TGBrowserCollectionCombo.java

package org.herac.tuxguitar.gui.tools.browser.dialog;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.herac.tuxguitar.gui.TuxGuitar;
import org.herac.tuxguitar.gui.tools.browser.TGBrowserCollection;

public class TGBrowserCollectionCombo {

  private List<TGBrowserCollection> collections;
  private Combo combo;

  public TGBrowserCollectionCombo(Composite parent, int style) {
    this.combo = new Combo(parent, style);
    this.collections = new ArrayList<TGBrowserCollection>();
    this.addFirstElement();
  }

  public void add(TGBrowserCollection collection) {
    this.combo.add(collection.getData().getTitle());
    this.collections.add(collection);
  }

  private void addFirstElement() {
    this.combo.add(TuxGuitar.getProperty("browser.collection.select"));
    this.combo.select(0);
  }

  public void addSelectionListener(SelectionListener listener) {
    this.combo.addSelectionListener(listener);
  }

  public TGBrowserCollection getSelection() {
    int index = (this.combo.getSelectionIndex() - 1);
    if (index >= 0 && index < this.collections.size()) {
      return ((TGBrowserCollection) this.collections.get(index));
    }
    return null;
  }

  public boolean isEmpty() {
    return this.collections.isEmpty();
  }

  public void removeAll() {
    this.combo.removeAll();
    this.collections.clear();
    this.addFirstElement();
  }

  public void select(int index) {
    this.combo.select((index + 1));
  }

  public void setEnabled(boolean enabled) {
    this.combo.setEnabled(enabled);
  }

  public void setLayoutData(Object layoutData) {
    this.combo.setLayoutData(layoutData);
  }
}