tmf.ui: Instrument Histogram

Add two flow scope logs and one scope log.

Change-Id: I1b59629da5f7f417880d8f35694fb296eaaddc62
Signed-off-by: Matthew Khouzam <[email protected]>

Author: MatthewKhouzam

tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/histogram/Histogram.java

@@ -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;
@@ -48,6 +51,9 @@
 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.common.core.log.TraceCompassLogUtils;
+import org.eclipse.tracecompass.common.core.log.TraceCompassLogUtils.ScopeLog;
 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;
@@ -110,6 +116,7 @@ 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
 
@@ -250,7 +257,6 @@ public abstract class Histogram implements ControlListener, PaintListener, KeyLi
      */
     static boolean showTraces = true;
 
-
     private boolean fSendTimeAlignSignals = false;
 
     private IStatusLineManager fStatusLineManager;
@@ -655,17 +661,25 @@ 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 (TraceCompassLogUtils.FlowScopeLog fs = new TraceCompassLogUtils.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 (TraceCompassLogUtils.FlowScopeLog fs1 = new TraceCompassLogUtils.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;
                         }
-                        fDataModel.setSelection(fSelectionBegin, fSelectionEnd);
-                        fScaledData = fDataModel.scaleTo(canvasWidth, canvasHeight, 1);
+                    }
+
+                    if (canvasHeight <= 0 || canvasWidth <= 0) {
+                        return;
+                    }
+                    fDataModel.setSelection(fSelectionBegin, fSelectionEnd);
+                    fScaledData = fDataModel.scaleTo(canvasWidth, canvasHeight, 1);
+                    try (TraceCompassLogUtils.FlowScopeLog fs1 = new TraceCompassLogUtils.FlowScopeLogBuilder(LOGGER, Level.FINER, "Histogram:ui").setParentScope(fs).build()) { //$NON-NLS-1$
                         synchronized (fDataModel) {
                             if (fScaledData != null) {
                                 fCanvas.redraw();
@@ -679,16 +693,16 @@ 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();
                         }
-                }
-            });
+                    }
+                });
+            }
         }
     }
 
@@ -786,7 +800,7 @@ 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