// filename: Textbox.h
//   author: John Flores
//     date: May, 2003.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

#ifndef TEXTBOX_H
#define TEXTBOX_H

#include "Component.h"
#include "List.h"
#include "String.h"

#include <fstream.h>
#include <iostream.h>
#include <ctype.h>

typedef List<String>      strlist;
typedef strlist::iterator stritr;

class Textbox: public Component {
friend class Component;
    enum { TABSIZE = 4, NUMWIDTH = 8 };

    int height;
    int width;
    int numwidth;
    int textwidth;

    WINDOW *win;

    strlist text;
    stritr  startline;
    stritr  currentline;
    strlist clipboard;

    int startrow;
    int currentrow;
    int startcol;
    int currentcol;
    int startcolbkup;
    int currentcolbkup;

    int findidx;
    int findlen;
    stritr findline;

    bool shownumbers;

    void keyenter();
    void keybackspace();
    void keydelete();
    void keytab();
    void printkey(char key);

    int  prevkeypress;

    void goleft();
    void goright();
    bool goup();
    bool godown();
    void gopageup();
    void gopagedown();
    void goend();
    void gohome();
    void gotop();

public:
    Textbox(int height, int width, 
            int row, int col, 
            Component *parent);
    virtual ~Textbox();

    void notify(Component *notifier);

    void flush();
    void display();
    int  edit();
    bool find(const char *txtfind);
    bool replace(const char *txtreplace);
    void gotoline(int line);
    void copy();
    void cut();
    void paste();

    void togglenumbers();

    bool save(const char *filename);
    bool load(const char *filename);
};

#endif