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[wxWidgets.git] / include / wx / stream.h

diff --git a/include/wx/stream.h b/include/wx/stream.h
index 1e6e6fad85859a111bf076f24914f7bd16c39e73..25f04afbcca039f977ec578102b1a99407003670 100644 (file)
--- a/include/wx/stream.h
+++ b/include/wx/stream.h
@@ -28,7 +28,7 @@ class WXDLLEXPORT wxOutputStream;
 typedef wxInputStream& (*__wxInputManip)(wxInputStream&);
 typedef wxOutputStream& (*__wxOutputManip)(wxOutputStream&);
 
-wxOutputStream& WXDLLEXPORT wxEndL(wxOutputStream& o_stream);
+WXDLLEXPORT wxOutputStream& wxEndL(wxOutputStream& o_stream);
 
 // ---------------------------------------------------------------------------
 // Stream buffer
@@ -37,22 +37,29 @@ wxOutputStream& WXDLLEXPORT wxEndL(wxOutputStream& o_stream);
 class WXDLLEXPORT wxStreamBuffer {
  public:
   typedef enum {
-    read, write
+    read = 0, write, read_write
   } BufMode;
 
   // -----------
   // ctor & dtor
   // -----------
   wxStreamBuffer(wxStreamBase& stream, BufMode mode);
+  wxStreamBuffer(BufMode mode);
+  wxStreamBuffer(const wxStreamBuffer& buf);
   ~wxStreamBuffer();
 
   // -----------
   // Filtered IO
   // -----------
-  void Read(void *buffer, size_t size);
-  void Write(const void *buffer, size_t size);
-  bool WriteBack(const char *buffer, size_t size);
+  size_t Read(void *buffer, size_t size);
+  size_t Read(wxStreamBuffer *buf);
+  size_t Write(const void *buffer, size_t size);
+  size_t Write(wxStreamBuffer *buf);
+
+  size_t WriteBack(const char *buffer, size_t size);
   bool WriteBack(char c);
+  char GetChar();
+  void PutChar(char c);
   off_t Tell() const;
   off_t Seek(off_t pos, wxSeekMode mode);
 
@@ -68,11 +75,18 @@ class WXDLLEXPORT wxStreamBuffer {
   off_t GetIntPosition() const { return m_buffer_pos-m_buffer_start; }
   void SetIntPosition(off_t pos) { m_buffer_pos = m_buffer_start+pos; }
   size_t GetLastAccess() const { return m_buffer_end-m_buffer_start; }
+
   void Fixed(bool fixed) { m_fixed = fixed; }
+  void Flushable(bool f) { m_flushable = f; }
 
   bool FlushBuffer();
   bool FillBuffer();
-  size_t GetDataLeft() const;
+  size_t GetDataLeft();
+
+  // --------------
+  // Administration
+  // --------------
+  wxStreamBase *Stream() { return m_stream; }
 
  protected:
   char *AllocSpaceWBack(size_t needed_size);
@@ -88,10 +102,11 @@ class WXDLLEXPORT wxStreamBuffer {
   char *m_wback;
   size_t m_wbacksize, m_wbackcur;
 
-  bool m_fixed;
+  bool m_fixed, m_flushable;
 
   wxStreamBase *m_stream;
   BufMode m_mode;
+  bool m_destroybuf, m_destroystream;
 };
 
 // ---------------------------------------------------------------------------
@@ -99,8 +114,10 @@ class WXDLLEXPORT wxStreamBuffer {
 // ---------------------------------------------------------------------------
 
 typedef enum {
-  wxStream_NOERROR,
-  wxStream_EOF
+  wxStream_NOERROR = 0,
+  wxStream_EOF,
+  wxStream_WRITE_ERR,
+  wxStream_READ_ERR
 } wxStreamError;
 
 class WXDLLEXPORT wxStreamBase {
@@ -108,7 +125,8 @@ class WXDLLEXPORT wxStreamBase {
   wxStreamBase();
   virtual ~wxStreamBase();
 
-  wxStreamError LastError() { return m_lasterror; }
+  wxStreamError LastError() const { return m_lasterror; }
+  virtual size_t StreamSize() const { return ~((size_t)0); }
 
  protected:
   friend class wxStreamBuffer;
@@ -116,7 +134,7 @@ class WXDLLEXPORT wxStreamBase {
   virtual size_t OnSysRead(void *buffer, size_t bufsize);
   virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
   virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
-  virtual off_t OnSysTell();
+  virtual off_t OnSysTell() const;
 
  protected:
   size_t m_lastcount;
@@ -220,6 +238,9 @@ class WXDLLEXPORT wxFilterInputStream: public wxInputStream {
 
   char Peek() { return m_parent_i_stream->Peek(); }
 
+  wxStreamError LastError() const { return m_parent_i_stream->LastError(); }
+  size_t StreamSize() const { return m_parent_i_stream->StreamSize(); }
+
  protected:
   wxInputStream *m_parent_i_stream;
 };
@@ -230,6 +251,9 @@ class WXDLLEXPORT wxFilterOutputStream: public wxOutputStream {
   wxFilterOutputStream(wxOutputStream& stream);
   ~wxFilterOutputStream();
 
+  wxStreamError LastError() const { return m_parent_o_stream->LastError(); }
+  size_t StreamSize() const { return m_parent_o_stream->StreamSize(); }
+
  protected:
   wxOutputStream *m_parent_o_stream;
 };