///////////////////////////////////////////////////////////////////////////////
-// 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.
#include "wx/defs.h"
-// ----------------------------------------------------------------------------
-// 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_Os2 // 'CR' 'LF'
-};
+#include "wx/textbuf.h"
#if wxUSE_TEXTFILE
-#include "wx/string.h"
#include "wx/file.h"
-#include "wx/dynarray.h"
// ----------------------------------------------------------------------------
// wxTextFile
// ----------------------------------------------------------------------------
-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_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() ) { ... }
-
- // 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&);
-
- // suppress the gcc warning: 'class defines only private constructors and
- // has no friends'
-#ifdef __GNUG__
- friend class wxTextFileDummyFriend;
-#endif // gcc
-};
+// 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
projects / wxWidgets.git / blobdiff