Added table sorting, corrected another issue

src/main/java/kieker/gui/model/domain/ExecutionEntry.java

@@ -120,6 +120,9 @@ public final class ExecutionEntry {
 		} else {
 			this.percent = 100.0f;
 		}
+		for (final ExecutionEntry executionEntry : this.children) {
+			executionEntry.updatePercent();
+		}
 	}
 
 	@Override

src/main/java/kieker/gui/view/MainWindow.java

@@ -25,12 +25,14 @@ import kieker.gui.model.Properties;
 import kieker.gui.model.domain.AggregatedExecutionEntry;
 import kieker.gui.model.domain.ExecutionEntry;
 import kieker.gui.model.domain.RecordEntry;
+import kieker.gui.view.util.AbstractDirectedComparator;
 import kieker.gui.view.util.AggregatedExecutionTracesTreeSetDataListener;
 import kieker.gui.view.util.ExecutionTracesTreeSetDataListener;
 import kieker.gui.view.util.RecordEntryTimestampComparator;
 import kieker.gui.view.util.RecordEntryTypeComparator;
 import kieker.gui.view.util.RecordsTableSetDataListener;
 import kieker.gui.view.util.TableColumnSortListener;
+import kieker.gui.view.util.TreeColumnSortListener;
 
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.TreeViewer;
@@ -364,6 +366,19 @@ public final class MainWindow {
 		this.recordsTableTypeColumn.addListener(SWT.Selection, new TableColumnSortListener<RecordEntry>(new RecordEntryTypeComparator()));
 		this.recordsTableRecordColumn.addListener(SWT.Selection, new TableColumnSortListener<RecordEntry>(new RecordEntryTimestampComparator()));
 
+		this.treeColumn_11.addListener(SWT.Selection, new TreeColumnSortListener(new AbstractDirectedComparator<ExecutionEntry>() {
+
+			@Override
+			public int compare(final ExecutionEntry arg0, final ExecutionEntry arg1) {
+				int result = Long.compare(arg0.getDuration(), arg1.getDuration());
+				if (this.getDirection() == SWT.UP) {
+					result = -result;
+				}
+				return result;
+
+			}
+		}));
+
 		this.explorerTree.addSelectionListener(new SelectionAdapter() {
 
 			@Override

src/main/java/kieker/gui/view/util/TreeColumnSortListener.java

+package kieker.gui.view.util;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeColumn;
+
+public final class TreeColumnSortListener<T> implements Listener {
+
+	private final AbstractDirectedComparator<T> comparator;
+
+	public TreeColumnSortListener(final AbstractDirectedComparator<T> comparator) {
+		this.comparator = comparator;
+	}
+
+	@Override
+	public void handleEvent(final Event event) {
+		// Get the necessary information from the event
+		final TreeColumn currentColumn = (TreeColumn) event.widget;
+		final Tree tree = currentColumn.getParent();
+		final TreeColumn sortColumn = tree.getSortColumn();
+
+		// Determine new sort column and direction
+		int direction = tree.getSortDirection();
+		if (sortColumn == currentColumn) {
+			direction = ((direction == SWT.UP) ? SWT.DOWN : SWT.UP);
+		} else {
+			tree.setSortColumn(currentColumn);
+			direction = SWT.UP;
+		}
+
+		// Sort the data
+		this.comparator.setDirection(direction);
+		final List<T> entries = (List<T>) tree.getData();
+		Collections.sort(entries, this.comparator);
+
+		// Update the data displayed in the table
+		tree.setSortDirection(direction);
+		tree.clearAll(true);
+	}
+
+}