ListBoxPanel.java example

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geogebra-master
package org.geogebra.web.web.gui.properties;

import org.geogebra.common.gui.dialog.options.model.IComboListener;
import org.geogebra.common.gui.dialog.options.model.MultipleOptionsModel;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.main.Localization;

import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;

public class ListBoxPanel extends OptionPanel implements IComboListener {

	private Label label;
	private ListBox listBox;
	private String title;
	private Localization loc;
	
	public ListBoxPanel(Localization loc, final String title) {
		this.loc = loc;
		this.title = title;
		setLabel(new Label());
		listBox = new ListBox();
		FlowPanel mainWidget = new FlowPanel(); 
		mainWidget.setStyleName("listBoxPanel");

		mainWidget.add(getLabel());
		mainWidget.add(getListBox());
		
		getListBox().addChangeHandler(new ChangeHandler(){

			@Override
			public void onChange(ChangeEvent event) {
				onListBoxChange();
			}});
		setWidget(mainWidget);
	}

	MultipleOptionsModel getMultipleModel() {
		return (MultipleOptionsModel)getModel();
	}
	
	protected void onListBoxChange() {
		getMultipleModel().applyChanges(getListBox().getSelectedIndex());
        
	}
	@Override
    public void setLabels() {
		getLabel().setText(getTitle() + ":");

		int idx = getListBox().getSelectedIndex();
		getListBox().clear();
		getMultipleModel().fillModes(loc);
		getListBox().setSelectedIndex(idx);
	}

	@Override
	public void setSelectedIndex(int index) {
		getListBox().setSelectedIndex(index);
    }

	@Override
	public void addItem(String item) {
        getListBox().addItem(item);
    }

	public String getTitle() {
		String ret = loc.getPlain(title);
		if (ret.equals(title)) {
			// needed for eg Tooltip
			ret = loc.getMenu(title);
		}
		return ret;
    }
	
	public void setTitle(String title) {
        this.title = title;
        getLabel().setText(title);
    }
	
	public ListBox getListBox() {
        return listBox;
    }

	public Label getLabel() {
        return label;
    }

	public void setLabel(Label label) {
        this.label = label;
    }

	@Override
	public void setSelectedItem(String item) {
	    // TODO Auto-generated method stub
	    
    }

	@Override
	public void clearItems() {
		getListBox().clear();

	}

	public void addItem(GeoElement item) {
		// TODO Auto-generated method stub

	}
	
}