[10271] | 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.gui.layer;
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| 3 |
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[10397] | 4 | import static org.hamcrest.CoreMatchers.any;
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[10271] | 5 | import static org.junit.Assert.assertEquals;
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| 6 | import static org.junit.Assert.assertFalse;
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| 7 | import static org.junit.Assert.assertNotNull;
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| 8 | import static org.junit.Assert.assertNull;
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| 9 | import static org.junit.Assert.assertSame;
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| 10 | import static org.junit.Assert.assertTrue;
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| 11 | import static org.junit.Assert.fail;
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| 12 |
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[10467] | 13 | import java.awt.Component;
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| 14 | import java.awt.Graphics;
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[10271] | 15 | import java.awt.Graphics2D;
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[10397] | 16 | import java.lang.reflect.InvocationTargetException;
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[10271] | 17 | import java.util.ArrayList;
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| 18 | import java.util.Arrays;
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[11000] | 19 | import java.util.Collections;
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[10271] | 20 |
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| 21 | import javax.swing.Action;
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| 22 | import javax.swing.Icon;
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| 23 |
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| 24 | import org.junit.Before;
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[10397] | 25 | import org.junit.Rule;
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[10271] | 26 | import org.junit.Test;
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| 27 | import org.openstreetmap.josm.data.Bounds;
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| 28 | import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
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| 29 | import org.openstreetmap.josm.gui.MapView;
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| 30 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent;
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| 31 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerChangeListener;
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| 32 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent;
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| 33 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent;
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| 34 | import org.openstreetmap.josm.gui.util.GuiHelper;
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[10397] | 35 | import org.openstreetmap.josm.testutils.ExpectedRootException;
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| 36 | import org.openstreetmap.josm.tools.bugreport.ReportedException;
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[10271] | 37 |
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| 38 | /**
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| 39 | * Test the {@link LayerManager} class.
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| 40 | * @author Michael Zangl
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| 41 | *
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| 42 | */
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| 43 | public class LayerManagerTest {
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[10467] | 44 | /**
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| 45 | * This is a layer that can be used in tests. It does not do anything and provides a simple, fake implementation.
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| 46 | * @author Michael Zangl
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| 47 | */
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| 48 | public static class TestLayer extends Layer {
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| 49 | /**
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| 50 | * Create a new test layer.
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| 51 | */
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| 52 | public TestLayer() {
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[10271] | 53 | super("Test Layer");
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| 54 | }
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| 55 |
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| 56 | @Override
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| 57 | public void paint(Graphics2D g, MapView mv, Bounds bbox) {
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| 58 | }
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| 59 |
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| 60 | @Override
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| 61 | public void visitBoundingBox(BoundingXYVisitor v) {
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| 62 | }
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| 63 |
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| 64 | @Override
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| 65 | public void mergeFrom(Layer from) {
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| 66 | }
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| 67 |
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| 68 | @Override
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| 69 | public boolean isMergable(Layer other) {
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| 70 | return false;
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| 71 | }
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| 72 |
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| 73 | @Override
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| 74 | public String getToolTipText() {
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| 75 | return null;
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| 76 | }
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| 77 |
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| 78 | @Override
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| 79 | public Action[] getMenuEntries() {
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[10467] | 80 | return new Action[0];
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[10271] | 81 | }
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| 82 |
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| 83 | @Override
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| 84 | public Object getInfoComponent() {
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| 85 | return null;
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| 86 | }
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| 87 |
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| 88 | @Override
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| 89 | public Icon getIcon() {
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[10467] | 90 | return new Icon() {
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| 91 | @Override
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| 92 | public void paintIcon(Component c, Graphics g, int x, int y) {
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| 93 | // nop
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| 94 | }
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| 95 |
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| 96 | @Override
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| 97 | public int getIconWidth() {
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| 98 | return 10;
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| 99 | }
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| 100 |
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| 101 | @Override
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| 102 | public int getIconHeight() {
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| 103 | return 10;
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| 104 | }
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| 105 | };
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[10271] | 106 | }
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| 107 |
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| 108 | @Override
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| 109 | public LayerPositionStrategy getDefaultLayerPosition() {
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[10744] | 110 | return LayerPositionStrategy.afterLast(o -> true);
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[10271] | 111 | }
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| 112 | }
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| 113 |
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[10467] | 114 | protected static class TestLayer2 extends TestLayer {}
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[10271] | 115 |
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| 116 | /**
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| 117 | * Intercepts the events for easier testing.
