359         points[4].y = rc.top+1;
 360         points[5].x = rc.left+2;
 361         points[5].y = rc.top+1;
 362         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 363         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 364         FillRgn(hDC, rgn2, sysColorObjects.hbrushBtnHighlight);
 365
 366         /* draw button shadow: */
 367         points[0].x = rc.left+2;
 368         points[0].y = rc.bottom;
 369         points[1].x = rc.left+4;
 370         points[1].y = rc.bottom-2;
 371         points[2].x = rc.right-3;
 372         points[2].y = rc.bottom-2;
 373         points[3].x = rc.right-3;
 374         points[3].y = rc.top+3;
 375         points[4].x = rc.right-1;
 376         points[4].y = rc.top;
 377         points[5].x = rc.right-1;
 378         points[5].y = rc.bottom;
 379         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 380         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 381         FillRgn(hDC, rgn2, sysColorObjects.hbrushBtnShadow);
 382
 383         /* do we have the focus? */
 384         if (len >= 1 && GetFocus() == hButton) {
 385                 dwTextSize = GetTextExtent(hDC, text, len);
 386                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 387                 rc.left += delta;       rc.right -= delta;
 388                 GetTextMetrics(hDC, &tm);
 389                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 390                 rc.top += delta;        rc.bottom -= delta;
 391                 DrawFocusRect(hDC, &rc);
 392         }
 393
 394         SelectObject(hDC, (HANDLE)hOldPen);
 395         SelectObject(hDC, (HANDLE)hOldBrush);
 396         DeleteObject((HANDLE)rgn1);
 397         DeleteObject((HANDLE)rgn2);
 398         DeleteObject((HANDLE)rgn);
 399 }
 400
 401
 402 static void DrawPressedPushButton(HDC hDC, HWND hButton, RECT rc)
 403 {
 404         HPEN hOldPen;
 405         HBRUSH hOldBrush;
 406         int len;
 407         static char text[50+1];
 408         DWORD dwTextSize;
 409         int delta;
 410         TEXTMETRIC tm;
 411
 412         hOldBrush = (HBRUSH)SelectObject(hDC, sysColorObjects.hbrushBtnFace);
 413         hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowFrame);
 414         SetBkMode(hDC, TRANSPARENT);
 415
 416         /* give parent a chance to alter parameters: */
 417         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 418                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 419         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 420
 421         /* draw button shadow: */
 422         SelectObject(hDC, sysColorObjects.hbrushBtnShadow );
 423         PatBlt(hDC, rc.left+1, rc.top+1, 1, rc.bottom-rc.top-2, PATCOPY );
 424         PatBlt(hDC, rc.left+1, rc.top+1, rc.right-rc.left-2, 1, PATCOPY );
 425
 426         /* draw button label, if any: */
 427         len = GetWindowText(hButton, text, sizeof text);
 428         if (len >= 1) {
 429                 rc.top++;       rc.left++;
 430                 DrawText(hDC, text, len, &rc,
 431                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 432         }
 433
 434         /* do we have the focus? */
 435         if (len >= 1 && GetFocus() == hButton) {
 436                 dwTextSize = GetTextExtent(hDC, text, len);
 437                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 438                 rc.left += delta;       rc.right -= delta;
 439                 GetTextMetrics(hDC, &tm);
