1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.download;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.Color;
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7 | import java.awt.Dimension;
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8 | import java.awt.GridBagLayout;
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9 | import java.awt.event.ActionEvent;
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10 | import java.awt.event.ActionListener;
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11 | import java.awt.event.FocusAdapter;
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12 | import java.awt.event.FocusEvent;
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13 | import java.awt.event.MouseAdapter;
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14 | import java.awt.event.MouseEvent;
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15 |
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16 | import javax.swing.BorderFactory;
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17 | import javax.swing.JButton;
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18 | import javax.swing.JLabel;
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19 | import javax.swing.JPanel;
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20 | import javax.swing.UIManager;
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21 | import javax.swing.border.Border;
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22 | import javax.swing.event.DocumentEvent;
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23 | import javax.swing.event.DocumentListener;
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24 | import javax.swing.text.JTextComponent;
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25 |
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26 | import org.openstreetmap.josm.data.Bounds;
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27 | import org.openstreetmap.josm.data.coor.CoordinateFormat;
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28 | import org.openstreetmap.josm.data.coor.LatLon;
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29 | import org.openstreetmap.josm.gui.widgets.JosmTextArea;
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30 | import org.openstreetmap.josm.gui.widgets.JosmTextField;
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31 | import org.openstreetmap.josm.tools.GBC;
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32 | import org.openstreetmap.josm.tools.OsmUrlToBounds;
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33 |
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34 | /**
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35 | * Bounding box selector.
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36 | *
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37 | * Provides max/min lat/lon input fields as well as the "URL from www.openstreetmap.org" text field.
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38 | *
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39 | * @author Frederik Ramm
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40 | *
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41 | */
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42 | public class BoundingBoxSelection implements DownloadSelection {
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43 |
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44 | private JosmTextField[] latlon;
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45 | private final JosmTextArea tfOsmUrl = new JosmTextArea();
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46 | private final JosmTextArea showUrl = new JosmTextArea();
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47 | private DownloadDialog parent;
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48 |
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49 | protected void registerBoundingBoxBuilder() {
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50 | BoundingBoxBuilder bboxbuilder = new BoundingBoxBuilder();
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51 | for (JosmTextField ll : latlon) {
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52 | ll.addFocusListener(bboxbuilder);
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53 | ll.addActionListener(bboxbuilder);
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54 | }
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55 | }
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56 |
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57 | protected void buildDownloadAreaInputFields() {
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58 | latlon = new JosmTextField[4];
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59 | for (int i = 0; i < 4; i++) {
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60 | latlon[i] = new JosmTextField(11);
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61 | latlon[i].setMinimumSize(new Dimension(100, new JosmTextField().getMinimumSize().height));
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62 | latlon[i].addFocusListener(new SelectAllOnFocusHandler(latlon[i]));
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63 | }
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64 | LatValueChecker latChecker = new LatValueChecker(latlon[0]);
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65 | latlon[0].addFocusListener(latChecker);
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66 | latlon[0].addActionListener(latChecker);
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67 |
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68 | latChecker = new LatValueChecker(latlon[2]);
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69 | latlon[2].addFocusListener(latChecker);
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70 | latlon[2].addActionListener(latChecker);
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71 |
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72 | LonValueChecker lonChecker = new LonValueChecker(latlon[1]);
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73 | latlon[1].addFocusListener(lonChecker);
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74 | latlon[1].addActionListener(lonChecker);
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75 |
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76 | lonChecker = new LonValueChecker(latlon[3]);
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77 | latlon[3].addFocusListener(lonChecker);
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78 | latlon[3].addActionListener(lonChecker);
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79 |
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80 | registerBoundingBoxBuilder();
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81 | }
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82 |
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83 | @Override
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84 | public void addGui(final DownloadDialog gui) {
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85 | buildDownloadAreaInputFields();
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86 | final JPanel dlg = new JPanel(new GridBagLayout());
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87 |
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88 | tfOsmUrl.getDocument().addDocumentListener(new OsmUrlRefresher());
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89 |
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90 | // select content on receiving focus. this seems to be the default in the
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91 | // windows look+feel but not for others. needs invokeLater to avoid strange
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92 | // side effects that will cancel out the newly made selection otherwise.
