X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Ffunction%2Fcompress%2FCompressTrackFunction.java;fp=src%2Ftim%2Fprune%2Ffunction%2Fcompress%2FCompressTrackFunction.java;h=8e89360d7f79ba820f2743a001e319a42dd99a6c;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/function/compress/CompressTrackFunction.java b/src/tim/prune/function/compress/CompressTrackFunction.java
new file mode 100644
index 0000000..8e89360
--- /dev/null
+++ b/src/tim/prune/function/compress/CompressTrackFunction.java
@@ -0,0 +1,195 @@
+package tim.prune.function.compress;
+
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.BorderFactory;
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+
+import tim.prune.App;
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Track;
+
+/**
+ * Class to provide the function for track compression
+ */
+public class CompressTrackFunction extends MarkAndDeleteFunction
+{
+	private Track _track = null;
+	private JDialog _dialog = null;
+	private JButton _okButton = null;
+	private CompressionAlgorithm[] _algorithms = null;
+	private SummaryLabel _summaryLabel = null;
+
+
+	/**
+	 * Constructor
+	 * @param inApp app object
+	 */
+	public CompressTrackFunction(App inApp)
+	{
+		super(inApp);
+		_track = inApp.getTrackInfo().getTrack();
+		makeAlgorithms();
+	}
+
+	/** Get the name key */
+	public String getNameKey() {
+		return "function.compress";
+	}
+
+	/**
+	 * Show the dialog to select compression parameters
+	 */
+	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();
+		}
+		preview();
+		_dialog.setVisible(true);
+	}
+
+	/**
+	 * Preview the compression by calling each algorithm in turn
+	 * @return array of delete flags
+	 */
+	private boolean[] preview()
+	{
+		int numToDelete = 0;
+		boolean[] deleteFlags = new boolean[_track.getNumPoints()];
+		for (int i=0; i<_algorithms.length; i++)
+		{
+			numToDelete += _algorithms[i].preview(deleteFlags);
+		}
+		_summaryLabel.setValue(numToDelete);
+		_okButton.setEnabled(numToDelete > 0);
+		return deleteFlags;
+	}
+
+
+	/**
+	 * Create dialog components
+	 * @return Panel containing all gui elements in dialog
+	 */
+	private JPanel makeDialogComponents()
+	{
+		JPanel dialogPanel = new JPanel();
+		dialogPanel.setLayout(new BorderLayout());
+
+		// Make a central panel
+		JPanel mainPanel = new JPanel();
+		mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
+
+		// Add each of the algorithm components to the panel
+		for (int i=0; i<_algorithms.length; i++)
+		{
+			mainPanel.add(_algorithms[i].getGuiComponents());
+			mainPanel.add(Box.createRigidArea(new Dimension(0, 2)));
+		}
+		// Summary label below algorithms
+		JPanel summaryPanel = new JPanel();
+		_summaryLabel = new SummaryLabel(_track);
+		summaryPanel.add(_summaryLabel);
+		mainPanel.add(summaryPanel);
+		dialogPanel.add(mainPanel, BorderLayout.NORTH);
+
+		// button panel at bottom
+		JPanel buttonPanel = new JPanel();
+		buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+		_okButton = new JButton(I18nManager.getText("button.ok"));
+		_okButton.setEnabled(false);
+		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)
+			{
+				_dialog.dispose();
+			}
+		});
+		buttonPanel.add(cancelButton);
+		dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
+		dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
+		return dialogPanel;
+	}
+
+
+	/**
+	 * Initialise all the algorithms to use
+	 */
+	private void makeAlgorithms()
+	{
+		// make listener to be informed of algorithm activation
+		ActionListener changeListener = new ActionListener() {
+			public void actionPerformed(ActionEvent arg0)
+			{
+				preview();
+			};
+		};
+		// construct track details to be used by all algorithms
+		TrackDetails details = new TrackDetails(_track);
+		// make array of algorithm objects
+		_algorithms = new CompressionAlgorithm[] {
+			new DuplicatePointAlgorithm(_track, details, changeListener),
+			new ClosePointsAlgorithm(_track, details, changeListener),
+			new WackyPointAlgorithm(_track, details, changeListener),
+			new SingletonAlgorithm(_track, details, changeListener),
+			new DouglasPeuckerAlgorithm(_track, details, changeListener)
+		};
+	}
+
+
+	/**
+	 * Finish the dialog when OK pressed
+	 */
+	private void finish()
+	{
+		boolean[] deleteFlags = preview();
+		// All flags are now combined in deleteFlags array
+		int numMarked = 0;
+		for (int i=0; i<deleteFlags.length; i++)
+		{
+			DataPoint point = _track.getPoint(i);
+			boolean deletePoint = deleteFlags[i] && !point.hasMedia();
+			point.setMarkedForDeletion(deletePoint);
+			if (deletePoint) numMarked++;
+		}
+
+		// Close dialog and inform listeners
+		UpdateMessageBroker.informSubscribers();
+		_dialog.dispose();
+		// Show confirmation dialog with OK button (not status bar message)
+		if (numMarked > 0)
+		{
+			optionallyDeleteMarkedPoints(numMarked);
+		}
+		else
+		{
+			JOptionPane.showMessageDialog(_parentFrame, I18nManager.getText("dialog.compress.confirmnone"),
+				I18nManager.getText(getNameKey()), JOptionPane.INFORMATION_MESSAGE);
+		}
+	}
+}