X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7749df1f415574250a8828abd99a6868eb3071dd..7a5c8ac45abec3ae8311c227523bae0c12f128bc:/src/common/textfile.cpp diff --git a/src/common/textfile.cpp b/src/common/textfile.cpp index 711b8de6ef..adf3aa659b 100644 --- a/src/common/textfile.cpp +++ b/src/common/textfile.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: textfile.cpp +// Name: src/common/textfile.cpp // Purpose: implementation of wxTextFile class // Author: Vadim Zeitlin // Modified by: @@ -14,157 +14,99 @@ // ============================================================================ #ifdef __GNUG__ -#pragma implementation "textfile.h" + #pragma implementation "textfile.h" #endif #include "wx/wxprec.h" #ifdef __BORLANDC__ - #pragma hdrstop + #pragma hdrstop #endif //__BORLANDC__ -#include -#include -#include -#include -#include +#if !wxUSE_FILE || !wxUSE_TEXTBUFFER + #undef wxUSE_TEXTFILE + #define wxUSE_TEXTFILE 0 +#endif // wxUSE_FILE -// ============================================================================ -// wxTextFile class implementation -// ============================================================================ - -// ---------------------------------------------------------------------------- -// static variables -// ---------------------------------------------------------------------------- +#if wxUSE_TEXTFILE -// default type is the native one -const wxTextFile::Type wxTextFile::typeDefault = wxTextFile:: -#if defined(__WINDOWS__) - Type_Dos; -#elif defined(__UNIX__) - Type_Unix; -#elif defined(__WXMAC__) - Type_Mac; -#else - Type_None; - #error "wxTextFile: unsupported platform." +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/file.h" + #include "wx/log.h" #endif +#include "wx/textfile.h" -// ---------------------------------------------------------------------------- -// ctors & dtor -// ---------------------------------------------------------------------------- +// ============================================================================ +// wxTextFile class implementation +// ============================================================================ -wxTextFile::wxTextFile(const wxString& strFile) : m_strFile(strFile) +wxTextFile::wxTextFile(const wxString& strFileName) + : wxTextBuffer(strFileName) { } -wxTextFile::~wxTextFile() -{ - // m_file dtor called automatically -} // ---------------------------------------------------------------------------- // file operations // ---------------------------------------------------------------------------- -bool wxTextFile::Open(const wxString& strFile) +bool wxTextFile::OnExists() const { - m_strFile = strFile; - return Open(); + return wxFile::Exists(m_strBufferName); } -bool wxTextFile::Open() -{ - // file name must be either given in ctor or in Open(const wxString&) - wxASSERT( !m_strFile.IsEmpty() ); - - // open file in read-only mode - if ( !m_file.Open(m_strFile) ) - return FALSE; - - // read file into memory - bool bRet = Read(); - - m_file.Close(); - return bRet; -} - -// analyse some lines of the file trying to guess it's type. -// if it fails, it assumes the native type for our platform. -wxTextFile::Type wxTextFile::GuessType() const +bool wxTextFile::OnOpen(const wxString &strBufferName, wxTextBufferOpenMode OpenMode) { - // file should be opened and we must be in it's beginning - wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); - - // scan the file lines - size_t nUnix = 0, // number of '\n's alone - nDos = 0, // number of '\r\n' - nMac = 0; // number of '\r's - - // we take MAX_LINES_SCAN in the beginning, middle and the end of file - #define MAX_LINES_SCAN (10) - size_t nCount = m_aLines.Count() / 3, - nScan = nCount > 3*MAX_LINES_SCAN ? MAX_LINES_SCAN : nCount / 3; - - #define AnalyseLine(n) \ - switch ( m_aTypes[n] ) { \ - case Type_Unix: nUnix++; break; \ - case Type_Dos: nDos++; break; \ - case Type_Mac: nMac++; break; \ - default: wxFAIL_MSG(_("unknown line terminator")); \ - } - - size_t n; - for ( n = 