 440                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 441                 rc.top += delta;        rc.bottom -= delta;
 442                 DrawFocusRect(hDC, &rc);
 443         }
 444
 445         SelectObject(hDC, (HANDLE)hOldPen);
 446         SelectObject(hDC, (HANDLE)hOldBrush);
 447 }
 448
 449
 450 /**********************************************************************
 451  *       Check Box Functions
 452  */
 453
 454 static LONG CB_Paint(HWND hWnd)
 455 {
 456     PAINTSTRUCT ps;
 457     RECT rc, rc3;
 458     HDC hDC;
 459     HPEN hOldPen;
 460     HBRUSH hBrush, hGrayBrush;
 461     int textlen, delta;
 462     char *text;
 463     HANDLE hText;
 464     TEXTMETRIC tm;
 465     SIZE size;
 466     WND *wndPtr = WIN_FindWndPtr(hWnd);
 467
 468     hDC = BeginPaint(hWnd, &ps);
 469     GetClientRect(hWnd, &rc);
 470
 471     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 472     hGrayBrush = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
 473
 474     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 475                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 476     FillRect(hDC, &rc, hBrush);
 477
 478     textlen = GetWindowTextLength(hWnd);
 479     hText = USER_HEAP_ALLOC(0, textlen+1);
 480     text = USER_HEAP_ADDR(hText);
 481     GetWindowText(hWnd, text, textlen+1);
 482     GetTextMetrics(hDC, &tm);
 483
 484     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 485     Rectangle(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 486     if (pressed)
 487         Rectangle(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 488                                               tm.tmHeight + delta - 1);
 489
 490     switch ((WORD)(*(wndPtr->wExtra)))
 491     {
 492     case 1:
 493         MoveTo(hDC, 0, rc.top + delta);
 494         LineTo(hDC, tm.tmHeight - 1, tm.tmHeight + delta - 1);
 495         MoveTo(hDC, 0, tm.tmHeight + delta - 1);
 496         LineTo(hDC, tm.tmHeight - 1, rc.top + delta);
 497         break;
 498
 499     case 2:
 500         rc3.left = 1;
 501         rc3.top = rc.top + delta + 1;
 502         rc3.right = tm.tmHeight - 1;
 503         rc3.bottom = tm.tmHeight + delta - 1;
 504         FillRect(hDC, &rc3, hGrayBrush);
 505         break;
 506     }
 507
 508     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 509     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 510
 511     /* do we have the focus? */
 512     if (GetFocus() == hWnd)
 513     {
 514         GetTextExtentPoint(hDC, text, textlen, &size);
 515         rc.top += delta - 1;
 516         rc.bottom -= delta + 1;
 517         rc.left--;
 518         rc.right = rc.left + size.cx + 2;
 519         DrawFocusRect(hDC, &rc);
 520     }
 521
 522     SelectObject(hDC, hOldPen);
 523     USER_HEAP_FREE(hText);
 524     EndPaint(hWnd, &ps);
 525 }
 526
 527 static LONG CB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 528 {
 529     RECT rc;
 530     HDC hDC;
 531     TEXTMETRIC tm;
 532     int delta;
 533
 534     hDC = GetDC(hWnd);
 535     GetTextMetrics(hDC, &tm);
 536     ReleaseDC(hWnd, hDC);
 537     GetClientRect(hWnd, &rc);
 538     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 539     rc.top += delta;
 540     rc.bottom = tm.tmHeight + delta;
 541     if (PtInRect(&rc, MAKEPOINT(lParam)))
 542     {
 543         SetFocus(hWnd);
 544         SetCapture(hWnd);
 545         pressed = TRUE;
 546         InvalidateRect(hWnd, NULL, FALSE);
 547         UpdateWindow(hWnd);
