// -*- C++ -*-
/**
 * \file LyXRC.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Lars Gullik Bjønnes
 * \author Jean-Marc Lasgouttes
 * \author Angus Leeming
 * \author John Levon
 * \author André Pönitz
 * \author Allan Rae
 * \author Dekel Tsur
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef LYXRC_H
#define LYXRC_H

#include "paper.h"
#include "Length.h"

#include "support/strfwd.h"

#include <map>
#include <set>
#include <string>
#include <vector>


namespace lyx {

namespace support { class FileName; }

class Lexer;

/// This contains the runtime configuration of LyX
class LyXRC
{
public:
	enum LyXRCTags {
		RC_ACCEPT_COMPOUND = 1,
		RC_ALT_LANG,
		RC_AUTOCORRECTION_MATH,
		RC_AUTOREGIONDELETE,
		RC_AUTORESET_OPTIONS,
		RC_AUTOSAVE,
		RC_AUTO_NUMBER,
		RC_BACKUPDIR_PATH,
		RC_BIBTEX_ALTERNATIVES,
		RC_BIBTEX_COMMAND,
		RC_BINDFILE,
		RC_CHECKLASTFILES,
		RC_CHKTEX_COMMAND,
		RC_COMPLETION_CURSOR_TEXT,
		RC_COMPLETION_INLINE_DELAY,
		RC_COMPLETION_INLINE_MATH,
		RC_COMPLETION_INLINE_TEXT,
		RC_COMPLETION_INLINE_DOTS,
		RC_COMPLETION_MINLENGTH,
		RC_COMPLETION_POPUP_DELAY,
		RC_COMPLETION_POPUP_MATH,
		RC_COMPLETION_POPUP_TEXT,
		RC_COMPLETION_POPUP_AFTER_COMPLETE,
		RC_CONVERTER,
		RC_CONVERTER_CACHE_MAXAGE,
		RC_COPIER,
		RC_CURSOR_FOLLOWS_SCROLLBAR,
		RC_CURSOR_WIDTH,
		RC_DATE_INSERT_FORMAT,
		RC_DEFAULT_DECIMAL_POINT,
		RC_DEFAULT_LENGTH_UNIT,
		RC_DEFAULT_VIEW_FORMAT,
		RC_DEFFILE,
		RC_DIALOGS_ICONIFY_WITH_MAIN,
		RC_DISPLAY_GRAPHICS,
		RC_DOCUMENTPATH,
		RC_EDITOR_ALTERNATIVES,
		RC_ESC_CHARS,
		RC_EXAMPLEPATH,
		RC_EXPORT_OVERWRITE,
		RC_FONT_ENCODING,
		RC_FORCE_PAINT_SINGLE_CHAR,
		RC_FILEFORMAT,
		RC_FORWARD_SEARCH_DVI,
		RC_FORWARD_SEARCH_PDF,
		RC_FULL_SCREEN_LIMIT,
		RC_FULL_SCREEN_SCROLLBAR,
		RC_FULL_SCREEN_TABBAR,
		RC_FULL_SCREEN_MENUBAR,
		RC_FULL_SCREEN_TOOLBARS,
		RC_FULL_SCREEN_WIDTH,
		RC_GEOMETRY_SESSION,
		RC_GROUP_LAYOUTS,
		RC_GUI_LANGUAGE,
		RC_HUNSPELLDIR_PATH,
		RC_ICON_SET,
		RC_INDEX_ALTERNATIVES,
		RC_INDEX_COMMAND,
		RC_INPUT,
		RC_JBIBTEX_COMMAND,
		RC_JINDEX_COMMAND,
		RC_KBMAP,
		RC_KBMAP_PRIMARY,
