tweaks (#1816)

* opt: getFileName

* opt: audio-pitch-correction

* opt: spring dialog

* opt: account dialog

* update [skip ci]

---------

Co-authored-by: dom <githubaccount56556@proton.me>

lib/pages/login/controller.dart

@@ -740,116 +740,114 @@ class LoginPageController extends GetxController
     bool quickSelect = selectAccount.every((e) => e == selectAccount.first);
     return showDialog(
       context: context,
-      builder: (context) => Builder(
-        builder: (context) => AlertDialog(
-          title: Row(
-            crossAxisAlignment: .start,
-            mainAxisAlignment: .spaceBetween,
-            children: [
-              Text.rich(
-                style: const TextStyle(height: 1.5),
-                TextSpan(
-                  children: [
-                    const TextSpan(text: '账号切换'),
-                    TextSpan(
-                      text: '\nmid 为0时使用匿名',
-                      style: TextStyle(
-                        fontSize: 14,
-                        color: ColorScheme.of(context).outline,
-                      ),
+      builder: (context) => AlertDialog(
+        title: Row(
+          crossAxisAlignment: .start,
+          mainAxisAlignment: .spaceBetween,
+          children: [
+            Text.rich(
+              style: const TextStyle(height: 1.5),
+              TextSpan(
+                children: [
+                  const TextSpan(text: '账号切换'),
+                  TextSpan(
+                    text: '\nmid 为0时使用匿名',
+                    style: TextStyle(
+                      fontSize: 14,
+                      color: ColorScheme.of(context).outline,
                     ),
-                  ],
-                ),
-              ),
-              TextButton(
-                onPressed: () {
-                  quickSelect = !quickSelect;
-                  (context as Element).markNeedsBuild();
-                },
-                child: const Text('切换'),
-              ),
-            ],
-          ),
-          titlePadding: const .only(left: 22, top: 16, right: 22, bottom: 3),
-          contentPadding: const .symmetric(vertical: 5),
-          actionsPadding: const .only(left: 16, right: 16, bottom: 10),
-          content: SingleChildScrollView(
-            child: AnimatedSize(
-              curve: Curves.easeIn,
-              alignment: .topCenter,
-              duration: const Duration(milliseconds: 200),
-              child: quickSelect
-                  ? Builder(
-                      builder: (context) => RadioGroup<Account>(
-                        groupValue: selectAccount[0],
-                        onChanged: (v) {
-                          for (int i = 0; i < selectAccount.length; i++) {
-                            selectAccount[i] = v!;
-                          }
-                          (context as Element).markNeedsBuild();
-                        },
-                        child: Column(
-                          crossAxisAlignment: .start,
-                          children: options.entries
-                              .map(
-                                (entry) => RadioWidget<Account>(
-                                  value: entry.key,
-                                  title: entry.value,
-                                  mainAxisSize: .max,
-                                  padding: const .only(left: 12),
-                                ),
-                              )
-                              .toList(),
-                        ),
-                      ),
-                    )
-                  : Column(
-                      crossAxisAlignment: .start,
-                      children: AccountType.values
-                          .map(
-                            (e) => Builder(
-                              builder: (context) => RadioGroup<Account>(
-                                groupValue: selectAccount[e.index],
-                                onChanged: (v) {
-                                  selectAccount[e.index] = v!;
-                                  (context as Element).markNeedsBuild();
-                                },
-                                child: WrapRadioOptionsGroup<Account>(
-                                  groupTitle: e.title,
-                                  options: options,
-                                ),
-                              ),
-                            ),
-                          )
-                          .toList(),
-                    ),
-            ),
-          ),
-          actions: [
-            TextButton(
-              onPressed: Get.back,
-              child: Text(
-                '取消',
-                style: TextStyle(color: ColorScheme.of(context).outline),
+                  ),
+                ],
               ),
             ),
             TextButton(
               onPressed: () {
-                Get.back();
-                for (final type in AccountType.values) {
-                  final index = type.index;
-                  final account = quickSelect
-                      ? selectAccount.first
-                      : selectAccount[index];
-                  if (account != Accounts.accountMode[index]) {
-                    Accounts.set(type, account);
-                  }
-                }
+                quickSelect = !quickSelect;
+                (context as Element).markNeedsBuild();
               },
-              child: const Text('确定'),
+              child: const Text('切换'),
             ),
           ],
         ),
+        titlePadding: const .only(left: 22, top: 16, right: 22, bottom: 3),
+        contentPadding: const .symmetric(vertical: 5),
+        actionsPadding: const .only(left: 16, right: 16, bottom: 10),
+        content: SingleChildScrollView(
+          child: AnimatedSize(
+            curve: Curves.easeIn,
+            alignment: .topCenter,
+            duration: const Duration(milliseconds: 200),
+            child: quickSelect
+                ? Builder(
+                    builder: (context) => RadioGroup<Account>(
+                      groupValue: selectAccount[0],
+                      onChanged: (v) {
+                        selectAccount.fillRange(0, selectAccount.length, v);
+                        (context as Element).markNeedsBuild();
+                      },
+                      child: Column(
+                        crossAxisAlignment: .start,
+                        children: options.entries
+                            .map(
+                              (entry) => RadioWidget<Account>(
+                                value: entry.key,
+                                title: entry.value,
+                                mainAxisSize: .max,
+                                padding: PlatformUtils.isDesktop
+                                    ? const .only(left: 12)
+                                    : const .only(left: 12, top: 2, bottom: 2),
+                              ),
+                            )
+                            .toList(),
+                      ),
+                    ),
+                  )
+                : Column(
+                    crossAxisAlignment: .start,
+                    children: AccountType.values
+                        .map(
+                          (e) => Builder(
+                            builder: (context) => RadioGroup<Account>(
+                              groupValue: selectAccount[e.index],
+                              onChanged: (v) {
+                                selectAccount[e.index] = v!;
+                                (context as Element).markNeedsBuild();
+                              },
+                              child: WrapRadioOptionsGroup<Account>(
+                                groupTitle: e.title,
+                                options: options,
+                              ),
+                            ),
+                          ),
+                        )
+                        .toList(),
+                  ),
+          ),
+        ),
+        actions: [
+          TextButton(
+            onPressed: Get.back,
+            child: Text(
+              '取消',
+              style: TextStyle(color: ColorScheme.of(context).outline),
+            ),
+          ),
+          TextButton(
+            onPressed: () {
+              Get.back();
+              for (final type in AccountType.values) {
+                final index = type.index;
+                final account = quickSelect
+                    ? selectAccount.first
+                    : selectAccount[index];
+                if (account != Accounts.accountMode[index]) {
+                  Accounts.set(type, account);
+                }
+              }
+            },
+            child: const Text('确定'),
+          ),
+        ],
       ),
     );
   }