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93 | tfOsmUrl.addFocusListener(new SelectAllOnFocusHandler(tfOsmUrl));
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94 | tfOsmUrl.setLineWrap(true);
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95 | tfOsmUrl.setBorder(latlon[0].getBorder());
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96 |
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97 | dlg.add(new JLabel(tr("min lat")), GBC.std().insets(10, 20, 5, 0));
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98 | dlg.add(latlon[0], GBC.std().insets(0, 20, 0, 0));
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99 | dlg.add(new JLabel(tr("min lon")), GBC.std().insets(10, 20, 5, 0));
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100 | dlg.add(latlon[1], GBC.eol().insets(0, 20, 0, 0));
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101 | dlg.add(new JLabel(tr("max lat")), GBC.std().insets(10, 0, 5, 0));
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102 | dlg.add(latlon[2], GBC.std());
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103 | dlg.add(new JLabel(tr("max lon")), GBC.std().insets(10, 0, 5, 0));
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104 | dlg.add(latlon[3], GBC.eol());
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105 |
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106 | final JButton btnClear = new JButton(tr("Clear textarea"));
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107 | btnClear.addMouseListener(new MouseAdapter() {
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108 | @Override
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109 | public void mouseClicked(MouseEvent arg0) {
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110 | tfOsmUrl.setText("");
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111 | }
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112 | });
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113 | dlg.add(btnClear, GBC.eol().insets(10, 20, 0, 0));
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114 |
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115 | dlg.add(new JLabel(tr("URL from www.openstreetmap.org (you can paste an URL here to download the area)")),
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116 | GBC.eol().insets(10, 5, 5, 0));
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117 | dlg.add(tfOsmUrl, GBC.eop().insets(10, 0, 5, 0).fill());
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118 | dlg.add(showUrl, GBC.eop().insets(10, 0, 5, 5));
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119 | showUrl.setEditable(false);
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120 | showUrl.setBackground(dlg.getBackground());
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121 | showUrl.addFocusListener(new SelectAllOnFocusHandler(showUrl));
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122 |
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123 | gui.addDownloadAreaSelector(dlg, tr("Bounding Box"));
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124 | this.parent = gui;
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125 | }
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126 |
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127 | @Override
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128 | public void setDownloadArea(Bounds area) {
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129 | updateBboxFields(area);
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130 | updateUrl(area);
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131 | }
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132 |
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133 | /**
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134 | * Replies the download area.
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135 | * @return The download area
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136 | */
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137 | public Bounds getDownloadArea() {
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138 | double[] values = new double[4];
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139 | for (int i = 0; i < 4; i++) {
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140 | try {
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141 | values[i] = Double.parseDouble(latlon[i].getText());
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142 | } catch (NumberFormatException x) {
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143 | return null;
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144 | }
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145 | }
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146 | if (!LatLon.isValidLat(values[0]) || !LatLon.isValidLon(values[1]))
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147 | return null;
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148 | if (!LatLon.isValidLat(values[2]) || !LatLon.isValidLon(values[3]))
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149 | return null;
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150 | return new Bounds(values);
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151 | }
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152 |
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153 | private boolean parseURL(DownloadDialog gui) {
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154 | Bounds b = OsmUrlToBounds.parse(tfOsmUrl.getText());
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155 | if (b == null) return false;
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156 | gui.boundingBoxChanged(b, this);
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157 | updateBboxFields(b);
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158 | updateUrl(b);
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159 | return true;
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160 | }
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161 |
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162 | private void updateBboxFields(Bounds area) {
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163 | if (area == null) return;
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164 | latlon[0].setText(area.getMin().latToString(CoordinateFormat.DECIMAL_DEGREES));
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165 | latlon[1].setText(area.getMin().lonToString(CoordinateFormat.DECIMAL_DEGREES));
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166 | latlon[2].setText(area.getMax().latToString(CoordinateFormat.DECIMAL_DEGREES));
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167 | latlon[3].setText(area.getMax().lonToString(CoordinateFormat.DECIMAL_DEGREES));
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168 | for (JosmTextField tf: latlon) {
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169 | resetErrorMessage(tf);
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170 | }
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171 | }
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172 |
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173 | private void updateUrl(Bounds area) {
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174 | if (area == null) return;
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175 | showUrl.setText(OsmUrlToBounds.getURL(area));
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176 | }
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177 |
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178 | private final Border errorBorder = BorderFactory.createLineBorder(Color.RED, 1);
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179 |
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180 | protected void setErrorMessage(JosmTextField tf, String msg) {
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181 | tf.setBorder(errorBorder);
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182 | tf.setToolTipText(msg);
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183 | }
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184 |
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185 | protected void resetErrorMessage(JosmTextField tf) {
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186 | tf.setBorder(UIManager.getBorder("TextField.border"));
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187 | tf.setToolTipText(null);
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188 | }
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189 |
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190 | class LatValueChecker extends FocusAdapter implements ActionListener {
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191 | private final JosmTextField tfLatValue;
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192 |
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193 | LatValueChecker(JosmTextField tfLatValue) {
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194 | this.tfLatValue = tfLatValue;
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195 | }
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196 |
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197 | protected void check() {
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198 | double value = 0;
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199 | try {
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200 | value = Double.parseDouble(tfLatValue.getText());
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201 | } catch (NumberFormatException ex) {