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| 118 | * @author Michael Zangl
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| 119 | *
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| 120 | */
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| 121 | protected class CapturingLayerChangeListener implements LayerChangeListener {
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[11000] | 122 | protected LayerAddEvent layerAdded;
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| 123 | protected LayerRemoveEvent layerRemoved;
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| 124 | protected LayerOrderChangeEvent layerOrderChanged;
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[10271] | 125 |
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| 126 | @Override
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| 127 | public void layerAdded(LayerAddEvent e) {
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| 128 | GuiHelper.assertCallFromEdt();
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| 129 | assertNull(layerAdded);
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| 130 | assertSame(layerManager, e.getSource());
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| 131 | layerAdded = e;
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| 132 | }
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| 133 |
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| 134 | @Override
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| 135 | public void layerRemoving(LayerRemoveEvent e) {
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| 136 | GuiHelper.assertCallFromEdt();
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| 137 | assertNull(layerRemoved);
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| 138 | assertSame(layerManager, e.getSource());
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| 139 | layerRemoved = e;
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| 140 | }
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| 141 |
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| 142 | @Override
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| 143 | public void layerOrderChanged(LayerOrderChangeEvent e) {
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| 144 | GuiHelper.assertCallFromEdt();
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| 145 | assertNull(layerOrderChanged);
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| 146 | assertSame(layerManager, e.getSource());
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| 147 | layerOrderChanged = e;
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| 148 | }
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| 149 | }
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| 150 |
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[11000] | 151 | private final class ResetStateChangeListener extends CapturingLayerChangeListener {
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| 152 | int removed = 0;
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| 153 |
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| 154 | @Override
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| 155 | public void layerRemoving(LayerRemoveEvent e) {
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| 156 | // count only
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| 157 | removed++;
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| 158 | }
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| 159 | }
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| 160 |
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[11905] | 161 | /** the tested layer manager */
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[10271] | 162 | protected LayerManager layerManager;
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| 163 |
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| 164 | /**
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[10397] | 165 | * Rule used to expect exceptions.
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| 166 | */
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| 167 | @Rule
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| 168 | public ExpectedRootException thrown = ExpectedRootException.none();
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| 169 |
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| 170 | /**
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[10271] | 171 | * Set up test layer manager.
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| 172 | */
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| 173 | @Before
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[10378] | 174 | public void setUp() {
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[10271] | 175 | layerManager = new LayerManager();
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| 176 | }
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| 177 |
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| 178 | /**
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| 179 | * {@link LayerManager#addLayer(Layer)}
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| 180 | */
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| 181 | @Test
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| 182 | public void testAddLayer() {
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[10467] | 183 | Layer layer1 = new TestLayer() {
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[10271] | 184 | @Override
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| 185 | public LayerPositionStrategy getDefaultLayerPosition() {
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| 186 | return LayerPositionStrategy.IN_FRONT;
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| 187 | }
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| 188 |
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| 189 | @Override
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| 190 | public boolean isBackgroundLayer() {
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| 191 | return true;
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| 192 | }
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| 193 | };
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[10467] | 194 | Layer layer2 = new TestLayer() {
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[10271] | 195 | @Override
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| 196 | public LayerPositionStrategy getDefaultLayerPosition() {
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| 197 | return LayerPositionStrategy.IN_FRONT;
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| 198 | }
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| 199 | };
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[10467] | 200 | Layer layer3 = new TestLayer() {
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[10271] | 201 | @Override
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| 202 | public LayerPositionStrategy getDefaultLayerPosition() {
