lyx_mirror/src/LayoutFile.h
Richard Heck 56a35c2c61 Add UseModule tag for layout files. This allows the AMS files, in particular, to "require" the
theorems-ams module, which is what most users will want. A later commit will allow users also
to "exclude" this module, in case they wanted to do that.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25880 a592a061-630c-0410-9148-cb99ea01b6c8
2008-07-25 15:51:27 +00:00

133 lines
3.5 KiB
C++

// -*- C++ -*-
/**
* \file LayoutFile.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
*
* Full author contact details are available in file CREDITS.
*/
#ifndef BASECLASSLIST_H
#define BASECLASSLIST_H
#include "TextClass.h"
#include "support/strfwd.h"
#include <boost/noncopyable.hpp>
#include <set>
#include <string>
#include <vector>
namespace lyx {
class Layout;
/// Reads the style files
extern bool LyXSetStyle();
/// Index into LayoutFileList. Basically a 'strong typedef'.
class LayoutFileIndex {
public:
///
typedef std::string base_type;
///
LayoutFileIndex(base_type t) { data_ = t; }
///
operator base_type() const { return data_; }
///
bool empty() const { return data_.empty(); }
private:
base_type data_;
};
/// This class amounts to little more than a `strong typedef'.
///
/// A LayoutFile represents the layout information that is
/// contained in a *.layout file.
///
/// No document- (that is, Buffer-) specific information should
/// be placed in these objects. They are used as the basis for
/// constructing DocumentClass objects, which are what represent
/// the layout information associated with a Buffer. (This is also
/// a subclass of TextClass, implemented in TextClass.{h,cpp}.)
/// Buffer-specific information should therefore be placed in a
/// DocumentClass object.
///
class LayoutFile : public TextClass, boost::noncopyable {
public:
/// check whether the TeX class is available
bool isTeXClassAvailable() const { return texClassAvail_; }
///
std::set<std::string> const & defaultModules() const { return usemod_; }
private:
/// Construct a layout with default values. Actual values loaded later.
explicit LayoutFile(std::string const & filename,
std::string const & className = std::string(),
std::string const & description = std::string(),
bool texClassAvail = false);
/// The only class that should create a LayoutFile is
/// LayoutFileList, which calls the private constructor.
friend class LayoutFileList;
/// can't create empty LayoutFile
LayoutFile() {};
};
/// A list of base document classes (*.layout files).
/// This is a singleton class. The sole instance is accessed
/// via LayoutFileList::get()
class LayoutFileList {
public:
///
LayoutFileList() {}
~LayoutFileList();
/// \return The sole instance of this class.
static LayoutFileList & get();
///
bool empty() const { return classmap_.empty(); }
///
bool haveClass(std::string const & classname) const;
///
LayoutFile const & operator[](std::string const & classname) const;
///
LayoutFile & operator[](std::string const & classname);
/// Read textclass list. Returns false if this fails.
bool read();
/// Clears the textclass so as to force it to be reloaded
void reset(LayoutFileIndex const & tc);
/// add a default textclass with all standard layouts.
LayoutFileIndex addEmptyClass(std::string const & textclass);
/// add a textclass from user local directory.
/// \return the identifier for the loaded file, or else an
/// empty string if no file was loaded.
LayoutFileIndex
addLocalLayout(std::string const & textclass, std::string const & path);
/// a list of the available classes
std::vector<LayoutFileIndex> classList() const;
private:
///
typedef std::map<std::string, LayoutFile *> ClassMap;
/// noncopyable
LayoutFileList(LayoutFileList const &);
/// nonassignable
void operator=(LayoutFileList const &);
///
mutable ClassMap classmap_; //FIXME
};
///
LayoutFileIndex defaultBaseclass();
} // namespace lyx
#endif