import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Date;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSpinner;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.RowFilter;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableRowSorter;

public class LogTab extends JPanel {
    private static final String ALL_CATEGORIES_STR = "Wszystkie";
    private JFrame mainFrame;
    private JTable table;
    private String selectedCategory = "";

    public LogTab(final JFrame mf) {
    mainFrame = mf;
    selectedCategory = ALL_CATEGORIES_STR;
    GridBagLayout layout = new GridBagLayout();
    setLayout(layout);

    GridBagConstraints c = new GridBagConstraints();

    c.gridx = 0;
    c.gridy = 0;
    c.weightx = 1;
    c.weighty = 0;
    c.gridwidth = 1;
    c.fill = GridBagConstraints.BOTH;
    add(new JLabel("Kategoria"), c);
    LogCategory[] categories = LogCategory.values();
    String[] categoriesStrings = new String[categories.length + 1];
    categoriesStrings[0] = ALL_CATEGORIES_STR;
    for (int i = 0; i < categories.length; i++) {
        categoriesStrings[i + 1] = categories[i].getName();
    }

    JComboBox categoryList = new JComboBox(categoriesStrings);
    categoryList.addActionListener(new CategoryChangeListener());
    c.gridx = 1;
    c.gridy = 0;
    c.gridwidth = 5;
    add(categoryList, c);

    table = new JTable();
    TableModel tableModel = new LogTableModel();
    tableModel.setList(((MainFrame) mainFrame).getLog());
    table.setModel(tableModel);

    RowFilter<Object, Object> filter = new LogTableRowFilter();
    TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
        tableModel);
    sorter.setRowFilter(filter);
    table.setRowSorter(sorter);

    JScrollPane scrollPane = new JScrollPane(table);
    table.setFillsViewportHeight(true);
    c.gridx = 0;
    c.gridy = 1;
    c.weightx = 100;
    c.weighty = 100;
    c.gridwidth = 6;

    add(scrollPane, c);
    }

    public JTable getTable() {
    return table;
    }

    private class LogTableRowFilter extends RowFilter<Object, Object> {
    public boolean include(Entry entry) {
        String category = (String) entry
            .getValue(LogTableModel.CATEGORY_COLUMN_IDX);
        return (selectedCategory == ALL_CATEGORIES_STR) ? true
            : (category == selectedCategory);
        }
    }

    private class CategoryChangeListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        JComboBox cb = (JComboBox) e.getSource();
        selectedCategory = (String) cb.getSelectedItem();
        ((AbstractTableModel) getTable().getModel()).fireTableDataChanged();
        }
    }
}