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         GlobalUnlock(hWnd);
 258         return lResult;
 259 }
 260
 261
 262 /**********************************************************************
 263  *       Push Button Functions
 264  */
 265
 266 static LONG PB_Paint(HWND hWnd)
 267 {
 268     PAINTSTRUCT ps;
 269     RECT rc;
 270     HDC hDC;
 271
 272     hDC = BeginPaint(hWnd, &ps);
 273     GetClientRect(hWnd, &rc);
 274     if (pressed)
 275         DrawPressedPushButton(hDC, hWnd, rc);
 276     else
 277         DrawRaisedPushButton(hDC, hWnd, rc);
 278     EndPaint(hWnd, &ps);
 279 }
 280
 281 static LONG PB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 282 {
 283     SetFocus(hWnd);
 284     SetCapture(hWnd);
 285     pressed = TRUE;
 286     InvalidateRect(hWnd, NULL, FALSE);
 287     UpdateWindow(hWnd);
 288 }
 289
 290 static LONG PB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 291 {
 292     RECT rc;
 293
 294     pressed = FALSE;
 295     ReleaseCapture();
 296     GetClientRect(hWnd, &rc);
 297     if (PtInRect(&rc, MAKEPOINT(lParam)))
 298         NOTIFY_PARENT(hWnd, BN_CLICKED);
 299     InvalidateRect(hWnd, NULL, FALSE);
 300     UpdateWindow(hWnd);
 301 }
 302
 303 static LONG PB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 304 {
 305     RECT rc;
 306
 307     GetClientRect(hWnd, &rc);
 308     if (PtInRect(&rc, MAKEPOINT(lParam)))
 309         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 310 }
 311
 312 static LONG PB_KillFocus(HWND hWnd)
 313 {
 314     pressed = FALSE;
 315     InvalidateRect(hWnd, NULL, FALSE);
 316     UpdateWindow(hWnd);
 317 }
 318
 319 static void DrawRaisedPushButton(HDC hDC, HWND hButton, RECT rc)
 320 {
 321         HPEN hOldPen;
 322         HBRUSH hOldBrush;
 323         HRGN rgn1, rgn2, rgn;
 324         int len;
 325         static char text[50+1];
 326         POINT points[6];
 327         DWORD dwTextSize;
 328         int delta;
 329         TEXTMETRIC tm;
 330
 331         hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowFrame);
 332         hOldBrush = (HBRUSH)SelectObject(hDC, sysColorObjects.hbrushBtnFace);
 333         SetBkMode(hDC, TRANSPARENT);
 334
 335         rgn = CreateRectRgn(0, 0,  0,  0);
 336         rgn1 = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
 337
 338         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 339                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 340         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 341
 342         /* draw button label, if any: */
 343         len = GetWindowText(hButton, text, sizeof text);
 344         if (len >= 1) {
 345                 rc.left--;      rc.bottom--;
 346                 DrawText(hDC, text, len, &rc,
 347                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 348         }
 349
 350         /* draw button highlight */
 351         points[0].x = rc.left+2;
 352         points[0].y = rc.bottom;
 353         points[1].x = rc.left+4;
 354         points[1].y = rc.bottom-2;
 355         points[2].x = rc.left+4;
 356         points[2].y = rc.top+3;
 357         points[3].x = rc.right-3;
 358         points[3].y = rc.top+3;
 359         points[4].x = rc.right-1;
 360         points[4].y = rc.top+1;
 361         points[5].x = rc.left+2;
 362         points[5].y = rc.top+1;
 363         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 364         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 365         FillRgn(hDC, rgn2, sysColorObjects.hbrushBtnHighlight);
