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"
28 LyXRC_PreviewStatus Previews::status()
35 typedef boost::shared_ptr<PreviewLoader> PreviewLoaderPtr;
37 typedef map<Buffer const *, PreviewLoaderPtr> CacheType;
39 static CacheType preview_cache_;
47 PreviewLoader & Previews::loader(Buffer const & buffer) const
49 CacheType::iterator it = preview_cache_.find(&buffer);
51 if (it == preview_cache_.end()) {
52 PreviewLoaderPtr ptr(new PreviewLoader(buffer));
53 preview_cache_[&buffer] = ptr;
57 return *it->second.get();
61 void Previews::removeLoader(Buffer const & buffer) const
63 CacheType::iterator it = preview_cache_.find(&buffer);
65 if (it != preview_cache_.end())
66 preview_cache_.erase(it);
70 void Previews::generateBufferPreviews(Buffer const & buffer) const
72 PreviewLoader & ploader = loader(buffer);
74 Inset & inset = buffer.inset();
75 InsetIterator it = inset_iterator_begin(inset);
76 InsetIterator const end = inset_iterator_end(inset);
78 for (; it != end; ++it)
79 it->addPreview(ploader);
81 ploader.startLoading();
84 } // namespace graphics