 548     }
 549 }
 550
 551 static LONG CB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 552 {
 553     RECT rc;
 554     HDC hDC;
 555     TEXTMETRIC tm;
 556     int delta;
 557     WND *wndPtr = WIN_FindWndPtr(hWnd);
 558     LONG style;
 559
 560     pressed = FALSE;
 561     ReleaseCapture();
 562     hDC = GetDC(hWnd);
 563     GetTextMetrics(hDC, &tm);
 564     ReleaseDC(hWnd, hDC);
 565     GetClientRect(hWnd, &rc);
 566     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 567     rc.top += delta;
 568     rc.bottom = tm.tmHeight + delta;
 569
 570     if (PtInRect(&rc, MAKEPOINT(lParam)))
 571     {
 572         style = wndPtr->dwStyle & 0x0000000F;
 573         if (style == BS_AUTOCHECKBOX)
 574         {
 575             switch ((WORD)(*(wndPtr->wExtra)))
 576             {
 577             case 0:
 578                 (WORD)(*(wndPtr->wExtra)) = 1;
 579                 break;
 580
 581             case 1:
 582                 (WORD)(*(wndPtr->wExtra)) = 0;
 583                 break;
 584             }
 585         }
 586         else if (style == BS_AUTO3STATE)
 587         {
 588             switch ((WORD)(*(wndPtr->wExtra)))
 589             {
 590             case 0:
 591                 (WORD)(*(wndPtr->wExtra)) = 1;
 592                 break;
 593
 594             case 1:
 595                 (WORD)(*(wndPtr->wExtra)) = 2;
 596                 break;
 597
 598             case 2:
 599                 (WORD)(*(wndPtr->wExtra)) = 0;
 600                 break;
 601             }
 602         }
 603         NOTIFY_PARENT(hWnd, BN_CLICKED);
 604     }
 605     InvalidateRect(hWnd, NULL, FALSE);
 606     UpdateWindow(hWnd);
 607 }
 608
 609 static LONG CB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 610 {
 611     RECT rc;
 612     HDC hDC;
 613     TEXTMETRIC tm;
 614     int delta;
 615
 616     hDC = GetDC(hWnd);
 617     GetTextMetrics(hDC, &tm);
 618     ReleaseDC(hWnd, hDC);
 619     GetClientRect(hWnd, &rc);
 620     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 621     rc.top += delta;
 622     rc.bottom = tm.tmHeight + delta;
 623     if (PtInRect(&rc, MAKEPOINT(lParam)))
 624         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 625 }
 626
 627 static LONG CB_KillFocus(HWND hWnd)
 628 {
 629     pressed = FALSE;
 630     InvalidateRect(hWnd, NULL, FALSE);
 631     UpdateWindow(hWnd);
 632 }
 633
 634 static LONG CB_SetCheck(HWND hWnd, WORD wParam)
 635 {
 636     WND *wndPtr = WIN_FindWndPtr(hWnd);
 637
 638     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 639     {
 640         (WORD)(*(wndPtr->wExtra)) = wParam;
 641         InvalidateRect(hWnd, NULL, FALSE);
 642         UpdateWindow(hWnd);
 643     }
 644 }
 645
 646 static LONG CB_GetCheck(HWND hWnd)
 647 {
 648     WORD wResult;
 649     WND *wndPtr = WIN_FindWndPtr(hWnd);
 650
 651     wResult = (WORD)(*(wndPtr->wExtra));
 652     return (LONG)wResult;
 653 }
 654
 655
 656 /**********************************************************************
 657  *       Radio Button Functions
 658  */
 659
 660 static LONG RB_Paint(HWND hWnd)
 661 {
 662     PAINTSTRUCT ps;
 663     RECT rc;
 664     HDC hDC;
 665     HPEN hOldPen;
 666     HBRUSH hBrush, hOldBrush;
 667     int textlen, delta;
 668     char *text;
 669     HANDLE hText;
 670     TEXTMETRIC tm;
 671     SIZE size;
 672     WND *wndPtr = WIN_FindWndPtr(hWnd);
 673
 674     hDC = BeginPaint(hWnd, &ps);
 675     GetClientRect(hWnd, &rc);
 676
 677     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 678