 366
 367         /* draw button shadow: */
 368         points[0].x = rc.left+2;
 369         points[0].y = rc.bottom;
 370         points[1].x = rc.left+4;
 371         points[1].y = rc.bottom-2;
 372         points[2].x = rc.right-3;
 373         points[2].y = rc.bottom-2;
 374         points[3].x = rc.right-3;
 375         points[3].y = rc.top+3;
 376         points[4].x = rc.right-1;
 377         points[4].y = rc.top;
 378         points[5].x = rc.right-1;
 379         points[5].y = rc.bottom;
 380         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 381         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 382         FillRgn(hDC, rgn2, sysColorObjects.hbrushBtnShadow);
 383
 384         /* do we have the focus? */
 385         if (len >= 1 && GetFocus() == hButton) {
 386                 dwTextSize = GetTextExtent(hDC, text, len);
 387                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 388                 rc.left += delta;       rc.right -= delta;
 389                 GetTextMetrics(hDC, &tm);
 390                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 391                 rc.top += delta;        rc.bottom -= delta;
 392                 DrawFocusRect(hDC, &rc);
 393         }
 394
 395         SelectObject(hDC, (HANDLE)hOldPen);
 396         SelectObject(hDC, (HANDLE)hOldBrush);
 397         DeleteObject((HANDLE)rgn1);
 398         DeleteObject((HANDLE)rgn2);
 399         DeleteObject((HANDLE)rgn);
 400 }
 401
 402
 403 static void DrawPressedPushButton(HDC hDC, HWND hButton, RECT rc)
 404 {
 405         HPEN hOldPen;
 406         HBRUSH hOldBrush;
 407         int len;
 408         static char text[50+1];
 409         DWORD dwTextSize;
 410         int delta;
 411         TEXTMETRIC tm;
 412
 413         hOldBrush = (HBRUSH)SelectObject(hDC, sysColorObjects.hbrushBtnFace);
 414         hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowFrame);
 415         SetBkMode(hDC, TRANSPARENT);
 416
 417         /* give parent a chance to alter parameters: */
 418         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 419                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 420         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 421
 422         /* draw button shadow: */
 423         SelectObject(hDC, sysColorObjects.hbrushBtnShadow );
 424         PatBlt(hDC, rc.left+1, rc.top+1, 1, rc.bottom-rc.top-2, PATCOPY );
 425         PatBlt(hDC, rc.left+1, rc.top+1, rc.right-rc.left-2, 1, PATCOPY );
 426
 427         /* draw button label, if any: */
 428         len = GetWindowText(hButton, text, sizeof text);
 429         if (len >= 1) {
 430                 rc.top++;       rc.left++;
 431                 DrawText(hDC, text, len, &rc,
 432                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 433         }
 434
 435         /* do we have the focus? */
 436         if (len >= 1 && GetFocus() == hButton) {
 437                 dwTextSize = GetTextExtent(hDC, text, len);
 438                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 439                 rc.left += delta;       rc.right -= delta;
 440                 GetTextMetrics(hDC, &tm);
 441                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 442                 rc.top += delta;        rc.bottom -= delta;
 443                 DrawFocusRect(hDC, &rc);
 444         }
 445
 446         SelectObject(hDC, (HANDLE)hOldPen);
