/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.renderer.shape;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Panel;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import junit.framework.TestCase;
import org.geotools.TestData;
import org.geotools.data.shapefile.indexed.IndexedShapefileDataStore;
import org.geotools.data.shapefile.indexed.IndexedShapefileDataStoreFactory;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.filter.IllegalFilterException;
import org.geotools.renderer.GTRenderer;
import org.geotools.renderer.RenderListener;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Fill;
import org.geotools.styling.LineSymbolizer;
import org.geotools.styling.PointSymbolizer;
import org.geotools.styling.PolygonSymbolizer;
import org.geotools.styling.Rule;
import org.geotools.styling.Stroke;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.StyleFactoryFinder;
import org.geotools.styling.Symbolizer;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.FilterFactory;
import com.vividsolutions.jts.geom.Envelope;
/**
* Utitility methods for unit tests
*
* @author jeichar
*
* @since 2.1.x
*
*
* @source $URL$
*/
public class TestUtilites {
public static final Logger LOGGER = org.geotools.util.logging.Logging.getLogger("org.geotools.renderer.shape");
static final FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory(null);
public static boolean INTERACTIVE = false;
public static IndexedShapefileDataStore getPolygons() throws IOException {
return TestUtilites.getDataStore("lakes.shp");
}
public static IndexedShapefileDataStore getDataStore(String filename)
throws IOException {
URL url = TestData.url(Rendering2DTest.class, filename);
IndexedShapefileDataStoreFactory factory = new IndexedShapefileDataStoreFactory();
return (IndexedShapefileDataStore) factory.createDataStore(url);
}
public static IndexedShapefileDataStore getLines() throws IOException {
return getDataStore("streams.shp");
}
public static IndexedShapefileDataStore getPoints() throws IOException {
URL url = TestData.url("shapes/pointtest.shp");
//IndexedShapefileDataStoreFactory factory = new IndexedShapefileDataStoreFactory();
//return (IndexedShapefileDataStore) factory.createDataStore(url);
return new IndexedShapefileDataStore(url);
}
public static Style createTestStyle(String polyName, String lineName)
throws IllegalFilterException {
return createTestStyle(polyName, lineName, null);
}
public static Style createTestStyle(String polyName, String lineName,
String pointName) throws IllegalFilterException {
if (polyName == null) {
polyName = "lakes";
}
if (lineName == null) {
lineName = "streams";
}
if (pointName == null) {
pointName = "pointtest";
}
StyleFactory sFac = StyleFactoryFinder.createStyleFactory();
// The following is complex, and should be built from
// an SLD document and not by hand
PointSymbolizer pointsym = sFac.createPointSymbolizer();
pointsym.setGraphic(sFac.getDefaultGraphic());
LineSymbolizer linesym = sFac.createLineSymbolizer();
Stroke myStroke = sFac.getDefaultStroke();
myStroke.setColor(TestUtilites.filterFactory.literal("#0000ff"));
myStroke.setWidth(TestUtilites.filterFactory.literal(new Integer(5)));
Rendering2DTest.LOGGER.fine("got new Stroke " + myStroke);
linesym.setStroke(myStroke);
PolygonSymbolizer polysym = sFac.createPolygonSymbolizer();
Fill myFill = sFac.getDefaultFill();
myFill.setColor(TestUtilites.filterFactory.literal("#ff0000"));
polysym.setFill(myFill);
myStroke = sFac.getDefaultStroke();
myStroke.setColor(TestUtilites.filterFactory.literal("#0000ff"));
myStroke.setWidth(TestUtilites.filterFactory.literal(new Integer(2)));
polysym.setStroke(myStroke);
Rule rule = sFac.createRule();
rule.setSymbolizers(new Symbolizer[] { polysym });
FeatureTypeStyle fts = sFac.createFeatureTypeStyle(new Rule[] { rule });
fts.setFeatureTypeName(polyName);
Rule rule2 = sFac.createRule();
rule2.setSymbolizers(new Symbolizer[] { linesym });
FeatureTypeStyle fts2 = sFac.createFeatureTypeStyle();
fts2.setRules(new Rule[] { rule2 });
fts2.setFeatureTypeName(lineName);
Rule rule3 = sFac.createRule();
rule3.setSymbolizers(new Symbolizer[] { pointsym });
FeatureTypeStyle fts3 = sFac.createFeatureTypeStyle();
fts3.setRules(new Rule[] { rule3 });
fts3.setFeatureTypeName(pointName);
Style style = sFac.createStyle();
style.setFeatureTypeStyles(new FeatureTypeStyle[] { fts, fts2, fts3 });
return style;
}
/**
* bounds may be null
*
* @param testName DOCUMENT ME!
