/*
* This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
*
* Copyright 2008-2011 Geosparc nv, http://www.geosparc.com/, Belgium.
*
* The program is available in open source according to the GNU Affero
* General Public License. All contributions in this program are covered
* by the Geomajas Contributors License Agreement. For full licensing
* details, see LICENSE.txt in the project root.
*/
package org.geomajas.puregwt.client.map;
import java.util.ArrayList;
import javax.annotation.PostConstruct;
import junit.framework.Assert;
import org.geomajas.configuration.client.ClientMapInfo;
import org.geomajas.configuration.client.ScaleInfo;
import org.geomajas.puregwt.client.map.ZoomStrategy.ZoomOption;
import org.geomajas.puregwt.client.spatial.Bbox;
import org.geomajas.puregwt.client.spatial.GeometryFactory;
import org.geomajas.puregwt.client.spatial.GeometryFactoryImpl;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* Test case that tests the FreeForAll ZoomStrategy.
*
* @author Pieter De Graef
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "/org/geomajas/spring/geomajasContext.xml", "viewPortContext.xml",
"mapViewPortBeans.xml", "mapBeansNoResolutions.xml", "layerViewPortBeans.xml" })
@DirtiesContext
public class FixedStepZoomStrategyTest {
private static final double[] SCALES = new double[] { 8.0, 4.0, 2.0, 1.0 };
@Autowired
@Qualifier(value = "mapViewPortBeans")
private ClientMapInfo mapInfo;
private ZoomStrategy zoomStrategy;
@PostConstruct
public void initialize() {
GeometryFactory factory = new GeometryFactoryImpl();
Bbox maxBounds = factory.createBbox(mapInfo.getMaxBounds());
zoomStrategy = new FixedStepZoomStrategy(mapInfo, maxBounds);
zoomStrategy.setMapSize(100, 100);
}
@Test
public void testMaximumScale() {
Assert.assertEquals(SCALES[0], zoomStrategy.getMaximumScale());
}
@Test
public void testMinimumScale() {
// Should be the minimum ratio (hor/vert) of the map width/height divided by the maxbounds width/height.
Assert.assertEquals(SCALES[3], zoomStrategy.getMinimumScale());
// Change map size - this does NOT change the minimum scale:
zoomStrategy.setMapSize(120, 120);
Assert.assertEquals(SCALES[3], zoomStrategy.getMinimumScale());
// Reset map size:
zoomStrategy.setMapSize(100, 100);
}
@Test
public void testZoomStepCount() {
// Allowed scales: 0.5, 1, 2, 4. Count = 4.
Assert.assertEquals(4, zoomStrategy.getZoomStepCount());
// Change map size. Allowed scales remain the same...
zoomStrategy.setMapSize(120, 120);
Assert.assertEquals(4, zoomStrategy.getZoomStepCount());
// Reset map size:
zoomStrategy.setMapSize(100, 100);
}
@Test
public void testZoomStepScale() {
try {
zoomStrategy.getZoomStepScale(-1);
Assert.fail(); // We should not get here...
} catch (Exception e) {
// Test passed!
}
try {
zoomStrategy.getZoomStepScale(Integer.MAX_VALUE);
Assert.fail(); // We should not get here...
} catch (Exception e) {
// Test passed!
}
Assert.assertEquals(SCALES[0], zoomStrategy.getZoomStepScale(0));
Assert.assertEquals(SCALES[1], zoomStrategy.getZoomStepScale(1));
Assert.assertEquals(SCALES[2], zoomStrategy.getZoomStepScale(2));
Assert.assertEquals(SCALES[3], zoomStrategy.getZoomStepScale(3));
// Change map size. Allowed scales: 0.6, 1.2, 2.4 (4.8 is larger than maximum allowed scale).
zoomStrategy.setMapSize(120, 120);
Assert.assertEquals(SCALES[0], zoomStrategy.getZoomStepScale(0));
Assert.assertEquals(SCALES[1], zoomStrategy.getZoomStepScale(1));
Assert.assertEquals(SCALES[2], zoomStrategy.getZoomStepScale(2));
Assert.assertEquals(SCALES[3], zoomStrategy.getZoomStepScale(3));
// Reset map size:
zoomStrategy.setMapSize(100, 100);
}
@Test
public void testZoomStepIndex() {
for (int i = 0; i < 4; i++) {
Assert.assertEquals(i, zoomStrategy.getZoomStepIndex(SCALES[i]));
}
Assert.assertEquals(0, zoomStrategy.getZoomStepIndex(8.5));
Assert.assertEquals(0, zoomStrategy.getZoomStepIndex(7.0));
Assert.assertEquals(1, zoomStrategy.getZoomStepIndex(4.1));
Assert.assertEquals(1, zoomStrategy.getZoomStepIndex(3.9));
Assert.assertEquals(2, zoomStrategy.getZoomStepIndex(3.0)); // Perfectly half-way. Prefer the zoomed out step.
Assert.assertEquals(2, zoomStrategy.getZoomStepIndex(2.9));
Assert.assertEquals(2, zoomStrategy.getZoomStepIndex(2.1));
Assert.assertEquals(3, zoomStrategy.getZoomStepIndex(1.1));
Assert.assertEquals(3, zoomStrategy.getZoomStepIndex(0.9));
Assert.assertEquals(3, zoomStrategy.getZoomStepIndex(-1.0));
}
@Test
public void testCheckScale() {
Assert.assertEquals(SCALES[3], zoomStrategy.checkScale(0, ZoomOption.LEVEL_FIT));
Assert.assertEquals(SCALES[2], zoomStrategy.checkScale(SCALES[3] + 0.001, ZoomOption.LEVEL_FIT));
Assert.assertEquals(SCALES[1], zoomStrategy.checkScale(SCALES[2] + 0.001, ZoomOption.LEVEL_FIT));
Assert.assertEquals(SCALES[0], zoomStrategy.checkScale(SCALES[1] + 0.001, ZoomOption.LEVEL_FIT));
Assert.assertEquals(SCALES[0], zoomStrategy.checkScale(SCALES[0] + 0.001, ZoomOption.LEVEL_FIT));
}
@Test
public void testFaultyConfiguration() {
GeometryFactory factory = new GeometryFactoryImpl();
Bbox maxBounds = factory.createBbox(mapInfo.getMaxBounds());
// Null value for scale levels:
mapInfo.getScaleConfiguration().setZoomLevels(null);
try {
zoomStrategy = new FixedStepZoomStrategy(mapInfo, maxBounds);
Assert.fail();
} catch (IllegalArgumentException e) {
// Expected exception.
}
// Empty list of scale levels:
mapInfo.getScaleConfiguration().setZoomLevels(new ArrayList<ScaleInfo>());
try {
zoomStrategy = new FixedStepZoomStrategy(mapInfo, maxBounds);
Assert.fail();
} catch (IllegalArgumentException e) {
// Expected exception.
}
}
}