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| 203 | return LayerPositionStrategy.BEFORE_FIRST_BACKGROUND_LAYER;
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| 204 | }
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| 205 | };
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| 206 |
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| 207 | layerManager.addLayer(layer1);
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| 208 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1));
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| 209 | layerManager.addLayer(layer2);
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| 210 | assertEquals(layerManager.getLayers(), Arrays.asList(layer2, layer1));
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| 211 | layerManager.addLayer(layer3);
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| 212 | assertEquals(layerManager.getLayers(), Arrays.asList(layer2, layer3, layer1));
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| 213 |
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| 214 | // event
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[10467] | 215 | TestLayer layer4 = new TestLayer();
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[10271] | 216 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 217 | layerManager.addLayerChangeListener(l);
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| 218 | layerManager.addLayer(layer4);
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| 219 |
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| 220 | assertSame(layer4, l.layerAdded.getAddedLayer());
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| 221 | assertNull(l.layerRemoved);
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| 222 | assertNull(l.layerOrderChanged);
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| 223 | }
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| 224 |
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| 225 | /**
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| 226 | * {@link LayerManager#addLayer(Layer)}: duplicate layers
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| 227 | */
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[10397] | 228 | @Test
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[10271] | 229 | public void testAddLayerFails() {
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[10397] | 230 | thrown.expect(ReportedException.class);
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| 231 | thrown.expectCause(any(InvocationTargetException.class));
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| 232 | thrown.expectRootCause(any(IllegalArgumentException.class));
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| 233 |
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[10467] | 234 | TestLayer layer1 = new TestLayer();
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[10271] | 235 | layerManager.addLayer(layer1);
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| 236 | layerManager.addLayer(layer1);
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| 237 | }
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| 238 |
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| 239 | /**
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| 240 | * {@link LayerManager#addLayer(Layer)}: illegal default layer position
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| 241 | */
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[10397] | 242 | @Test
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[10271] | 243 | public void testAddLayerIllegalPosition() {
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[10397] | 244 | thrown.expect(ReportedException.class);
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| 245 | thrown.expectCause(any(InvocationTargetException.class));
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| 246 | thrown.expectRootCause(any(IndexOutOfBoundsException.class));
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| 247 |
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[10467] | 248 | TestLayer layer1 = new TestLayer() {
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[10271] | 249 | @Override
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| 250 | public LayerPositionStrategy getDefaultLayerPosition() {
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[10592] | 251 | return manager -> 42;
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[10271] | 252 | }
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| 253 | };
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| 254 | layerManager.addLayer(layer1);
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| 255 | }
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| 256 |
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| 257 | /**
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| 258 | * {@link LayerManager#removeLayer(Layer)}
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| 259 | */
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| 260 | @Test
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| 261 | public void testRemoveLayer() {
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[10467] | 262 | TestLayer layer1 = new TestLayer();
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| 263 | TestLayer layer2 = new TestLayer();
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[10271] | 264 | layerManager.addLayer(layer1);
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| 265 | layerManager.addLayer(layer2);
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| 266 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1, layer2));
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| 267 |
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| 268 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 269 | layerManager.addLayerChangeListener(l);
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| 270 | layerManager.removeLayer(layer2);
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| 271 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1));
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| 272 |
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| 273 | assertNull(l.layerAdded);
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| 274 | assertSame(layer2, l.layerRemoved.getRemovedLayer());
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| 275 | assertNull(l.layerOrderChanged);
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| 276 | }
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| 277 |
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| 278 | /**
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| 279 | * {@link LayerManager#moveLayer(Layer, int)}
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| 280 | */
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| 281 | @Test
