X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Ffunction%2Fdistance%2FDistanceTableModel.java;fp=src%2Ftim%2Fprune%2Ffunction%2Fdistance%2FDistanceTableModel.java;h=2c1d83d1337b56af1a8ab1fbad0a3cc938b3d5a2;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/function/distance/DistanceTableModel.java b/src/tim/prune/function/distance/DistanceTableModel.java
new file mode 100644
index 0000000..2c1d83d
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+++ b/src/tim/prune/function/distance/DistanceTableModel.java
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+package tim.prune.function.distance;
+
+import tim.prune.I18nManager;
+import tim.prune.config.Config;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Distance;
+import tim.prune.data.Unit;
+
+/**
+ * Class to hold the table model for the distances table
+ */
+public class DistanceTableModel extends GenericTableModel
+{
+	/** Distances */
+	private double[] _distances = null;
+	/** Column heading */
+	private static final String _toColLabel = I18nManager.getText("dialog.distances.column.to");
+	/** Column heading (depends on metric/imperial settings) */
+	private String _distanceLabel = null;
+	/** Previous distance units */
+	private Unit _previousDistUnit = null;
+
+	/**
+	 * @return column count
+	 */
+	public int getColumnCount()
+	{
+		return 2;
+	}
+
+	/**
+	 * @param inRowIndex row index
+	 * @param inColumnIndex column index
+	 * @return cell value
+	 */
+	public Object getValueAt(int inRowIndex, int inColumnIndex)
+	{
+		if (inColumnIndex == 0) {return getPointName(inRowIndex);}
+		if (_distances == null) {return 0.0;}
+		return new Double(_distances[inRowIndex]);
+	}
+
+	/**
+	 * @param inColumnIndex column index
+	 * @return column name
+	 */
+	public String getColumnName(int inColumnIndex)
+	{
+		if (inColumnIndex == 0) {return _toColLabel;}
+		return _distanceLabel;
+	}
+
+	/**
+	 * Get the column class (required for sorting)
+	 * @param inColumnIndex column index
+	 * @return Class of specified column
+	 */
+	public Class<?> getColumnClass(int inColumnIndex)
+	{
+		if (inColumnIndex == 0) return String.class;
+		return Double.class;
+	}
+
+	/**
+	 * Recalculate the distances
+	 * @param inIndex index of selected 'from' point
+	 */
+	public void recalculate(int inIndex)
+	{
+		// Which units to use?
+		Unit distUnit = Config.getUnitSet().getDistanceUnit();
+		_distanceLabel = I18nManager.getText("fieldname.distance") + " (" +
+			I18nManager.getText(distUnit.getShortnameKey()) + ")";
+		final boolean distUnitsChanged = (distUnit != _previousDistUnit);
+		_previousDistUnit = distUnit;
+
+		// Initialize array of distances
+		int numRows = getRowCount();
+		if (_distances == null || _distances.length != numRows) {
+			_distances = new double[numRows];
+		}
+		DataPoint fromPoint = _pointList.get(inIndex);
+		for (int i=0; i<numRows; i++) {
+			if (i == inIndex) {
+				_distances[i] = 0.0;
+			}
+			else {
+				double rads = DataPoint.calculateRadiansBetween(fromPoint, _pointList.get(i));
+				_distances[i] = Distance.convertRadiansToDistance(rads);
+			}
+		}
+		// Let table know that it has to refresh data, and maybe the whole table too
+		if (distUnitsChanged) {
+			fireTableStructureChanged();
+		}
+		else {
+			fireTableDataChanged();
+		}
+	}
+}