 447         SelectObject(hDC, (HANDLE)hOldBrush);
 448 }
 449
 450
 451 /**********************************************************************
 452  *       Check Box Functions
 453  */
 454
 455 static LONG CB_Paint(HWND hWnd)
 456 {
 457     PAINTSTRUCT ps;
 458     RECT rc, rc3;
 459     HDC hDC;
 460     HPEN hOldPen;
 461     HBRUSH hBrush, hGrayBrush;
 462     int textlen, delta;
 463     char *text;
 464     HANDLE hText;
 465     TEXTMETRIC tm;
 466     SIZE size;
 467     WND *wndPtr = WIN_FindWndPtr(hWnd);
 468
 469     hDC = BeginPaint(hWnd, &ps);
 470     GetClientRect(hWnd, &rc);
 471
 472     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 473     hGrayBrush = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
 474
 475     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 476                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 477     FillRect(hDC, &rc, hBrush);
 478
 479     textlen = GetWindowTextLength(hWnd);
 480     hText = USER_HEAP_ALLOC(0, textlen+1);
 481     text = USER_HEAP_ADDR(hText);
 482     GetWindowText(hWnd, text, textlen+1);
 483     GetTextMetrics(hDC, &tm);
 484
 485     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 486     Rectangle(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 487     if (pressed)
 488         Rectangle(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 489                                               tm.tmHeight + delta - 1);
 490
 491     switch ((WORD)(*(wndPtr->wExtra)))
 492     {
 493     case 1:
 494         MoveTo(hDC, 0, rc.top + delta);
 495         LineTo(hDC, tm.tmHeight - 1, tm.tmHeight + delta - 1);
 496         MoveTo(hDC, 0, tm.tmHeight + delta - 1);
 497         LineTo(hDC, tm.tmHeight - 1, rc.top + delta);
 498         break;
 499
 500     case 2:
 501         rc3.left = 1;
 502         rc3.top = rc.top + delta + 1;
 503         rc3.right = tm.tmHeight - 1;
 504         rc3.bottom = tm.tmHeight + delta - 1;
 505         FillRect(hDC, &rc3, hGrayBrush);
 506         break;
 507     }
 508
 509     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 510     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 511
 512     /* do we have the focus? */
 513     if (GetFocus() == hWnd)
 514     {
 515         GetTextExtentPoint(hDC, text, textlen, &size);
 516         rc.top += delta - 1;
 517         rc.bottom -= delta + 1;
 518         rc.left--;
 519         rc.right = rc.left + size.cx + 2;
 520         DrawFocusRect(hDC, &rc);
 521     }
 522
 523     SelectObject(hDC, hOldPen);
 524     USER_HEAP_FREE(hText);
 525     GlobalUnlock(hWnd);
 526     EndPaint(hWnd, &ps);
 527 }
 528
 529 static LONG CB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 530 {
 531     RECT rc;
 532     HDC hDC;
 533     TEXTMETRIC tm;
 534     int delta;
 535
 536     hDC = GetDC(hWnd);
 537     GetTextMetrics(hDC, &tm);
 538     ReleaseDC(hWnd, hDC);
 539     GetClientRect(hWnd, &rc);
 540     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 541     rc.top += delta;
 542     rc.bottom = tm.tmHeight + delta;
 543     if (PtInRect(&rc, MAKEPOINT(lParam)))
 544     {
 545         SetFocus(hWnd);
 546         SetCapture(hWnd);
 547         pressed = TRUE;
 548         InvalidateRect(hWnd, NULL, FALSE);
 549         UpdateWindow(hWnd);
 550     }
 551 }
 552
 553 static LONG CB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 554 {
 555     RECT rc;
 556     HDC hDC;
 557     TEXTMETRIC tm;
 558     int delta;
 559     WND *wndPtr = WIN_FindWndPtr(hWnd);
