Initialize Keyboard.Key attributes from parent Keyboard.Row

        /** Create an empty key with no attributes. */

        public Key(Row parent) {

            keyboard = parent.parent;

            height = parent.defaultHeight;

            width = parent.defaultWidth;

            gap = parent.defaultHorizontalGap;

            edgeFlags = parent.rowEdgeFlags;

        }

        /** Create a key with the given top-left coordinate and extract its attributes from

            final Key key = new Key(row);

            key.x = x;

            key.y = y;

            key.width = mDefaultWidth;

            key.height = mDefaultHeight;

            key.gap = mDefaultHorizontalGap;

            key.label = String.valueOf(c);

            key.codes = new int[] { c };

            column++;