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| 282 | public void testMoveLayer() {
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[10467] | 283 | TestLayer layer1 = new TestLayer();
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| 284 | TestLayer layer2 = new TestLayer();
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[10271] | 285 | layerManager.addLayer(layer1);
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| 286 | layerManager.addLayer(layer2);
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| 287 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1, layer2));
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| 288 |
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| 289 | layerManager.moveLayer(layer2, 0);
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| 290 | assertEquals(layerManager.getLayers(), Arrays.asList(layer2, layer1));
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| 291 |
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| 292 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 293 | layerManager.addLayerChangeListener(l);
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| 294 | layerManager.moveLayer(layer2, 1);
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| 295 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1, layer2));
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| 296 |
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| 297 | assertNull(l.layerAdded);
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| 298 | assertNull(l.layerRemoved);
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| 299 | assertNotNull(l.layerOrderChanged);
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| 300 |
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| 301 | // This should not change anything and not fire any event
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| 302 | layerManager.moveLayer(layer2, 1);
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| 303 | assertEquals(layerManager.getLayers(), Arrays.asList(layer1, layer2));
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| 304 | }
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| 305 |
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| 306 | /**
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| 307 | * {@link LayerManager#moveLayer(Layer, int)} fails for wrong index
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| 308 | */
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[10397] | 309 | @Test
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[10271] | 310 | public void testMoveLayerFailsRange() {
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[10397] | 311 | thrown.expect(ReportedException.class);
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| 312 | thrown.expectCause(any(InvocationTargetException.class));
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| 313 | thrown.expectRootCause(any(IndexOutOfBoundsException.class));
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| 314 |
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[10467] | 315 | TestLayer layer1 = new TestLayer();
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| 316 | TestLayer layer2 = new TestLayer();
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[10271] | 317 | layerManager.addLayer(layer1);
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| 318 | layerManager.addLayer(layer2);
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| 319 | layerManager.moveLayer(layer2, 2);
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| 320 | }
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| 321 |
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| 322 | /**
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| 323 | * {@link LayerManager#moveLayer(Layer, int)} fails for wrong layer
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| 324 | */
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[10397] | 325 | @Test
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[10271] | 326 | public void testMoveLayerFailsNotInList() {
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[10397] | 327 | thrown.expect(ReportedException.class);
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| 328 | thrown.expectCause(any(InvocationTargetException.class));
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| 329 | thrown.expectRootCause(any(IllegalArgumentException.class));
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| 330 |
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[10467] | 331 | TestLayer layer1 = new TestLayer();
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| 332 | TestLayer layer2 = new TestLayer();
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[10271] | 333 | layerManager.addLayer(layer1);
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| 334 | layerManager.moveLayer(layer2, 0);
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| 335 | }
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| 336 |
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| 337 | /**
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| 338 | * {@link LayerManager#getLayers()} unmodifiable
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| 339 | */
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| 340 | @Test(expected = UnsupportedOperationException.class)
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| 341 | public void testGetLayers() {
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| 342 | // list should be immutable
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[10467] | 343 | TestLayer layer1 = new TestLayer();
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| 344 | TestLayer layer2 = new TestLayer();
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[10271] | 345 | layerManager.addLayer(layer1);
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| 346 | layerManager.addLayer(layer2);
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| 347 | layerManager.getLayers().remove(0);
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| 348 | }
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| 349 |
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| 350 | /**
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| 351 | * {@link LayerManager#getLayersOfType(Class)}
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| 352 | */
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| 353 | @Test
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| 354 | public void testGetLayersOfType() {
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[10467] | 355 | TestLayer2 layer1 = new TestLayer2();
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| 356 | TestLayer2 layer2 = new TestLayer2();
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[10271] | 357 | layerManager.addLayer(layer1);
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[10467] | 358 | layerManager.addLayer(new TestLayer());
