[10343] | 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.gui;
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| 3 |
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| 4 | import static org.junit.Assert.assertEquals;
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| 5 |
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[10398] | 6 | import java.awt.geom.AffineTransform;
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| 7 | import java.awt.geom.Point2D;
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| 8 | import java.util.Arrays;
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[10856] | 9 | import java.util.function.Function;
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[10398] | 10 |
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[10343] | 11 | import org.junit.Before;
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| 12 | import org.junit.BeforeClass;
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| 13 | import org.junit.Test;
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| 14 | import org.openstreetmap.josm.JOSMFixture;
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| 15 | import org.openstreetmap.josm.Main;
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| 16 | import org.openstreetmap.josm.data.coor.EastNorth;
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| 17 | import org.openstreetmap.josm.data.coor.LatLon;
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| 18 | import org.openstreetmap.josm.gui.MapViewState.MapViewPoint;
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[10867] | 19 | import org.openstreetmap.josm.gui.MapViewState.MapViewRectangle;
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[10343] | 20 |
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| 21 | /**
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| 22 | * Test {@link MapViewState}
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| 23 | * @author Michael Zangl
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| 24 | */
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| 25 | public class MapViewStateTest {
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| 26 |
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[10856] | 27 | private static final int WIDTH = 301;
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[10343] | 28 | private static final int HEIGHT = 200;
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| 29 | private MapViewState state;
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| 30 |
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| 31 | /**
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| 32 | * Setup test.
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| 33 | */
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| 34 | @BeforeClass
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| 35 | public static void setUpBeforeClass() {
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| 36 | JOSMFixture.createUnitTestFixture().init();
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| 37 | }
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| 38 |
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| 39 | /**
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[10375] | 40 | * Create the default state.
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[10343] | 41 | */
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| 42 | @Before
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| 43 | public void setUp() {
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[10375] | 44 | state = MapViewState.createDefaultState(WIDTH, HEIGHT);
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[10343] | 45 | }
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| 46 |
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[10856] | 47 | private void doTestGetCenter(Function<MapViewState, MapViewPoint> getter, Function<Integer, Double> divider) {
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| 48 | MapViewPoint center = getter.apply(state);
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| 49 | assertHasViewCoords(divider.apply(WIDTH), divider.apply(HEIGHT), center);
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[10343] | 50 |
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[10375] | 51 | MapViewState newState = state.movedTo(center, new EastNorth(3, 4));
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[10343] | 52 |
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| 53 | // state should not change, but new state should.
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[10856] | 54 | center = getter.apply(state);
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| 55 | assertHasViewCoords(divider.apply(WIDTH), divider.apply(HEIGHT), center);
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[10343] | 56 |
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[10856] | 57 | center = getter.apply(newState);
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[10375] | 58 | assertEquals("east", 3, center.getEastNorth().east(), 0.01);
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| 59 | assertEquals("north", 4, center.getEastNorth().north(), 0.01);
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[10343] | 60 | }
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| 61 |
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[10856] | 62 | /**
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| 63 | * Test {@link MapViewState#getCenter()} returns map view center.
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| 64 | */
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| 65 | @Test
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| 66 | public void testGetCenter() {
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| 67 | doTestGetCenter(s -> s.getCenter(), t -> t / 2d);
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| 68 | }
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| 69 |
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| 70 | /**
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| 71 | * Test {@link MapViewState#getCenterAtPixel()} returns map view center.
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| 72 | */
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| 73 | @Test
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| 74 | public void testGetCenterAtPixel() {
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| 75 | doTestGetCenter(s -> s.getCenterAtPixel(), t -> (double) (t / 2));
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| 76 | }
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| 77 |
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| 78 | private static void assertHasViewCoords(double x, double y, MapViewPoint center) {
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[10343] | 79 | assertEquals("x", x, center.getInViewX(), 0.01);
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| 80 | assertEquals("y", y, center.getInViewY(), 0.01);
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| 81 | assertEquals("x", x, center.getInView().getX(), 0.01);
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| 82 | assertEquals("y", y, center.getInView().getY(), 0.01);
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| 83 | }
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| 84 |
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| 85 | /**
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| 86 | * Test {@link MapViewState#getForView(double, double)}
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| 87 | */
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| 88 | @Test
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| 89 | public void testGetForView() {
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| 90 | MapViewPoint corner = state.getForView(0, 0);
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| 91 | assertHasViewCoords(0, 0, corner);
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| 92 |
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| 93 | MapViewPoint middle = state.getForView(120, 130);
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| 94 | assertHasViewCoords(120, 130, middle);
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| 95 |
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| 96 | MapViewPoint fraction = state.getForView(0.12, 0.7);
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| 97 | assertHasViewCoords(0.12, 0.7, fraction);
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| 98 |
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| 99 | MapViewPoint negative = state.getForView(-17, -30);
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| 100 | assertHasViewCoords(-17, -30, negative);
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| 101 | }
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| 102 |
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| 103 | /**
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| 104 | * Test {@link MapViewState#getViewWidth()} and {@link MapViewState#getViewHeight()}
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| 105 | */
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| 106 | @Test
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| 107 | public void testGetViewSize() {
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| 108 | assertEquals(WIDTH, state.getViewWidth(), 0.01);
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| 109 | assertEquals(HEIGHT, state.getViewHeight(), 0.01);
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| 110 | }
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| 111 |
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| 112 | /**
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| 113 | * Tests that all coordinate conversions for the point work.
