projects / deliverable / tracecompass.git / blame
| Commit | Line | Data |
|---|---|---|
| 5791dcef | 1 | /********************************************************************** |
| 60ae41e1 | 2 | * Copyright (c) 2013, 2014 Ericsson |
| 5791dcef BH |
3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are | |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which | |
| 6 | * accompanies this distribution, and is available at | |
| 7 | * http://www.eclipse.org/legal/epl-v10.html | |
| 8 | * | |
| 9 | * Contributors: | |
| 10 | * Bernd Hufmann - Initial API and implementation | |
| 11 | **********************************************************************/ | |
| 12 | package org.eclipse.linuxtools.tmf.ui.viewers.xycharts; | |
| 13 | ||
| 14 | import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp; | |
| 15 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp; | |
| 16 | import org.eclipse.swt.events.MouseEvent; | |
| 17 | import org.eclipse.swt.events.MouseTrackListener; | |
| 18 | import org.swtchart.IAxis; | |
| 19 | ||
| 20 | /** | |
| 21 | * Tool tip provider for TMF chart viewer. It displays the x and y | |
| 22 | * value of the current mouse position. | |
| 23 | * | |
| 24 | * @author Bernd Hufmann | |
| 25 | * @since 3.0 | |
| 26 | */ | |
| 27 | public class TmfSimpleTooltipProvider extends TmfBaseProvider implements MouseTrackListener { | |
| 28 | ||
| 29 | // ------------------------------------------------------------------------ | |
| 30 | // Constructors | |
| 31 | // ------------------------------------------------------------------------ | |
| 32 | /** | |
| 33 | * Constructor for a tool tip provider. | |
| 34 | * | |
| 35 | * @param tmfChartViewer | |
| 36 | * The parent chart viewer | |
| 37 | */ | |
| 38 | public TmfSimpleTooltipProvider(ITmfChartTimeProvider tmfChartViewer) { | |
| 39 | super(tmfChartViewer); | |
| 40 | register(); | |
| 41 | } | |
| 42 | ||
| 43 | // ------------------------------------------------------------------------ | |
| 44 | // TmfBaseProvider | |
| 45 | // ------------------------------------------------------------------------ | |
| 46 | @Override | |
| 47 | public void register() { | |
| 48 | getChart().getPlotArea().addMouseTrackListener(this); | |
| 49 | } | |
| 50 | ||
| 51 | @Override | |
| 52 | public void deregister() { | |
| 53 | if ((getChartViewer().getControl() != null) && !getChartViewer().getControl().isDisposed()) { | |
| 54 | getChart().getPlotArea().removeMouseTrackListener(this); | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | @Override | |
| 59 | public void refresh() { | |
| 60 | // nothing to do | |
| 61 | } | |
| 62 | ||
| 63 | // ------------------------------------------------------------------------ | |
| 64 | // MouseTrackListener | |
| 65 | // ------------------------------------------------------------------------ | |
| 66 | @Override | |
| 67 | public void mouseEnter(MouseEvent e) { | |
| 68 | } | |
| 69 | ||
| 70 | @Override | |
| 71 | public void mouseExit(MouseEvent e) { | |
| 72 | } | |
| 73 | ||
| 74 | @Override | |
| 75 | public void mouseHover(MouseEvent e) { | |
| 76 | if (getChartViewer().getWindowDuration() == 0) { | |
| 77 | return; | |
| 78 | } | |
| 79 | ||
| 80 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
| 81 | IAxis yAxis = getChart().getAxisSet().getYAxis(0); | |
| 82 | ||
| 83 | double xCoordinate = xAxis.getDataCoordinate(e.x); | |
| 84 | double yCoordinate = yAxis.getDataCoordinate(e.y); | |
| 85 | ||
| 86 | ITmfChartTimeProvider viewer = getChartViewer(); | |
| 87 | ||
| 88 | /* set tooltip of current data point */ | |
| 89 | StringBuffer buffer = new StringBuffer(); | |
| 90 | buffer.append("x="); //$NON-NLS-1$ | |
| 91 | buffer.append(new TmfTimestamp((long) xCoordinate + viewer.getTimeOffset(), ITmfTimestamp.NANOSECOND_SCALE).toString()); | |
| 92 | buffer.append("\n"); //$NON-NLS-1$ | |
| 93 | buffer.append("y="); //$NON-NLS-1$ | |
| 94 | buffer.append((long) yCoordinate); | |
| 95 | getChart().getPlotArea().setToolTipText(buffer.toString()); | |
| 96 | } | |
| 97 | } |