1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard.gui.splash; 22 23 /** 24 * This Timing ramps up linearly from 0 to 1 in a given repeated time interval. 25 * 26 * @author Eric Lafortune 27 */ 28 public class SawToothTiming implements Timing 29 { 30 private final long period; 31 private final long phase; 32 33 34 /** 35 * Creates a new SawToothTiming. 36 * @param period the time period for a full cycle. 37 * @param phase the phase of the cycle, which is added to the actual time. 38 */ SawToothTiming(long period, long phase)39 public SawToothTiming(long period, long phase) 40 { 41 this.period = period; 42 this.phase = phase; 43 } 44 45 46 // Implementation for Timing. 47 getTiming(long time)48 public double getTiming(long time) 49 { 50 // Compute the translated and scaled saw-tooth function. 51 return (double)((time + phase) % period) / (double)period; 52 } 53 } 54