 679     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 680                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 681     FillRect(hDC, &rc, hBrush);
 682
 683     textlen = GetWindowTextLength(hWnd);
 684     hText = USER_HEAP_ALLOC(0, textlen+1);
 685     text = USER_HEAP_ADDR(hText);
 686     GetWindowText(hWnd, text, textlen+1);
 687     GetTextMetrics(hDC, &tm);
 688
 689     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 690     Ellipse(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 691     if (pressed)
 692         Ellipse(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 693                                               tm.tmHeight + delta - 1);
 694
 695     if ((WORD)(*(wndPtr->wExtra)) == 1)
 696     {
 697         hBrush = CreateSolidBrush( GetNearestColor(hDC, GetSysColor(COLOR_WINDOWTEXT)));
 698         hOldBrush = (HBRUSH)SelectObject(hDC, (HANDLE)hBrush);
 699         Ellipse(hDC, 3, rc.top + delta + 3, tm.tmHeight - 3,
 700                                             tm.tmHeight + delta -3);
 701         SelectObject(hDC, (HANDLE)hOldBrush);
 702         DeleteObject((HANDLE)hBrush);
 703     }
 704
 705     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 706     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 707
 708     /* do we have the focus? */
 709     if (GetFocus() == hWnd)
 710     {
 711         GetTextExtentPoint(hDC, text, textlen, &size);
 712         rc.top += delta - 1;
 713         rc.bottom -= delta + 1;
 714         rc.left--;
 715         rc.right = rc.left + size.cx + 2;
 716         DrawFocusRect(hDC, &rc);
 717     }
 718
 719     SelectObject(hDC, hOldPen );
 720     USER_HEAP_FREE(hText);
 721     EndPaint(hWnd, &ps);
 722 }
 723
 724 static LONG RB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 725 {
 726     RECT rc;
 727     HDC hDC;
 728     TEXTMETRIC tm;
 729     int delta;
 730
 731     hDC = GetDC(hWnd);
 732     GetTextMetrics(hDC, &tm);
 733     ReleaseDC(hWnd, hDC);
 734     GetClientRect(hWnd, &rc);
 735     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 736     rc.top += delta;
 737     rc.bottom = tm.tmHeight + delta;
 738     if (PtInRect(&rc, MAKEPOINT(lParam)))
 739     {
 740         SetFocus(hWnd);
 741         SetCapture(hWnd);
 742         pressed = TRUE;
 743         InvalidateRect(hWnd, NULL, FALSE);
 744         UpdateWindow(hWnd);
 745     }
 746 }
 747
 748 static LONG RB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 749 {
 750     RECT rc;
 751     HDC hDC;
 752     TEXTMETRIC tm;
 753     int delta;
 754     WND *wndPtr = WIN_FindWndPtr(hWnd);
 755     LONG style;
 756
 757     pressed = FALSE;
 758     ReleaseCapture();
 759     hDC = GetDC(hWnd);
 760     GetTextMetrics(hDC, &tm);
 761     ReleaseDC(hWnd, hDC);
 762     GetClientRect(hWnd, &rc);
 763     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 764     rc.top += delta;
 765     rc.bottom = tm.tmHeight + delta;
 766
 767     if (PtInRect(&rc, MAKEPOINT(lParam)))
 768     {
 769         style = wndPtr->dwStyle & 0x0000000F;
 770         if (style == BS_AUTORADIOBUTTON)
 771             (WORD)(*(wndPtr->wExtra)) = 1;
 772         NOTIFY_PARENT(hWnd, BN_CLICKED);
 773     }
 774     InvalidateRect(hWnd, NULL, FALSE);
 775     UpdateWindow(hWnd);
 776 }
 777
 778 static LONG RB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 779 {
 780     RECT rc;
 781     HDC hDC;
 782     TEXTMETRIC tm;
 783     int delta;
 784
