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Reactos
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#include "notepad.h"
#include <assert.h>#include <commctrl.h>#include <strsafe.h>
LRESULT CALLBACK EDIT_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static const TCHAR helpfile[] = _T("notepad.hlp");static const TCHAR empty_str[] = _T("");static const TCHAR szDefaultExt[] = _T("txt");static const TCHAR txt_files[] = _T("*.txt");
/* Status bar parts index */#define SBPART_CURPOS 0#define SBPART_EOLN 1#define SBPART_ENCODING 2
/* Line endings - string resource ID mapping table */static UINT EolnToStrId[] = { STRING_CRLF, STRING_LF, STRING_CR};
/* Encoding - string resource ID mapping table */static UINT EncToStrId[] = { STRING_ANSI, STRING_UNICODE, STRING_UNICODE_BE, STRING_UTF8, STRING_UTF8_BOM};
VOID ShowLastError(VOID){ DWORD error = GetLastError(); if (error != NO_ERROR) { LPTSTR lpMsgBuf = NULL; TCHAR szTitle[MAX_STRING_LEN]; TCHAR szFallback[42], *pszMessage = szFallback;
LoadString(Globals.hInstance, STRING_ERROR, szTitle, _countof(szTitle));
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, (LPTSTR) &lpMsgBuf, 0, NULL);
if (lpMsgBuf) pszMessage = lpMsgBuf; else wsprintfW(szFallback, L"%d", error);
MessageBox(Globals.hMainWnd, pszMessage, szTitle, MB_OK | MB_ICONERROR); LocalFree(lpMsgBuf); }}
/** * Sets the caption of the main window according to Globals.szFileTitle: * (untitled) - Notepad if no file is open * [filename] - Notepad if a file is given */void UpdateWindowCaption(BOOL clearModifyAlert){ TCHAR szCaption[MAX_STRING_LEN]; TCHAR szNotepad[MAX_STRING_LEN]; TCHAR szFilename[MAX_STRING_LEN]; BOOL isModified;
if (clearModifyAlert) { /* When a file is being opened or created, there is no need to have * the edited flag shown when the file has not been edited yet. */ isModified = FALSE; } else { /* Check whether the user has modified the file or not. If we are * in the same state as before, don't change the caption. */ isModified = !!SendMessage(Globals.hEdit, EM_GETMODIFY, 0, 0); if (isModified == Globals.bWasModified) return; }
/* Remember the state for later calls */ Globals.bWasModified = isModified;
/* Load the name of the application */ LoadString(Globals.hInstance, STRING_NOTEPAD, szNotepad, _countof(szNotepad));
/* Determine if the file has been saved or if this is a new file */ if (Globals.szFileTitle[0] != 0) StringCchCopy(szFilename, _countof(szFilename), Globals.szFileTitle); else LoadString(Globals.hInstance, STRING_UNTITLED, szFilename, _countof(szFilename));
/* Update the window caption based upon whether the user has modified the file or not */ StringCbPrintf(szCaption, sizeof(szCaption), _T("%s%s - %s"), (isModified ? _T("*") : _T("")), szFilename, szNotepad);
SetWindowText(Globals.hMainWnd, szCaption);}
VOID WaitCursor(BOOL bBegin){ static HCURSOR s_hWaitCursor = NULL; static HCURSOR s_hOldCursor = NULL; static INT s_nLock = 0;
if (bBegin) { if (s_nLock++ == 0) { if (s_hWaitCursor == NULL) s_hWaitCursor = LoadCursor(NULL, IDC_WAIT); s_hOldCursor = SetCursor(s_hWaitCursor); } else { SetCursor(s_hWaitCursor); } } else { if (--s_nLock == 0) SetCursor(s_hOldCursor); }}
