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 | import static org.junit.Assert.assertThat;
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6 |
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7 | import java.awt.Point;
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8 | import java.awt.Rectangle;
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9 | import java.awt.geom.Point2D;
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10 |
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11 | import javax.swing.JPanel;
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12 |
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13 | import org.CustomMatchers;
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14 | import org.junit.Before;
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15 | import org.junit.Rule;
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16 | import org.junit.Test;
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17 | import org.openstreetmap.josm.Main;
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18 | import org.openstreetmap.josm.data.Bounds;
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19 | import org.openstreetmap.josm.data.ProjectionBounds;
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20 | import org.openstreetmap.josm.data.coor.EastNorth;
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21 | import org.openstreetmap.josm.data.coor.LatLon;
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22 | import org.openstreetmap.josm.gui.util.GuiHelper;
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23 | import org.openstreetmap.josm.testutils.JOSMTestRules;
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24 |
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25 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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26 |
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27 | /**
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28 | * Some tests for the {@link NavigatableComponent} class.
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29 | * @author Michael Zangl
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30 | *
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31 | */
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32 | public class NavigatableComponentTest {
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33 |
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34 | private final class NavigatableComponentMock extends NavigatableComponent {
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35 | @Override
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36 | public Point getLocationOnScreen() {
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37 | return new Point(30, 40);
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38 | }
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39 |
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40 | @Override
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41 | protected boolean isVisibleOnScreen() {
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42 | return true;
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43 | }
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44 | }
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45 |
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46 | private static final int HEIGHT = 200;
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47 | private static final int WIDTH = 300;
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48 | private NavigatableComponent component;
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49 |
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50 | /**
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51 | * We need the projection for coordinate conversions.
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52 | */
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53 | @Rule
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54 | @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
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55 | public JOSMTestRules test = new JOSMTestRules().preferences().platform().projection();
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56 |
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57 | /**
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58 | * Create a new, fresh {@link NavigatableComponent}
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59 | */
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60 | @Before
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61 | public void setUp() {
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62 | component = new NavigatableComponentMock();
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63 | component.setBounds(new Rectangle(WIDTH, HEIGHT));
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64 | // wait for the event to be propagated.
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65 | GuiHelper.runInEDTAndWait(new Runnable() {
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66 | @Override
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67 | public void run() {
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68 | }
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69 | });
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70 | component.setVisible(true);
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71 | JPanel parent = new JPanel();
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72 | parent.add(component);
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73 | component.updateLocationState();
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74 | }
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75 |
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76 | /**
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77 | * Test if the default scale was set correctly.
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78 | */
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79 | @Test
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80 | public void testDefaultScale() {
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81 | assertEquals(Main.getProjection().getDefaultZoomInPPD(), component.getScale(), 0.00001);
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82 | }
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83 |
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84 | /**
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85 | * Tests {@link NavigatableComponent#getPoint2D(EastNorth)}
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86 | */
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87 | @Test
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88 | public void testPoint2DEastNorth() {
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89 | assertThat(component.getPoint2D((EastNorth) null), CustomMatchers.is(new Point2D.Double()));
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90 | Point2D shouldBeCenter = component.getPoint2D(component.getCenter());
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91 | assertThat(shouldBeCenter, CustomMatchers.is(new Point2D.Double(WIDTH / 2, HEIGHT / 2)));
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92 |
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93 | EastNorth testPoint = component.getCenter().add(300 * component.getScale(), 200 * component.getScale());
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94 | Point2D testPointConverted = component.getPoint2D(testPoint);
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95 | assertThat(testPointConverted, CustomMatchers.is(new Point2D.Double(WIDTH / 2 + 300, HEIGHT / 2 - 200)));
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96 | }
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97 |
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98 | /**
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99 | * TODO: Implement this test.
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100 | */
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101 | @Test
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102 | public void testPoint2DLatLon() {
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103 | assertThat(component.getPoint2D((LatLon) null), CustomMatchers.is(new Point2D.Double()));
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104 | // TODO: Really test this.
