windows/msgbox.c

   1 /*
   2  * Message boxes
   3  *
   4  * Copyright 1995 Bernd Schmidt
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <string.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "wine/winbase16.h"
  28 #include "wine/winuser16.h"
  29 #include "winreg.h"
  30 #include "winternl.h"
  31 #include "dlgs.h"
  32 #include "user.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  36
  37 #define MSGBOX_IDICON 1088
  38 #define MSGBOX_IDTEXT 100
  39 #define IDS_ERROR     2
  40
  41 static HFONT MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
  42 {
  43     HFONT hFont = 0, hPrevFont = 0;
  44     RECT rect;
  45     HWND hItem;
  46     HDC hdc;
  47     int i, buttons;
  48     int bspace, bw, bh, theight, tleft, wwidth, wheight, bpos;
  49     int borheight, borwidth, iheight, ileft, iwidth, twidth, tiheight;
  50     LPCWSTR lpszText;
  51     WCHAR buf[256];
  52
  53     if (TWEAK_WineLook >= WIN95_LOOK) {
  54         NONCLIENTMETRICSW nclm;
  55         nclm.cbSize = sizeof(nclm);
  56         SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);
  57         hFont = CreateFontIndirectW (&nclm.lfMessageFont);
  58         /* set button font */
  59         for (i=1; i < 8; i++)
  60             SendDlgItemMessageW (hwnd, i, WM_SETFONT, (WPARAM)hFont, 0);
  61         /* set text font */
  62         SendDlgItemMessageW (hwnd, MSGBOX_IDTEXT, WM_SETFONT, (WPARAM)hFont, 0);
  63     }
  64     if (HIWORD(lpmb->lpszCaption)) {
  65        SetWindowTextW(hwnd, lpmb->lpszCaption);
  66     } else {
  67        UINT res_id = LOWORD(lpmb->lpszCaption);
  68        if (res_id)
  69        {
  70            if (LoadStringW(lpmb->hInstance, res_id, buf, 256))
  71                SetWindowTextW(hwnd, buf);
  72        }
  73        else
  74        {
  75            if (LoadStringW(user32_module, IDS_ERROR, buf, 256))
  76                SetWindowTextW(hwnd, buf);
  77        }
  78     }
  79     if (HIWORD(lpmb->lpszText)) {
  80        lpszText = lpmb->lpszText;
  81     } else {
  82        lpszText = buf;
  83        if (!LoadStringW(lpmb->hInstance, LOWORD(lpmb->lpszText), buf, 256))
  84           *buf = 0;     /* FIXME ?? */
  85     }
  86     SetWindowTextW(GetDlgItem(hwnd, MSGBOX_IDTEXT), lpszText);
  87
  88     /* Hide not selected buttons */
  89     switch(lpmb->dwStyle & MB_TYPEMASK) {
  90     case MB_OK:
  91         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
  92         /* fall through */
  93     case MB_OKCANCEL:
  94         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
  95         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
  96         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
  97         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
  98         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
  99         break;
 100     case MB_ABORTRETRYIGNORE:
 101         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 102         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 103         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 104         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 105         break;
 106     case MB_YESNO:
 107         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 108         /* fall through */
 109     case MB_YESNOCANCEL:
 110         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 111         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 112         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
 113         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 114         break;
 115     case MB_RETRYCANCEL:
 116         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 117         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 118         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 119         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 120         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 121         break;
 122     }
 123     /* Set the icon */
 124     switch(lpmb->dwStyle & MB_ICONMASK) {
 125     case MB_ICONEXCLAMATION:
 126         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 127                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_EXCLAMATION), 0);
 128         break;
 129     case MB_ICONQUESTION:
 130         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 131                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_QUESTION), 0);
 132         break;
 133     case MB_ICONASTERISK:
 134         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 135                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_ASTERISK), 0);
 136         break;
 137     case MB_ICONHAND:
 138       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 139                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_HAND), 0);
 140       break;
 141     case MB_USERICON:
 142       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 143                           (WPARAM)LoadIconW(lpmb->hInstance, lpmb->lpszIcon), 0);
 144       break;
 145     default:
 146         /* By default, Windows 95/98/NT do not associate an icon to message boxes.
 147          * So wine should do the same.
