private int[] getStyle(int index) {
		if (m_styleOffsets == null || m_styles == null
				|| index >= m_styleOffsets.length) {
			return null;
		}
		int offset = m_styleOffsets[index] / 4;
		int style[];
		{
			int count = 0;
			for (int i = offset; i < m_styles.length; ++i) {
				if (m_styles[i] == -1) {
					break;
				}
				count += 1;
			}
			if (count == 0 || (count % 3) != 0) {
				return null;
			}
			style = new int[count];
		}
		for (int i = offset, j = 0; i < m_styles.length;) {
			if (m_styles[i] == -1) {
				break;
			}
			style[j++] = m_styles[i++];
		}
		return style;
	}