VOID DIALOG_StatusBarAlignParts(VOID){ static const int defaultWidths[] = {120, 120, 120}; RECT rcStatusBar; int parts[3];
GetClientRect(Globals.hStatusBar, &rcStatusBar);
parts[0] = rcStatusBar.right - (defaultWidths[1] + defaultWidths[2]); parts[1] = rcStatusBar.right - defaultWidths[2]; parts[2] = -1; // the right edge of the status bar
parts[0] = max(parts[0], defaultWidths[0]); parts[1] = max(parts[1], defaultWidths[0] + defaultWidths[1]);
SendMessageW(Globals.hStatusBar, SB_SETPARTS, _countof(parts), (LPARAM)parts);}
static VOID DIALOG_StatusBarUpdateLineEndings(VOID){ WCHAR szText[128];
LoadStringW(Globals.hInstance, EolnToStrId[Globals.iEoln], szText, _countof(szText));
SendMessageW(Globals.hStatusBar, SB_SETTEXTW, SBPART_EOLN, (LPARAM)szText);}
static VOID DIALOG_StatusBarUpdateEncoding(VOID){ WCHAR szText[128] = L"";
if (Globals.encFile != ENCODING_AUTO) { LoadStringW(Globals.hInstance, EncToStrId[Globals.encFile], szText, _countof(szText)); }
SendMessageW(Globals.hStatusBar, SB_SETTEXTW, SBPART_ENCODING, (LPARAM)szText);}
static VOID DIALOG_StatusBarUpdateAll(VOID){ DIALOG_StatusBarUpdateCaretPos(); DIALOG_StatusBarUpdateLineEndings(); DIALOG_StatusBarUpdateEncoding();}
int DIALOG_StringMsgBox(HWND hParent, int formatId, LPCTSTR szString, DWORD dwFlags){ TCHAR szMessage[MAX_STRING_LEN]; TCHAR szResource[MAX_STRING_LEN];
/* Load and format szMessage */ LoadString(Globals.hInstance, formatId, szResource, _countof(szResource)); StringCchPrintf(szMessage, _countof(szMessage), szResource, szString);
/* Load szCaption */ if ((dwFlags & MB_ICONMASK) == MB_ICONEXCLAMATION) LoadString(Globals.hInstance, STRING_ERROR, szResource, _countof(szResource)); else LoadString(Globals.hInstance, STRING_NOTEPAD, szResource, _countof(szResource));
/* Display Modal Dialog */ // if (hParent == NULL) // hParent = Globals.hMainWnd; return MessageBox(hParent, szMessage, szResource, dwFlags);}
static void AlertFileNotFound(LPCTSTR szFileName){ DIALOG_StringMsgBox(Globals.hMainWnd, STRING_NOTFOUND, szFileName, MB_ICONEXCLAMATION | MB_OK);}
static int AlertFileNotSaved(LPCTSTR szFileName){ TCHAR szUntitled[MAX_STRING_LEN];
LoadString(Globals.hInstance, STRING_UNTITLED, szUntitled, _countof(szUntitled));
return DIALOG_StringMsgBox(Globals.hMainWnd, STRING_NOTSAVED, szFileName[0] ? szFileName : szUntitled, MB_ICONQUESTION | MB_YESNOCANCEL);}
/** * Returns: * TRUE - if file exists * FALSE - if file does not exist */BOOL FileExists(LPCTSTR szFilename){ return GetFileAttributes(szFilename) != INVALID_FILE_ATTRIBUTES;}
BOOL HasFileExtension(LPCTSTR szFilename){ LPCTSTR s;
s = _tcsrchr(szFilename, _T('\\')); if (s) szFilename = s; return _tcsrchr(szFilename, _T('.')) != NULL;}
static BOOL DoSaveFile(VOID){ BOOL bRet = FALSE; HANDLE hFile; DWORD cchText;
WaitCursor(TRUE);
/* Use OPEN_ALWAYS instead of CREATE_ALWAYS in order to succeed * even if the file has HIDDEN or SYSTEM attributes */ hFile = CreateFileW(Globals.szFileName, GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { ShowLastError(); WaitCursor(FALSE); return FALSE; }
