org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/histogram/IHistogramDataModel.java

   1 /*******************************************************************************
   2  * Copyright (c) 2011 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.lttng.ui.views.histogram;
  13
  14 /**
  15  * <b><u>IHistogramDataModel</u></b>
  16  * <p>
  17  */
  18 import org.eclipse.linuxtools.lttng.ui.views.distribution.model.IBaseDistributionModel;
  19
  20 public interface IHistogramDataModel extends IBaseDistributionModel {
  21     /**
  22      * Add event to the correct bucket, compacting the if needed.
  23      *
  24      * @param timestamp the timestamp of the event to count
  25      */
  26     public void countEvent(long eventCount, long timestamp);
  27
  28     /**
  29      * Scale the model data to the width, height and bar width requested.
  30      *
  31      * @param width
  32      * @param height
  33      * @param bar width
  34      * @return the result array of size [width] and where the highest value
  35      *         doesn't exceed [height] considering the bar width [barWidth]
  36      */
  37     public HistogramScaledData scaleTo(int width, int height, int barWidth);
  38 }