tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/piecharts/IPieChartViewerState.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 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  *   Alexis Cabana-Loriaux - Initial API and implementation
  11  *
  12  *******************************************************************************/
  13
  14 package org.eclipse.tracecompass.tmf.ui.viewers.piecharts;
  15
  16 /**
  17  * Interface used to take control of a {@link TmfPieChartViewer} as part of the
  18  * State design pattern. Thus it is closely related with the TmfPieChartViewer
  19  *
  20  * @author Alexis Cabana-Loriaux
  21  * @since 2.0
  22  */
  23 interface IPieChartViewerState {
  24
  25     /**
  26      * To be called when the current selection has changed
  27      *
  28      * @param context
  29      *            The context in which to apply the changes
  30      */
  31     void newSelection(final TmfPieChartViewer context);
  32
  33     /**
  34      * To be called when the current selection changes to "empty"
  35      *
  36      * @param context
  37      *            The context in which to apply the changes
  38      */
  39     void newEmptySelection(final TmfPieChartViewer context);
  40
  41     /**
  42      * To be called when there are new global entries to show
  43      *
  44      * @param context
  45      *            The context in which to apply the changes
  46      */
  47     void newGlobalEntries(final TmfPieChartViewer context);
  48 }