#34 call onResize() when window size is changed
[nikiroo-utils.git] / src / jexer / teditor / Highlighter.java
... / ...
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1/*
2 * Jexer - Java Text User Interface
3 *
4 * The MIT License (MIT)
5 *
6 * Copyright (C) 2017 Kevin Lamonte
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 *
26 * @author Kevin Lamonte [kevin.lamonte@gmail.com]
27 * @version 1
28 */
29package jexer.teditor;
30
31import java.util.SortedMap;
32import java.util.TreeMap;
33
34import jexer.bits.CellAttributes;
35import jexer.bits.Color;
36
37/**
38 * Highlighter provides color choices for certain text strings.
39 */
40public class Highlighter {
41
42 /**
43 * The highlighter colors.
44 */
45 private SortedMap<String, CellAttributes> colors;
46
47 /**
48 * Public constructor sets the theme to the default.
49 */
50 public Highlighter() {
51 colors = new TreeMap<String, CellAttributes>();
52 }
53
54 /**
55 * See if this is a character that should split a word.
56 *
57 * @param ch the character
58 * @return true if the word should be split
59 */
60 public boolean shouldSplit(final char ch) {
61 // For now, split on punctuation
62 String punctuation = "'\"\\<>{}[]!@#$%^&*();:.,-+/*?";
63 if (punctuation.indexOf(ch) != -1) {
64 return true;
65 }
66 return false;
67 }
68
69 /**
70 * Retrieve the CellAttributes for a named theme color.
71 *
72 * @param name theme color name, e.g. "twindow.border"
73 * @return color associated with name, e.g. bold yellow on blue
74 */
75 public CellAttributes getColor(final String name) {
76 CellAttributes attr = (CellAttributes) colors.get(name);
77 return attr;
78 }
79
80 /**
81 * Sets to defaults that resemble the Borland IDE colors.
82 */
83 public void setJavaColors() {
84 CellAttributes color;
85
86 String [] keywords = {
87 "boolean", "byte", "short", "int", "long", "char", "float",
88 "double", "void", "new",
89 "static", "final", "volatile", "synchronized", "abstract",
90 "public", "private", "protected",
91 "class", "interface", "extends", "implements",
92 "if", "else", "do", "while", "for", "break", "continue",
93 "switch", "case", "default",
94 };
95 color = new CellAttributes();
96 color.setForeColor(Color.WHITE);
97 color.setBackColor(Color.BLUE);
98 color.setBold(true);
99 for (String str: keywords) {
100 colors.put(str, color);
101 }
102
103 String [] operators = {
104 "[", "]", "(", ")", "{", "}",
105 "*", "-", "+", "/", "=", "%",
106 "^", "&", "!", "<<", ">>", "<<<", ">>>",
107 "&&", "||",
108 ">", "<", ">=", "<=", "!=", "==",
109 ",", ";", ".", "?", ":",
110 };
111 color = new CellAttributes();
112 color.setForeColor(Color.CYAN);
113 color.setBackColor(Color.BLUE);
114 color.setBold(true);
115 for (String str: operators) {
116 colors.put(str, color);
117 }
118
119 String [] packageKeywords = {
120 "package", "import",
121 };
122 color = new CellAttributes();
123 color.setForeColor(Color.GREEN);
124 color.setBackColor(Color.BLUE);
125 color.setBold(true);
126 for (String str: packageKeywords) {
127 colors.put(str, color);
128 }
129
130 }
131
132
133}