analysis/org.eclipse.tracecompass.analysis.lami.ui/src/org/eclipse/tracecompass/internal/provisional/analysis/lami/ui/views/LamiAxisCheckBoxOption.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 EfficiOS Inc., Jonathan Rajotte-Julien
   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
  10 package org.eclipse.tracecompass.internal.provisional.analysis.lami.ui.views;
  11
  12 import java.util.function.Predicate;
  13
  14 import org.eclipse.jdt.annotation.Nullable;
  15 import org.eclipse.swt.widgets.Button;
  16 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.aspect.LamiTableEntryAspect;
  17
  18 /**
  19  * Basic representation of a check box option for dialog.
  20  *
  21  * @author Jonathan Rajotte-Julien
  22  */
  23 class LamiAxisCheckBoxOption {
  24
  25     private final String fName;
  26     private final boolean fDefaultValue;
  27     private @Nullable Button fButton;
  28     private boolean fValue;
  29     private final Predicate<LamiTableEntryAspect> fAppliesToAspect;
  30
  31     /**
  32      * Constructor
  33      *
  34      * @param name
  35      *          The name of the check box. The actual string shown to user.
  36      * @param defaultValue
  37      *          The default value of the check box.
  38      * @param validationPredicate
  39      *          The predicate to check if an option can be applied to an aspect
  40      */
  41     public LamiAxisCheckBoxOption(String name, boolean defaultValue, Predicate<LamiTableEntryAspect> validationPredicate) {
  42         fName = name;
  43         this.fDefaultValue = defaultValue;
  44         this.fValue = defaultValue;
  45         fButton = null;
  46         fAppliesToAspect = validationPredicate;
  47     }
  48
  49     public String getName() {
  50         return fName;
  51     }
  52
  53     public boolean getDefaultValue() {
  54         return fDefaultValue;
  55     }
  56
  57     public void setButton(Button button) {
  58         fButton = button;
  59     }
  60
  61     public boolean getValue() {
  62         return fValue;
  63     }
  64
  65     public void updateValue() {
  66         if (fButton != null) {
  67             fValue = fButton.getSelection();
  68         }
  69     }
  70
  71     public void setButtonEnabled(boolean enabled) {
  72         @Nullable Button button = fButton;
  73         if (button != null) {
  74             /* Only change state when necessary */
  75             if (button.getEnabled() != enabled) {
  76                 button.setEnabled(enabled);
  77                 button.setSelection(fDefaultValue);
  78             }
  79         }
  80     }
  81
  82     public boolean getButtonEnabled() {
  83         if (fButton != null) {
  84             return fButton.getEnabled();
  85         }
  86         return false;
  87     }
  88
  89     public Predicate<LamiTableEntryAspect> getPredicate() {
  90         return fAppliesToAspect;
  91     }
  92 }