lib/pages/setting/models/style_settings.dart

@@ -1,4 +1,5 @@
 import 'dart:io';
+import 'dart:math' as math;
 
 import 'package:PiliPlus/common/widgets/color_palette.dart';
 import 'package:PiliPlus/common/widgets/custom_toast.dart';
@@ -490,60 +491,41 @@ void _showUiScaleDialog(
   );
 }
 
-void _showSpringDurationDialog(BuildContext context) {
-  String initialValue = '500';
-  showDialog(
-    context: context,
-    builder: (context) => AlertDialog(
-      title: const Text('滑动时间'),
-      content: TextFormField(
-        autofocus: true,
-        keyboardType: .number,
-        initialValue: initialValue,
-        onChanged: (value) => initialValue = value,
-        inputFormatters: [FilteringTextInputFormatter.digitsOnly],
-        decoration: const InputDecoration(suffixText: 'ms'),
-      ),
-      actions: [
-        TextButton(
-          onPressed: Get.back,
-          child: Text(
-            '取消',
-            style: TextStyle(color: ColorScheme.of(context).outline),
-          ),
-        ),
-        TextButton(
-          onPressed: () {
-            try {
-              final milliseconds = int.parse(initialValue);
-              Get.back();
-              final springDescription = SpringDescription.withDurationAndBounce(
-                duration: Duration(milliseconds: milliseconds),
-              );
-              GStorage.setting.put(
-                SettingBoxKey.springDescription,
-                [
-                  springDescription.mass,
-                  springDescription.stiffness,
-                  springDescription.damping,
-                ],
-              );
-              SmartDialog.showToast('设置成功，重启生效');
-            } catch (e) {
-              SmartDialog.showToast(e.toString());
-            }
-          },
-          child: const Text('确定'),
-        ),
-      ],
-    ),
-  );
-}
-
 void _showSpringDialog(BuildContext context, _) {
   final List<String> springDescription = Pref.springDescription
       .map((i) => i.toString())
-      .toList();
+      .toList(growable: false);
+  bool physicalMode = true;
+
+  void physical2Duration() {
+    final mass = double.parse(springDescription[0]);
+    final stiffness = double.parse(springDescription[1]);
+    final damping = double.parse(springDescription[2]);
+
+    final duration = math.sqrt(4 * math.pi * math.pi * mass / stiffness);
+    final dampingRatio = damping / (2.0 * math.sqrt(mass * stiffness));
+    final bounce = dampingRatio < 1.0
+        ? 1.0 - dampingRatio
+        : 1.0 / dampingRatio - 1;
+
+    springDescription[0] = duration.toString();
+    springDescription[1] = bounce.toString();
+  }
+
+  /// from [SpringDescription.withDurationAndBounce] but with higher precision
+  void duration2Physical() {
+    final duration = double.parse(springDescription[0]);
+    final bounce = double.parse(springDescription[1]).clamp(-1.0, 1.0);
+
+    final stiffness = 4 * math.pi * math.pi / math.pow(duration, 2);
+    final dampingRatio = bounce > 0 ? 1.0 - bounce : 1.0 / (bounce + 1);
+    final damping = 2 * math.sqrt(stiffness) * dampingRatio;
+
+    springDescription[0] = '1';
+    springDescription[1] = stiffness.toString();
+    springDescription[2] = damping.toString();
+  }
+
   showDialog(
     context: context,
     builder: (context) => AlertDialog(
@@ -557,27 +539,45 @@ void _showSpringDialog(BuildContext context, _) {
               tapTargetSize: .shrinkWrap,
             ),
             onPressed: () {
-              Get.back();
-              _showSpringDurationDialog(context);
+              try {
+                if (physicalMode) {
+                  physical2Duration();
+                } else {
+                  duration2Physical();
