mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-27 19:59:46 +00:00
f68a2bfb91
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4538 a592a061-630c-0410-9148-cb99ea01b6c8
74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
// -*- C++ -*-
|
|
/**
|
|
* \file Previews.h
|
|
* Copyright 2002 the LyX Team
|
|
* Read the file COPYING
|
|
*
|
|
* \author Angus Leeming <a.leeming@ic.ac.uk>
|
|
*
|
|
* grfx::Previews is a singleton class that stores the grfx::PreviewLoader
|
|
* for each buffer requiring one.
|
|
*/
|
|
|
|
#ifndef PREVIEWS_H
|
|
#define PREVIEWS_H
|
|
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include "LString.h"
|
|
#include <boost/utility.hpp>
|
|
#include <boost/scoped_ptr.hpp>
|
|
|
|
class Buffer;
|
|
|
|
namespace grfx {
|
|
|
|
class PreviewLoader;
|
|
|
|
class Previews : boost::noncopyable {
|
|
public:
|
|
/// a wrapper for lyxrc.preview
|
|
static bool activated();
|
|
|
|
/// This is a singleton class. Get the instance.
|
|
static Previews & get();
|
|
|
|
/** Returns the PreviewLoader for this buffer.
|
|
* Used by individual insets to update their own preview.
|
|
* We assert that (buffer != 0) but do not pass a Buffer &
|
|
* so that insets do not need to #include buffer.h
|
|
*/
|
|
PreviewLoader & loader(Buffer * buffer);
|
|
|
|
/** Called from the Buffer d-tor.
|
|
* If (buffer == 0), does nothing.
|
|
*/
|
|
void removeLoader(Buffer * buffer);
|
|
|
|
/** For a particular buffer, initiate the generation of previews
|
|
* for each and every snippetof LaTeX that's of interest with
|
|
* a single forked process.
|
|
* If (buffer == 0), does nothing.
|
|
*/
|
|
void generateBufferPreviews(Buffer * buffer);
|
|
|
|
private:
|
|
/** Make the c-tor, d-tor private so we can control how many objects
|
|
* are instantiated.
|
|
*/
|
|
Previews();
|
|
///
|
|
~Previews();
|
|
|
|
/// Use the Pimpl idiom to hide the internals.
|
|
class Impl;
|
|
/// The pointer never changes although *pimpl_'s contents may.
|
|
boost::scoped_ptr<Impl> const pimpl_;
|
|
};
|
|
|
|
} // namespace grfx
|
|
|
|
#endif // PREVIEWS_H
|