package learn;

/**
 *
 * @author Terry Weiss
 */
public class CelsiusConverterGUI extends javax.swing.JFrame {

    /**
     * Creates new form CelsiusConverterGUI
     */
    public CelsiusConverterGUI() {
        initComponents();
    }

    /**
     * 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">
    private void initComponents() {

        celsiusLabel = new javax.swing.JLabel();
        fahrenheitLabel = new javax.swing.JLabel();
        convertButton = new javax.swing.JButton();
        tempTextField = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Celsius Converter");

        celsiusLabel.setText("Celsius");

        fahrenheitLabel.setText("Fahrenheit");

        convertButton.setText("Convert");
        convertButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                convertButtonActionPerformed(evt);
            }
        });
        convertButton.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                convertButtonKeyPressed(evt);
            }
        });

        tempTextField.setText("Temperature");
        tempTextField.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                tempTextFieldMouseClicked(evt);
            }
        });
        tempTextField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                tempTextFieldActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(tempTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(celsiusLabel))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(convertButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(fahrenheitLabel)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {convertButton, tempTextField});

        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(tempTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(celsiusLabel))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(convertButton)
                    .addComponent(fahrenheitLabel))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void tempTextFieldActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
    }

    private void convertButtonActionPerformed(java.awt.event.ActionEvent evt) {
        // Parse degrees Celsius asa double and convert to Fahrenheit.
        try {
            int tempFahr = (int)((Double.parseDouble(tempTextField.getText()))
                                * 1.8 + 32);
            fahrenheitLabel.setText(tempFahr + " Fahrenheit");
        }
        catch (NumberFormatException e) {
            System.out.println("**ERROR**: Entered temperature isn't valid.");
        }

        pack();
    }

    private void tempTextFieldMouseClicked(java.awt.event.MouseEvent evt) {
        tempTextField.setText("");
    }

    private void convertButtonKeyPressed(java.awt.event.KeyEvent evt) {
        // TODO add your handling code here:
    }

    /**
     * @param args Command-line arguments aren't currently supported
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info
                    : javax.swing.UIManager.getInstalledLookAndFeels())
            {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
                    | javax.swing.UnsupportedLookAndFeelException ex)
        {
            java.util.logging.Logger.getLogger(CelsiusConverterGUI.class.getName())
                                        .log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(() -> {
            new CelsiusConverterGUI().setVisible(true);
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JLabel celsiusLabel;
    private javax.swing.JButton convertButton;
    private javax.swing.JLabel fahrenheitLabel;
    private javax.swing.JTextField tempTextField;
    // End of variables declaration
}