1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package com.android.incallui.answer.impl.classifier;
18 
19 /**
20  * A classifier which looks at the general direction of a stroke and evaluates it depending on the
21  * type of action that takes place.
22  */
23 public class DirectionClassifier extends StrokeClassifier {
DirectionClassifier(ClassifierData classifierData)24   public DirectionClassifier(ClassifierData classifierData) {}
25 
26   @Override
getTag()27   public String getTag() {
28     return "DIR";
29   }
30 
31   @Override
getFalseTouchEvaluation(Stroke stroke)32   public float getFalseTouchEvaluation(Stroke stroke) {
33     Point firstPoint = stroke.getPoints().get(0);
34     Point lastPoint = stroke.getPoints().get(stroke.getPoints().size() - 1);
35     return DirectionEvaluator.evaluate(lastPoint.x - firstPoint.x, lastPoint.y - firstPoint.y);
36   }
37 }
38