EditableBufferedReader/Line.java at main · Arnauec/EditableBufferedReader · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package labpad;

import java.util.*;

/**
 *
 * @author epicur
 */
public class Line extends Observable {

    static final int ESCAPE = 27;
    static final int CARRIAGE_RETURN = 13;
    static final int BACKSPACE = 127;
    static final int FLETXA_DRETA = 300;
    static final int FLETXA_ESQUERRA = 301;
    static final int CLIC_DRET = 302;
    static final int CLIC_ESQUERRA = 303;
    static final int RODA_AMUNT = 304;
    static final int RODA_AVALL = 305;
    static final int INSERTAR = 306;
    static final int FIN = 307;
    static final int INICI = 308;
    static final int SUPRIMIR = 309;
    private int numChar;
    private int posx;
    // private int posy; ho comento perque de moment només hem de tractar una línia
    private boolean insercio; // true - inserció ; false - sobreescriptura
    private MyStringBuffer string;

    public Line(Console console) {
        this.insercio = false;
        this.string = new MyStringBuffer();
        this.addObserver(console);
    }

    public void carReturn() {
        this.notifyObservers();
    }

    public void end() {
        posx = numChar;
    }

    public void home() {
        posx = 0;
        setChanged();
        notifyObservers(new Console.Command(INICI, 0));
    }

    public void addChar(char a) {
        if (!this.insercio) {
            string.setChar(posx, a);
            if (posx == numChar) {
                numChar++;
            }
        } else {
            string.insert(posx, a);
            numChar++;
        }
        posx++;
        int o = 0;
        if (insercio) {
            o = 1;
        }
        setChanged();
        notifyObservers(new Console.Command(a, o));
    }

    public void setMode() {
        this.insercio = !this.insercio;
    }

    public boolean getMode() {
        return this.insercio;
    }

    public void deleteChar() {
        string.deleteCharAt(posx);
        posx--;
        numChar--;
        setChanged();
        notifyObservers(new Console.Command(BACKSPACE, 0));
    }

    public void suprimirChar() {
        string.deleteCharAt(posx);
        numChar--;
        this.setChanged();
        this.notifyObservers(new Console.Command(SUPRIMIR, 0));
    }

    public boolean moveCursorLeft() {
        if ((posx == 0)) {
            return false;
        }
        posx--;
        setChanged();
        notifyObservers(new Console.Command(FLETXA_ESQUERRA, 0));
        return true;
    }

    public boolean moveCursorRight() {
        if (posx == numChar) {
            return false;
        }
        posx++;
        setChanged();
        notifyObservers(new Console.Command(FLETXA_DRETA, 0));
        return true;
    }

    public int getPosx() {
        return this.posx;
    }

    public void clicDret(int posCursor) {
        int moviment = 0;
        if (!(posCursor > numChar)) {
            moviment = posCursor - posx;
            posx = posCursor;
        }
        setChanged();
        notifyObservers(new Console.Command(CLIC_DRET, moviment));
    }

    public int getNumChar() {
        return this.numChar;
    }

    public String toString() {
        return this.string.toString();
    }

    public void debugMode() {
        System.out.print("Posició cursor: " + posx + "\r\n");
        System.out.print("Número de caràcters totals: " + numChar + "\r\n");
        System.out.print("Mode: " + insercio + "\r\n");
        int count = 0;
        while (count < numChar) {
            System.out.print(string);
            count++;
        }
        System.out.print("\r\n");
    }
}