86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
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// Copyright (c) 2008, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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// Headers
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#include "text_reader_cache.h"
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using namespace Athenasub;
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Athenasub::TextReaderCache::TextReaderCache(shared_ptr<TextReader> src)
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: source(src)
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{
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bufferPos = 0;
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}
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String TextReaderCache::ReadLineFromFile()
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{
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if (bufferPos == buffer.size()) {
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LoadMore(10);
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}
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if (bufferPos == buffer.size()) {
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return "";
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}
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return buffer[bufferPos++];
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}
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bool TextReaderCache::HasMoreLines()
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{
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if (bufferPos != buffer.size())
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return true;
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else
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return CanLoadMore();
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}
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void TextReaderCache::Rewind()
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{
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bufferPos = 0;
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}
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void Athenasub::TextReaderCache::LoadMore(int n)
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{
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for (int i=0;i<n;i++) {
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if (CanLoadMore())
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buffer.push_back(source->ReadLineFromFile());
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else
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return;
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}
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}
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bool Athenasub::TextReaderCache::CanLoadMore()
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{
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return source->HasMoreLines();
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}
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