1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 package ohos.devtools.views.layout.chartview.event; 17 18 import ohos.devtools.views.charts.model.ChartDataRange; 19 20 /** 21 * Observer of chart refreshes event 22 * 23 * @since 2021/1/26 19:28 24 */ 25 public interface IChartEventObserver { 26 /** 27 * Refresh chart drawing standard 28 * 29 * @param startTime Start time of chart 30 * @param endTime End time of chart 31 * @param maxDisplayMillis Maximum display time on view 32 * @param minMarkInterval The minimum scale interval 33 */ refreshStandard(int startTime, int endTime, int maxDisplayMillis, int minMarkInterval)34 void refreshStandard(int startTime, int endTime, int maxDisplayMillis, int minMarkInterval); 35 36 /** 37 * Refresh view 38 * 39 * @param range Chart display time range 40 * @param firstTimestamp The first time stamp of this chart's data 41 * @param useCache whether or not use cache 42 */ refreshView(ChartDataRange range, long firstTimestamp, boolean useCache)43 void refreshView(ChartDataRange range, long firstTimestamp, boolean useCache); 44 } 45