cchText = GetWindowTextLengthW(Globals.hEdit); if (cchText <= 0) { bRet = TRUE; } else { HLOCAL hLocal = (HLOCAL)SendMessageW(Globals.hEdit, EM_GETHANDLE, 0, 0); LPWSTR pszText = LocalLock(hLocal); if (pszText) { bRet = WriteText(hFile, pszText, cchText, Globals.encFile, Globals.iEoln); if (!bRet) ShowLastError();
LocalUnlock(hLocal); } else { ShowLastError(); } }
/* Truncate the file and close it */ SetEndOfFile(hFile); CloseHandle(hFile);
if (bRet) { SendMessage(Globals.hEdit, EM_SETMODIFY, FALSE, 0); SetFileName(Globals.szFileName); }
WaitCursor(FALSE); return bRet;}
/** * Returns: * TRUE - User agreed to close (both save/don't save) * FALSE - User cancelled close by selecting "Cancel" */BOOL DoCloseFile(VOID){ int nResult;
if (SendMessage(Globals.hEdit, EM_GETMODIFY, 0, 0)) { /* prompt user to save changes */ nResult = AlertFileNotSaved(Globals.szFileName); switch (nResult) { case IDYES: if(!DIALOG_FileSave()) return FALSE; break;
case IDNO: break;
case IDCANCEL: default: return FALSE; } }
SetFileName(empty_str); UpdateWindowCaption(TRUE);
return TRUE;}
VOID DoOpenFile(LPCTSTR szFileName){ HANDLE hFile; TCHAR log[5]; HLOCAL hLocal;
/* Close any files and prompt to save changes */ if (!DoCloseFile()) return;
WaitCursor(TRUE); SetWindowText(Globals.hEdit, NULL);
hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { ShowLastError(); goto done; }
/* To make loading file quicker, we use the internal handle of EDIT control */ hLocal = (HLOCAL)SendMessageW(Globals.hEdit, EM_GETHANDLE, 0, 0); if (!ReadText(hFile, &hLocal, &Globals.encFile, &Globals.iEoln)) { ShowLastError(); goto done; } SendMessageW(Globals.hEdit, EM_SETHANDLE, (WPARAM)hLocal, 0); /* No need of EM_SETMODIFY and EM_EMPTYUNDOBUFFER here. EM_SETHANDLE does instead. */
SetFocus(Globals.hEdit);
/* If the file starts with .LOG, add a time/date at the end and set cursor after * See http://web.archive.org/web/20090627165105/http://support.microsoft.com/kb/260563 */ if (GetWindowText(Globals.hEdit, log, _countof(log)) && !_tcscmp(log, _T(".LOG"))) { static const TCHAR lf[] = _T("\r\n"); SendMessage(Globals.hEdit, EM_SETSEL, GetWindowTextLength(Globals.hEdit), -1); SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)lf); DIALOG_EditTimeDate(); SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)lf); }
SetFileName(szFileName); UpdateWindowCaption(TRUE); NOTEPAD_EnableSearchMenu(); DIALOG_StatusBarUpdateAll();
done: if (hFile != INVALID_HANDLE_VALUE) CloseHandle(hFile); WaitCursor(FALSE);}
VOID DIALOG_FileNew(VOID){ /* Close any files and prompt to save changes */ if (!DoCloseFile()) return;
WaitCursor(TRUE);
SetWindowText(Globals.hEdit, NULL); SendMessage(Globals.hEdit, EM_EMPTYUNDOBUFFER, 0, 0); Globals.iEoln = EOLN_CRLF; Globals.encFile = ENCODING_DEFAULT;
NOTEPAD_EnableSearchMenu(); DIALOG_StatusBarUpdateAll();
WaitCursor(FALSE);}
VOID DIALOG_FileNewWindow(VOID){ TCHAR pszNotepadExe[MAX_PATH];
WaitCursor(TRUE);
GetModuleFileName(NULL, pszNotepadExe, _countof(pszNotepadExe)); ShellExecute(NULL, NULL, pszNotepadExe, NULL, NULL, SW_SHOWNORMAL);
WaitCursor(FALSE);}
