source: osm/applications/editors/josm/plugins/utilsplugin/src/UtilsPlugin/JumpToAction.java@ 15858

Last change on this file since 15858 was 13575, checked in by stoecker, 16 years ago

close #2112. patch by xeen
  • Property svn:eol-style set to native
File size: 7.7 KB
Line 
1package UtilsPlugin;
2
3import static org.openstreetmap.josm.tools.I18n.tr;
4
5import java.awt.BorderLayout;
6import java.awt.Component;
7import java.awt.event.ActionEvent;
8import java.awt.event.InputEvent;
9import java.awt.event.KeyEvent;
10import java.awt.event.MouseListener;
11import java.awt.event.MouseEvent;
12import java.awt.GridBagLayout;
13import java.awt.GridLayout;
14import java.awt.Toolkit;
15
16import javax.swing.Box;
17import javax.swing.event.DocumentListener;
18import javax.swing.event.DocumentEvent;
19import javax.swing.JComponent;
20import javax.swing.JDialog;
21import javax.swing.JLabel;
22import javax.swing.JOptionPane;
23import javax.swing.JPanel;
24import javax.swing.JTextField;
25import javax.swing.KeyStroke;
26
27import org.openstreetmap.josm.Main;
28import org.openstreetmap.josm.actions.JosmAction;
29import org.openstreetmap.josm.data.Bounds;
30import org.openstreetmap.josm.data.coor.EastNorth;
31import org.openstreetmap.josm.data.coor.LatLon;
32import org.openstreetmap.josm.gui.dialogs.ToggleDialog;
33import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
34import org.openstreetmap.josm.tools.GBC;
35import org.openstreetmap.josm.tools.OsmUrlToBounds;
36import org.openstreetmap.josm.tools.Shortcut;
37
38public class JumpToAction extends JosmAction implements MouseListener {
39 public JumpToAction() {
40 super(tr("Jump To Position"), null, tr("Opens a dialog that allows to jump to a specific location"), Shortcut.registerShortcut("tools:jumpto", tr("Tool: {0}", tr("Jump To Position")),
41 KeyEvent.VK_G, Shortcut.GROUP_HOTKEY), true);
42 }
43
44 private JTextField url = new JTextField();
45 private JTextField lat = new JTextField();
46 private JTextField lon = new JTextField();
47 private JTextField zm = new JTextField();
48
49 private double zoomFactor = 0;
50 public void showJumpToDialog() {
51 LatLon curPos=Main.proj.eastNorth2latlon(Main.map.mapView.getCenter());
52 lat.setText(java.lang.Double.toString(curPos.lat()));
53 lon.setText(java.lang.Double.toString(curPos.lon()));
54
55 LatLon ll1 = Main.map.mapView.getLatLon(0,0);
56 LatLon ll2 = Main.map.mapView.getLatLon(100,0);
57 double dist = ll1.greatCircleDistance(ll2);
58 zoomFactor = Main.map.mapView.getScale()/dist;
59
60 zm.setText(java.lang.Long.toString(Math.round(dist*100)/100));
61 updateUrl(true);
62
63 JPanel panel = new JPanel(new BorderLayout());
64 panel.add(new JLabel("<html>"
65 + tr("Enter Lat/Lon to jump to position.")