 148          */
 149         break;
 150     }
 151
 152     /* Position everything */
 153     GetWindowRect(hwnd, &rect);
 154     borheight = rect.bottom - rect.top;
 155     borwidth  = rect.right - rect.left;
 156     GetClientRect(hwnd, &rect);
 157     borheight -= rect.bottom - rect.top;
 158     borwidth  -= rect.right - rect.left;
 159
 160     /* Get the icon height */
 161     GetWindowRect(GetDlgItem(hwnd, MSGBOX_IDICON), &rect);
 162     MapWindowPoints(0, hwnd, (LPPOINT)&rect, 2);
 163     if (!(lpmb->dwStyle & MB_ICONMASK))
 164     {
 165         rect.bottom = rect.top;
 166         rect.right = rect.left;
 167     }
 168     iheight = rect.bottom - rect.top;
 169     ileft = rect.left;
 170     iwidth = rect.right - ileft;
 171
 172     hdc = GetDC(hwnd);
 173     if (hFont)
 174         hPrevFont = SelectObject(hdc, hFont);
 175
 176     /* Get the number of visible buttons and their size */
 177     bh = bw = 1; /* Minimum button sizes */
 178     for (buttons = 0, i = 1; i < 8; i++)
 179     {
 180         hItem = GetDlgItem(hwnd, i);
 181         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE)
 182         {
 183             WCHAR buttonText[1024];
 184             int w, h;
 185             buttons++;
 186             if (GetWindowTextW(hItem, buttonText, 1024))
 187             {
 188                 DrawTextW( hdc, buttonText, -1, &rect, DT_LEFT | DT_EXPANDTABS | DT_CALCRECT);
 189                 h = rect.bottom - rect.top;
 190                 w = rect.right - rect.left;
 191                 if (h > bh) bh = h;
 192                 if (w > bw)  bw = w ;
 193             }
 194         }
 195     }
 196     bw = max(bw, bh * 2);
 197     /* Button white space */
 198     bh = bh * 2;
 199     bw = bw * 2;
 200     bspace = bw/3; /* Space between buttons */
 201
 202     /* Get the text size */
 203     GetClientRect(GetDlgItem(hwnd, MSGBOX_IDTEXT), &rect);
 204     rect.top = rect.left = rect.bottom = 0;
 205     DrawTextW( hdc, lpszText, -1, &rect,
 206                DT_LEFT | DT_EXPANDTABS | DT_WORDBREAK | DT_CALCRECT);
 207     /* Min text width corresponds to space for the buttons */
 208     tleft = ileft;
 209     if (iwidth) tleft += ileft + iwidth;
 210     twidth = max((bw + bspace) * buttons + bspace - tleft, rect.right);
 211     theight = rect.bottom;
 212
 213     if (hFont)
 214         SelectObject(hdc, hPrevFont);
 215     ReleaseDC(hItem, hdc);
 216
 217     tiheight = 16 + max(iheight, theight);
 218     wwidth  = tleft + twidth + ileft + borwidth;
 219     wheight = 8 + tiheight + bh + borheight;
 220
 221     /* Resize the window */
 222     SetWindowPos(hwnd, 0, 0, 0, wwidth, wheight,
 223                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 224
 225     /* Position the icon */
 226     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDICON), 0, ileft, (tiheight - iheight) / 2, 0, 0,
 227                  SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 228
 229     /* Position the text */
 230     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDTEXT), 0, tleft, (tiheight - theight) / 2, twidth, theight,
 231                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 232
 233     /* Position the buttons */
 234     bpos = (wwidth - (bw + bspace) * buttons + bspace) / 2;
 235     for (buttons = i = 0; i < 7; i++) {
 236         /* some arithmetic to get the right order for YesNoCancel windows */
 237         hItem = GetDlgItem(hwnd, (i + 5) % 7 + 1);
 238         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE) {
 239             if (buttons++ == ((lpmb->dwStyle & MB_DEFMASK) >> 8)) {
 240                 SetFocus(hItem);
 241                 SendMessageW( hItem, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
 242             }
 243             SetWindowPos(hItem, 0, bpos, tiheight, bw, bh,
 244                          SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOREDRAW);
 245             bpos += bw + bspace;
 246         }
 247     }
 248
 249     /* handle modal MessageBoxes */
 250     if (lpmb->dwStyle & (MB_TASKMODAL|MB_SYSTEMMODAL))
 251     {
 252         FIXME("%s modal msgbox ! Not modal yet.\n",
 253                 lpmb->dwStyle & MB_TASKMODAL ? "task" : "system");
 254         /* Probably do EnumTaskWindows etc. here for TASKMODAL
 255          * and work your way up to the top - I'm lazy (HWND_TOP) */
 256         SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
 257                         SWP_NOSIZE | SWP_NOMOVE);
 258         if (lpmb->dwStyle & MB_TASKMODAL)
 259             /* at least MB_TASKMODAL seems to imply a ShowWindow */
 260             ShowWindow(hwnd, SW_SHOW);
 261     }
 262     if (lpmb->dwStyle & MB_APPLMODAL)
 263         FIXME("app modal msgbox ! Not modal yet.\n");
 264
 265     return hFont;
 266 }
 267
 268
 269 /**************************************************************************
 270  *           MSGBOX_DlgProc
 271  *
 272  * Dialog procedure for message boxes.
