1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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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.Toolkit;
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10 | import java.awt.datatransfer.DataFlavor;
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11 | import java.awt.datatransfer.FlavorEvent;
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12 | import java.awt.datatransfer.FlavorListener;
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13 | import java.awt.datatransfer.Transferable;
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14 | import java.awt.datatransfer.UnsupportedFlavorException;
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15 | import java.awt.event.ActionEvent;
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16 | import java.awt.event.ActionListener;
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17 | import java.awt.event.FocusAdapter;
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18 | import java.awt.event.FocusEvent;
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19 | import java.awt.event.MouseAdapter;
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20 | import java.awt.event.MouseEvent;
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21 | import java.io.IOException;
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22 |
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23 | import javax.swing.AbstractAction;
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24 | import javax.swing.BorderFactory;
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25 | import javax.swing.JLabel;
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26 | import javax.swing.JPanel;
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27 | import javax.swing.JPopupMenu;
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28 | import javax.swing.JTextArea;
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29 | import javax.swing.JTextField;
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30 | import javax.swing.UIManager;
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31 | import javax.swing.border.Border;
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32 | import javax.swing.event.DocumentEvent;
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33 | import javax.swing.event.DocumentListener;
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34 | import javax.swing.text.JTextComponent;
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35 |
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36 | import org.openstreetmap.josm.data.Bounds;
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37 | import org.openstreetmap.josm.data.coor.LatLon;
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38 | import org.openstreetmap.josm.tools.GBC;
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39 | import org.openstreetmap.josm.tools.ImageProvider;
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40 | import org.openstreetmap.josm.tools.OsmUrlToBounds;
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41 |
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42 | /**
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43 | * Bounding box selector.
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44 | *
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45 | * Provides max/min lat/lon input fields as well as the "URL from www.openstreetmap.org" text field.
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46 | *
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47 | * @author Frederik Ramm <frederik@remote.org>
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48 | *
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49 | */
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50 | public class BoundingBoxSelection implements DownloadSelection {
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51 |
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52 | private JTextField[] latlon = null;
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53 | private final JTextArea tfOsmUrl = new JTextArea();
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54 | private final JTextArea showUrl = new JTextArea();
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55 | private DownloadDialog parent;
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56 |
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57 | protected void registerBoundingBoxBuilder() {
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58 | BoundingBoxBuilder bboxbuilder = new BoundingBoxBuilder();
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59 | for (int i = 0;i < latlon.length; i++) {
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60 | latlon[i].addFocusListener(bboxbuilder);
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61 | latlon[i].addActionListener(bboxbuilder);
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62 | }
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63 | }
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64 |
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65 | protected void buildDownloadAreaInputFields() {
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66 | latlon = new JTextField[4];
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67 | for(int i=0; i< 4; i++) {
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68 | latlon[i] = new JTextField(11);
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69 | latlon[i].setMinimumSize(new Dimension(100,new JTextField().getMinimumSize().height));
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70 | latlon[i].addFocusListener(new SelectAllOnFocusHandler(latlon[i]));
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71 | }
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72 | LatValueChecker latChecker = new LatValueChecker(latlon[0]);
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73 | latlon[0].addFocusListener(latChecker);
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74 | latlon[0].addActionListener(latChecker);
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75 |
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76 | latChecker = new LatValueChecker(latlon[2]);
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77 | latlon[2].addFocusListener(latChecker);
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78 | latlon[2].addActionListener(latChecker);
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79 |
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80 | LonValueChecker lonChecker = new LonValueChecker(latlon[1]);
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81 | latlon[1].addFocusListener(lonChecker);
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82 | latlon[1].addActionListener(lonChecker);
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83 |
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84 | lonChecker = new LonValueChecker(latlon[3]);
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85 | latlon[3].addFocusListener(lonChecker);
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86 | latlon[3].addActionListener(lonChecker);
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87 |
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88 | registerBoundingBoxBuilder();
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89 | }
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90 |
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91 | public void addGui(final DownloadDialog gui) {
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92 | buildDownloadAreaInputFields();
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93 | final JPanel dlg = new JPanel(new GridBagLayout());
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94 |
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95 | tfOsmUrl.getDocument().addDocumentListener(new OsmUrlRefresher());
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96 |
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97 | // select content on receiving focus. this seems to be the default in the
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98 | // windows look+feel but not for others. needs invokeLater to avoid strange
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99 | // side effects that will cancel out the newly made selection otherwise.