66 + "<br>"
67 + tr("You can also paste an URL from www.openstreetmap.org")
68 + "<br>"
69 + "</html>"),
70 BorderLayout.NORTH);
71
72 class osmURLListener implements DocumentListener {
73 public void changedUpdate(DocumentEvent e) { parseURL(); }
74 public void insertUpdate(DocumentEvent e) { parseURL(); }
75 public void removeUpdate(DocumentEvent e) { parseURL(); }
76 }
77
78 class osmLonLatListener implements DocumentListener {
79 public void changedUpdate(DocumentEvent e) { updateUrl(false); }
80 public void insertUpdate(DocumentEvent e) { updateUrl(false); }
81 public void removeUpdate(DocumentEvent e) { updateUrl(false); }
82 }
83
84 osmLonLatListener x=new osmLonLatListener();
85 lat.getDocument().addDocumentListener(x);
86 lon.getDocument().addDocumentListener(x);
87 zm.getDocument().addDocumentListener(x);
88 url.getDocument().addDocumentListener(new osmURLListener());
89
90 JPanel p = new JPanel(new GridBagLayout());
91 panel.add(p, BorderLayout.NORTH);
92
93 p.add(new JLabel(tr("Latitude")), GBC.eol());
94 p.add(lat, GBC.eol().fill(GBC.HORIZONTAL));
95
96 p.add(new JLabel(tr("Longitude")), GBC.eol());
97 p.add(lon, GBC.eol().fill(GBC.HORIZONTAL));
98
99 p.add(new JLabel(tr("Zoom (in metres)")), GBC.eol());
100 p.add(zm, GBC.eol().fill(GBC.HORIZONTAL));
101
102 p.add(new JLabel(tr("URL")), GBC.eol());
103 p.add(url, GBC.eol().fill(GBC.HORIZONTAL));
104
105 Object[] buttons = { tr("Jump there"), tr("Cancel") };
106 LatLon ll = null;
107 double zoomLvl = 100;
108 while(ll == null) {
109 int option = JOptionPane.showOptionDialog(
110 Main.parent,
111 panel,
112 tr("Jump to Position"),
113 JOptionPane.OK_CANCEL_OPTION,
114 JOptionPane.PLAIN_MESSAGE,
115 null,
116 buttons,
117 buttons[0]);
118
119 if (option != JOptionPane.OK_OPTION) return;
120 try {
121 zoomLvl = Double.parseDouble(zm.getText());
122 ll = new LatLon(Double.parseDouble(lat.getText()), Double.parseDouble(lon.getText()));
123 } catch (Exception ex) {
124 JOptionPane.showMessageDialog(Main.parent, tr("Could not parse Latitude, Longitude or Zoom. Please check."), tr("Unable to parse Lon/Lat"), JOptionPane.ERROR_MESSAGE);
125 }
126 }
127
128 Main.map.mapView.zoomTo(Main.proj.latlon2eastNorth(ll), zoomFactor * zoomLvl);
129 }
130
131 private void parseURL() {
132 if(!url.hasFocus()) return;
133 Bounds b = OsmUrlToBounds.parse(url.getText());
134 if (b != null) {
135 lat.setText(Double.toString((b.min.lat() + b.max.lat())/2));
136 lon.setText(Double.toString((b.min.lon() + b.max.lon())/2));
137
138 int zoomLvl = 16;
139 String[] args = url.getText().substring(url.getText().indexOf('?')+1).split("&");
140 for (String arg : args) {
141 int eq = arg.indexOf('=');
142 if (eq == -1 || !arg.substring(0, eq).equalsIgnoreCase("zoom")) continue;
143
144 zoomLvl = Integer.parseInt(arg.substring(eq + 1));
145 break;
146 }
147
148 // 10000000 = 10 000 * 1000 = World * (km -> m)
149 zm.setText(Double.toString(Math.round(10000000 * Math.pow(2, (-1) * zoomLvl))));
150 }
151 }
152
153 private void updateUrl(boolean force) {
154 if(!lat.hasFocus() && !lon.hasFocus() && !zm.hasFocus() && !force) return;
155 try {
156 double dlat = Double.parseDouble(lat.getText());
157 double dlon = Double.parseDouble(lon.getText());
158 int zoomLvl = getZoom(zoomFactor * Double.parseDouble(zm.getText()));
159
160 int decimals = (int) Math.pow(10, (zoomLvl / 3));
161 dlat = Math.round(dlat * decimals);
162 dlat /= decimals;
163 dlon = Math.round(dlon * decimals);
164 dlon /= decimals;
165 url.setText("http://www.openstreetmap.org/?lat="+dlat+"&lon="+dlon+"&zoom="+zoomLvl);
166 } catch (NumberFormatException x) {}
167 }
168
169 public void actionPerformed(ActionEvent e) {
170 showJumpToDialog();
171 }
172
173 /**
174 * Converts a given scale into OSM-Style zoom factors
175 * @param double scale
176 */
177 public int getZoom(double scale) {
178 double sizex = scale * Main.map.mapView.getWidth();
179 double sizey = scale * Main.map.mapView.getHeight();
180 for (int zoom = 0; zoom <= 32; zoom++, sizex *= 2, sizey *= 2)
181 if (sizex > Main.map.mapView.world.east() || sizey > Main.map.mapView.world.north())
182 return zoom;
183 return 32;
184 }
185
186 public void mousePressed(MouseEvent e) {}
187
188 public void mouseReleased(MouseEvent e) {}
189
190 public void mouseEntered(MouseEvent e) {}
191
192 public void mouseExited(MouseEvent e) {}
193
194 public void mouseClicked(MouseEvent e) {
195 showJumpToDialog();
196 }
197}
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