* @param renderer DOCUMENT ME!
* @param timeOut DOCUMENT ME!
* @param bounds DOCUMENT ME!
*
* @throws Exception DOCUMENT ME!
*/
public static BufferedImage showRender(String testName, GTRenderer renderer,
long timeOut, Envelope bounds) throws Exception {
return showRender(testName, renderer, timeOut, bounds, -1);
}
/**
* bounds may be null
*
* @param testName DOCUMENT ME!
* @param renderer DOCUMENT ME!
* @param timeOut DOCUMENT ME!
* @param bounds DOCUMENT ME!
* @param expectedFeatureCount DOCUMENT ME!
* @return
*
* @throws Exception DOCUMENT ME!
*/
public static BufferedImage showRender(String testName, GTRenderer renderer,
long timeOut, Envelope bounds, int expectedFeatureCount)
throws Exception {
RenderListener listener;
if (expectedFeatureCount > -1) {
listener = new CountingRenderListener(testName);
}
else {
listener = new LogginRenderListener(testName);
}
renderer.addRenderListener(listener);
int w = 300;
int h = 300;
final BufferedImage image = new BufferedImage(w, h,
BufferedImage.TYPE_INT_ARGB);
Graphics g = image.getGraphics();
g.setColor(Color.white);
g.fillRect(0, 0, w, h);
TestUtilites.render(renderer, g, new Rectangle(w, h), bounds);
g.dispose();
if (!GraphicsEnvironment.isHeadless() && TestUtilites.INTERACTIVE) {
Frame frame = new Frame(testName);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
e.getWindow().dispose();
}
});
Panel p = new Panel() {
/** <code>serialVersionUID</code> field */
private static final long serialVersionUID = 1L;
public void paint(Graphics g) {
g.drawImage(image, 0, 0, this);
}
};
frame.add(p);
frame.setSize(w, h);
frame.setVisible(true);
Thread.sleep(timeOut);
frame.dispose();
}
boolean hasData = false; //All I can seem to check reliably.
for (int y = 0; !hasData && y < h; y++) {
for (int x = 0; !hasData && x < w; x++) {
if (image.getRGB(x, y) != -1) {
hasData = true;
}
}
}
TestCase.assertTrue("image is blank and should not be", hasData);
renderer.removeRenderListener(listener);
if (expectedFeatureCount > -1) {
TestCase.assertEquals(expectedFeatureCount, ((CountingRenderListener)listener).count);
}
return image;
}
/**
* responsible for actually rendering.
*
* @param obj DOCUMENT ME!
* @param g
* @param rect DOCUMENT ME!
* @param bounds
*
* @throws IOException
*/
private static void render(Object obj, Graphics g, Rectangle rect, Envelope bounds)
throws IOException {
if (obj instanceof GTRenderer) {
GTRenderer renderer = (GTRenderer) obj;
if (bounds == null) {
bounds = renderer.getContext().getLayerBounds();
}
renderer.paint((Graphics2D) g, rect, bounds);
}
}
/** Simply logs errors */
public static class LogginRenderListener implements RenderListener {
public LogginRenderListener( String testName ){
this.location = testName;
}
public String location = "TestUtilities";
public void featureRenderer(SimpleFeature feature) {
}
public void errorOccurred(Exception e) {
LOGGER.log(Level.INFO, location, e );
}
}
/** Logs errors and counts the number of features rendered */
public static class CountingRenderListener implements RenderListener {
public CountingRenderListener( String testName ){
this.location = testName;
}
public int count = 0;
public String location = "TestUtilities";
public void featureRenderer(SimpleFeature feature) {
count++;
}
public void errorOccurred(Exception e) {
LOGGER.log(Level.INFO, location, e );
}
}
/**
* Collects the number of produced exceptions.
*/
public static class ExceptionCollectorRenderListener implements RenderListener {
public List<Exception> exceptions = new ArrayList<Exception>();
public String location = "TestUtilities";
public ExceptionCollectorRenderListener( String testName ){
this.location = testName;
}
public void featureRenderer(SimpleFeature feature) {
}
public void errorOccurred(Exception e) {
LOGGER.log(Level.INFO, location, e );
exceptions.add(e);
}
}
}