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/*******************************************************************************
* Copyright (c) 2004, 2011 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.tasks.ui;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.jface.viewers.IFontProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.mylyn.commons.ui.CommonImages;
import org.eclipse.mylyn.commons.ui.compatibility.CommonFonts;
import org.eclipse.mylyn.commons.ui.compatibility.CommonThemes;
import org.eclipse.mylyn.internal.tasks.core.AbstractTask;
import org.eclipse.mylyn.internal.tasks.core.DayDateRange;
import org.eclipse.mylyn.internal.tasks.core.Person;
import org.eclipse.mylyn.internal.tasks.core.RepositoryQuery;
import org.eclipse.mylyn.internal.tasks.core.ScheduledTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.TaskCategory;
import org.eclipse.mylyn.internal.tasks.core.TaskGroup;
import org.eclipse.mylyn.internal.tasks.core.UncategorizedTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.UnmatchedTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.UnsubmittedTaskContainer;
import org.eclipse.mylyn.internal.tasks.core.WeekDateRange;
import org.eclipse.mylyn.internal.tasks.ui.ITasksUiPreferenceConstants;
import org.eclipse.mylyn.internal.tasks.ui.Messages;
import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
import org.eclipse.mylyn.tasks.core.IRepositoryElement;
import org.eclipse.mylyn.tasks.core.IRepositoryQuery;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.ITaskContainer;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.themes.IThemeManager;
/**
* @author Mik Kersten
* @since 3.0
*/
public class TaskElementLabelProvider extends LabelProvider implements IColorProvider, IFontProvider {
private final IThemeManager themeManager = PlatformUI.getWorkbench().getThemeManager();
private boolean wideImages = false;
private class CompositeImageDescriptor {
ImageDescriptor icon;
ImageDescriptor overlayKind;
};
public TaskElementLabelProvider() {
this(false);
}
public TaskElementLabelProvider(boolean wideImages) {
super();
this.wideImages = wideImages;
}
@Override
public Image getImage(Object element) {
CompositeImageDescriptor compositeDescriptor = getImageDescriptor(element);
if (element instanceof ITask) {
if (compositeDescriptor.overlayKind == null) {
compositeDescriptor.overlayKind = CommonImages.OVERLAY_CLEAR;
}
return CommonImages.getCompositeTaskImage(compositeDescriptor.icon, compositeDescriptor.overlayKind,
wideImages);
} else if (element instanceof ITaskContainer) {
return CommonImages.getCompositeTaskImage(compositeDescriptor.icon, CommonImages.OVERLAY_CLEAR, wideImages);
} else {
return CommonImages.getCompositeTaskImage(compositeDescriptor.icon, null, wideImages);
}
}
private CompositeImageDescriptor getImageDescriptor(Object object) {
CompositeImageDescriptor compositeDescriptor = new CompositeImageDescriptor();
if (object instanceof UncategorizedTaskContainer) {
compositeDescriptor.icon = TasksUiImages.CATEGORY_UNCATEGORIZED;
return compositeDescriptor;
} else if (object instanceof UnsubmittedTaskContainer) {
compositeDescriptor.icon = TasksUiImages.CATEGORY_UNCATEGORIZED;
return compositeDescriptor;
} else if (object instanceof TaskCategory) {
compositeDescriptor.icon = TasksUiImages.CATEGORY;
} else if (object instanceof TaskGroup) {
compositeDescriptor.icon = CommonImages.GROUPING;
}
if (object instanceof ITaskContainer) {
IRepositoryElement element = (IRepositoryElement) object;
AbstractRepositoryConnectorUi connectorUi = null;
if (element instanceof ITask) {
ITask repositoryTask = (ITask) element;
connectorUi = TasksUiPlugin.getConnectorUi(((ITask) element).getConnectorKind());
if (connectorUi != null) {
compositeDescriptor.overlayKind = connectorUi.getTaskKindOverlay(repositoryTask);
}
} else if (element instanceof IRepositoryQuery) {
connectorUi = TasksUiPlugin.getConnectorUi(((IRepositoryQuery) element).getConnectorKind());
}
if (connectorUi != null) {
compositeDescriptor.icon = connectorUi.getImageDescriptor(element);
return compositeDescriptor;
} else {
if (element instanceof UnmatchedTaskContainer) {
compositeDescriptor.icon = TasksUiImages.QUERY_UNMATCHED;
} else if (element instanceof RepositoryQuery) {
compositeDescriptor.icon = ((RepositoryQuery) element).getAutoUpdate()
? TasksUiImages.QUERY
: TasksUiImages.QUERY_OFFLINE;
} else if (element instanceof ITask) {
compositeDescriptor.icon = TasksUiImages.TASK;
} else if (element instanceof ScheduledTaskContainer) {
ScheduledTaskContainer scheduledTaskContainer = (ScheduledTaskContainer) element;
if (scheduledTaskContainer.getDateRange() instanceof DayDateRange) {
if (scheduledTaskContainer.isPresent()) {
compositeDescriptor.icon = CommonImages.SCHEDULE_DAY;
} else {
compositeDescriptor.icon = CommonImages.SCHEDULE;
}
} else if (scheduledTaskContainer.getDateRange() instanceof WeekDateRange) {
compositeDescriptor.icon = CommonImages.SCHEDULE_WEEK;
} else {
compositeDescriptor.icon = TasksUiImages.QUERY_UNMATCHED;
}