		RC_KBMAP_SECONDARY,
		RC_LANGUAGE_AUTO_BEGIN,
		RC_LANGUAGE_AUTO_END,
		RC_LANGUAGE_COMMAND_BEGIN,
		RC_LANGUAGE_COMMAND_END,
		RC_LANGUAGE_COMMAND_LOCAL,
		RC_LANGUAGE_GLOBAL_OPTIONS,
		RC_LANGUAGE_CUSTOM_PACKAGE,
		RC_LANGUAGE_PACKAGE_SELECTION,
		RC_LOADSESSION,
		RC_LYXRCFORMAT,
		RC_MACRO_EDIT_STYLE,
		RC_MAC_DONTSWAP_CTRL_META,
		RC_MAC_LIKE_WORD_MOVEMENT,
		RC_MAKE_BACKUP,
		RC_MARK_FOREIGN_LANGUAGE,
		RC_MOUSE_WHEEL_SPEED,
		RC_NOMENCL_COMMAND,
		RC_NUMLASTFILES,
		RC_OPEN_BUFFERS_IN_TABS,
		RC_PARAGRAPH_MARKERS,
		RC_PATH_PREFIX,
		RC_PLAINTEXT_LINELEN,
		RC_PREVIEW,
		RC_PREVIEW_HASHED_LABELS,
		RC_PREVIEW_SCALE_FACTOR,
		RC_PRINTCOLLCOPIESFLAG,
		RC_PRINTCOPIESFLAG,
		RC_PRINTER,
		RC_PRINTEVENPAGEFLAG,
		RC_PRINTEXSTRAOPTIONS,
		RC_PRINTFILEEXTENSION,
		RC_PRINTLANDSCAPEFLAG,
		RC_PRINTODDPAGEFLAG,
		RC_PRINTPAGERANGEFLAG,
		RC_PRINTPAPERDIMENSIONFLAG,
		RC_PRINTPAPERFLAG,
		RC_PRINTREVERSEFLAG,
		RC_PRINTSPOOL_COMMAND,
		RC_PRINTSPOOL_PRINTERPREFIX,
		RC_PRINTTOFILE,
		RC_PRINTTOPRINTER,
		RC_PRINT_ADAPTOUTPUT,
		RC_PRINT_COMMAND,
		RC_RTL_SUPPORT,
		RC_SAVE_COMPRESSED,
		RC_SCREEN_DPI,
		RC_SCREEN_FONT_ROMAN,
		RC_SCREEN_FONT_ROMAN_FOUNDRY,
		RC_SCREEN_FONT_SANS,
		RC_SCREEN_FONT_SANS_FOUNDRY,
		RC_SCREEN_FONT_SCALABLE,
		RC_SCREEN_FONT_SIZES,
		RC_SCREEN_FONT_TYPEWRITER,
		RC_SCREEN_FONT_TYPEWRITER_FOUNDRY,
		RC_SCREEN_ZOOM,
		RC_SCROLL_BELOW_DOCUMENT,
		RC_SCROLL_WHEEL_ZOOM,
		RC_SERVERPIPE,
		RC_SET_COLOR,
		RC_SHOW_BANNER,
		RC_SINGLE_CLOSE_TAB_BUTTON,
		RC_SINGLE_INSTANCE,
		RC_SORT_LAYOUTS,
		RC_SPELLCHECK_CONTINUOUSLY,
		RC_SPELLCHECK_NOTES,
		RC_SPELLCHECKER,
		RC_SPLITINDEX_COMMAND,
		RC_TEMPDIRPATH,
		RC_TEMPLATEPATH,
		RC_TEX_ALLOWS_SPACES,
		RC_TEX_EXPECTS_WINDOWS_PATHS,
		RC_TEXINPUTS_PREFIX,
		RC_THESAURUSDIRPATH,
		RC_UIFILE,
		RC_USELASTFILEPOS,
		RC_USER_EMAIL,
		RC_USER_NAME,
		RC_USE_CONVERTER_CACHE,
		RC_USE_SYSTEM_COLORS,
		RC_USE_TOOLTIP,
		RC_USE_PIXMAP_CACHE,
		RC_USE_QIMAGE,
		RC_VIEWDVI_PAPEROPTION,
		RC_VIEWER,
		RC_VIEWER_ALTERNATIVES,
		RC_VISUAL_CURSOR,
		RC_CLOSE_BUFFER_WITH_LAST_VIEW,
		RC_LAST
	};

