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.Color
8: import java.awt.FileDialog
9: import swing._
10: import swing.event._
11:
12: // ----------------------------------------
13: object FullCommand {
14: val version = FullCommand
15: .getClass.getName+": #1.0.12"
16: }
17:
18: // ---------------------------------------- Command::Client
19: class FullCommand(val frame: Frame) extends FlowPanel {
20:
21: def createMenuBar = {
22: val menuBar = new MenuBar
23: val menu = new Menu(
24: "File") {
25: menuBar.contents += this
26: }
27: new CmdMenu(
28: "Open...") {
29: command = new FileCommand(frame)
30: menu.contents += this
31: }
32: new CmdMenu(
33: "Exit") {
34: command = new ExitCommand(frame)
35: menu.contents += this
36: }
37: menuBar
38: }
39:
40: def panel: Panel = this
41: new CmdButton(
42: "Red") {
43: command = new RedCommand(panel)
44: contents += this
45: }
46:
47: frame.title = "Frame with external commands"
48: frame.menuBar = createMenuBar
49: }
50:
51: // ---------------------------------------- Command::Invoker
52: trait CommandHolder extends Publisher {
53: private var _command: Command = Command.NoCommand
54: def command: Command = _command
55: def command_=(a: Command) {
56: _command = a
57: command.listenTo(this)
58: }
59: }
60:
61: class CmdButton(override val text: String)
62: extends Button(text) with CommandHolder
63:
64: class CmdMenu(override val text: String)
65: extends MenuItem(text) with CommandHolder
66:
67: // ---------------------------------------- Command::Command
68: object Command {
69: case object NoCommand extends Command {
70: reactions += {
71: case ButtonClicked(source) =>
72: println(":: ButtonClicked")
73: }
74: }
75: }
76: class Command extends Publisher
77:
78: // ---------------------------------------- Command::ConcreteCommand
79: // ---------------------------------------- Command::Receiver
80: class RedCommand(val panel: Panel) extends Command {
81: reactions += {
82: case ButtonClicked(source) =>
83: panel.background = Color.red
84: }
85: }
86:
87: class FileCommand(val frame: Frame) extends Command {
88: reactions += {
89: case ButtonClicked(source) =>
90: val dialog = new FileDialog(frame.peer, "Open file")
91: dialog.setVisible(true)
92: }
93: }
94:
95: class ExitCommand(val frame: Frame) extends Command {
96: reactions += {
97: case ButtonClicked(source) =>
98: frame.closeOperation
99: }
100: }
101:
102: // ========================================
