package net.sourceforge.ganttproject.task.dependency.constraint;
import java.util.Date;
import net.sourceforge.ganttproject.GanttCalendar;
import net.sourceforge.ganttproject.GanttTaskRelationship;
import net.sourceforge.ganttproject.language.GanttLanguage;
import net.sourceforge.ganttproject.task.Task;
import net.sourceforge.ganttproject.task.TaskActivity;
import net.sourceforge.ganttproject.task.dependency.TaskDependency;
import net.sourceforge.ganttproject.task.dependency.TaskDependencyConstraint;
import net.sourceforge.ganttproject.task.dependency.TaskDependency.ActivityBinding;
/**
* Dependant task starts not earlier than dependee starts Created by IntelliJ
* IDEA. User: bard
*/
public class StartStartConstraintImpl extends ConstraintImpl implements
TaskDependencyConstraint {
public StartStartConstraintImpl() {
super(GanttTaskRelationship.SS, GanttLanguage.getInstance().getText(
"startstart"));
}
public TaskDependencyConstraint.Collision getCollision() {
TaskDependencyConstraint.Collision result = null;
Task dependee = getDependency().getDependee();
Task dependant = getDependency().getDependant();
GanttCalendar dependeeStart = dependee.getStart();
GanttCalendar dependantStart = dependant.getStart();
//
int difference = getDependency().getDifference();
GanttCalendar comparisonDate = dependeeStart.Clone();
comparisonDate.add(difference);
boolean isActive = getDependency().getHardness()==TaskDependency.Hardness.RUBBER ? dependantStart
.compareTo(comparisonDate) < 0 : dependantStart
.compareTo(comparisonDate) != 0;
// GanttCalendar acceptableStart = dependee.getStart();
GanttCalendar acceptableStart = dependee.getStart().Clone();
addDelay(acceptableStart);
result = new TaskDependencyConstraint.DefaultCollision(acceptableStart,
TaskDependencyConstraint.Collision.START_LATER_VARIATION,
isActive);
return result;
}
public ActivityBinding getActivityBinding() {
TaskActivity[] dependantActivities = getDependency().getDependant()
.getActivities();
TaskActivity[] dependeeActivities = getDependency().getDependee()
.getActivities();
TaskActivity theDependant = dependantActivities[0];
TaskActivity theDependee = dependeeActivities[0];
return new DependencyActivityBindingImpl(theDependant, theDependee,
new Date[] { theDependant.getStart(), theDependee.getStart() });
}
}