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202 | setErrorMessage(tfLatValue, tr("The string ''{0}'' is not a valid double value.", tfLatValue.getText()));
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203 | return;
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204 | }
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205 | if (!LatLon.isValidLat(value)) {
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206 | setErrorMessage(tfLatValue, tr("Value for latitude in range [-90,90] required.", tfLatValue.getText()));
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207 | return;
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208 | }
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209 | resetErrorMessage(tfLatValue);
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210 | }
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211 |
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212 | @Override
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213 | public void focusLost(FocusEvent e) {
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214 | check();
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215 | }
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216 |
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217 | @Override
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218 | public void actionPerformed(ActionEvent e) {
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219 | check();
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220 | }
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221 | }
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222 |
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223 | class LonValueChecker extends FocusAdapter implements ActionListener {
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224 | private final JosmTextField tfLonValue;
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225 |
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226 | LonValueChecker(JosmTextField tfLonValue) {
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227 | this.tfLonValue = tfLonValue;
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228 | }
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229 |
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230 | protected void check() {
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231 | double value = 0;
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232 | try {
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233 | value = Double.parseDouble(tfLonValue.getText());
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234 | } catch (NumberFormatException ex) {
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235 | setErrorMessage(tfLonValue, tr("The string ''{0}'' is not a valid double value.", tfLonValue.getText()));
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236 | return;
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237 | }
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238 | if (!LatLon.isValidLon(value)) {
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239 | setErrorMessage(tfLonValue, tr("Value for longitude in range [-180,180] required.", tfLonValue.getText()));
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240 | return;
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241 | }
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242 | resetErrorMessage(tfLonValue);
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243 | }
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244 |
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245 | @Override
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246 | public void focusLost(FocusEvent e) {
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247 | check();
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248 | }
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249 |
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250 | @Override
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251 | public void actionPerformed(ActionEvent e) {
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252 | check();
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253 | }
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254 | }
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255 |
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256 | static class SelectAllOnFocusHandler extends FocusAdapter {
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257 | private final JTextComponent tfTarget;
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258 |
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259 | SelectAllOnFocusHandler(JTextComponent tfTarget) {
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260 | this.tfTarget = tfTarget;
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261 | }
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262 |
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263 | @Override
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264 | public void focusGained(FocusEvent e) {
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265 | tfTarget.selectAll();
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266 | }
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267 | }
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268 |
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269 | class OsmUrlRefresher implements DocumentListener {
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270 | @Override
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271 | public void changedUpdate(DocumentEvent e) {
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272 | parseURL(parent);
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273 | }
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274 |
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275 | @Override
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276 | public void insertUpdate(DocumentEvent e) {
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277 | parseURL(parent);
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278 | }
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279 |
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280 | @Override
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281 | public void removeUpdate(DocumentEvent e) {
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282 | parseURL(parent);
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283 | }
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284 | }
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285 |
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286 | class BoundingBoxBuilder extends FocusAdapter implements ActionListener {
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287 | protected Bounds build() {
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288 | double minlon, minlat, maxlon, maxlat;
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289 | try {
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290 | minlat = Double.parseDouble(latlon[0].getText().trim());
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291 | minlon = Double.parseDouble(latlon[1].getText().trim());
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292 | maxlat = Double.parseDouble(latlon[2].getText().trim());
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293 | maxlon = Double.parseDouble(latlon[3].getText().trim());
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294 | } catch (NumberFormatException e) {
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295 | return null;
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296 | }
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297 | if (!LatLon.isValidLon(minlon) || !LatLon.isValidLon(maxlon)
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298 | || !LatLon.isValidLat(minlat) || !LatLon.isValidLat(maxlat))
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299 | return null;
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300 | if (minlon > maxlon)
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301 | return null;
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302 | if (minlat > maxlat)
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303 | return null;
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304 | return new Bounds(minlat, minlon, maxlat, maxlon);
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305 | }
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306 |
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307 | protected void refreshBounds() {
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308 | Bounds b = build();
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309 | parent.boundingBoxChanged(b, BoundingBoxSelection.this);
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310 | }
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311 |
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312 | @Override
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313 | public void focusLost(FocusEvent e) {
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314 | refreshBounds();
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315 | }
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316 |
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317 | @Override
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318 | public void actionPerformed(ActionEvent e) {
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319 | refreshBounds();
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320 | }
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321 | }
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322 | }
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