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[10271] | 359 | layerManager.addLayer(layer2);
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| 360 |
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[10467] | 361 | assertEquals(layerManager.getLayersOfType(TestLayer2.class), Arrays.asList(layer1, layer2));
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[10271] | 362 | }
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| 363 |
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| 364 | /**
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| 365 | * {@link LayerManager#containsLayer(Layer)}
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| 366 | */
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| 367 | @Test
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| 368 | public void testContainsLayer() {
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[10467] | 369 | TestLayer layer = new TestLayer();
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[10271] | 370 | layerManager.addLayer(layer);
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[10467] | 371 | layerManager.addLayer(new TestLayer());
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[10271] | 372 |
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| 373 | assertTrue(layerManager.containsLayer(layer));
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[10467] | 374 | assertFalse(layerManager.containsLayer(new TestLayer()));
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[10271] | 375 | }
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| 376 |
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| 377 | /**
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| 378 | * {@link LayerManager#addLayerChangeListener(LayerChangeListener)}
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| 379 | */
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| 380 | @Test
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| 381 | public void testAddLayerChangeListener() {
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| 382 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 383 | layerManager.addLayerChangeListener(l);
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| 384 | assertNull(l.layerAdded);
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| 385 | assertNull(l.layerRemoved);
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| 386 | assertNull(l.layerOrderChanged);
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| 387 | }
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| 388 |
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| 389 | /**
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| 390 | * {@link LayerManager#addLayerChangeListener(LayerChangeListener)} twice
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| 391 | */
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| 392 | @Test(expected = IllegalArgumentException.class)
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| 393 | public void testAddLayerChangeListenerDupplicates() {
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| 394 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 395 | layerManager.addLayerChangeListener(l);
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| 396 | layerManager.addLayerChangeListener(l);
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| 397 | }
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| 398 |
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| 399 | /**
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[11905] | 400 | * {@link LayerManager#addAndFireLayerChangeListener(LayerChangeListener)} fires fake add events
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[10271] | 401 | */
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| 402 | @Test
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| 403 | public void testAddLayerChangeListenerFire() {
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| 404 | final ArrayList<Layer> fired = new ArrayList<>();
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[10467] | 405 | TestLayer layer1 = new TestLayer();
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| 406 | TestLayer layer2 = new TestLayer();
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[10271] | 407 | layerManager.addLayer(layer1);
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| 408 | layerManager.addLayer(layer2);
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[11905] | 409 | layerManager.addAndFireLayerChangeListener(new LayerChangeListener() {
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[10271] | 410 | @Override
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| 411 | public void layerRemoving(LayerRemoveEvent e) {
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| 412 | fail();
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| 413 | }
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| 414 |
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| 415 | @Override
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| 416 | public void layerOrderChanged(LayerOrderChangeEvent e) {
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| 417 | fail();
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| 418 | }
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| 419 |
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| 420 | @Override
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| 421 | public void layerAdded(LayerAddEvent e) {
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| 422 | fired.add(e.getAddedLayer());
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| 423 | }
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[11905] | 424 | });
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[10271] | 425 |
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| 426 | assertEquals(Arrays.asList(layer1, layer2), fired);
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| 427 | }
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| 428 |
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| 429 | /**
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| 430 | * {@link LayerManager#removeLayerChangeListener(LayerChangeListener)}
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| 431 | */
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| 432 | @Test
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| 433 | public void testRemoveLayerChangeListener() {
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| 434 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 435 | layerManager.addLayerChangeListener(l);
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[10467] | 436 | layerManager.addLayer(new TestLayer());
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[10271] | 437 | layerManager.removeLayerChangeListener(l);
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[10467] | 438 | layerManager.addLayer(new TestLayer());
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[10271] | 439 | // threw exception when fired twice.
