reactos/subsys/system/notepad/main.c

   1 /*
   2  *  Notepad
   3  *
   4  *  Copyright 2000 Mike McCormack <Mike_McCormack@looksmart.com.au>
   5  *  Copyright 1997,98 Marcel Baur <mbaur@g26.ethz.ch>
   6  *  Copyright 2002 Sylvain Petreolle <spetreolle@yahoo.fr>
   7  *  Copyright 2002 Andriy Palamarchuk
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  */
  24
  25 #define UNICODE
  26 #define _UNICODE
  27
  28 #define _CRT_SECURE_NO_DEPRECATE
  29
  30 #include <windows.h>
  31 #include <stdio.h>
  32 #include <tchar.h>
  33
  34 #include "main.h"
  35 #include "dialog.h"
  36 #include "notepad_res.h"
  37
  38 NOTEPAD_GLOBALS Globals;
  39 static ATOM aFINDMSGSTRING;
  40
  41 /***********************************************************************
  42  *
  43  *           SetFileName
  44  *
  45  *  Sets Global File Name.
  46  */
  47 VOID SetFileName(LPCWSTR szFileName)
  48 {
  49     lstrcpy(Globals.szFileName, szFileName);
  50     Globals.szFileTitle[0] = 0;
  51     GetFileTitle(szFileName, Globals.szFileTitle, sizeof(Globals.szFileTitle));
  52 }
  53
  54 /***********************************************************************
  55  *
  56  *           NOTEPAD_MenuCommand
  57  *
  58  *  All handling of main menu events
  59  */
  60 static int NOTEPAD_MenuCommand(WPARAM wParam)
  61 {
  62     switch (wParam)
  63     {
  64     case CMD_NEW:               DIALOG_FileNew(); break;
  65     case CMD_OPEN:              DIALOG_FileOpen(); break;
  66     case CMD_SAVE:              DIALOG_FileSave(); break;
  67     case CMD_SAVE_AS:           DIALOG_FileSaveAs(); break;
  68     case CMD_PRINT:             DIALOG_FilePrint(); break;
  69     case CMD_PAGE_SETUP:        DIALOG_FilePageSetup(); break;
  70     case CMD_PRINTER_SETUP:     DIALOG_FilePrinterSetup();break;
  71     case CMD_EXIT:              DIALOG_FileExit(); break;
  72
  73     case CMD_UNDO:             DIALOG_EditUndo(); break;
  74     case CMD_CUT:              DIALOG_EditCut(); break;
  75     case CMD_COPY:             DIALOG_EditCopy(); break;
  76     case CMD_PASTE:            DIALOG_EditPaste(); break;
  77     case CMD_DELETE:           DIALOG_EditDelete(); break;
  78     case CMD_SELECT_ALL:       DIALOG_EditSelectAll(); break;
  79     case CMD_TIME_DATE:        DIALOG_EditTimeDate();break;
  80
  81     case CMD_SEARCH:           DIALOG_Search(); break;
  82     case CMD_SEARCH_NEXT:      DIALOG_SearchNext(); break;
  83     case CMD_REPLACE:          DIALOG_Replace(); break;
  84     case CMD_GOTO:             DIALOG_GoTo(); break;
  85
  86     case CMD_WRAP:             DIALOG_EditWrap(); break;
  87     case CMD_FONT:             DIALOG_SelectFont(); break;
  88
  89     case CMD_HELP_CONTENTS:    DIALOG_HelpContents(); break;
  90     case CMD_HELP_SEARCH:      DIALOG_HelpSearch(); break;
  91     case CMD_HELP_ON_HELP:     DIALOG_HelpHelp(); break;
  92     case CMD_LICENSE:          DIALOG_HelpLicense(); break;
  93     case CMD_NO_WARRANTY:      DIALOG_HelpNoWarranty(); break;
  94     case CMD_ABOUT_WINE:       DIALOG_HelpAboutWine(); break;
  95
  96     default:
  97         break;
  98     }
  99    return 0;
 100 }
 101
 102 /***********************************************************************
 103  *
 104  *           NOTEPAD_FindTextAt
 105  */
 106
 107 static BOOL NOTEPAD_FindTextAt(FINDREPLACE *pFindReplace, LPCTSTR pszText, int iTextLength, DWORD dwPosition)
 108 {
 109     BOOL bMatches;
 110     int iTargetLength;
 111
 112     iTargetLength = _tcslen(pFindReplace->lpstrFindWhat);
 113
 114     /* Make proper comparison */
