Mercurial > dive4elements > river
comparison gwt-client/src/main/java/org/dive4elements/river/client/client/ui/chart/MinMaxStepNaviChartStepper.java @ 9263:abf14917be32
Moved stepping behaviour of NaviOutputChart into an exchangeable strategy.
Allows for distinct values stepping of sinfo flood duration.
| author | gernotbelger |
|---|---|
| date | Tue, 17 Jul 2018 19:48:18 +0200 |
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| children |
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| 9262:fee5fa18361c | 9263:abf14917be32 |
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| 1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by | |
| 3 * Björnsen Beratende Ingenieure GmbH | |
| 4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt | |
| 5 * | |
| 6 * This file is Free Software under the GNU AGPL (>=v3) | |
| 7 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 8 * documentation coming with Dive4Elements River for details. | |
| 9 */ | |
| 10 package org.dive4elements.river.client.client.ui.chart; | |
| 11 | |
| 12 /** | |
| 13 * 'Old' stepping behaviour of the navi chart, as used by WINFO and Fixierungsanalyse. | |
| 14 * | |
| 15 * @author Gernot Belger | |
| 16 */ | |
| 17 public class MinMaxStepNaviChartStepper implements INaviChartStepper { | |
| 18 | |
| 19 private double currentKm; | |
| 20 private final double minKm; | |
| 21 private final double maxKm; | |
| 22 private final double step; | |
| 23 | |
| 24 public MinMaxStepNaviChartStepper(final double minKm, final double maxKm, final double step) { | |
| 25 this.minKm = minKm; | |
| 26 this.maxKm = maxKm; | |
| 27 this.step = step; | |
| 28 | |
| 29 this.currentKm = minKm; | |
| 30 } | |
| 31 | |
| 32 @Override | |
| 33 public double getCurrentKm() { | |
| 34 return this.currentKm; | |
| 35 } | |
| 36 | |
| 37 @Override | |
| 38 public double stepForward() { | |
| 39 | |
| 40 if (this.currentKm >= this.maxKm) | |
| 41 this.currentKm = this.maxKm; | |
| 42 else { | |
| 43 // Why this math? | |
| 44 double newVal = this.currentKm * 100; | |
| 45 newVal += this.step / 10; | |
| 46 this.currentKm = (double) Math.round(newVal) / 100; | |
| 47 } | |
| 48 | |
| 49 return this.currentKm; | |
| 50 } | |
| 51 | |
| 52 @Override | |
| 53 public double stepBackward() { | |
| 54 | |
| 55 if (this.currentKm <= this.minKm) | |
| 56 this.currentKm = this.minKm; | |
| 57 else { | |
| 58 // Why this math? | |
| 59 double newVal = this.currentKm * 100; | |
| 60 newVal -= this.step / 10; | |
| 61 | |
| 62 this.currentKm = ((double) Math.round(newVal) / 100); | |
| 63 } | |
| 64 | |
| 65 return this.currentKm; | |
| 66 } | |
| 67 | |
| 68 @Override | |
| 69 public double setValidCurrentKm(final double userInput) { | |
| 70 | |
| 71 if (userInput > this.maxKm) | |
| 72 this.currentKm = this.maxKm; | |
| 73 else if (userInput < this.minKm) | |
| 74 this.currentKm = this.minKm; | |
| 75 else | |
| 76 this.currentKm = userInput; | |
| 77 | |
| 78 return this.currentKm; | |
| 79 } | |
| 80 } |