//Interface.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.swing.*;
import java.awt.Cursor.*;
import javax.swing.text.*;
import java.text.*;
import java.util.*;
import javax.swing.undo.*;
import javax.swing.event.*;
import java.net.*;
import java.awt.print.*;
import java.awt.geom.*;
import java.util.Vector;
import javax.swing.JToolBar;
import javax.swing.JPanel;
import javax.swing.filechooser.*;
import java.awt.geom.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.print.PrinterJob;
import java.awt.event.ActionListener;
import javax.swing.filechooser.*;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JButton;
import javax.swing.table.TableColumn;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeSelectionModel;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.ToolTipManager;
import javax.swing.ImageIcon;
import javax.swing.Icon;
import java.net.URL;
import java.io.IOException;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Component;
import java.awt.Polygon;
//import file/OPEN.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.DecimalFormat;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;

public class Interface extends JFrame {

    // global variables:
    //Scheduling_Session SS = new Scheduling_Session();
    //Paging_Session PS = new Paging_Session();
    Scheduling_Session SS;
    Paging_Session PS;
    Scheduling_Algorithm S_Algorithm;
    Paging_Algorithm P_Algorithm;
    Schedule schedule;
    boolean Schanged = false;
    boolean Pchanged = false;
    int graphWidth = 0;
    private final Color colorValues[] = {Color.black, Color.blue, Color.red, Color.green};
    private JRadioButtonMenuItem colorItems[], fonts[];
    private JCheckBoxMenuItem styleItems[];
    private JLabel displayLabel;
    //private JTextField outputG2;
    PageFaultPanel PageFault;
    private JTextArea outputGraphArea;
    private ButtonGroup fontGroup, colorGroup;
    private JTabbedPane tabbedPane;
    private int style;
    private JMenuItem Session_a[];
    private JPanel panel1, panel2;
    private FlowLayout layout;
    private JDesktopPane theDesktop;
    private JFileChooser fc;
    private JButton OpenItem;
    private JScrollPane OutputPane;
    private JInternalFrame ResultFrame;
    private SchedulingOutput outputGraph;
    private SchedulingOutput DetailedOutputGraph;
    private PagingOutput PO;
    private JTable outputTable, outputTableP;
    private JTable input, input2;
    private JInternalFrame frame, frame2;
    private JTextField PenaltyAverage = new JTextField(), CPU = new JTextField();
    //private CalculationPanel calculations;
    private JTextField quantum = new JTextField();
    private AveragePanel Average;
    private JButton Enlarge;
    private JButton Steps, StepsB;
    private JPanel PriorityPanel;
    private JSplitPane inputSplitPane;
    private JTextField mField, fsField, fField, CBField;
    private JTextField mField2, fsField2, fField2;
    private JButton Cal;
    private JLabel QLabel, fLabel, fsLabel, mLabel, CBLabel;
    private JLabel fLabel2, fsLabel2, mLabel2, inputTableTextP;
    private JLabel inputTableTextP3, outputTableTextP;
    private JLabel outputGraphLabel2, outputGraphText2;
    private JCheckBox showCache;
    private JRadioButton frameNo, memSize, frameNo2, memSize2;
    private ButtonGroup radioGroup1, radioGroup2;
    private ObjectOutputStream output;
    private ObjectInputStream inputS;
    JButton PrintButton = new JButton("Print", new ImageIcon("images/printer2.png"));
    JRadioButton Preemptive = new JRadioButton("Pre-emptive", false), nonPreemptive = new JRadioButton("Non Pre-emptive", true);

    private FileInputStream fileInput;
    private File fileName;
    int Length = 35;
    JComboBox algorithmsComboBox;
    JComboBox PalgorithmsComboBox;
    String SAlgorithms[] = {"Choose Algorithm", "First Come First Served (FCFS)",
        "Round Robin (RR)", "Shortest Process Next (SPN)", "Shortest Remaining Time (SRT)", "Highest Response Ratio Next (HRRN)",
        "Priority scheduling", "Multilevel Feedback Queue Scheduling"};

    ;
    //if choice=1 show number of frame field else show memory size& frame size field
    private int choice = 1;
    //if b=true show cache memory
    private boolean b = false;
    boolean pre = false;
    // set up GUI

    public Interface() {
        super("CPU Scheduler");

        // Set the OS Magnifier slogan
        ImageIcon image = new ImageIcon("images/1.png");
        this.setIconImage(image.getImage());

        theDesktop = new JDesktopPane();
        getContentPane().add(theDesktop);

        JToolBar toolBar = new JToolBar();
        toolBar.setFloatable(false);
        addButtons(toolBar);
        toolBar.setVisible(true);

        // add toolBar to container
        //setSize(270,80);
        toolBar.setSize(270, 80);
        getContentPane().add(toolBar);

        setVisible(true);
        getContentPane().setLayout(new BorderLayout());
        // set the bounds of the toolbar
        toolBar.setBounds(5, 0, 900, 50);

        // create JTabbedPane
        tabbedPane = new JTabbedPane(JTabbedPane.TOP, JTabbedPane.SCROLL_TAB_LAYOUT);

        // set up pane11 and add it to JTabbedPane
        panel1 = new JPanel();
        tabbedPane.addTab("      Scheduling    ", null, panel1, "Scheduling Session");
        //pressing Alt-1 makes the   Scheduling tab appear and the index of the tab =0
        tabbedPane.setMnemonicAt(0, KeyEvent.VK_1);

        // set up pane11 and add it to JTabbedPane
        panel2 = new JPanel();
        tabbedPane.addTab("     Paging     ", null, panel2, "Paging Session"); // this is the tab content that I DO NOT want to display

        // to create imageicon in the top of tap
        ImageIcon sicon = new ImageIcon("images/s.png");
        ImageIcon picon = new ImageIcon("images/p.png");

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}