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.BorderLayout
8: import javax.swing.ImageIcon
9: import javax.swing.JToolBar
10:
11: import swing._
12: import swing.event._
13: import BorderPanel._
14:
15: // ----------------------------------------
16: object ToolBarDemo {
17: val version = ToolBarDemo
18: .getClass.getName+": #1.0.30"
19: }
20:
21: // ----------------------------------------
22: class ToolBarDemo extends BorderPanel {
23: // implements ActionListener
24:
25: //Create the toolbar.
26: val toolBar = new JToolBar("Still draggable") {
27: addButtons(this)
28: peer.add(this, BorderLayout.PAGE_START)
29: }
30:
31: def addButtons(toolBar: JToolBar) = {
32: val seq = Array(
33: Array( //first button
34: "Back24",
35: "taken you to the previous .",
36: "Back to previous something-or-other",
37: "Previous"),
38: Array( //second button
39: "Up24",
40: "taken you up one level to .",
41: "Up to something-or-other",
42: "Up"),
43: Array( //third button
44: "Forward24",
45: "taken you to the next .",
46: "Forward to something-or-other",
47: "Next"))
48:
49: for (Array(imageName, command, toolTipText, altText) <- seq) {
50: var button = makeNavigationButton(
51: imageName, command, toolTipText, altText)
52: toolBar.add(button.peer)
53: }
54: }
55:
56: lazy val panel: ToolBarDemo = this
57: def makeNavigationButton(
58: imageName: String,
59: actionCommand: String,
60: toolTipText: String,
61: altText: String) = {
62:
63: //Create and initialize the button.
64: new CmdButton("") {
65: command = new TextCommand(panel, actionCommand)
66: tooltip = toolTipText
67:
68: //Look for the image.
69: val imgLocation = "images/%s.gif" format imageName
70: val imageURL = ToolBarDemo.getClass.getResource(imgLocation)
71: if (imageURL != null) {
72: this.icon = new ImageIcon(imageURL, altText)
73: } else {
74: this.peer.setText(altText)
75: System.err.println("Resource not found: " + imgLocation)
76: }
77: }
78: }
79:
80: //Create the text area used for output. Request
81: //enough space for 5 rows and 30 columns.
82: val textArea = new TextArea(5,30) {
83: editable = false
84: }
85: val scrollPane = new ScrollPane(textArea) {
86: add(this, Position.Center)
87: }
88: }
89:
90: // ---------------------------------------- Command::Invoker
91: trait CommandHolder extends Publisher {
92: private var _command: Command = Command.NoCommand
93: def command: Command = _command
94: def command_=(a: Command) {
95: _command = a
96: command.listenTo(this)
97: }
98: }
99:
100: class CmdButton(override val text: String)
101: extends Button(text) with CommandHolder
102:
103: // ---------------------------------------- Command::Command
104: object Command {
105: case object NoCommand extends Command {
106: reactions += {
107: case ButtonClicked(source) =>
108: println(":: ButtonClicked")
109: }
110: }
111: }
112: class Command extends Publisher
113:
114: // ---------------------------------------- Command::ConcreteCommand
115: // ---------------------------------------- Command::Receiver
116: class TextCommand(
117: val panel: ToolBarDemo,
118: val description: String) extends Command {
119:
120: // Handle each button.
121: reactions += {
122: case ButtonClicked(source) =>
123: displayResult(
124: "If this were a real app,\n it would have %s"
125: format description)
126: }
127: def displayResult(actionDescription: String) {
128: val textArea = panel.textArea
129: textArea.append("%s\n" format actionDescription)
130: textArea.caret.position = textArea.peer.getDocument.getLength
131: }
132: }
133:
134: // ========================================