} else if (element instanceof Person) {
compositeDescriptor.icon = CommonImages.PERSON;
Person person = (Person) element;
TaskRepository repository = TasksUi.getRepositoryManager().getRepository(person.getConnectorKind(),
person.getRepositoryUrl());
if (repository != null
&& !repository.isAnonymous()
&& (repository.getUserName() != null && repository.getUserName().equalsIgnoreCase(
element.getHandleIdentifier()))) {
compositeDescriptor.icon = CommonImages.PERSON_ME;
}
}
return compositeDescriptor;
}
}
return compositeDescriptor;
}
@Override
public String getText(Object object) {
if (object instanceof ITask) {
ITask task = (ITask) object;
String summary = task.getSummary();
if (summary == null) {
summary = Messages.TaskElementLabelProvider__no_summary_available_;
}
String taskKey = task.getTaskKey();
if (taskKey != null) {
return taskKey + ": " + summary; //$NON-NLS-1$
} else {
return summary;
}
} else if (object instanceof IRepositoryElement) {
IRepositoryElement element = (IRepositoryElement) object;
return element.getSummary();
} else {
return super.getText(object);
}
}
public Color getForeground(Object object) {
if (object instanceof AbstractTask) {
AbstractTask task = (AbstractTask) object;
if (task != null) {
if (TasksUiPlugin.getTaskActivityManager().isCompletedToday(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_COMPLETED_TODAY);
} else if (task.isCompleted()) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_COMPLETED);
} else if (TasksUi.getTaskActivityManager().isActive(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_TASK_ACTIVE);
} else if (TasksUiPlugin.getTaskActivityManager().isOverdue(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_OVERDUE);
} else if (TasksUiPlugin.getTaskActivityManager().isDueToday(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_SCHEDULED_TODAY);
} else if (task.getScheduledForDate() != null
&& TasksUiPlugin.getTaskActivityManager().isPastReminder(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_SCHEDULED_PAST);
} else if (TasksUiPlugin.getTaskActivityManager().isOverdueForOther(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_OVERDUE_FOR_OTHERS);
} else if (TasksUiPlugin.getTaskActivityManager().isScheduledForToday(task)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_SCHEDULED_TODAY);
} else if (TasksUiPlugin.getTaskActivityManager().isScheduledForThisWeek(task)) {
return themeManager.getCurrentTheme()
.getColorRegistry()
.get(CommonThemes.COLOR_SCHEDULED_THIS_WEEK);
}
}
} else if (object instanceof ITaskContainer) {
if (object instanceof ScheduledTaskContainer) {
return null;
} else {
for (ITask child : ((ITaskContainer) object).getChildren()) {
if (child.isActive()
|| (child instanceof ITaskContainer && showHasActiveChild((ITaskContainer) child))) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_TASK_ACTIVE);
} else if (TasksUiPlugin.getTaskActivityManager().isOverdue(child)) {
return themeManager.getCurrentTheme().getColorRegistry().get(CommonThemes.COLOR_OVERDUE);
}
}
}
}
return null;
}
public Color getBackground(Object element) {
return null;
}
public Font getFont(Object element) {
if (element instanceof AbstractTask) {
if (((AbstractTask) element).isSynchronizing()) {
if (((AbstractTask) element).isActive()) {
return CommonFonts.BOLD_ITALIC;
} else {
return CommonFonts.ITALIC;
}
}
}
if (element instanceof IRepositoryQuery) {
if (((RepositoryQuery) element).isSynchronizing()) {
return CommonFonts.ITALIC;
}
}
if (element instanceof ITaskContainer) {
for (ITask child : ((ITaskContainer) element).getChildren()) {
if (child.isActive() || (child instanceof ITaskContainer && showHasActiveChild((ITaskContainer) child))) {
return CommonFonts.BOLD;
}
}
}
if (element instanceof AbstractTask) {
if (((AbstractTask) element).isActive()) {
return CommonFonts.BOLD;
} else if (((AbstractTask) element).isCompleted()) {
if (CommonFonts.HAS_STRIKETHROUGH
&& TasksUiPlugin.getDefault()
.getPluginPreferences()
.getBoolean(ITasksUiPreferenceConstants.USE_STRIKETHROUGH_FOR_COMPLETED)) {
return CommonFonts.STRIKETHROUGH;
} else {
return null;
}
}
for (ITask child : ((ITaskContainer) element).getChildren()) {
if (child.isActive() || (child instanceof ITaskContainer && showHasActiveChild((ITaskContainer) child))) {
return CommonFonts.BOLD;
}
}
}
return null;
}
private boolean showHasActiveChild(ITaskContainer container) {
if (!TasksUiPlugin.getDefault().groupSubtasks(container)) {
return false;
}
return showHasActiveChildHelper(container, new HashSet<IRepositoryElement>());
}
private boolean showHasActiveChildHelper(ITaskContainer container, Set<IRepositoryElement> visitedContainers) {
for (IRepositoryElement child : container.getChildren()) {
if (visitedContainers.contains(child)) {
continue;
}
visitedContainers.add(child);
if (child instanceof ITask && ((AbstractTask) child).isActive()) {
return true;
} else if (child instanceof ITaskContainer) {
if (showHasActiveChildHelper((ITaskContainer) child, visitedContainers)) {
return true;
}
}
}
return false;
}
}
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