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Java > Open Source Codes > com > jeantessier > classreader > Printer


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36 import java.util.*;
37
38 public abstract class Printer extends VisitorBase {
39     private PrintWriter out;
40     private String JavaDoc indentText = " ";
41     private int indentLevel = 0;
42
43     public Printer(PrintWriter out) {
44         this.out = out;
45     }
46     
47     public String JavaDoc getIndentText() {
48         return indentText;
49     }
50
51     public void setIndentText(String JavaDoc indentText) {
52         this.indentText = indentText;
53     }
54     
55     protected Printer append(boolean b) {
56         out.print(b);
57         return this;
58     }
59
60     protected Printer append(char c) {
61         out.print(c);
62         return this;
63     }
64
65     protected Printer append(char[] s) {
66         out.print(s);
67         return this;
68     }
69
70     protected Printer append(double d) {
71         out.print(d);
72         return this;
73     }
74
75     protected Printer append(float f) {
76         out.print(f);
77         return this;
78     }
79
80     protected Printer append(int i) {
81         out.print(i);
82         return this;
83     }
84
85     protected Printer append(long l) {
86         out.print(l);
87         return this;
88     }
89
90     protected Printer append(Object JavaDoc obj) {
91         out.print(obj);
92         return this;
93     }
94
95     protected Printer append(String JavaDoc s) {
96         out.print(s);
97         return this;
98     }
99
100     protected Printer indent() {
101         for (int i=0; i<indentLevel; i++) {
102             append(getIndentText());
103         }
104
105         return this;
106     }
107
108     protected Printer eol() {
109         out.println();
110         return this;
111     }
112
113     protected void raiseIndent() {
114         indentLevel++;
115     }
116
117     protected void lowerIndent() {
118         indentLevel--;
119     }
120 }
121
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