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.systemui.classifier; 18 19 /** 20 * A classifier which looks at the general direction of a stroke and evaluates it depending on 21 * the type of action that takes place. 22 */ 23 public class DirectionClassifier extends StrokeClassifier { 24 public DirectionClassifier(ClassifierData classifierData) { 25 } 26 27 @Override 28 public String getTag() { 29 return "DIR"; 30 } 31 32 @Override 33 public float getFalseTouchEvaluation(int type, Stroke stroke) { 34 Point firstPoint = stroke.getPoints().get(0); 35 Point lastPoint = stroke.getPoints().get(stroke.getPoints().size() - 1); 36 return DirectionEvaluator.evaluate(lastPoint.x - firstPoint.x, lastPoint.y - firstPoint.y, 37 type); 38 } 39 }
