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
  14 LONG ButtonWndProc(HWND hWnd, WORD uMsg, WORD wParam, LONG lParam);
  15
  16 static COLORREF color_windowtext, color_windowframe, color_btnface,
  17                 color_btnshadow, color_btntext, color_btnhighlight;
  18
  19 static BOOL pressed;
  20
  21 #define NOTIFY_PARENT(hWndCntrl, wNotifyCode) \
  22         SendMessage(GetParent(hWndCntrl), WM_COMMAND, \
  23                 GetDlgCtrlID(hWndCntrl), MAKELPARAM(hWndCntrl, wNotifyCode));
  24 #define DIM(array)      ((sizeof array)/(sizeof array[0]))
  25
  26 static LONG PB_Paint(HWND hWnd);
  27 static LONG PB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  28 static LONG PB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  29 static LONG PB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  30 static LONG PB_KillFocus(HWND hwnd);
  31 static void DrawRaisedPushButton(HDC hDC, HWND hButton, RECT rc);
  32 static void DrawPressedPushButton(HDC hDC, HWND hButton, RECT rc);
  33 static LONG CB_Paint(HWND hWnd);
  34 static LONG CB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  35 static LONG CB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  36 static LONG CB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  37 static LONG CB_KillFocus(HWND hWnd);
  38 static LONG CB_SetCheck(HWND hWnd, WORD wParam);
  39 static LONG CB_GetCheck(HWND hWnd);
  40 static LONG RB_Paint(HWND hWnd);
  41 static LONG RB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  42 static LONG RB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  43 static LONG RB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam);
  44 static LONG RB_KillFocus(HWND hWnd);
  45 static LONG RB_SetCheck(HWND hWnd, WORD wParam);
  46 static LONG RB_GetCheck(HWND hWnd);
  47 static LONG GB_Paint(HWND hWnd);
  48 static LONG UB_Paint(HWND hWnd);
  49 static LONG UB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  50 static LONG UB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  51 static LONG UB_KillFocus(HWND hWnd);
  52 static LONG OB_Paint(HWND hWnd);
  53 static LONG OB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam);
  54 static LONG OB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam);
  55 static LONG OB_KillFocus(HWND hWnd);
  56
  57 typedef struct
  58 {
  59     LONG (*paintfn)();
  60     LONG (*lButtonDownfn)();
  61     LONG (*lButtonUpfn)();
  62     LONG (*lButtonDblClkfn)();
  63     LONG (*killFocusfn)();
  64     LONG (*setCheckfn)();
  65     LONG (*getCheckfn)();
  66 } BTNFN;
  67
  68 #define MAX_BTN_TYPE  12
  69
  70 static BTNFN btnfn[MAX_BTN_TYPE] =
  71 {
  72     {
  73         (LONG(*)())PB_Paint,                       /* BS_PUSHBUTTON */
  74         (LONG(*)())PB_LButtonDown,
  75         (LONG(*)())PB_LButtonUp,
  76         (LONG(*)())PB_LButtonDblClk,
  77         (LONG(*)())PB_KillFocus,
  78         (LONG(*)())NULL,
  79         (LONG(*)())NULL
  80     },
  81     {
  82         (LONG(*)())PB_Paint,                       /* BS_DEFPUSHBUTTON */
  83         (LONG(*)())PB_LButtonDown,
  84         (LONG(*)())PB_LButtonUp,
  85         (LONG(*)())PB_LButtonDblClk,
  86         (LONG(*)())PB_KillFocus,
  87         (LONG(*)())NULL,
  88         (LONG(*)())NULL
  89     },
  90     {
  91         (LONG(*)())CB_Paint,                       /* BS_CHECKBOX */
  92         (LONG(*)())CB_LButtonDown,
  93         (LONG(*)())CB_LButtonUp,
  94         (LONG(*)())CB_LButtonDblClk,
  95         (LONG(*)())CB_KillFocus,
  96         (LONG(*)())CB_SetCheck,
  97         (LONG(*)())CB_GetCheck
  98     },
  99     {
 100         (LONG(*)())CB_Paint,                       /* BS_AUTOCHECKBOX */
 101         (LONG(*)())CB_LButtonDown,
 102         (LONG(*)())CB_LButtonUp,
 103         (LONG(*)())CB_LButtonDblClk,
 104         (LONG(*)())CB_KillFocus,
 105         (LONG(*)())CB_SetCheck,
 106         (LONG(*)())CB_GetCheck
 107     },
 108     {
 109         (LONG(*)())RB_Paint,                       /* BS_RADIOBUTTON */
 110         (LONG(*)())RB_LButtonDown,
 111         (LONG(*)())RB_LButtonUp,
 112         (LONG(*)())RB_LButtonDblClk,
 113         (LONG(*)())RB_KillFocus,
 114         (LONG(*)())RB_SetCheck,
 115         (LONG(*)())RB_GetCheck
 116     },
 117     {
 118         (LONG(*)())CB_Paint,                       /* BS_3STATE */
 119         (LONG(*)())CB_LButtonDown,
 120         (LONG(*)())CB_LButtonUp,