 273  */
 274 static INT_PTR CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
 275                                         WPARAM wParam, LPARAM lParam )
 276 {
 277   HFONT hFont;
 278
 279   switch(message) {
 280    case WM_INITDIALOG:
 281    {
 282        LPMSGBOXPARAMSW mbp = (LPMSGBOXPARAMSW)lParam;
 283        SetWindowContextHelpId(hwnd, mbp->dwContextHelpId);
 284        hFont = MSGBOX_OnInit(hwnd, mbp);
 285        SetPropA(hwnd, "WINE_MSGBOX_HFONT", (HANDLE)hFont);
 286        SetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK", (HANDLE)mbp->lpfnMsgBoxCallback);
 287        break;
 288    }
 289
 290    case WM_COMMAND:
 291     switch (LOWORD(wParam))
 292     {
 293      case IDOK:
 294      case IDCANCEL:
 295      case IDABORT:
 296      case IDRETRY:
 297      case IDIGNORE:
 298      case IDYES:
 299      case IDNO:
 300       hFont = GetPropA(hwnd, "WINE_MSGBOX_HFONT");
 301       EndDialog(hwnd, wParam);
 302       if (hFont)
 303           DeleteObject(hFont);
 304       break;
 305     }
 306     break;
 307
 308     case WM_HELP:
 309     {
 310         MSGBOXCALLBACK callback = (MSGBOXCALLBACK)GetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK");
 311         HELPINFO hi;
 312
 313         memcpy(&hi, (void *)lParam, sizeof(hi));
 314         hi.dwContextId = GetWindowContextHelpId(hwnd);
 315
 316         if (callback)
 317             callback(&hi);
 318         else
 319             SendMessageW(GetWindow(hwnd, GW_OWNER), WM_HELP, 0, (LPARAM)&hi);
 320         break;
 321    }
 322
 323    default:
 324      /* Ok. Ignore all the other messages */
 325      TRACE("Message number 0x%04x is being ignored.\n", message);
 326     break;
 327   }
 328   return 0;
 329 }
 330
 331
 332 /**************************************************************************
 333  *              MessageBoxA (USER32.@)
 334  *
 335  * NOTES
 336  *   The WARN is here to help debug erroneous MessageBoxes
 337  *   Use: -debugmsg warn+dialog,+relay
 338  */
 339 INT WINAPI MessageBoxA(HWND hWnd, LPCSTR text, LPCSTR title, UINT type)
 340 {
 341     return MessageBoxExA(hWnd, text, title, type, LANG_NEUTRAL);
 342 }
 343
 344
 345 /**************************************************************************
 346  *              MessageBoxW (USER32.@)
 347  */
 348 INT WINAPI MessageBoxW( HWND hwnd, LPCWSTR text, LPCWSTR title, UINT type )
 349 {
 350     return MessageBoxExW(hwnd, text, title, type, LANG_NEUTRAL);
 351 }
 352
 353
 354 /**************************************************************************
 355  *              MessageBoxExA (USER32.@)
 356  */
 357 INT WINAPI MessageBoxExA( HWND hWnd, LPCSTR text, LPCSTR title,
 358                               UINT type, WORD langid )
 359 {
 360     MSGBOXPARAMSA msgbox;
 361
 362     msgbox.cbSize = sizeof(msgbox);
 363     msgbox.hwndOwner = hWnd;
 364     msgbox.hInstance = 0;
 365     msgbox.lpszText = text;
 366     msgbox.lpszCaption = title;
 367     msgbox.dwStyle = type;
 368     msgbox.lpszIcon = NULL;
 369     msgbox.dwContextHelpId = 0;
 370     msgbox.lpfnMsgBoxCallback = NULL;
 371     msgbox.dwLanguageId = langid;
 372
 373     return MessageBoxIndirectA(&msgbox);
