d02ea46cad
deletion of the wxInputStream passed to wxFSFile git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32589 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: pyistream.h
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// Purpose: Classes for managing wxInputStream <--> Python streams
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//
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// Author: Robin Dunn
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//
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// Created: 25-Sept-2000
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// RCS-ID: $Id$
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// Copyright: (c) 2000 by Total Control Software
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __PYISTREAM__
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#define __PYISTREAM__
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//----------------------------------------------------------------------
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// Handling of wxInputStreams by Joerg Baumann
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// See stream.i for implementations
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// C++ class wxPyInputStream to act as base for python class wxInputStream
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// You can use it in python like a python file object.
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class wxPyInputStream {
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public:
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// underlying wxInputStream
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wxInputStream* m_wxis;
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public:
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wxPyInputStream(wxInputStream* wxis) : m_wxis(wxis) {}
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~wxPyInputStream();
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// python file object interface for input files (most of it)
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void close();
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void flush();
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bool eof();
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PyObject* read(int size=-1);
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PyObject* readline(int size=-1);
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PyObject* readlines(int sizehint=-1);
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void seek(int offset, int whence=0);
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int tell();
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/* do these later?
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bool isatty();
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int fileno();
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void truncate(int size=-1);
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void write(wxString data);
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void writelines(wxStringPtrList);
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*/
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// wxInputStream methods that may come in handy...
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char Peek() { if (m_wxis) return m_wxis->Peek(); else return -1; }
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char GetC() { if (m_wxis) return m_wxis->GetC(); else return -1; }
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size_t LastRead() { if (m_wxis) return m_wxis->LastRead(); else return 0; }
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bool CanRead() { if (m_wxis) return m_wxis->CanRead(); else return false; }
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bool Eof() { if (m_wxis) return m_wxis->Eof(); else return false; }
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bool Ungetch(char c) { if (m_wxis) return m_wxis->Ungetch(c); else return false; }
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unsigned long SeekI(unsigned long pos, wxSeekMode mode)
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{ if (m_wxis) return m_wxis->SeekI(pos, mode); else return 0; }
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unsigned long TellI() { if (m_wxis) return m_wxis->TellI(); else return 0; }
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};
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// This is a wxInputStream that wraps a Python file-like
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// object and calls the Python methods as needed.
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class wxPyCBInputStream : public wxInputStream {
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public:
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~wxPyCBInputStream();
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virtual wxFileOffset GetLength() const;
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// factory function
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static wxPyCBInputStream* create(PyObject *py, bool block=true);
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wxPyCBInputStream(const wxPyCBInputStream& other);
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protected:
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// can only be created via the factory
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wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block);
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// wxStreamBase methods
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virtual size_t OnSysRead(void *buffer, size_t bufsize);
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virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
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virtual wxFileOffset OnSysSeek(wxFileOffset off, wxSeekMode mode);
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virtual wxFileOffset OnSysTell() const;
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// helper
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static PyObject* getMethod(PyObject* py, char* name);
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PyObject* m_read;
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PyObject* m_seek;
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PyObject* m_tell;
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bool m_block;
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};
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//----------------------------------------------------------------------
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#endif
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