wxPython/contrib/activex/wxie/IEHtmlStream.h

   1 /*
   2                 wxActiveX Library Licence, Version 3
   3                 ====================================
   4
   5   Copyright (C) 2003 Lindsay Mathieson [, ...]
   6
   7   Everyone is permitted to copy and distribute verbatim copies
   8   of this licence document, but changing it is not allowed.
   9
  10                        wxActiveX LIBRARY LICENCE
  11      TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
  12
  13   This library is free software; you can redistribute it and/or modify it
  14   under the terms of the GNU Library General Public Licence as published by
  15   the Free Software Foundation; either version 2 of the Licence, or (at
  16   your option) any later version.
  17
  18   This library is distributed in the hope that it will be useful, but
  19   WITHOUT ANY WARRANTY; without even the implied warranty of
  20   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library
  21   General Public Licence for more details.
  22
  23   You should have received a copy of the GNU Library General Public Licence
  24   along with this software, usually in a file named COPYING.LIB.  If not,
  25   write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  26   Boston, MA 02111-1307 USA.
  27
  28   EXCEPTION NOTICE
  29
  30   1. As a special exception, the copyright holders of this library give
  31   permission for additional uses of the text contained in this release of
  32   the library as licenced under the wxActiveX Library Licence, applying
  33   either version 3 of the Licence, or (at your option) any later version of
  34   the Licence as published by the copyright holders of version 3 of the
  35   Licence document.
  36
  37   2. The exception is that you may use, copy, link, modify and distribute
  38   under the user's own terms, binary object code versions of works based
  39   on the Library.
  40
  41   3. If you copy code from files distributed under the terms of the GNU
  42   General Public Licence or the GNU Library General Public Licence into a
  43   copy of this library, as this licence permits, the exception does not
  44   apply to the code that you add in this way.  To avoid misleading anyone as
  45   to the status of such modified files, you must delete this exception
  46   notice from such code and/or adjust the licensing conditions notice
  47   accordingly.
  48
  49   4. If you write modifications of your own for this library, it is your
  50   choice whether to permit this exception to apply to your modifications.
  51   If you do not wish that, you must delete the exception notice from such
  52   code and/or adjust the licensing conditions notice accordingly.
  53 */
  54
  55 // This module contains the declarations of the stream adapters and such that
  56 // used to be in IEHtmlWin.cpp, so that they can be used independently in the
  57 // wxPython wrappers...
  58
  59
  60 #ifndef _IEHTMLSTREAM_H_
  61 #define _IEHTMLSTREAM_H_
  62
  63
  64 class IStreamAdaptorBase : public IStream
  65 {
  66 private:
  67     DECLARE_OLE_UNKNOWN(IStreamAdaptorBase);
  68
  69 public:
  70     string prepend;
  71
  72     IStreamAdaptorBase() {}
  73     virtual ~IStreamAdaptorBase() {}
  74
  75     virtual int Read(char *buf, int cb) = 0;
  76
  77     // ISequentialStream
  78     HRESULT STDMETHODCALLTYPE Read(void __RPC_FAR *pv, ULONG cb, ULONG __RPC_FAR *pcbRead);
  79
  80     HRESULT STDMETHODCALLTYPE Write(const void __RPC_FAR *pv, ULONG cb, ULONG __RPC_FAR *pcbWritten) {return E_NOTIMPL;}
  81
  82     // IStream
  83     HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER __RPC_FAR *plibNewPosition) {return E_NOTIMPL;}
  84     HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER libNewSize) {return E_NOTIMPL;}
  85     HRESULT STDMETHODCALLTYPE CopyTo(IStream __RPC_FAR *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER __RPC_FAR *pcbRead, ULARGE_INTEGER __RPC_FAR *pcbWritten) {return E_NOTIMPL;}
  86     HRESULT STDMETHODCALLTYPE Commit(DWORD grfCommitFlags) {return E_NOTIMPL;}
  87     HRESULT STDMETHODCALLTYPE Revert(void) {return E_NOTIMPL;}
  88     HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) {return E_NOTIMPL;}
  89     HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) {return E_NOTIMPL;}
  90     HRESULT STDMETHODCALLTYPE Stat(STATSTG __RPC_FAR *pstatstg, DWORD grfStatFlag) {return E_NOTIMPL;}
  91     HRESULT STDMETHODCALLTYPE Clone(IStream __RPC_FAR *__RPC_FAR *ppstm) {return E_NOTIMPL;}
  92 };
  93
  94
  95
  96 class IStreamAdaptor : public IStreamAdaptorBase
  97 {
  98 private:
  99     istream *m_is;
 100
 101 public:
 102     IStreamAdaptor(istream *is);
 103     ~IStreamAdaptor();
 104     int Read(char *buf, int cb);
 105 };
 106
 107
 108
 109 class IwxStreamAdaptor : public IStreamAdaptorBase
 110 {
 111 private:
 112     wxInputStream *m_is;
 113
 114 public:
 115     IwxStreamAdaptor(wxInputStream *is);
 116     ~IwxStreamAdaptor();
 117     int Read(char *buf, int cb);
 118 };
 119
 120
 121 class wxOwnedMemInputStream : public wxMemoryInputStream
 122 {
 123 public:
 124     char *m_data;
 125
 126     wxOwnedMemInputStream(char *data, size_t len);
 127     ~wxOwnedMemInputStream();
 128 };
 129
 130
 131 wxAutoOleInterface<IHTMLTxtRange> wxieGetSelRange(IOleObject *oleObject);
 132
 133 #endif