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| 114 | */
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| 115 | @Test
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| 116 | public void testPointConversions() {
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[10856] | 117 | MapViewPoint p = state.getForView(WIDTH / 2d, HEIGHT / 2d);
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| 118 | assertHasViewCoords(WIDTH / 2d, HEIGHT / 2d, p);
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[10343] | 119 |
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| 120 | EastNorth eastnorth = p.getEastNorth();
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[10375] | 121 | LatLon shouldLatLon = Main.getProjection().getWorldBoundsLatLon().getCenter();
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| 122 | EastNorth shouldEastNorth = Main.getProjection().latlon2eastNorth(shouldLatLon);
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[10343] | 123 | assertEquals("east", shouldEastNorth.east(), eastnorth.east(), 0.01);
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| 124 | assertEquals("north", shouldEastNorth.north(), eastnorth.north(), 0.01);
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| 125 | MapViewPoint reversed = state.getPointFor(shouldEastNorth);
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[10856] | 126 | assertHasViewCoords(WIDTH / 2d, HEIGHT / 2d, reversed);
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[10343] | 127 |
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| 128 | LatLon latlon = p.getLatLon();
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| 129 | assertEquals("lat", shouldLatLon.lat(), latlon.lat(), 0.01);
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| 130 | assertEquals("lon", shouldLatLon.lon(), latlon.lon(), 0.01);
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| 131 |
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| 132 | MapViewPoint p2 = state.getPointFor(new EastNorth(2, 3));
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| 133 | assertEquals("east", 2, p2.getEastNorth().east(), 0.01);
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| 134 | assertEquals("north", 3, p2.getEastNorth().north(), 0.01);
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| 135 | }
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[10398] | 136 |
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| 137 | /**
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| 138 | * Test {@link MapViewState#getAffineTransform()}
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| 139 | */
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| 140 | @Test
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| 141 | public void testGetAffineTransform() {
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| 142 | for (EastNorth en : Arrays.asList(new EastNorth(100, 100), new EastNorth(0, 0), new EastNorth(300, 200),
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| 143 | new EastNorth(-1, -2.5))) {
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| 144 | MapViewPoint should = state.getPointFor(en);
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| 145 | AffineTransform transform = state.getAffineTransform();
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| 146 | Point2D result = transform.transform(new Point2D.Double(en.getX(), en.getY()), null);
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| 147 |
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| 148 | assertEquals("x", should.getInViewX(), result.getX(), 0.01);
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| 149 | assertEquals("y", should.getInViewY(), result.getY(), 0.01);
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| 150 | }
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| 151 | }
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[10462] | 152 |
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| 153 | /**
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[10867] | 154 | * Test {@link MapViewState#OUTSIDE_BOTTOM} and similar constants.