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100 | tfOsmUrl.addFocusListener(new SelectAllOnFocusHandler(tfOsmUrl));
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101 | tfOsmUrl.setLineWrap(true);
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102 | tfOsmUrl.setBorder(latlon[0].getBorder());
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103 |
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104 | dlg.add(new JLabel(tr("min lat")), GBC.std().insets(10,20,5,0));
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105 | dlg.add(latlon[0], GBC.std().insets(0,20,0,0));
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106 | dlg.add(new JLabel(tr("min lon")), GBC.std().insets(10,20,5,0));
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107 | dlg.add(latlon[1], GBC.eol().insets(0,20,0,0));
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108 | dlg.add(new JLabel(tr("max lat")), GBC.std().insets(10,0,5,0));
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109 | dlg.add(latlon[2], GBC.std());
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110 | dlg.add(new JLabel(tr("max lon")), GBC.std().insets(10,0,5,0));
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111 | dlg.add(latlon[3], GBC.eol());
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112 |
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113 | dlg.add(new JLabel(tr("URL from www.openstreetmap.org (you can paste an URL here to download the area)")), GBC.eol().insets(10,20,5,0));
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114 | dlg.add(tfOsmUrl, GBC.eop().insets(10,0,5,0).fill());
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115 | tfOsmUrl.addMouseListener(
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116 | new MouseAdapter() {
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117 | @Override
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118 | public void mousePressed(MouseEvent e) {
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119 | checkPopup(e);
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120 | }
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121 |
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122 | @Override
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123 | public void mouseClicked(MouseEvent e) {
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124 | checkPopup(e);
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125 | }
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126 |
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127 | @Override
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128 | public void mouseReleased(MouseEvent e) {
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129 | checkPopup(e);
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130 | }
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131 |
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132 | private void checkPopup(MouseEvent e) {
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133 | if (e.isPopupTrigger()) {
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134 | OsmUrlPopup popup = new OsmUrlPopup();
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135 | popup.show(tfOsmUrl, e.getX(), e.getY());
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136 | }
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137 | }
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138 | }
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139 | );
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140 | dlg.add(showUrl, GBC.eop().insets(10,0,5,5));
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141 | showUrl.setEditable(false);
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142 | showUrl.setBackground(dlg.getBackground());
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143 | showUrl.addFocusListener(new SelectAllOnFocusHandler(showUrl));
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144 |
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145 | gui.addDownloadAreaSelector(dlg, tr("Bounding Box"));
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146 | this.parent = gui;
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147 | }
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148 |
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149 | public void setDownloadArea(Bounds area) {
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150 | updateBboxFields(area);
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151 | updateUrl(area);
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152 | }
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153 |
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154 | public Bounds getDownloadArea() {
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155 | double[] values = new double[4];
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156 | for (int i=0; i < 4; i++) {
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157 | try {
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158 | values[i] = Double.parseDouble(latlon[i].getText());
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159 | } catch(NumberFormatException x) {
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160 | return null;
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161 | }
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162 | }
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163 | if (!LatLon.isValidLat(values[0]) || !LatLon.isValidLon(values[1]))
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164 | return null;
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165 | if (!LatLon.isValidLat(values[2]) || !LatLon.isValidLon(values[3]))
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166 | return null;
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167 | return new Bounds(values);
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168 | }
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169 |
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170 | private boolean parseURL(DownloadDialog gui) {
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171 | Bounds b = OsmUrlToBounds.parse(tfOsmUrl.getText());
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172 | if(b == null) return false;
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173 | gui.boundingBoxChanged(b,BoundingBoxSelection.this);
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174 | updateBboxFields(b);
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175 | updateUrl(b);
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176 | return true;
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177 | }
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178 |
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179 | private void updateBboxFields(Bounds area) {
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180 | if (area == null) return;
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181 | latlon[0].setText(Double.toString(area.getMin().lat()));
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182 | latlon[1].setText(Double.toString(area.getMin().lon()));
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183 | latlon[2].setText(Double.toString(area.getMax().lat()));
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184 | latlon[3].setText(Double.toString(area.getMax().lon()));
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185 | for (JTextField tf: latlon) {
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186 | resetErrorMessage(tf);
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187 | }
