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Posted to dev@commons.apache.org by ra...@apache.org on 2006/03/01 15:35:59 UTC
svn commit: r382035 -
/jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java
Author: rahul
Date: Wed Mar 1 06:35:58 2006
New Revision: 382035
URL: http://svn.apache.org/viewcvs?rev=382035&view=rev
Log:
A quick Swing UI to front the stopwatch usecase.
Added:
jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java (with props)
Added: jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java?rev=382035&view=auto
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java (added)
+++ jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java Wed Mar 1 06:35:58 2006
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2006 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.scxml.env;
+
+import java.awt.BorderLayout;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.net.URL;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+
+
+/**
+ * Quick GUI to demonstrate the SCXML driven stopwatch.
+ *
+ * Separation of UI (this class) from behavior (StopWatch class).
+ * UI serves merely as a front to relay user initiated events to StopWatch
+ * object, which encapsulates all the behavior of a stopwatch.
+ * Using SCXML makes the StopWatch class simplistic, and provides a direct
+ * route from the UML model to the runtime.
+ *
+ * @see StopWatch
+ */
+public class StopWatchDisplay extends JFrame
+ implements ActionListener {
+
+ private StopWatch stopWatch;
+ private Image watchImage, watchIcon;
+
+ public StopWatchDisplay() {
+ super("SCXML stopwatch");
+ stopWatch = new StopWatch();
+ setupUI();
+ }
+
+ public void actionPerformed(ActionEvent e) {
+ String command = e.getActionCommand();
+ if (command.equals("START")) {
+ if (start.getText().equals("Start")) {
+ stopWatch.fireEvent(StopWatch.EVENT_START);
+ start.setText("Stop");
+ split.setEnabled(true);
+ } else if (start.getText().equals("Stop")) {
+ stopWatch.fireEvent(StopWatch.EVENT_STOP);
+ start.setText("Reset");
+ split.setEnabled(false);
+ } else {
+ stopWatch.fireEvent(StopWatch.EVENT_RESET);
+ start.setText("Start");
+ split.setText("Split");
+ }
+ } else if (command.equals("SPLIT")) {
+ if (split.getText().equals("Split")) {
+ stopWatch.fireEvent(StopWatch.EVENT_SPLIT);
+ split.setText("Unsplit");
+ } else {
+ stopWatch.fireEvent(StopWatch.EVENT_UNSPLIT);
+ split.setText("Split");
+ }
+ }
+ }
+
+ private void setupUI() {
+ URL imageURL = this.getClass().getClassLoader().
+ getResource("org/apache/commons/scxml/env/stopwatch.gif");
+ URL iconURL = this.getClass().getClassLoader().
+ getResource("org/apache/commons/scxml/env/stopwatchicon.gif");
+ Toolkit kit = Toolkit.getDefaultToolkit();
+ watchImage = kit.createImage(imageURL);
+ watchIcon = kit.createImage(iconURL);
+ WatchPanel panel = new WatchPanel();
+ panel.setLayout(new BorderLayout());
+ setContentPane(panel);
+ display = new JLabel(stopWatch.getDisplay());
+ panel.add(display, BorderLayout.PAGE_START);
+ start = makeButton("START", "start, stop, reset", "Start");
+ panel.add(start, BorderLayout.LINE_START);
+ state = new JLabel();
+ panel.add(state, BorderLayout.CENTER);
+ split = makeButton("SPLIT", "split, unsplit", "Split");
+ split.setEnabled(false);
+ panel.add(split, BorderLayout.LINE_END);
+ pack();
+ setLocation(200,200);
+ setIconImage(watchIcon);
+ setResizable(false);
+ setSize(250,125);
+ show();
+ setDefaultCloseOperation(EXIT_ON_CLOSE);
+ Timer displayTimer = new Timer();
+ displayTimer.scheduleAtFixedRate(new TimerTask() {
+ public void run() {
+ display.setText(DISPLAY_PREFIX + stopWatch.getDisplay()
+ + DISPLAY_SUFFIX);
+ state.setText(STATE_PREFIX + stopWatch.getCurrentState()
+ + STATE_SUFFIX);
+ }
+ }, 100, 100);
+ }
+
+ private JButton makeButton(final String actionCommand,
+ final String toolTipText, final String altText) {
+ JButton button = new JButton(altText);
+ button.setActionCommand(actionCommand);
+ button.setToolTipText(toolTipText);
+ button.addActionListener(this);
+ button.setOpaque(false);
+ return button;
+ }
+
+ class WatchPanel extends JPanel {
+ public void paintComponent(Graphics g) {
+ if(watchImage != null) {
+ g.drawImage(watchImage,0,0,this.getWidth(),this.getHeight(),this);
+ }
+ }
+ }
+
+ public static void main(String[] args) {
+ StopWatchDisplay stopWatchDisplay = new StopWatchDisplay();
+ }
+
+ private JLabel display, state;
+ private JButton start, split;
+ // spaces :: GridBagConstraints ;-)
+ private static final String
+ DISPLAY_PREFIX = "<html><font face=\"Courier\" color=\"maroon\"" +
+ " size=\"10\"><b> ",
+ DISPLAY_SUFFIX = "</b></font></html>",
+ STATE_PREFIX = "<html><font color=\"blue\" size=\"4\"" +
+ "> ",
+ STATE_SUFFIX = "</font></html>";
+
+}
+
Propchange: jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java
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Propchange: jakarta/commons/sandbox/scxml/trunk/src/test/java/org/apache/commons/scxml/env/StopWatchDisplay.java
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