cvs commit: logging-log4j/src/java/org/apache/log4j/chainsaw/vfs PreviewPanel.java

[ps...@apache.org]

psmith      2004/05/22 01:03:05

  Added:       src/java/org/apache/log4j/chainsaw/vfs PreviewPanel.java
  Log:
  A simple Panel designed to display some text of a log.
  
  Revision  Changes    Path
  1.1                  logging-log4j/src/java/org/apache/log4j/chainsaw/vfs/PreviewPanel.java
  
  Index: PreviewPanel.java
  ===================================================================
  package org.apache.log4j.chainsaw.vfs;
  
  import java.awt.BorderLayout;
  import java.awt.event.ActionEvent;
  import java.awt.event.ActionListener;
  import java.beans.PropertyChangeEvent;
  import java.beans.PropertyChangeListener;
  
  import javax.swing.AbstractAction;
  import javax.swing.Action;
  import javax.swing.Box;
  import javax.swing.JLabel;
  import javax.swing.JPanel;
  import javax.swing.JScrollPane;
  import javax.swing.JTextArea;
  
  import org.apache.log4j.chainsaw.SmallButton;
  import org.apache.log4j.chainsaw.icons.LineIconFactory;
  
  public class PreviewPanel extends JPanel {
  
      private Actions previewActions = new Actions();
      
      private SmallButton closeButton = new SmallButton();
  
      private JTextArea textArea = new JTextArea();
      private JScrollPane scrollPane = new JScrollPane(textArea);
      
      public PreviewPanel() {
          initGUI();
          initListeners();
      }
  
      Actions getActions() {
          return previewActions;
      }
      
      /**
       * 
       */
      private void initListeners() {
      }
  
      void initGUI() {
          setLayout(new BorderLayout());
  
          closeButton.addActionListener(new ActionListener() {
  
              public void actionPerformed(ActionEvent e) {
                  getActions().TOGGLE_PREVIEW_PANEL.actionPerformed(e);
              }});
          closeButton.setText("");
          closeButton.setToolTipText(getActions().TOGGLE_PREVIEW_PANEL.getValue(Action.SHORT_DESCRIPTION).toString());
          closeButton.setIcon(LineIconFactory.createCloseIcon());
          textArea.setEditable(false);
          
          Box box = Box.createHorizontalBox();
          box.add(new JLabel("Preview"));
          box.add(Box.createHorizontalGlue());
          box.add(closeButton);
  
          add(box, BorderLayout.NORTH);
          add(scrollPane, BorderLayout.CENTER);
  
      }
      
      class Actions{
        Action TOGGLE_PREVIEW_PANEL = new AbstractAction() {
  
          public void actionPerformed(ActionEvent e) {
            boolean oldValue = PreviewPanel.this.isVisible();
            boolean newValue = !oldValue;
            PreviewPanel.this.setVisible(newValue);
            PreviewPanel.this.firePropertyChange("visible", oldValue, newValue);
            PreviewPanel.this.invalidate();
          }};
          
          private Actions() {
              TOGGLE_PREVIEW_PANEL.putValue(Action.SHORT_DESCRIPTION, "Hides the Preview Panel");
              TOGGLE_PREVIEW_PANEL.putValue(Action.NAME, "Hide Preview Panel");
  
              PreviewPanel.this.addPropertyChangeListener("visible", new PropertyChangeListener() {
  
                  public void propertyChange(PropertyChangeEvent evt) {
                      boolean newValue = ((Boolean)evt.getNewValue()).booleanValue();
                      if(newValue) {
                          TOGGLE_PREVIEW_PANEL.putValue(Action.SHORT_DESCRIPTION, "Hides the Preview Panel");
                          TOGGLE_PREVIEW_PANEL.putValue(Action.NAME, "Hide Preview Panel");
                      }else {
                          TOGGLE_PREVIEW_PANEL.putValue(Action.SHORT_DESCRIPTION, "Shows the Preview Panel");
                          TOGGLE_PREVIEW_PANEL.putValue(Action.NAME, "Show Preview Panel");
                      }
                  }});
          }
      }
  
      /**
       * @param string
       */
      public void setPreviewText(String string) {
          textArea.setText(string);
      }
  }
  
  

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