put.semantic.fcanew.ui.FilesListModel.java Source code

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Here is the source code for put.semantic.fcanew.ui.FilesListModel.java

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/*
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package put.semantic.fcanew.ui;

import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.prefs.Preferences;
import javax.swing.DefaultListModel;
import javax.swing.ListModel;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;
import org.apache.commons.lang.StringUtils;
import put.semantic.fcanew.preferences.PreferencesProvider;

/**
 *
 * @author smaug
 */
public class FilesListModel implements ListModel<File> {

    private final List<File> data = new ArrayList<>();
    private final List<ListDataListener> listeners = new ArrayList<>();

    private void savePreferences() {
        PreferencesProvider.getInstance().setFiles(data);
    }

    public FilesListModel() {
        data.addAll(PreferencesProvider.getInstance().getFiles());
        addListDataListener(new ListDataListener() {

            @Override
            public void intervalAdded(ListDataEvent e) {
                savePreferences();
            }

            @Override
            public void intervalRemoved(ListDataEvent e) {
                savePreferences();
            }

            @Override
            public void contentsChanged(ListDataEvent e) {
                savePreferences();
            }
        });
    }

    public void add(File f) {
        if (f == null) {
            return;
        }
        data.add(f);
        int i = data.size() - 1;
        ListDataEvent e = new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, i, i);
        for (ListDataListener l : listeners) {
            l.intervalAdded(e);
        }
    }

    public void add(File[] files) {
        if (files == null || files.length == 0) {
            return;
        }
        int begin = data.size();
        data.addAll(Arrays.asList(files));
        int end = data.size() - 1;
        ListDataEvent e = new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, begin, end);
        for (ListDataListener l : listeners) {
            l.intervalAdded(e);
        }
    }

    public void remove(int index) {
        data.remove(index);
        ListDataEvent e = new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index);
        for (ListDataListener l : listeners) {
            l.intervalAdded(e);
        }
    }

    public void clear() {
        if (!data.isEmpty()) {
            ListDataEvent e = new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, 0, data.size() - 1);
            data.clear();
            for (ListDataListener l : listeners) {
                l.intervalRemoved(e);
            }
        }
    }

    @Override
    public int getSize() {
        return data.size();
    }

    @Override
    public File getElementAt(int index) {
        return data.get(index);
    }

    public List<File> getFiles() {
        return Collections.unmodifiableList(data);
    }

    @Override
    public void addListDataListener(ListDataListener l) {
        if (l != null) {
            listeners.add(l);
        }
    }

    @Override
    public void removeListDataListener(ListDataListener l) {
        listeners.remove(l);
    }

}