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| 440 | assertNotNull(l.layerAdded);
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| 441 | assertNull(l.layerRemoved);
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| 442 | assertNull(l.layerOrderChanged);
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| 443 | }
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| 444 |
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| 445 | /**
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| 446 | * {@link LayerManager#removeLayerChangeListener(LayerChangeListener)} listener not in list
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| 447 | */
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| 448 | @Test(expected = IllegalArgumentException.class)
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| 449 | public void testRemoveLayerChangeListenerNotAdded() {
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| 450 | CapturingLayerChangeListener l = new CapturingLayerChangeListener();
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| 451 | layerManager.removeLayerChangeListener(l);
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| 452 | }
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| 453 |
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| 454 | /**
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[11905] | 455 | * {@link LayerManager#removeAndFireLayerChangeListener(LayerChangeListener)} fires fake remove events
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[10271] | 456 | */
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| 457 | @Test
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| 458 | public void testRemoveLayerChangeListenerFire() {
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| 459 | final ArrayList<Layer> fired = new ArrayList<>();
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[10467] | 460 | TestLayer layer1 = new TestLayer();
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| 461 | TestLayer layer2 = new TestLayer();
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[10271] | 462 | layerManager.addLayer(layer1);
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| 463 | layerManager.addLayer(layer2);
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| 464 | LayerChangeListener listener = new LayerChangeListener() {
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| 465 | @Override
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| 466 | public void layerRemoving(LayerRemoveEvent e) {
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| 467 | fired.add(e.getRemovedLayer());
|
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| 468 | }
|
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| 469 |
|
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| 470 | @Override
|
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| 471 | public void layerOrderChanged(LayerOrderChangeEvent e) {
|
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| 472 | fail();
|
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| 473 | }
|
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| 474 |
|
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| 475 | @Override
|
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| 476 | public void layerAdded(LayerAddEvent e) {
|
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| 477 | fail();
|
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| 478 | }
|
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| 479 | };
|
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[11905] | 480 | layerManager.addLayerChangeListener(listener);
|
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| 481 | layerManager.removeAndFireLayerChangeListener(listener);
|
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[10271] | 482 |
|
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| 483 | assertEquals(Arrays.asList(layer1, layer2), fired);
|
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| 484 | }
|
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| 485 |
|
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[11000] | 486 | /**
|
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| 487 | * Test {@link LayerRemoveEvent#scheduleRemoval(java.util.Collection)}
|
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| 488 | */
|
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| 489 | @Test
|
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| 490 | public void testLayerRemoveScheduleRemoval() {
|
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| 491 | TestLayer layer1 = new TestLayer();
|
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| 492 | TestLayer layer2 = new TestLayer();
|
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| 493 | layerManager.addLayer(layer1);
|
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| 494 | layerManager.addLayer(layer2);
|
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| 495 |
|
---|
| 496 | layerManager.addLayerChangeListener(new LayerChangeListener() {
|
---|
| 497 | @Override
|
---|
| 498 | public void layerRemoving(LayerRemoveEvent e) {
|
---|
| 499 | if (e.getRemovedLayer() == layer1) {
|
---|
| 500 | e.scheduleRemoval(Collections.singleton(layer2));
|
---|
| 501 | }
|
---|
| 502 | }
|
---|
| 503 |
|
---|
| 504 | @Override
|
---|
| 505 | public void layerOrderChanged(LayerOrderChangeEvent e) {
|
---|
| 506 | fail();
|
---|
| 507 | }
|
---|
| 508 |
|
---|
| 509 | @Override
|
---|
| 510 | public void layerAdded(LayerAddEvent e) {
|
---|
| 511 | fail();
|
---|
| 512 | }
|
---|
| 513 | });
|
---|
| 514 |
|
---|
| 515 | layerManager.removeLayer(layer1);
|
---|
| 516 | assertEquals(0, layerManager.getLayers().size());
|
---|
| 517 | }
|
---|
| 518 |
|
---|
| 519 | /**
|
---|
| 520 | * Test {@link LayerManager#resetState()}
|
---|
| 521 | */
|
---|
| 522 | @Test
|
---|
| 523 | public void testResetState() {
|
---|
| 524 | ResetStateChangeListener changeListener = new ResetStateChangeListener();
|
---|
| 525 | layerManager.addLayer(new TestLayer());
|
---|
| 526 | layerManager.addLayerChangeListener(changeListener);
|
---|
| 527 | layerManager.addLayer(new TestLayer());
|
---|
| 528 | assertEquals(2, layerManager.getLayers().size());
|
---|
| 529 | assertNotNull(changeListener.layerAdded);
|
---|
| 530 |
|
---|
| 531 | layerManager.resetState();
|
---|
| 532 | changeListener.layerAdded = null;
|
---|
| 533 |
|
---|
| 534 | assertEquals(2, changeListener.removed);
|
---|
| 535 | assertEquals(0, layerManager.getLayers().size());
|
---|
| 536 | layerManager.addLayer(new TestLayer());
|
---|
| 537 | assertNull(changeListener.layerAdded);
|
---|
| 538 | }
|
---|
| 539 |
|
---|
[10271] | 540 | }
|
---|