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76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
/*!
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@file
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@author Albert Semenov
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@date 08/2009
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@module
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*/
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/*
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This file is part of MyGUI.
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MyGUI is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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MyGUI 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "MyGUI_Precompiled.h"
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#include "MyGUI_DataStream.h"
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namespace MyGUI
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{
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DataStream::DataStream() :
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mStream(nullptr),
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mSize((size_t)-1)
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{
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}
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DataStream::DataStream(std::istream* _stream) :
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mStream(_stream),
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mSize((size_t)-1)
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{
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}
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DataStream::~DataStream()
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{
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}
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size_t DataStream::size()
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{
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if (mStream == nullptr) return 0;
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if (mSize == (size_t)-1)
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{
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mStream->seekg (0, std::ios::end);
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mSize = mStream->tellg();
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mStream->seekg (0, std::ios::beg);
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}
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return mSize;
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}
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bool DataStream::eof()
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{
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return mStream == nullptr ? true : mStream->eof();
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}
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void DataStream::readline(std::string& _source, Char _delim)
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{
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if (mStream == nullptr) return;
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std::getline(*mStream, _source, (char)_delim);
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}
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size_t DataStream::read(void* _buf, size_t _count)
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{
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if (mStream == nullptr) return 0;
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size_t count = std::min(size(), _count);
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mStream->read((char*)_buf, count);
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return count;
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}
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} // namespace MyGUI
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