+ function offsetGet($o) {
+ if (isset($this->data) && !is_array($this->data)) {
+ throw new \UnexpectedValueException("Cell data is not an array");
+ }
+ return $this->data[$o];
+ }
+
+ function offsetSet($o, $v) {
+ if (isset($this->data) && !is_array($this->data)) {
+ throw new \UnexpectedValueException("Cell data is not an array");
+ }
+ if (isset($o)) {
+ $this->data[$o] = $v;
+ } else {
+ $this->data[] = $v;
+ }
+ $this->dirty = true;
+ }
+
+ function offsetExists($o) {
+ if (isset($this->data) && !is_array($this->data)) {
+ throw new \UnexpectedValueException("Cell data is not an array");
+ }
+ return isset($this->data[$o]);
+ }
+
+ function offsetUnset($o) {
+ if (isset($this->data) && !is_array($this->data)) {
+ throw new \UnexpectedValueException("Cell data is not an array");
+ }
+ unset($this->data[$o]);
+ $this->dirty = true;
+ }