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/*******************************************************************************
* Copyright (c) 2004, 2009 Tasktop Technologies and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui.views;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.mylyn.internal.tasks.core.AbstractTask;
import org.eclipse.mylyn.internal.tasks.core.AbstractTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.ScheduledTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.UncategorizedTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.UnmatchedTaskContainer;
import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
import org.eclipse.mylyn.internal.tasks.ui.util.TaskComparator;
import org.eclipse.mylyn.tasks.core.IRepositoryElement;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.ITaskContainer;
/**
* @author Mik Kersten
*/
public class TaskListInterestSorter extends ViewerSorter {
private final TaskKeyComparator taskKeyComparator = new TaskKeyComparator();
@Override
public int compare(Viewer compareViewer, Object o1, Object o2) {
if (o1 instanceof ITaskContainer && o2 instanceof UnmatchedTaskContainer) {
return -1;
} else if (o2 instanceof ITaskContainer && o1 instanceof UnmatchedTaskContainer) {
return 1;
}
if (o1 instanceof ScheduledTaskContainer && o2 instanceof ScheduledTaskContainer) {
ScheduledTaskContainer dateRangeTaskContainer1 = (ScheduledTaskContainer) o1;
ScheduledTaskContainer dateRangeTaskContainer2 = (ScheduledTaskContainer) o2;
return dateRangeTaskContainer1.getDateRange().compareTo(dateRangeTaskContainer2.getDateRange());
} else if (o1 instanceof ITaskContainer && o2 instanceof ScheduledTaskContainer) {
return -1;
} else if (o1 instanceof ScheduledTaskContainer && o2 instanceof ITaskContainer) {
return 1;
}
if (o1 instanceof UncategorizedTaskContainer && o2 instanceof ITaskContainer) {
return -1;
} else if (o1 instanceof ITaskContainer && o2 instanceof UncategorizedTaskContainer) {
return 1;
}
if (!(o1 instanceof ITask) && o2 instanceof ITask) {
return 1;
}
if (!(o1 instanceof ITask)) {//o1 instanceof AbstractTaskContainer || o1 instanceof AbstractRepositoryQuery) {
if (!(o2 instanceof ITask)) {//o2 instanceof AbstractTaskContainer || o2 instanceof AbstractRepositoryQuery) {
return ((IRepositoryElement) o1).getSummary().compareToIgnoreCase(
((IRepositoryElement) o2).getSummary());
} else {
return -1;
}
} else if (o1 instanceof ITaskContainer) {
if (!(o2 instanceof ITask)) {//o2 instanceof AbstractTaskContainer || o2 instanceof AbstractRepositoryQuery) {
return -1;
} else if (o2 instanceof ITaskContainer) {
IRepositoryElement element1 = (IRepositoryElement) o1;
IRepositoryElement element2 = (IRepositoryElement) o2;
AbstractTask task1 = null;
AbstractTask task2 = null;
if (element1 instanceof ITask) {
task1 = (AbstractTask) element1;
}
if (element2 instanceof ITask) {
task2 = (AbstractTask) element2;
}
if (task1 == null && task2 == null) {
return comparePrioritiesAndKeys(element1, element2);
} else if (task1 == null) {
return 1;
} else if (task2 == null) {
return -1;
}
int complete = compareCompleted(task1, task2);
if (complete != 0) {
return complete;
} else {
int due = compareDueDates(task1, task2);
if (due != 0) {
return due;
} else {
int today = compareScheduledDate(task1, task2);
if (today == 0) {
return comparePrioritiesAndKeys(element1, element2);
} else {
return today;
}
}
}
}
}
return 0;
}
private int compareDueDates(ITask task1, ITask task2) {
if (TasksUiPlugin.getTaskActivityManager().isOverdue(task1)
&& !TasksUiPlugin.getTaskActivityManager().isOverdue(task2)) {
return -1;
} else if (!TasksUiPlugin.getTaskActivityManager().isOverdue(task1)
&& TasksUiPlugin.getTaskActivityManager().isOverdue(task2)) {
return 1;
}
return 0;
}
private int compareScheduledDate(AbstractTask task1, AbstractTask task2) {
if (isToday(task1) && !isToday(task2)) {
return -1;
} else if (!isToday(task1) && isToday(task2)) {
return 1;
} else {
return 0;
}
}
private boolean isToday(AbstractTask task) {
return TasksUiPlugin.getTaskActivityManager().isPastReminder(task)
|| TasksUiPlugin.getTaskActivityManager().isScheduledForToday(task);
}
private int compareCompleted(ITask task1, ITask task2) {
if (task1.isCompleted() && !task2.isCompleted()) {
return 1;
} else if (!task1.isCompleted() && task2.isCompleted()) {
return -1;
} else {
return 0;
}
}
private int comparePrioritiesAndKeys(IRepositoryElement element1, IRepositoryElement element2) {
int priority = comparePriorities(element1, element2);
if (priority != 0) {
return priority;
}
int description = compareKeys(element1, element2);
if (description != 0) {
return description;
}
return 0;
}
private int compareKeys(IRepositoryElement element1, IRepositoryElement element2) {
return taskKeyComparator.compare(TaskComparator.getSortableFromElement(element1),
TaskComparator.getSortableFromElement(element2));
}
private int comparePriorities(IRepositoryElement element1, IRepositoryElement element2) {
if (element1 instanceof AbstractTaskContainer && element2 instanceof AbstractTaskContainer) {
return ((AbstractTaskContainer) element1).getPriority().compareTo(
((AbstractTaskContainer) element2).getPriority());
} else {
// TODO: consider implementing
return -1;
}
}
}
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