org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphTooltipHandler.java

   1
   2 /*****************************************************************************
   3  * Copyright (c) 2007 Intel Corporation, 2009, 2012 Ericsson.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Intel Corporation - Initial API and implementation
  11  *   Vitaly A. Provodin, Intel - Initial API and implementation
  12  *   Alvaro Sanchez-Leon - Updated for TMF
  13  *   Patrick Tasse - Refactoring
  14  *
  15  *****************************************************************************/
  16 package org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets;
  17
  18 import java.text.NumberFormat;
  19 import java.util.Iterator;
  20 import java.util.Map;
  21
  22 import org.eclipse.linuxtools.internal.tmf.ui.Messages;
  23 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphPresentationProvider;
  24 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  25 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  26 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.Resolution;
  27 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  28 import org.eclipse.swt.SWT;
  29 import org.eclipse.swt.events.MouseAdapter;
  30 import org.eclipse.swt.events.MouseEvent;
  31 import org.eclipse.swt.events.MouseMoveListener;
  32 import org.eclipse.swt.events.MouseTrackAdapter;
  33 import org.eclipse.swt.graphics.Point;
  34 import org.eclipse.swt.graphics.Rectangle;
  35 import org.eclipse.swt.layout.GridData;
  36 import org.eclipse.swt.layout.GridLayout;
  37 import org.eclipse.swt.widgets.Composite;
  38 import org.eclipse.swt.widgets.Control;
  39 import org.eclipse.swt.widgets.Display;
  40 import org.eclipse.swt.widgets.Label;
  41 import org.eclipse.swt.widgets.Shell;
  42
  43 /**
  44  * Handler for the tool tips in the generic time graph view.
  45  *
  46  * @version 1.0
  47  * @author Alvaro Sanchez-Leon
  48  * @author Patrick Tasse
  49  */
  50 public class TimeGraphTooltipHandler {
  51
  52     private Shell _tipShell;
  53     private Composite _tipComposite;
  54     private Point _tipPosition;
  55     private final ITimeDataProvider _timeDataProvider;
  56     ITimeGraphPresentationProvider _utilImp = null;
  57
  58     /**
  59      * Standard constructor
  60      *
  61      * @param parent
  62      *            The parent shell (unused, can be null)
  63      * @param rUtilImpl
  64      *            The presentation provider
  65      * @param timeProv
  66      *            The time provider
  67      */
  68     public TimeGraphTooltipHandler(Shell parent, ITimeGraphPresentationProvider rUtilImpl,
  69             ITimeDataProvider timeProv) {
  70
  71         this._utilImp = rUtilImpl;
  72         this._timeDataProvider = timeProv;
  73     }
  74
  75     private void createTooltipShell(Shell parent) {
  76         final Display display = parent.getDisplay();
  77         if (_tipShell != null && ! _tipShell.isDisposed()) {
  78             _tipShell.dispose();
  79         }
  80         _tipShell = new Shell(parent, SWT.ON_TOP | SWT.TOOL);
  81         GridLayout gridLayout = new GridLayout();
  82         gridLayout.numColumns = 2;
  83         gridLayout.marginWidth = 2;
  84         gridLayout.marginHeight = 2;
  85         _tipShell.setLayout(gridLayout);
  86         _tipShell.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
  87
  88         _tipComposite = new Composite(_tipShell, SWT.NONE);
  89         _tipComposite.setLayout(new GridLayout(3, false));
  90         setupControl(_tipComposite);
  91
  92     }
  93
  94     /**
  95      * Callback for the mouse-over tooltip
  96      *
  97      * @param control
  98      *            The control object to use
  99      */
 100     public void activateHoverHelp(final Control control) {
 101         control.addMouseListener(new MouseAdapter() {
 102             @Override
 103             public void mouseDown(MouseEvent e) {
 104                 if (_tipShell != null && ! _tipShell.isDisposed()) {
 105                     _tipShell.dispose();
 106                 }
 107             }
 108         });
 109
 110         control.addMouseMoveListener(new MouseMoveListener() {
 111             @Override
 112             public void mouseMove(MouseEvent e) {
 113                 if (_tipShell != null && ! _tipShell.isDisposed()) {
 114                     _tipShell.dispose();
 115                 }
 116             }
 117         });
 118
 119         control.addMouseTrackListener(new MouseTrackAdapter() {
 120             @Override
 121             public void mouseExit(MouseEvent e) {
 122                 if (_tipShell != null && ! _tipShell.isDisposed()) {
 123                     Point pt = control.toDisplay(e.x, e.y);
