X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fload%2Fbabel%2FSimplifyFilter.java;fp=src%2Ftim%2Fprune%2Fload%2Fbabel%2FSimplifyFilter.java;h=1567c883dc1a60bc65f56fa0e273c0bfc48aba49;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/load/babel/SimplifyFilter.java b/src/tim/prune/load/babel/SimplifyFilter.java
new file mode 100644
index 0000000..1567c88
--- /dev/null
+++ b/src/tim/prune/load/babel/SimplifyFilter.java
@@ -0,0 +1,147 @@
+package tim.prune.load.babel;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.GridLayout;
+
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.ButtonGroup;
+import javax.swing.JComboBox;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JRadioButton;
+
+import tim.prune.I18nManager;
+import tim.prune.data.UnitSetLibrary;
+import tim.prune.gui.DecimalNumberField;
+import tim.prune.gui.WholeNumberField;
+
+/**
+ * Simplify filter for GPSBabel
+ */
+public class SimplifyFilter extends FilterDefinition
+{
+	/** Constructor */
+	public SimplifyFilter(AddFilterDialog inFilterDialog)
+	{
+		super(inFilterDialog);
+		makePanelContents();
+	}
+
+	private WholeNumberField _maxPointsField = null;
+	private DecimalNumberField _distField = null;
+	private JComboBox<String> _distUnitsCombo = null;
+	private JRadioButton _crossTrackRadio = null;
+	private JRadioButton _lengthRadio = null;
+	private JRadioButton _relativeRadio = null;
+
+
+	/** @return filter name */
+	protected String getFilterName() {
+		return "simplify";
+	}
+
+	/** Make the panel contents */
+	protected void makePanelContents()
+	{
+		setLayout(new BorderLayout());
+		JPanel boxPanel = new JPanel();
+		boxPanel.setLayout(new BoxLayout(boxPanel, BoxLayout.Y_AXIS));
+		add(boxPanel, BorderLayout.NORTH);
+		JLabel topLabel = new JLabel(I18nManager.getText("dialog.gpsbabel.filter.simplify.intro"));
+		topLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
+		boxPanel.add(topLabel);
+		boxPanel.add(Box.createVerticalStrut(18)); // spacer
+		// Main three-column grid
+		JPanel gridPanel = new JPanel();
+		gridPanel.setLayout(new GridLayout(0, 3, 4, 4));
+		gridPanel.add(new JLabel(I18nManager.getText("dialog.gpsbabel.filter.simplify.maxpoints")));
+		_maxPointsField = new WholeNumberField(6);
+		_maxPointsField.addKeyListener(_paramChangeListener);
+		gridPanel.add(_maxPointsField);
+		gridPanel.add(new JLabel(" "));
+		gridPanel.add(new JLabel(I18nManager.getText("dialog.gpsbabel.filter.simplify.maxerror")));
+		_distField = new DecimalNumberField();
+		_distField.addKeyListener(_paramChangeListener);
+		gridPanel.add(_distField);
+		_distUnitsCombo = new JComboBox<String>(new String[] {
+			I18nManager.getText(UnitSetLibrary.UNITS_KILOMETRES.getNameKey()),
+			I18nManager.getText(UnitSetLibrary.UNITS_MILES.getNameKey())
+		});
+		gridPanel.add(_distUnitsCombo);
+		// radio buttons
+		_crossTrackRadio = new JRadioButton(I18nManager.getText("dialog.gpsbabel.filter.simplify.crosstrack"));
+		_crossTrackRadio.setSelected(true);
+		_lengthRadio     = new JRadioButton(I18nManager.getText("dialog.gpsbabel.filter.simplify.length"));
+		_relativeRadio   = new JRadioButton(I18nManager.getText("dialog.gpsbabel.filter.simplify.relative"));
+		ButtonGroup radioGroup = new ButtonGroup();
+		radioGroup.add(_crossTrackRadio);
+		radioGroup.add(_lengthRadio);
+		radioGroup.add(_relativeRadio);
+		gridPanel.add(_crossTrackRadio);
+		gridPanel.add(_lengthRadio);
+		gridPanel.add(_relativeRadio);
+		gridPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+		boxPanel.add(gridPanel);
+	}
+
+	/**
+	 * @return true if the filters are valid
+	 */
+	public boolean isFilterValid()
+	{
+		final boolean countGiven = _maxPointsField.getText() != null && _maxPointsField.getText().trim().length() > 0;
+		final boolean distGiven = _distField.getText() != null && _distField.getText().trim().length() > 0;
+		if ((!countGiven && !distGiven) || (countGiven && distGiven)) {
+			return false; // only one or the other allowed
+		}
+		if (countGiven && _maxPointsField.getValue() <= 1) {
+			return false; // must have a decent max points
+		}
+		if (distGiven && _distField.getValue() <= 0.001) {
+			return false; // no zero or negative distances allowed
+		}
+		// must be ok
+		return true;
+	}
+
+	/**
+	 * @return filter parameters as a string, or null
+	 */
+	protected String getParameters()
+	{
+		if (!isFilterValid()) return null;
+		StringBuilder builder = new StringBuilder();
+		// type
+		final boolean countGiven = _maxPointsField.getText() != null && _maxPointsField.getText().trim().length() > 0;
+		final boolean distGiven = _distField.getText() != null && _distField.getText().trim().length() > 0;
+		if (countGiven) {
+			builder.append(",count=").append(_maxPointsField.getValue());
+		}
+		else if (distGiven)
+		{
+			double dValue = 1.0;
+			try {
+				dValue = Double.parseDouble(_distField.getText());
+			}
+			catch (Exception e) {} // shouldn't happen, otherwise validation would have failed
+			builder.append(",error=").append(dValue);
+			// units of distance (miles by default)
+			if (_distUnitsCombo.getSelectedIndex() == 0) {
+				builder.append("k"); // nothing for miles
+			}
+		}
+		// three options
+		if (_crossTrackRadio.isSelected()) {
+			builder.append(",crosstrack"); // default, could not pass it
+		}
+		else if (_lengthRadio.isSelected()) {
+			builder.append(",length");
+		}
+		else if (_relativeRadio.isSelected()) {
+			builder.append(",relative");
+		}
+		return builder.toString();
+	}
+}