object representing a range
diff --git a/bundles/runtime/org.eclipse.fx.core/src/org/eclipse/fx/core/Range.java b/bundles/runtime/org.eclipse.fx.core/src/org/eclipse/fx/core/Range.java
new file mode 100644
index 0000000..5de1cc8
--- /dev/null
+++ b/bundles/runtime/org.eclipse.fx.core/src/org/eclipse/fx/core/Range.java
@@ -0,0 +1,19 @@
+package org.eclipse.fx.core;
+
+public class Range {
+ public final int start;
+ public final int end;
+
+ public Range(int start, int end) {
+ this.start = start;
+ this.end = end;
+ }
+
+ public static boolean intersects(int start1, int end1, int start2, int end2) {
+ return between(start1, end1, start2) || between(start1, end1, end2);
+ }
+
+ public static boolean between(int start, int end, int value) {
+ return start <= value && end >= value;
+ }
+}
