Don't create multiple parent-less top level frames in layout sample.

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

diff --git a/include/wx/sstream.h b/include/wx/sstream.h
index 0d44a30d82bc57290eddd6123f08593d29e392b4..318cf776b72aaaad99a4db839d0c7f2d9aeb3d40 100644 (file)
--- a/include/wx/sstream.h
+++ b/include/wx/sstream.h
@@ -25,13 +25,10 @@ class WXDLLIMPEXP_BASE wxStringInputStream : public wxInputStream
 public:
     // ctor associates the stream with the given string which makes a copy of
     // it
-    wxStringInputStream(const wxString& s)
-        : m_str(s)
-    {
-        m_pos = 0;
-    }
+    wxStringInputStream(const wxString& s);
 
-    virtual size_t GetSize() const { return m_str.length(); }
+    virtual wxFileOffset GetLength() const;
+    virtual bool IsSeekable() const { return true; }
 
 protected:
     virtual wxFileOffset OnSysSeek(wxFileOffset ofs, wxSeekMode mode);
@@ -39,14 +36,19 @@ protected:
     virtual size_t OnSysRead(void *buffer, size_t size);
 
 private:
-    // the string we're reading from
+    // the string that was passed in the ctor
     wxString m_str;
 
+    // the buffer we're reading from
+    wxCharBuffer m_buf;
+
+    // length of the buffer we're reading from
+    size_t m_len;
+
     // position in the stream in bytes, *not* in chars
     size_t m_pos;
 
-
-    DECLARE_NO_COPY_CLASS(wxStringInputStream)
+    wxDECLARE_NO_COPY_CLASS(wxStringInputStream);
 };
 
 // ----------------------------------------------------------------------------
@@ -58,7 +60,15 @@ class WXDLLIMPEXP_BASE wxStringOutputStream : public wxOutputStream
 public:
     // The stream will write data either to the provided string or to an
     // internal string which can be retrieved using GetString()
-    wxStringOutputStream(wxString *pString = NULL)
+    //
+    // Note that the conversion object should have the life time greater than
+    // this stream.
+    wxStringOutputStream(wxString *pString = NULL,
+                         wxMBConv& conv = wxConvUTF8)
+        : m_conv(conv)
+#if wxUSE_UNICODE
+        , m_unconv(0)
+#endif // wxUSE_UNICODE
     {
         m_str = pString ? pString : &m_strInternal;
         m_pos = m_str->length() / sizeof(wxChar);
@@ -67,6 +77,8 @@ public:
     // get the string containing current output
     const wxString& GetString() const { return *m_str; }
 
+    virtual bool IsSeekable() const { return true; }
+
 protected:
     virtual wxFileOffset OnSysTell() const;
     virtual size_t OnSysWrite(const void *buffer, size_t size);
@@ -81,8 +93,17 @@ private:
     // position in the stream in bytes, *not* in chars
     size_t m_pos;
 
+    // converter to use: notice that with the default UTF-8 one the input
+    // stream must contain valid UTF-8 data, use wxConvISO8859_1 to work with
+    // arbitrary 8 bit data
+    wxMBConv& m_conv;
+
+#if wxUSE_UNICODE
+    // unconverted data from the last call to OnSysWrite()
+    wxMemoryBuffer m_unconv;
+#endif // wxUSE_UNICODE
 
-    DECLARE_NO_COPY_CLASS(wxStringOutputStream)
+    wxDECLARE_NO_COPY_CLASS(wxStringOutputStream);
 };
 
 #endif // wxUSE_STREAMS