source: josm/trunk/src/org/openstreetmap/josm/actions/JumpToAction.java@ 2575

Last change on this file since 2575 was 2575, checked in by stoecker, 14 years ago

include utilsplugin, fix #4086
File size: 7.0 KB
Line 
1// License: GPL. Copyright 2007 by Immanuel Scholz and others
2package org.openstreetmap.josm.actions;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.BorderLayout;
7import java.awt.GridBagLayout;
8import java.awt.event.ActionEvent;
9import java.awt.event.KeyEvent;
10import java.awt.event.MouseEvent;
11import java.awt.event.MouseListener;
12
13import javax.swing.JLabel;
14import javax.swing.JOptionPane;
15import javax.swing.JPanel;
16import javax.swing.JTextField;
17import javax.swing.event.DocumentEvent;
18import javax.swing.event.DocumentListener;
19
20import org.openstreetmap.josm.Main;
21import org.openstreetmap.josm.actions.JosmAction;
22import org.openstreetmap.josm.data.Bounds;
23import org.openstreetmap.josm.data.coor.LatLon;
24import org.openstreetmap.josm.gui.MapView;
25import org.openstreetmap.josm.tools.GBC;
26import org.openstreetmap.josm.tools.OsmUrlToBounds;
27import org.openstreetmap.josm.tools.Shortcut;
28
29public class JumpToAction extends JosmAction implements MouseListener {
30 public JumpToAction() {
31 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")),
32 KeyEvent.VK_G, Shortcut.GROUP_HOTKEY), true);
33 }
34
35 private JTextField url = new JTextField();
36 private JTextField lat = new JTextField();
37 private JTextField lon = new JTextField();
38 private JTextField zm = new JTextField();
39
40 private double zoomFactor = 0;
41 public void showJumpToDialog() {
42 MapView mv = Main.map.mapView;
43 if(mv == null)
44 return;
45 LatLon curPos=mv.getProjection().eastNorth2latlon(mv.getCenter());
46 lat.setText(java.lang.Double.toString(curPos.lat()));
47 lon.setText(java.lang.Double.toString(curPos.lon()));
48
49 double dist = mv.getDist100Pixel();
50 zoomFactor = 1/dist;
51
52 zm.setText(java.lang.Long.toString(Math.round(dist*100)/100));
53 updateUrl(true);
54
55 JPanel panel = new JPanel(new BorderLayout());
56 panel.add(new JLabel("<html>"
57 + tr("Enter Lat/Lon to jump to position.")
58 + "<br>"
59 + tr("You can also paste an URL from www.openstreetmap.org")
60 + "<br>"
61 + "</html>"),
62 BorderLayout.NORTH);
63
64 class osmURLListener implements DocumentListener {
65 public void changedUpdate(DocumentEvent e) { parseURL(); }
66 public void insertUpdate(DocumentEvent e) { parseURL(); }
67 public void removeUpdate(DocumentEvent e) { parseURL(); }
68 }
69
70 class osmLonLatListener implements DocumentListener {
71 public void changedUpdate(DocumentEvent e) { updateUrl(false); }
72 public void insertUpdate(DocumentEvent e) { updateUrl(false); }
73 public void removeUpdate(DocumentEvent e) { updateUrl(false); }
74 }
75
76 osmLonLatListener x=new osmLonLatListener();
77 lat.getDocument().addDocumentListener(x);
78 lon.getDocument().addDocumentListener(x);
79 zm.getDocument().addDocumentListener(x);
80 url.getDocument().addDocumentListener(new osmURLListener());
81
82 JPanel p = new JPanel(new GridBagLayout());
83 panel.add(p, BorderLayout.NORTH);
84
85 p.add(new JLabel(tr("Latitude")), GBC.eol());
86 p.add(lat, GBC.eol().fill(GBC.HORIZONTAL));
