125 lines
3.0 KiB
TypeScript
125 lines
3.0 KiB
TypeScript
import {
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calculateTotalDistance,
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getMiddlePointOfPolyline,
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} from "@/utils/polyline";
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import React, { memo } from "react";
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import { StyleSheet, Text, View } from "react-native";
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import { Marker, Polyline } from "react-native-maps";
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export interface PolylineWithLabelProps {
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coordinates: {
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latitude: number;
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longitude: number;
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}[];
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label?: string;
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strokeColor?: string;
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strokeWidth?: number;
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showDistance?: boolean;
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zIndex?: number;
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}
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/**
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* Component render Polyline kèm Label/Text ở giữa
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*/
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const PolylineWithLabelComponent: React.FC<PolylineWithLabelProps> = ({
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coordinates,
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label,
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strokeColor = "#FF5733",
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strokeWidth = 4,
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showDistance = false,
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zIndex = 50,
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}) => {
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if (!coordinates || coordinates.length < 2) {
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return null;
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}
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const middlePoint = getMiddlePointOfPolyline(coordinates);
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const distance = calculateTotalDistance(coordinates);
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let displayText = label || "";
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if (showDistance) {
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displayText += displayText
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? ` (${distance.toFixed(2)}km)`
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: `${distance.toFixed(2)}km`;
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}
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return (
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<>
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<Polyline
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coordinates={coordinates}
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strokeColor={strokeColor}
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strokeWidth={strokeWidth}
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zIndex={zIndex}
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/>
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{displayText && (
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<Marker
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coordinate={middlePoint}
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zIndex={zIndex + 10}
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tracksViewChanges={false}
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anchor={{ x: 0.5, y: 0.5 }}
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>
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<View style={styles.markerContainer}>
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<View style={styles.labelContainer}>
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<Text
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style={styles.labelText}
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numberOfLines={2}
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adjustsFontSizeToFit
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>
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{displayText}
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</Text>
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</View>
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</View>
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</Marker>
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)}
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</>
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);
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};
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const styles = StyleSheet.create({
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markerContainer: {
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alignItems: "center",
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justifyContent: "center",
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},
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labelContainer: {
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backgroundColor: "rgba(255, 87, 51, 0.95)",
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paddingHorizontal: 5,
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paddingVertical: 5,
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borderRadius: 18,
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borderWidth: 1,
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borderColor: "#fff",
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shadowColor: "#000",
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shadowOffset: { width: 0, height: 2 },
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shadowOpacity: 0.4,
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shadowRadius: 5,
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elevation: 8,
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minWidth: 80,
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maxWidth: 180,
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},
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labelText: {
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color: "#fff",
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fontSize: 14,
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fontWeight: "bold",
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letterSpacing: 0.3,
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textAlign: "center",
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},
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});
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// Export memoized component để tránh re-render không cần thiết
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export const PolylineWithLabel = memo(
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PolylineWithLabelComponent,
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(prev, next) => {
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// Custom comparison: chỉ re-render khi coordinates, label hoặc showDistance thay đổi
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return (
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prev.coordinates.length === next.coordinates.length &&
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prev.coordinates.every(
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(coord, index) =>
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coord.latitude === next.coordinates[index]?.latitude &&
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coord.longitude === next.coordinates[index]?.longitude
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) &&
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prev.label === next.label &&
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prev.showDistance === next.showDistance &&
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prev.strokeColor === next.strokeColor
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);
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}
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);
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