source: osm/applications/editors/josm/plugins/utilsplugin/src/UtilsPlugin/JumpToAction.java@ 16444

Last change on this file since 16444 was 16419, checked in by guggis, 16 years ago

updated for core r1758 after rework of projection handling and of editor layer access
  • Property svn:eol-style set to native
File size: 7.1 KB
Line 
1package UtilsPlugin;
2
3import static org.openstreetmap.josm.tools.I18n.tr;
4
5import java.awt.BorderLayout;
6import java.awt.GridBagLayout;
7import java.awt.event.ActionEvent;
8import java.awt.event.KeyEvent;
9import java.awt.event.MouseEvent;
10import java.awt.event.MouseListener;
11
12import javax.swing.JLabel;
13import javax.swing.JOptionPane;
14import javax.swing.JPanel;
15import javax.swing.JTextField;
16import javax.swing.event.DocumentEvent;
17import javax.swing.event.DocumentListener;
18
19import org.openstreetmap.josm.Main;
20import org.openstreetmap.josm.actions.JosmAction;
21import org.openstreetmap.josm.data.Bounds;
22import org.openstreetmap.josm.data.ProjectionBounds;
23import org.openstreetmap.josm.data.coor.LatLon;
24import org.openstreetmap.josm.gui.NavigatableComponent;
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 LatLon curPos=Main.proj.eastNorth2latlon(Main.map.mapView.getCenter());
43 lat.setText(java.lang.Double.toString(curPos.lat()));
44 lon.setText(java.lang.Double.toString(curPos.lon()));
45
46 double dist = Main.map.mapView.getDist100Pixel();
47 zoomFactor = 1/dist;
48
49 zm.setText(java.lang.Long.toString(Math.round(dist*100)/100));
50 updateUrl(true);
51
52 JPanel panel = new JPanel(new BorderLayout());
53 panel.add(new JLabel("<html>"
54 + tr("Enter Lat/Lon to jump to position.")
55 + "<br>"
56 + tr("You can also paste an URL from www.openstreetmap.org")
57 + "<br>"
58 + "</html>"),
59 BorderLayout.NORTH);
60
61 class osmURLListener implements DocumentListener {
62 public void changedUpdate(DocumentEvent e) { parseURL(); }
63 public void insertUpdate(DocumentEvent e) { parseURL(); }
64 public void removeUpdate(DocumentEvent e) { parseURL(); }
65 }
66
67 class osmLonLatListener implements DocumentListener {
68 public void changedUpdate(DocumentEvent e) { updateUrl(false); }
69 public void insertUpdate(DocumentEvent e) { updateUrl(false); }
70 public void removeUpdate(DocumentEvent e) { updateUrl(false); }
71 }
72
73 osmLonLatListener x=new osmLonLatListener();
74 lat.getDocument().addDocumentListener(x);
75 lon.getDocument().addDocumentListener(x);
76 zm.getDocument().addDocumentListener(x);
77 url.getDocument().addDocumentListener(new osmURLListener());
78
79 JPanel p = new JPanel(new GridBagLayout());
80 panel.add(p, BorderLayout.NORTH);
81
82 p.add(new JLabel(tr("Latitude")), GBC.eol());
83 p.add(lat, GBC.eol().fill(GBC.HORIZONTAL));
84
85 p.add(new JLabel(tr("Longitude")), GBC.eol());
86 p.add(lon, GBC.eol().fill(GBC.HORIZONTAL));
87
88 p.add(new JLabel(tr("Zoom (in metres)")), GBC.eol());
89 p.add(zm, GBC.eol().fill(GBC.HORIZONTAL));
90
91 p.add(new JLabel(tr("URL")), GBC.eol());
92 p.add(url, GBC.eol().fill(GBC.HORIZONTAL));
93
94 Object[] buttons = { tr("Jump there"), tr("Cancel") };
