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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 | */ | |
29 | package jexer.teditor; | |
30 | ||
31 | import java.util.SortedMap; | |
32 | import java.util.TreeMap; | |
33 | ||
34 | import jexer.bits.CellAttributes; | |
35 | import jexer.bits.Color; | |
36 | ||
37 | /** | |
38 | * Highlighter provides color choices for certain text strings. | |
39 | */ | |
40 | public 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 | } |