 121         (LONG(*)())CB_LButtonDblClk,
 122         (LONG(*)())CB_KillFocus,
 123         (LONG(*)())CB_SetCheck,
 124         (LONG(*)())CB_GetCheck
 125     },
 126     {
 127         (LONG(*)())CB_Paint,                       /* BS_AUTO3STATE */
 128         (LONG(*)())CB_LButtonDown,
 129         (LONG(*)())CB_LButtonUp,
 130         (LONG(*)())CB_LButtonDblClk,
 131         (LONG(*)())CB_KillFocus,
 132         (LONG(*)())CB_SetCheck,
 133         (LONG(*)())CB_GetCheck
 134     },
 135     {
 136         (LONG(*)())GB_Paint,                       /* BS_GROUPBOX */
 137         (LONG(*)())NULL,
 138         (LONG(*)())NULL,
 139         (LONG(*)())NULL,
 140         (LONG(*)())NULL,
 141         (LONG(*)())NULL,
 142         (LONG(*)())NULL
 143     },
 144     {
 145         (LONG(*)())UB_Paint,                       /* BS_USERBUTTON */
 146         (LONG(*)())UB_LButtonDown,
 147         (LONG(*)())UB_LButtonUp,
 148         (LONG(*)())NULL,
 149         (LONG(*)())UB_KillFocus,
 150         (LONG(*)())NULL,
 151         (LONG(*)())NULL
 152     },
 153     {
 154         (LONG(*)())RB_Paint,                       /* BS_AUTORADIOBUTTON */
 155         (LONG(*)())RB_LButtonDown,
 156         (LONG(*)())RB_LButtonUp,
 157         (LONG(*)())RB_LButtonDblClk,
 158         (LONG(*)())RB_KillFocus,
 159         (LONG(*)())RB_SetCheck,
 160         (LONG(*)())RB_GetCheck
 161     },
 162     {
 163         (LONG(*)())NULL,                           /* Not defined */
 164         (LONG(*)())NULL,
 165         (LONG(*)())NULL,
 166         (LONG(*)())NULL,
 167         (LONG(*)())NULL,
 168         (LONG(*)())NULL,
 169         (LONG(*)())NULL
 170     },
 171     {
 172         (LONG(*)())OB_Paint,                       /* BS_OWNERDRAW */
 173         (LONG(*)())OB_LButtonDown,
 174         (LONG(*)())OB_LButtonUp,
 175         (LONG(*)())NULL,
 176         (LONG(*)())OB_KillFocus,
 177         (LONG(*)())NULL,
 178         (LONG(*)())NULL
 179     },
 180 };
 181
 182
 183 LONG ButtonWndProc(HWND hWnd, WORD uMsg, WORD wParam, LONG lParam)
 184 {
 185         LONG lResult = 0;
 186         HDC hDC;
 187         RECT rc;
 188
 189         WND *wndPtr = WIN_FindWndPtr(hWnd);
 190         LONG style = wndPtr->dwStyle & 0x0000000F;
 191
 192         switch (uMsg) {
 193 /*      case WM_GETDLGCODE:
 194                 lResult = DLGC_BUTTON;
 195                 break;
 196 */
 197         case WM_ENABLE:
 198                 InvalidateRect(hWnd, NULL, FALSE);
 199                 break;
 200
 201         case WM_CREATE:
 202                 if (style < 0L || style >= (LONG)DIM(btnfn))
 203                     lResult = -1L;
 204                 else
 205                 {
 206                     /* initialise colours used for button rendering: */
 207                     color_windowtext   = GetSysColor(COLOR_WINDOWTEXT);
 208                     color_windowframe  = GetSysColor(COLOR_WINDOWFRAME);
 209                     color_btnface      = GetSysColor(COLOR_BTNFACE);
 210                     color_btnshadow    = GetSysColor(COLOR_BTNSHADOW);
 211                     color_btntext      = GetSysColor(COLOR_BTNTEXT);
 212                     color_btnhighlight = GetSysColor(COLOR_BTNHIGHLIGHT);
 213
 214                     (WORD)(*(wndPtr->wExtra)) = 0;
 215                     pressed = FALSE;
 216                     lResult = 0L;
 217                 }
 218                 break;
 219
 220         case WM_PAINT:
 221                 if (btnfn[style].paintfn)
 222                     (btnfn[style].paintfn)(hWnd);
 223                 break;
 224
 225         case WM_LBUTTONDOWN:
 226                 if (btnfn[style].lButtonDownfn)
 227                     (btnfn[style].lButtonDownfn)(hWnd, wParam, lParam);
 228                 break;
 229
 230         case WM_LBUTTONUP:
 231                 if (btnfn[style].lButtonUpfn)
 232                     (btnfn[style].lButtonUpfn)(hWnd, wParam, lParam);
 233                 break;
 234
 235         case WM_LBUTTONDBLCLK:
 236                 if (btnfn[style].lButtonDblClkfn)
 237                     (btnfn[style].lButtonDblClkfn)(hWnd, wParam, lParam);
 238                 break;
 239
 240         case WM_SETFOCUS:
 241                 break;
 242
 243         case WM_KILLFOCUS:
 244                 if (btnfn[style].killFocusfn)
 245                     (btnfn[style].killFocusfn)(hWnd);
 246                 break;
 247
