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

#ifndef _EDIT_H_
#define _EDIT_H_

// Classes for Edit menu item off of main toolbar

#include <FL/Fl_Widget.H>
#include <FL/Fl_Text_Editor.H>
#include <FL/Fl_Text_Buffer.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Input.H>
#include <FL/Fl_Int_Input.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Round_Button.H>
#include <FL/Fl_Check_Button.H>
#include <FL/Fl_Return_Button.H>



// Class for window that pops up for "Find" or "Replace"

class Find_dialog : public Fl_Double_Window {

friend class Edit; 	// so it can call FindNext()

public:
	Find_dialog(void);
	~Find_dialog();

	// Callbacks
	static void FindNext_cb(Fl_Widget *, void * data);
	static void Replace_cb(Fl_Widget *, void * data);
	static void ReplaceAll_cb(Fl_Widget *, void * data);
	static void Cancel_cb(Fl_Widget *, void * data);
	static void Pattern_cb(Fl_Widget *, void * data);
	static void change_cb(Fl_Widget *, void * data);
	static void cursor_change_check(void * data);

	// Returns current search pattern
	const char * get_pattern(void);

	// Tells class which edit buffer to search in
	void set_editor(Fl_Text_Editor *);

	// Class instance can be either a Find or a Replace.
	// These change the personality.
	void as_Find(void);
	void as_Replace(void);

	// when not allowed to search/replace
	void gray_out(void);

private:
	// Callbacks
	void FindNext(void);
	void Replace(void);
	void ReplaceAll(void);
	void Cancel(void);
	void Pattern(void);
	void change(void);

	// Widgets
	Fl_Input * pattern_p;
	Fl_Input * replace_with_p;
	Fl_Button * replace_p;
	Fl_Button * replace_all_p;
	Fl_Check_Button * casematch_p;
	Fl_Box * direction_p;
	Fl_Round_Button * up_p;
	Fl_Round_Button * down_p;
	Fl_Return_Button * next_p;
	Fl_Button * cancel_p;

	// The text editor widget we are editing
	Fl_Text_Editor * editor_p;

	// true if current personality is "Replace," false if "Find."
	bool is_replace;

	// Where cursor was at last check
	int last_cursor_position;
};


// Class for window that pops up for Go To

class GoTo_dialog : Fl_Double_Window {

friend class Edit;

public:
	GoTo_dialog(void);
	~GoTo_dialog();

	// Callbacks
	static void OK_cb(Fl_Widget *, void * data);
	static void Cancel_cb(Fl_Widget *, void * data);

	// Tells us which editor instance to use
	void set_editor(Fl_Text_Editor * ed);

	// Initialize contents on GoTo field to the current line number
	void set_current_line();

private:
	// Callbacks
	void OK(void);
	void Cancel(void);

	// Widgets
	Fl_Int_Input * linenum_p;
	Fl_Return_Button * ok_p;
	Fl_Button * cancel_p;
	Fl_Text_Editor * editor_p;
};


// Class for Edit Menu from main toolbar

class Edit {
public:
	Edit();
	~Edit();

	// Callbacks
	static void Undo_cb(Fl_Widget *, void * data);
	static void Cut_cb(Fl_Widget *, void * data);
	static void Copy_cb(Fl_Widget *, void * data);
	static void Paste_cb(Fl_Widget *, void * data);
	static void Delete_cb(Fl_Widget *, void * data);
	static void Find_cb(Fl_Widget *, void * data);
	static void FindNext_cb(Fl_Widget *, void * data);
	static void Replace_cb(Fl_Widget *, void * data);
	static void GoTo_cb(Fl_Widget *, void * data);
	static void SelectAll_cb(Fl_Widget *, void * data);
	static void modify_cb(int, int, int, int, const char *, void * data);

	// Tells us which editor instance to use
	void set_editor(Fl_Text_Editor * ed);

	// true if there is something in the clipboard that can be pasted
	bool can_paste()	{ return wrote_to_clipboard; }
	void set_can_paste();

private:
	// Callbacks
	void Undo(void);
	void Cut(void);
	void Copy(void);
	void Paste(void);
	void Delete(void);
	void Find(void);
	void FindNext(void);
	void Replace(void);
	void GoTo(void);
	void SelectAll(void);

	// Widgets
	Fl_Text_Editor * editor_p;
	Fl_Text_Buffer * buffer_p;
	Find_dialog * find_p;
	GoTo_dialog * goto_p;

	// if wrote something to the cut/copy buffer
	bool wrote_to_clipboard;
};

#endif