]> gitweb.fperrin.net Git - GpsPrune.git/blobdiff - tim/prune/function/DownloadOsmFunction.java
Moved source into separate src directory due to popular request
[GpsPrune.git] / tim / prune / function / DownloadOsmFunction.java
diff --git a/tim/prune/function/DownloadOsmFunction.java b/tim/prune/function/DownloadOsmFunction.java
deleted file mode 100644 (file)
index b3ee1b2..0000000
+++ /dev/null
@@ -1,277 +0,0 @@
-package tim.prune.function;
-
-import java.awt.BorderLayout;
-import java.awt.Component;
-import java.awt.FlowLayout;
-import java.awt.GridLayout;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.text.NumberFormat;
-
-import javax.swing.BorderFactory;
-import javax.swing.BoxLayout;
-import javax.swing.JButton;
-import javax.swing.JDialog;
-import javax.swing.JFileChooser;
-import javax.swing.JLabel;
-import javax.swing.JOptionPane;
-import javax.swing.JPanel;
-import javax.swing.JProgressBar;
-
-import tim.prune.App;
-import tim.prune.GenericFunction;
-import tim.prune.I18nManager;
-import tim.prune.data.DoubleRange;
-
-/**
- * Class to allow the download of OSM data (using the XAPI)
- * for the area covered by the data
- */
-public class DownloadOsmFunction extends GenericFunction implements Runnable
-{
-       private JDialog _dialog = null;
-       private JLabel[] _latLonLabels = null;
-       private JProgressBar _progressBar = null;
-       private JButton _okButton = null;
-       private JFileChooser _fileChooser = null;
-       private File _selectedFile = null;
-       private boolean _cancelled = false;
-       /** Number formatter */
-       private final NumberFormat FORMAT_TWO_DP = NumberFormat.getNumberInstance();
-
-
-       /**
-        * Constructor
-        * @param inApp application object for callback
-        */
-       public DownloadOsmFunction(App inApp)
-       {
-               super(inApp);
-               FORMAT_TWO_DP.setMaximumFractionDigits(2);
-               FORMAT_TWO_DP.setMinimumFractionDigits(2);
-       }
-
-       /** Get the name key */
-       public String getNameKey() {
-               return "function.downloadosm";
-       }
-
-       /**
-        * Begin the function
-        */
-       public void begin()
-       {
-               // Make dialog window
-               if (_dialog == null)
-               {
-                       _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
-                       _dialog.setLocationRelativeTo(_parentFrame);
-                       _dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
-                       _dialog.getContentPane().add(makeDialogComponents());
-                       _dialog.pack();
-                       _fileChooser = new JFileChooser();
-                       _fileChooser.setSelectedFile(new File("data.osm"));
-               }
-               initDialog();
-               _dialog.setVisible(true);
-       }
-
-
-       /**
-        * Create dialog components
-        * @return Panel containing all gui elements in dialog
-        */
-       private Component makeDialogComponents()
-       {
-               JPanel dialogPanel = new JPanel();
-               dialogPanel.setLayout(new BorderLayout(0, 10));
-               dialogPanel.add(new JLabel(I18nManager.getText("dialog.downloadosm.desc")), BorderLayout.NORTH);
-               // grid of labels to show lat/long extent
-               JPanel gridPanel = new JPanel();
-               gridPanel.setLayout(new GridLayout(3, 3));
-               _latLonLabels = new JLabel[4];
-               for (int i=0; i<4; i++) {
-                       _latLonLabels[i] = new JLabel("0");
-               }
-               int lNum = 0;
-               for (int i=0; i<4; i++) {
-                       gridPanel.add(new JLabel(" "));
-                       gridPanel.add(_latLonLabels[lNum++]);
-               }
-               // layout main panel
-               JPanel mainPanel = new JPanel();
-               mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
-               mainPanel.add(gridPanel);
-               _progressBar = new JProgressBar();
-               _progressBar.setIndeterminate(true);
-               mainPanel.add(_progressBar);
-               dialogPanel.add(mainPanel, BorderLayout.CENTER);
-               // button panel at bottom
-               JPanel buttonPanel = new JPanel();
-               buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
-               _okButton = new JButton(I18nManager.getText("button.ok"));
-               ActionListener okListener = new ActionListener() {
-                       public void actionPerformed(ActionEvent e) {
-                               finish();
-                       }
-               };
-               _okButton.addActionListener(okListener);
-               buttonPanel.add(_okButton);
-               JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
-               cancelButton.addActionListener(new ActionListener() {
-                       public void actionPerformed(ActionEvent e) {
-                               _cancelled = true;
-                               _dialog.dispose();
-                       }
-               });
-               buttonPanel.add(cancelButton);
-               dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
-               dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
-               return dialogPanel;
-       }
-
-       /**
-        * Initialise the values of the labels in the dialog
-        */
-       private void initDialog()
-       {
-               // Get range of data
-               String[] lats = expandRange(_app.getTrackInfo().getTrack().getLatRange());
-               String[] lons = expandRange(_app.getTrackInfo().getTrack().getLonRange());