 248         case WM_SYSCOLORCHANGE:
 249                 color_windowtext   = GetSysColor(COLOR_WINDOWTEXT);
 250                 color_windowframe  = GetSysColor(COLOR_WINDOWFRAME);
 251                 color_btnface      = GetSysColor(COLOR_BTNFACE);
 252                 color_btnshadow    = GetSysColor(COLOR_BTNSHADOW);
 253                 color_btntext      = GetSysColor(COLOR_BTNTEXT);
 254                 color_btnhighlight = GetSysColor(COLOR_BTNHIGHLIGHT);
 255                 InvalidateRect(hWnd, NULL, TRUE);
 256                 break;
 257
 258         case BM_SETCHECK:
 259                 if (btnfn[style].setCheckfn)
 260                     (btnfn[style].setCheckfn)(hWnd, wParam);
 261                 break;
 262
 263         case BM_GETCHECK:
 264                 if (btnfn[style].getCheckfn)
 265                     return (btnfn[style].getCheckfn)(hWnd);
 266                 break;
 267
 268         default:
 269                 lResult = DefWindowProc(hWnd, uMsg, wParam, lParam);
 270                 break;
 271         }
 272
 273         GlobalUnlock(hWnd);
 274         return lResult;
 275 }
 276
 277
 278 /**********************************************************************
 279  *       Push Button Functions
 280  */
 281
 282 static LONG PB_Paint(HWND hWnd)
 283 {
 284     PAINTSTRUCT ps;
 285     RECT rc;
 286     HDC hDC;
 287
 288     hDC = BeginPaint(hWnd, &ps);
 289     GetClientRect(hWnd, &rc);
 290     if (pressed)
 291         DrawPressedPushButton(hDC, hWnd, rc);
 292     else
 293         DrawRaisedPushButton(hDC, hWnd, rc);
 294     EndPaint(hWnd, &ps);
 295 }
 296
 297 static LONG PB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 298 {
 299 /*    SetFocus(hWnd); */
 300     SetCapture(hWnd);
 301     pressed = TRUE;
 302     InvalidateRect(hWnd, NULL, FALSE);
 303     UpdateWindow(hWnd);
 304 }
 305
 306 static LONG PB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 307 {
 308     RECT rc;
 309
 310     pressed = FALSE;
 311     ReleaseCapture();
 312     GetClientRect(hWnd, &rc);
 313     if (PtInRect(&rc, MAKEPOINT(lParam)))
 314         NOTIFY_PARENT(hWnd, BN_CLICKED);
 315     InvalidateRect(hWnd, NULL, FALSE);
 316     UpdateWindow(hWnd);
 317 }
 318
 319 static LONG PB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 320 {
 321     RECT rc;
 322
 323     GetClientRect(hWnd, &rc);
 324     if (PtInRect(&rc, MAKEPOINT(lParam)))
 325         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 326 }
 327
 328 static LONG PB_KillFocus(HWND hWnd)
 329 {
 330     pressed = FALSE;
 331     InvalidateRect(hWnd, NULL, FALSE);
 332     UpdateWindow(hWnd);
 333 }
 334
 335 static void DrawRaisedPushButton(HDC hDC, HWND hButton, RECT rc)
 336 {
 337         HPEN hOldPen, hFramePen;
 338         HBRUSH hOldBrush, hShadowBrush, hHighlightBrush, hBackgrndBrush;
 339         HRGN rgn1, rgn2, rgn;
 340         int len;
 341         static char text[50+1];
 342         POINT points[6];
 343         DWORD dwTextSize;
 344         int delta;
 345         TEXTMETRIC tm;
 346         int i;
 347
 348         hFramePen = CreatePen(PS_SOLID, 1, color_windowframe);
 349         hBackgrndBrush = CreateSolidBrush(color_btnface);
 350
 351         hOldPen = (HPEN)SelectObject(hDC, (HANDLE)hFramePen);
 352         hOldBrush = (HBRUSH)SelectObject(hDC, (HANDLE)hBackgrndBrush);
 353         SetBkMode(hDC, TRANSPARENT);
 354
 355         rgn = CreateRectRgn(0, 0,  0,  0);
 356         rgn1 = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
 357
 358         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 359                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 360         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 361
 362         /* draw button label, if any: */
 363         len = GetWindowText(hButton, text, sizeof text);
 364         if (len >= 1) {
 365                 rc.left--;      rc.bottom--;
 366                 DrawText(hDC, text, len, &rc,
 367                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 368         }
 369
 370         /* draw button highlight */
 371         points[0].x = rc.left+2;
 372         points[0].y = rc.bottom;
 373         points[1].x = rc.left+4;
 374         points[1].y = rc.bottom-2;
 375         points[2].x = rc.left+4;
 376         points[2].y = rc.top+3;
 377         points[3].x = rc.right-3;
 378         points[3].y = rc.top+3;
 379         points[4].x = rc.right-1;
