VOID DIALOG_FileOpen(VOID)
{
OPENFILENAME openfilename;
TCHAR szDir[MAX_PATH];
TCHAR szPath[MAX_PATH];
ZeroMemory(&openfilename, sizeof(openfilename));
GetCurrentDirectory(SIZEOF(szDir), szDir);
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 = SIZEOF(szPath);
openfilename.lpstrInitialDir = szDir;
openfilename.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY;
openfilename.lpstrDefExt = szDefaultExt;
if (GetOpenFileName(&openfilename)) {
if (FileExists(openfilename.lpstrFile))
DoOpenFile(openfilename.lpstrFile);
else
AlertFileNotFound(openfilename.lpstrFile);
}
}
void DoOpenFile(LPCWSTR szFileName, ENCODING enc)
{
static const WCHAR dotlog[] = { '.','L','O','G',0 };
HANDLE hFile;
LPSTR pTemp;
DWORD size;
DWORD dwNumRead;
int lenW;
WCHAR* textW;
int i;
WCHAR log[5];
/* Close any files and prompt to save changes */
if (!DoCloseFile())
return;
hFile = CreateFileW(szFileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if(hFile == INVALID_HANDLE_VALUE)
{
AlertFileNotFound(szFileName);
return;
}
size = GetFileSize(hFile, NULL);
if (size == INVALID_FILE_SIZE)
{
CloseHandle(hFile);
ShowLastError();
return;
}
/* Extra memory for (WCHAR)'\0'-termination. */
pTemp = HeapAlloc(GetProcessHeap(), 0, size+2);
if (!pTemp)
{
CloseHandle(hFile);
ShowLastError();
return;
}
if (!ReadFile(hFile, pTemp, size, &dwNumRead, NULL))
{
CloseHandle(hFile);
HeapFree(GetProcessHeap(), 0, pTemp);
ShowLastError();
return;
}
CloseHandle(hFile);
size = dwNumRead;
if (enc == ENCODING_AUTO)
enc = detect_encoding_of_buffer(pTemp, size);
else if (size >= 2 && (enc==ENCODING_UTF16LE || enc==ENCODING_UTF16BE))
{
/* If UTF-16 (BE or LE) is selected, and there is a UTF-16 BOM,
* override the selection (like native Notepad).
*/
if ((BYTE)pTemp[0] == 0xff && (BYTE)pTemp[1] == 0xfe)
enc = ENCODING_UTF16LE;
else if ((BYTE)pTemp[0] == 0xfe && (BYTE)pTemp[1] == 0xff)
enc = ENCODING_UTF16BE;
}
switch (enc)
{
case ENCODING_UTF16BE:
byteswap_wide_string((WCHAR*) pTemp, size/sizeof(WCHAR));
/* Forget whether the file is BE or LE, like native Notepad. */
enc = ENCODING_UTF16LE;
/* fall through */
case ENCODING_UTF16LE:
textW = (LPWSTR)pTemp;
lenW = size/sizeof(WCHAR);
break;
default:
{
int cp = (enc==ENCODING_UTF8) ? CP_UTF8 : CP_ACP;
lenW = MultiByteToWideChar(cp, 0, pTemp, size, NULL, 0);
textW = HeapAlloc(GetProcessHeap(), 0, (lenW+1) * sizeof(WCHAR));
if (!textW)
{
ShowLastError();
HeapFree(GetProcessHeap(), 0, pTemp);
return;
}
MultiByteToWideChar(cp, 0, pTemp, size, textW, lenW);
HeapFree(GetProcessHeap(), 0, pTemp);
break;
}
}
/* Replace '\0's with spaces. Other than creating a custom control that
* can deal with '\0' characters, it's the best that can be done.
*/
for (i = 0; i < lenW; i++)
if (textW[i] == '\0')
textW[i] = ' ';
textW[lenW] = '\0';
if (lenW >= 1 && textW[0] == 0xfeff)
SetWindowTextW(Globals.hEdit, textW+1);
else
SetWindowTextW(Globals.hEdit, textW);
HeapFree(GetProcessHeap(), 0, textW);
SendMessageW(Globals.hEdit, EM_SETMODIFY, FALSE, 0);
SendMessageW(Globals.hEdit, EM_EMPTYUNDOBUFFER, 0, 0);
SetFocus(Globals.hEdit);
/* If the file starts with .LOG, add a time/date at the end and set cursor after */
if (GetWindowTextW(Globals.hEdit, log, ARRAY_SIZE(log)) && !lstrcmpW(log, dotlog))
{
static const WCHAR lfW[] = { '\r','\n',0 };
SendMessageW(Globals.hEdit, EM_SETSEL, GetWindowTextLengthW(Globals.hEdit), -1);
SendMessageW(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)lfW);
DIALOG_EditTimeDate();
SendMessageW(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)lfW);
}
SetFileNameAndEncoding(szFileName, enc);
UpdateWindowCaption();
}