data-miner-manager/src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsPanel.java

/**
 * 
 */
package org.gcube.portlets.user.dataminermanager.client.computations;

import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
import org.gcube.portlets.user.dataminermanager.client.events.ComputationDataEvent;
import org.gcube.portlets.user.dataminermanager.client.events.DataMinerWorkAreaEvent;
import org.gcube.portlets.user.dataminermanager.client.events.RefreshDataMinerWorkAreaEvent;

import com.allen_sauer.gwt.log.client.Log;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.widget.core.client.FramedPanel;
import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer;
import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.BorderLayoutData;
import com.sencha.gxt.widget.core.client.container.MarginData;

/**
 * 
 * @author Giancarlo Panichi email: <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 *
 */
public class ComputationsPanel extends FramedPanel {
	private ComputationsExecutedPanel computationsExecutedPanel;
	private ComputationsViewerPanel computationsViewerPanel;

	public ComputationsPanel() {
		super();
		init();
		create();
		bind();
	}

	private void init() {
		setBodyStyle("backgroundColor:white;");
		setBorders(false);
		setBodyBorder(false);
		setHeadingText("Computations");
		setHeaderVisible(true);

	}

	private void bind() {
		EventBusProvider.INSTANCE.addHandler(ComputationDataEvent.getType(),
				new ComputationDataEvent.ComputationDataEventHandler() {

					@Override
					public void onComputationData(ComputationDataEvent event) {
						Log.debug("Catch ComputationDataEvent: " + event);
						expandsComputationsViewer();

					}

				});

		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {

					@Override
					public void onChange(DataMinerWorkAreaEvent event) {
						manageDataMinerWorkAreaEvents(event);

					}

				});

		EventBusProvider.INSTANCE
				.addHandler(
						RefreshDataMinerWorkAreaEvent.TYPE,
						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {

							@Override
							public void onRefresh(
									RefreshDataMinerWorkAreaEvent event) {
								Log.debug("Catch RefreshDataMinerWorkAreaEvent: "
										+ event);
								manageRefreshDataMinerWorkAreaEvents(event);
							}

						});

	}

	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
		Log.debug("ComputationsPanel recieved DataMinerWorkAreaEvent: " + event);
		if (event == null) {
			Log.error("DataMinerWorkAreaEvent null");
			return;
		}
		switch (event.getDataMinerWorkAreaRegionType()) {
		case Computations:
			collapseComputationsViewer();
			break;
		case DataSets:
			break;
		default:
			break;

		}

	}

	private void manageRefreshDataMinerWorkAreaEvents(
			RefreshDataMinerWorkAreaEvent event) {
		Log.debug("ComputationsPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
		if (event == null) {
			Log.error("RefreshDataMinerWorkAreaEvent null");
			return;
		}
		switch (event.getDataMinerWorkAreaElementType()) {
		case Computations:
			collapseComputationsViewer();
			break;
		case InputDataSets:
			break;
		case OutputDataSets:
			break;
		default:
			break;
		}

	}

	private void collapseComputationsViewer() {
		if (computationsViewerPanel.isExpanded()) {
			computationsViewerPanel.collapse();
		}
		forceLayout();
	}

	private void expandsComputationsViewer() {
		if (computationsViewerPanel.isCollapsed()) {
			computationsViewerPanel.expand();
		}
		forceLayout();
	}

	private void create() {
		computationsExecutedPanel = new ComputationsExecutedPanel();
		computationsViewerPanel = new ComputationsViewerPanel();

		MarginData centerData = new MarginData(0);

		BorderLayoutData southData = new BorderLayoutData(0.5);
		southData.setMargins(new Margins(0));
		southData.setCollapsible(true);
		southData.setSplit(true);
		southData.setFloatable(false);
		southData.setCollapseMini(false);
		southData.setMargins(new Margins(5, 0, 0, 0));
		southData.setCollapseHidden(false);
		southData.setCollapsed(true);

		BorderLayoutContainer borderLayoutContainer = new BorderLayoutContainer();
		borderLayoutContainer.setCenterWidget(computationsExecutedPanel,
				centerData);
		borderLayoutContainer
				.setSouthWidget(computationsViewerPanel, southData);

		add(borderLayoutContainer, new MarginData(new Margins(0)));

		forceLayout();

	}

}