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/*******************************************************************************
* Copyright (c) 2013, 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:
* Alexandre Montplaisir - Initial API and implementation
* Patrick Tasse - Support selection range
* Xavier Raynaud - Support filters tracking
*******************************************************************************/
package org.eclipse.linuxtools.tmf.core.trace;
import org.eclipse.core.resources.IFile;
import org.eclipse.linuxtools.tmf.core.filter.ITmfFilter;
import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp;
import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange;
import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp;
/**
* Context of a trace, which is the representation of the "view" the user
* currently has on this trace (window time range, selected time or time range).
*
* TODO could be extended to support the notion of current location too.
*
* @author Alexandre Montplaisir
* @since 2.0
*/
final class TmfTraceContext {
static final TmfTraceContext NULL_CONTEXT =
new TmfTraceContext(TmfTimestamp.BIG_CRUNCH, TmfTimestamp.BIG_CRUNCH, TmfTimeRange.NULL_RANGE, null);
private final TmfTimeRange fSelection;
private final TmfTimeRange fWindowRange;
private final IFile fEditorFile;
private final ITmfFilter fFilter;
public TmfTraceContext(ITmfTimestamp beginTs, ITmfTimestamp endTs, TmfTimeRange tr, IFile editorFile) {
fSelection = new TmfTimeRange(beginTs, endTs);
fWindowRange = tr;
fEditorFile = editorFile;
fFilter = null;
}
public TmfTraceContext(TmfTraceContext prevCtx, ITmfTimestamp beginTs, ITmfTimestamp endTs) {
fSelection = new TmfTimeRange(beginTs, endTs);
fWindowRange = prevCtx.fWindowRange;
fEditorFile = prevCtx.fEditorFile;
fFilter = prevCtx.fFilter;
}
public TmfTraceContext(TmfTraceContext prevCtx, TmfTimeRange tr) {
fSelection = prevCtx.fSelection;
fWindowRange = tr;
fEditorFile = prevCtx.fEditorFile;
fFilter = prevCtx.fFilter;
}
/**
* @param prevCtx
* The previous context
* @param filter
* The applied filter
* @since 2.2
*/
public TmfTraceContext(TmfTraceContext prevCtx, ITmfFilter filter) {
fSelection = prevCtx.fSelection;
fWindowRange = prevCtx.fWindowRange;
fEditorFile = prevCtx.fEditorFile;
fFilter = filter;
}
public ITmfTimestamp getSelectionBegin() {
return fSelection.getStartTime();
}
public ITmfTimestamp getSelectionEnd() {
return fSelection.getEndTime();
}
public TmfTimeRange getWindowRange() {
return fWindowRange;
}
public IFile getEditorFile() {
return fEditorFile;
}
/**
* @return the current filter applied to the trace
* @since 2.2
*/
public ITmfFilter getFilter() {
return fFilter;
}
public boolean isValid() {
if (fSelection.getStartTime().compareTo(TmfTimestamp.ZERO) <= 0 ||
fSelection.getEndTime().compareTo(TmfTimestamp.ZERO) <= 0 ||
fWindowRange.getEndTime().compareTo(fWindowRange.getStartTime()) <= 0) {
return false;
}
return true;
}
@Override
public String toString() {
return getClass().getSimpleName() + "[fSelection=" + fSelection + //$NON-NLS-1$
", fWindowRange=" + fWindowRange + ']'; //$NON-NLS-1$
}
}
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