 115     if (pFindReplace->Flags & FR_MATCHCASE)
 116         bMatches = !_tcsncmp(&pszText[dwPosition], pFindReplace->lpstrFindWhat, iTargetLength);
 117     else
 118         bMatches = !_tcsnicmp(&pszText[dwPosition], pFindReplace->lpstrFindWhat, iTargetLength);
 119
 120     if (bMatches && pFindReplace->Flags & FR_WHOLEWORD)
 121     {
 122         if ((dwPosition > 0) && !_istspace(pszText[dwPosition-1]))
 123             bMatches = FALSE;
 124         if ((dwPosition < iTextLength - 1) && !_istspace(pszText[dwPosition+1]))
 125             bMatches = FALSE;
 126     }
 127
 128     return bMatches;
 129 }
 130
 131 /***********************************************************************
 132  *
 133  *           NOTEPAD_FindNext
 134  */
 135
 136 static BOOL NOTEPAD_FindNext(FINDREPLACE *pFindReplace, BOOL bReplace, BOOL bShowAlert)
 137 {
 138     int iTextLength, iTargetLength;
 139     int iAdjustment = 0;
 140     LPTSTR pszText = NULL;
 141     DWORD dwPosition, dwBegin, dwEnd;
 142     BOOL bMatches = FALSE;
 143     TCHAR szResource[128], szText[128];
 144     BOOL bSuccess;
 145
 146     iTargetLength = _tcslen(pFindReplace->lpstrFindWhat);
 147
 148     iTextLength = GetWindowTextLength(Globals.hEdit);
 149
 150     if (iTextLength > 0)
 151     {
 152         pszText = (LPTSTR) HeapAlloc(GetProcessHeap(), 0, (iTextLength + 1) * sizeof(TCHAR));
 153         if (!pszText)
 154             return FALSE;
 155
 156         GetWindowText(Globals.hEdit, pszText, iTextLength + 1);
 157     }
 158
 159     SendMessage(Globals.hEdit, EM_GETSEL, (WPARAM) &dwBegin, (LPARAM) &dwEnd);
 160     if (bReplace && ((dwEnd - dwBegin) == iTargetLength))
 161         {
 162         if (NOTEPAD_FindTextAt(pFindReplace, pszText, iTextLength, dwBegin))
 163                 {
 164             SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM) pFindReplace->lpstrReplaceWith);
 165             iAdjustment = _tcslen(pFindReplace->lpstrReplaceWith) - (dwEnd - dwBegin);
 166                 }
 167         }
 168
 169     dwPosition = dwEnd;
 170     while(dwPosition < iTextLength)
 171     {
 172         bMatches = NOTEPAD_FindTextAt(pFindReplace, pszText, iTextLength, dwPosition);
 173         if (bMatches)
 174             break;
 175
 176         if (pFindReplace->Flags & FR_DOWN)
 177             dwPosition++;
 178         else
 179             dwPosition--;
 180     }
 181
 182     if (bMatches)
 183     {
 184         /* Found target */
 185         if (dwPosition > dwBegin)
 186             dwPosition += iAdjustment;
 187         SendMessage(Globals.hEdit, EM_SETSEL, dwPosition, dwPosition + iTargetLength);
 188         SendMessage(Globals.hEdit, EM_SCROLLCARET, 0, 0);
 189         bSuccess = TRUE;
 190     }
 191         else
 192         {
 193         /* Can't find target */
 194         if (bShowAlert)
 195                 {
 196             LoadString(Globals.hInstance, STRING_CANNOTFIND, szResource, SIZEOF(szResource));
 197             _sntprintf(szText, SIZEOF(szText), szResource, pFindReplace->lpstrFindWhat);
 198             LoadString(Globals.hInstance, STRING_NOTEPAD, szResource, SIZEOF(szResource));
 199             MessageBox(Globals.hFindReplaceDlg, szText, szResource, MB_OK);
 200                 }
 201         bSuccess = FALSE;
 202         }
 203
 204     if (pszText)
 205         HeapFree(GetProcessHeap(), 0, pszText);
 206     return bSuccess;
 207 }
 208
 209 /***********************************************************************
 210  *
 211  *           NOTEPAD_ReplaceAll
 212  */
 213