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188 | }
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189 |
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190 | private void updateUrl(Bounds area) {
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191 | if (area == null) return;
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192 | showUrl.setText(OsmUrlToBounds.getURL(area));
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193 | }
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194 |
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195 | private Border errorBorder = BorderFactory.createLineBorder(Color.RED, 1);
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196 |
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197 | protected void setErrorMessage(JTextField tf, String msg) {
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198 | tf.setBorder(errorBorder);
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199 | tf.setToolTipText(msg);
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200 | }
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201 |
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202 | protected void resetErrorMessage(JTextField tf) {
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203 | tf.setBorder(UIManager.getBorder("TextField.border"));
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204 | tf.setToolTipText("");
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205 | }
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206 |
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207 | class LatValueChecker extends FocusAdapter implements ActionListener{
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208 | private JTextField tfLatValue;
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209 |
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210 | public LatValueChecker(JTextField tfLatValue) {
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211 | this.tfLatValue = tfLatValue;
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212 | }
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213 |
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214 | protected void check() {
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215 | double value = 0;
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216 | try {
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217 | value = Double.parseDouble(tfLatValue.getText());
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218 | } catch(NumberFormatException ex) {
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219 | setErrorMessage(tfLatValue,tr("The string ''{0}'' isn''t a valid double value.", tfLatValue.getText()));
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220 | return;
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221 | }
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222 | if (!LatLon.isValidLat(value)) {
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223 | setErrorMessage(tfLatValue,tr("Value for latitude in range [-90,90] required.", tfLatValue.getText()));
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224 | return;
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225 | }
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226 | resetErrorMessage(tfLatValue);
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227 | }
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228 |
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229 | @Override
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230 | public void focusLost(FocusEvent e) {
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231 | check();
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232 | }
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233 |
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234 | public void actionPerformed(ActionEvent e) {
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235 | check();
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236 | }
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237 | }
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238 |
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239 | class LonValueChecker extends FocusAdapter implements ActionListener {
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240 | private JTextField tfLonValue;
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241 |
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242 | public LonValueChecker(JTextField tfLonValue) {
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243 | this.tfLonValue = tfLonValue;
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244 | }
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245 |
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246 | protected void check() {
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247 | double value = 0;
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248 | try {
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249 | value = Double.parseDouble(tfLonValue.getText());
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250 | } catch(NumberFormatException ex) {
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251 | setErrorMessage(tfLonValue,tr("The string ''{0}'' isn''t a valid double value.", tfLonValue.getText()));
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252 | return;
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253 | }
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254 | if (!LatLon.isValidLon(value)) {
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255 | setErrorMessage(tfLonValue,tr("Value for longitude in range [-180,180] required.", tfLonValue.getText()));
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256 | return;
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257 | }
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258 | resetErrorMessage(tfLonValue);
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259 | }
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260 |
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261 | @Override
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262 | public void focusLost(FocusEvent e) {
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263 | check();
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264 | }
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265 |
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266 | public void actionPerformed(ActionEvent e) {
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267 | check();
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268 | }
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269 | }
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270 |
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271 | static class SelectAllOnFocusHandler extends FocusAdapter {
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272 | private JTextComponent tfTarget;
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273 | public SelectAllOnFocusHandler(JTextComponent tfTarget) {
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274 | this.tfTarget = tfTarget;
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275 | }
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276 |
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277 | @Override
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278 | public void focusGained(FocusEvent e) {
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279 | tfTarget.selectAll();
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280 | }
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281 | }
