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https://git.lyx.org/repos/lyx.git
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6c300f72a2
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15422 a592a061-630c-0410-9148-cb99ea01b6c8
100 lines
1.7 KiB
C
100 lines
1.7 KiB
C
/**
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* \file Previews.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "Previews.h"
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#include "PreviewLoader.h"
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#include "buffer.h"
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#include "insetiterator.h"
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#include "lyxrc.h"
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#include "paragraph.h"
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#include "insets/inset.h"
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namespace lyx {
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namespace graphics {
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LyXRC_PreviewStatus Previews::status()
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{
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return lyxrc.preview;
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}
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Previews & Previews::get()
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{
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static Previews singleton;
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return singleton;
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}
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class Previews::Impl {
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public:
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///
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typedef boost::shared_ptr<PreviewLoader> PreviewLoaderPtr;
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///
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typedef std::map<Buffer const *, PreviewLoaderPtr> CacheType;
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///
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CacheType cache;
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};
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Previews::Previews()
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: pimpl_(new Impl)
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{}
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Previews::~Previews()
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{}
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PreviewLoader & Previews::loader(Buffer const & buffer) const
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{
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Impl::CacheType::iterator it = pimpl_->cache.find(&buffer);
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if (it == pimpl_->cache.end()) {
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Impl::PreviewLoaderPtr ptr(new PreviewLoader(buffer));
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pimpl_->cache[&buffer] = ptr;
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return *ptr.get();
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}
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return *it->second.get();
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}
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void Previews::removeLoader(Buffer const & buffer) const
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{
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Impl::CacheType::iterator it = pimpl_->cache.find(&buffer);
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if (it != pimpl_->cache.end())
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pimpl_->cache.erase(it);
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}
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void Previews::generateBufferPreviews(Buffer const & buffer) const
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{
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PreviewLoader & ploader = loader(buffer);
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InsetBase & inset = buffer.inset();
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InsetIterator it = inset_iterator_begin(inset);
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InsetIterator const end = inset_iterator_end(inset);
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for (; it != end; ++it)
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it->addPreview(ploader);
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ploader.startLoading();
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}
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} // namespace graphics
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} // namespace lyx
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