 214 static VOID NOTEPAD_ReplaceAll(FINDREPLACE *pFindReplace)
 215 {
 216     BOOL bShowAlert = TRUE;
 217
 218     SendMessage(Globals.hEdit, EM_SETSEL, 0, 0);
 219
 220     while (NOTEPAD_FindNext(pFindReplace, TRUE, bShowAlert))
 221     {
 222         bShowAlert = FALSE;
 223         }
 224 }
 225
 226 /***********************************************************************
 227  *
 228  *           NOTEPAD_FindTerm
 229  */
 230
 231 static VOID NOTEPAD_FindTerm(VOID)
 232 {
 233     Globals.hFindReplaceDlg = NULL;
 234 }
 235
 236 /***********************************************************************
 237  * Data Initialization
 238  */
 239 static VOID NOTEPAD_InitData(VOID)
 240 {
 241     LPWSTR p = Globals.szFilter;
 242     static const WCHAR txt_files[] = { '*','.','t','x','t',0 };
 243     static const WCHAR all_files[] = { '*','.','*',0 };
 244
 245     LoadString(Globals.hInstance, STRING_TEXT_FILES_TXT, p, MAX_STRING_LEN);
 246     p += lstrlen(p) + 1;
 247     lstrcpy(p, txt_files);
 248     p += lstrlen(p) + 1;
 249     LoadString(Globals.hInstance, STRING_ALL_FILES, p, MAX_STRING_LEN);
 250     p += lstrlen(p) + 1;
 251     lstrcpy(p, all_files);
 252     p += lstrlen(p) + 1;
 253     *p = '\0';
 254 }
 255
 256 /***********************************************************************
 257  * Enable/disable items on the menu based on control state
 258  */
 259 static VOID NOTEPAD_InitMenuPopup(HMENU menu, int index)
 260 {
 261     int enable;
 262
 263     CheckMenuItem(GetMenu(Globals.hMainWnd), CMD_WRAP,
 264         MF_BYCOMMAND | (Globals.bWrapLongLines ? MF_CHECKED : MF_UNCHECKED));
 265
 266     EnableMenuItem(menu, CMD_UNDO,
 267         SendMessage(Globals.hEdit, EM_CANUNDO, 0, 0) ? MF_ENABLED : MF_GRAYED);
 268     EnableMenuItem(menu, CMD_PASTE,
 269         IsClipboardFormatAvailable(CF_TEXT) ? MF_ENABLED : MF_GRAYED);
 270     enable = SendMessage(Globals.hEdit, EM_GETSEL, 0, 0);
 271     enable = (HIWORD(enable) == LOWORD(enable)) ? MF_GRAYED : MF_ENABLED;
 272     EnableMenuItem(menu, CMD_CUT, enable);
 273     EnableMenuItem(menu, CMD_COPY, enable);
 274     EnableMenuItem(menu, CMD_DELETE, enable);
 275
 276     EnableMenuItem(menu, CMD_SELECT_ALL,
 277         GetWindowTextLength(Globals.hEdit) ? MF_ENABLED : MF_GRAYED);
 278 }
 279
 280 /***********************************************************************
 281  *
 282  *           NOTEPAD_WndProc
 283  */
 284 static LRESULT WINAPI NOTEPAD_WndProc(HWND hWnd, UINT msg, WPARAM wParam,
 285                                LPARAM lParam)
 286 {
 287     switch (msg) {
 288
 289     case WM_CREATE:
 290     {
 291         static const WCHAR editW[] = { 'e','d','i','t',0 };
 292         RECT rc;
 293         GetClientRect(hWnd, &rc);
 294         Globals.hEdit = CreateWindowEx(EDIT_EXSTYLE, editW, NULL, Globals.bWrapLongLines ? EDIT_STYLE_WRAP : EDIT_STYLE,
 295                              0, 0, rc.right, rc.bottom, hWnd,
 296                              NULL, Globals.hInstance, NULL);
 297         if (!Globals.hEdit)
 298             return -1;
 299         SendMessage(Globals.hEdit, EM_LIMITTEXT, 0, 0);
 300         if (Globals.hFont)
 301             SendMessage(Globals.hEdit, WM_SETFONT, (WPARAM)Globals.hFont, (LPARAM)TRUE);
 302         break;
 303     }
 304
 305     case WM_COMMAND:
 306         NOTEPAD_MenuCommand(LOWORD(wParam));
 307         break;
 308
 309     case WM_DESTROYCLIPBOARD:
 310         /*MessageBox(Globals.hMainWnd, "Empty clipboard", "Debug", MB_ICONEXCLAMATION);*/
 311         break;
 312
 313     case WM_CLOSE:
 314         if (DoCloseFile()) {