 380         points[4].y = rc.top+1;
 381         points[5].x = rc.left+2;
 382         points[5].y = rc.top+1;
 383         hHighlightBrush = CreateSolidBrush(color_btnhighlight);
 384         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 385         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 386         FillRgn(hDC, rgn2, hHighlightBrush);
 387
 388         /* draw button shadow: */
 389         points[0].x = rc.left+2;
 390         points[0].y = rc.bottom;
 391         points[1].x = rc.left+4;
 392         points[1].y = rc.bottom-2;
 393         points[2].x = rc.right-3;
 394         points[2].y = rc.bottom-2;
 395         points[3].x = rc.right-3;
 396         points[3].y = rc.top+3;
 397         points[4].x = rc.right-1;
 398         points[4].y = rc.top;
 399         points[5].x = rc.right-1;
 400         points[5].y = rc.bottom;
 401         hShadowBrush = CreateSolidBrush(color_btnshadow);
 402         rgn2 = CreatePolygonRgn(points, DIM(points), ALTERNATE);
 403         CombineRgn(rgn, rgn1, rgn2, RGN_AND);
 404         FillRgn(hDC, rgn2, hShadowBrush);
 405
 406         /* do we have the focus? */
 407         if (len >= 1 && GetFocus() == hButton) {
 408                 dwTextSize = GetTextExtent(hDC, text, len);
 409                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 410                 rc.left += delta;       rc.right -= delta;
 411                 GetTextMetrics(hDC, &tm);
 412                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 413                 rc.top += delta;        rc.bottom -= delta;
 414                 DrawFocusRect(hDC, &rc);
 415         }
 416
 417         SelectObject(hDC, (HANDLE)hOldPen);
 418         SelectObject(hDC, (HANDLE)hOldBrush);
 419         DeleteObject((HANDLE)hFramePen);
 420         DeleteObject((HANDLE)hShadowBrush);
 421         DeleteObject((HANDLE)hBackgrndBrush);
 422         DeleteObject((HANDLE)rgn1);
 423         DeleteObject((HANDLE)rgn2);
 424         DeleteObject((HANDLE)rgn);
 425 }
 426
 427
 428 static void DrawPressedPushButton(HDC hDC, HWND hButton, RECT rc)
 429 {
 430         HPEN hOldPen, hShadowPen, hFramePen;
 431         HBRUSH hOldBrush, hBackgrndBrush;
 432         HRGN rgn1, rgn2, rgn;
 433         int len;
 434         static char text[50+1];
 435         DWORD dwTextSize;
 436         int delta;
 437         TEXTMETRIC tm;
 438
 439         hFramePen = CreatePen(PS_SOLID, 1, color_windowframe);
 440         hBackgrndBrush = CreateSolidBrush(color_btnface);
 441
 442         hOldBrush = (HBRUSH)SelectObject(hDC, (HANDLE)hBackgrndBrush);
 443         hOldPen = (HPEN)SelectObject(hDC, (HANDLE)hFramePen);
 444         SetBkMode(hDC, TRANSPARENT);
 445
 446         /* give parent a chance to alter parameters: */
 447         SendMessage(GetParent(hButton), WM_CTLCOLOR, (WORD)hDC,
 448                     MAKELPARAM(hButton, CTLCOLOR_BTN));
 449         Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 450
 451         /* draw button shadow: */
 452         hShadowPen = CreatePen(PS_SOLID, 1, color_btnshadow);
 453         SelectObject(hDC, (HANDLE)hShadowPen);
 454         MoveTo(hDC, rc.left+1, rc.bottom-1);
 455         LineTo(hDC, rc.left+1, rc.top+1);
 456         LineTo(hDC, rc.right-1, rc.top+1);
 457
 458         /* draw button label, if any: */
 459         len = GetWindowText(hButton, text, sizeof text);
 460         if (len >= 1) {
 461                 rc.top++;       rc.left++;
 462                 DrawText(hDC, text, len, &rc,
 463                          DT_SINGLELINE | DT_CENTER| DT_VCENTER);
 464         }
 465
 466         /* do we have the focus? */
 467         if (len >= 1 && GetFocus() == hButton) {
 468                 dwTextSize = GetTextExtent(hDC, text, len);
 469                 delta = ((rc.right - rc.left) - LOWORD(dwTextSize) - 1) >> 1;
 470                 rc.left += delta;       rc.right -= delta;
 471                 GetTextMetrics(hDC, &tm);
 472                 delta = ((rc.bottom - rc.top) - tm.tmHeight - 1) >> 1;
 473                 rc.top += delta;        rc.bottom -= delta;
 474                 DrawFocusRect(hDC, &rc);
 475         }
 476
 477         SelectObject(hDC, (HANDLE)hOldPen);
 478         SelectObject(hDC, (HANDLE)hOldBrush);
 479         DeleteObject((HANDLE)hBackgrndBrush);
 480         DeleteObject(SelectObject(hDC, (HANDLE)hFramePen));
 481         DeleteObject(SelectObject(hDC, (HANDLE)hShadowPen));