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| 155 | */
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| 156 | @Test
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| 157 | public void testOutsideFlags() {
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| 158 | assertEquals(1, Integer.bitCount(MapViewState.OUTSIDE_BOTTOM));
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| 159 | assertEquals(1, Integer.bitCount(MapViewState.OUTSIDE_TOP));
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| 160 | assertEquals(1, Integer.bitCount(MapViewState.OUTSIDE_LEFT));
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| 161 | assertEquals(1, Integer.bitCount(MapViewState.OUTSIDE_RIGHT));
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| 162 | assertEquals(4, Integer.bitCount(MapViewState.OUTSIDE_BOTTOM | MapViewState.OUTSIDE_TOP
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| 163 | | MapViewState.OUTSIDE_LEFT | MapViewState.OUTSIDE_RIGHT));
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| 164 | }
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| 165 |
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| 166 | /**
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| 167 | * Test {@link MapViewPoint#getOutsideRectangleFlags(MapViewRectangle)}
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| 168 | */
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| 169 | @Test
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| 170 | public void testPointGetOutsideRectangleFlags() {
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| 171 | MapViewRectangle rect = state.getForView(0, 0).rectTo(state.getForView(10, 10));
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| 172 | assertEquals(0, state.getForView(1, 1).getOutsideRectangleFlags(rect));
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| 173 | assertEquals(0, state.getForView(1, 5).getOutsideRectangleFlags(rect));
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| 174 | assertEquals(0, state.getForView(9, 1).getOutsideRectangleFlags(rect));
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| 175 | assertEquals(0, state.getForView(10 - 1e-10, 1e-10).getOutsideRectangleFlags(rect));
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| 176 | assertEquals(0, state.getForView(10 - 1e-10, 10 - 1e-10).getOutsideRectangleFlags(rect));
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| 177 |
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| 178 |
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| 179 | assertEquals(MapViewState.OUTSIDE_TOP, state.getForView(1, -11).getOutsideRectangleFlags(rect));
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| 180 | assertEquals(MapViewState.OUTSIDE_TOP, state.getForView(1, -1e20).getOutsideRectangleFlags(rect));
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| 181 |
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| 182 | assertEquals(MapViewState.OUTSIDE_BOTTOM, state.getForView(1, 11).getOutsideRectangleFlags(rect));
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| 183 | assertEquals(MapViewState.OUTSIDE_BOTTOM, state.getForView(1, 1e20).getOutsideRectangleFlags(rect));
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| 184 |
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| 185 | assertEquals(MapViewState.OUTSIDE_LEFT, state.getForView(-11, 1).getOutsideRectangleFlags(rect));
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| 186 | assertEquals(MapViewState.OUTSIDE_LEFT, state.getForView(-1e20, 1).getOutsideRectangleFlags(rect));
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| 187 | assertEquals(MapViewState.OUTSIDE_RIGHT, state.getForView(11, 1).getOutsideRectangleFlags(rect));
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| 188 | assertEquals(MapViewState.OUTSIDE_RIGHT, state.getForView(1e20, 1).getOutsideRectangleFlags(rect));
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| 189 |
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| 190 | assertEquals(MapViewState.OUTSIDE_RIGHT | MapViewState.OUTSIDE_TOP, state.getForView(11, -11).getOutsideRectangleFlags(rect));
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| 191 | assertEquals(MapViewState.OUTSIDE_RIGHT | MapViewState.OUTSIDE_BOTTOM, state.getForView(11, 11).getOutsideRectangleFlags(rect));
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| 192 | assertEquals(MapViewState.OUTSIDE_LEFT | MapViewState.OUTSIDE_TOP, state.getForView(-11, -11).getOutsideRectangleFlags(rect));
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| 193 | assertEquals(MapViewState.OUTSIDE_LEFT | MapViewState.OUTSIDE_BOTTOM, state.getForView(-11, 11).getOutsideRectangleFlags(rect));
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| 194 | }
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| 195 |
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| 196 | /**
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| 197 | * Test {@link MapViewPoint#oneNormInView(MapViewPoint)}
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| 198 | */
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| 199 | @Test
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| 200 | public void testPointOneNormInView() {
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| 201 | MapViewPoint p = state.getForView(5, 15);
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| 202 | assertEquals(0, p.oneNormInView(p), 1e-10);
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| 203 | assertEquals(6, p.oneNormInView(state.getForView(-1, 15)), 1e-10);
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| 204 | assertEquals(5, p.oneNormInView(state.getForView(5, 20)), 1e-10);
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| 205 | assertEquals(22, p.oneNormInView(state.getForView(-1, -1)), 1e-10);
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| 206 | assertEquals(40, p.oneNormInView(state.getForView(30, 30)), 1e-10);
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| 207 | }
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| 208 |
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| 209 | /**
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[10462] | 210 | * Test {@link MapViewState.MapViewViewPoint#toString()} and {@link MapViewState.MapViewEastNorthPoint#toString()}
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| 211 | */
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| 212 | @Test
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| 213 | public void testToString() {
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| 214 | assertEquals("MapViewViewPoint [x=1.0, y=2.0]",
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| 215 | state.getForView(1, 2).toString());
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| 216 | assertEquals("MapViewEastNorthPoint [eastNorth=EastNorth[e=0.0, n=0.0]]",
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| 217 | state.getPointFor(new EastNorth(0, 0)).toString());
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| 218 | }
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[10343] | 219 | }
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