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.charts.model; 17 18 import java.util.HashMap; 19 import java.util.Map; 20 21 import static ohos.devtools.views.charts.utils.ChartConstants.DEFAULT_MAX_MILLIS; 22 import static ohos.devtools.views.charts.utils.ChartConstants.DEFAULT_TIME_UNIT; 23 24 /** 25 * Chart绘制标准，用于统一Timeline和Chart 26 * 27 * @since 2021/1/26 15:10 28 */ 29 public class ChartStandard { 30 /** 31 * sessionId 32 */ 33 private final long sessionId; 34 35 /** 36 * 用户框选时间范围的集合 37 * 38 * @see "Key: 区别各个Chart的key, value: 框选的时间范围" 39 */ 40 private final Map<String, ChartDataRange> selectedRangeMap = new HashMap<>(); 41 42 /** 43 * 窗体上可以展示的最大毫秒数，单位为毫秒 44 */ 45 private int maxDisplayMillis; 46 47 /** 48 * Timeline和Chart刻度线上的最小刻度间隔，单位为毫秒 49 */ 50 private int minMarkInterval; 51 52 /** 53 * 本次Chart首次创建并启动刷新时的时间戳 54 */ 55 private long firstTimestamp; 56 57 /** 58 * 本次Chart最后一个数据的时间戳 59 */ 60 private long lastTimestamp; 61 62 /** 63 * Chart展示的时间范围 64 */ 65 private ChartDataRange displayRange; 66 67 /** 68 * 构造函数 69 * 70 * @param sessionId sessionId 71 */ ChartStandard(long sessionId)72 public ChartStandard(long sessionId) { 73 this.sessionId = sessionId; 74 maxDisplayMillis = DEFAULT_MAX_MILLIS; 75 minMarkInterval = DEFAULT_TIME_UNIT; 76 } 77 78 /** 79 * 修改Chart展示的时间范围 80 * 81 * @param start 开始时间 82 * @param end 结束时间 83 */ updateDisplayTimeRange(int start, int end)84 public void updateDisplayTimeRange(int start, int end) { 85 if (displayRange == null) { 86 displayRange = new ChartDataRange(); 87 } 88 displayRange.setStartTime(start); 89 displayRange.setEndTime(end); 90 } 91 92 /** 93 * 根据Key获取对应的框选时间范围 94 * 95 * @param key 区别各个Chart的key 96 * @return ChartDataRange 97 */ getSelectedRange(String key)98 public ChartDataRange getSelectedRange(String key) { 99 return selectedRangeMap.get(key); 100 } 101 102 /** 103 * 更新用户框选的起始时间和坐标点 104 * 105 * @param key 区别各个Chart的key 106 * @param startTime 用户新框选的时间范围 107 */ updateSelectedStart(String key, int startTime)108 public void updateSelectedStart(String key, int startTime) { 109 ChartDataRange range = selectedRangeMap.get(key); 110 if (range == null) { 111 range = new ChartDataRange(); 112 selectedRangeMap.put(key, range); 113 } 114 range.setStartTime(startTime); 115 } 116 117 /** 118 * 更新用户框选的起始时间和坐标点 119 * 120 * @param key 区别各个Chart的key 121 * @param endTime 用户新框选的时间范围 122 */ updateSelectedEnd(String key, int endTime)123 public void updateSelectedEnd(String key, int endTime) { 124 ChartDataRange range = selectedRangeMap.get(key); 125 if (range == null) { 126 range = new ChartDataRange(); 127 selectedRangeMap.put(key, range); 128 } 129 range.setEndTime(endTime); 130 } 131 132 /** 133 * 清空所有Chart的框选时间范围 134 */ clearAllSelectedRanges()135 public void clearAllSelectedRanges() { 136 selectedRangeMap.clear(); 137 } 138 139 /** 140 * 清空指定Chart的框选时间范围 141 * 142 * @param key 区别各个Chart的key 143 */ clearSelectedRange(String key)144 public void clearSelectedRange(String key) { 145 selectedRangeMap.remove(key); 146 } 147 getSessionId()148 public long getSessionId() { 149 return sessionId; 150 } 151 getMaxDisplayMillis()152 public int getMaxDisplayMillis() { 153 return maxDisplayMillis; 154 } 155 setMaxDisplayMillis(int maxDisplayMillis)156 public void setMaxDisplayMillis(int maxDisplayMillis) { 157 this.maxDisplayMillis = maxDisplayMillis; 158 } 159 getMinMarkInterval()160 public int getMinMarkInterval() { 161 return minMarkInterval; 162 } 163 setMinMarkInterval(int minMarkInterval)164 public void setMinMarkInterval(int minMarkInterval) { 165 this.minMarkInterval = minMarkInterval; 166 } 167 getFirstTimestamp()168 public long getFirstTimestamp() { 169 return firstTimestamp; 170 } 171 setFirstTimestamp(long firstTimestamp)172 public void setFirstTimestamp(long firstTimestamp) { 173 this.firstTimestamp = firstTimestamp; 174 } 175 getLastTimestamp()176 public long getLastTimestamp() { 177 return lastTimestamp; 178 } 179 setLastTimestamp(long lastTimestamp)180 public void setLastTimestamp(long lastTimestamp) { 181 this.lastTimestamp = lastTimestamp; 182 } 183 getDisplayRange()184 public ChartDataRange getDisplayRange() { 185 return displayRange; 186 } 187 } 188