/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JFrame.java to edit this template
 */
package swing.kalkulator;

import java.awt.Color;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

/**
 *
 * @author patryk
 */
public class OknoKalkulatora extends javax.swing.JFrame {

    /**
     * Creates new form OknoKalkulatora
     */
    public OknoKalkulatora() {
        initComponents();
        mojeDodatki();
    }
    
    private void mojeDodatki() {
        DocumentListener dl = new DocumentListener() {
            public void insertUpdate(DocumentEvent evt) {
                przelicz();
            }

            public void removeUpdate(DocumentEvent evt) {
                przelicz();
            }

            public void changedUpdate(DocumentEvent evt) {
                przelicz();
            }
        };
        
        jTextField1.getDocument().addDocumentListener(dl);
        jTextField2.getDocument().addDocumentListener(dl);
    }

    /**
     * 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() {

        jTextField1 = new javax.swing.JTextField();
        jTextField2 = new javax.swing.JTextField();
        jComboBox1 = new javax.swing.JComboBox<>();
        jButton1 = new javax.swing.JButton();
        jTextField3 = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Kalkulator");
        setResizable(false);

        jTextField1.setFont(new java.awt.Font("Dialog", 1, 36)); // NOI18N
        jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

        jTextField2.setFont(new java.awt.Font("Dialog", 1, 36)); // NOI18N
        jTextField2.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

        jComboBox1.setFont(new java.awt.Font("Dialog", 1, 36)); // NOI18N
        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "+", "-", "*", "/" }));
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });

        jButton1.setFont(new java.awt.Font("Dialog", 1, 36)); // NOI18N
        jButton1.setText("Oblicz");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jTextField3.setEditable(false);
        jTextField3.setFont(new java.awt.Font("Dialog", 1, 36)); // NOI18N
        jTextField3.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
        jTextField3.setText("0");

        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(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 415, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(169, 169, 169)
                        .addComponent(jTextField3))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 414, Short.MAX_VALUE)
                        .addGap(18, 18, 18)
                        .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 133, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 415, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap())
        );

        layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jTextField1, jTextField2});

        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(20, Short.MAX_VALUE))
        );

        layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {jButton1, jComboBox1, jTextField1, jTextField2, jTextField3});

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

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        przelicz();
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jComboBox1ActionPerformed
        przelicz();
    }//GEN-LAST:event_jComboBox1ActionPerformed

    private void przelicz() {
        if(jTextField1.getText().isEmpty() || jTextField2.getText().isEmpty()) {
            jTextField3.setText("");
        } else try {
            long liczba1 = Long.parseLong(jTextField1.getText());
            long liczba2 = Long.parseLong(jTextField2.getText());
            // String operacja = jComboBox1.getItemAt(jComboBox1.getSelectedIndex());
            String operacja = (String)jComboBox1.getSelectedItem();
            long wynik = LogikaKalkulatora.oblicz(liczba1, liczba2, operacja);
            jTextField3.setText(String.valueOf(wynik));
            jTextField3.setForeground(Color.BLUE);
        } catch(Exception e) {
            jTextField3.setText("BŁĄD");
            jTextField3.setForeground(Color.RED);
        }
    }

    /**
     * @param args the command line arguments
     */
    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 ex) {
            java.util.logging.Logger.getLogger(OknoKalkulatora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(OknoKalkulatora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(OknoKalkulatora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(OknoKalkulatora.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new OknoKalkulatora().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JComboBox<String> jComboBox1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    // End of variables declaration//GEN-END:variables
}