95 LatLon ll = null;
96 double zoomLvl = 100;
97 while(ll == null) {
98 int option = JOptionPane.showOptionDialog(
99 Main.parent,
100 panel,
101 tr("Jump to Position"),
102 JOptionPane.OK_CANCEL_OPTION,
103 JOptionPane.PLAIN_MESSAGE,
104 null,
105 buttons,
106 buttons[0]);
107
108 if (option != JOptionPane.OK_OPTION) return;
109 try {
110 zoomLvl = Double.parseDouble(zm.getText());
111 ll = new LatLon(Double.parseDouble(lat.getText()), Double.parseDouble(lon.getText()));
112 } catch (Exception ex) {
113 JOptionPane.showMessageDialog(Main.parent, tr("Could not parse Latitude, Longitude or Zoom. Please check."), tr("Unable to parse Lon/Lat"), JOptionPane.ERROR_MESSAGE);
114 }
115 }
116
117 Main.map.mapView.zoomToFactor(Main.proj.latlon2eastNorth(ll), zoomFactor * zoomLvl);
118 }
119
120 private void parseURL() {
121 if(!url.hasFocus()) return;
122 Bounds b = OsmUrlToBounds.parse(url.getText());
123 if (b != null) {
124 lat.setText(Double.toString((b.min.lat() + b.max.lat())/2));
125 lon.setText(Double.toString((b.min.lon() + b.max.lon())/2));
126
127 int zoomLvl = 16;
128 String[] args = url.getText().substring(url.getText().indexOf('?')+1).split("&");
129 for (String arg : args) {
130 int eq = arg.indexOf('=');
131 if (eq == -1 || !arg.substring(0, eq).equalsIgnoreCase("zoom")) continue;
132
133 zoomLvl = Integer.parseInt(arg.substring(eq + 1));
134 break;
135 }
136
137 // 10000000 = 10 000 * 1000 = World * (km -> m)
138 zm.setText(Double.toString(Math.round(10000000 * Math.pow(2, (-1) * zoomLvl))));
139 }
140 }
141
142 private void updateUrl(boolean force) {
143 if(!lat.hasFocus() && !lon.hasFocus() && !zm.hasFocus() && !force) return;
144 try {
145 double dlat = Double.parseDouble(lat.getText());
146 double dlon = Double.parseDouble(lon.getText());
147 int zoomLvl = getZoom(zoomFactor * Double.parseDouble(zm.getText()));
148
149 int decimals = (int) Math.pow(10, (zoomLvl / 3));
150 dlat = Math.round(dlat * decimals);
151 dlat /= decimals;
152 dlon = Math.round(dlon * decimals);
153 dlon /= decimals;
154 url.setText("http://www.openstreetmap.org/?lat="+dlat+"&lon="+dlon+"&zoom="+zoomLvl);
155 } catch (NumberFormatException x) {}
156 }
157
158 public void actionPerformed(ActionEvent e) {
159 showJumpToDialog();
160 }
161
162 /**
163 * Converts a given scale into OSM-Style zoom factors
164 * @param double scale
165 */
166 public int getZoom(double scale) {
167 double sizex = scale * Main.map.mapView.getWidth();
168 double sizey = scale * Main.map.mapView.getHeight();
169 ProjectionBounds b = Main.proj.getWorldBounds();
170 for (int zoom = 0; zoom <= 32; zoom++, sizex *= 2, sizey *= 2) {
171 if (sizex > b.max.east() || sizey > b.max.north())
172 return zoom;
173 }
174 return 32;
175 }
176
177 public void mousePressed(MouseEvent e) {}
178
179 public void mouseReleased(MouseEvent e) {}
180
181 public void mouseEntered(MouseEvent e) {}
182
183 public void mouseExited(MouseEvent e) {}
184
185 public void mouseClicked(MouseEvent e) {
186 showJumpToDialog();
187 }
188}
Note: See TracBrowser for help on using the repository browser.