org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/ui/views/control/dialogs/GetEventInfoDialog.java

   1 /**********************************************************************
   2  * Copyright (c) 2012 Ericsson
   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.internal.lttng2.ui.views.control.dialogs;
  13
  14 import java.util.Arrays;
  15
  16 import org.eclipse.jface.dialogs.Dialog;
  17 import org.eclipse.jface.dialogs.IDialogConstants;
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.linuxtools.internal.lttng2.ui.Activator;
  20 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.Messages;
  21 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceChannelComponent;
  22 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent;
  23 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  24 import org.eclipse.swt.SWT;
  25 import org.eclipse.swt.custom.CCombo;
  26 import org.eclipse.swt.events.SelectionEvent;
  27 import org.eclipse.swt.events.SelectionListener;
  28 import org.eclipse.swt.graphics.Point;
  29 import org.eclipse.swt.layout.GridData;
  30 import org.eclipse.swt.layout.GridLayout;
  31 import org.eclipse.swt.widgets.Composite;
  32 import org.eclipse.swt.widgets.Control;
  33 import org.eclipse.swt.widgets.Group;
  34 import org.eclipse.swt.widgets.Shell;
  35
  36 /**
  37  * <b><u>EnableEventsDialog</u></b>
  38  * <p>
  39  * Dialog box for collecting information about the events to enable.
  40  * </p>
  41  */
  42 public class GetEventInfoDialog extends Dialog implements IGetEventInfoDialog {
  43
  44     // ------------------------------------------------------------------------
  45     // Constants
  46     // ------------------------------------------------------------------------
  47     /**
  48      * The icon file for this dialog box.
  49      */
  50     public static final String TARGET_NEW_CONNECTION_ICON_FILE = "icons/elcl16/enable_event.gif"; //$NON-NLS-1$
  51
  52     // ------------------------------------------------------------------------
  53     // Attributes
  54     // ------------------------------------------------------------------------
  55     /**
  56      * The dialog composite.
  57      */
  58     private Composite fDialogComposite = null;
  59     /**
  60      * The Group for the session combo box.
  61      */
  62     private Group fSessionsGroup = null;
  63     /**
  64      * The Group for the channel combo box.
  65      */
  66     private Group fChannelsGroup = null;
  67     /**
  68      * The session combo box.
  69      */
  70     private CCombo fSessionsCombo = null;
  71     /**
  72      * The channel combo box.
  73      */
  74     private CCombo fChannelsCombo = null;
  75     /**
  76      * The list of available sessions.
  77      */
  78     private TraceSessionComponent[] fSessions;
  79     /**
  80      * True for kernel, false for UST.
  81      */
  82     private boolean fIsKernel;
  83     /**
  84      * Index in session array (selected session).
  85      */
  86     private int fSessionIndex = 0;
  87     /**
  88      * The Channel where the events should be enabled.
  89      */
  90     private TraceChannelComponent fChannel;
  91     /**
  92      * List of available channels of the selected session.
  93      */
  94     private TraceChannelComponent[] fChannels;
  95
  96     // ------------------------------------------------------------------------
  97     // Constructors
  98     // ------------------------------------------------------------------------
  99     /**
 100      * Constructor of dialog box.
 101      * @param shell - the shell for the dialog box
 102      */
 103     public GetEventInfoDialog(Shell shell) {
 104         super(shell);
 105         setShellStyle(SWT.RESIZE);
 106     }
 107
 108     // ------------------------------------------------------------------------
 109     // Accessors
 110     // ------------------------------------------------------------------------
 111     /*
 112      * (non-Javadoc)
 113      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IEnableEventsDialog#getSession()
 114      */
 115     @Override
 116     public TraceSessionComponent getSession() {
 117         return fSessions[fSessionIndex];
 118     }
 119
 120     /*
 121      * (non-Javadoc)
 122      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IEnableEventsDialog#getChannel()
 123      */
 124     @Override
 125     public TraceChannelComponent getChannel() {
 126         return fChannel;
 127     }
 128
 129     /*
 130      * (non-Javadoc)
 131      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IGetEventInfoDialog#setIsKernel(boolean)
 132      */
 133     @Override
 134     public void setIsKernel(boolean isKernel) {
 135         fIsKernel = isKernel;
 136     }
 137
 138     /*
 139      * (non-Javadoc)
 140      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IGetEventInfoDialog#setSessions(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent[])
 141      */
 142     @Override
 143     public void setSessions(TraceSessionComponent[] sessions) {
 144         fSessions = Arrays.copyOf(sessions, sessions.length);
 145     }
 146
 147     // ------------------------------------------------------------------------
 148     // Operations
 149     // ------------------------------------------------------------------------
 150     /*
 151      * (non-Javadoc)
 152      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 153      */
 154     @Override
 155     protected void configureShell(Shell newShell) {
 156         super.configureShell(newShell);
