FormulaDialog.java

/**
 * Created : Mar 27, 2012
 *
 * @author pquiring
 */

import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import javax.swing.*;

public class FormulaDialog extends javax.swing.JDialog {

  /**
   * Creates new form FormulaDialog
   */
  public FormulaDialog(java.awt.Frame parent, boolean modal, Backend backend) {
    super(parent, modal);
    initComponents();
    elements.setModel(model);
    model.clear();
    for(int a=0;a<backend.formula.size();a++) {
      String str = backend.formula.get(a);
      if (str.length() == 0) continue;
      if (str.charAt(0) == '#') str = str.substring(1);
      int idx = str.indexOf(',');
      if (idx != -1) {
//        str = str.substring(0, idx);  //remove radix
      }
      model.addElement(str);
    }
    this.backend = backend;
    setPosition();
  }

  /**
   * 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();
        elements = new javax.swing.JList();
        close = new javax.swing.JButton();
        delete = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("View Formula");

        elements.setModel(new javax.swing.AbstractListModel() {
            String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
            public int getSize() { return strings.length; }
            public Object getElementAt(int i) { return strings[i]; }
        });
        elements.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        jScrollPane1.setViewportView(elements);

        close.setText("Close");
        close.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                closeActionPerformed(evt);
            }
        });

        delete.setText("Delete");
        delete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                deleteActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jScrollPane1)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(delete)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 265, Short.MAX_VALUE)
                        .addComponent(close)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 240, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(close)
                    .addComponent(delete))
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

  private void deleteActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_deleteActionPerformed
    int idx = elements.getSelectedIndex();
    if (idx == -1) return;
    DefaultListModel model = (DefaultListModel)elements.getModel();
    model.removeElementAt(idx);
    backend.formula.remove(idx);
    backend.fidx--;
    if (backend.fidx == -1) {
      backend.formula.add("");
      backend.fidx = 0;
    }
//    backend.display.setDisplay("");
  }//GEN-LAST:event_deleteActionPerformed

  private void closeActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_closeActionPerformed
    dispose();
  }//GEN-LAST:event_closeActionPerformed

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton close;
    private javax.swing.JButton delete;
    private javax.swing.JList elements;
    private javax.swing.JScrollPane jScrollPane1;
    // End of variables declaration//GEN-END:variables

  private Backend backend;
  private DefaultListModel model = new DefaultListModel();

  private void setPosition() {
    Rectangle s = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
    Dimension d = getSize();
    setLocation(s.width/2 - d.width/2, s.height/2 - (d.height/2));
  }
}