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