X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/489a164c1c56855b29285230237c69514ff823e1..f4dda581a49f46d468a8d8aefc31f37aca3ef7d1:/include/wx/stream.h

diff --git a/include/wx/stream.h b/include/wx/stream.h
index 62dced0447..e4838d263c 100644
--- a/include/wx/stream.h
+++ b/include/wx/stream.h
@@ -21,9 +21,9 @@
 #include "wx/string.h"
 #include "wx/filefn.h"  // for wxFileOffset, wxInvalidOffset and wxSeekMode
 
-class WXDLLIMPEXP_BASE wxStreamBase;
-class WXDLLIMPEXP_BASE wxInputStream;
-class WXDLLIMPEXP_BASE wxOutputStream;
+class WXDLLIMPEXP_FWD_BASE wxStreamBase;
+class WXDLLIMPEXP_FWD_BASE wxInputStream;
+class WXDLLIMPEXP_FWD_BASE wxOutputStream;
 
 typedef wxInputStream& (*__wxInputManip)(wxInputStream&);
 typedef wxOutputStream& (*__wxOutputManip)(wxOutputStream&);
@@ -42,6 +42,8 @@ enum wxStreamError
     wxSTREAM_READ_ERROR         // generic read error
 };
 
+const int wxEOF = -1;
+
 // ============================================================================
 // base stream classes: wxInputStream and wxOutputStream
 // ============================================================================
@@ -50,7 +52,7 @@ enum wxStreamError
 // wxStreamBase: common (but non virtual!) base for all stream classes
 // ---------------------------------------------------------------------------
 
-class WXDLLIMPEXP_BASE wxStreamBase
+class WXDLLIMPEXP_BASE wxStreamBase : public wxObject
 {
 public:
     wxStreamBase();
@@ -80,6 +82,7 @@ protected:
 
     friend class wxStreamBuffer;
 
+    DECLARE_ABSTRACT_CLASS(wxStreamBase)
     DECLARE_NO_COPY_CLASS(wxStreamBase)
 };
 
@@ -106,11 +109,11 @@ public:
     // undefined), otherwise 1
     virtual char Peek();
 
-    // return one character from the stream, blocking until it appears if
+    // return one byte from the stream, blocking until it appears if
     // necessary
     //
-    // if EOF, return value is undefined and LastRead() will return 0 and not 1
-    char GetC();
+    // on success returns a value between 0 - 255, or wxEOF on EOF or error.
+    int GetC();
 
     // read at most the given number of bytes from the stream
     //
@@ -214,6 +217,7 @@ protected:
 
     friend class wxStreamBuffer;
 
+    DECLARE_ABSTRACT_CLASS(wxInputStream)
     DECLARE_NO_COPY_CLASS(wxInputStream)
 };
 
@@ -249,6 +253,7 @@ protected:
 
     friend class wxStreamBuffer;
 
+    DECLARE_ABSTRACT_CLASS(wxOutputStream)
     DECLARE_NO_COPY_CLASS(wxOutputStream)
 };
 
@@ -276,6 +281,7 @@ protected:
 
     size_t m_currentPos;
 
+    DECLARE_DYNAMIC_CLASS(wxCountingOutputStream)
     DECLARE_NO_COPY_CLASS(wxCountingOutputStream)
 };
 
@@ -301,6 +307,7 @@ protected:
     wxInputStream *m_parent_i_stream;
     bool m_owns;
 
+    DECLARE_ABSTRACT_CLASS(wxFilterInputStream)
     DECLARE_NO_COPY_CLASS(wxFilterInputStream)
 };
 
@@ -322,6 +329,7 @@ protected:
     wxOutputStream *m_parent_o_stream;
     bool m_owns;
 
+    DECLARE_ABSTRACT_CLASS(wxFilterOutputStream)
     DECLARE_NO_COPY_CLASS(wxFilterOutputStream)
 };
 
@@ -346,12 +354,12 @@ public:
     virtual const wxChar * const *GetProtocols(wxStreamProtocolType type
                                                = wxSTREAM_PROTOCOL) const = 0;
 
-    bool CanHandle(const wxChar *protocol,
+    bool CanHandle(const wxString& protocol,
                    wxStreamProtocolType type
                    = wxSTREAM_PROTOCOL) const;
 
 protected:
-    wxString::size_type FindExtension(const wxChar *location) const;
+    wxString::size_type FindExtension(const wxString& location) const;
 
     DECLARE_ABSTRACT_CLASS(wxFilterClassFactoryBase)
 };
@@ -366,7 +374,7 @@ public:
     virtual wxFilterInputStream  *NewStream(wxInputStream *stream)  const = 0;
     virtual wxFilterOutputStream *NewStream(wxOutputStream *stream) const = 0;
 
-    static const wxFilterClassFactory *Find(const wxChar *protocol,
+    static const wxFilterClassFactory *Find(const wxString& protocol,
                                             wxStreamProtocolType type
                                             = wxSTREAM_PROTOCOL);
 
@@ -426,6 +434,7 @@ public:
 
     // Buffer control
     void ResetBuffer();
+    void Truncate();
 
     // NB: the buffer must always be allocated with malloc() if takeOwn is
     //     true as it will be deallocated by free()
@@ -435,7 +444,7 @@ public:
     void *GetBufferStart() const { return m_buffer_start; }
     void *GetBufferEnd() const { return m_buffer_end; }
     void *GetBufferPos() const { return m_buffer_pos; }
-    size_t GetBufferSize() const { return m_buffer_size; }
+    size_t GetBufferSize() const { return m_buffer_end - m_buffer_start; }
     size_t GetIntPosition() const { return m_buffer_pos - m_buffer_start; }
     void SetIntPosition(size_t pos) { m_buffer_pos = m_buffer_start + pos; }
     size_t GetLastAccess() const { return m_buffer_end - m_buffer_start; }
@@ -450,7 +459,7 @@ public:
 
     // misc accessors
     wxStreamBase *GetStream() const { return m_stream; }
-    bool HasBuffer() const { return m_buffer_size != 0; }
+    bool HasBuffer() const { return m_buffer_start != m_buffer_end; }
 
     bool IsFixed() const { return m_fixed; }
     bool IsFlushable() const { return m_flushable; }
@@ -490,10 +499,6 @@ protected:
          *m_buffer_end,
          *m_buffer_pos;
 
-    // the buffer size
-    // FIXME: isn't it the same as m_buffer_end - m_buffer_start? (VZ)
-    size_t m_buffer_size;
-
     // the stream we're associated with
     wxStreamBase *m_stream;