 560     LONG style;
 561
 562     pressed = FALSE;
 563     ReleaseCapture();
 564     hDC = GetDC(hWnd);
 565     GetTextMetrics(hDC, &tm);
 566     ReleaseDC(hWnd, hDC);
 567     GetClientRect(hWnd, &rc);
 568     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 569     rc.top += delta;
 570     rc.bottom = tm.tmHeight + delta;
 571
 572     if (PtInRect(&rc, MAKEPOINT(lParam)))
 573     {
 574         style = wndPtr->dwStyle & 0x0000000F;
 575         if (style == BS_AUTOCHECKBOX)
 576         {
 577             switch ((WORD)(*(wndPtr->wExtra)))
 578             {
 579             case 0:
 580                 (WORD)(*(wndPtr->wExtra)) = 1;
 581                 break;
 582
 583             case 1:
 584                 (WORD)(*(wndPtr->wExtra)) = 0;
 585                 break;
 586             }
 587         }
 588         else if (style == BS_AUTO3STATE)
 589         {
 590             switch ((WORD)(*(wndPtr->wExtra)))
 591             {
 592             case 0:
 593                 (WORD)(*(wndPtr->wExtra)) = 1;
 594                 break;
 595
 596             case 1:
 597                 (WORD)(*(wndPtr->wExtra)) = 2;
 598                 break;
 599
 600             case 2:
 601                 (WORD)(*(wndPtr->wExtra)) = 0;
 602                 break;
 603             }
 604         }
 605         NOTIFY_PARENT(hWnd, BN_CLICKED);
 606     }
 607     GlobalUnlock(hWnd);
 608     InvalidateRect(hWnd, NULL, FALSE);
 609     UpdateWindow(hWnd);
 610 }
 611
 612 static LONG CB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 613 {
 614     RECT rc;
 615     HDC hDC;
 616     TEXTMETRIC tm;
 617     int delta;
 618
 619     hDC = GetDC(hWnd);
 620     GetTextMetrics(hDC, &tm);
 621     ReleaseDC(hWnd, hDC);
 622     GetClientRect(hWnd, &rc);
 623     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 624     rc.top += delta;
 625     rc.bottom = tm.tmHeight + delta;
 626     if (PtInRect(&rc, MAKEPOINT(lParam)))
 627         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 628 }
 629
 630 static LONG CB_KillFocus(HWND hWnd)
 631 {
 632     pressed = FALSE;
 633     InvalidateRect(hWnd, NULL, FALSE);
 634     UpdateWindow(hWnd);
 635 }
 636
 637 static LONG CB_SetCheck(HWND hWnd, WORD wParam)
 638 {
 639     WND *wndPtr = WIN_FindWndPtr(hWnd);
 640
 641     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 642     {
 643         (WORD)(*(wndPtr->wExtra)) = wParam;
 644         InvalidateRect(hWnd, NULL, FALSE);
 645         UpdateWindow(hWnd);
 646     }
 647     GlobalUnlock(hWnd);
 648 }
 649
 650 static LONG CB_GetCheck(HWND hWnd)
 651 {
 652     WORD wResult;
 653     WND *wndPtr = WIN_FindWndPtr(hWnd);
 654
 655     wResult = (WORD)(*(wndPtr->wExtra));
 656     GlobalUnlock(hWnd);
 657     return (LONG)wResult;
 658 }
 659
 660
 661 /**********************************************************************
 662  *       Radio Button Functions
 663  */
 664
 665 static LONG RB_Paint(HWND hWnd)
 666 {
 667     PAINTSTRUCT ps;
 668     RECT rc;
 669     HDC hDC;
 670     HPEN hOldPen;
 671     HBRUSH hBrush, hOldBrush;
 672     int textlen, delta;
 673     char *text;
 674     HANDLE hText;
 675     TEXTMETRIC tm;
 676     SIZE size;
 677     WND *wndPtr = WIN_FindWndPtr(hWnd);
 678
 679     hDC = BeginPaint(hWnd, &ps);
 680     GetClientRect(hWnd, &rc);
 681
 682     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 683
 684     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 685                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 686     FillRect(hDC, &rc, hBrush);