 157         newShell.setText(Messages.TraceControl_EnableEventsDialogTitle);
 158         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 159     }
 160
 161     /*
 162      * (non-Javadoc)
 163      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 164      */
 165     @Override
 166     protected Control createDialogArea(Composite parent) {
 167
 168         // Main dialog panel
 169         fDialogComposite = new Composite(parent, SWT.NONE);
 170         GridLayout layout = new GridLayout(1, true);
 171         fDialogComposite.setLayout(layout);
 172         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 173
 174         fSessionsGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 175         fSessionsGroup.setText(Messages.TraceControl_EnableEventsSessionGroupName);
 176         layout = new GridLayout(1, true);
 177         fSessionsGroup.setLayout(layout);
 178         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 179         fSessionsGroup.setLayoutData(data);
 180
 181         fSessionsCombo = new CCombo(fSessionsGroup, SWT.READ_ONLY);
 182         fSessionsCombo.setToolTipText(Messages.TraceControl_EnableEventsSessionsTooltip);
 183         fSessionsCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 184
 185         String items[] = new String[fSessions.length];
 186         for (int i = 0; i < items.length; i++) {
 187             items[i] = String.valueOf(fSessions[i].getName());
 188         }
 189
 190         fSessionsCombo.setItems(items);
 191         fSessionsCombo.setEnabled(fSessions.length > 0);
 192
 193         fChannelsGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 194         fChannelsGroup.setText(Messages.TraceControl_EnableEventsChannelGroupName);
 195         layout = new GridLayout(1, true);
 196         fChannelsGroup.setLayout(layout);
 197         data = new GridData(GridData.FILL_HORIZONTAL);
 198         fChannelsGroup.setLayoutData(data);
 199
 200         fChannelsCombo = new CCombo(fChannelsGroup, SWT.READ_ONLY);
 201         fChannelsCombo.setToolTipText(Messages.TraceControl_EnableEventsChannelsTooltip);
 202         fChannelsCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 203         fChannelsCombo.setEnabled(false);
 204
 205         fSessionsCombo.addSelectionListener(new SelectionListener() {
 206             @Override
 207             public void widgetSelected(SelectionEvent e) {
 208                 fSessionIndex = fSessionsCombo.getSelectionIndex();
 209
 210                 if (fSessionIndex >= 0) {
 211                     TraceDomainComponent domain = null;
 212                     TraceDomainComponent[] domains = fSessions[fSessionIndex].getDomains();
 213                     for (int i = 0; i < domains.length; i++) {
 214
 215                         if (domains[i].isKernel() == fIsKernel) {
 216                             domain = domains[i];
 217                             break;
 218                         }
 219                     }
 220
 221                     if (domain != null) {
 222                         fChannels = domain.getChannels();
 223                         String items[] = new String[fChannels.length];
 224                         for (int i = 0; i < items.length; i++) {
 225                             items[i] = String.valueOf(fChannels[i].getName());
 226                         }
 227                         fChannelsCombo.setItems(items);
 228                         fChannelsCombo.setEnabled(fChannels.length > 0);
 229                     } else {
 230                         fChannelsCombo.setItems(new String[0]);
 231                         fChannelsCombo.setEnabled(false);
 232                         fChannels = null;
 233                    }
 234                    fChannelsCombo.getParent().getParent().layout();
 235                 }
 236             }
 237
 238             @Override
 239             public void widgetDefaultSelected(SelectionEvent e) {
 240             }
 241         });
 242
 243         getShell().setMinimumSize(new Point(300, 200));
 244
 245         return fDialogComposite;
 246     }
 247
 248     /*
 249      * (non-Javadoc)
 250      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 251      */
 252     @Override
 253     protected void createButtonsForButtonBar(Composite parent) {
 254         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 255         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 256     }
 257
 258     /*
 259      * (non-Javadoc)
 260      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 261      */
 262     @Override
 263     protected void okPressed() {
 264
 265         if (fSessionsCombo.getSelectionIndex() < 0) {
 266             MessageDialog.openError(getShell(),
 267                   Messages.TraceControl_EnableEventsDialogTitle,
 268                   Messages.TraceControl_EnableEventsNoSessionError);
 269             return;
 270         }
 271
 272         fSessionIndex = fSessionsCombo.getSelectionIndex();
 273
 274         if ((fChannels != null) && (fChannels.length > 0) && (fChannelsCombo.getSelectionIndex() < 0)) {
 275             MessageDialog.openError(getShell(),
 276                     Messages.TraceControl_EnableEventsDialogTitle,
 277                     Messages.TraceControl_EnableEventsNoChannelError);
 278               return;
 279         }
 280
 281         if ((fChannels != null) && (fChannels.length > 0)) {
 282             fChannel = fChannels[fChannelsCombo.getSelectionIndex()];
 283         }
 284
 285         super.okPressed();
 286     }
 287 }