/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2016, 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.lite;
import static java.awt.RenderingHints.KEY_ANTIALIASING;
import static java.awt.RenderingHints.VALUE_ANTIALIAS_ON;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Collections;
import org.geotools.data.DataUtilities;
import org.geotools.data.Query;
import org.geotools.data.property.PropertyDataStore;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.data.store.ContentFeatureSource;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.geotools.image.test.ImageAssert;
import org.geotools.map.FeatureLayer;
import org.geotools.map.MapContent;
import org.geotools.renderer.style.FontCache;
import org.geotools.renderer.style.SLDStyleFactory;
import org.geotools.styling.Style;
import org.geotools.test.TestData;
import org.junit.Before;
import org.junit.Test;
import org.opengis.filter.FilterFactory;
/**
* Tests labels underling.
*/
public class LabelUnderlineTest {
private ReferencedEnvelope bounds;
private ContentFeatureSource featureSource;
@Before
public void setUp() throws Exception {
FontCache.getDefaultInstance().registerFont(
Font.createFont(Font.TRUETYPE_FONT, TestData.getResource(this, "Vera.ttf").openStream()));
// load the data, in this case a set of different linestring
File property = new File(TestData.getResource(this, "nonStraightLines.properties").toURI());
PropertyDataStore dataStore = new PropertyDataStore(property.getParentFile());
featureSource = dataStore.getFeatureSource("nonStraightLines");
// expand the bands so we can view all the labels
bounds = featureSource.getBounds();
bounds.expandBy(1, 1);
}
@Test
public void testLabelsUnderline() throws Exception {
// load the style that will underline the labels
Style style = RendererBaseTest.loadStyle(this, "underlineStyle.sld");
// set the map content
MapContent mapContent = new MapContent();
mapContent.addLayer(new FeatureLayer(featureSource, style));
// instantiate and initiate the render
StreamingRenderer renderer = new StreamingRenderer();
renderer.setMapContent(mapContent);
renderer.setJava2DHints(new RenderingHints(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON));
// create the output image and add a dark background for testing the halo
BufferedImage image = new BufferedImage(1000, 1000, BufferedImage.TYPE_3BYTE_BGR);
Graphics2D graphics = image.createGraphics();
graphics.setColor(Color.LIGHT_GRAY);
graphics.fillRect(0, 0, image.getWidth(), image.getHeight());
// render the lines with the underline labels
renderer.paint(graphics, new Rectangle(0, 0, image.getWidth(), image.getHeight()), bounds);
// let's see if the result image match our expectations
File reference = new File("./src/test/resources/org/geotools/renderer/lite/test-data/underlineStyle.sld.png");
ImageAssert.assertEquals(reference, image, 3000);
}
@Test
public void testLabelsUnderline_legacyAnchorPoint() throws Exception {
System.setProperty(SLDStyleFactory.USE_LEGACY_ANCHOR_POINT_KEY, "true");
// load the style that will underline the labels
Style style = RendererBaseTest.loadStyle(this, "underlineStyle.sld");
// set the map content
MapContent mapContent = new MapContent();
mapContent.addLayer(new FeatureLayer(featureSource, style));
// instantiate and initiate the render
StreamingRenderer renderer = new StreamingRenderer();
renderer.setMapContent(mapContent);
renderer.setJava2DHints(new RenderingHints(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON));
// create the output image and add a dark background for testing the halo
BufferedImage image = new BufferedImage(1000, 1000, BufferedImage.TYPE_3BYTE_BGR);
Graphics2D graphics = image.createGraphics();
graphics.setColor(Color.LIGHT_GRAY);
graphics.fillRect(0, 0, image.getWidth(), image.getHeight());
// render the lines with the underline labels
renderer.paint(graphics, new Rectangle(0, 0, image.getWidth(), image.getHeight()), bounds);
// let's see if the result image match our expectations
File reference = new File("./src/test/resources/org/geotools/renderer/lite/test-data/underlineStyle-legacyAnchorPoint.sld.png");
ImageAssert.assertEquals(reference, image, 3000);
System.clearProperty(SLDStyleFactory.USE_LEGACY_ANCHOR_POINT_KEY);
}
@Test
public void testLabelInOrigin() throws Exception {
MapContent mapContent = new MapContent();
FilterFactory ff = CommonFactoryFinder.getFilterFactory();
SimpleFeatureSource view = DataUtilities.createView(this.featureSource, new Query(null, ff.id(Collections.singleton(ff.featureId("Line.4")))));
Style style = RendererBaseTest.loadStyle(this, "labelStyle.sld");
mapContent.addLayer(new FeatureLayer(view, style));
// instantiate and initiate the render
StreamingRenderer renderer = new StreamingRenderer();
renderer.setMapContent(mapContent);
renderer.setJava2DHints(new RenderingHints(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON));
// create the output image and add a dark background for testing the halo
BufferedImage image = new BufferedImage(768, 754, BufferedImage.TYPE_3BYTE_BGR);
Graphics2D graphics = image.createGraphics();
graphics.setColor(Color.LIGHT_GRAY);
graphics.fillRect(0, 0, image.getWidth(), image.getHeight());
// render the lines with the underline labels
ReferencedEnvelope bounds = featureSource.getBounds();
bounds.expandBy(-1, -1);
renderer.paint(graphics, new Rectangle(0, 0, image.getWidth(), image.getHeight()), bounds);
// let's see if the result image match our expectations
File reference = new File("./src/test/resources/org/geotools/renderer/lite/test-data/labelTopLeft.sld.png");
ImageAssert.assertEquals(reference, image, 3000);
}
}