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

   1 /*****************************************************************************
   2  * Copyright (c) 2007, 2013 Intel Corporation, 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.model.NullTimeEvent;
  25 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.Resolution;
  26 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  27 import org.eclipse.swt.SWT;
  28 import org.eclipse.swt.events.MouseAdapter;
  29 import org.eclipse.swt.events.MouseEvent;
  30 import org.eclipse.swt.events.MouseMoveListener;
  31 import org.eclipse.swt.events.MouseTrackAdapter;
  32 import org.eclipse.swt.graphics.Point;
  33 import org.eclipse.swt.graphics.Rectangle;
  34 import org.eclipse.swt.layout.GridData;
  35 import org.eclipse.swt.layout.GridLayout;
  36 import org.eclipse.swt.widgets.Composite;
  37 import org.eclipse.swt.widgets.Control;
  38 import org.eclipse.swt.widgets.Display;
  39 import org.eclipse.swt.widgets.Label;
  40 import org.eclipse.swt.widgets.Shell;
  41
  42 /**
  43  * Handler for the tool tips in the generic time graph view.
  44  *
  45  * @version 1.0
  46  * @author Alvaro Sanchez-Leon
  47  * @author Patrick Tasse
  48  */
  49 public class TimeGraphTooltipHandler {
  50
  51     private static final int OFFSET = 16;
  52
  53     private Shell fTipShell;
  54     private Composite fTipComposite;
  55     private final ITimeDataProvider fTimeDataProvider;
  56     private ITimeGraphPresentationProvider fTimeGraphProvider = null;
  57
  58     /**
  59      * Standard constructor
  60      *
  61      * @param graphProv
  62      *            The presentation provider
  63      * @param timeProv
  64      *            The time provider
  65      *
  66      * @since 2.0
  67      */
  68     public TimeGraphTooltipHandler(ITimeGraphPresentationProvider graphProv,
  69             ITimeDataProvider timeProv) {
  70
  71         this.fTimeGraphProvider = graphProv;
  72         this.fTimeDataProvider = timeProv;
  73     }
  74
  75     private void createTooltipShell(Shell parent) {
  76         final Display display = parent.getDisplay();
  77         if (fTipShell != null && ! fTipShell.isDisposed()) {
  78             fTipShell.dispose();
  79         }
  80         fTipShell = 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         fTipShell.setLayout(gridLayout);
  86         fTipShell.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
  87
  88         fTipComposite = new Composite(fTipShell, SWT.NONE);
  89         fTipComposite.setLayout(new GridLayout(3, false));
  90         setupControl(fTipComposite);
  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 (fTipShell != null && ! fTipShell.isDisposed()) {
 105                     fTipShell.dispose();
 106                 }
 107             }
 108         });
 109
 110         control.addMouseMoveListener(new MouseMoveListener() {
 111             @Override
 112             public void mouseMove(MouseEvent e) {
 113                 if (fTipShell != null && ! fTipShell.isDisposed()) {
 114                     fTipShell.dispose();
 115                 }
 116             }
 117         });
 118
 119         control.addMouseTrackListener(new MouseTrackAdapter() {
 120             @Override
 121             public void mouseExit(MouseEvent e) {
 122                 if (fTipShell != null && ! fTipShell.isDisposed()) {
 123                     Point pt = control.toDisplay(e.x, e.y);
 124                     if (! fTipShell.getBounds().contains(pt)) {
 125                         fTipShell.dispose();
 126                     }
 127                 }
 128             }
 129
 130             private void addItem(String name, String value) {
 131                 Label nameLabel = new Label(fTipComposite, SWT.NO_FOCUS);
 132                 nameLabel.setText(name);
 133                 setupControl(nameLabel);
 134                 Label separator = new Label(fTipComposite, 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(fTipComposite, 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                         (nextEvent != null && nextEvent.getTime() < nextPixelTime)) {
 162                         currEvent = nextEvent;
 163                         currPixelTime = nextEvent.getTime();
 164                     }
 165
 166                     // state name
 167                     String stateTypeName = fTimeGraphProvider.getStateTypeName(entry);
 168                     String entryName = entry.getName();
 169                     if (stateTypeName == null) {
 170                         stateTypeName = fTimeGraphProvider.getStateTypeName();
 171                     }
 172
 173                     if (!entryName.isEmpty()) {
 174                         addItem(stateTypeName, entry.getName());
 175                     }
 176
 177                     if (currEvent == null || currEvent instanceof NullTimeEvent) {
 178                         return;
 179                     }
 180
 181                     // state
 182                     String state = fTimeGraphProvider.getEventName(currEvent);
 183                     if (state != null) {
 184                         addItem(Messages.TmfTimeTipHandler_TRACE_STATE, state);
 185                     }
 186
 187                     // This block receives a list of <String, String> values to be added to the tip table
 188                     Map<String, String> eventAddOns = fTimeGraphProvider.getEventHoverToolTipInfo(currEvent, currPixelTime);
 189                     if (eventAddOns != null) {
 190                         for (Iterator<String> iter = eventAddOns.keySet().iterator(); iter.hasNext();) {
 191                             String message = iter.next();
 192                             addItem(message, eventAddOns.get(message));
 193                         }
 194                     }
 195
 196                     long eventStartTime = -1;
 197                     long eventDuration = -1;
 198                     long eventEndTime = -1;
 199
 200                     eventStartTime = currEvent.getTime();
 201                     eventDuration = currEvent.getDuration();
 202                     if (eventDuration < 0 && nextEvent != null) {
 203                         eventEndTime = nextEvent.getTime();
 204                         eventDuration = eventEndTime - eventStartTime;
 205                     } else {
 206                         eventEndTime = eventStartTime + eventDuration;
 207                     }
 208
 209                     Resolution res = Resolution.NANOSEC;
 210                     TimeFormat tf = fTimeDataProvider.getTimeFormat();
 211                     if (tf == TimeFormat.CALENDAR) {
 212                         addItem(Messages.TmfTimeTipHandler_TRACE_DATE, eventStartTime > -1 ?