 687
 688     textlen = GetWindowTextLength(hWnd);
 689     hText = USER_HEAP_ALLOC(0, textlen+1);
 690     text = USER_HEAP_ADDR(hText);
 691     GetWindowText(hWnd, text, textlen+1);
 692     GetTextMetrics(hDC, &tm);
 693
 694     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 695     Ellipse(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 696     if (pressed)
 697         Ellipse(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 698                                               tm.tmHeight + delta - 1);
 699
 700     if ((WORD)(*(wndPtr->wExtra)) == 1)
 701     {
 702         hBrush = CreateSolidBrush( GetNearestColor(hDC, GetSysColor(COLOR_WINDOWTEXT)));
 703         hOldBrush = (HBRUSH)SelectObject(hDC, (HANDLE)hBrush);
 704         Ellipse(hDC, 3, rc.top + delta + 3, tm.tmHeight - 3,
 705                                             tm.tmHeight + delta -3);
 706         SelectObject(hDC, (HANDLE)hOldBrush);
 707         DeleteObject((HANDLE)hBrush);
 708     }
 709
 710     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 711     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 712
 713     /* do we have the focus? */
 714     if (GetFocus() == hWnd)
 715     {
 716         GetTextExtentPoint(hDC, text, textlen, &size);
 717         rc.top += delta - 1;
 718         rc.bottom -= delta + 1;
 719         rc.left--;
 720         rc.right = rc.left + size.cx + 2;
 721         DrawFocusRect(hDC, &rc);
 722     }
 723
 724     SelectObject(hDC, hOldPen );
 725     USER_HEAP_FREE(hText);
 726     GlobalUnlock(hWnd);
 727     EndPaint(hWnd, &ps);
 728 }
 729
 730 static LONG RB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 731 {
 732     RECT rc;
 733     HDC hDC;
 734     TEXTMETRIC tm;
 735     int delta;
 736
 737     hDC = GetDC(hWnd);
 738     GetTextMetrics(hDC, &tm);
 739     ReleaseDC(hWnd, hDC);
 740     GetClientRect(hWnd, &rc);
 741     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 742     rc.top += delta;
 743     rc.bottom = tm.tmHeight + delta;
 744     if (PtInRect(&rc, MAKEPOINT(lParam)))
 745     {
 746         SetFocus(hWnd);
 747         SetCapture(hWnd);
 748         pressed = TRUE;
 749         InvalidateRect(hWnd, NULL, FALSE);
 750         UpdateWindow(hWnd);
 751     }
 752 }
 753
 754 static LONG RB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 755 {
 756     RECT rc;
 757     HDC hDC;
 758     TEXTMETRIC tm;
 759     int delta;
 760     WND *wndPtr = WIN_FindWndPtr(hWnd);
 761     LONG style;
 762
 763     pressed = FALSE;
 764     ReleaseCapture();
 765     hDC = GetDC(hWnd);
 766     GetTextMetrics(hDC, &tm);
 767     ReleaseDC(hWnd, hDC);
 768     GetClientRect(hWnd, &rc);
 769     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 770     rc.top += delta;
 771     rc.bottom = tm.tmHeight + delta;
 772
 773     if (PtInRect(&rc, MAKEPOINT(lParam)))
 774     {
 775         style = wndPtr->dwStyle & 0x0000000F;
 776         if (style == BS_AUTORADIOBUTTON)
 777             (WORD)(*(wndPtr->wExtra)) = 1;
 778         NOTIFY_PARENT(hWnd, BN_CLICKED);
 779     }
 780     GlobalUnlock(hWnd);
 781     InvalidateRect(hWnd, NULL, FALSE);
 782     UpdateWindow(hWnd);
 783 }
 784
 785 static LONG RB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 786 {
 787     RECT rc;
 788     HDC hDC;
 789     TEXTMETRIC tm;
 790     int delta;
 791
 792     hDC = GetDC(hWnd);
 793     GetTextMetrics(hDC, &tm);
 794     ReleaseDC(hWnd, hDC);