0; n < nScan; n++ ) // the beginning - AnalyseLine(n); - for ( n = (nCount - nScan)/2; n < (nCount + nScan)/2; n++ ) - AnalyseLine(n); - for ( n = nCount - nScan; n < nCount; n++ ) - AnalyseLine(n); - - #undef AnalyseLine - - // interpret the results (@@ far from being even 50% fool proof) - if ( nDos + nUnix + nMac == 0 ) { - // no newlines at all - wxLogWarning(_("'%s' is probably a binary file."), m_strFile.c_str()); + wxFile::OpenMode FileOpenMode = wxFile::read; + + switch (OpenMode) + { + case ReadAccess : + FileOpenMode = wxFile::read; + break; + case WriteAccess : + FileOpenMode = wxFile::write; + break; + default : + wxASSERT(0); // Should not happen. + break; } - else { - #define GREATER_OF(t1, t2) n##t1 == n##t2 ? typeDefault \ - : n##t1 > n##t2 ? Type_##t1 \ - : Type_##t2 - - if ( nDos > nUnix ) - return GREATER_OF(Dos, Mac); - else if ( nDos < nUnix ) - return GREATER_OF(Unix, Mac); - else { - // nDos == nUnix - return nMac > nDos ? Type_Mac : typeDefault; - } - #undef GREATER_OF - } + return m_file.Open(strBufferName.c_str(), FileOpenMode); +} - return typeDefault; + +bool wxTextFile::OnClose() +{ + return m_file.Close(); } -bool wxTextFile::Read() + +bool wxTextFile::OnRead(wxMBConv& conv) { // file should be opened and we must be in it's beginning wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); +#if wxUSE_UNICODE + char conv_mbBuf[2]; + wchar_t conv_wcBuf[2]; + conv_mbBuf[1] = 0; +#else + (void)conv; +#endif + wxString str; char ch, chLast = '\0'; char buf[1024]; int n, nRead; - while ( !m_file.Eof() ) { + do { nRead = m_file.Read(buf, WXSIZEOF(buf)); if ( nRead == wxInvalidOffset ) { // read error (error message already given in wxFile::Read) - m_file.Close(); return FALSE; } @@ -173,8 +115,8 @@ bool wxTextFile::Read() switch ( ch ) { case '\n': // Dos/Unix line termination - m_aLines.Add(str); - m_aTypes.Add(chLast == '\r' ? Type_Dos : Type_Unix); + AddLine(str, chLast == '\r' ? wxTextFileType_Dos + : wxTextFileType_Unix); str.Empty(); chLast = '\n'; break; @@ -182,8 +124,7 @@ bool wxTextFile::Read() case '\r': if ( chLast == '\r' ) { // Mac empty line - m_aLines.Add(""); - m_aTypes.Add(Type_Mac); + AddLine(wxEmptyString, wxTextFileType_Mac); } else chLast = '\r'; @@ -192,43 +133,61 @@ bool wxTextFile::Read() default: if ( chLast == '\r' ) { // Mac line termination - m_aLines.Add(str); - m_aTypes.Add(Type_Mac); + AddLine(str, wxTextFileType_Mac); chLast = ch; +#if wxUSE_UNICODE + conv_mbBuf[0] = ch; + if (conv.MB2WC(conv_wcBuf, conv_mbBuf, 2) == (size_t)-1) + conv_wcBuf[0] = ch; + str = conv_wcBuf[0]; +#else str = ch; +#endif } else { // add to the current line +#if wxUSE_UNICODE + conv_mbBuf[0] = ch; + if (conv.MB2WC(conv_wcBuf, conv_mbBuf, 2) == (size_t)-1) + conv_wcBuf[0] = ch; + str += conv_wcBuf[0]; +#else str += ch; +#endif } } } - } + } while ( nRead == WXSIZEOF(buf) ); // anything in the last line? if ( !str.IsEmpty() ) { - m_aTypes.Add(Type_None); // no line terminator - m_aLines.Add(str); + AddLine(str, wxTextFileType_None); // no line terminator } return TRUE; } -bool wxTextFile::Write(Type typeNew) + +bool wxTextFile::OnWrite(wxTextFileType typeNew, wxMBConv& conv) { - wxTempFile fileTmp(m_strFile); + wxTempFile fileTmp(m_strBufferName); - if ( !fileTmp.IsOpened() ) { - wxLogError(_("can't write file '%s' to disk."), m_strFile.c_str()); - return FALSE; - } + if ( !fileTmp.IsOpened() ) { + wxLogError(_("can't write buffer '%s' to disk."), m_strBufferName.c_str()); + return FALSE; + } - size_t nCount = m_aLines.Count(); - for ( size_t n = 0; n < nCount; n++ ) { - fileTmp.Write(m_aLines[n] + - GetEOL(typeNew == Type_None ? m_aTypes[n] : typeNew)); - } + size_t nCount = GetLineCount(); + for ( size_t n = 0; n < nCount; n++ ) { + fileTmp.Write(GetLine(n) + + GetEOL(typeNew == wxTextFileType_None ? GetLineType(n) + : typeNew), + conv); + } - // replace the old file with this one - return fileTmp.Commit(); + // replace the old file with this one + return fileTmp.Commit(); } + +#endif // wxUSE_TEXTFILE +