 482 }
 483
 484
 485 /**********************************************************************
 486  *       Check Box Functions
 487  */
 488
 489 static LONG CB_Paint(HWND hWnd)
 490 {
 491     PAINTSTRUCT ps;
 492     RECT rc, rc3;
 493     HDC hDC;
 494     HPEN hPen, hOldPen;
 495     HBRUSH hBrush, hGrayBrush;
 496     int textlen, delta;
 497     char *text;
 498     HANDLE hText;
 499     TEXTMETRIC tm;
 500     SIZE size;
 501     WND *wndPtr = WIN_FindWndPtr(hWnd);
 502
 503     hDC = BeginPaint(hWnd, &ps);
 504     GetClientRect(hWnd, &rc);
 505
 506     hPen = CreatePen(PS_SOLID, 1, color_windowtext);
 507     hOldPen = (HPEN)SelectObject(hDC, (HANDLE)hPen);
 508     hGrayBrush = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
 509
 510     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 511                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 512     FillRect(hDC, &rc, hBrush);
 513
 514     textlen = GetWindowTextLength(hWnd);
 515     hText = USER_HEAP_ALLOC(0, textlen+1);
 516     text = USER_HEAP_ADDR(hText);
 517     GetWindowText(hWnd, text, textlen+1);
 518     GetTextMetrics(hDC, &tm);
 519
 520     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 521     Rectangle(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 522     if (pressed)
 523         Rectangle(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 524                                               tm.tmHeight + delta - 1);
 525
 526     switch ((WORD)(*(wndPtr->wExtra)))
 527     {
 528     case 1:
 529         MoveTo(hDC, 0, rc.top + delta);
 530         LineTo(hDC, tm.tmHeight - 1, tm.tmHeight + delta - 1);
 531         MoveTo(hDC, 0, tm.tmHeight + delta - 1);
 532         LineTo(hDC, tm.tmHeight - 1, rc.top + delta);
 533         break;
 534
 535     case 2:
 536         rc3.left = 1;
 537         rc3.top = rc.top + delta + 1;
 538         rc3.right = tm.tmHeight - 1;
 539         rc3.bottom = tm.tmHeight + delta - 1;
 540         FillRect(hDC, &rc3, hGrayBrush);
 541         break;
 542     }
 543
 544     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 545     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 546
 547     /* do we have the focus? */
 548     if (GetFocus() == hWnd)
 549     {
 550         GetTextExtentPoint(hDC, text, textlen, &size);
 551         rc.top += delta - 1;
 552         rc.bottom -= delta + 1;
 553         rc.left--;
 554         rc.right = rc.left + size.cx + 2;
 555         DrawFocusRect(hDC, &rc);
 556     }
 557
 558     USER_HEAP_FREE(hText);
 559     GlobalUnlock(hWnd);
 560     EndPaint(hWnd, &ps);
 561 }
 562
 563 static LONG CB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 564 {
 565     RECT rc;
 566     HDC hDC;
 567     TEXTMETRIC tm;
 568     int delta;
 569
 570     hDC = GetDC(hWnd);
 571     GetTextMetrics(hDC, &tm);
 572     ReleaseDC(hWnd, hDC);
 573     GetClientRect(hWnd, &rc);
 574     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 575     rc.top += delta;
 576     rc.bottom = tm.tmHeight + delta;
 577     rc.right = tm.tmHeight;
 578     if (PtInRect(&rc, MAKEPOINT(lParam)))
 579     {
 580 /*      SetFocus(hWnd); */
 581         SetCapture(hWnd);
 582         pressed = TRUE;
 583         InvalidateRect(hWnd, NULL, FALSE);
 584         UpdateWindow(hWnd);
 585     }
 586 }
 587
 588 static LONG CB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 589 {
 590     RECT rc;
 591     HDC hDC;
 592     TEXTMETRIC tm;
 593     int delta;
 594     WND *wndPtr = WIN_FindWndPtr(hWnd);
 595     LONG style;
 596
 597     pressed = FALSE;
 598     ReleaseCapture();
 599     hDC = GetDC(hWnd);
 600     GetTextMetrics(hDC, &tm);
 601     ReleaseDC(hWnd, hDC);
 602     GetClientRect(hWnd, &rc);
 603     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 604     rc.top += delta;
 605     rc.bottom = tm.tmHeight + delta;
 606     rc.right = tm.tmHeight;
 607
 608     if (PtInRect(&rc, MAKEPOINT(lParam)))
 609     {
 610         style = wndPtr->dwStyle & 0x0000000F;
 611         if (style == BS_AUTOCHECKBOX)
 612         {
 613             switch ((WORD)(*(wndPtr->wExtra)))
 614             {
 615             case 0:
 616                 (WORD)(*(wndPtr->wExtra)) = 1;
 617                 break;
 618
 619             case 1:
 620                 (WORD)(*(wndPtr->wExtra)) = 0;
 621                 break;
 622             }
 623         }
 624         else if (style == BS_AUTO3STATE)