 795     GetClientRect(hWnd, &rc);
 796     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 797     rc.top += delta;
 798     rc.bottom = tm.tmHeight + delta;
 799     if (PtInRect(&rc, MAKEPOINT(lParam)))
 800         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 801 }
 802
 803 static LONG RB_KillFocus(HWND hWnd)
 804 {
 805     pressed = FALSE;
 806     InvalidateRect(hWnd, NULL, FALSE);
 807     UpdateWindow(hWnd);
 808 }
 809
 810 static LONG RB_SetCheck(HWND hWnd, WORD wParam)
 811 {
 812     WND *wndPtr = WIN_FindWndPtr(hWnd);
 813
 814     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 815     {
 816         (WORD)(*(wndPtr->wExtra)) = wParam;
 817         InvalidateRect(hWnd, NULL, FALSE);
 818         UpdateWindow(hWnd);
 819     }
 820     GlobalUnlock(hWnd);
 821 }
 822
 823 static LONG RB_GetCheck(HWND hWnd)
 824 {
 825     WORD wResult;
 826     WND *wndPtr = WIN_FindWndPtr(hWnd);
 827
 828     wResult = (WORD)(*(wndPtr->wExtra));
 829     GlobalUnlock(hWnd);
 830     return (LONG)wResult;
 831 }
 832
 833
 834 /**********************************************************************
 835  *       Group Box Functions
 836  */
 837
 838 static LONG GB_Paint(HWND hWnd)
 839 {
 840     PAINTSTRUCT ps;
 841     RECT rc;
 842     HDC hDC;
 843     HPEN hOldPen;
 844     HBRUSH hBrush;
 845     int textlen;
 846     char *text;
 847     HANDLE hText;
 848     SIZE size;
 849
 850     hDC = BeginPaint(hWnd, &ps);
 851     GetClientRect(hWnd, &rc);
 852
 853     hOldPen = (HPEN)SelectObject(hDC, sysColorObjects.hpenWindowText);
 854
 855     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 856                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 857     FillRect(hDC, &rc, hBrush);
 858
 859     textlen = GetWindowTextLength(hWnd);
 860     hText = USER_HEAP_ALLOC(0, textlen+1);
 861     text = USER_HEAP_ADDR(hText);
 862     GetWindowText(hWnd, text, textlen+1);
 863     GetTextExtentPoint(hDC, text, textlen, &size);
 864
 865     rc.top = 5;
 866     Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 867     rc.left = 10;
 868     rc.top = 0;
 869     rc.right = rc.left + size.cx + 1;
 870     rc.bottom = size.cy;
 871     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE);
 872
 873     SelectObject(hDC, hOldPen );
 874     USER_HEAP_FREE(hText);
 875     EndPaint(hWnd, &ps);
 876 }
 877
 878
 879 /**********************************************************************
 880  *       User Button Functions
 881  */
 882
 883 static LONG UB_Paint(HWND hWnd)
 884 {
 885     PAINTSTRUCT ps;
 886     HDC hDC;
 887     RECT rc;
 888     HBRUSH hBrush;
 889
 890     hDC = BeginPaint(hWnd, &ps);
 891     GetClientRect(hWnd, &rc);
 892
 893     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 894                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 895     FillRect(hDC, &rc, hBrush);
 896
 897     NOTIFY_PARENT(hWnd, BN_PAINT);
 898
 899     /* do we have the focus? */
 900     if (GetFocus() == hWnd)
 901         DrawFocusRect(hDC, &rc);
 902
 903     EndPaint(hWnd, &ps);
 904 }
 905
 906 static LONG UB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 907 {
 908     RECT rc;
 909
 910     SetFocus(hWnd);
 911     SetCapture(hWnd);
 912     GetClientRect(hWnd, &rc);
 913     if (PtInRect(&rc, MAKEPOINT(lParam)))
 914         NOTIFY_PARENT(hWnd, BN_HILITE);
 915     InvalidateRect(hWnd, NULL, FALSE);
 916     UpdateWindow(hWnd);
 917 }
 918
 919 static LONG UB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 920 {