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282 |
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283 | class OsmUrlRefresher implements DocumentListener {
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284 | public void changedUpdate(DocumentEvent e) { parseURL(parent); }
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285 | public void insertUpdate(DocumentEvent e) { parseURL(parent); }
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286 | public void removeUpdate(DocumentEvent e) { parseURL(parent); }
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287 | }
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288 |
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289 | class PasteUrlAction extends AbstractAction implements FlavorListener {
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290 |
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291 | public PasteUrlAction() {
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292 | putValue(NAME, tr("Paste"));
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293 | putValue(SMALL_ICON, ImageProvider.get("paste"));
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294 | putValue(SHORT_DESCRIPTION, tr("Paste URL from clipboard"));
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295 | Toolkit.getDefaultToolkit().getSystemClipboard().addFlavorListener(this);
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296 | }
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297 |
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298 | protected String getClipboardContent() {
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299 | Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
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300 | try {
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301 | if (t != null && t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
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302 | String text = (String)t.getTransferData(DataFlavor.stringFlavor);
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303 | return text;
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304 | }
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305 | } catch (UnsupportedFlavorException ex) {
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306 | ex.printStackTrace();
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307 | return null;
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308 | } catch (IOException ex) {
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309 | ex.printStackTrace();
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310 | return null;
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311 | }
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312 | return null;
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313 | }
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314 |
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315 | public void actionPerformed(ActionEvent e) {
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316 | String content = getClipboardContent();
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317 | if (content != null) {
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318 | tfOsmUrl.setText(content);
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319 | }
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320 | }
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321 |
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322 | protected void updateEnabledState() {
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323 | setEnabled(getClipboardContent() != null);
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324 | }
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325 |
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326 | public void flavorsChanged(FlavorEvent e) {
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327 | updateEnabledState();
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328 | }
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329 | }
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330 |
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331 | class OsmUrlPopup extends JPopupMenu {
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332 | public OsmUrlPopup() {
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333 | add(new PasteUrlAction());
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334 | }
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335 | }
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336 |
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337 | class BoundingBoxBuilder extends FocusAdapter implements ActionListener {
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338 | protected Bounds build() {
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339 | double minlon, minlat, maxlon,maxlat;
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340 | try {
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341 | minlon = Double.parseDouble(latlon[0].getText().trim());
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342 | minlat = Double.parseDouble(latlon[1].getText().trim());
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343 | maxlon = Double.parseDouble(latlon[2].getText().trim());
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344 | maxlat = Double.parseDouble(latlon[3].getText().trim());
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345 | } catch(NumberFormatException e) {
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346 | return null;
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347 | }
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348 | if (!LatLon.isValidLon(minlon) || !LatLon.isValidLon(maxlon)
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349 | || !LatLon.isValidLat(minlat) || ! LatLon.isValidLat(maxlat))
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350 | return null;
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351 | if (minlon > maxlon)
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352 | return null;
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353 | if (minlat > maxlat)
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354 | return null;
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355 | return new Bounds(minlon,minlat,maxlon,maxlat);
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356 | }
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357 |
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358 | protected void refreshBounds() {
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359 | Bounds b = build();
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360 | parent.boundingBoxChanged(b, BoundingBoxSelection.this);
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361 | }
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362 |
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363 | @Override
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364 | public void focusLost(FocusEvent e) {
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365 | refreshBounds();
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366 | }
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367 |
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368 | public void actionPerformed(ActionEvent e) {
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369 | refreshBounds();
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370 | }
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371 | }
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372 | }
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