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Merged
MatthewKhouzam merged 2 commits into from
Oct 24, 2025
Merged

tmf.ui: instrument histogram #181

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7520326
tmf.ui: Instrument Histogram
MatthewKhouzam Nov 19, 2024
6693036
tmf.ui: Add early exit to Histogram
MatthewKhouzam Nov 19, 2024
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56 changes: 39 additions & 17 deletions ...se.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/histogram/Histogram.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,9 @@

package org.eclipse.tracecompass.tmf.ui.views.histogram;

import java.util.logging.Level;
import java.util.logging.Logger;

import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jface.action.IStatusLineManager;
import org.eclipse.jface.layout.GridDataFactory;
Expand Down Expand Up @@ -48,6 +51,7 @@
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.tracecompass.common.core.log.TraceCompassLog;
import org.eclipse.tracecompass.internal.tmf.ui.views.histogram.HistogramTimeAdapter;
import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler;
import org.eclipse.tracecompass.tmf.core.signal.TmfSignalManager;
Expand All @@ -67,6 +71,10 @@
import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.ITimeDataProvider;
import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphColorScheme;
import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.TimeGraphScale;
import org.eclipse.tracecompass.traceeventlogger.LogUtils;
import org.eclipse.tracecompass.traceeventlogger.LogUtils.ScopeLog;

import com.google.common.base.Objects;

/**
* Re-usable histogram widget.
Expand Down Expand Up @@ -110,6 +118,7 @@ public abstract class Histogram implements ControlListener, PaintListener, KeyLi
// ------------------------------------------------------------------------

private static final int TIME_SCALE_HEIGHT = 27;
private static final Logger LOGGER = TraceCompassLog.getLogger(Histogram.class);

// Histogram colors

Expand Down Expand Up @@ -250,7 +259,6 @@ public abstract class Histogram implements ControlListener, PaintListener, KeyLi
*/
static boolean showTraces = true;


private boolean fSendTimeAlignSignals = false;

private IStatusLineManager fStatusLineManager;
Expand Down Expand Up @@ -655,17 +663,31 @@ protected void moveCursor(final int keyCode) {
*/
@Override
public void modelUpdated() {
if (!fCanvas.isDisposed() && fCanvas.getDisplay() != null) {
fCanvas.getDisplay().asyncExec(() -> {
if (!fCanvas.isDisposed()) {
// Retrieve and normalize the data
final int canvasWidth = fCanvas.getBounds().width;
final int canvasHeight = fCanvas.getBounds().height;
if (canvasWidth <= 0 || canvasHeight <= 0) {
return;
try (LogUtils.FlowScopeLog fs = new LogUtils.FlowScopeLogBuilder(LOGGER, Level.FINER, "Histogram:ModelUpdated").setCategory("Histogram").build()) { //$NON-NLS-1$ //$NON-NLS-2$
if (!fCanvas.isDisposed() && fCanvas.getDisplay() != null) {
fCanvas.getDisplay().asyncExec(() -> {
int canvasWidth = -1;
int canvasHeight = -1;
try (LogUtils.FlowScopeLog fs1 = new LogUtils.FlowScopeLogBuilder(LOGGER, Level.FINER, "Histogram:getBounds").setParentScope(fs).build()) { //$NON-NLS-1$
if (!fCanvas.isDisposed()) {
// Retrieve and normalize the data
canvasWidth = fCanvas.getBounds().width;
canvasHeight = fCanvas.getBounds().height;
}
}