	///
	LyXRC();
	///
	void setDefaults();
	/// \param check_format: whether to try to convert the file format,
	/// if it is not current. this should only be true, really, for the
	/// user's own preferences file.
	bool read(support::FileName const & filename, bool check_format);
	///
	bool read(std::istream &);
private:
	enum ReturnValues {
		ReadOK,
		ReadError,
		FormatMismatch
	};
	///
	ReturnValues read(Lexer &, bool check_format);
public:
	///
	typedef std::set<std::string> CommandSet;
	/// maps a format to a set of commands that can be used to
	/// edit or view it.
	typedef std::map<std::string, CommandSet> Alternatives;
	///
	void write(support::FileName const & filename,
		   bool ignore_system_lyxrc) const;
	/// write rc. If a specific tag is given, only output that one.
	void write(std::ostream & os,
		   bool ignore_system_lyxrc,
		   std::string const & tag = std::string()) const;
	///
	void print() const;
	// FIXME unused (was used for xforms. Do we still need this?)
	//static docstring const getDescription(LyXRCTags);
	///
	std::string bind_file;
	///
	std::string def_file;
	///
	std::string ui_file;
	///
	std::string printer;
	///
	std::string print_command;
	///
	std::string print_evenpage_flag;
	///
	std::string print_oddpage_flag;
	///
	std::string print_pagerange_flag;
	///
	std::string print_copies_flag;
	///
	std::string print_collcopies_flag;
	///
	std::string print_reverse_flag;
	///
	std::string print_landscape_flag;
	///
	std::string print_to_printer;
	///
	bool print_adapt_output;
	///
	std::string print_to_file;
	///
	std::string print_file_extension;
	///
	std::string print_extra_options;
	///
	std::string print_spool_command;
	///
	std::string print_spool_printerprefix;
	///
	std::string print_paper_flag;
	///
	std::string print_paper_dimension_flag;
	/// option for telling the dvi viewer about the paper size
	std::string view_dvi_paper_option;
	/// default paper size for local xdvi/dvips/ghostview/whatever
	/// command to run chktex incl. options
	std::string chktex_command;
	/// all available commands to run bibtex incl. options
	CommandSet bibtex_alternatives;
	/// command to run bibtex incl. options
	std::string bibtex_command;
	/// command to run japanese bibtex incl. options
	std::string jbibtex_command;
	/// all available index commands incl. options
	CommandSet index_alternatives;
	/// command to run makeindex incl. options or other index programs
	std::string index_command;
	/// command to run japanese index program incl. options
	std::string jindex_command;
	/// command to generate multiple indices
	std::string splitindex_command;
	/// command to run makeindex incl. options for nomencl
	std::string nomencl_command;
	///
	std::string document_path;
	///
	std::string example_path;
	///
	std::string template_path;
	///
	std::string tempdir_path;
	///
	std::string thesaurusdir_path;
	///
	std::string hunspelldir_path;
	///
	bool auto_region_delete;
	/// flag telling whether lastfiles should be checked for existance
	bool auto_reset_options;
	///
	bool check_lastfiles;
	/// maximal number of lastfiles
	unsigned int num_lastfiles;
	/// whether or not go to saved position when opening a file
	bool use_lastfilepos;
	/// load files from last session automatically
	bool load_session;
	/// do we save new documents as compressed by default
	bool save_compressed;
	/// shall a backup file be created
	bool make_backup;
	/// A directory for storing backup files
	std::string backupdir_path;
	/// Whether or not save/restore session information
	/// like windows position and geometry.
	bool allow_geometry_session;
	/// Scrolling speed of the mouse wheel
	double mouse_wheel_speed;
	/// Zoom factor for screen fonts
	unsigned int zoom;
	/// Screen font sizes in points for each font size
	std::string font_sizes[10];
	/// Allow the use of scalable fonts? Default is yes.
	bool use_scalable_fonts;
	/// DPI of monitor
	unsigned int dpi;
	///
	std::string fontenc;
	///
	std::string roman_font_name;
	///
	std::string sans_font_name;
	///
	std::string typewriter_font_name;
	///
	std::string roman_font_foundry;
	///
	std::string sans_font_foundry;
	///
	std::string typewriter_font_foundry;
	///
	unsigned int autosave;
	///
	unsigned int plaintext_linelen;
	/// Accept compound words in spellchecker?
	bool spellchecker_accept_compound;
	/// End of paragraph markers?
	bool paragraph_markers;
	/// Use tooltips?
	bool use_tooltip;
	/// Use the colors from current system theme?
	bool use_system_colors;
	/// Use pixmap cache?
	bool use_pixmap_cache;
	/// Use QImage backend?
	bool use_qimage;
	/// Spellchecker engine: aspell, hunspell, etc
	std::string spellchecker;
	/// Alternate language for spellchecker
