@Override
	public String toString() {
		StringBuilder buffy = new StringBuilder();
		buffy.append("Grid Bounds: ");
		if (minRow == Integer.MAX_VALUE) {
			return "Empty";
		}

		buffy.append("rows: ").append(minRow).append(" -> ").append(maxRow);
		buffy.append(",  ");
		buffy.append("cols: ").append(minCol).append(" -> ").append(maxCol);
		return buffy.toString();
	}
Shifts the columns bounds by the given amount
@param rowShift the amount to shift the row bounds.
@param colShift the amount to shift the column bounds.
@throws IllegalArgumentException if the shift would make the minimum column negative
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/layout/GridBounds.java