X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altoslib%2FAltosOrderedMetrumRecord.java;fp=altoslib%2FAltosOrderedMetrumRecord.java;h=02cdf1fe2ab71b0f68d18eea43fcd723bc40c36d;hb=04d7d0f829ba953ffeca8ad9887a4b6b2b5d5087;hp=0000000000000000000000000000000000000000;hpb=dcc51bb18985c24fa35bce0dd42ea3d847b960bf;p=fw%2Faltos diff --git a/altoslib/AltosOrderedMetrumRecord.java b/altoslib/AltosOrderedMetrumRecord.java new file mode 100644 index 00000000..02cdf1fe --- /dev/null +++ b/altoslib/AltosOrderedMetrumRecord.java @@ -0,0 +1,52 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +package org.altusmetrum.altoslib_1; + +import java.text.ParseException; + +/* + * AltosRecords with an index field so they can be sorted by tick while preserving + * the original ordering for elements with matching ticks + */ +class AltosOrderedMetrumRecord extends AltosEepromMetrum implements Comparable { + + public int index; + + public AltosOrderedMetrumRecord(String line, int in_index, int prev_tick, boolean prev_tick_valid) + throws ParseException { + super(line); + if (prev_tick_valid) { + tick |= (prev_tick & ~0xffff); + if (tick < prev_tick) { + if (prev_tick - tick > 0x8000) + tick += 0x10000; + } else { + if (tick - prev_tick > 0x8000) + tick -= 0x10000; + } + } + index = in_index; + } + + public int compareTo(AltosOrderedMetrumRecord o) { + int tick_diff = tick - o.tick; + if (tick_diff != 0) + return tick_diff; + return index - o.index; + } +}