26 lines
624 B
Dart
26 lines
624 B
Dart
import 'dart:ui';
|
|
|
|
import 'ring_number_provider.dart';
|
|
|
|
extension DashPath on Path {
|
|
// creates a new dashed path with the given intervals
|
|
Path dashPath(RingNumberProvider dashArray) {
|
|
final Path dest = Path();
|
|
for (final PathMetric metric in computeMetrics()) {
|
|
double distance = .0;
|
|
bool draw = true;
|
|
while (distance < metric.length) {
|
|
final double len = dashArray.next;
|
|
if (draw) {
|
|
dest.addPath(
|
|
metric.extractPath(distance, distance + len), Offset.zero);
|
|
}
|
|
distance += len;
|
|
draw = !draw;
|
|
}
|
|
}
|
|
|
|
return dest;
|
|
}
|
|
}
|