X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d775fa82354a1f8d5db87ad1d71ab00ef7d9123c..60bea0cfb5861737b367ca483295ea4ad3c1d8ed:/include/wx/stream.h

diff --git a/include/wx/stream.h b/include/wx/stream.h
index 0d5cc56279..0a6f16e545 100644
--- a/include/wx/stream.h
+++ b/include/wx/stream.h
@@ -23,7 +23,7 @@
 #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 WXDLLIMPEXP_BASE wxStreamBase;
 class WXDLLIMPEXP_BASE wxInputStream;
@@ -82,17 +82,21 @@ public:
     void Reset() { m_lasterror = wxSTREAM_NO_ERROR; }
 
     // this doesn't make sense for all streams, always test its return value
-    virtual size_t GetSize() const { return 0; }
+    virtual size_t GetSize() const;
+    virtual wxFileOffset GetLength() const { return wxInvalidOffset; }
+
+    // returns true if the streams supports seeking to arbitrary offsets
+    virtual bool IsSeekable() const { return false; }
 
 #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;
@@ -192,10 +196,10 @@ 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
@@ -250,12 +254,13 @@ 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); }
@@ -283,13 +288,13 @@ class WXDLLIMPEXP_BASE wxCountingOutputStream : public wxOutputStream
 public:
     wxCountingOutputStream();
 
-    size_t GetSize() const;
+    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;
 
@@ -309,7 +314,7 @@ 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; }
 
@@ -326,7 +331,7 @@ public:
     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; }
 
@@ -368,8 +373,8 @@ 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();
@@ -475,8 +480,9 @@ 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;
+    bool IsSeekable() const { return m_parent_i_stream->IsSeekable(); }
 
     // the buffer given to the stream will be deleted by it
     void SetInputStreamBuffer(wxStreamBuffer *buffer);
@@ -487,8 +493,8 @@ 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;
 
@@ -510,12 +516,14 @@ 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;
+    bool IsSeekable() const { return m_parent_o_stream->IsSeekable(); }
 
     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);
@@ -526,8 +534,8 @@ 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;