VOID DIALOG_FileOpen(VOID){ OPENFILENAME openfilename; TCHAR szPath[MAX_PATH];
ZeroMemory(&openfilename, sizeof(openfilename));
if (Globals.szFileName[0] == 0) _tcscpy(szPath, txt_files); else _tcscpy(szPath, Globals.szFileName);
openfilename.lStructSize = sizeof(openfilename); openfilename.hwndOwner = Globals.hMainWnd; openfilename.hInstance = Globals.hInstance; openfilename.lpstrFilter = Globals.szFilter; openfilename.lpstrFile = szPath; openfilename.nMaxFile = _countof(szPath); openfilename.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY; openfilename.lpstrDefExt = szDefaultExt;
if (GetOpenFileName(&openfilename)) { if (FileExists(openfilename.lpstrFile)) DoOpenFile(openfilename.lpstrFile); else AlertFileNotFound(openfilename.lpstrFile); }}
BOOL DIALOG_FileSave(VOID){ if (Globals.szFileName[0] == 0) { return DIALOG_FileSaveAs(); } else if (DoSaveFile()) { UpdateWindowCaption(TRUE); return TRUE; } return FALSE;}
static UINT_PTRCALLBACKDIALOG_FileSaveAs_Hook(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam){ TCHAR szText[128]; HWND hCombo;
UNREFERENCED_PARAMETER(wParam);
switch(msg) { case WM_INITDIALOG: hCombo = GetDlgItem(hDlg, ID_ENCODING);
LoadString(Globals.hInstance, STRING_ANSI, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_UNICODE, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_UNICODE_BE, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_UTF8, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_UTF8_BOM, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
SendMessage(hCombo, CB_SETCURSEL, Globals.encFile, 0);
hCombo = GetDlgItem(hDlg, ID_EOLN);
LoadString(Globals.hInstance, STRING_CRLF, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_LF, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
LoadString(Globals.hInstance, STRING_CR, szText, _countof(szText)); SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM) szText);
SendMessage(hCombo, CB_SETCURSEL, Globals.iEoln, 0); break;
case WM_NOTIFY: if (((NMHDR *) lParam)->code == CDN_FILEOK) { hCombo = GetDlgItem(hDlg, ID_ENCODING); if (hCombo) Globals.encFile = (ENCODING) SendMessage(hCombo, CB_GETCURSEL, 0, 0);
hCombo = GetDlgItem(hDlg, ID_EOLN); if (hCombo) Globals.iEoln = (EOLN)SendMessage(hCombo, CB_GETCURSEL, 0, 0); } break; } return 0;}
BOOL DIALOG_FileSaveAs(VOID){ OPENFILENAME saveas; TCHAR szPath[MAX_PATH];
ZeroMemory(&saveas, sizeof(saveas));
if (Globals.szFileName[0] == 0) _tcscpy(szPath, txt_files); else _tcscpy(szPath, Globals.szFileName);
saveas.lStructSize = sizeof(OPENFILENAME); saveas.hwndOwner = Globals.hMainWnd; saveas.hInstance = Globals.hInstance; saveas.lpstrFilter = Globals.szFilter; saveas.lpstrFile = szPath; saveas.nMaxFile = _countof(szPath); saveas.Flags = OFN_PATHMUSTEXIST | OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_EXPLORER | OFN_ENABLETEMPLATE | OFN_ENABLEHOOK; saveas.lpstrDefExt = szDefaultExt; saveas.lpTemplateName = MAKEINTRESOURCE(DIALOG_ENCODING); saveas.lpfnHook = DIALOG_FileSaveAs_Hook;
