fixed bug in Set() on DST days (patch 1097811)

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

diff --git a/include/wx/stream.h b/include/wx/stream.h
index 2fdae2f2e3ae0364be1a28172b431f02a388cd5a..41d8b5372fdf1e93bb8ec003007ce7707fa1fcc4 100644 (file)
--- a/include/wx/stream.h
+++ b/include/wx/stream.h
@@ -12,7 +12,7 @@
 #ifndef _WX_WXSTREAM_H__
 #define _WX_WXSTREAM_H__
 
-#if defined(__GNUG__) && !defined(__APPLE__)
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma interface "stream.h"
 #endif
 
@@ -23,16 +23,16 @@
 #include <stdio.h>
 #include "wx/object.h"
 #include "wx/string.h"
-#include "wx/filefn.h"  // for off_t, wxInvalidOffset and wxSeekMode
+#include "wx/filefn.h"  // for wxFileOffset, wxInvalidOffset and wxSeekMode
 
-class WXDLLEXPORT_BASE wxStreamBase;
-class WXDLLEXPORT_BASE wxInputStream;
-class WXDLLEXPORT_BASE wxOutputStream;
+class WXDLLIMPEXP_BASE wxStreamBase;
+class WXDLLIMPEXP_BASE wxInputStream;
+class WXDLLIMPEXP_BASE wxOutputStream;
 
 typedef wxInputStream& (*__wxInputManip)(wxInputStream&);
 typedef wxOutputStream& (*__wxOutputManip)(wxOutputStream&);
 
-WXDLLEXPORT_BASE wxOutputStream& wxEndL(wxOutputStream& o_stream);
+WXDLLIMPEXP_BASE wxOutputStream& wxEndL(wxOutputStream& o_stream);
 
 // ----------------------------------------------------------------------------
 // constants
@@ -67,7 +67,7 @@ enum wxStreamError
 // wxStreamBase: common (but non virtual!) base for all stream classes
 // ---------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxStreamBase
+class WXDLLIMPEXP_BASE wxStreamBase
 {
 public:
     wxStreamBase();
@@ -81,18 +81,19 @@ public:
     // reset the stream state
     void Reset() { m_lasterror = wxSTREAM_NO_ERROR; }
 
-    // deprecated (doesn't make sense!), don't use
-    virtual size_t GetSize() const { return 0; }
+    // this doesn't make sense for all streams, always test its return value
+    virtual size_t GetSize() const;
+    virtual wxFileOffset GetLength() const { return wxInvalidOffset; }
 
 #if WXWIN_COMPATIBILITY_2_2
     // deprecated, for compatibility only
-    wxStreamError LastError() const { return m_lasterror; }
-    size_t StreamSize() const { return GetSize(); }
+    wxDEPRECATED( wxStreamError LastError() const );
+    wxDEPRECATED( size_t StreamSize() const );
 #endif // WXWIN_COMPATIBILITY_2_2
 
 protected:
-    virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
-    virtual off_t OnSysTell() const;
+    virtual wxFileOffset OnSysSeek(wxFileOffset seek, wxSeekMode mode);
+    virtual wxFileOffset OnSysTell() const;
 
     size_t m_lastcount;
     wxStreamError m_lasterror;
@@ -106,7 +107,7 @@ protected:
 // wxInputStream: base class for the input streams
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxInputStream : public wxStreamBase
+class WXDLLIMPEXP_BASE wxInputStream : public wxStreamBase
 {
 public:
     // ctor and dtor, nothing exciting
@@ -159,7 +160,7 @@ public:
     // all the requested data or not
     virtual size_t LastRead() const { return wxStreamBase::m_lastcount; }
 
-    // returns TRUE if some data is available in the stream right now, so that
+    // returns true if some data is available in the stream right now, so that
     // calling Read() wouldn't block
     virtual bool CanRead() const;
 
@@ -181,7 +182,7 @@ public:
 
