projects/shelled/rustdesk-as-ref/flutter/lib/utils/scale.dart
2026-04-06 12:04:19 -07:00

35 lines
1.4 KiB
Dart

import 'package:flutter_hbb/consts.dart';
import 'package:flutter_hbb/models/platform_model.dart';
import 'package:uuid/uuid.dart';
/// Clamp custom scale percent to supported bounds.
/// Keep this in sync with the slider's minimum in the desktop toolbar UI.
///
/// This function exists to ensure consistent clamping behavior across the app
/// and to provide a single point of reference for the valid scale range.
int clampCustomScalePercent(int percent) {
return percent.clamp(kScaleCustomMinPercent, kScaleCustomMaxPercent);
}
/// Parse a string percent and clamp. Defaults to 100 when invalid.
int parseCustomScalePercent(String? s, {int defaultPercent = 100}) {
final parsed = int.tryParse(s ?? '') ?? defaultPercent;
return clampCustomScalePercent(parsed);
}
/// Convert a percent value to scale factor after clamping.
double percentToScale(int percent) => clampCustomScalePercent(percent) / 100.0;
/// Fetch, parse and clamp the custom scale percent for a session.
Future<int> getSessionCustomScalePercent(UuidValue sessionId) async {
final opt = await bind.sessionGetFlutterOption(
sessionId: sessionId, k: kCustomScalePercentKey);
return parseCustomScalePercent(opt);
}
/// Fetch and compute the custom scale factor for a session.
Future<double> getSessionCustomScale(UuidValue sessionId) async {
final p = await getSessionCustomScalePercent(sessionId);
return percentToScale(p);
}