91 lines
2.9 KiB
Java
Executable File
91 lines
2.9 KiB
Java
Executable File
package com.bytezone.diskbrowser.utilities;
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import java.awt.Font;
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import java.awt.Toolkit;
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import java.awt.event.ActionEvent;
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import java.awt.event.KeyEvent;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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import javax.swing.AbstractAction;
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import javax.swing.Action;
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import javax.swing.JLabel;
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import javax.swing.JOptionPane;
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import javax.swing.KeyStroke;
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// -----------------------------------------------------------------------------------//
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public class EnvironmentAction extends AbstractAction
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// -----------------------------------------------------------------------------------//
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{
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// ---------------------------------------------------------------------------------//
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public EnvironmentAction ()
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// ---------------------------------------------------------------------------------//
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{
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super ("Environment...");
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putValue (Action.SHORT_DESCRIPTION, "Display java details");
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int mask = Toolkit.getDefaultToolkit ().getMenuShortcutKeyMaskEx ();
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putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke (KeyEvent.VK_E, mask));
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public void actionPerformed (ActionEvent e)
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// ---------------------------------------------------------------------------------//
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{
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TextFormatter textFormatter = new TextFormatter ();
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textFormatter.addLine ("Java version", System.getProperty ("java.runtime.version"));
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textFormatter.addLine ();
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String userHome = System.getProperty ("user.home");
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String path = System.getProperty ("java.class.path");
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for (String s : path.split (File.pathSeparator))
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{
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if (s.startsWith (userHome))
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s = "~" + s.substring (userHome.length ());
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textFormatter.addLine ("Classpath", s);
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}
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JOptionPane.showMessageDialog (null, textFormatter.toLabel (), "Java Environment",
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JOptionPane.INFORMATION_MESSAGE);
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}
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// ---------------------------------------------------------------------------------//
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class TextFormatter
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// ---------------------------------------------------------------------------------//
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{
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List<String> titles = new ArrayList<> ();
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List<String> texts = new ArrayList<> ();
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void addLine (String title, String text)
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{
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titles.add (title);
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texts.add (text);
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}
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void addLine ()
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{
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addLine ("", "");
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}
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JLabel toLabel ()
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{
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StringBuilder text = new StringBuilder ("<html>");
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for (int i = 0; i < texts.size (); i++)
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{
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String title = titles.get (i);
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if (title.length () == 0)
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text.append ("<br>");
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else
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text.append (String.format ("%s : %s<br>", title, texts.get (i)));
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}
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text.append ("</html>");
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JLabel label = new JLabel (text.toString ());
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label.setFont (new Font ("Monospaced", Font.PLAIN, 13));
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return label;
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}
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}
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} |