chen08209
81 lines
2.1 KiB
Dart
81 lines
2.1 KiB
Dart
import 'package:fl_clash/enum/enum.dart';
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import 'package:fl_clash/models/models.dart';
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import 'package:fl_clash/state.dart';
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import 'package:fl_clash/ui/typography.dart';
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import 'package:flutter/widgets.dart';
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const proxyGridSpacing = 8.0;
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double get listHeaderHeight {
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final measure = globalState.measure;
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return 20 +
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measure.textHeight(AppTextStyle.callout) +
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2 +
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measure.textHeight(AppTextStyle.caption1) +
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2;
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}
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double getItemHeight(ProxyCardType proxyCardType) {
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final measure = globalState.measure;
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final baseHeight =
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16 +
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measure.textHeight(AppTextStyle.subheadline) * 2 +
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measure.textHeight(AppTextStyle.footnote) +
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8 +
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4;
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return switch (proxyCardType) {
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ProxyCardType.loose =>
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baseHeight + measure.textHeight(AppTextStyle.caption2) + 6,
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ProxyCardType.standard => baseHeight,
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ProxyCardType.compact =>
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baseHeight - measure.textHeight(AppTextStyle.subheadline),
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};
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}
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double getRowExtent(ProxyCardType proxyCardType) =>
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getItemHeight(proxyCardType) + proxyGridSpacing;
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class GroupOffsets {
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const GroupOffsets(this.groups, this.offsets);
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static const empty = GroupOffsets(<Group>[], <double>[]);
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final List<Group> groups;
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final List<double> offsets;
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bool get isEmpty => offsets.isEmpty;
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double offsetOf(String groupName) {
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final index = groups.indexWhere((group) => group.name == groupName);
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if (index < 0 || index >= offsets.length) {
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return 0;
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}
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return offsets[index];
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}
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}
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double? selectedRowOffset({
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required List<Proxy> proxies,
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required String? selectedProxyName,
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required int columns,
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required double rowExtent,
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}) {
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final index = proxies.indexWhere((proxy) => proxy.name == selectedProxyName);
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if (index < 0) {
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return null;
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}
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return (index ~/ columns) * rowExtent;
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}
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void animateScrollTo(ScrollController controller, double offset) {
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if (!controller.hasClients) {
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return;
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}
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final position = controller.position;
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controller.animateTo(
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offset.clamp(position.minScrollExtent, position.maxScrollExtent),
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duration: const Duration(milliseconds: 300),
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curve: Curves.easeOutCubic,
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);
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}
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