if (canvasHeight <= 0 || canvasWidth <= 0) {
return;
}
try (LogUtils.FlowScopeLog fs1 = new LogUtils.FlowScopeLogBuilder(LOGGER, Level.FINER, "Histogram:scaleData").setParentScope(fs).build()) { //$NON-NLS-1$
fDataModel.setSelection(fSelectionBegin, fSelectionEnd);
fScaledData = fDataModel.scaleTo(canvasWidth, canvasHeight, 1);
HistogramScaledData scaledData = fDataModel.scaleTo(canvasWidth, canvasHeight, 1);
if (Objects.equal(scaledData, fScaledData)) {
return;
}
fScaledData = scaledData;
}
try (LogUtils.FlowScopeLog fs1 = new LogUtils.FlowScopeLogBuilder(LOGGER, Level.FINER, "Histogram:redraw").setParentScope(fs).build()) { //$NON-NLS-1$
synchronized (fDataModel) {
if (fScaledData != null) {
fCanvas.redraw();
Expand All @@ -679,16 +701,16 @@ public void modelUpdated() {
GridData gd = (GridData) fMaxNbEventsLabel.getLayoutData();
gd.widthHint = Math.max(gd.widthHint, fMaxNbEventsLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT).x);
fMaxNbEventsLabel.getParent().layout();
if (old.length() < fMaxNbEventsLabel.getText().length()) {
if ((fSendTimeAlignSignals) && (fParentView instanceof ITmfTimeAligned)) {
TmfSignalManager.dispatchSignal(new TmfTimeViewAlignmentSignal(this, ((ITmfTimeAligned) fParentView).getTimeViewAlignmentInfo(), true));
}
if (old.length() < fMaxNbEventsLabel.getText().length() && (fSendTimeAlignSignals) && (fParentView instanceof ITmfTimeAligned)) {
TmfSignalManager.dispatchSignal(new TmfTimeViewAlignmentSignal(this, ((ITmfTimeAligned) fParentView).getTimeViewAlignmentInfo(), true));
}

}
fTimeLineScale.redraw();
}
}
});
}
});
}
}
}

Expand Down Expand Up @@ -786,7 +808,7 @@ private void formatImage(final GC imageGC, final Image image) {

final HistogramScaledData scaledData = new HistogramScaledData(fScaledData);

try {
try (ScopeLog sl = new ScopeLog(LOGGER, Level.FINER, "Histogram:FmtImg")) { //$NON-NLS-1$
final int height = image.getBounds().height;

// Clear the drawing area
Expand Down
30 changes: 30 additions & 0 deletions ...mpass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/histogram/HistogramScaledData.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
package org.eclipse.tracecompass.tmf.ui.views.histogram;

import java.util.Arrays;
import java.util.Objects;

/**
* Convenience class/struct for scaled histogram data.
Expand Down Expand Up @@ -232,4 +233,33 @@ private int getOffsetIndex(int index) {
public long getBucketEndTime(int index) {
return getBucketStartTime(index + 1);
}

@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + Arrays.hashCode(fData);
result = prime * result + Arrays.hashCode(fLostEventsData);
result = prime * result
+ Objects.hash(fBarWidth, fBucketDuration, fFirstBucketTime, fFirstEventTime, fHeight, fLastBucket, fMaxCombinedValue, fMaxValue, fScalingFactor, fScalingFactorCombined, fSelectionBeginBucket, fSelectionEndBucket, fWidth);
return result;
}

@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
HistogramScaledData other = (HistogramScaledData) obj;
return fBarWidth == other.fBarWidth && Double.doubleToLongBits(fBucketDuration) == Double.doubleToLongBits(other.fBucketDuration) && Arrays.equals(fData, other.fData) && fFirstBucketTime == other.fFirstBucketTime
&& fFirstEventTime == other.fFirstEventTime && fHeight == other.fHeight && fLastBucket == other.fLastBucket && Arrays.equals(fLostEventsData, other.fLostEventsData) && fMaxCombinedValue == other.fMaxCombinedValue
&& fMaxValue == other.fMaxValue && Double.doubleToLongBits(fScalingFactor) == Double.doubleToLongBits(other.fScalingFactor) && Double.doubleToLongBits(fScalingFactorCombined) == Double.doubleToLongBits(other.fScalingFactorCombined)
&& fSelectionBeginBucket == other.fSelectionBeginBucket && fSelectionEndBucket == other.fSelectionEndBucket && fWidth == other.fWidth;
}
}
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