1: //..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
2: /*
3: * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
4: */
5: package components
6:
7: import java.awt.Dimension
8: import java.awt.Font
9: import javax.swing.ImageIcon
10: import swing._
11: import swing.event._
12: import ListView._
13:
14: // ----------------------------------------
15: object SplitPaneDemo {
16: val version = SplitPaneDemo
17: .getClass.getName+": #1.0.22"
18: }
19:
20: // ----------------------------------------
21: //SplitPaneDemo itself is not a visible component.
22: class SplitPaneDemo extends FlowPanel {
23: // implements ListSelectionListener
24:
25: val imageNames = Array(
26: "Bird", "Cat", "Dog", "Rabbit", "Pig", "dukeWaveRed",
27: "kathyCosmo", "lainesTongue", "left", "middle", "right", "stickerface")
28:
29: //Create the list of images and put it in a scroll pane.
30: def list = new ListView(imageNames) {
31: selection.intervalMode = IntervalMode.Single
32: peer.setSelectedIndex(0)
33: Command.listenTo(selection)
34: }
35: val listScrollPane = new ScrollPane(list) {
36: minimumSize = _minimumSize
37: }
38:
39: val picture = new Label() {
40: font = font.deriveFont(Font.ITALIC)
41: horizontalAlignment = Alignment.Center
42: }
43: val pictureScrollPane = new ScrollPane(picture) {
44: minimumSize = _minimumSize
45: }
46:
47: //Provide minimum sizes for the two components in the split pane.
48: val _minimumSize = new Dimension(100, 50)
49:
50: //Create a split pane with the two scroll panes in it.
51: val splitPane = new SplitPane(
52: Orientation.Vertical,
53: listScrollPane,
54: pictureScrollPane) {
55: oneTouchExpandable = true
56: dividerLocation = 150
57: preferredSize = new Dimension(400, 200)
58: SplitPaneDemo.this.contents += this
59: }
60:
61: //Provide a preferred size for the split pane.
62: updateLabel(imageNames(list.selection.leadIndex))
63:
64: // ----------------------------------------
65: //Listens to the list
66: // valueChanged(ListSelectionEvent)
67: object Command extends Publisher {
68: reactions += {
69: case ListSelectionChanged(source, range, live) =>
70: updateLabel(imageNames(source.selection.leadIndex))
71: }
72: }
73:
74: //Renders the selected image
75: def updateLabel(name: String) {
76: val icon = createImageIcon("images/%s.gif" format name)
77: picture.icon = icon
78: picture.text = if (icon != null) null else "Image not found"
79: }
80:
81: /*'****************************************'
82: //Used by SplitPaneDemo2
83: public JList getImageList() {
84: return list;
85: }
86: public JSplitPane getSplitPane() {
87: return splitPane;
88: }
89: '****************************************'*/
90:
91: /** Returns an ImageIcon, or null if the path was invalid. */
92: def createImageIcon(path: String): ImageIcon = {
93: val imgURL = SplitPaneDemo.getClass.getResource(path)
94: if (imgURL != null) {
95: return new ImageIcon(imgURL)
96: } else {
97: System.err.println("Couldn't find file: " + path)
98: return null
99: }
100: }
101: }
102:
103: // ========================================
