4f4c5fcfdf
This is a combination of running clang-tidy with modernize-use-nullptr check for some ports (GTK, X11, OSX) and manual changes to the ports for which it couldn't be used easily (MSW, DFB) and also manually updating the docs. Also replace NULL with null or nullptr in the comments as this is more consistent with the use of nullptr in the code and makes it simpler to grep for the remaining occurrences of NULL itself. And also use null in the assert messages. Only a few occurrences of "NULL" are still left in non-C files, mostly corresponding to unclear comments or string output which it might not be safe to change.
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/mstream.h
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// Purpose: Memory stream classes
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// Author: Guilhem Lavaux
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// Modified by:
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// Created: 11/07/98
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// Copyright: (c) Guilhem Lavaux
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WXMMSTREAM_H__
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#define _WX_WXMMSTREAM_H__
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#include "wx/defs.h"
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#if wxUSE_STREAMS
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#include "wx/stream.h"
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class WXDLLIMPEXP_FWD_BASE wxMemoryOutputStream;
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class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
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{
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public:
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wxMemoryInputStream(const void *data, size_t length);
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wxMemoryInputStream(const wxMemoryOutputStream& stream);
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wxMemoryInputStream(wxInputStream& stream,
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wxFileOffset lenFile = wxInvalidOffset)
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{
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InitFromStream(stream, lenFile);
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}
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wxMemoryInputStream(wxMemoryInputStream& stream)
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: wxInputStream()
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{
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InitFromStream(stream, wxInvalidOffset);
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}
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virtual ~wxMemoryInputStream();
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virtual wxFileOffset GetLength() const override { return m_length; }
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virtual bool IsSeekable() const override { return true; }
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virtual char Peek() override;
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virtual bool CanRead() const override;
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wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
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protected:
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wxStreamBuffer *m_i_streambuf;
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size_t OnSysRead(void *buffer, size_t nbytes) override;
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wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode) override;
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wxFileOffset OnSysTell() const override;
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private:
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// common part of ctors taking wxInputStream
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void InitFromStream(wxInputStream& stream, wxFileOffset lenFile);
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size_t m_length;
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// copy ctor is implemented above: it copies the other stream in this one
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wxDECLARE_ABSTRACT_CLASS(wxMemoryInputStream);
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wxDECLARE_NO_ASSIGN_CLASS(wxMemoryInputStream);
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};
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class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
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{
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public:
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// if data is not null it must be allocated with malloc()
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wxMemoryOutputStream(void *data = nullptr, size_t length = 0);
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virtual ~wxMemoryOutputStream();
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virtual wxFileOffset GetLength() const override { return m_o_streambuf->GetLastAccess(); }
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virtual bool IsSeekable() const override { return true; }
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size_t CopyTo(void *buffer, size_t len) const;
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wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
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protected:
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wxStreamBuffer *m_o_streambuf;
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protected:
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size_t OnSysWrite(const void *buffer, size_t nbytes) override;
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wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode) override;
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wxFileOffset OnSysTell() const override;
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wxDECLARE_DYNAMIC_CLASS(wxMemoryOutputStream);
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wxDECLARE_NO_COPY_CLASS(wxMemoryOutputStream);
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};
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#endif
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// wxUSE_STREAMS
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#endif
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// _WX_WXMMSTREAM_H__
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