 921     RECT rc;
 922
 923     ReleaseCapture();
 924     GetClientRect(hWnd, &rc);
 925     if (PtInRect(&rc, MAKEPOINT(lParam)))
 926     {
 927         NOTIFY_PARENT(hWnd, BN_CLICKED);
 928         NOTIFY_PARENT(hWnd, BN_UNHILITE);
 929     }
 930     InvalidateRect(hWnd, NULL, FALSE);
 931     UpdateWindow(hWnd);
 932 }
 933
 934 static LONG UB_KillFocus(HWND hWnd)
 935 {
 936     InvalidateRect(hWnd, NULL, FALSE);
 937     UpdateWindow(hWnd);
 938 }
 939
 940
 941 /**********************************************************************
 942  *       Ownerdrawn Button Functions
 943  */
 944
 945 static LONG OB_Paint(HWND hWnd)
 946 {
 947     PAINTSTRUCT ps;
 948     HDC         hDC;
 949     RECT        rc;
 950     HANDLE      hDis;
 951     LPDRAWITEMSTRUCT lpdis;
 952     WND *wndPtr = WIN_FindWndPtr(hWnd);
 953     hDC = BeginPaint(hWnd, &ps);
 954     GetClientRect(hWnd, &rc);
 955     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
 956     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
 957     lpdis->hDC = hDC;
 958     lpdis->itemID = 0;
 959     CopyRect(&lpdis->rcItem, &rc);
 960     lpdis->CtlID = wndPtr->wIDmenu;
 961     lpdis->CtlType = ODT_BUTTON;
 962     lpdis->itemAction = ODA_DRAWENTIRE;
 963 /*    printf("ownerdrawn button WM_DRAWITEM CtrlID=%X\n", lpdis->CtlID);*/
 964     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
 965     USER_HEAP_FREE(hDis);
 966     EndPaint(hWnd, &ps);
 967 }
 968
 969 static LONG OB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 970 {
 971     HDC         hDC;
 972     RECT        rc;
 973     HANDLE      hDis;
 974     LPDRAWITEMSTRUCT lpdis;
 975     WND *wndPtr = WIN_FindWndPtr(hWnd);
 976     SetFocus(hWnd);
 977     SetCapture(hWnd);
 978     hDC = GetDC(hWnd);
 979     GetClientRect(hWnd, &rc);
 980     if (PtInRect(&rc, MAKEPOINT(lParam)))
 981         NOTIFY_PARENT(hWnd, BN_CLICKED);
 982     GetClientRect(hWnd, &rc);
 983     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
 984     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
 985     lpdis->hDC = hDC;
 986     lpdis->itemID = 0;
 987     CopyRect(&lpdis->rcItem, &rc);
 988     lpdis->CtlID = wndPtr->wIDmenu;
 989     lpdis->CtlType = ODT_BUTTON;
 990     lpdis->itemAction = ODA_SELECT;
 991     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
 992     USER_HEAP_FREE(hDis);
 993     ReleaseDC(hWnd, hDC);
 994 }
 995
 996 static LONG OB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 997 {
 998     HDC         hDC;
 999     RECT        rc;
1000     HANDLE      hDis;
1001     LPDRAWITEMSTRUCT lpdis;
1002     WND *wndPtr = WIN_FindWndPtr(hWnd);
1003     ReleaseCapture();
1004     hDC = GetDC(hWnd);
1005     GetClientRect(hWnd, &rc);
1006     if (PtInRect(&rc, MAKEPOINT(lParam)))
1007         NOTIFY_PARENT(hWnd, BN_CLICKED);
1008     GetClientRect(hWnd, &rc);
1009     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
1010     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
1011     lpdis->hDC = hDC;
1012     lpdis->itemID = 0;
1013     CopyRect(&lpdis->rcItem, &rc);
1014     lpdis->CtlID = wndPtr->wIDmenu;
1015     lpdis->CtlType = ODT_BUTTON;
1016     lpdis->itemAction = ODA_SELECT;
1017     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
1018     USER_HEAP_FREE(hDis);
1019     ReleaseDC(hWnd, hDC);
1020 }
1021
1022 static LONG OB_KillFocus(HWND hWnd)
1023 {
1024     InvalidateRect(hWnd, NULL, FALSE);
1025     UpdateWindow(hWnd);
1026 }
1027