// -*- C++ -*-
/**
 * \file insetinclude.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 INSET_INCLUDE_H
#define INSET_INCLUDE_H

#include "insetcommand.h"
#include "dimension.h"
#include "renderers.h"
#include <boost/scoped_ptr.hpp>


class Buffer;
struct LaTeXFeatures;

// Created by AAS 970521

/// for including tex/lyx files
class InsetInclude: public InsetOld {
public:
	/// the type of inclusion
	enum Flags {
		INCLUDE = 0, //<
		VERB = 1, //<
		INPUT = 2, //<
		VERBAST = 3 //<
	};

	struct Params {
		Params(InsetCommandParams const & cp = InsetCommandParams("input"),
		       Flags f = INPUT,
		       string const & name = string())
			: cparams(cp), flag(f),
			  masterFilename_(name) {}

		InsetCommandParams cparams;
		Flags flag;
		string masterFilename_;

		///
		bool operator==(Params const &) const;
		///
		bool operator!=(Params const &) const;
	};

	///
	InsetInclude(Params const &);
	InsetInclude(InsetCommandParams const &, Buffer const &);
	InsetInclude(InsetInclude const &);

	~InsetInclude();

	///
	virtual dispatch_result localDispatch(FuncRequest const & cmd);

	/// Override these InsetButton methods if Previewing
	void metrics(MetricsInfo & mi, Dimension & dim) const;
	///
	void draw(PainterInfo & pi, int x, int y) const;
	///
	virtual BufferView * view() const;

	/// get the parameters
	Params const & params(void) const;
	/// set the parameters
	void set(Params const & params);

	///
	virtual std::auto_ptr<InsetBase> clone() const;
	///
	InsetOld::Code lyxCode() const { return InsetOld::INCLUDE_CODE; }
	/// This returns the list of labels on the child buffer
	void getLabelList(std::vector<string> &) const;
	/// This returns the list of bibkeys on the child buffer
	void fillWithBibKeys(std::vector<std::pair<string,string> > & keys) const;
	///
	EDITABLE editable() const
	{
		return IS_EDITABLE;
	}
	///
	void write(Buffer const &, std::ostream &) const;
	///
	void read(Buffer const &, LyXLex &);
	///
	int latex(Buffer const &, std::ostream &,
		  LatexRunParams const &) const;
	///
	int ascii(Buffer const &, std::ostream &, int linelen) const;
	///
	int linuxdoc(Buffer const &, std::ostream &) const;
	///
	int docbook(Buffer const &, std::ostream &, bool mixcont) const;
	///
	void validate(LaTeXFeatures &) const;

	/// return true if the file is or got loaded.
	bool loadIfNeeded() const;

	///
	void addPreview(lyx::graphics::PreviewLoader &) const;

private:
	friend class InsetIncludeMailer;
	
	///
	void write(std::ostream &) const;
	///
	void read(LyXLex &);
	/// get the text displayed on the button
	string const getScreenLabel(Buffer const &) const;
	/// is this a verbatim include ?
	bool isVerbatim() const;
	/// get the filename of the master buffer
	string const getMasterFilename() const;
	/// get the included file name
	string const getFileName() const;

	/// the parameters
	Params params_;
	/// holds the entity name that defines the file location (SGML)
	string const include_label;

	/// Use the Pimpl idiom to hide the internals of the previewer.
	class PreviewImpl;
	friend class PreviewImpl;
	/// The pointer never changes although *preview_'s contents may.
	boost::scoped_ptr<PreviewImpl> const preview_;

	/// cache
	mutable bool set_label_;
	mutable ButtonRenderer button_;
};


inline bool InsetInclude::isVerbatim() const
{
	return params_.flag == VERB || params_.flag == VERBAST;
}

#include "mailinset.h"

class InsetIncludeMailer : public MailInset {
public:
	///
	InsetIncludeMailer(InsetInclude & inset);
	///
	virtual InsetBase & inset() const { return inset_; }
	///
	virtual string const & name() const { return name_; }
	///
	virtual string const inset2string(Buffer const &) const;
	///
	static void string2params(string const &, InsetInclude::Params &);
	///
	static string const params2string(InsetInclude::Params const &);
private:
	///
	static string const name_;
	///
	InsetInclude & inset_;
};

#endif // INSETINCLUDE_H