 124                     if (! _tipShell.getBounds().contains(pt)) {
 125                         _tipShell.dispose();
 126                     }
 127                 }
 128             }
 129
 130             private void addItem(String name, String value) {
 131                 Label nameLabel = new Label(_tipComposite, SWT.NO_FOCUS);
 132                 nameLabel.setText(name);
 133                 setupControl(nameLabel);
 134                 Label separator = new Label(_tipComposite, SWT.NO_FOCUS | SWT.SEPARATOR | SWT.VERTICAL);
 135                 GridData gd = new GridData(SWT.CENTER, SWT.CENTER, false, false);
 136                 gd.heightHint = nameLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
 137                 separator.setLayoutData(gd);
 138                 setupControl(separator);
 139                 Label valueLabel = new Label(_tipComposite, SWT.NO_FOCUS);
 140                 valueLabel.setText(value);
 141                 setupControl(valueLabel);
 142             }
 143
 144             private void fillValues(Point pt, TimeGraphControl timeGraphControl, ITimeGraphEntry entry) {
 145                 if (entry == null) {
 146                     return;
 147                 }
 148                 if (entry.hasTimeEvents()) {
 149                     long currPixelTime = timeGraphControl.getTimeAtX(pt.x);
 150                     long nextPixelTime = timeGraphControl.getTimeAtX(pt.x + 1);
 151                     if (nextPixelTime == currPixelTime) {
 152                         nextPixelTime++;
 153                     }
 154                     ITimeEvent currEvent = Utils.findEvent(entry, currPixelTime, 0);
 155                     ITimeEvent nextEvent = Utils.findEvent(entry, currPixelTime, 1);
 156
 157                     // if there is no current event at the start of the current pixel range,
 158                     // or if the current event starts before the current pixel range,
 159                     // use the next event as long as it starts within the current pixel range
 160                     if (currEvent == null || currEvent.getTime() < currPixelTime) {
 161                         if (nextEvent != null && nextEvent.getTime() < nextPixelTime) {
 162                             currEvent = nextEvent;
 163                             currPixelTime = nextEvent.getTime();
 164                         }
 165                     }
 166
 167                     // state name
 168                     String stateTypeName = _utilImp.getStateTypeName(entry);
 169                     String entryName = entry.getName();
 170                     if (stateTypeName == null) {
 171                         stateTypeName = _utilImp.getStateTypeName();
 172                     }
 173
 174                     if (!entryName.isEmpty()) {
 175                         addItem(stateTypeName, entry.getName());
 176                     }
 177
 178                     if (currEvent == null) {
 179                         return;
 180                     }
 181
 182                     // state
 183                     String state = _utilImp.getEventName(currEvent);
 184                     if (state != null) {
 185                         addItem(Messages.TmfTimeTipHandler_TRACE_STATE, state);
 186                     }
 187
 188                     // This block receives a list of <String, String> values to be added to the tip table
 189                     Map<String, String> eventAddOns = _utilImp.getEventHoverToolTipInfo(currEvent, currPixelTime);
 190                     if (eventAddOns != null) {
 191                         for (Iterator<String> iter = eventAddOns.keySet().iterator(); iter.hasNext();) {
 192                             String message = iter.next();
 193                             addItem(message, eventAddOns.get(message));
 194                         }
 195                     }
 196
 197                     long eventStartTime = -1;
 198                     long eventDuration = -1;
 199                     long eventEndTime = -1;
 200
 201                     eventStartTime = currEvent.getTime();
 202                     eventDuration = currEvent.getDuration();
 203                     if (eventDuration < 0 && nextEvent != null) {
 204                         eventEndTime = nextEvent.getTime();
 205                         eventDuration = eventEndTime - eventStartTime;
 206                     } else {
 207                         eventEndTime = eventStartTime + eventDuration;
 208                     }
 209
 210                     Resolution res = Resolution.NANOSEC;
 211                     TimeFormat tf = _timeDataProvider.getTimeFormat();
 212                     if (tf == TimeFormat.CALENDAR) {
 213                         addItem(Messages.TmfTimeTipHandler_TRACE_DATE, eventStartTime > -1 ?