	std::string spellchecker_alt_lang;
	/// Escape characters
	std::string spellchecker_esc_chars;
	/// spellcheck continuously?
	bool spellcheck_continuously;
	/// spellcheck notes and comments?
	bool spellcheck_notes;
	/// minimum length of words to complete
	unsigned int completion_minlength;
	///
	bool use_kbmap;
	///
	std::string primary_kbmap;
	///
	std::string secondary_kbmap;
	///
	std::string lyxpipes;
	///
	std::string date_insert_format;
	///
	std::string language_custom_package;
	///
	bool language_auto_begin;
	///
	bool language_auto_end;
	///
	std::string language_command_begin;
	///
	std::string language_command_end;
	///
	std::string language_command_local;
	///
	bool language_global_options;
	///
	enum LangPackageSelection {
		LP_AUTO = 0,
		LP_BABEL,
		LP_CUSTOM,
		LP_NONE
	};
	///
	LangPackageSelection language_package_selection;
	///
	bool rtl_support;
	/// bidi cursor movement: true = visual, false = logical
	bool visual_cursor;
	///
	bool auto_number;
	///
	bool mark_foreign_language;
	///
	std::string gui_language;
	///
	std::string default_view_format;
	/// all available viewers
	Alternatives viewer_alternatives;
	/// all available editors
	Alternatives editor_alternatives;
	///
	bool mac_dontswap_ctrl_meta;
	///
	bool mac_like_word_movement;
	///
	bool cursor_follows_scrollbar;
	///
	bool scroll_below_document;
	///
	enum MacroEditStyle {
		MACRO_EDIT_INLINE_BOX = 0,
		MACRO_EDIT_INLINE,
		MACRO_EDIT_LIST
	};
	///
	MacroEditStyle macro_edit_style;
	///
	bool dialogs_iconify_with_main;
	///
	bool display_graphics;
	///
	bool show_banner;
	///
	enum PreviewStatus {
		PREVIEW_OFF,
		PREVIEW_NO_MATH,
		PREVIEW_ON
	};
	///
	PreviewStatus preview;
	///
	bool preview_hashed_labels;
	///
	double preview_scale_factor;
	/// user name
	std::string user_name;
	/// user email
	std::string user_email;
	/// icon set name
	std::string icon_set;
	/// True if the TeX engine cannot handle posix paths
	bool windows_style_tex_paths;
	/// True if the TeX engine can handle file names containing spaces
	bool tex_allows_spaces;
	/** Prepend paths to the PATH environment variable.
	 *  The string is input, stored and output in native format.
	 */
	std::string path_prefix;
	/** Prepend paths to the TEXINPUTS environment variable.
	 *  The string is input, stored and output in native format.
	 *  A '.' here stands for the current document directory.
	 */
	std::string texinputs_prefix;
	/// Use the cache for file converters?
	bool use_converter_cache;
	/// The maximum age of cache files in seconds
	unsigned int converter_cache_maxage;
	/// Sort layouts alphabetically
	bool sort_layouts;
	/// Group layout by their category
	bool group_layouts;
	/// Toggle toolbars in fullscreen mode?
	bool full_screen_toolbars;
	/// Toggle scrollbar in fullscreen mode?
	bool full_screen_scrollbar;
	/// Toggle tabbar in fullscreen mode?
	bool full_screen_tabbar;
	/// Toggle menubar in fullscreen mode?
	bool full_screen_menubar;
	/// Limit the text width?
	bool full_screen_limit;
	/// Width of limited screen (in pixels) in fullscreen mode
	int full_screen_width;
	///
	bool completion_cursor_text;
	///
	double completion_inline_delay;
	///
	bool completion_inline_math;
	///
	bool completion_inline_text;
	///
	int completion_inline_dots;
	///
	bool autocorrection_math;
	///
	double completion_popup_delay;
	///
	bool completion_popup_math;
	///
	bool completion_popup_text;
	///
	bool completion_popup_after_complete;
	///
	bool open_buffers_in_tabs;
	///
	bool single_close_tab_button;
	///
	bool single_instance;
	///
	std::string forward_search_dvi;
	///
	std::string forward_search_pdf;
	///
	int export_overwrite;
	/// Default decimal point when aligning table columns on decimal
	std::string default_decimal_point;
	///
	Length::UNIT default_length_unit;
	///
	enum ScrollWheelZoom {
		SCROLL_WHEEL_ZOOM_OFF,
		SCROLL_WHEEL_ZOOM_CTRL,
		SCROLL_WHEEL_ZOOM_SHIFT,
		SCROLL_WHEEL_ZOOM_ALT
	};
	///
	ScrollWheelZoom scroll_wheel_zoom;
	///
	bool force_paint_single_char;
	///
	int cursor_width;
	/// One of: yes, no, ask
	std::string close_buffer_with_last_view;
};


/** \c LyXRC_PreviewStatus is a wrapper for LyXRC::PreviewStatus.
 *  It can be forward-declared and passed as a function argument without
 *  having to expose LyXRC.h.
 */
class LyXRC_PreviewStatus {
	LyXRC::PreviewStatus val_;
public:
	LyXRC_PreviewStatus(LyXRC::PreviewStatus val) : val_(val) {}
	operator LyXRC::PreviewStatus() const { return val_; }
};

void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new);

///
extern LyXRC lyxrc;
///
extern LyXRC system_lyxrc;

// used by at least frontends/qt4/GuiPref.cpp
const long maxlastfiles = 20;

} // namespace lyx

#endif