InventoryProject

//Inventory5
/**
 * Write a description of class BorderLayoutManager here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */

import javax.swing.border.*;
import java.awt.Font;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.*;
import java.io.*;


public class Inventory5 extends JFrame
{
    private ArrayList<ArrayList<ArrayList<Thing>>> item = new ArrayList<ArrayList<ArrayList<Thing>>>();
    private ArrayList<String> categories = new ArrayList<>();
    private ArrayList<ArrayList<String>> subCategories = new ArrayList<ArrayList<String>>();
    private JList<String> categoryList, subcategoryList, itemList;
    private DefaultListModel<String> categoryModel, subcategoryModel;
    private DefaultListModel<String> itemModel;
    private MouseHandler mh;
    private JLabel image;
    private int categoryP = -1;
    private int subP = -1;
    private int itemP = -1;

    private JPanel contents; // contents pane
    //Region panels
    private JPanel panelCenter;
    private JPanel panelEast;
    private JPanel panelSouth;
    private JPanel panelWest;
    private JPanel panelSearch,panelWestSearch, panelEastSearch;
    // Borders:
    private Border borderContents = BorderFactory.createEmptyBorder(10,10,10,10);
    private Border borderRegion = BorderFactory.createLineBorder(Color.GRAY,2);
    private Border subBorderRegion = BorderFactory.createEmptyBorder(0,0,0,0);
    //Colors:
    private Color colorContents = Color.WHITE;
    private JButton checkOutButton,checkInButton;
    private JLabel locationLabel, quantityLabel;
    private JTextField enterTextField;
    //Fonts:
    private Font fontLabels = new Font(Font.DIALOG, Font.BOLD,16);
    private Font smallFontLabels = new Font(Font.DIALOG,Font.BOLD,12);
    private Boolean itemHighlighted = false;
    public Inventory5 ()throws FileNotFoundException {
        super("Inventory");
        setFonts();

        File f = new File("C:\\Users\\danie\\Documents\\inventory.txt");
        Scanner s = new Scanner(f);
        readContents(s, item, subCategories, categories);

        mh = new MouseHandler();

        categoryModel = new DefaultListModel<>();
        for (String str : categories) {
            categoryModel.addElement(str);
        }
        categoryList = new JList<>(categoryModel);
        categoryList.setBackground(Color.lightGray);


        subcategoryModel = new DefaultListModel<>();
        subcategoryList = new JList<>(subcategoryModel);
        subcategoryList.setBackground(Color.lightGray);


        itemModel = new DefaultListModel<>();
        itemList = new JList<String>(itemModel);
        itemList.setBackground(Color.lightGray);


        categoryList.addMouseListener(mh);
        subcategoryList.addMouseListener(mh);
        itemList.addMouseListener(mh);

        contents = new JPanel();
        contents.setLayout(new BorderLayout());
        contents.setBorder(borderContents);
        contents.setBackground(colorContents);
        setContentPane(contents);

        panelCenter = new JPanel();
        panelCenter.setPreferredSize(new Dimension(125,300));
        panelCenter.setBorder(borderRegion);
        panelCenter.setBackground(Color.lightGray);
        subcategoryList.setAlignmentX(LEFT_ALIGNMENT);
        panelCenter.add(new JLabel("Sub-Categories"));
        panelCenter.add(subcategoryList);
        contents.add(panelCenter, BorderLayout.CENTER);

        panelEast = new JPanel();
        panelEast.setBorder(borderRegion);
        panelEast.setPreferredSize(new Dimension(100,300));
        panelEast.setBackground(Color.lightGray);
        panelEast.add(new JLabel("Categories"));
        panelEast.add(itemList);
        contents.add(panelEast, BorderLayout.EAST);

        panelWest = new JPanel();
        panelWest.setBorder(borderRegion);
        panelWest.setPreferredSize(new Dimension(100,300));
        panelWest.setBackground(Color.lightGray);
        panelWest.add(new JLabel("Items"));
        panelWest.add(categoryList);
        contents.add(panelWest, BorderLayout.WEST);

        panelSouth = new JPanel();
        panelSouth.setBorder(borderRegion);
        panelSouth.setPreferredSize(new Dimension(300,250));
        panelSouth.setBackground(Color.lightGray);
        contents.add(panelSouth, BorderLayout.SOUTH);

        ///*
        locationLabel = new JLabel("Location: Not Available");
        quantityLabel = new JLabel("Quantity: Not Found");
        locationLabel.setFont(smallFontLabels);
        quantityLabel.setFont(smallFontLabels);
        enterTextField = new JTextField(8);


        checkInButton = new JButton("Check-in");
        checkInButton.setFont(smallFontLabels);
        checkOutButton = new JButton("Check-out");
        checkOutButton.setFont(smallFontLabels);


        panelWestSearch = new JPanel();
        panelWestSearch.setBorder(subBorderRegion);
        panelWestSearch.setPreferredSize(new Dimension(150,100));
        panelWestSearch.setBackground(Color.lightGray);
        panelWestSearch.add(enterTextField);
        panelWestSearch.add(checkInButton);
        panelWestSearch.add(checkOutButton);

        panelEastSearch = new JPanel();
        panelEastSearch.setBorder(subBorderRegion);
        panelEastSearch.setPreferredSize(new Dimension(160,100));
        panelEastSearch.add(locationLabel);
        panelEastSearch.add(new Box(0));
        panelEastSearch.add(quantityLabel);
        panelEastSearch.setBackground(Color.lightGray);


        panelSearch = new JPanel();
        panelSearch.setPreferredSize(new Dimension(300,100));
        panelSearch.setBackground(Color.lightGray);
        panelSearch.add(panelWestSearch,BorderLayout.WEST);
        panelSearch.add(panelEastSearch, BorderLayout.EAST);
        panelSearch.setBorder(borderRegion);
        contents.add(panelSearch,BorderLayout.NORTH);

