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daa4106c | 1 | /* |
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2 | * Jexer - Java Text User Interface |
3 | * | |
e16dda65 | 4 | * The MIT License (MIT) |
0d47c546 | 5 | * |
a2018e99 | 6 | * Copyright (C) 2017 Kevin Lamonte |
0d47c546 | 7 | * |
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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: | |
0d47c546 | 14 | * |
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15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
0d47c546 | 17 | * |
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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. | |
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25 | * |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
28 | */ | |
29 | package jexer; | |
30 | ||
31 | import java.io.File; | |
32 | import java.util.ArrayList; | |
615a0d99 | 33 | import java.util.Collections; |
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34 | import java.util.List; |
35 | ||
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36 | /** |
37 | * TDirectoryList shows the files within a directory. | |
38 | */ | |
051e2913 | 39 | public class TDirectoryList extends TList { |
0d47c546 | 40 | |
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41 | // ------------------------------------------------------------------------ |
42 | // Variables -------------------------------------------------------------- | |
43 | // ------------------------------------------------------------------------ | |
44 | ||
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45 | /** |
46 | * Files in the directory. | |
47 | */ | |
48 | private List<File> files; | |
49 | ||
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50 | /** |
51 | * Root path containing files to display. | |
52 | */ | |
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53 | private File path; |
54 | ||
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55 | // ------------------------------------------------------------------------ |
56 | // Constructors ----------------------------------------------------------- | |
57 | // ------------------------------------------------------------------------ | |
58 | ||
59 | /** | |
60 | * Public constructor. | |
61 | * | |
62 | * @param parent parent widget | |
63 | * @param path directory path, must be a directory | |
64 | * @param x column relative to parent | |
65 | * @param y row relative to parent | |
66 | * @param width width of text area | |
67 | * @param height height of text area | |
68 | */ | |
69 | public TDirectoryList(final TWidget parent, final String path, final int x, | |
70 | final int y, final int width, final int height) { | |
71 | ||
72 | this(parent, path, x, y, width, height, null); | |
73 | } | |
74 | ||
75 | /** | |
76 | * Public constructor. | |
77 | * | |
78 | * @param parent parent widget | |
79 | * @param path directory path, must be a directory | |
80 | * @param x column relative to parent | |
81 | * @param y row relative to parent | |
82 | * @param width width of text area | |
83 | * @param height height of text area | |
84 | * @param action action to perform when an item is selected | |
85 | */ | |
86 | public TDirectoryList(final TWidget parent, final String path, final int x, | |
87 | final int y, final int width, final int height, final TAction action) { | |
88 | ||
89 | super(parent, null, x, y, width, height, action); | |
90 | files = new ArrayList<File>(); | |
91 | setPath(path); | |
92 | } | |
93 | ||
94 | // ------------------------------------------------------------------------ | |
95 | // TList ------------------------------------------------------------------ | |
96 | // ------------------------------------------------------------------------ | |
97 | ||
98 | // ------------------------------------------------------------------------ | |
99 | // TDirectoryList --------------------------------------------------------- | |
100 | // ------------------------------------------------------------------------ | |
101 | ||
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102 | /** |
103 | * Set the new path to display. | |
104 | * | |
105 | * @param path new path to list files for | |
106 | */ | |
329fd62e | 107 | public void setPath(final String path) { |
a043164f | 108 | this.path = new File(path); |
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109 | |
110 | List<String> newStrings = new ArrayList<String>(); | |
111 | files.clear(); | |
112 | ||
113 | // Build a list of files in this directory | |
114 | File [] newFiles = this.path.listFiles(); | |
115 | if (newFiles != null) { | |
116 | for (int i = 0; i < newFiles.length; i++) { | |
117 | if (newFiles[i].getName().startsWith(".")) { | |
118 | continue; | |
119 | } | |
120 | if (newFiles[i].isDirectory()) { | |
121 | continue; | |
122 | } | |
123 | files.add(newFiles[i]); | |
124 | newStrings.add(renderFile(files.size() - 1)); | |
125 | } | |
126 | } | |
615a0d99 | 127 | Collections.sort(newStrings); |
3649b921 | 128 | setList(newStrings); |
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129 | |
130 | // Select the first entry | |
131 | if (getMaxSelectedIndex() >= 0) { | |
132 | setSelectedIndex(0); | |
133 | } | |
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134 | } |
135 | ||
136 | /** | |
137 | * Get the path that is being displayed. | |
138 | * | |
139 | * @return the path | |
140 | */ | |
141 | public File getPath() { | |
3649b921 | 142 | path = files.get(getSelectedIndex()); |
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143 | return path; |
144 | } | |
0d47c546 | 145 | |
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146 | /** |
147 | * Format one of the entries for drawing on the screen. | |
148 | * | |
149 | * @param index index into files | |
150 | * @return the line to draw | |
151 | */ | |
329fd62e | 152 | private String renderFile(final int index) { |
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153 | File file = files.get(index); |
154 | String name = file.getName(); | |
155 | if (name.length() > 20) { | |
156 | name = name.substring(0, 17) + "..."; | |
157 | } | |
158 | return String.format("%-20s %5dk", name, (file.length() / 1024)); | |
159 | } | |
160 | ||
0d47c546 | 161 | } |