1 files changed, 64 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/OffsetValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/OffsetValidator.xtend
new file mode 100644
index 0000000..57ea7b4
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/OffsetValidator.xtend
@@ -0,0 +1,64 @@
+package rba.tool.editor.validation.validators
+
+import org.eclipse.xtext.validation.Check
+import org.eclipse.xtext.validation.EValidatorRegistrar
+import rba.tool.editor.messages.Messages
+import rba.tool.editor.validation.AbstractRBAModelValidator
+import rba.view.Area
+import rba.view.Offset
+import rba.view.PositionContainer
+import rba.view.RBAViewPackage
+import rba.view.SizeIdentifier
+import rba.view.SizeReference
+
+class OffsetValidator extends AbstractRBAModelValidator {
+
+	private String OFFSET_SIZE_DUPLICATE = Messages.OFFSET_SIZE_DUPLICATE;
+
+	private String OFFSET_SIZE_AREA_REF = Messages.OFFSET_SIZE_AREA_REF;
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkOffset(Offset offset) {
+		var parent = offset.eContainer as PositionContainer
+		for (Offset target : parent.offset) {
+			if (target != offset) {
+				if (target.size.size == offset.size.size) {
+					warning(OFFSET_SIZE_DUPLICATE, RBAViewPackage.Literals.OFFSET__SIZE);
+					return;
+				}
+			}
+		}
+
+		if (!hasSameSizeInArea(parent, offset)) {
+			warning(OFFSET_SIZE_AREA_REF, RBAViewPackage.Literals.OFFSET__SIZE);
+			return;
+		}
+	}
+
+	def hasSameSizeInArea(PositionContainer parent, Offset offset) {
+		var chk = false;
+
+		if (!(parent.area instanceof Area)) {
+			return false
+		}
+
+		var area = parent.area as Area
+		for (SizeIdentifier sizeId : area.size) {
+			if (sizeId instanceof SizeReference) {
+				var sizeRef = sizeId as SizeReference
+				if (sizeRef.size == offset.size.size) {
+					chk = true
+				}
+			}
+		}
+		if (chk == true) {
+			return true;
+		}
+
+		return false;
+	}
+}