/* Copyright (c) 2006 by Arkkra Enterprises */
/* All rights reserved */

#ifndef _FILE_H_
#define _FILE_H_

#include <FL/Fl.H>
#include <FL/Fl_Widget.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Input.H>
#include <FL/Fl_Text_Editor.H>
#include <FL/Fl_File_Browser.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Return_Button.H>
#include <FL/Fl_Choice.H>
#include <FL/filename.H>

class Main;


// Class used to ask user if they want to save changes.
// The FLTK fl_choice doesn't do quite what we want, so we make our own...

class Save_confirm_dialog : Fl_Double_Window {
public:
	enum Answer { Cancel, No, Yes };

	// This brings up the dialog
	static Answer confirm_save(const char * text, bool hide_the_No = false);

private:
	Save_confirm_dialog(const char * text);
	~Save_confirm_dialog(void);

	// Widgets
	Fl_Box * icon_p;
	Fl_Box * message_p;
	Fl_Return_Button * yes_p;
	Fl_Button * no_p;
	Fl_Button * cancel_p;
};



// Class for the items off of "File" on the main menu bar

class File {

friend class Run;

public:
	File();
	~File();

	// Callbacks
	static void modify_cb(int, int, int, int, const char *, void * data);
	static void New_cb(Fl_Widget *, void * data);
	static void NewFromTemplate_cb(Fl_Widget *, void * data);
	static void Open_cb(Fl_Widget *, void * data);
	static void Save_cb(Fl_Widget *, void * data);
	static void SaveAs_cb(Fl_Widget *, void * data);
	static void Exit_cb(Fl_Widget *, void * data);

	// Load a file into the text editor
	void load_file(const char * name);

	// Give access to the text editor buffer
	Fl_Text_Buffer * get_buffer() { return editor_p->buffer(); }

	// Gives real filename, or "Untitled.mup" if there is none
	const char * effective_filename();

	// This class needs access to Main class and its text editor.
	// Creator should call these to point to the proper instances 
	void set_editor(Fl_Text_Editor * ed_p);
	void set_parent(Main * main_p);

	// These show the dialog and return the file name the user enters.
	const char * open_ask_user(void);
	const char * save_as_ask_user(void);

	// Ask user if they want to save the currently unsaved changes.
	Save_confirm_dialog::Answer save_changes_check(const char * extra_text = "",
						bool hide_the_No = false);

#ifndef OS_LIKE_WIN32
	// Make icon for Mup files.
	static void add_mup_icon(void);
#endif


private:
	// Callbacks
	void New(void);
	void Open(void);
	void NewFromTemplate(void);
	void Save(bool honor_auto_display = true);
	void SaveAs(bool honor_auto_display = true);
	void Exit(void);

	// Write out the current file
	void save_file(bool honor_auto_display);

	// Put current file name in window label
	void set_window_label(void);

	// Reset things for starting to edit a different file
	void begin_new_file(void);

	// The name of file being edited
	char * filename;

	// If buffer has changed since last being saved
	bool unsaved_changes;

	// Pointers to other class instances we need
	Fl_Text_Editor * editor_p;
	Main * parent_window_p;
};

#endif