 785     hDC = GetDC(hWnd);
 786     GetTextMetrics(hDC, &tm);
 787     ReleaseDC(hWnd, hDC);
 788     GetClientRect(hWnd, &rc);
 789     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 790     rc.top += delta;
 791     rc.bottom = tm.tmHeight + delta;
 792     if (PtInRect(&rc, MAKEPOINT(lParam)))
 793         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 794 }
 795
 796 static LONG RB_KillFocus(HWND hWnd)
 797 {
 798     pressed = FALSE;
 799     InvalidateRect(hWnd, NULL, FALSE);
 800     UpdateWindow(hWnd);
 801 }
 802
 803 static LONG RB_SetCheck(HWND hWnd, WORD wParam)
 804 {
 805     WND *wndPtr = WIN_FindWndPtr(hWnd);
 806
 807     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 808     {
 809         (WORD)(*(wndPtr->wExtra)) = wParam;
 810         InvalidateRect(hWnd, NULL, FALSE);
 811         UpdateWindow(hWnd);
 812     }
 813 }
 814
 815 static LONG RB_GetCheck(HWND hWnd)
 816 {
 817     WORD wResult;
 818     WND *wndPtr = WIN_FindWndPtr(hWnd);
 819
 820     wResult = (WORD)(*(wndPtr->wExtra));
 821     return (LONG)wResult;
 822 }
 823
 824
 825 /**********************************************************************
 826  *       Group Box Functions
 827  */
 828
 829 static LONG GB_Paint(HWND hWnd)
 830 {
 831     PAINTSTRUCT ps;
 832     RECT rc;
 833     HDC hDC;
 834     HPEN hOldPen;
 835     HBRUSH hBrush;
 836     int textlen;
 837     char *text;
 838     HANDLE hText;
 839     SIZE size;
 840
 841     hDC = BeginPaint(hWnd, &ps);
 842     GetClientRect(hWnd, &rc);
 843
 844     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 845
 846     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 847                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 848     FillRect(hDC, &rc, hBrush);
 849
 850     textlen = GetWindowTextLength(hWnd);
 851     hText = USER_HEAP_ALLOC(0, textlen+1);
 852     text = USER_HEAP_ADDR(hText);
 853     GetWindowText(hWnd, text, textlen+1);
 854     GetTextExtentPoint(hDC, text, textlen, &size);
 855
 856     rc.top = 5;
 857     Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 858     rc.left = 10;
 859     rc.top = 0;
 860     rc.right = rc.left + size.cx + 1;
 861     rc.bottom = size.cy;
 862     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE);
 863
 864     SelectObject(hDC, hOldPen );
 865     USER_HEAP_FREE(hText);
 866     EndPaint(hWnd, &ps);
 867 }
 868
 869
 870 /**********************************************************************
 871  *       User Button Functions
 872  */
 873
 874 static LONG UB_Paint(HWND hWnd)
 875 {
 876     PAINTSTRUCT ps;
 877     HDC hDC;
 878     RECT rc;
 879     HBRUSH hBrush;
 880
 881     hDC = BeginPaint(hWnd, &ps);
 882     GetClientRect(hWnd, &rc);
 883
 884     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 885                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 886     FillRect(hDC, &rc, hBrush);
 887
 888     NOTIFY_PARENT(hWnd, BN_PAINT);
 889
 890     /* do we have the focus? */
 891     if (GetFocus() == hWnd)
 892         DrawFocusRect(hDC, &rc);
 893
 894     EndPaint(hWnd, &ps);
 895 }
 896
 897 static LONG UB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 898 {
 899     RECT rc;
 900
 901     SetFocus(hWnd);
 902     SetCapture(hWnd);
 903     GetClientRect(hWnd, &rc);
 904     if (PtInRect(&rc, MAKEPOINT(lParam)))
 905         NOTIFY_PARENT(hWnd, BN_HILITE);
 906     InvalidateRect(hWnd, NULL, FALSE);
 907     UpdateWindow(hWnd);
 908 }
 909
