]> git.saurik.com Git - wxWidgets.git/blobdiff - include/wx/stream.h
1. wxGrid fixes contributed by Gerhard Gruber (client data for cells...)
[wxWidgets.git] / include / wx / stream.h
index 1e6e6fad85859a111bf076f24914f7bd16c39e73..0b572026edc1d67b22c256397bdd379d6c656433 100644 (file)
 #pragma interface
 #endif
 
+#include "wx/defs.h"
+
+#if wxUSE_STREAMS
+
 #include <stdio.h>
 #include "wx/object.h"
 #include "wx/string.h"
@@ -28,7 +32,7 @@ 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 +41,29 @@ wxOutputStream& WXDLLEXPORT wxEndL(wxOutputStream& o_stream);
 class WXDLLEXPORT wxStreamBuffer {
  public:
   typedef enum {
-    readwrite
+    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 +79,18 @@ 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 +106,11 @@ 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 +118,10 @@ 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 +129,8 @@ 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 +138,7 @@ 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;
@@ -132,7 +154,7 @@ class WXDLLEXPORT wxInputStream: public wxStreamBase {
   // IO functions
   virtual char Peek();
   char GetC();
-  wxInputStream& Read(void *buffer, size_t size);
+  virtual wxInputStream& Read(void *buffer, size_t size);
   wxInputStream& Read(wxOutputStream& stream_out);
 
   // Position functions
@@ -147,19 +169,18 @@ class WXDLLEXPORT wxInputStream: public wxStreamBase {
   wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
   wxInputStream& operator>>(wxString& line);
   wxInputStream& operator>>(char& c);
-  wxInputStream& operator>>(short& i);
-  wxInputStream& operator>>(int& i);
-  wxInputStream& operator>>(long& i);
+  wxInputStream& operator>>(signed short& i);
+  wxInputStream& operator>>(signed int& i);
+  wxInputStream& operator>>(signed long& i);
+  wxInputStream& operator>>(unsigned char& c);
+  wxInputStream& operator>>(unsigned short& i);
+  wxInputStream& operator>>(unsigned int& i);
+  wxInputStream& operator>>(unsigned long& i);
   wxInputStream& operator>>(double& i);
+  wxInputStream& operator>>(float& f) { double d; operator>>((double&)d); f = (float)d; return *this; }
 #if wxUSE_SERIAL
   wxInputStream& operator>>(wxObject *& obj);
 #endif
-
-  wxInputStream& operator>>(float& f) { double d; operator>>((double&)d); f = (float)d; return *this; }
-  wxInputStream& operator>>(unsigned char& c) { return operator>>((char&)c); }
-  wxInputStream& operator>>(unsigned short& i) { return operator>>((short&)i); }
-  wxInputStream& operator>>(unsigned int& i) { return operator>>((int&)i); }
-  wxInputStream& operator>>(unsigned long& i) { return operator>>((long&)i); }
   wxInputStream& operator>>( __wxInputManip func) { return func(*this); }
 
  protected:
@@ -173,7 +194,7 @@ class WXDLLEXPORT wxOutputStream: public wxStreamBase {
   wxOutputStream(wxStreamBuffer *sbuf);
   virtual ~wxOutputStream();
 
-  wxOutputStream& Write(const void *buffer, size_t size);
+  virtual wxOutputStream& Write(const void *buffer, size_t size);
   wxOutputStream& Write(wxInputStream& stream_in);
 
   off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
@@ -188,19 +209,18 @@ class WXDLLEXPORT wxOutputStream: public wxStreamBase {
   wxOutputStream& operator<<(const char *string);
   wxOutputStream& operator<<(wxString& string);
   wxOutputStream& operator<<(char c);
-  wxOutputStream& operator<<(short i);
-  wxOutputStream& operator<<(int i);
-  wxOutputStream& operator<<(long i);
+  wxOutputStream& operator<<(signed short i);
+  wxOutputStream& operator<<(signed int i);
+  wxOutputStream& operator<<(signed long i);
+  wxOutputStream& operator<<(unsigned char c);
+  wxOutputStream& operator<<(unsigned short i);
+  wxOutputStream& operator<<(unsigned int i);
+  wxOutputStream& operator<<(unsigned long i);
   wxOutputStream& operator<<(double f);
+  wxOutputStream& operator<<(float f) { return operator<<((double)f); }
 #if wxUSE_SERIAL
   wxOutputStream& operator<<(wxObject& obj);
 #endif
-
-  wxOutputStream& operator<<(float f) { return operator<<((double)f); }
-  wxOutputStream& operator<<(unsigned char c) { return operator<<((char)c); }
-  wxOutputStream& operator<<(unsigned short i) { return operator<<((short)i); }
-  wxOutputStream& operator<<(unsigned int i) { return operator<<((int)i); }
-  wxOutputStream& operator<<(unsigned long i) { return operator<<((long)i); }
   wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
 
  protected:
@@ -220,6 +240,9 @@ 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;
 };
@@ -230,8 +253,15 @@ 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;
 };
 
 #endif
+  // wxUSE_STREAMS
+
+#endif
+  // _WX_WXSTREAM_H__