 315             DestroyWindow(hWnd);
 316         }
 317         break;
 318
 319     case WM_QUERYENDSESSION:
 320         if (DoCloseFile()) {
 321             return 1;
 322         }
 323         break;
 324
 325     case WM_DESTROY:
 326         PostQuitMessage(0);
 327         break;
 328
 329     case WM_SIZE:
 330         SetWindowPos(Globals.hEdit, NULL, 0, 0, LOWORD(lParam), HIWORD(lParam),
 331                      SWP_NOOWNERZORDER | SWP_NOZORDER);
 332         break;
 333
 334     case WM_SETFOCUS:
 335         SetFocus(Globals.hEdit);
 336         break;
 337
 338     case WM_DROPFILES:
 339     {
 340         WCHAR szFileName[MAX_PATH];
 341         HANDLE hDrop = (HANDLE) wParam;
 342
 343         DragQueryFile(hDrop, 0, szFileName, SIZEOF(szFileName));
 344         DragFinish(hDrop);
 345         DoOpenFile(szFileName);
 346         break;
 347     }
 348
 349     case WM_INITMENUPOPUP:
 350         NOTEPAD_InitMenuPopup((HMENU)wParam, lParam);
 351         break;
 352
 353     default:
 354         if (msg == aFINDMSGSTRING)
 355         {
 356             FINDREPLACE *pFindReplace = (FINDREPLACE *) lParam;
 357
 358             if (pFindReplace->Flags & FR_FINDNEXT)
 359                 NOTEPAD_FindNext(pFindReplace, FALSE, TRUE);
 360             else if (pFindReplace->Flags & FR_REPLACE)
 361                 NOTEPAD_FindNext(pFindReplace, TRUE, TRUE);
 362             else if (pFindReplace->Flags & FR_REPLACEALL)
 363                 NOTEPAD_ReplaceAll(pFindReplace);
 364             else if (pFindReplace->Flags & FR_DIALOGTERM)
 365                 NOTEPAD_FindTerm();
 366             break;
 367         }
 368
 369         return DefWindowProc(hWnd, msg, wParam, lParam);
 370     }
 371     return 0;
 372 }
 373
 374 static int AlertFileDoesNotExist(LPCWSTR szFileName)
 375 {
 376    int nResult;
 377    WCHAR szMessage[MAX_STRING_LEN];
 378    WCHAR szResource[MAX_STRING_LEN];
 379
 380    LoadString(Globals.hInstance, STRING_DOESNOTEXIST, szResource, SIZEOF(szResource));
 381    wsprintf(szMessage, szResource, szFileName);
 382
 383    LoadString(Globals.hInstance, STRING_NOTEPAD, szResource, SIZEOF(szResource));
 384
 385    nResult = MessageBox(Globals.hMainWnd, szMessage, szResource,
 386                         MB_ICONEXCLAMATION | MB_YESNO);
 387
 388    return(nResult);
 389 }
 390
 391 static void HandleCommandLine(LPWSTR cmdline)
 392 {
 393     WCHAR delimiter;
 394     int opt_print=0;
 395
 396     /* skip white space */
 397     while (*cmdline == ' ') cmdline++;
 398
 399     /* skip executable name */
 400     delimiter = (*cmdline == '"' ? '"' : ' ');
 401
 402     do
 403     {
 404         cmdline++;
 405     }
 406     while (*cmdline && *cmdline != delimiter);
 407     if (*cmdline == delimiter) cmdline++;
 408
 409     while (*cmdline == ' ' || *cmdline == '-' || *cmdline == '/')
 410     {
 411         WCHAR option;
 412
 413         if (*cmdline++ == ' ') continue;
 414
 415         option = *cmdline;
 416         if (option) cmdline++;
 417         while (*cmdline == ' ') cmdline++;
 418
 419         switch(option)
 420         {
 421             case 'p':
 422             case 'P':
 423                 opt_print=1;
 424                 break;
 425         }
 426     }
 427
 428     if (*cmdline)
 429     {
 430         /* file name is passed in the command line */
 431         LPCWSTR file_name;
 432         BOOL file_exists;
 433         WCHAR buf[MAX_PATH];
 434
 435         if (cmdline[0] == '"')
 436         {
 437             cmdline++;
 438             cmdline[lstrlen(cmdline) - 1] = 0;
 439         }