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105 | }
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106 |
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107 | /**
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108 | * Tests {@link NavigatableComponent#zoomTo(LatLon)}
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109 | */
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110 | @Test
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111 | public void testZoomToLatLon() {
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112 | component.zoomTo(new LatLon(10, 10));
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113 | Point2D shouldBeCenter = component.getPoint2D(new LatLon(10, 10));
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114 | assertThat(shouldBeCenter, CustomMatchers.is(new Point2D.Double(WIDTH / 2, HEIGHT / 2)));
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115 | }
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116 |
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117 | /**
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118 | * Tests {@link NavigatableComponent#zoomToFactor(double)} and {@link NavigatableComponent#zoomToFactor(EastNorth, double)}
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119 | */
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120 | @Test
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121 | public void testZoomToFactor() {
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122 | EastNorth center = component.getCenter();
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123 | double initialScale = component.getScale();
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124 |
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125 | // zoomToFactor(double)
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126 | component.zoomToFactor(0.5);
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127 | assertEquals(initialScale / 2, component.getScale(), 0.00000001);
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128 | assertEquals(center, component.getCenter());
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129 | component.zoomToFactor(2);
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130 | assertEquals(initialScale, component.getScale(), 0.00000001);
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131 | assertEquals(center, component.getCenter());
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132 |
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133 | // zoomToFactor(EastNorth, double)
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134 | EastNorth newCenter = new EastNorth(10, 20);
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135 | component.zoomToFactor(newCenter, 0.5);
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136 | assertEquals(initialScale / 2, component.getScale(), 0.00000001);
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137 | assertEquals(newCenter, component.getCenter());
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138 | component.zoomToFactor(newCenter, 2);
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139 | assertEquals(initialScale, component.getScale(), 0.00000001);
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140 | assertEquals(newCenter, component.getCenter());
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141 | }
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142 |
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143 | /**
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144 | * Tests {@link NavigatableComponent#getEastNorth(int, int)}
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145 | */
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146 | @Test
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147 | public void testGetEastNorth() {
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148 | EastNorth center = component.getCenter();
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149 | assertThat(component.getEastNorth(WIDTH / 2, HEIGHT / 2), CustomMatchers.is(center));
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150 |
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151 | EastNorth testPoint = component.getCenter().add(WIDTH * component.getScale(), HEIGHT * component.getScale());
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152 | assertThat(component.getEastNorth(3 * WIDTH / 2, -HEIGHT / 2), CustomMatchers.is(testPoint));
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153 | }
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154 |
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155 | /**
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156 | * Tests {@link NavigatableComponent#zoomToFactor(double, double, double)}
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157 | */
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158 | @Test
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159 | public void testZoomToFactorCenter() {
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160 | // zoomToFactor(double, double, double)
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161 | // assumes getEastNorth works as expected
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162 | EastNorth testPoint1 = component.getEastNorth(0, 0);
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163 | EastNorth testPoint2 = component.getEastNorth(200, 150);
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164 | double initialScale = component.getScale();
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165 |
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166 | component.zoomToFactor(0, 0, 0.5);
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167 | assertEquals(initialScale / 2, component.getScale(), 0.00000001);
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168 | assertThat(component.getEastNorth(0, 0), CustomMatchers.is(testPoint1));
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169 | component.zoomToFactor(0, 0, 2);
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170 | assertEquals(initialScale, component.getScale(), 0.00000001);
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171 | assertThat(component.getEastNorth(0, 0), CustomMatchers.is(testPoint1));
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172 |
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173 | component.zoomToFactor(200, 150, 0.5);
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174 | assertEquals(initialScale / 2, component.getScale(), 0.00000001);
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175 | assertThat(component.getEastNorth(200, 150), CustomMatchers.is(testPoint2));
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176 | component.zoomToFactor(200, 150, 2);
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177 | assertEquals(initialScale, component.getScale(), 0.00000001);
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178 | assertThat(component.getEastNorth(200, 150), CustomMatchers.is(testPoint2));
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179 |
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180 | }
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181 |
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182 | /**
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183 | * Tests {@link NavigatableComponent#getProjectionBounds()}
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184 | */
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185 | @Test
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186 | public void testGetProjectionBounds() {
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187 | ProjectionBounds bounds = component.getProjectionBounds();
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188 | assertThat(bounds.getCenter(), CustomMatchers.is(component.getCenter()));
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189 |
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190 | assertThat(bounds.getMin(), CustomMatchers.is(component.getEastNorth(0, HEIGHT)));
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191 | assertThat(bounds.getMax(), CustomMatchers.is(component.getEastNorth(WIDTH, 0)));
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192 | }
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193 |
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194 | /**
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195 | * Tests {@link NavigatableComponent#getRealBounds()}
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196 | */
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197 | @Test
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198 | public void testGetRealBounds() {
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199 | Bounds bounds = component.getRealBounds();
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200 | assertThat(bounds.getCenter(), CustomMatchers.is(component.getLatLon(WIDTH / 2, HEIGHT / 2)));
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201 |
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202 | assertThat(bounds.getMin(), CustomMatchers.is(component.getLatLon(0, HEIGHT)));
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203 | assertThat(bounds.getMax(), CustomMatchers.is(component.getLatLon(WIDTH, 0)));
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204 | }
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205 |
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206 | }
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