tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/provisional/tmf/core/views/timegraph2/ColorDefinition.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 EfficiOS Inc., Alexandre Montplaisir
   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.tmf.core.views.timegraph2;
  11
  12 import java.util.Objects;
  13
  14 import org.eclipse.jdt.annotation.Nullable;
  15
  16 public class ColorDefinition {
  17
  18     public static final int MIN = 0;
  19     public static final int MAX = 255;
  20
  21     public final int fRed;
  22     public final int fGreen;
  23     public final int fBlue;
  24     public final int fAlpha;
  25
  26     public ColorDefinition(int red, int green, int blue) {
  27         this(red, green, blue, MAX);
  28     }
  29
  30     public ColorDefinition(int red, int green, int blue, int alpha) {
  31         checkValue(red);
  32         checkValue(green);
  33         checkValue(blue);
  34         checkValue(alpha);
  35
  36         fRed = red;
  37         fGreen = green;
  38         fBlue = blue;
  39         fAlpha = alpha;
  40     }
  41
  42     private static void checkValue(int value) throws IllegalArgumentException {
  43         if (value < MIN || value > MAX) {
  44             throw new IllegalArgumentException();
  45         }
  46     }
  47
  48     @Override
  49     public int hashCode() {
  50         return Objects.hash(fRed, fGreen, fBlue, fAlpha);
  51     }
  52
  53     @Override
  54     public boolean equals(@Nullable Object obj) {
  55         if (this == obj) {
  56             return true;
  57         }
  58         if (obj == null) {
  59             return false;
  60         }
  61         if (getClass() != obj.getClass()) {
  62             return false;
  63         }
  64         ColorDefinition other = (ColorDefinition) obj;
  65         if (fAlpha != other.fAlpha ||
  66                 fBlue != other.fBlue ||
  67                 fGreen != other.fGreen ||
  68                 fRed != other.fRed) {
  69             return false;
  70         }
  71         return true;
  72     }
  73
  74
  75 }