1 /*

     2  * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). 

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

     5  * under the terms of "Eclipse Public License v1.0"

     6  * which accompanies this distribution, and is available

     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8  *

     9  * Initial Contributors:

    10  * Nokia Corporation - initial contribution.

    11  *

    12  * Contributors:

    13  *

    14  * Description:

    15  *

    16  * SearchDialogProgressBar updater class

    17  *

    18  */

    19 package com.nokia.traceviewer.dialog;

    20 

    21 import org.eclipse.swt.widgets.Label;

    22 import org.eclipse.swt.widgets.ProgressBar;

    23 

    24 import com.nokia.traceviewer.engine.TraceViewerGlobals;

    25 

    26 /**

    27  * Updates search dialogs progressBar

    28  * 

    29  */

    30 final class SearchDialogProgressBarUpdater implements Runnable {

    31 

    32 	/**

    33 	 * Value of the progressbar

    34 	 */

    35 	private int value;

    36 

    37 	/**

    38 	 * Line count label to update

    39 	 */

    40 	private final Label lineCountLabel;

    41 

    42 	/**

    43 	 * Constructor

    44 	 * 

    45 	 * @param value

    46 	 *            value of the selection

    47 	 * @param lineCountLabel

    48 	 *            line count label to update

    49 	 */

    50 	SearchDialogProgressBarUpdater(int value, Label lineCountLabel) {

    51 		this.value = value;

    52 		this.lineCountLabel = lineCountLabel;

    53 	}

    54 

    55 	/*

    56 	 * (non-Javadoc)

    57 	 * 

    58 	 * @see java.lang.Runnable#run()

    59 	 */

    60 	public void run() {

    61 		ProgressBar bar = TraceViewerGlobals.getTraceViewer()

    62 				.getDataProcessorAccess().getSearchProcessor()

    63 				.getSearchDialog().getProgressBar();

    64 

    65 		if (bar != null && !bar.isDisposed()) {

    66 			int max = 0;

    67 

    68 			// Get max value from data reader

    69 			if (TraceViewerGlobals.getTraceViewer().getDataReaderAccess()

    70 					.getCurrentDataReader() != null) {

    71 				max = TraceViewerGlobals.getTraceViewer().getDataReaderAccess()

    72 						.getCurrentDataReader().getTraceCount();

    73 			}

    74 			// Set maximum value to bar

    75 			bar.setMaximum(max);

    76 

    77 			// Set selection value

    78 			StringBuffer text = new StringBuffer();

    79 			text.append(Messages

    80 					.getString("SearchDialogProgressBarUpdater.LineText")); //$NON-NLS-1$

    81 			text.append(':');

    82 			text.append(' ');

    83 

    84 			if (value <= 0 && max > 0) {

    85 				value = 1;

    86 				text.append(value);

    87 			} else if (value >= max) {

    88 				value = max;

    89 				text.append(value);

    90 			} else if (max == 0) {

    91 				text.append(0);

    92 			} else {

    93 				text.append(value + 1);

    94 			}

    95 			bar.setSelection(value);

    96 

    97 			text.append(" / "); //$NON-NLS-1$

    98 			text.append(max);

    99 

   100 			// Change line text

   101 			if (!lineCountLabel.isDisposed()) {

   102 				lineCountLabel.setText(text.toString());

   103 			}

   104 		}

   105 	}

   106 }