 213                                 Utils.formatDate(eventStartTime)
 214                                 : "?"); //$NON-NLS-1$
 215                     }
 216                     if (eventDuration > 0) {
 217                         addItem(Messages.TmfTimeTipHandler_TRACE_START_TIME, eventStartTime > -1 ?
 218                                 Utils.formatTime(eventStartTime, tf, res)
 219                                 : "?"); //$NON-NLS-1$
 220
 221                         addItem(Messages.TmfTimeTipHandler_TRACE_STOP_TIME, eventEndTime > -1 ?
 222                                 Utils.formatTime(eventEndTime, tf, res)
 223                                 : "?"); //$NON-NLS-1$
 224                     } else {
 225                         addItem(Messages.TmfTimeTipHandler_TRACE_EVENT_TIME, eventStartTime > -1 ?
 226                                 Utils.formatTime(eventStartTime, tf, res)
 227                                 : "?"); //$NON-NLS-1$
 228                     }
 229
 230                     if (eventDuration > 0) {
 231                         // Duration in relative format in any case
 232                         if (tf == TimeFormat.CALENDAR) {
 233                             tf = TimeFormat.RELATIVE;
 234                         }
 235                         addItem(Messages.TmfTimeTipHandler_DURATION, eventDuration > -1 ?
 236                                 Utils.formatTime(eventDuration, tf, res)
 237                                 : "?"); //$NON-NLS-1$
 238                     }
 239                 }
 240             }
 241
 242             @Override
 243             public void mouseHover(MouseEvent event) {
 244                 if ((event.stateMask & SWT.BUTTON_MASK) != 0) {
 245                     return;
 246                 }
 247                 Point pt = new Point(event.x, event.y);
 248                 TimeGraphControl timeGraphControl = (TimeGraphControl) event.widget;
 249                 createTooltipShell(timeGraphControl.getShell());
 250                 ITimeGraphEntry entry = timeGraphControl.getEntry(pt);
 251                 for (Control child : fTipComposite.getChildren()) {
 252                     child.dispose();
 253                 }
 254                 fillValues(pt, timeGraphControl, entry);
 255                 if (fTipComposite.getChildren().length == 0) {
 256                     return;
 257                 }
 258                 fTipShell.pack();
 259                 Point tipPosition = control.toDisplay(pt);
 260                 fTipShell.pack();
 261                 setHoverLocation(fTipShell, tipPosition);
 262                 fTipShell.setVisible(true);
 263             }
 264         });
 265     }
 266
 267     private static void setHoverLocation(Shell shell, Point position) {
 268         Rectangle displayBounds = shell.getDisplay().getBounds();
 269         Rectangle shellBounds = shell.getBounds();
 270         if (position.x + shellBounds.width + OFFSET > displayBounds.width && position.x - shellBounds.width - OFFSET >= 0) {
 271             shellBounds.x = position.x - shellBounds.width - OFFSET;
 272         } else {
 273             shellBounds.x = Math.max(Math.min(position.x + OFFSET, displayBounds.width - shellBounds.width), 0);
 274         }
 275         if (position.y + shellBounds.height + OFFSET > displayBounds.height && position.y - shellBounds.height - OFFSET >= 0) {
 276             shellBounds.y = position.y - shellBounds.height - OFFSET;
 277         } else {
 278             shellBounds.y = Math.max(Math.min(position.y + OFFSET, displayBounds.height - shellBounds.height), 0);
 279         }
 280         shell.setBounds(shellBounds);
 281     }
 282
 283     private void setupControl(Control control) {
 284         control.setForeground(fTipShell.getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND));
 285         control.setBackground(fTipShell.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
 286
 287         control.addMouseListener(new MouseAdapter() {
 288             @Override
 289             public void mouseDown(MouseEvent e) {
 290                 fTipShell.dispose();
 291             }
 292         });
 293
 294         control.addMouseTrackListener(new MouseTrackAdapter() {
 295             @Override
 296             public void mouseExit(MouseEvent e) {
 297                 fTipShell.dispose();
 298             }
 299         });
 300
 301         control.addMouseMoveListener(new MouseMoveListener() {
 302             @Override
 303             public void mouseMove(MouseEvent e) {
 304                 fTipShell.dispose();
 305             }
 306         });
 307     }
 308 }