mirror of
https://gitea.wildfiregames.com/0ad/0ad.git
synced 2026-07-19 09:57:28 +00:00
Ykkrosh
116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Stream.h"
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#include "wx/mstream.h"
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#include "wx/zstream.h"
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namespace DatafileIO
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{
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// Wrappers around wx streams, so they can be used as [non-wx] Streams.
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// (This code is all inline so that the project can be compiled without
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// requiring wxWidgets.)
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class SeekableInputStreamFromWx : public SeekableInputStream
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{
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public:
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// Take ownership of a wxInputStream
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SeekableInputStreamFromWx(wxInputStream* stream)
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: m_Stream(stream), m_Owner(true) {}
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// Use an externally-owned wxInputStream
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SeekableInputStreamFromWx(wxInputStream& stream)
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: m_Stream(&stream), m_Owner(false) {}
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~SeekableInputStreamFromWx()
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{
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if (m_Owner)
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delete m_Stream;
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}
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virtual off_t Tell() const { return m_Stream->TellI(); }
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virtual bool IsOk() const { return m_Stream->IsOk(); }
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virtual void Seek(off_t pos, Stream::whence mode)
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{
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m_Stream->SeekI(pos,
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mode==Stream::FROM_START ? wxFromStart
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: mode==Stream::FROM_END ? wxFromEnd
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: /*mode==Stream::FROM_CURRENT*/ wxFromCurrent);
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}
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virtual size_t Read(void* buffer, size_t size)
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{
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m_Stream->Read(buffer, size);
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return m_Stream->LastRead();
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}
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private:
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wxInputStream* m_Stream;
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bool m_Owner;
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};
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class SeekableOutputStreamFromWx : public SeekableOutputStream
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{
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public:
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// Take ownership of a wxInputStream
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SeekableOutputStreamFromWx(wxOutputStream* stream)
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: m_Stream(stream), m_Owner(true) {}
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// Use an externally-owned wxInputStream
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SeekableOutputStreamFromWx(wxOutputStream& stream)
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: m_Stream(&stream), m_Owner(false) {}
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~SeekableOutputStreamFromWx()
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{
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if (m_Owner)
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delete m_Stream;
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}
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virtual off_t Tell() const
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{
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return m_Stream->TellO();
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}
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virtual bool IsOk() const
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{
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return m_Stream->IsOk();
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}
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virtual void Seek(off_t pos, Stream::whence mode)
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{
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m_Stream->SeekO(pos,
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mode==Stream::FROM_START ? wxFromStart
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: mode==Stream::FROM_END ? wxFromEnd
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: /*mode==Stream::FROM_CURRENT*/ wxFromCurrent);
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}
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virtual void Write(const void* buffer, size_t size)
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{
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m_Stream->Write(buffer, size);
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}
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private:
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wxOutputStream* m_Stream;
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bool m_Owner;
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};
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}
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