X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Ffunction%2Fcompress%2FCompressionAlgorithm.java;fp=src%2Ftim%2Fprune%2Ffunction%2Fcompress%2FCompressionAlgorithm.java;h=2cd5d77f9db184ea7d5c2532734601ee7ab589ac;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/function/compress/CompressionAlgorithm.java b/src/tim/prune/function/compress/CompressionAlgorithm.java
new file mode 100644
index 0000000..2cd5d77
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+++ b/src/tim/prune/function/compress/CompressionAlgorithm.java
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+package tim.prune.function.compress;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.event.ActionListener;
+
+import javax.swing.BorderFactory;
+import javax.swing.JCheckBox;
+import javax.swing.JPanel;
+
+import tim.prune.I18nManager;
+import tim.prune.data.Track;
+
+/**
+ * Abstract class to act as an algorithm for track compression
+ */
+public abstract class CompressionAlgorithm
+{
+	protected JCheckBox _activateCheckBox = null;
+	protected SummaryLabel _summaryLabel = null;
+	protected Track _track = null;
+	protected TrackDetails _trackDetails = null;
+
+
+	/**
+	 * Constructor giving Track
+	 * @param inTrack track object to use for compression
+	 * @param inDetails track details object
+	 * @param inListener listener to be informed of activation clicks
+	 */
+	public CompressionAlgorithm(Track inTrack, TrackDetails inDetails,
+		ActionListener inListener)
+	{
+		_track = inTrack;
+		_trackDetails = inDetails;
+		_activateCheckBox = new JCheckBox(I18nManager.getText(getTitleTextKey()));
+		_activateCheckBox.setSelected(false);
+		_activateCheckBox.addActionListener(inListener);
+	}
+
+
+	/**
+	 * @return true if this algorithm has been activated
+	 */
+	public boolean isActivated()
+	{
+		return _activateCheckBox.isSelected();
+	}
+
+
+	/**
+	 * @return JPanel containing gui components
+	 */
+	public JPanel getGuiComponents()
+	{
+		JPanel panel = new JPanel();
+		panel.setBorder(BorderFactory.createTitledBorder(""));
+		panel.setLayout(new BorderLayout());
+		panel.add(_activateCheckBox, BorderLayout.NORTH);
+		Component specifics = getSpecificGuiComponents();
+		if (specifics != null) {
+			panel.add(specifics, BorderLayout.CENTER);
+		}
+		// Add label at bottom
+		_summaryLabel = new SummaryLabel(_track);
+		panel.add(_summaryLabel, BorderLayout.SOUTH);
+		return panel;
+	}
+
+	/**
+	 * Preview the algorithm by counting the number of points deleted
+	 * @param inFlags array of deletion flags from previous algorithms
+	 * @return number of points to be deleted by this algorithm
+	 */
+	public int preview(boolean[] inFlags)
+	{
+		int numDeleted = 0;
+		if (isActivated())
+		{
+			// Run the compression and set the deletion flags
+			_trackDetails.initialise();
+			numDeleted = compress(inFlags);
+			_summaryLabel.setValue(numDeleted);
+		}
+		else {
+			_summaryLabel.clearValue();
+		}
+		return numDeleted;
+	}
+
+
+	/**
+	 * @return key to use for title text of algorithm
+	 */
+	protected abstract String getTitleTextKey();
+
+	/**
+	 * @return gui components controlling algorithm (if any)
+	 */
+	protected abstract Component getSpecificGuiComponents();
+
+	/**
+	 * Perform the compression and set the results in the given array
+	 * @param inFlags deletion flags from previous algorithms
+	 * @return number of points deleted by this algorithm
+	 */
+	protected abstract int compress(boolean[] inFlags);
+
+}