/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * ModelsPrefGroupPanel.java
 *
 * Created on Aug 15, 2010, 12:53:49 PM
 */
package mpipeline.ltpdapreferences;

import java.io.File;
import java.util.Iterator;
import java.util.Observable;
import java.util.Observer;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JList;
import javax.swing.JTextField;
import mpipeline.utils.Utils;

/**
 *
 * @author hewitson
 */
public class ExtensionsPrefGroupPanel extends javax.swing.JPanel implements Observer {

  private ExtensionsPrefGroup extensionsPrefs;
  private Object removePaths[]; // Backup for MATLAB because java deletes the path before MATLAB is called.

  /** Creates new form ExtensionsPrefGroupPanel */
  public ExtensionsPrefGroupPanel(ExtensionsPrefGroup prefs) {
    this.extensionsPrefs = prefs;
    initComponents();

    DefaultListModel mdl = new DefaultListModel();
    searchPathList.setModel(mdl);
    setPreferences();
    extensionsPrefs.addObserver(this);
  }

  public void setPreferences() {
    updateExtensions();
  }

  /** This method is called from within the constructor to
   * initialize the form.
   * WARNING: Do NOT modify this code. The content of this method is
   * always regenerated by the Form Editor.
   */
  @SuppressWarnings("unchecked")
  // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
  private void initComponents() {

    jScrollPane1 = new javax.swing.JScrollPane();
    searchPathList = new javax.swing.JList();
    newPathTextField = new javax.swing.JTextField();
    addPathBtn = new javax.swing.JButton();
    browseBtn = new javax.swing.JButton();
    removePathBtn = new javax.swing.JButton();

    jScrollPane1.setViewportView(searchPathList);

    addPathBtn.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mpipeline/icons/add_small.png"))); // NOI18N
    addPathBtn.setRolloverIcon(new javax.swing.ImageIcon(getClass().getResource("/mpipeline/icons/add_small_ro.png"))); // NOI18N
    addPathBtn.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
        addPathBtnActionPerformed(evt);
      }
    });

    browseBtn.setText("Browse");
    browseBtn.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
        browseBtnActionPerformed(evt);
      }
    });

    removePathBtn.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mpipeline/icons/subtract_small.png"))); // NOI18N
    removePathBtn.setRolloverIcon(new javax.swing.ImageIcon(getClass().getResource("/mpipeline/icons/subtract_small_ro.png"))); // NOI18N
    removePathBtn.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
        removePathBtnActionPerformed(evt);
      }
    });

    org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
    this.setLayout(layout);
    layout.setHorizontalGroup(
      layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
      .add(layout.createSequentialGroup()
        .addContainerGap()
        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
          .add(layout.createSequentialGroup()
            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
              .add(layout.createSequentialGroup()
                .add(addPathBtn)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(removePathBtn))
              .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 386, Short.MAX_VALUE))
            .addContainerGap())
          .add(layout.createSequentialGroup()
            .add(newPathTextField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 314, Short.MAX_VALUE)
            .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
            .add(browseBtn)
            .add(20, 20, 20))))
    );
    layout.setVerticalGroup(
      layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
      .add(layout.createSequentialGroup()
        .addContainerGap()
        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
        .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
          .add(addPathBtn)
          .add(removePathBtn))
        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.CENTER)
          .add(newPathTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
          .add(browseBtn))
        .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );
  }// </editor-fold>//GEN-END:initComponents

  private void addPathBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addPathBtnActionPerformed

    if (newPathTextField.getText().length() != 0) {
      extensionsPrefs.addSearchPath(newPathTextField.getText());
    }
  }//GEN-LAST:event_addPathBtnActionPerformed

  private void removePathBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_removePathBtnActionPerformed
    // get selected values
    removePaths = searchPathList.getSelectedValues();
    extensionsPrefs.removePaths(removePaths);
  }//GEN-LAST:event_removePathBtnActionPerformed

  private void browseBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_browseBtnActionPerformed
    File newPath = Utils.getDirectory(this, "");
    if (newPath != null) {
      newPathTextField.setText(newPath.getPath());
    }
  }//GEN-LAST:event_browseBtnActionPerformed

  public void update(Observable o, Object arg) {
    if (arg != null) {

      if (arg instanceof Integer) {
        int identifier = ((Integer) arg).intValue();

        if (identifier == ExtensionsPrefGroup.EXTENSION_SEARCH_PATHS_CHANGED) {
          updateExtensions();
        }
        else {
          System.err.println("Unknown observation argument: " + arg.toString());
        }
      }
    }
  }

  private void updateExtensions() {
    DefaultListModel mmdl = (DefaultListModel) searchPathList.getModel();
    mmdl.removeAllElements();
    Iterator it = extensionsPrefs.getSearchPaths().iterator();
    while (it.hasNext()) {
      String path = (String) it.next();
      mmdl.addElement(path);
    }
  }

  public JButton getAddPathBtn() {
    return addPathBtn;
  }

  public JButton getRemovePathBtn() {
    return removePathBtn;
  }

  public JTextField getNewPathTextField() {
    return newPathTextField;
  }

  public JList getSearchPathList() {
    return searchPathList;
  }

  public Object[] getRemovePaths() {
    return removePaths;
  }

  // Variables declaration - do not modify//GEN-BEGIN:variables
  private javax.swing.JButton addPathBtn;
  private javax.swing.JButton browseBtn;
  private javax.swing.JScrollPane jScrollPane1;
  private javax.swing.JTextField newPathTextField;
  private javax.swing.JButton removePathBtn;
  private javax.swing.JList searchPathList;
  // End of variables declaration//GEN-END:variables
}