|
1 package thinlet.drafts;
2
3 import java.awt.*;
4 import java.io.*;
5 import java.text.*;
6 import thinlet.*;
7
8 public class FolderBrowser {
9
10 private Image openedicon, closedicon, fileicon;
11
12 public void init(Thinlet thinlet, Object  tree) {
13 addNode(thinlet, tree, "C:", true);
15 }
16
17 public void expand(Thinlet thinlet, Object tree, Object node) {
18 if (thinlet.getIcon(node, "icon") == closedicon) {
19 if (openedicon == null) {
20 openedicon = thinlet.getIcon("/icon/open.gif");
21 }
22 thinlet.setIcon(node, "icon", openedicon);
23 }
24
25 if (thinlet.getProperty(node, "load") == Boolean.TRUE) {
26 String path = "";
27 for (Object item = node; item != tree; item = thinlet.getParent(item)) {
28 path = thinlet.getString(item, "text") + File.separatorChar + path;
29 }
30 String [] list = new File(path).list();
31
32 int dircount = 0;
33 for (int i = 0; i < list.length; i++) { if (new File(path, list[i]).isDirectory()) {
35 String swap = list[dircount]; list[dircount] = list[i]; list[i] = swap;
36 dircount++;
37 }
38 }
39
40 Collator collator = Collator.getInstance();
41 collator.setStrength(Collator.SECONDARY);
42 for (int i = 0; i < list.length; i++) { for (int j = i; (j > 0) && ((i < dircount) || (j > dircount)) &&
44 (collator.compare(list[j - 1], list[j]) > 0); j--) {
45 String swap = list[j]; list[j] = list[j - 1]; list[j - 1] = swap;
46 }
47 }
48
49 thinlet.removeAll(node);
50 for (int i = 0; i < list.length; i++) {
51 addNode(thinlet, node, list[i], i < dircount);
52 }
53 thinlet.putProperty(node, "load", null);
54 }
55 }
56
57 public void collapse(Thinlet thinlet, Object node) {
58 if (thinlet.getIcon(node, "icon") == openedicon) {
59 thinlet.setIcon(node, "icon", closedicon);
60 }
61 }
62
63 private void addNode(Thinlet thinlet, Object node, String text, boolean directory) {
64 Object subnode = Thinlet.create("node");
65 thinlet.setString(subnode, "text", text);
66 if (directory) {
67 if (closedicon == null) { closedicon = thinlet.getIcon("/icon/folder.gif"); }
68 thinlet.setIcon(subnode, "icon", closedicon);
69 } else {
70 if (fileicon == null) { fileicon = thinlet.getIcon("/icon/new.gif"); }
71 thinlet.setIcon(subnode, "icon", fileicon);
72 }
73 thinlet.add(node, subnode);
74 if (directory) {
75 thinlet.setBoolean(subnode, "expanded", false);
76 thinlet.putProperty(subnode, "load", Boolean.TRUE);
77 Object loading = Thinlet.create("node");
78 thinlet.setString(loading, "text", "loading...");
79 thinlet.add(subnode, loading);
80 }
81 }
82 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.