if (GetSaveFileName(&saveas)) { /* HACK: Because in ROS, Save-As boxes don't check the validity * of file names and thus, here, szPath can be invalid !! We only * see its validity when we call DoSaveFile()... */ SetFileName(szPath); if (DoSaveFile()) { UpdateWindowCaption(TRUE); DIALOG_StatusBarUpdateAll(); return TRUE; } else { SetFileName(_T("")); return FALSE; } } else { return FALSE; }}
VOID DIALOG_FileExit(VOID){ PostMessage(Globals.hMainWnd, WM_CLOSE, 0, 0);}
VOID DIALOG_EditUndo(VOID){ SendMessage(Globals.hEdit, EM_UNDO, 0, 0);}
VOID DIALOG_EditCut(VOID){ SendMessage(Globals.hEdit, WM_CUT, 0, 0);}
VOID DIALOG_EditCopy(VOID){ SendMessage(Globals.hEdit, WM_COPY, 0, 0);}
VOID DIALOG_EditPaste(VOID){ SendMessage(Globals.hEdit, WM_PASTE, 0, 0);}
VOID DIALOG_EditDelete(VOID){ SendMessage(Globals.hEdit, WM_CLEAR, 0, 0);}
VOID DIALOG_EditSelectAll(VOID){ SendMessage(Globals.hEdit, EM_SETSEL, 0, -1);}
VOID DIALOG_EditTimeDate(VOID){ SYSTEMTIME st; TCHAR szDate[MAX_STRING_LEN]; TCHAR szText[MAX_STRING_LEN * 2 + 2];
GetLocalTime(&st);
GetTimeFormat(LOCALE_USER_DEFAULT, 0, &st, NULL, szDate, MAX_STRING_LEN); _tcscpy(szText, szDate); _tcscat(szText, _T(" ")); GetDateFormat(LOCALE_USER_DEFAULT, DATE_LONGDATE, &st, NULL, szDate, MAX_STRING_LEN); _tcscat(szText, szDate); SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)szText);}
VOID DoShowHideStatusBar(VOID){ /* Check if status bar object already exists. */ if (Globals.bShowStatusBar && Globals.hStatusBar == NULL) { /* Try to create the status bar */ Globals.hStatusBar = CreateStatusWindow(WS_CHILD | CCS_BOTTOM | SBARS_SIZEGRIP, NULL, Globals.hMainWnd, CMD_STATUSBAR_WND_ID);
if (Globals.hStatusBar == NULL) { ShowLastError(); return; }
/* Load the string for formatting column/row text output */ LoadString(Globals.hInstance, STRING_LINE_COLUMN, Globals.szStatusBarLineCol, MAX_PATH - 1); }
/* Update layout of controls */ SendMessageW(Globals.hMainWnd, WM_SIZE, 0, 0);
if (Globals.hStatusBar == NULL) return;
/* Update visibility of status bar */ ShowWindow(Globals.hStatusBar, (Globals.bShowStatusBar ? SW_SHOWNOACTIVATE : SW_HIDE));
/* Update status bar contents */ DIALOG_StatusBarUpdateAll();}
VOID DoCreateEditWindow(VOID){ DWORD dwStyle; int iSize; LPTSTR pTemp = NULL; BOOL bModified = FALSE;
iSize = 0;
/* If the edit control already exists, try to save its content */ if (Globals.hEdit != NULL) { /* number of chars currently written into the editor. */ iSize = GetWindowTextLength(Globals.hEdit); if (iSize) { /* Allocates temporary buffer. */ pTemp = HeapAlloc(GetProcessHeap(), 0, (iSize + 1) * sizeof(TCHAR)); if (!pTemp) { ShowLastError(); return; }
/* Recover the text into the control. */ GetWindowText(Globals.hEdit, pTemp, iSize + 1);
if (SendMessage(Globals.hEdit, EM_GETMODIFY, 0, 0)) bModified = TRUE; }
/* Restore original window procedure */ SetWindowLongPtr(Globals.hEdit, GWLP_WNDPROC, (LONG_PTR)Globals.EditProc);
/* Destroy the edit control */ DestroyWindow(Globals.hEdit); }
/* Update wrap status into the main menu and recover style flags */ dwStyle = (Globals.bWrapLongLines ? EDIT_STYLE_WRAP : EDIT_STYLE);
