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 <string.h>
  22
  23 #include "windef.h"
  24 #include "wingdi.h"
  25 #include "wine/winbase16.h"
  26 #include "wine/winuser16.h"
  27 #include "dlgs.h"
  28 #include "heap.h"
  29 #include "user.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  33
  34 #define MSGBOX_IDICON 1088
  35 #define MSGBOX_IDTEXT 100
  36
  37 static HFONT MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSA lpmb)
  38 {
  39     static HFONT hFont = 0, hPrevFont = 0;
  40     RECT rect;
  41     HWND hItem;
  42     HDC hdc;
  43     int i, buttons;
  44     int bspace, bw, bh, theight, tleft, wwidth, wheight, bpos;
  45     int borheight, borwidth, iheight, ileft, iwidth, twidth, tiheight;
  46     LPCSTR lpszText;
  47     char buf[256];
  48
  49     if (TWEAK_WineLook >= WIN95_LOOK) {
  50         NONCLIENTMETRICSA nclm;
  51         nclm.cbSize = sizeof(NONCLIENTMETRICSA);
  52         SystemParametersInfoA (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);
  53         hFont = CreateFontIndirectA (&nclm.lfMessageFont);
  54         /* set button font */
  55         for (i=1; i < 8; i++)
  56             SendDlgItemMessageA (hwnd, i, WM_SETFONT, (WPARAM)hFont, 0);
  57         /* set text font */
  58         SendDlgItemMessageA (hwnd, MSGBOX_IDTEXT, WM_SETFONT, (WPARAM)hFont, 0);
  59     }
  60     if (HIWORD(lpmb->lpszCaption)) {
  61        SetWindowTextA(hwnd, lpmb->lpszCaption);
  62     } else {
  63        if (LoadStringA(lpmb->hInstance, LOWORD(lpmb->lpszCaption), buf, sizeof(buf)))
  64           SetWindowTextA(hwnd, buf);
  65     }
  66     if (HIWORD(lpmb->lpszText)) {
  67        lpszText = lpmb->lpszText;
  68     } else {
  69        lpszText = buf;
  70        if (!LoadStringA(lpmb->hInstance, LOWORD(lpmb->lpszText), buf, sizeof(buf)))
  71           *buf = 0;     /* FIXME ?? */
  72     }
  73     SetWindowTextA(GetDlgItem(hwnd, MSGBOX_IDTEXT), lpszText);
  74
  75     /* Hide not selected buttons */
  76     switch(lpmb->dwStyle & MB_TYPEMASK) {
  77     case MB_OK:
  78         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
  79         /* fall through */
  80     case MB_OKCANCEL:
  81         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
  82         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
  83         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
  84         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
  85         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
  86         break;
  87     case MB_ABORTRETRYIGNORE:
  88         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
  89         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
  90         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
  91         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
  92         break;
  93     case MB_YESNO:
  94         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
  95         /* fall through */
  96     case MB_YESNOCANCEL:
  97         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
  98         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
  99         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
 100         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 101         break;
 102     case MB_RETRYCANCEL:
 103         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 104         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 105         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 106         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 107         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 108         break;
 109     }
 110     /* Set the icon */
 111     switch(lpmb->dwStyle & MB_ICONMASK) {
 112     case MB_ICONEXCLAMATION:
 113         SendDlgItemMessageA(hwnd, stc1, STM_SETICON, LoadIconA(0, IDI_EXCLAMATIONA), 0);
 114         break;
 115     case MB_ICONQUESTION:
 116         SendDlgItemMessageA(hwnd, stc1, STM_SETICON, LoadIconA(0, IDI_QUESTIONA), 0);
 117         break;
 118     case MB_ICONASTERISK:
 119         SendDlgItemMessageA(hwnd, stc1, STM_SETICON, LoadIconA(0, IDI_ASTERISKA), 0);
 120         break;
 121     case MB_ICONHAND:
 122       SendDlgItemMessageA(hwnd, stc1, STM_SETICON, LoadIconA(0, IDI_HANDA), 0);
 123       break;
 124     default:
 125         /* By default, Windows 95/98/NT do not associate an icon to message boxes.
 126          * So wine should do the same.