+                }
+                physicalMode = !physicalMode;
+                (context as Element).markNeedsBuild();
+              } catch (e) {
+                SmartDialog.showToast(e.toString());
+              }
             },
-            child: const Text('滑动时间'),
+            child: Text(physicalMode ? '滑动时间' : '物理参数'),
           ),
         ],
       ),
       content: Column(
-        mainAxisSize: MainAxisSize.min,
+        key: ValueKey(physicalMode),
+        mainAxisSize: .min,
         children: List.generate(
-          3,
+          physicalMode ? 3 : 2,
           (index) => TextFormField(
             autofocus: index == 0,
             initialValue: springDescription[index],
-            keyboardType: const .numberWithOptions(decimal: true),
+            keyboardType: .numberWithOptions(
+              signed: !physicalMode && index == 1,
+              decimal: true,
+            ),
             onChanged: (value) => springDescription[index] = value,
             inputFormatters: [
-              FilteringTextInputFormatter.allow(RegExp(r'[\d\.]+')),
+              !physicalMode && index == 1
+                  ? FilteringTextInputFormatter.allow(RegExp(r'[-\d\.]+'))
+                  : FilteringTextInputFormatter.allow(RegExp(r'[\d\.]+')),
             ],
             decoration: InputDecoration(
-              labelText: const ['mass', 'stiffness', 'damping'][index],
+              labelText: (physicalMode
+                  ? const ['mass', 'stiffness', 'damping']
+                  : const ['duration', 'bounce'])[index],
+              suffixText: !physicalMode && index == 0 ? 's' : null,
             ),
           ),
         ),
@@ -601,6 +601,9 @@ void _showSpringDialog(BuildContext context, _) {
         TextButton(
           onPressed: () {
             try {
+              if (!physicalMode) {
+                duration2Physical();
+              }
               final res = springDescription.map(double.parse).toList();
               Get.back();
               GStorage.setting.put(SettingBoxKey.springDescription, res);

lib/plugin/pl_player/controller.dart

@@ -793,7 +793,7 @@ class PlPlayerController {
       if (isAnim) {
         setShader(superResolutionType.value, pp);
       }
-      await pp.setProperty("af", "scaletempo2=max-speed=8");
+      // await pp.setProperty('audio-pitch-correction', 'yes'); // default yes
       if (Platform.isAndroid) {
         await pp.setProperty("volume-max", "100");
         await pp.setProperty("ao", Pref.audioOutput);

lib/utils/utils.dart

@@ -162,15 +162,28 @@ abstract final class Utils {
     return randomBase64.substring(0, randomBase64.length - 2);
   }
 
-  static int _getExt(String uri) {
-    final i = uri.indexOf('?');
-    return i == -1 ? uri.length : i;
-  }
-
   static String getFileName(String uri, {bool fileExt = true}) {
-    final i0 = uri.lastIndexOf('/') + 1;
-    final i1 = fileExt ? _getExt(uri) : uri.lastIndexOf('.');
-    return uri.substring(i0, i1);
+    int slash = -1;
+    int dot = -1;
+    int qMark = uri.length;
+
+    loop:
+    for (int index = uri.length - 1; index >= 0; index--) {
+      switch (uri.codeUnitAt(index)) {
+        case 0x2F: // `/`
+          slash = index;
+          break loop;
+        case 0x2E: // `.`
+          if (dot == -1) dot = index;
+          break;
+        case 0x3F: // `?`
+          qMark = index;
+          if (dot > qMark) dot = -1;
+          break;
+      }
+    }
+    RangeError.checkNotNegative(slash, '/');
+    return uri.substring(slash + 1, (fileExt || dot == -1) ? qMark : dot);
   }
 
   /// When calling this from a `catch` block consider annotating the method