/* Create the new edit control */ Globals.hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, EDIT_CLASS, NULL, dwStyle, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, Globals.hMainWnd, NULL, Globals.hInstance, NULL); if (Globals.hEdit == NULL) { if (pTemp) { HeapFree(GetProcessHeap(), 0, pTemp); }
ShowLastError(); return; }
SendMessage(Globals.hEdit, WM_SETFONT, (WPARAM)Globals.hFont, FALSE); SendMessage(Globals.hEdit, EM_LIMITTEXT, 0, 0);
/* If some text was previously saved, restore it. */ if (iSize != 0) { SetWindowText(Globals.hEdit, pTemp); HeapFree(GetProcessHeap(), 0, pTemp);
if (bModified) SendMessage(Globals.hEdit, EM_SETMODIFY, TRUE, 0); }
/* Sub-class a new window callback for row/column detection. */ Globals.EditProc = (WNDPROC)SetWindowLongPtr(Globals.hEdit, GWLP_WNDPROC, (LONG_PTR)EDIT_WndProc);
/* Finally shows new edit control and set focus into it. */ ShowWindow(Globals.hEdit, SW_SHOW); SetFocus(Globals.hEdit);
/* Re-arrange controls */ PostMessageW(Globals.hMainWnd, WM_SIZE, 0, 0);}
VOID DIALOG_EditWrap(VOID){ Globals.bWrapLongLines = !Globals.bWrapLongLines;
EnableMenuItem(Globals.hMenu, CMD_GOTO, (Globals.bWrapLongLines ? MF_GRAYED : MF_ENABLED));
DoCreateEditWindow(); DoShowHideStatusBar();}
VOID DIALOG_SelectFont(VOID){ CHOOSEFONT cf; LOGFONT lf = Globals.lfFont;
ZeroMemory( &cf, sizeof(cf) ); cf.lStructSize = sizeof(cf); cf.hwndOwner = Globals.hMainWnd; cf.lpLogFont = &lf; cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT | CF_NOVERTFONTS;
if (ChooseFont(&cf)) { HFONT currfont = Globals.hFont;
Globals.hFont = CreateFontIndirect(&lf); Globals.lfFont = lf; SendMessage(Globals.hEdit, WM_SETFONT, (WPARAM)Globals.hFont, TRUE); if (currfont != NULL) DeleteObject(currfont); }}
typedef HWND (WINAPI *FINDPROC)(LPFINDREPLACE lpfr);
static VOID DIALOG_SearchDialog(FINDPROC pfnProc){ if (Globals.hFindReplaceDlg != NULL) { SetFocus(Globals.hFindReplaceDlg); return; }
if (!Globals.find.lpstrFindWhat) { ZeroMemory(&Globals.find, sizeof(Globals.find)); Globals.find.lStructSize = sizeof(Globals.find); Globals.find.hwndOwner = Globals.hMainWnd; Globals.find.lpstrFindWhat = Globals.szFindText; Globals.find.wFindWhatLen = _countof(Globals.szFindText); Globals.find.lpstrReplaceWith = Globals.szReplaceText; Globals.find.wReplaceWithLen = _countof(Globals.szReplaceText); Globals.find.Flags = FR_DOWN; }
/* We only need to create the modal FindReplace dialog which will */ /* notify us of incoming events using hMainWnd Window Messages */
Globals.hFindReplaceDlg = pfnProc(&Globals.find); assert(Globals.hFindReplaceDlg != NULL);}
VOID DIALOG_Search(VOID){ DIALOG_SearchDialog(FindText);}
VOID DIALOG_SearchNext(BOOL bDown){ if (bDown) Globals.find.Flags |= FR_DOWN; else Globals.find.Flags &= ~FR_DOWN;
if (Globals.find.lpstrFindWhat != NULL && *Globals.find.lpstrFindWhat) NOTEPAD_FindNext(&Globals.find, FALSE, TRUE); else DIALOG_Search();}
VOID DIALOG_Replace(VOID){ DIALOG_SearchDialog(ReplaceText);}
typedef struct tagGOTO_DATA{ UINT iLine; UINT cLines;} GOTO_DATA, *PGOTO_DATA;
static INT_PTRCALLBACKDIALOG_GoTo_DialogProc(HWND hwndDialog, UINT uMsg, WPARAM wParam, LPARAM lParam){ static PGOTO_DATA s_pGotoData;