-               _latLonLabels[0].setText(lats[1]); // max lat
-               _latLonLabels[1].setText(lons[0]); // min lon
-               _latLonLabels[2].setText(lons[1]); // max lon
-               _latLonLabels[3].setText(lats[0]); // min lat
-               _okButton.setEnabled(true);
-               _progressBar.setVisible(false);
-               _cancelled = false;
-       }
-
-       /**
-        * Expand the given range to reasonable limits
-        * @param inRange range of lat/long values
-        * @return expanded range as pair of Strings
-        */
-       private String[] expandRange(DoubleRange inRange)
-       {
-               double mid = (inRange.getMaximum() + inRange.getMinimum()) / 2.0;
-               double range = inRange.getRange();
-               double max = 0.0, min = 0.0;
-               // Expand range to at least 0.02 degree
-               if (range < 0.02)
-               {
-                       min = mid - 0.01;
-                       max = mid + 0.01;
-               }
-               else {
-                       // expand by 10% in both directions
-                       min = mid - range * 0.55;
-                       max = mid + range * 0.55;
-               }
-               // Round min down to 0.01 degree
-               int minCents = (int) (100 * min);
-               // Round max upwards likewise
-               int maxCents = (int) (100 * max + 1);
-               final String[] answer = new String[] {FORMAT_TWO_DP.format(minCents/100.0),
-                       FORMAT_TWO_DP.format(maxCents/100.0)};
-               return answer;
-       }
-
-       /**
-        * Finish the dialog when OK pressed
-        */
-       private void finish()
-       {
-               if (!_okButton.isEnabled()) return;
-               _selectedFile = selectOsmFile();
-               if (_selectedFile != null)
-               {
-                       // Show progress bar
-                       _okButton.setEnabled(false);
-                       _progressBar.setVisible(true);
-                       new Thread(this).start();
-               }
-               else
-                       _dialog.dispose();
-       }
-
-       /**
-        * Select a file to save the OSM data to
-        * @return selected file or null if cancelled
-        */
-       private File selectOsmFile()
-       {
-               File saveFile = null;
-               boolean chooseAgain = false;
-               do
-               {
-                       chooseAgain = false;
-                       if (_fileChooser.showSaveDialog(_dialog) == JFileChooser.APPROVE_OPTION)
-                       {
-                               // OK pressed and file chosen
-                               File file = _fileChooser.getSelectedFile();
-                               // Check if file exists and if necessary prompt for overwrite
-                               Object[] buttonTexts = {I18nManager.getText("button.overwrite"), I18nManager.getText("button.cancel")};
-                               if (!file.exists() || JOptionPane.showOptionDialog(_dialog,
-                                               I18nManager.getText("dialog.save.overwrite.text"),
-                                               I18nManager.getText("dialog.save.overwrite.title"), JOptionPane.YES_NO_OPTION,
-                                               JOptionPane.WARNING_MESSAGE, null, buttonTexts, buttonTexts[1])
-                                       == JOptionPane.YES_OPTION)
-                               {
-                                       // new file or overwrite confirmed
-                                       saveFile = file;
-                               }
-                               else
-                               {
-                                       // file exists and overwrite cancelled - select again
-                                       chooseAgain = true;
-                               }
-                       }
-               } while (chooseAgain);
-               return saveFile;
-       }
-
-
-       /**
-        * Do the actual download - launched to run in another thread
-        */
-       public void run()
-       {
-               String url = "http://overpass-api.de/api/interpreter?data=(node(" +
-                       _latLonLabels[3].getText() + "," + _latLonLabels[1].getText() + "," +
-                       _latLonLabels[0].getText() + "," + _latLonLabels[2].getText() + ");<;);out%20qt;";
-               // System.out.println(url);
-
-               byte[] buffer = new byte[1024];
-               InputStream inStream = null;
-               FileOutputStream outStream = null;
-               int numBytesRead = 0;
-               try
-               {
-                       inStream = new URL(url).openStream();
-                       outStream = new FileOutputStream(_selectedFile);
-                       // Loop and copy bytes to file
-                       while ((numBytesRead = inStream.read(buffer)) > -1 && !_cancelled)
-                       {
-                               outStream.write(buffer, 0, numBytesRead);
-                       }
-               }
-               catch (MalformedURLException mue) {}
-               catch (IOException ioe) {
-                       _app.showErrorMessageNoLookup(getNameKey(), ioe.getClass().getName() + " - " + ioe.getMessage());
-               }
-               // clean up streams
-               finally {
-                       try {inStream.close();} catch (Exception e) {}
-                       try {outStream.close();} catch (Exception e) {}
-               }
-               // close dialog
-               _dialog.dispose();
-       }
-}