 910 static LONG UB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 911 {
 912     RECT rc;
 913
 914     ReleaseCapture();
 915     GetClientRect(hWnd, &rc);
 916     if (PtInRect(&rc, MAKEPOINT(lParam)))
 917     {
 918         NOTIFY_PARENT(hWnd, BN_CLICKED);
 919         NOTIFY_PARENT(hWnd, BN_UNHILITE);
 920     }
 921     InvalidateRect(hWnd, NULL, FALSE);
 922     UpdateWindow(hWnd);
 923 }
 924
 925 static LONG UB_KillFocus(HWND hWnd)
 926 {
 927     InvalidateRect(hWnd, NULL, FALSE);
 928     UpdateWindow(hWnd);
 929 }
 930
 931
 932 /**********************************************************************
 933  *       Ownerdrawn Button Functions
 934  */
 935
 936 static LONG OB_Paint(HWND hWnd)
 937 {
 938     PAINTSTRUCT ps;
 939     HDC         hDC;
 940     RECT        rc;
 941     HANDLE      hDis;
 942     LPDRAWITEMSTRUCT lpdis;
 943     WND *wndPtr = WIN_FindWndPtr(hWnd);
 944     hDC = BeginPaint(hWnd, &ps);
 945     GetClientRect(hWnd, &rc);
 946     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
 947     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
 948     lpdis->hDC = hDC;
 949     lpdis->itemID = 0;
 950     CopyRect(&lpdis->rcItem, &rc);
 951     lpdis->CtlID = wndPtr->wIDmenu;
 952     lpdis->CtlType = ODT_BUTTON;
 953     lpdis->itemAction = ODA_DRAWENTIRE;
 954 /*    printf("ownerdrawn button WM_DRAWITEM CtrlID=%X\n", lpdis->CtlID);*/
 955     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
 956     USER_HEAP_FREE(hDis);
 957     EndPaint(hWnd, &ps);
 958 }
 959
 960 static LONG OB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 961 {
 962     HDC         hDC;
 963     RECT        rc;
 964     HANDLE      hDis;
 965     LPDRAWITEMSTRUCT lpdis;
 966     WND *wndPtr = WIN_FindWndPtr(hWnd);
 967     SetFocus(hWnd);
 968     SetCapture(hWnd);
 969     hDC = GetDC(hWnd);
 970     GetClientRect(hWnd, &rc);
 971     if (PtInRect(&rc, MAKEPOINT(lParam)))
 972         NOTIFY_PARENT(hWnd, BN_CLICKED);
 973     GetClientRect(hWnd, &rc);
 974     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
 975     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
 976     lpdis->hDC = hDC;
 977     lpdis->itemID = 0;
 978     CopyRect(&lpdis->rcItem, &rc);
 979     lpdis->CtlID = wndPtr->wIDmenu;
 980     lpdis->CtlType = ODT_BUTTON;
 981     lpdis->itemAction = ODA_SELECT;
 982     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
 983     USER_HEAP_FREE(hDis);
 984     ReleaseDC(hWnd, hDC);
 985 }
 986
 987 static LONG OB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 988 {
 989     HDC         hDC;
 990     RECT        rc;
 991     HANDLE      hDis;
 992     LPDRAWITEMSTRUCT lpdis;
 993     WND *wndPtr = WIN_FindWndPtr(hWnd);
 994     ReleaseCapture();
 995     hDC = GetDC(hWnd);
 996     GetClientRect(hWnd, &rc);
 997     if (PtInRect(&rc, MAKEPOINT(lParam)))
 998         NOTIFY_PARENT(hWnd, BN_CLICKED);
 999     GetClientRect(hWnd, &rc);
1000     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
1001     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
1002     lpdis->hDC = hDC;
1003     lpdis->itemID = 0;
1004     CopyRect(&lpdis->rcItem, &rc);
1005     lpdis->CtlID = wndPtr->wIDmenu;
1006     lpdis->CtlType = ODT_BUTTON;
1007     lpdis->itemAction = ODA_SELECT;
1008     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
1009     USER_HEAP_FREE(hDis);
1010     ReleaseDC(hWnd, hDC);
1011 }
1012
1013 static LONG OB_KillFocus(HWND hWnd)
1014 {
1015     InvalidateRect(hWnd, NULL, FALSE);
1016     UpdateWindow(hWnd);
1017 }
1018