 440
 441         if (FileExists(cmdline))
 442         {
 443             file_exists = TRUE;
 444             file_name = cmdline;
 445         }
 446         else
 447         {
 448             static const WCHAR txtW[] = { '.','t','x','t',0 };
 449
 450             /* try to find file with ".txt" extension */
 451             if (!lstrcmp(txtW, cmdline + lstrlen(cmdline) - lstrlen(txtW)))
 452             {
 453                 file_exists = FALSE;
 454                 file_name = cmdline;
 455             }
 456             else
 457             {
 458                 lstrcpyn(buf, cmdline, MAX_PATH - lstrlen(txtW) - 1);
 459                 lstrcat(buf, txtW);
 460                 file_name = buf;
 461                 file_exists = FileExists(buf);
 462             }
 463         }
 464
 465         if (file_exists)
 466         {
 467             DoOpenFile(file_name);
 468             InvalidateRect(Globals.hMainWnd, NULL, FALSE);
 469             if (opt_print)
 470                 DIALOG_FilePrint();
 471         }
 472         else
 473         {
 474             switch (AlertFileDoesNotExist(file_name)) {
 475             case IDYES:
 476                 DoOpenFile(file_name);
 477                 break;
 478
 479             case IDNO:
 480                 break;
 481             }
 482         }
 483      }
 484 }
 485
 486 /***********************************************************************
 487  *
 488  *           WinMain
 489  */
 490 int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
 491 {
 492     MSG        msg;
 493     HACCEL      hAccel;
 494     WNDCLASSEX class;
 495     static const WCHAR className[] = {'N','P','C','l','a','s','s',0};
 496     static const WCHAR winName[]   = {'N','o','t','e','p','a','d',0};
 497
 498     aFINDMSGSTRING = RegisterWindowMessage(FINDMSGSTRING);
 499
 500     ZeroMemory(&Globals, sizeof(Globals));
 501     Globals.hInstance       = hInstance;
 502     LoadSettings();
 503
 504     ZeroMemory(&class, sizeof(class));
 505     class.cbSize        = sizeof(class);
 506     class.lpfnWndProc   = NOTEPAD_WndProc;
 507     class.hInstance     = Globals.hInstance;
 508     class.hIcon         = LoadIcon(0, IDI_APPLICATION);
 509     class.hCursor       = LoadCursor(0, IDC_ARROW);
 510     class.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 511     class.lpszMenuName  = MAKEINTRESOURCE(MAIN_MENU);
 512     class.lpszClassName = className;
 513
 514     if (!RegisterClassEx(&class)) return FALSE;
 515
 516     /* Setup windows */
 517
 518     Globals.hMainWnd =
 519         CreateWindow(className, winName, WS_OVERLAPPEDWINDOW,
 520                      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
 521                      NULL, NULL, Globals.hInstance, NULL);
 522     if (!Globals.hMainWnd)
 523     {
 524         ShowLastError();
 525         ExitProcess(1);
 526     }
 527
 528     NOTEPAD_InitData();
 529     DIALOG_FileNew();
 530
 531     ShowWindow(Globals.hMainWnd, show);
 532     UpdateWindow(Globals.hMainWnd);
 533     DragAcceptFiles(Globals.hMainWnd, TRUE);
 534
 535     HandleCommandLine(GetCommandLine());
 536
 537     hAccel = LoadAccelerators( hInstance, MAKEINTRESOURCE(ID_ACCEL) );
 538
 539     while (GetMessage(&msg, 0, 0, 0))
 540     {
 541         if (!IsDialogMessage(Globals.hFindReplaceDlg, &msg) &&
 542             !TranslateAccelerator(Globals.hMainWnd, hAccel, &msg))
 543         {
 544             TranslateMessage(&msg);
 545             DispatchMessage(&msg);
 546         }
 547     }
 548     SaveSettings();
 549     return msg.wParam;
 550 }