 625         {
 626             switch ((WORD)(*(wndPtr->wExtra)))
 627             {
 628             case 0:
 629                 (WORD)(*(wndPtr->wExtra)) = 1;
 630                 break;
 631
 632             case 1:
 633                 (WORD)(*(wndPtr->wExtra)) = 2;
 634                 break;
 635
 636             case 2:
 637                 (WORD)(*(wndPtr->wExtra)) = 0;
 638                 break;
 639             }
 640         }
 641         NOTIFY_PARENT(hWnd, BN_CLICKED);
 642     }
 643     GlobalUnlock(hWnd);
 644     InvalidateRect(hWnd, NULL, FALSE);
 645     UpdateWindow(hWnd);
 646 }
 647
 648 static LONG CB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 649 {
 650     RECT rc;
 651     HDC hDC;
 652     TEXTMETRIC tm;
 653     int delta;
 654
 655     hDC = GetDC(hWnd);
 656     GetTextMetrics(hDC, &tm);
 657     ReleaseDC(hWnd, hDC);
 658     GetClientRect(hWnd, &rc);
 659     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 660     rc.top += delta;
 661     rc.bottom = tm.tmHeight + delta;
 662     rc.right = tm.tmHeight;
 663     if (PtInRect(&rc, MAKEPOINT(lParam)))
 664         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 665 }
 666
 667 static LONG CB_KillFocus(HWND hWnd)
 668 {
 669     pressed = FALSE;
 670     InvalidateRect(hWnd, NULL, FALSE);
 671     UpdateWindow(hWnd);
 672 }
 673
 674 static LONG CB_SetCheck(HWND hWnd, WORD wParam)
 675 {
 676     WND *wndPtr = WIN_FindWndPtr(hWnd);
 677
 678     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 679     {
 680         (WORD)(*(wndPtr->wExtra)) = wParam;
 681         InvalidateRect(hWnd, NULL, FALSE);
 682         UpdateWindow(hWnd);
 683     }
 684     GlobalUnlock(hWnd);
 685 }
 686
 687 static LONG CB_GetCheck(HWND hWnd)
 688 {
 689     WORD wResult;
 690     WND *wndPtr = WIN_FindWndPtr(hWnd);
 691
 692     wResult = (WORD)(*(wndPtr->wExtra));
 693     GlobalUnlock(hWnd);
 694     return (LONG)wResult;
 695 }
 696
 697
 698 /**********************************************************************
 699  *       Radio Button Functions
 700  */
 701
 702 static LONG RB_Paint(HWND hWnd)
 703 {
 704     PAINTSTRUCT ps;
 705     RECT rc;
 706     HDC hDC;
 707     HPEN hPen, hOldPen;
 708     HBRUSH hBrush, hOldBrush;
 709     int textlen, delta;
 710     char *text;
 711     HANDLE hText;
 712     TEXTMETRIC tm;
 713     SIZE size;
 714     WND *wndPtr = WIN_FindWndPtr(hWnd);
 715
 716     hDC = BeginPaint(hWnd, &ps);
 717     GetClientRect(hWnd, &rc);
 718
 719     hPen = CreatePen(PS_SOLID, 1, color_windowtext);
 720     hOldPen = (HPEN)SelectObject(hDC, (HANDLE)hPen);
 721
 722     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 723                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 724     FillRect(hDC, &rc, hBrush);
 725
 726     textlen = GetWindowTextLength(hWnd);
 727     hText = USER_HEAP_ALLOC(0, textlen+1);
 728     text = USER_HEAP_ADDR(hText);
 729     GetWindowText(hWnd, text, textlen+1);
 730     GetTextMetrics(hDC, &tm);
 731
 732     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 733     Ellipse(hDC, 0, rc.top + delta, tm.tmHeight, tm.tmHeight + delta);
 734     if (pressed)
 735         Ellipse(hDC, 1, rc.top + delta + 1, tm.tmHeight - 1,
 736                                               tm.tmHeight + delta - 1);
 737
 738     if ((WORD)(*(wndPtr->wExtra)) == 1)
 739     {
 740         hBrush = CreateSolidBrush(color_windowtext);
 741         hOldBrush = (HBRUSH)SelectObject(hDC, (HANDLE)hBrush);
 742         Ellipse(hDC, 3, rc.top + delta + 3, tm.tmHeight - 3,
 743                                             tm.tmHeight + delta -3);
 744         SelectObject(hDC, (HANDLE)hOldBrush);
 745         DeleteObject((HANDLE)hBrush);
 746     }
 747
 748     rc.left = tm.tmHeight + tm.tmAveCharWidth / 2;
 749     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE | DT_VCENTER);
 750
 751     /* do we have the focus? */
 752     if (GetFocus() == hWnd)
 753     {
 754         GetTextExtentPoint(hDC, text, textlen, &size);
 755         rc.top += delta - 1;
 756         rc.bottom -= delta + 1;
 757         rc.left--;
 758         rc.right = rc.left + size.cx + 2;
 759         DrawFocusRect(hDC, &rc);
 760     }
 761
 762     USER_HEAP_FREE(hText);
 763     GlobalUnlock(hWnd);
 764     EndPaint(hWnd, &ps);
 765 }
 766
 767 static LONG RB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 768 {
 769     RECT rc;
