X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d79b79b5e8f35e92fbbf0d74c3514dc37642e5aa..d7926e0b761b782b82f9ef01ff542251b2ef5ae7:/include/wx/textfile.h diff --git a/include/wx/textfile.h b/include/wx/textfile.h index 1747218f27..ec93546696 100644 --- a/include/wx/textfile.h +++ b/include/wx/textfile.h @@ -4,55 +4,80 @@ // (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 /////////////////////////////////////////////////////////////////////////////// -#ifndef _TEXTFILE_H -#define _TEXTFILE_H +#ifndef _WX_TEXTFILE_H +#define _WX_TEXTFILE_H #ifdef __GNUG__ -#pragma interface "textfile.h" + #pragma interface "textfile.h" #endif #include "wx/defs.h" -#include "wx/string.h" -#include "wx/file.h" -#include "wx/dynarray.h" // ---------------------------------------------------------------------------- -// wxTextFile +// constants // ---------------------------------------------------------------------------- +// NB: this is always defined, even if !wxUSE_TEXTFILE + // 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_Mac, // 'CR' = 0xD = 13 = '\r' + wxTextFileType_Os2 // 'CR' 'LF' }; -WX_DEFINE_ARRAY(wxTextFileType, ArrayFileType); +#if wxUSE_TEXTFILE + +#include "wx/string.h" +#include "wx/file.h" +#include "wx/dynarray.h" + +// ---------------------------------------------------------------------------- +// wxTextFile +// ---------------------------------------------------------------------------- + +WX_DEFINE_EXPORTED_ARRAY(wxTextFileType, ArrayFileType); -class wxTextFile +class WXDLLEXPORT wxTextFile { public: - // default type for current platform (determined at compile time) + // 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 @@ -60,7 +85,7 @@ public: // closes the file and frees memory, losing all changes bool Close(); // is file currently opened? - bool IsOpened() const { return m_file.IsOpened(); } + bool IsOpened() const { return m_isOpened; } // accessors // get the number of lines in the file @@ -74,13 +99,13 @@ public: // 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; } + bool Eof() const { return (m_aLines.Count() == 0 || 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() ) { ... } - // @@@ const is commented out because not all compilers understand + // 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]; } @@ -94,28 +119,24 @@ public: // guess the type of file (m_file is supposed to be opened) wxTextFileType GuessType() const; // get the name of the file - const char *GetName() const { return m_strFile.c_str(); } + 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) + 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) + 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); } + void RemoveLine(size_t n) { m_aLines.RemoveAt(n); m_aTypes.RemoveAt(n); } // change the file on disk (default argument means "don't change type") // possibly in another format bool Write(wxTextFileType typeNew = wxTextFileType_None); - // get the file termination string - // Note: implementation moved to textfile to prevent warning due to switch. - static const char *GetEOL(wxTextFileType type = typeDefault); - // dtor ~wxTextFile(); @@ -134,7 +155,45 @@ private: 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 }; -#endif //_TEXTFILE_H +#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&); + + // suppress the gcc warning: 'class defines only private constructors and + // has no friends' +#ifdef __GNUG__ + friend class wxTextFileDummyFriend; +#endif // gcc +}; + +#endif // wxUSE_TEXTFILE + +#endif // _WX_TEXTFILE_H +