     // put back the specified character in the stream
     //
-    // returns TRUE if ok, FALSE on error
+    // returns true if ok, false on error
     bool Ungetch(char c);
 
 
@@ -192,10 +193,10 @@ public:
     // it)
     //
     // returns wxInvalidOffset on error
-    virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
+    virtual wxFileOffset SeekI(wxFileOffset pos, wxSeekMode mode = wxFromStart);
 
     // return the current position of the stream pointer or wxInvalidOffset
-    virtual off_t TellI() const;
+    virtual wxFileOffset TellI() const;
 
 
     // stream-like operators
@@ -232,13 +233,15 @@ protected:
     size_t m_wbackcur;
 
     friend class wxStreamBuffer;
+
+    DECLARE_NO_COPY_CLASS(wxInputStream)
 };
 
 // ----------------------------------------------------------------------------
 // wxOutputStream: base for the output streams
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxOutputStream : public wxStreamBase
+class WXDLLIMPEXP_BASE wxOutputStream : public wxStreamBase
 {
 public:
     wxOutputStream();
@@ -248,12 +251,13 @@ public:
     virtual wxOutputStream& Write(const void *buffer, size_t size);
     wxOutputStream& Write(wxInputStream& stream_in);
 
-    virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
-    virtual off_t TellO() const;
+    virtual wxFileOffset SeekO(wxFileOffset pos, wxSeekMode mode = wxFromStart);
+    virtual wxFileOffset TellO() const;
 
     virtual size_t LastWrite() const { return wxStreamBase::m_lastcount; }
 
     virtual void Sync();
+    virtual bool Close() { return true; }
 
     wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
     wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
@@ -264,6 +268,8 @@ protected:
     virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
 
     friend class wxStreamBuffer;
+
+    DECLARE_NO_COPY_CLASS(wxOutputStream)
 };
 
 // ============================================================================
@@ -274,27 +280,29 @@ protected:
 // A stream for measuring streamed output
 // ---------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxCountingOutputStream : public wxOutputStream
+class WXDLLIMPEXP_BASE wxCountingOutputStream : public wxOutputStream
 {
 public:
     wxCountingOutputStream();
 
-    size_t GetSize() const;
-    bool Ok() const { return TRUE; }
+    wxFileOffset GetLength() const;
+    bool Ok() const { return true; }
 
 protected:
     virtual size_t OnSysWrite(const void *buffer, size_t size);
-    virtual off_t OnSysSeek(off_t pos, wxSeekMode mode);
-    virtual off_t OnSysTell() const;
+    virtual wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
+    virtual wxFileOffset OnSysTell() const;
 
     size_t m_currentPos;
+
+    DECLARE_NO_COPY_CLASS(wxCountingOutputStream)
 };
 
 // ---------------------------------------------------------------------------
 // "Filter" streams
 // ---------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxFilterInputStream : public wxInputStream
+class WXDLLIMPEXP_BASE wxFilterInputStream : public wxInputStream
 {
 public:
     wxFilterInputStream();
@@ -303,7 +311,7 @@ public:
 
     char Peek() { return m_parent_i_stream->Peek(); }
 
-    size_t GetSize() const { return m_parent_i_stream->GetSize(); }
+    wxFileOffset GetLength() const { return m_parent_i_stream->GetLength(); }
 
     wxInputStream *GetFilterInputStream() const { return m_parent_i_stream; }
 
@@ -313,14 +321,14 @@ protected:
     DECLARE_NO_COPY_CLASS(wxFilterInputStream)
 };
 
-class WXDLLEXPORT_BASE wxFilterOutputStream : public wxOutputStream
+class WXDLLIMPEXP_BASE wxFilterOutputStream : public wxOutputStream
 {
 public:
     wxFilterOutputStream();
     wxFilterOutputStream(wxOutputStream& stream);
     virtual ~wxFilterOutputStream();
 
