01: /*
02: * ProGuard -- shrinking, optimization, obfuscation, and preverification
03: * of Java bytecode.
04: *
05: * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
06: *
07: * This program is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License as published by the Free
09: * 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 VariableDouble varies linearly with respect to its Timing.
25: *
26: * @author Eric Lafortune
27: */
28: public class LinearDouble implements VariableDouble {
29: private final double fromValue;
30: private final double toValue;
31: private final Timing timing;
32:
33: /**
34: * Creates a new LinearDouble.
35: * @param fromValue the value that corresponds to a timing of 0.
36: * @param toValue the value that corresponds to a timing of 1.
37: * @param timing the applied timing.
38: */
39: public LinearDouble(double fromValue, double toValue, Timing timing) {
40: this .fromValue = fromValue;
41: this .toValue = toValue;
42: this .timing = timing;
43: }
44:
45: // Implementation for VariableDouble.
46:
47: public double getDouble(long time) {
48: return fromValue + timing.getTiming(time)
49: * (toValue - fromValue);
50: }
51: }
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