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