/*******************************************************************************
* Copyright (c) 2009, 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:
* Francois Chouinard - Initial API and implementation
* Bernd Hufmann - Added possibility to pin view
*******************************************************************************/
package fr.inria.linuxtools.tmf.ui.views;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.part.ViewPart;
import fr.inria.linuxtools.tmf.core.component.ITmfComponent;
import fr.inria.linuxtools.tmf.core.signal.TmfSignal;
import fr.inria.linuxtools.tmf.core.signal.TmfSignalManager;
import fr.inria.linuxtools.tmf.core.trace.ITmfTrace;
import fr.inria.linuxtools.tmf.core.trace.TmfTraceManager;
import fr.inria.linuxtools.tmf.ui.editors.ITmfTraceEditor;
/**
* Basic abstract TMF view class implementation.
*
* It registers any sub class to the signal manager for receiving and sending
* TMF signals.
*
* @version 1.2
* @author Francois Chouinard
*/
public abstract class TmfView extends ViewPart implements ITmfComponent {
private final String fName;
/**
* Action class for pinning of TmfView.
* @since 2.0
*/
protected PinTmfViewAction fPinAction;
/**
* Reference to the trace manager
* @since 2.0
*/
protected final TmfTraceManager fTraceManager;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
/**
* Constructor. Creates a TMF view and registers to the signal manager.
*
* @param viewName
* A view name
*/
public TmfView(String viewName) {
super();
fName = viewName;
fTraceManager = TmfTraceManager.getInstance();
TmfSignalManager.register(this);
}
/**
* Disposes this view and de-registers itself from the signal manager
*/
@Override
public void dispose() {
TmfSignalManager.deregister(this);
super.dispose();
}
// ------------------------------------------------------------------------
// ITmfComponent
// ------------------------------------------------------------------------
@Override
public String getName() {
return fName;
}
@Override
public void broadcast(TmfSignal signal) {
TmfSignalManager.dispatchSignal(signal);
}
/**
* @since 3.0
*/
@Override
public void broadcastAsync(TmfSignal signal) {
TmfSignalManager.dispatchSignalAsync(signal);
}
// ------------------------------------------------------------------------
// View pinning support
// ------------------------------------------------------------------------
/**
* Returns whether the pin flag is set.
* For example, this flag can be used to ignore time synchronization signals from other TmfViews.
*
* @return pin flag
* @since 2.0
*/
public boolean isPinned() {
return ((fPinAction != null) && (fPinAction.isChecked()));
}
/**
* Method adds a pin action to the TmfView. The pin action allows to toggle the <code>fIsPinned</code> flag.
* For example, this flag can be used to ignore time synchronization signals from other TmfViews.
*
* @since 2.0
*/
protected void contributePinActionToToolBar() {
if (fPinAction == null) {
fPinAction = new PinTmfViewAction();
IToolBarManager toolBarManager = getViewSite().getActionBars()
.getToolBarManager();
toolBarManager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
toolBarManager.add(fPinAction);
}
}
/**
* Get the currently selected trace, or 'null' if the active editor is not a
* TMF trace.
*
* @return The active trace, or 'null' if not a trace
* @since 2.0
*/
public ITmfTrace getActiveTrace() {
IEditorPart editor = getSite().getPage().getActiveEditor();
if (editor instanceof ITmfTraceEditor) {
ITmfTrace trace = ((ITmfTraceEditor) editor).getTrace();
return trace;
}
return null;
}
}