--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/shared/DoubleUtils.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,81 @@
+package org.dive4elements.river.client.shared;
+
+
+public final class DoubleUtils {
+
+    public static final String DEFAULT_DELIM = " ";
+
+
+    private DoubleUtils() {
+    }
+
+
+    public static Double getDouble(String value) {
+        try {
+            return Double.valueOf(value);
+        }
+        catch (NumberFormatException nfe) {
+            // do nothing
+        }
+
+        return null;
+    }
+
+
+    public static double[] getMinMax(String value) {
+        return getMinMax(value, DEFAULT_DELIM);
+    }
+
+
+    public static double[] getMinMax(String value, String delim) {
+        if (value == null) {
+            return null;
+        }
+
+        String[] values = value.split(delim);
+
+        int     len = values != null ? values.length : 0;
+        double[] mm = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE };
+
+        for (int i = 0; i < len; i++) {
+            Double d = getDouble(values[i]);
+
+            if (d != null) {
+                mm[0] = mm[0] < d ? mm[0] : d;
+                mm[1] = mm[1] > d ? mm[1] : d;
+            }
+        }
+
+        return mm[0] != Double.MAX_VALUE && mm[1] != -Double.MAX_VALUE
+            ? mm
+            : null;
+    }
+
+    /** toIndex is not inclusive, fromIndex is. */
+    static void fill(double[] array, int fromIndex, int toIndex, double val) {
+        for (int i = fromIndex; i < toIndex; i++) {
+            array[i] = val;
+        }
+    }
+
+    /** @see java.util.Arrays.copyOf */
+    public static double[] copyOf(double[] toCopy, int newLen) {
+        double[] nArray = new double[newLen];
+
+        if (toCopy == null) {
+            fill(nArray, 0, nArray.length, 0d);
+            return nArray;
+        }
+
+        int goTo = (newLen < toCopy.length)
+            ? newLen
+            : toCopy.length;
+
+        for (int i = 0; i < goTo; i++) {
+            nArray[i] = toCopy[i];
+        }
+        fill (nArray, goTo, nArray.length, 0d);
+        return nArray;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :