X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1b6dea5de110cd0c5695949d351436048e84e7f8..59840ba3b16e4baf3228dd79c6b7ae40b55cf488:/include/wx/textfile.h diff --git a/include/wx/textfile.h b/include/wx/textfile.h index 0f9ec816a3..01fe351f28 100644 --- a/include/wx/textfile.h +++ b/include/wx/textfile.h @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: textfile.h +// Name: wx/textfile.h // Purpose: class wxTextFile to work with text files of _small_ size // (file is fully loaded in memory) and which understands CR/LF // differences between platforms. @@ -20,173 +20,44 @@ #include "wx/defs.h" -#if !wxUSE_FILE - #undef wxUSE_TEXTFILE - #define wxUSE_TEXTFILE 0 -#endif // wxUSE_FILE +#include "wx/textbuf.h" #if wxUSE_TEXTFILE -#include "wx/string.h" #include "wx/file.h" -#include "wx/dynarray.h" // ---------------------------------------------------------------------------- // wxTextFile // ---------------------------------------------------------------------------- -// the line termination type -enum wxTextFileType -{ - wxTextFileType_None, // incomplete (the last line of the file only) - wxTextFileType_Unix, // line is terminated with 'LF' = 0xA = 10 = '\n' - wxTextFileType_Dos, // 'CR' 'LF' - wxTextFileType_Mac, // 'CR' = 0xD = 13 = '\r' - wxTextFileType_Os2 // 'CR' 'LF' -}; - -WX_DEFINE_EXPORTED_ARRAY(wxTextFileType, ArrayFileType); - -class WXDLLEXPORT wxTextFile +class WXDLLEXPORT wxTextFile : public wxTextBuffer { public: - // constants and static functions - // default type for current platform (determined at compile time) - static const wxTextFileType typeDefault; - - // this function returns a string which is identical to "text" passed in - // except that the line terminator characters are changed to correspond the - // given type. Called with the default argument, the function translates - // the string to the native format (Unix for Unix, DOS for Windows, ...). - static wxString Translate(const wxString& text, - wxTextFileType type = typeDefault); - - // get the file termination string - static const wxChar *GetEOL(wxTextFileType type = typeDefault); - - // ctors - // def ctor, use Open(string) - wxTextFile() { } - // - wxTextFile(const wxString& strFile); - - // file operations - // file exists? - bool Exists() const; - // create the file if it doesn't already exist - bool Create(); - // same as Create() but with (another) file name - bool Create(const wxString& strFile); - // Open() also loads file in memory on success - bool Open(); - // same as Open() but with (another) file name - bool Open(const wxString& strFile); - // closes the file and frees memory, losing all changes - bool Close(); - // is file currently opened? - bool IsOpened() const { return m_isOpened; } - - // accessors - // get the number of lines in the file - size_t GetLineCount() const { return m_aLines.Count(); } - // the returned line may be modified (but don't add CR/LF at the end!) - wxString& GetLine(size_t n) const { return m_aLines[n]; } - wxString& operator[](size_t n) const { return m_aLines[n]; } - - // the current line has meaning only when you're using - // GetFirstLine()/GetNextLine() functions, it doesn't get updated when - // you're using "direct access" i.e. GetLine() - size_t GetCurrentLine() const { return m_nCurLine; } - void GoToLine(size_t n) { m_nCurLine = n; } - bool Eof() const { return m_nCurLine == m_aLines.Count() - 1; } - - // these methods allow more "iterator-like" traversal of the list of - // lines, i.e. you may write something like: - // for ( str = GetFirstLine(); !Eof(); str = GetNextLine() ) { ... } - - // NB: const is commented out because not all compilers understand - // 'mutable' keyword yet (m_nCurLine should be mutable) - wxString& GetFirstLine() /* const */ { return m_aLines[m_nCurLine = 0]; } - wxString& GetNextLine() /* const */ { return m_aLines[++m_nCurLine]; } - wxString& GetPrevLine() /* const */ - { wxASSERT(m_nCurLine > 0); return m_aLines[--m_nCurLine]; } - wxString& GetLastLine() /* const */ - { return m_aLines[m_nCurLine = m_aLines.Count() - 1]; } - - // get the type of the line (see also GetEOL) - wxTextFileType GetLineType(size_t n) const { return m_aTypes[n]; } - // guess the type of file (m_file is supposed to be opened) - wxTextFileType GuessType() const; - // get the name of the file - const wxChar *GetName() const { return m_strFile.c_str(); } - - // add/remove lines - // add a line to the end - void AddLine(const wxString& str, wxTextFileType type = typeDefault) - { m_aLines.Add(str); m_aTypes.Add(type); } - // insert a line before the line number n - void InsertLine(const wxString& str, - size_t n, - wxTextFileType type = typeDefault) - { m_aLines.Insert(str, n); m_aTypes.Insert(type, n); } - // delete one line - void RemoveLine(size_t n) { m_aLines.Remove(n); m_aTypes.Remove(n); } - - // change the file on disk (default argument means "don't change type") - // possibly in another format - bool Write(wxTextFileType typeNew = wxTextFileType_None); - - // dtor - ~wxTextFile(); + // constructors + wxTextFile() { } + wxTextFile(const wxString& strFileName); + +protected: + // implement the base class pure virtuals + virtual bool OnExists() const; + virtual bool OnOpen(const wxString &strBufferName, + wxTextBufferOpenMode OpenMode); + virtual bool OnClose(); + virtual bool OnRead(wxMBConv& conv); + virtual bool OnWrite(wxTextFileType typeNew, wxMBConv& conv = wxConvLibc); private: - // copy ctor/assignment operator not implemented - wxTextFile(const wxTextFile&); - wxTextFile& operator=(const wxTextFile&); - - // read the file in memory (m_file is supposed to be just opened) - bool Read(); - - wxFile m_file; // current file - - ArrayFileType m_aTypes; // type of each line - wxArrayString m_aLines; // lines of file - - size_t m_nCurLine; // number of current line in the file - - bool m_isOpened; // was the file successfully opened the last time? - - wxString m_strFile; // name of the file + wxFile m_file; }; #else // !wxUSE_TEXTFILE -// these static wxTextFile methods are used internally by wxWindows, so should -// be defined even if we're compiling without wxTextFile at all. - -class WXDLLEXPORT wxTextFile -{ -public: - // default type for current platform (determined at compile time) - static const wxTextFileType typeDefault; - - // this function returns a string which is identical to "text" passed in - // except that the line terminator characters are changed to correspond the - // given type. Called with the default argument, the function translates - // the string to the native format (Unix for Unix, DOS for Windows, ...). - static wxString Translate(const wxString& text, - wxTextFileType type = typeDefault); - - // get the file termination string - static const wxChar *GetEOL(wxTextFileType type = typeDefault); - -private: - // copy ctor/assignment operator not implemented - wxTextFile(const wxTextFile&); - wxTextFile& operator=(const wxTextFile&); -}; +// old code relies on the static methods of wxTextFile being always available +// and they still are available in wxTextBuffer (even if !wxUSE_TEXTBUFFER), so +// make it possible to use them in a backwards compatible way +typedef wxTextBuffer wxTextFile; -#endif // wxUSE_TEXTFILE +#endif // wxUSE_TEXTFILE/!wxUSE_TEXTFILE #endif // _WX_TEXTFILE_H