-    size_t GetSize() const { return m_parent_o_stream->GetSize(); }
+    wxFileOffset GetLength() const { return m_parent_o_stream->GetLength(); }
 
     wxOutputStream *GetFilterOutputStream() const { return m_parent_o_stream; }
 
@@ -339,7 +347,7 @@ protected:
 // wxBufferedStreams to implement custom buffering
 // ---------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxStreamBuffer
+class WXDLLIMPEXP_BASE wxStreamBuffer
 {
 public:
     enum BufMode
@@ -362,16 +370,16 @@ public:
     virtual char Peek();
     virtual char GetChar();
     virtual void PutChar(char c);
-    virtual off_t Tell() const;
-    virtual off_t Seek(off_t pos, wxSeekMode mode);
+    virtual wxFileOffset Tell() const;
+    virtual wxFileOffset Seek(wxFileOffset pos, wxSeekMode mode);
 
     // Buffer control
     void ResetBuffer();
 
     // NB: the buffer must always be allocated with malloc() if takeOwn is
-    //     TRUE as it will be deallocated by free()
-    void SetBufferIO(void *start, void *end, bool takeOwnership = FALSE);
-    void SetBufferIO(void *start, size_t len, bool takeOwnership = FALSE);
+    //     true as it will be deallocated by free()
+    void SetBufferIO(void *start, void *end, bool takeOwnership = false);
+    void SetBufferIO(void *start, size_t len, bool takeOwnership = false);
     void SetBufferIO(size_t bufsize);
     void *GetBufferStart() const { return m_buffer_start; }
     void *GetBufferEnd() const { return m_buffer_end; }
@@ -457,7 +465,7 @@ private:
 // wxBufferedInputStream
 // ---------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxBufferedInputStream : public wxFilterInputStream
+class WXDLLIMPEXP_BASE wxBufferedInputStream : public wxFilterInputStream
 {
 public:
     // if a non NULL buffer is given to the stream, it will be deleted by it
@@ -469,8 +477,8 @@ public:
     wxInputStream& Read(void *buffer, size_t size);
 
     // Position functions
-    off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
-    off_t TellI() const;
+    wxFileOffset SeekI(wxFileOffset pos, wxSeekMode mode = wxFromStart);
+    wxFileOffset TellI() const;
 
     // the buffer given to the stream will be deleted by it
     void SetInputStreamBuffer(wxStreamBuffer *buffer);
@@ -481,8 +489,8 @@ public:
 
 protected:
     virtual size_t OnSysRead(void *buffer, size_t bufsize);
-    virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
-    virtual off_t OnSysTell() const;
+    virtual wxFileOffset OnSysSeek(wxFileOffset seek, wxSeekMode mode);
+    virtual wxFileOffset OnSysTell() const;
 
     wxStreamBuffer *m_i_streambuf;
 
@@ -493,7 +501,7 @@ protected:
 // wxBufferedOutputStream
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT_BASE wxBufferedOutputStream : public wxFilterOutputStream
+class WXDLLIMPEXP_BASE wxBufferedOutputStream : public wxFilterOutputStream
 {
 public:
     // if a non NULL buffer is given to the stream, it will be deleted by it
@@ -504,12 +512,13 @@ public:
     wxOutputStream& Write(const void *buffer, size_t size);
 
     // Position functions
-    off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
-    off_t TellO() const;
+    wxFileOffset SeekO(wxFileOffset pos, wxSeekMode mode = wxFromStart);
+    wxFileOffset TellO() const;
 
     void Sync();
+    bool Close();
 
-    size_t GetSize() const;
+    wxFileOffset GetLength() const;
 
     // the buffer given to the stream will be deleted by it
     void SetOutputStreamBuffer(wxStreamBuffer *buffer);
@@ -520,8 +529,8 @@ public:
 
 protected:
     virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
-    virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
-    virtual off_t OnSysTell() const;
+    virtual wxFileOffset OnSysSeek(wxFileOffset seek, wxSeekMode mode);
+    virtual wxFileOffset OnSysTell() const;
 
     wxStreamBuffer *m_o_streambuf;