/*******************************************************************************
- * Copyright (c) 2011, 2012 Ericsson
- *
+ * Copyright (c) 2011, 2013 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 - Changed to updated histogram data model
- * Francois Chouinard - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.tmf.ui.views.histogram;
import org.eclipse.swt.widgets.Display;
/**
- * <b><u>FullTraceHistogram</u></b>
- * <p>
- * A histogram that displays the full trace.
+ * A histogram widget that displays the event distribution of a whole trace.
* <p>
* It also features a selected range window that can be dragged and zoomed.
+ *
+ * @version 1.1
+ * @author Francois Chouinard
*/
public class FullTraceHistogram extends Histogram implements MouseMoveListener {
private final HistogramZoom fZoom;
- private long fRangeStartTime;
+ private long fRangeStartTime = 0L;
private long fRangeDuration;
// ------------------------------------------------------------------------
// Construction
// ------------------------------------------------------------------------
+ /**
+ * Full Constructor
+ *
+ * @param view A reference to the parent histogram view
+ * @param parent A reference to the parent composite
+ */
public FullTraceHistogram(HistogramView view, Composite parent) {
super(view, parent);
fZoom = new HistogramZoom(this, fCanvas, getStartTime(), getTimeLimit());
// Operations
// ------------------------------------------------------------------------
+ @Override
+ public void clear() {
+ fRangeStartTime = 0L;
+ fRangeDuration = 0L;
+ if (fZoom != null) {
+ fZoom.setFullRange(0L, 0L);
+ fZoom.setNewRange(0L, 0L);
+ }
+ super.clear();
+ }
+
+ /**
+ * Sets the time range of the full histogram.
+ *
+ * @param startTime A start time
+ * @param endTime A end time
+ */
public void setFullRange(long startTime, long endTime) {
fZoom.setFullRange(startTime, endTime);
}
+ /**
+ * Sets the selected time range.
+ *
+ * @param startTime The histogram start time
+ * @param duration The histogram duration
+ */
public void setTimeRange(long startTime, long duration) {
fRangeStartTime = startTime;
fRangeDuration = duration;
@Override
public void mouseDown(MouseEvent event) {
- // Check if we are outside the time range; if so, just set the current
- // event
- long timestamp = getTimestamp(event.x);
- if (timestamp < fZoom.getStartTime() || timestamp > fZoom.getEndTime()) {
- super.mouseDown(event);
- return;
- }
-
- // Otherwise start moving the range window
fMouseDown = true;
fStartPosition = event.x;
}
public void mouseUp(MouseEvent event) {
if (fMouseDown) {
fMouseDown = false;
- ((HistogramView) fParentView).updateTimeRange(fRangeStartTime, fRangeStartTime + fZoom.getDuration());
+ // Check if mouse click without move; if so, just set the current event time
+ if (event.x == fStartPosition) {
+ super.mouseDown(event);
+ return;
+ }
+
+ ((HistogramView) fParentView).updateTimeRange(fRangeStartTime, fRangeStartTime + fRangeDuration);
+
}
}
+
// ------------------------------------------------------------------------
// MouseMoveListener
// ------------------------------------------------------------------------
@Override
public void mouseMove(MouseEvent event) {
+
if (fMouseDown) {
int nbBuckets = event.x - fStartPosition;
long delta = nbBuckets * fScaledData.fBucketDuration;
long newStart = fZoom.getStartTime() + delta;
- if (newStart < getStartTime())
+ if (newStart < getStartTime()) {
newStart = getStartTime();
+ }
long newEnd = newStart + fZoom.getDuration();
if (newEnd > getEndTime()) {
newEnd = getEndTime();
Image rangeRectangleImage = new Image(image.getDevice(), image, SWT.IMAGE_COPY);
GC rangeWindowGC = new GC(rangeRectangleImage);
- if (fScaledData != null && fRangeStartTime != 0) {
- drawTimeRangeWindow(rangeWindowGC, rangeRectangleImage);
+ if ((fScaledData != null) && (fRangeStartTime != 0)) {
+ drawTimeRangeWindow(rangeWindowGC);
}
// Draws the buffer image onto the canvas.
rangeRectangleImage.dispose();
}
- private void drawTimeRangeWindow(GC imageGC, Image image) {
+ private void drawTimeRangeWindow(GC imageGC) {
// Map times to histogram coordinates
- long bucketSpan = fScaledData.fBucketDuration;
+ long bucketSpan = Math.max(fScaledData.fBucketDuration, 1);
int rangeWidth = (int) (fRangeDuration / bucketSpan);
int left = (int) ((fRangeStartTime - fDataModel.getFirstBucketTime()) / bucketSpan);
int right = left + rangeWidth;
int center = (left + right) / 2;
- int height = fCanvas.getSize().y - 2;
+ int height = fCanvas.getSize().y;
// Draw the selection window
imageGC.setForeground(fTimeRangeColor);
imageGC.setLineWidth(1);
imageGC.setLineStyle(SWT.LINE_SOLID);
- int chHalfWidth = ((rangeWidth < 60) ? rangeWidth * 2 / 3 : 40) / 2;
+ int chHalfWidth = ((rangeWidth < 60) ? (rangeWidth * 2) / 3 : 40) / 2;
imageGC.drawLine(center - chHalfWidth, height / 2, center + chHalfWidth, height / 2);
- imageGC.drawLine(center, height / 2 - chHalfWidth, center, height / 2 + chHalfWidth);
+ imageGC.drawLine(center, (height / 2) - chHalfWidth, center, (height / 2) + chHalfWidth);
}
}
projects / deliverable / tracecompass.git / blobdiff