WidgetsExampleView.java

/*******************************************************************************
 * Copyright (c) 2010 Oak Ridge National Laboratory.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 ******************************************************************************/
package org.eclipse.nebula.visualization.xygraph.exampleview;

import org.eclipse.draw2d.LightweightSystem;
import org.eclipse.nebula.visualization.widgets.datadefinition.IManualValueChangeListener;
import org.eclipse.nebula.visualization.widgets.figures.GaugeFigure;
import org.eclipse.nebula.visualization.widgets.figures.KnobFigure;
import org.eclipse.nebula.visualization.widgets.figures.TankFigure;
import org.eclipse.nebula.visualization.widgets.figures.ThermometerFigure;
import org.eclipse.nebula.visualization.xygraph.dataprovider.CircularBufferDataProvider;
import org.eclipse.nebula.visualization.xygraph.dataprovider.CircularBufferDataProvider.UpdateMode;
import org.eclipse.nebula.visualization.xygraph.figures.IXYGraph;
import org.eclipse.nebula.visualization.xygraph.figures.Trace;
import org.eclipse.nebula.visualization.xygraph.figures.XYGraph;
import org.eclipse.nebula.visualization.xygraph.figures.Trace.PointStyle;
import org.eclipse.nebula.visualization.xygraph.util.XYGraphMediaFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.ViewPart;

/**
 * @author Xihui Chen
 *
 */
public class WidgetsExampleView extends ViewPart {

	public WidgetsExampleView() {
	}

	@Override
	public void createPartControl(Composite parent) {
		GridLayout layout = new GridLayout();
		layout.numColumns = 4;
		GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
		parent.setLayout(layout);
		// create canvases to hold the widgets.
		Canvas knobCanvas = new Canvas(parent, SWT.BORDER);
		knobCanvas.setLayoutData(gd);
		Canvas gaugeCanvas = new Canvas(parent, SWT.BORDER);
		gaugeCanvas.setLayoutData(gd);
		Canvas thermoCanvas = new Canvas(parent, SWT.BORDER);
		thermoCanvas.setLayoutData(gd);
		Canvas tankCanvas = new Canvas(parent, SWT.BORDER);
		tankCanvas.setLayoutData(gd);
		Canvas xyGraphCanvas = new Canvas(parent, SWT.BORDER);
		gd = new GridData(SWT.FILL, SWT.FILL, true, true, 4, 3);
		xyGraphCanvas.setLayoutData(gd);

		// use LightweightSystem to create the bridge between SWT and draw2D
		LightweightSystem lws = new LightweightSystem(knobCanvas);
		// Create widgets
		final KnobFigure knobFigure = new KnobFigure();
		lws.setContents(knobFigure);

		lws = new LightweightSystem(gaugeCanvas);
		final GaugeFigure gauge = new GaugeFigure();
		gauge.setBackgroundColor(XYGraphMediaFactory.getInstance().getColor(0, 0, 0));
		gauge.setForegroundColor(XYGraphMediaFactory.getInstance().getColor(255, 255, 255));
		lws.setContents(gauge);

		lws = new LightweightSystem(thermoCanvas);
		final ThermometerFigure thermo = new ThermometerFigure();
		lws.setContents(thermo);

		lws = new LightweightSystem(tankCanvas);
		final TankFigure tank = new TankFigure();
		lws.setContents(tank);

		// use LightweightSystem to create the bridge between SWT and draw2D
		lws = new LightweightSystem(xyGraphCanvas);

		// create a new XY Graph.
		IXYGraph xyGraph = new XYGraph();
		xyGraph.getPrimaryXAxis().setAutoScale(true);
		// set it as the content of LightwightSystem
		lws.setContents(xyGraph);

		// create a trace data provider, which will provide the data to the
		// trace.
		// Set chronological to true so it can sort the data chronologically.
		final CircularBufferDataProvider traceDataProvider = new CircularBufferDataProvider(true);
		traceDataProvider.setBufferSize(100);
		// Update the trace whenever any X or Y data changed. So only set Y data
		// can update the trace.
		traceDataProvider.setUpdateMode(UpdateMode.X_OR_Y);

		// create the trace
		Trace trace = new Trace("Trace1-XY Plot", xyGraph.getPrimaryXAxis(), xyGraph.getPrimaryYAxis(), traceDataProvider);

		// set trace property
		trace.setPointStyle(PointStyle.POINT);

		// add the trace to xyGraph
		xyGraph.addTrace(trace);

		// Add listener
		knobFigure.addManualValueChangeListener(new IManualValueChangeListener() {
			@Override
			public void manualValueChanged(double newValue) {
				gauge.setValue(newValue);
				thermo.setValue(newValue);
				tank.setValue(newValue);
				traceDataProvider.setCurrentYData(newValue);
			}
		});

	}

	@Override
	public void setFocus() {

	}

}