| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.uima.caseditor.core.model; |
| |
| import java.awt.Color; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.uima.cas.CAS; |
| import org.apache.uima.cas.Type; |
| import org.apache.uima.cas.TypeSystem; |
| import org.apache.uima.caseditor.editor.AnnotationStyle; |
| |
| /** |
| * Utility to assign default colors to the annotation types in the |
| * TypeSystem. |
| */ |
| class DefaultColors { |
| |
| // colors to use for highlighting annotations |
| // (use high brightness for best contrast against black text) |
| private static final float BRIGHT = 0.95f; |
| |
| private static final Color[] COLORS = new Color[] { |
| // low saturation colors are best, so put them first |
| Color.getHSBColor(55f / 360, 0.25f, BRIGHT), // butter yellow? |
| Color.getHSBColor(0f / 360, 0.25f, BRIGHT), // pink? |
| Color.getHSBColor(210f / 360, 0.25f, BRIGHT), // baby blue? |
| Color.getHSBColor(120f / 360, 0.25f, BRIGHT), // mint green? |
| Color.getHSBColor(290f / 360, 0.25f, BRIGHT), // lavender? |
| Color.getHSBColor(30f / 360, 0.25f, BRIGHT), // tangerine? |
| Color.getHSBColor(80f / 360, 0.25f, BRIGHT), // celery green? |
| Color.getHSBColor(330f / 360, 0.25f, BRIGHT), // light coral? |
| Color.getHSBColor(160f / 360, 0.25f, BRIGHT), // aqua? |
| Color.getHSBColor(250f / 360, 0.25f, BRIGHT), // light violet? |
| |
| // higher saturation colors |
| Color.getHSBColor(55f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(0f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(210f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(120f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(290f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(30f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(80f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(330f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(160f / 360, 0.5f, BRIGHT), |
| Color.getHSBColor(250f / 360, 0.5f, BRIGHT), |
| |
| // even higher saturation colors |
| Color.getHSBColor(55f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(0f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(210f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(120f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(290f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(30f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(80f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(330f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(160f / 360, 0.75f, BRIGHT), |
| Color.getHSBColor(250f / 360, 0.75f, BRIGHT) }; |
| |
| /** |
| * Assigns color to the annotation types in the provided <code>TypeSystem</code>. |
| * If a user provides an already existing mapping these will not be changed |
| * and taken into account when mapping the not assigned types. |
| * |
| * @param ts the <code>TypeSystem</code> |
| * @param styles already existing styles which map an annotation to a color |
| * @return |
| */ |
| static Collection<AnnotationStyle> assignColors(TypeSystem ts, Collection<AnnotationStyle> styles) { |
| |
| Map<String, Color> typeNameToColorMap = new HashMap<String, Color>(); |
| |
| for (AnnotationStyle style : styles) { |
| typeNameToColorMap.put(style.getAnnotation(), style.getColor()); |
| } |
| |
| for (Type type : ts.getProperlySubsumedTypes(ts.getType(CAS.TYPE_NAME_ANNOTATION))) { |
| if (!typeNameToColorMap.containsKey(type.getName())) { |
| Color c = COLORS[typeNameToColorMap.size() % COLORS.length]; |
| typeNameToColorMap.put(type.getName(), c); |
| } |
| } |
| |
| Set<AnnotationStyle> newStyles = new HashSet<AnnotationStyle>(); |
| |
| for (AnnotationStyle style : styles) { |
| typeNameToColorMap.remove(style.getAnnotation()); |
| newStyles.add(style); |
| } |
| |
| for (Map.Entry<String, Color> entry : typeNameToColorMap.entrySet()) { |
| newStyles.add(new AnnotationStyle(entry.getKey(), AnnotationStyle.Style.BACKGROUND, |
| entry.getValue(), 0)); |
| } |
| |
| return Collections.unmodifiableSet(newStyles); |
| } |
| } |