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copied!<pre><code>public function split(onGroup:CellGroup, directionToMoveSplitCells:String):CellGroup { if (!hasIntersection(onGroup)) return this; var newGroup:CellGroup; if (directionToMoveSplitCells == "RIGHT") { newGroup = splitGroupAndMoveSplitCellsRight(onGroup); if (!newGroup) return; insertAsNextGroupInLinkedList(newGroup); } else { newGroup = splitGroupAndMoveSplitCellsLeft(onGroup); if (!newGroup) return; insertAsPreviousGroupInLinkedList(newGroup); x = (onGroup.endIndex + 1) * cellSize.width; } removeArrayOfCellsFromGroup(splitCells); row.joinGroups(); row.updateGroupIndices(); repositionCellsInGroup(); return newGroup; } private function splitGroupAndMoveSplitCellsRight(onGroup:CellGroup):CellGroup { var numCellsToSplit:int = endIndex - onGroup.startIndex + 1; var splitStartIndex:int = length - numberOfCellsToSplit; var splitCells:Array = trimCells(splitStartIndex, numberOfCellsToSplit); if (!splitCells.length) return null; var resultingGroupStartIndex:int = onGroup.endIndex + 1; return row.createGroup(splitCells, resultingGroupStartIndex); } private function splitGroupAndMoveSplitCellsLeft(onGroup:CellGroup):CellGroup { var numCellsToSplit:int = onGroup.endIndex - startIndex + 1; var splitStartIndex:int = 0; var splitCells:Array = trimCells(splitStartIndex, numberOfCellsToSplit); if (!splitCells.length) return null; var resultingGroupStartIndex:int = onGroup.startIndex - splitCells.length; return row.createGroup(splitCells, resultingGroupStartIndex); } private function insertAsNextGroupInLinkedList(group:CellGroup):void { var currentNextGroup:CellGroup = nextGroup; if (currentNextGroup) { group.nextGroup = currentNextGroup; currentNextGroup.previousGroup = group; } group.previousGroup = this; nextGroup = group; } private function insertAsPreviousGroupInLinkedList(group:CellGroup):void { var currentPreviousGroup:CellGroup = previousGroup; if (currentPreviousGroup) { group.previousGroup = currentPreviousGroup; currentPreviousGroup.nextGroup = group; } group.nextGroup = this; previousGroup = group; } </code></pre>

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