3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Angus Leeming
8 * Full author contact details are available in file CREDITS.
14 #include "PreviewLoader.h"
17 #include "InsetIterator.h"
20 #include "insets/Inset.h"
25 using namespace std::tr1;
31 LyXRC_PreviewStatus Previews::status()
38 typedef shared_ptr<PreviewLoader> PreviewLoaderPtr;
40 typedef map<Buffer const *, PreviewLoaderPtr> LyxCacheType;
42 static LyxCacheType preview_cache_;
46 PreviewLoader & Previews::loader(Buffer const & buffer) const
48 LyxCacheType::iterator it = preview_cache_.find(&buffer);
50 if (it == preview_cache_.end()) {
51 PreviewLoaderPtr ptr(new PreviewLoader(buffer));
52 preview_cache_[&buffer] = ptr;
56 return *it->second.get();
60 void Previews::removeLoader(Buffer const & buffer) const
62 LyxCacheType::iterator it = preview_cache_.find(&buffer);
64 if (it != preview_cache_.end())
65 preview_cache_.erase(it);
69 void Previews::generateBufferPreviews(Buffer const & buffer) const
71 PreviewLoader & ploader = loader(buffer);
73 Inset & inset = buffer.inset();
74 InsetIterator it = inset_iterator_begin(inset);
75 InsetIterator const end = inset_iterator_end(inset);
77 for (; it != end; ++it)
78 it->addPreview(ploader);
80 ploader.startLoading();
83 } // namespace graphics