 770     HDC hDC;
 771     TEXTMETRIC tm;
 772     int delta;
 773
 774     hDC = GetDC(hWnd);
 775     GetTextMetrics(hDC, &tm);
 776     ReleaseDC(hWnd, hDC);
 777     GetClientRect(hWnd, &rc);
 778     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 779     rc.top += delta;
 780     rc.bottom = tm.tmHeight + delta;
 781     rc.right = tm.tmHeight;
 782     if (PtInRect(&rc, MAKEPOINT(lParam)))
 783     {
 784 /*      SetFocus(hWnd); */
 785         SetCapture(hWnd);
 786         pressed = TRUE;
 787         InvalidateRect(hWnd, NULL, FALSE);
 788         UpdateWindow(hWnd);
 789     }
 790 }
 791
 792 static LONG RB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 793 {
 794     RECT rc;
 795     HDC hDC;
 796     TEXTMETRIC tm;
 797     int delta;
 798     WND *wndPtr = WIN_FindWndPtr(hWnd);
 799     LONG style;
 800
 801     pressed = FALSE;
 802     ReleaseCapture();
 803     hDC = GetDC(hWnd);
 804     GetTextMetrics(hDC, &tm);
 805     ReleaseDC(hWnd, hDC);
 806     GetClientRect(hWnd, &rc);
 807     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 808     rc.top += delta;
 809     rc.bottom = tm.tmHeight + delta;
 810     rc.right = tm.tmHeight;
 811
 812     if (PtInRect(&rc, MAKEPOINT(lParam)))
 813     {
 814         style = wndPtr->dwStyle & 0x0000000F;
 815         if (style == BS_AUTORADIOBUTTON)
 816             (WORD)(*(wndPtr->wExtra)) = 1;
 817         NOTIFY_PARENT(hWnd, BN_CLICKED);
 818     }
 819     GlobalUnlock(hWnd);
 820     InvalidateRect(hWnd, NULL, FALSE);
 821     UpdateWindow(hWnd);
 822 }
 823
 824 static LONG RB_LButtonDblClk(HWND hWnd, WORD wParam, LONG lParam)
 825 {
 826     RECT rc;
 827     HDC hDC;
 828     TEXTMETRIC tm;
 829     int delta;
 830
 831     hDC = GetDC(hWnd);
 832     GetTextMetrics(hDC, &tm);
 833     ReleaseDC(hWnd, hDC);
 834     GetClientRect(hWnd, &rc);
 835     delta = (rc.bottom - rc.top - tm.tmHeight) >> 1;
 836     rc.top += delta;
 837     rc.bottom = tm.tmHeight + delta;
 838     rc.right = tm.tmHeight;
 839     if (PtInRect(&rc, MAKEPOINT(lParam)))
 840         NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
 841 }
 842
 843 static LONG RB_KillFocus(HWND hWnd)
 844 {
 845     pressed = FALSE;
 846     InvalidateRect(hWnd, NULL, FALSE);
 847     UpdateWindow(hWnd);
 848 }
 849
 850 static LONG RB_SetCheck(HWND hWnd, WORD wParam)
 851 {
 852     WND *wndPtr = WIN_FindWndPtr(hWnd);
 853
 854     if ((WORD)(*(wndPtr->wExtra)) != wParam)
 855     {
 856         (WORD)(*(wndPtr->wExtra)) = wParam;
 857         InvalidateRect(hWnd, NULL, FALSE);
 858         UpdateWindow(hWnd);
 859     }
 860     GlobalUnlock(hWnd);
 861 }
 862
 863 static LONG RB_GetCheck(HWND hWnd)
 864 {
 865     WORD wResult;
 866     WND *wndPtr = WIN_FindWndPtr(hWnd);
 867
 868     wResult = (WORD)(*(wndPtr->wExtra));
 869     GlobalUnlock(hWnd);
 870     return (LONG)wResult;
 871 }
 872
 873
 874 /**********************************************************************
 875  *       Group Box Functions
 876  */
 877
 878 static LONG GB_Paint(HWND hWnd)
 879 {
 880     PAINTSTRUCT ps;
 881     RECT rc;
 882     HDC hDC;
 883     HPEN hPen, hOldPen;
 884     HBRUSH hBrush;
 885     int textlen;
 886     char *text;
 887     HANDLE hText;
 888     SIZE size;
 889
 890     hDC = BeginPaint(hWnd, &ps);
 891     GetClientRect(hWnd, &rc);
 892
 893     hPen = CreatePen(PS_SOLID, 1, color_windowtext);
 894     hOldPen = (HPEN)SelectObject(hDC, (HANDLE)hPen);
 895
 896     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 897                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 898     FillRect(hDC, &rc, hBrush);
 899
 900     textlen = GetWindowTextLength(hWnd);
 901     hText = USER_HEAP_ALLOC(0, textlen+1);
 902     text = USER_HEAP_ADDR(hText);
 903     GetWindowText(hWnd, text, textlen+1);
 904     GetTextExtentPoint(hDC, text, textlen, &size);
 905
 906     rc.top = 5;
 907     Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
 908     rc.left = 10;
 909     rc.top = 0;
 910     rc.right = rc.left + size.cx + 1;
 911     rc.bottom = size.cy;
 912     DrawText(hDC, text, textlen, &rc, DT_SINGLELINE);
 913
 914     USER_HEAP_FREE(hText);
 915     EndPaint(hWnd, &ps);
 916 }
 917
 918
 919 /**********************************************************************
 920  *       User Button Functions
 921  */
 922
 923 static LONG UB_Paint(HWND hWnd)
 924 {
 925     PAINTSTRUCT ps;
 926     HDC hDC;