87
88 p.add(new JLabel(tr("Longitude")), GBC.eol());
89 p.add(lon, GBC.eol().fill(GBC.HORIZONTAL));
90
91 p.add(new JLabel(tr("Zoom (in metres)")), GBC.eol());
92 p.add(zm, GBC.eol().fill(GBC.HORIZONTAL));
93
94 p.add(new JLabel(tr("URL")), GBC.eol());
95 p.add(url, GBC.eol().fill(GBC.HORIZONTAL));
96
97 Object[] buttons = { tr("Jump there"), tr("Cancel") };
98 LatLon ll = null;
99 double zoomLvl = 100;
100 while(ll == null) {
101 int option = JOptionPane.showOptionDialog(
102 Main.parent,
103 panel,
104 tr("Jump to Position"),
105 JOptionPane.OK_CANCEL_OPTION,
106 JOptionPane.PLAIN_MESSAGE,
107 null,
108 buttons,
109 buttons[0]);
110
111 if (option != JOptionPane.OK_OPTION) return;
112 try {
113 zoomLvl = Double.parseDouble(zm.getText());
114 ll = new LatLon(Double.parseDouble(lat.getText()), Double.parseDouble(lon.getText()));
115 } catch (Exception ex) {
116 JOptionPane.showMessageDialog(Main.parent, tr("Could not parse Latitude, Longitude or Zoom. Please check."), tr("Unable to parse Lon/Lat"), JOptionPane.ERROR_MESSAGE);
117 }
118 }
119
120 mv.zoomToFactor(mv.getProjection().latlon2eastNorth(ll), zoomFactor * zoomLvl);
121 }
122
123 private void parseURL() {
124 if(!url.hasFocus()) return;
125 Bounds b = OsmUrlToBounds.parse(url.getText());
126 if (b != null) {
127 lat.setText(Double.toString((b.getMin().lat() + b.getMax().lat())/2));
128 lon.setText(Double.toString((b.getMin().lon() + b.getMax().lon())/2));
129
130 int zoomLvl = 16;
131 String[] args = url.getText().substring(url.getText().indexOf('?')+1).split("&");
132 for (String arg : args) {
133 int eq = arg.indexOf('=');
134 if (eq == -1 || !arg.substring(0, eq).equalsIgnoreCase("zoom")) continue;
135
136 zoomLvl = Integer.parseInt(arg.substring(eq + 1));
137 break;
138 }
139
140 // 10 000 000 = 10 000 * 1000 = World * (km -> m)
141 zm.setText(Double.toString(Math.round(10000000 * Math.pow(2, (-1) * zoomLvl))));
142 }
143 }
144
145 private void updateUrl(boolean force) {
146 if(!lat.hasFocus() && !lon.hasFocus() && !zm.hasFocus() && !force) return;
147 try {
148 double dlat = Double.parseDouble(lat.getText());
149 double dlon = Double.parseDouble(lon.getText());
150 double m = Double.parseDouble(zm.getText());
151 // Inverse function to the one above. 18 is the current maximum zoom
152 // available on standard renderers, so choose this is in case m
153 // should be zero
154 int zoomLvl = 18;
155 if(m > 0)
156 zoomLvl = (int)Math.round((-1) * Math.log(m/10000000)/Math.log(2));
157
158 int decimals = (int) Math.pow(10, (zoomLvl / 3));
159 dlat = Math.round(dlat * decimals);
160 dlat /= decimals;
161 dlon = Math.round(dlon * decimals);
162 dlon /= decimals;
163 url.setText("http://www.openstreetmap.org/?lat="+dlat+"&lon="+dlon+"&zoom="+zoomLvl);
164 } catch (NumberFormatException x) {}
165 }
166
167 public void actionPerformed(ActionEvent e) {
168 showJumpToDialog();
169 }
170
171 public void mousePressed(MouseEvent e) {}
172
173 public void mouseReleased(MouseEvent e) {}
174
175 public void mouseEntered(MouseEvent e) {}
176
177 public void mouseExited(MouseEvent e) {}
178
179 public void mouseClicked(MouseEvent e) {
180 showJumpToDialog();
181 }
182}
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