X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6164d85e896743b16a0cf8b0610f5d17ceb47f36..7e08bc5acd8ee4e2f0756f50bf98937a118f9951:/include/wx/textfile.h?ds=sidebyside diff --git a/include/wx/textfile.h b/include/wx/textfile.h index 3ac74cfc2a..240817cfe2 100644 --- a/include/wx/textfile.h +++ b/include/wx/textfile.h @@ -1,137 +1,62 @@ /////////////////////////////////////////////////////////////////////////////// -// 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. // Author: Vadim Zeitlin -// Modified by: +// Modified by: // Created: 03.04.98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifndef _TEXTFILE_H -#define _TEXTFILE_H - -#ifdef __GNUG__ -#pragma interface "textfile.h" -#endif +#ifndef _WX_TEXTFILE_H +#define _WX_TEXTFILE_H #include "wx/defs.h" -#include "wx/string.h" + +#include "wx/textbuf.h" + +#if wxUSE_TEXTFILE + #include "wx/file.h" -#include "wx/dynarray.h" // ---------------------------------------------------------------------------- // wxTextFile // ---------------------------------------------------------------------------- -class wxTextFile + +class WXDLLIMPEXP_BASE wxTextFile : public wxTextBuffer { public: - // constants - enum Type - { - Type_None, // incomplete (the last line of the file only) - Type_Unix, // line is terminated with 'LF' = 0xA = 10 = '\n' - Type_Dos, // 'CR' 'LF' - Type_Mac // 'CR' = 0xD = 13 = '\r' - }; - - // default type for current platform (determined at compile time) - static const Type typeDefault; - - // ctors - // def ctor, use Open(string) - wxTextFile() { } - // - wxTextFile(const wxString& strFile); - - // file operations - // file exists? - bool Exists() const; - // 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_file.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(); } - - // 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() ) { ... } - - // @@@ 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) - Type GetLineType(size_t n) const { return m_aTypes[n]; } - // guess the type of file (m_file is supposed to be opened) - Type GuessType() const; - // get the name of the file - const char *GetName() const { return m_strFile.c_str(); } - - // add/remove lines - // add a line to the end - void AddLine(const wxString& str, Type 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, Type 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(Type typeNew = Type_None); - - // get the file termination string - // Note: implementation moved to textfile to prevent warning due to switch. - static const char *GetEOL(Type type = typeDefault); - - // 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(const wxMBConv& conv); + virtual bool OnWrite(wxTextFileType typeNew, const wxMBConv& conv); 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; - WX_DEFINE_ARRAY(Type, ArrayFileType); + wxDECLARE_NO_COPY_CLASS(wxTextFile); +}; - wxFile m_file; // current file +#else // !wxUSE_TEXTFILE - ArrayFileType m_aTypes; // type of each line - wxArrayString m_aLines; // lines of file +// 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; - size_t m_nCurLine; // number of current line in the file +#endif // wxUSE_TEXTFILE/!wxUSE_TEXTFILE - wxString m_strFile; // name of the file -}; +#endif // _WX_TEXTFILE_H -#endif //_TEXTFILE_H