X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fgui%2FCoordDisplay.java;fp=src%2Ftim%2Fprune%2Fgui%2FCoordDisplay.java;h=45a749a68e30e2caa6dbcfc54e4ac047cdc47e46;hp=0000000000000000000000000000000000000000;hb=8b20e3e027058cdf6ff52993ee5576193d08667a;hpb=2302358503c38817e19f6e529f6c9e530aac0e86

diff --git a/src/tim/prune/gui/CoordDisplay.java b/src/tim/prune/gui/CoordDisplay.java
new file mode 100644
index 0000000..45a749a
--- /dev/null
+++ b/src/tim/prune/gui/CoordDisplay.java
@@ -0,0 +1,58 @@
+package tim.prune.gui;
+
+import tim.prune.data.Coordinate;
+
+/**
+ * Functions for display of coordinates in gui
+ */
+public abstract class CoordDisplay
+{
+
+	/**
+	 * Construct an appropriate coordinate label using the selected format
+	 * @param inCoordinate coordinate
+	 * @param inFormat selected display format
+	 * @return language-sensitive string
+	 */
+	public static String makeCoordinateLabel(Coordinate inCoordinate, int inFormat)
+	{
+		String coord = inCoordinate.output(inFormat);
+		// Fix broken degree signs (due to unicode mangling)
+		final char brokenDeg = 65533;
+		if (coord.indexOf(brokenDeg) >= 0)
+		{
+			coord = coord.replaceAll(String.valueOf(brokenDeg), "\u00B0");
+		}
+		return restrictDP(coord);
+	}
+
+
+	/**
+	 * Restrict the given coordinate to a limited number of decimal places for display
+	 * @param inCoord coordinate string
+	 * @return chopped string
+	 */
+	private static String restrictDP(String inCoord)
+	{
+		final int DECIMAL_PLACES = 7;
+		if (inCoord == null) return "";
+		String result = inCoord;
+		final int dotPos = Math.max(inCoord.lastIndexOf('.'), inCoord.lastIndexOf(','));
+		if (dotPos >= 0)
+		{
+			final int chopPos = dotPos + DECIMAL_PLACES;
+			if (chopPos < (inCoord.length()-1))
+			{
+				result = inCoord.substring(0, chopPos);
+				// Maybe there's an exponential in there too which needs to be appended
+				int expPos = inCoord.toUpperCase().indexOf("E", chopPos);
+				if (expPos > 0 && expPos < (inCoord.length()-1))
+				{
+					result += inCoord.substring(expPos);
+				}
+			}
+		}
+		return result;
+	}
+
+}