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Diffstat (limited to 'tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/statistics/TmfStatisticsView.java')
| -rwxr-xr-x | tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/statistics/TmfStatisticsView.java | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/statistics/TmfStatisticsView.java b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/statistics/TmfStatisticsView.java new file mode 100755 index 0000000000..540eec15b8 --- /dev/null +++ b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/statistics/TmfStatisticsView.java @@ -0,0 +1,223 @@ +/******************************************************************************* + * Copyright (c) 2011, 2014 Ericsson + * + * 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: + * Mathieu Denis <mathieu.denis@polymtl.ca> - Generalized version based on LTTng + * Bernd Hufmann - Updated to use trace reference in TmfEvent and streaming + * Mathieu Denis - New request added to update the statistics from the selected time range + * Mathieu Denis - Generalization of the view to instantiate a viewer specific to a trace type + * + *******************************************************************************/ + +package org.eclipse.tracecompass.tmf.ui.views.statistics; + +import org.eclipse.jdt.annotation.NonNull; +import org.eclipse.swt.SWT; +import org.eclipse.swt.widgets.Composite; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler; +import org.eclipse.tracecompass.tmf.core.signal.TmfTraceClosedSignal; +import org.eclipse.tracecompass.tmf.core.signal.TmfTraceOpenedSignal; +import org.eclipse.tracecompass.tmf.core.signal.TmfTraceRangeUpdatedSignal; +import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal; +import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; +import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager; +import org.eclipse.tracecompass.tmf.ui.viewers.ITmfViewer; +import org.eclipse.tracecompass.tmf.ui.viewers.statistics.TmfStatisticsViewer; +import org.eclipse.tracecompass.tmf.ui.views.TmfView; +import org.eclipse.tracecompass.tmf.ui.widgets.tabsview.TmfViewerFolder; + +/** + * The generic Statistics View displays statistics for any kind of traces. + * + * It is implemented according to the MVC pattern. - The model is a + * TmfStatisticsTreeNode built by the State Manager. - The view is built with a + * TreeViewer. - The controller that keeps model and view synchronized is an + * observer of the model. + * + * @author Mathieu Denis + */ +public class TmfStatisticsView extends TmfView { + + /** + * The ID corresponds to the package in which this class is embedded. + */ + public static final @NonNull String ID = "org.eclipse.linuxtools.tmf.ui.views.statistics"; //$NON-NLS-1$ + + /** + * The view name. + */ + public static final String TMF_STATISTICS_VIEW = "StatisticsView"; //$NON-NLS-1$ + + /** + * The viewer that builds the columns to show the statistics. + */ + protected final TmfViewerFolder fStatsViewers; + + /** + * Stores a reference to the selected trace. + */ + private ITmfTrace fTrace; + + /** + * Constructor of a statistics view. + * + * @param viewName The name to give to the view. + */ + public TmfStatisticsView(String viewName) { + super(viewName); + /* + * Create a fake parent for initialization purpose, than set the parent + * as soon as createPartControl is called. + */ + Composite temporaryParent = new Shell(); + fStatsViewers = new TmfViewerFolder(temporaryParent); + } + + /** + * Default constructor. + */ + public TmfStatisticsView() { + this(TMF_STATISTICS_VIEW); + } + + @Override + public void createPartControl(Composite parent) { + fStatsViewers.setParent(parent); + createStatisticsViewers(); + + ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace(); + if (trace != null) { + traceSelected(new TmfTraceSelectedSignal(this, trace)); + } + } + + @Override + public void dispose() { + super.dispose(); + fStatsViewers.dispose(); + } + + /** + * Handler called when an trace is opened. + * + * @param signal + * Contains the information about the selection. + */ + @TmfSignalHandler + public void traceOpened(TmfTraceOpenedSignal signal) { + /* + * Dispose the current viewer and adapt the new one to the trace + * type of the trace opened + */ + fStatsViewers.clear(); + // Update the current trace + fTrace = signal.getTrace(); + createStatisticsViewers(); + fStatsViewers.layout(); + } + + /** + * Handler called when an trace is selected. Checks if the trace + * has changed and requests the selected trace if it has not yet been + * cached. + * + * @param signal + * Contains the information about the selection. + */ + @TmfSignalHandler + public void traceSelected(TmfTraceSelectedSignal signal) { + // Does not reload the same trace if already opened + if (signal.getTrace() != fTrace) { + /* + * Dispose the current viewer and adapt the new one to the trace + * type of the trace selected + */ + fStatsViewers.clear(); + // Update the current trace + fTrace = signal.getTrace(); + createStatisticsViewers(); + fStatsViewers.layout(); + + TmfTraceRangeUpdatedSignal updateSignal = new TmfTraceRangeUpdatedSignal(this, fTrace, fTrace.getTimeRange()); + + for (ITmfViewer viewer : fStatsViewers.getViewers()) { + TmfStatisticsViewer statsViewer = (TmfStatisticsViewer) viewer; + statsViewer.sendPartialRequestOnNextUpdate(); + statsViewer.traceRangeUpdated(updateSignal); + } + } else { + /* + * If the same trace is reselected, sends a notification to + * the viewers to make sure they reload correctly their partial + * event count. + */ + for (ITmfViewer viewer : fStatsViewers.getViewers()) { + TmfStatisticsViewer statsViewer = (TmfStatisticsViewer) viewer; + // Will update the partial event count if needed. + statsViewer.sendPartialRequestOnNextUpdate(); + } + } + } + + /** + * @param signal the incoming signal + */ + @TmfSignalHandler + public void traceClosed(TmfTraceClosedSignal signal) { + if (signal.getTrace() != fTrace) { + return; + } + + // Clear the internal data + fTrace = null; + + // Clear the UI widgets + fStatsViewers.clear(); // Also cancels ongoing requests + createStatisticsViewers(); + fStatsViewers.layout(); + } + + @Override + public void setFocus() { + fStatsViewers.setFocus(); + } + + /** + * Creates the statistics viewers for all traces in an experiment and + * populates a viewer folder. Each viewer is placed in a different tab and + * the first one is selected automatically. + * + * It uses the extension point that defines the statistics viewer to build + * from the trace type. If no viewer is defined, another tab won't be + * created, since the global viewer already contains all the basic + * statistics. If there is no trace selected, a global statistics viewer will + * still be created. + */ + protected void createStatisticsViewers() { + // Default style for the tabs that will be created + int defaultStyle = SWT.NONE; + + // The folder composite that will contain the tabs + Composite folder = fStatsViewers.getParentFolder(); + + // Instantiation of the global viewer + if (fTrace != null) { + // Shows the name of the trace in the global tab + TmfStatisticsViewer globalViewer = new TmfStatisticsViewer(folder, Messages.TmfStatisticsView_GlobalTabName + " - " + fTrace.getName(), fTrace); //$NON-NLS-1$ + fStatsViewers.addTab(globalViewer, Messages.TmfStatisticsView_GlobalTabName, defaultStyle); + + } else { + // There is no trace selected. Shows an empty global tab + TmfStatisticsViewer globalViewer = new TmfStatisticsViewer(folder, Messages.TmfStatisticsView_GlobalTabName, fTrace); + fStatsViewers.addTab(globalViewer, Messages.TmfStatisticsView_GlobalTabName, defaultStyle); + } + // Makes the global viewer visible + fStatsViewers.setSelection(0); + } +} |