 127          */
 128         break;
 129     }
 130
 131     /* Position everything */
 132     GetWindowRect(hwnd, &rect);
 133     borheight = rect.bottom - rect.top;
 134     borwidth  = rect.right - rect.left;
 135     GetClientRect(hwnd, &rect);
 136     borheight -= rect.bottom - rect.top;
 137     borwidth  -= rect.right - rect.left;
 138
 139     /* Get the icon height */
 140     GetWindowRect(GetDlgItem(hwnd, MSGBOX_IDICON), &rect);
 141     MapWindowPoints(0, hwnd, (LPPOINT)&rect, 2);
 142     iheight = rect.bottom - rect.top;
 143     ileft = rect.left;
 144     iwidth = rect.right - ileft;
 145
 146     hdc = GetDC(hwnd);
 147     if (hFont)
 148         hPrevFont = SelectObject(hdc, hFont);
 149
 150     /* Get the number of visible buttons and their size */
 151     bh = bw = 1; /* Minimum button sizes */
 152     for (buttons = 0, i = 1; i < 8; i++)
 153     {
 154         hItem = GetDlgItem(hwnd, i);
 155         if (GetWindowLongA(hItem, GWL_STYLE) & WS_VISIBLE)
 156         {
 157             char buttonText[1024];
 158             int w, h;
 159             buttons++;
 160             if (GetWindowTextA(hItem, buttonText, sizeof buttonText))
 161             {
 162                 DrawTextA( hdc, buttonText, -1, &rect, DT_LEFT | DT_EXPANDTABS | DT_CALCRECT);
 163                 h = rect.bottom - rect.top;
 164                 w = rect.right - rect.left;
 165                 if (h > bh) bh = h;
 166                 if (w > bw)  bw = w ;
 167             }
 168         }
 169     }
 170     bw = max(bw, bh * 2);
 171     /* Button white space */
 172     bh = bh * 2;
 173     bw = bw * 2;
 174     bspace = bw/3; /* Space between buttons */
 175
 176     /* Get the text size */
 177     GetClientRect(GetDlgItem(hwnd, MSGBOX_IDTEXT), &rect);
 178     rect.top = rect.left = rect.bottom = 0;
 179     DrawTextA( hdc, lpszText, -1, &rect,
 180                DT_LEFT | DT_EXPANDTABS | DT_WORDBREAK | DT_CALCRECT);
 181     /* Min text width corresponds to space for the buttons */
 182     tleft = 2 * ileft + iwidth;
 183     twidth = max((bw + bspace) * buttons + bspace - tleft, rect.right);
 184     theight = rect.bottom;
 185
 186     if (hFont)
 187         SelectObject(hdc, hPrevFont);
 188     ReleaseDC(hItem, hdc);
 189
 190     tiheight = 16 + max(iheight, theight);
 191     wwidth  = tleft + twidth + ileft + borwidth;
 192     wheight = 8 + tiheight + bh + borheight;
 193
 194     /* Resize the window */
 195     SetWindowPos(hwnd, 0, 0, 0, wwidth, wheight,
 196                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 197
 198     /* Position the icon */
 199     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDICON), 0, ileft, (tiheight - iheight) / 2, 0, 0,
 200                  SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 201
 202     /* Position the text */
 203     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDTEXT), 0, tleft, (tiheight - theight) / 2, twidth, theight,
 204                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 205
 206     /* Position the buttons */
 207     bpos = (wwidth - (bw + bspace) * buttons + bspace) / 2;
 208     for (buttons = i = 0; i < 7; i++) {
 209         /* some arithmetic to get the right order for YesNoCancel windows */
 210         hItem = GetDlgItem(hwnd, (i + 5) % 7 + 1);
 211         if (GetWindowLongA(hItem, GWL_STYLE) & WS_VISIBLE) {
 212             if (buttons++ == ((lpmb->dwStyle & MB_DEFMASK) >> 8)) {
 213                 SetFocus(hItem);
 214                 SendMessageA( hItem, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
 215             }
 216             SetWindowPos(hItem, 0, bpos, tiheight, bw, bh,
 217                          SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOREDRAW);
 218             bpos += bw + bspace;
 219         }
 220     }
 221
 222     /* handle modal MessageBoxes */
 223     if (lpmb->dwStyle & (MB_TASKMODAL|MB_SYSTEMMODAL))
 224     {
 225         FIXME("%s modal msgbox ! Not modal yet.\n",
 226                 lpmb->dwStyle & MB_TASKMODAL ? "task" : "system");
 227         /* Probably do EnumTaskWindows etc. here for TASKMODAL
 228          * and work your way up to the top - I'm lazy (HWND_TOP) */
 229         SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
 230                         SWP_NOSIZE | SWP_NOMOVE);
 231         if (lpmb->dwStyle & MB_TASKMODAL)
 232             /* at least MB_TASKMODAL seems to imply a ShowWindow */
 233             ShowWindow(hwnd, SW_SHOW);
 234     }
 235     if (lpmb->dwStyle & MB_APPLMODAL)
 236         FIXME("app modal msgbox ! Not modal yet.\n");
 237
 238     return hFont;
 239 }
 240
 241
 242 /**************************************************************************
 243  *           MSGBOX_DlgProc
 244  *
 245  * Dialog procedure for message boxes.
