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

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