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plantuml/src/net/sourceforge/plantuml/project/core/TaskInstant.java
2020-08-25 19:24:17 +02:00

126 lines
3.2 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML 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, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.project.core;
import net.sourceforge.plantuml.project.time.Wink;
public class TaskInstant {
private final Moment task;
private final TaskAttribute attribute;
private final int delta;
public TaskInstant(Moment task, TaskAttribute attribute) {
this(task, attribute, 0);
}
private TaskInstant(Moment task, TaskAttribute attribute, int delta) {
this.task = task;
this.attribute = attribute;
this.delta = delta;
if (attribute != TaskAttribute.START && attribute != TaskAttribute.END) {
throw new IllegalArgumentException();
}
}
public TaskInstant withDelta(int newDelta) {
return new TaskInstant(task, attribute, newDelta);
}
private Wink manageDelta(Wink value) {
if (delta > 0) {
for (int i = 0; i < delta; i++) {
value = value.increment();
}
}
if (delta < 0) {
for (int i = 0; i < -delta; i++) {
value = value.decrement();
}
}
return value;
}
public Wink getInstantPrecise() {
if (attribute == TaskAttribute.START) {
return manageDelta(task.getStart());
}
if (attribute == TaskAttribute.END) {
return manageDelta(task.getEnd().increment());
}
throw new IllegalStateException();
}
public Wink getInstantTheorical() {
if (attribute == TaskAttribute.START) {
return manageDelta(task.getStart());
}
if (attribute == TaskAttribute.END) {
return manageDelta(task.getEnd());
}
throw new IllegalStateException();
}
@Override
public String toString() {
return attribute.toString() + " of " + task;
}
public final Moment getMoment() {
return task;
}
public final boolean isTask() {
return task instanceof AbstractTask;
}
public final TaskAttribute getAttribute() {
return attribute;
}
public boolean sameRowAs(TaskInstant dest) {
if (this.isTask() && dest.isTask()) {
final AbstractTask t1 = (AbstractTask) this.getMoment();
final AbstractTask t2 = (AbstractTask) dest.getMoment();
if (t1 == t2.getRow() || t2 == t1.getRow()) {
return true;
}
}
return false;
}
}