 374 }
 375
 376 /**************************************************************************
 377  *              MessageBoxExW (USER32.@)
 378  */
 379 INT WINAPI MessageBoxExW( HWND hWnd, LPCWSTR text, LPCWSTR title,
 380                               UINT type, WORD langid )
 381 {
 382     MSGBOXPARAMSW msgbox;
 383
 384     msgbox.cbSize = sizeof(msgbox);
 385     msgbox.hwndOwner = hWnd;
 386     msgbox.hInstance = 0;
 387     msgbox.lpszText = text;
 388     msgbox.lpszCaption = title;
 389     msgbox.dwStyle = type;
 390     msgbox.lpszIcon = NULL;
 391     msgbox.dwContextHelpId = 0;
 392     msgbox.lpfnMsgBoxCallback = NULL;
 393     msgbox.dwLanguageId = langid;
 394
 395     return MessageBoxIndirectW(&msgbox);
 396 }
 397
 398 /**************************************************************************
 399  *              MessageBoxIndirectA (USER32.@)
 400  */
 401 INT WINAPI MessageBoxIndirectA( LPMSGBOXPARAMSA msgbox )
 402 {
 403     MSGBOXPARAMSW msgboxW;
 404     UNICODE_STRING textW, captionW, iconW;
 405     int ret;
 406
 407     if (HIWORD(msgbox->lpszText))
 408         RtlCreateUnicodeStringFromAsciiz(&textW, msgbox->lpszText);
 409     else
 410         textW.Buffer = (LPWSTR)msgbox->lpszText;
 411     if (HIWORD(msgbox->lpszCaption))
 412         RtlCreateUnicodeStringFromAsciiz(&captionW, msgbox->lpszCaption);
 413     else
 414         captionW.Buffer = (LPWSTR)msgbox->lpszCaption;
 415     if (HIWORD(msgbox->lpszIcon))
 416         RtlCreateUnicodeStringFromAsciiz(&iconW, msgbox->lpszIcon);
 417     else
 418         iconW.Buffer = (LPWSTR)msgbox->lpszIcon;
 419
 420     msgboxW.cbSize = sizeof(msgboxW);
 421     msgboxW.hwndOwner = msgbox->hwndOwner;
 422     msgboxW.hInstance = msgbox->hInstance;
 423     msgboxW.lpszText = textW.Buffer;
 424     msgboxW.lpszCaption = captionW.Buffer;
 425     msgboxW.dwStyle = msgbox->dwStyle;
 426     msgboxW.lpszIcon = iconW.Buffer;
 427     msgboxW.dwContextHelpId = msgbox->dwContextHelpId;
 428     msgboxW.lpfnMsgBoxCallback = msgbox->lpfnMsgBoxCallback;
 429     msgboxW.dwLanguageId = msgbox->dwLanguageId;
 430
 431     ret = MessageBoxIndirectW(&msgboxW);
 432
 433     if (HIWORD(textW.Buffer)) RtlFreeUnicodeString(&textW);
 434     if (HIWORD(captionW.Buffer)) RtlFreeUnicodeString(&captionW);
 435     if (HIWORD(iconW.Buffer)) RtlFreeUnicodeString(&iconW);
 436     return ret;
 437 }
 438
 439 /**************************************************************************
 440  *              MessageBoxIndirectW (USER32.@)
 441  */
 442 INT WINAPI MessageBoxIndirectW( LPMSGBOXPARAMSW msgbox )
 443 {
 444     LPVOID tmplate;
 445     HRSRC hRes;
 446     static const WCHAR msg_box_res_nameW[] = { 'M','S','G','B','O','X',0 };
 447
 448     if (!(hRes = FindResourceExW(user32_module, (LPWSTR)RT_DIALOG,
 449                                  msg_box_res_nameW, msgbox->dwLanguageId)))
 450         return 0;
 451     if (!(tmplate = (LPVOID)LoadResource(user32_module, hRes)))
 452         return 0;
 453
 454     return DialogBoxIndirectParamW(msgbox->hInstance, tmplate, msgbox->hwndOwner,
 455                                    MSGBOX_DlgProc, (LPARAM)msgbox);
 456 }