        ButtonListener bl = new ButtonListener();
        checkInButton.addActionListener(bl);
        checkOutButton.addActionListener(bl);
        //*/

        setResizable(false);
        pack();
        setVisible (true);
    }
    private void setFonts()
    {
        UIManager.put("Label.font", fontLabels);
    }
    private class ButtonListener implements ActionListener{
        public void actionPerformed(ActionEvent e){
            int quantity = 0;
            if(itemHighlighted) {
                Scanner s = new Scanner(enterTextField.getText());
                if( s.hasNextInt()) {
                    int number = s.nextInt();
                    quantity = item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(itemList.getSelectedIndex()).getInventory();
                    if (e.getSource() == checkInButton) {
                        item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(itemList.getSelectedIndex()).changeInventory(number);
                        quantityLabel.setText("Quantity: " + (quantity + number));
                    }
                    if (e.getSource() == checkOutButton && quantity > 0) {
                        item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(itemList.getSelectedIndex()).changeInventory(-number);
                        quantityLabel.setText("Quantity: " + (quantity - number));
                    }
                }
                else{
                    System.out.println("error");
                }
            }
        }

}
    public static void main (String [] args) throws FileNotFoundException{
        Inventory5 gui = new Inventory5();
        gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    private class MouseHandler  extends MouseAdapter{
        public void mouseClicked(MouseEvent me) {

            if (categoryP != categoryList.getSelectedIndex()) {
                itemHighlighted = false;
                if(itemP != -1){
                    contents.remove(image);
                    setVisible(true);
                }
                subcategoryModel.removeAllElements();
                itemModel.removeAllElements();

                for (int i = 0; i < subCategories.get(categoryList.getSelectedIndex()).size(); i++) {
                    subcategoryModel.addElement(subCategories.get(categoryList.getSelectedIndex()).get(i));
                }

                categoryP = categoryList.getSelectedIndex();
            }

            else if (subP != subcategoryList.getSelectedIndex()) {
                itemHighlighted =false;
                System.out.println(itemP);
                if(itemP != -1){
                    panelSouth.remove(image);
                    setVisible(true);
                }
                itemModel.removeAllElements();

                for (int i = 0; i < item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).size(); i++) {
                    itemModel.addElement(item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(i).getName());
                }

                subP = subcategoryList.getSelectedIndex();
            } else if (itemP != itemList.getSelectedIndex()) {
                if(itemP != -1)panelSouth.remove(image);
                itemHighlighted = true;
                quantityLabel.setText("Quantity " +item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(itemList.getSelectedIndex()).getInventory());
                String name = item.get(categoryList.getSelectedIndex()).get(subcategoryList.getSelectedIndex()).get(itemList.getSelectedIndex()).getName();
                System.out.println(("C:\\Users\\danie\\Documents\\inventoryPhotos\\" + name  + ".PNG"));
                image = new JLabel(new ImageIcon("C:\\Users\\danie\\Documents\\inventoryPhotos\\" + name + ".PNG"));
                Dimension test = new Dimension(200,200);
                image.setMinimumSize(test);
                image.setPreferredSize(test);
                image.setMaximumSize(test);
                //setSpecificSize
                panelSouth.add(image);
                setVisible(true);
                itemP = itemList.getSelectedIndex();
            }

        }
    }

    private static void readContents(Scanner s, ArrayList<ArrayList<ArrayList<Thing>>> list, ArrayList<ArrayList<String>> subCategories, ArrayList<String> categories) {
        while (s.hasNextLine()) {
            String line = s.nextLine();
            Scanner l = new Scanner(line);
            String type = "";
            if(l.hasNext()) type =l.next();
            if (type.equals("-")) {
                categories.add(l.next());
                list.add(new ArrayList<ArrayList<Thing>>());
                subCategories.add(new ArrayList<String>());
            } else if (type.equals("+")) {
                subCategories.get(subCategories.size() - 1).add(l.next());
                list.get(list.size() - 1).add(new ArrayList<Thing>());
            } else if (type.equals("|")) {
                int index = list.get(list.size() - 1).size() - 1;
                String word = l.next();
                int number = 0;
                String location = "Not Found";
                if(l.hasNextInt()){
                    number = l.nextInt();
                }
                if(l.hasNext()){
                    location = l.next();
                }
                list.get(list.size() - 1).get(index).add(new Thing(word, location, number));
            }
        }
    }
}
--------------------------
//thing class
public class Thing
{
    private String name;
    private String location;
    private int inventory;

    public Thing(String n, String l, int i)
    {
        name = n;
        location = l;
        inventory = i;
    }

    public String getName()
    {
        return name;
    }

    public String getLocation()
    {
        return location;
    }

    public int getInventory()
    {
        return inventory;
    }

    public void changeName(String n)
    {
        name = n;
    }

    public void changeLocation(String l)
    {
        location = l;
    }

    public void changeInventory(int i)
    {
        inventory = inventory + i;
    }
}