Changeset 36 for bbtracker_common/trunk/src/org/bbtracker/Utils.java

Timestamp:

07/28/07 19:48:14 (5 years ago)

Author:

saua

Message:

• refactor calculating the displayable strings into its own (abstract) class UnitConverter?
• add calculating the size of the scale bar there as well
• move existing code to MetricUnitConverter? and refactor it quite a bit (lots of code that would be identifcal in ImperialUnitConverter? was moved out)
• implement ImperialUnitConverter?
• make StatusTile? and TrackTile? use those converters
• add setting to Preferences
• add GUI for setting to OptionsForm?

This should fix Issue #13

File:

• bbtracker_common/trunk/src/org/bbtracker/Utils.java (modified) (4 diffs)

bbtracker_common/trunk/src/org/bbtracker/Utils.java

@@ -16 +16 @@
         public static final char SECOND = '\u2033';
 
-        private static final float MS_TO_KMH_FACTOR = 3.6f;
-
         private static final double WGS84_A = 6378137;
 
@@ -37 +35 @@
 
         public static String degreesToString(final double value, final char positiveChar, final char negativeChar) {
+                if (Double.isNaN(value)) {
+                        return "-";
+                }
                 char c;
                 double d;
@@ -131 +132 @@
         }
 
-        /**
-         * @param speed
-         *            the speed in m/s
-         * @return a human readable String containing the speed in km/h.
-         */
-        public static String speedToString(final float speed) {
-                final float value = speed * MS_TO_KMH_FACTOR;
-                return String.valueOf(((int) (value * 10)) / 10f) + " km/h";
-        }
-
-        public static String courseToString(final float course) {
-                if (Float.isNaN(course)) {
-                        return "???" + DEGREE;
-                } else {
-                        return String.valueOf((int) (Math.floor(course + 0.5d))) + DEGREE;
-                }
-        }
-
         public static String dateToString(final Date date) {
                 final String orig = date.toString();
@@ -203 +186 @@
         }
 
-        public static String elevationToString(final float elevation) {
-                return ((int) elevation) + "m";
-        }
-
-        public static String distanceToString(final double length) {
-                if (length < 1000) {
-                        return ((int) length) + "m";
+        /*
+         * (non-Javadoc)
+         * 
+         * @see org.bbtracker.UnitConverter#courseToString(float)
+         */
+        public static String courseToString(final float course) {
+                if (Float.isNaN(course)) {
+                        return "???" + DEGREE;
                 } else {
-                        return String.valueOf(((int) (length / 100)) / 10f) + "km";
+                        return String.valueOf((int) (Math.floor(course + 0.5d))) + DEGREE;
                 }
         }