 927     RECT rc;
 928     HBRUSH hBrush;
 929
 930     hDC = BeginPaint(hWnd, &ps);
 931     GetClientRect(hWnd, &rc);
 932
 933     hBrush = SendMessage(GetParent(hWnd), WM_CTLCOLOR, (WORD)hDC,
 934                          MAKELPARAM(hWnd, CTLCOLOR_BTN));
 935     FillRect(hDC, &rc, hBrush);
 936
 937     NOTIFY_PARENT(hWnd, BN_PAINT);
 938
 939     /* do we have the focus? */
 940     if (GetFocus() == hWnd)
 941         DrawFocusRect(hDC, &rc);
 942
 943     EndPaint(hWnd, &ps);
 944 }
 945
 946 static LONG UB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
 947 {
 948     RECT rc;
 949
 950 /*    SetFocus(hWnd); */
 951     SetCapture(hWnd);
 952     GetClientRect(hWnd, &rc);
 953     if (PtInRect(&rc, MAKEPOINT(lParam)))
 954         NOTIFY_PARENT(hWnd, BN_HILITE);
 955     InvalidateRect(hWnd, NULL, FALSE);
 956     UpdateWindow(hWnd);
 957 }
 958
 959 static LONG UB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
 960 {
 961     RECT rc;
 962
 963     ReleaseCapture();
 964     GetClientRect(hWnd, &rc);
 965     if (PtInRect(&rc, MAKEPOINT(lParam)))
 966     {
 967         NOTIFY_PARENT(hWnd, BN_CLICKED);
 968         NOTIFY_PARENT(hWnd, BN_UNHILITE);
 969     }
 970     InvalidateRect(hWnd, NULL, FALSE);
 971     UpdateWindow(hWnd);
 972 }
 973
 974 static LONG UB_KillFocus(HWND hWnd)
 975 {
 976     InvalidateRect(hWnd, NULL, FALSE);
 977     UpdateWindow(hWnd);
 978 }
 979
 980
 981 /**********************************************************************
 982  *       Ownerdrawn Button Functions
 983  */
 984
 985 static LONG OB_Paint(HWND hWnd)
 986 {
 987     PAINTSTRUCT ps;
 988     HDC         hDC;
 989     RECT        rc;
 990     HANDLE      hDis;
 991     LPDRAWITEMSTRUCT lpdis;
 992     WND *wndPtr = WIN_FindWndPtr(hWnd);
 993     hDC = BeginPaint(hWnd, &ps);
 994     GetClientRect(hWnd, &rc);
 995     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
 996     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
 997     lpdis->hDC = hDC;
 998     lpdis->itemID = 0;
 999     CopyRect(&lpdis->rcItem, &rc);
1000     lpdis->CtlID = wndPtr->wIDmenu;
1001     lpdis->CtlType = ODT_BUTTON;
1002     lpdis->itemAction = ODA_DRAWENTIRE;
1003 /*    printf("ownerdrawn button WM_DRAWITEM CtrlID=%X\n", lpdis->CtlID);*/
1004     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
1005     USER_HEAP_FREE(hDis);
1006     EndPaint(hWnd, &ps);
1007 }
1008
1009 static LONG OB_LButtonDown(HWND hWnd, WORD wParam, LONG lParam)
1010 {
1011     HDC         hDC;
1012     RECT        rc;
1013     HANDLE      hDis;
1014     LPDRAWITEMSTRUCT lpdis;
1015     WND *wndPtr = WIN_FindWndPtr(hWnd);
1016 /*    SetFocus(hWnd); */
1017     SetCapture(hWnd);
1018     hDC = GetDC(hWnd);
1019     GetClientRect(hWnd, &rc);
1020     if (PtInRect(&rc, MAKEPOINT(lParam)))
1021         NOTIFY_PARENT(hWnd, BN_CLICKED);
1022     GetClientRect(hWnd, &rc);
1023     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
1024     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
1025     lpdis->hDC = hDC;
1026     lpdis->itemID = 0;
1027     CopyRect(&lpdis->rcItem, &rc);
1028     lpdis->CtlID = wndPtr->wIDmenu;
1029     lpdis->CtlType = ODT_BUTTON;
1030     lpdis->itemAction = ODA_SELECT;
1031     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
1032     USER_HEAP_FREE(hDis);
1033     ReleaseDC(hWnd, hDC);
1034 }
1035
1036 static LONG OB_LButtonUp(HWND hWnd, WORD wParam, LONG lParam)
1037 {
1038     HDC         hDC;
1039     RECT        rc;
1040     HANDLE      hDis;
1041     LPDRAWITEMSTRUCT lpdis;
1042     WND *wndPtr = WIN_FindWndPtr(hWnd);
1043     ReleaseCapture();
1044     hDC = GetDC(hWnd);
1045     GetClientRect(hWnd, &rc);
1046     if (PtInRect(&rc, MAKEPOINT(lParam)))
1047         NOTIFY_PARENT(hWnd, BN_CLICKED);
1048     GetClientRect(hWnd, &rc);
1049     hDis = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(DRAWITEMSTRUCT));
1050     lpdis = (LPDRAWITEMSTRUCT)USER_HEAP_ADDR(hDis);
1051     lpdis->hDC = hDC;
1052     lpdis->itemID = 0;
1053     CopyRect(&lpdis->rcItem, &rc);
1054     lpdis->CtlID = wndPtr->wIDmenu;
1055     lpdis->CtlType = ODT_BUTTON;
1056     lpdis->itemAction = ODA_SELECT;
1057     SendMessage(GetParent(hWnd), WM_DRAWITEM, 1, (LPARAM)lpdis);
1058     USER_HEAP_FREE(hDis);
1059     ReleaseDC(hWnd, hDC);
1060 }
1061
1062 static LONG OB_KillFocus(HWND hWnd)
1063 {
1064     InvalidateRect(hWnd, NULL, FALSE);
1065     UpdateWindow(hWnd);
1066 }
1067