 214                                 Utils.formatDate(eventStartTime)
 215                                 : "?"); //$NON-NLS-1$
 216                     }
 217                     if (eventDuration > 0) {
 218                         addItem(Messages.TmfTimeTipHandler_TRACE_START_TIME, eventStartTime > -1 ?
 219                                 Utils.formatTime(eventStartTime, tf, res)
 220                                 : "?"); //$NON-NLS-1$
 221
 222                         addItem(Messages.TmfTimeTipHandler_TRACE_STOP_TIME, eventEndTime > -1 ?
 223                                 Utils.formatTime(eventEndTime, tf, res)
 224                                 : "?"); //$NON-NLS-1$
 225                     } else {
 226                         addItem(Messages.TmfTimeTipHandler_TRACE_EVENT_TIME, eventStartTime > -1 ?
 227                                 Utils.formatTime(eventStartTime, tf, res)
 228                                 : "?"); //$NON-NLS-1$
 229                     }
 230
 231                     if (eventDuration > 0) {
 232                         // Duration in relative format in any case
 233                         if (tf == TimeFormat.CALENDAR) {
 234                             tf = TimeFormat.RELATIVE;
 235                         }
 236                         addItem(Messages.TmfTimeTipHandler_DURATION, eventDuration > -1 ?
 237                                 Utils.formatTime(eventDuration, tf, res)
 238                                 : "?"); //$NON-NLS-1$
 239                     }
 240                 }
 241             }
 242
 243             @Override
 244             public void mouseHover(MouseEvent event) {
 245                 if ((event.stateMask & SWT.BUTTON_MASK) != 0) {
 246                     return;
 247                 }
 248                 Point pt = new Point(event.x, event.y);
 249                 TimeGraphControl timeGraphControl = (TimeGraphControl) event.widget;
 250                 createTooltipShell(timeGraphControl.getShell());
 251                 ITimeGraphEntry entry = timeGraphControl.getEntry(pt);
 252                 for (Control child : _tipComposite.getChildren()) {
 253                     child.dispose();
 254                 }
 255                 fillValues(pt, timeGraphControl, entry);
 256                 if (_tipComposite.getChildren().length == 0) {
 257                     return;
 258                 }
 259                 _tipShell.pack();
 260                 _tipPosition = control.toDisplay(pt);
 261                 _tipShell.pack();
 262                 setHoverLocation(_tipShell, _tipPosition);
 263                 _tipShell.setVisible(true);
 264             }
 265         });
 266     }
 267
 268     private static void setHoverLocation(Shell shell, Point position) {
 269         Rectangle displayBounds = shell.getDisplay().getBounds();
 270         Rectangle shellBounds = shell.getBounds();
 271         if (position.x + shellBounds.width + 16 > displayBounds.width && position.x - shellBounds.width - 16 >= 0) {
 272             shellBounds.x = position.x - shellBounds.width - 16;
 273         } else {
 274             shellBounds.x = Math.max(Math.min(position.x + 16, displayBounds.width - shellBounds.width), 0);
 275         }
 276         if (position.y + shellBounds.height + 16 > displayBounds.height && position.y - shellBounds.height - 16 >= 0) {
 277             shellBounds.y = position.y - shellBounds.height - 16;
 278         } else {
 279             shellBounds.y = Math.max(Math.min(position.y + 16, displayBounds.height - shellBounds.height), 0);
 280         }
 281         shell.setBounds(shellBounds);
 282     }
 283
 284     private void setupControl(Control control) {
 285         control.setForeground(_tipShell.getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND));
 286         control.setBackground(_tipShell.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
 287
 288         control.addMouseListener(new MouseAdapter() {
 289             @Override
 290             public void mouseDown(MouseEvent e) {
 291                 _tipShell.dispose();
 292             }
 293         });
 294
 295         control.addMouseTrackListener(new MouseTrackAdapter() {
 296             @Override
 297             public void mouseExit(MouseEvent e) {
 298                 _tipShell.dispose();
 299             }
 300         });
 301
 302         control.addMouseMoveListener(new MouseMoveListener() {
 303             @Override
 304             public void mouseMove(MouseEvent e) {
 305                 _tipShell.dispose();
 306             }
 307         });
 308     }
 309 }