switch (uMsg) { case WM_INITDIALOG: s_pGotoData = (PGOTO_DATA)lParam; SetDlgItemInt(hwndDialog, ID_LINENUMBER, s_pGotoData->iLine, FALSE); return TRUE; /* Set focus */
case WM_COMMAND: { if (LOWORD(wParam) == IDOK) { UINT iLine = GetDlgItemInt(hwndDialog, ID_LINENUMBER, NULL, FALSE); if (iLine <= 0 || s_pGotoData->cLines < iLine) /* Out of range */ { /* Show error message */ WCHAR title[128], text[256]; LoadStringW(Globals.hInstance, STRING_NOTEPAD, title, _countof(title)); LoadStringW(Globals.hInstance, STRING_LINE_NUMBER_OUT_OF_RANGE, text, _countof(text)); MessageBoxW(hwndDialog, text, title, MB_OK);
SendDlgItemMessageW(hwndDialog, ID_LINENUMBER, EM_SETSEL, 0, -1); SetFocus(GetDlgItem(hwndDialog, ID_LINENUMBER)); break; } s_pGotoData->iLine = iLine; EndDialog(hwndDialog, IDOK); } else if (LOWORD(wParam) == IDCANCEL) { EndDialog(hwndDialog, IDCANCEL); } break; } }
return 0;}
VOID DIALOG_GoTo(VOID){ GOTO_DATA GotoData; DWORD dwStart = 0, dwEnd = 0; INT ich, cch = GetWindowTextLength(Globals.hEdit);
/* Get the current line number and the total line number */ SendMessage(Globals.hEdit, EM_GETSEL, (WPARAM) &dwStart, (LPARAM) &dwEnd); GotoData.iLine = (UINT)SendMessage(Globals.hEdit, EM_LINEFROMCHAR, dwStart, 0) + 1; GotoData.cLines = (UINT)SendMessage(Globals.hEdit, EM_GETLINECOUNT, 0, 0);
/* Ask the user for line number */ if (DialogBoxParam(Globals.hInstance, MAKEINTRESOURCE(DIALOG_GOTO), Globals.hMainWnd, DIALOG_GoTo_DialogProc, (LPARAM)&GotoData) != IDOK) { return; /* Canceled */ }
--GotoData.iLine; /* Make it zero-based */
/* Get ich (the target character index) from line number */ if (GotoData.iLine <= 0) ich = 0; else if (GotoData.iLine >= GotoData.cLines) ich = cch; else ich = (INT)SendMessage(Globals.hEdit, EM_LINEINDEX, GotoData.iLine, 0);
/* EM_LINEINDEX can return -1 on failure */ if (ich < 0) ich = 0;
/* Move the caret */ SendMessage(Globals.hEdit, EM_SETSEL, ich, ich); SendMessage(Globals.hEdit, EM_SCROLLCARET, 0, 0);}
VOID DIALOG_StatusBarUpdateCaretPos(VOID){ int line, ich, col; TCHAR buff[MAX_PATH]; DWORD dwStart, dwSize;
SendMessage(Globals.hEdit, EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwSize); line = (int)SendMessage(Globals.hEdit, EM_LINEFROMCHAR, (WPARAM)dwStart, 0); ich = (int)SendMessage(Globals.hEdit, EM_LINEINDEX, (WPARAM)line, 0);
/* EM_LINEINDEX can return -1 on failure */ col = ((ich < 0) ? 0 : (dwStart - ich));
StringCchPrintf(buff, _countof(buff), Globals.szStatusBarLineCol, line + 1, col + 1); SendMessage(Globals.hStatusBar, SB_SETTEXT, SBPART_CURPOS, (LPARAM)buff);}
VOID DIALOG_ViewStatusBar(VOID){ Globals.bShowStatusBar = !Globals.bShowStatusBar; DoShowHideStatusBar();}
VOID DIALOG_HelpContents(VOID){ WinHelp(Globals.hMainWnd, helpfile, HELP_INDEX, 0);}
VOID DIALOG_HelpAboutNotepad(VOID){ TCHAR szNotepad[MAX_STRING_LEN]; TCHAR szNotepadAuthors[MAX_STRING_LEN];
LoadString(Globals.hInstance, STRING_NOTEPAD, szNotepad, _countof(szNotepad)); LoadString(Globals.hInstance, STRING_NOTEPAD_AUTHORS, szNotepadAuthors, _countof(szNotepadAuthors));
ShellAbout(Globals.hMainWnd, szNotepad, szNotepadAuthors, LoadIcon(Globals.hInstance, MAKEINTRESOURCE(IDI_NPICON)));}