 246  */
 247 static LRESULT CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
 248                                         WPARAM wParam, LPARAM lParam )
 249 {
 250   static HFONT hFont;
 251   switch(message) {
 252    case WM_INITDIALOG:
 253     hFont = MSGBOX_OnInit(hwnd, (LPMSGBOXPARAMSA)lParam);
 254     return 0;
 255
 256    case WM_COMMAND:
 257     switch (wParam)
 258     {
 259      case IDOK:
 260      case IDCANCEL:
 261      case IDABORT:
 262      case IDRETRY:
 263      case IDIGNORE:
 264      case IDYES:
 265      case IDNO:
 266       EndDialog(hwnd, wParam);
 267       if (hFont)
 268           DeleteObject(hFont);
 269       break;
 270     }
 271
 272    default:
 273      /* Ok. Ignore all the other messages */
 274      TRACE("Message number 0x%04x is being ignored.\n", message);
 275     break;
 276   }
 277   return 0;
 278 }
 279
 280
 281 /**************************************************************************
 282  *              MessageBoxA (USER32.@)
 283  *
 284  * NOTES
 285  *   The WARN is here to help debug erroneous MessageBoxes
 286  *   Use: -debugmsg warn+dialog,+relay
 287  */
 288 INT WINAPI MessageBoxA(HWND hWnd, LPCSTR text, LPCSTR title, UINT type)
 289 {
 290     LPVOID template;
 291     HRSRC hRes;
 292     MSGBOXPARAMSA mbox;
 293
 294     WARN("Messagebox\n");
 295
 296     if(!(hRes = FindResourceA(GetModuleHandleA("USER32"), "MSGBOX", RT_DIALOGA)))
 297         return 0;
 298     if(!(template = (LPVOID)LoadResource(GetModuleHandleA("USER32"), hRes)))
 299         return 0;
 300
 301     if (!text) text="<WINE-NULL>";
 302     if (!title)
 303       title="Error";
 304     mbox.lpszCaption = title;
 305     mbox.lpszText  = text;
 306     mbox.dwStyle  = type;
 307     return DialogBoxIndirectParamA( GetWindowLongA(hWnd,GWL_HINSTANCE), template,
 308                                       hWnd, (DLGPROC)MSGBOX_DlgProc, (LPARAM)&mbox );
 309 }
 310
 311
 312 /**************************************************************************
 313  *              MessageBoxW (USER32.@)
 314  */
 315 INT WINAPI MessageBoxW( HWND hwnd, LPCWSTR text, LPCWSTR title,
 316                             UINT type )
 317 {
 318     LPSTR titleA = HEAP_strdupWtoA( GetProcessHeap(), 0, title );
 319     LPSTR textA  = HEAP_strdupWtoA( GetProcessHeap(), 0, text );
 320     INT ret;
 321
 322     WARN("Messagebox\n");
 323
 324     ret = MessageBoxA( hwnd, textA, titleA, type );
 325     HeapFree( GetProcessHeap(), 0, titleA );
 326     HeapFree( GetProcessHeap(), 0, textA );
 327     return ret;
 328 }
 329
 330
 331 /**************************************************************************
 332  *              MessageBoxExA (USER32.@)
 333  */
 334 INT WINAPI MessageBoxExA( HWND hWnd, LPCSTR text, LPCSTR title,
 335                               UINT type, WORD langid )
 336 {
 337     WARN("Messagebox\n");
 338     /* ignore language id for now */
 339     return MessageBoxA(hWnd,text,title,type);
 340 }
 341
 342 /**************************************************************************
 343  *              MessageBoxExW (USER32.@)
 344  */
 345 INT WINAPI MessageBoxExW( HWND hWnd, LPCWSTR text, LPCWSTR title,
 346                               UINT type, WORD langid )
 347 {
 348     WARN("Messagebox\n");
 349     /* ignore language id for now */
 350     return MessageBoxW(hWnd,text,title,type);
 351 }
 352
 353 /**************************************************************************
 354  *              MessageBoxIndirectA (USER32.@)
 355  */
 356 INT WINAPI MessageBoxIndirectA( LPMSGBOXPARAMSA msgbox )
 357 {
 358     LPVOID template;
 359     HRSRC hRes;
 360
 361     WARN("Messagebox\n");
 362
 363     if(!(hRes = FindResourceA(GetModuleHandleA("USER32"), "MSGBOX", RT_DIALOGA)))
 364         return 0;
 365     if(!(template = (LPVOID)LoadResource(GetModuleHandleA("USER32"), hRes)))
 366         return 0;
 367
 368     return DialogBoxIndirectParamA( msgbox->hInstance, template,
 369                                       msgbox->hwndOwner, (DLGPROC)MSGBOX_DlgProc,
 370                                       (LPARAM)msgbox );
 371 }
 372
 373 /**************************************************************************
 374  *              MessageBoxIndirectW (USER32.@)
 375  */
 376 INT WINAPI MessageBoxIndirectW( LPMSGBOXPARAMSW msgbox )
 377 {
 378     MSGBOXPARAMSA       msgboxa;
 379     memcpy(&msgboxa,msgbox,sizeof(msgboxa));
 380     msgboxa.lpszCaption = HEAP_strdupWtoA( GetProcessHeap(), 0, msgbox->lpszCaption );
 381     msgboxa.lpszText = HEAP_strdupWtoA( GetProcessHeap(), 0, msgbox->lpszText );
 382     msgboxa.lpszIcon = HEAP_strdupWtoA( GetProcessHeap(), 0, msgbox->lpszIcon );
 383     return MessageBoxIndirectA(&msgboxa);
 384 }