From bd7d5d67b845175623313db907f7c08a6587d37c Mon Sep 17 00:00:00 2001
From: Neko Ayaka <neko@ayaka.moe>
Date: Sat, 20 Dec 2025 21:07:19 +0800
Subject: [PATCH] chore(ui,stage-ui,stage-pages): now support to display
 visualizer in both linear and log

---
 .../src/pages/settings/modules/beat-sync.vue  | 28 ++++++++++++++-----
 .../gadgets/AudioSpectrumVisualizer.vue       | 12 ++++++--
 .../components/Form/SelectTab/SelectTab.vue   |  3 +-
 3 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/packages/stage-pages/src/pages/settings/modules/beat-sync.vue b/packages/stage-pages/src/pages/settings/modules/beat-sync.vue
index 27ca4b17f..72fcea5ea 100644
--- a/packages/stage-pages/src/pages/settings/modules/beat-sync.vue
+++ b/packages/stage-pages/src/pages/settings/modules/beat-sync.vue
@@ -12,7 +12,7 @@ import {
   updateBeatSyncParameters,
 } from '@proj-airi/stage-shared/beat-sync'
 import { Alert, AudioSpectrumVisualizer } from '@proj-airi/stage-ui/components'
-import { Button, FieldCheckbox, FieldRange } from '@proj-airi/ui'
+import { Button, FieldCheckbox, FieldRange, SelectTab } from '@proj-airi/ui'
 import { createTimeline } from 'animejs'
 import { nanoid } from 'nanoid'
 import { computed, onMounted, onUnmounted, ref, toRaw, watch } from 'vue'
@@ -22,6 +22,11 @@ const state = ref<BeatSyncDetectorState>()
 const frequencies = ref<number[]>([])
 const totalFreqHistory = ref<number[]>([])
 const isUpdatingFrequencies = ref(false)
+const spectrumScale = ref<'linear' | 'logarithm'>('logarithm')
+const spectrumScaleOptions = [
+  { label: 'Linear', value: 'linear' as const, icon: 'i-solar:chart-2-bold-duotone' },
+  { label: 'Logarithm', value: 'logarithm' as const, icon: 'i-solar:chart-bold-duotone' },
+]
 
 const { t } = useI18n()
 
@@ -304,12 +309,21 @@ onUnmounted(() => {
         </div>
       </h2>
 
-      <div bg="neutral/10" h-64px max-w-400px w-full overflow-hidden rounded-2xl>
-        <AudioSpectrumVisualizer
-          v-if="isUpdatingFrequencies"
-          :frequencies="frequencies"
-          h-full w-full gap-0
-          bars-class="bg-primary-400/50 dark:bg-primary-500/50 rounded-none"
+      <div class="max-w-400px w-full flex flex-col gap-3">
+        <div bg="neutral/10" h-64px w-full overflow-hidden rounded-2xl>
+          <AudioSpectrumVisualizer
+            v-if="isUpdatingFrequencies"
+            :frequencies="frequencies"
+            :scale="spectrumScale"
+            h-full w-full gap-0
+            bars-class="bg-primary-400/50 dark:bg-primary-500/50 rounded-none"
+          />
+        </div>
+
+        <SelectTab
+          v-model="spectrumScale"
+          size="sm"
+          :options="spectrumScaleOptions"
         />
       </div>
 
diff --git a/packages/stage-ui/src/components/gadgets/AudioSpectrumVisualizer.vue b/packages/stage-ui/src/components/gadgets/AudioSpectrumVisualizer.vue
index b5c7551c5..de0bb5ed8 100644
--- a/packages/stage-ui/src/components/gadgets/AudioSpectrumVisualizer.vue
+++ b/packages/stage-ui/src/components/gadgets/AudioSpectrumVisualizer.vue
@@ -1,8 +1,11 @@
 <script setup lang="ts">
-const props = defineProps<{
+const props = withDefaults(defineProps<{
   frequencies: number[]
   barsClass?: string
-}>()
+  scale?: 'linear' | 'logarithm'
+}>(), {
+  scale: 'logarithm',
+})
 
 const AMPLIFICATION = 5
 
@@ -31,7 +34,10 @@ function toLogScale(value: number) {
 function getBarHeight(frequency: number, index: number) {
   const reductionFactor = getReductionFactor(index, props.frequencies.length)
   const { minHeight, maxHeight } = getHeightBounds(props.frequencies.length)
-  const scaled = toLogScale(frequency * reductionFactor) * 100
+  const normalized = props.scale === 'linear'
+    ? Math.min(1, Math.max(0, frequency * AMPLIFICATION * reductionFactor))
+    : toLogScale(frequency * reductionFactor)
+  const scaled = normalized * 100
   return Math.min(maxHeight, Math.max(minHeight, scaled))
 }
 </script>
diff --git a/packages/ui/src/components/Form/SelectTab/SelectTab.vue b/packages/ui/src/components/Form/SelectTab/SelectTab.vue
index 29069bd30..3977a683d 100644
--- a/packages/ui/src/components/Form/SelectTab/SelectTab.vue
+++ b/packages/ui/src/components/Form/SelectTab/SelectTab.vue
@@ -36,7 +36,7 @@ const rootStyle = computed(() => ({
   '--select-tab-count': String(itemCount.value),
   '--select-tab-active-index': String(Math.max(activeIndex.value, 0)),
   '--select-tab-padding': props.size === 'sm' ? '0px' : '0px',
-  '--select-tab-gap': '0.5rem',
+  '--select-tab-gap': '0.25rem',
   '--select-tab-indicator-opacity': activeIndex.value === -1 ? '0' : '1',
 }))
 </script>
@@ -49,6 +49,7 @@ const rootStyle = computed(() => ({
     :class="[
       'select-tab',
       'relative', 'flex', 'w-full', 'items-stretch', 'rounded-xl',
+      'overflow-hidden',
       'bg-white-400/6', 'dark:bg-neutral-900/70',
       'transition-[border-color,box-shadow,opacity]', 'duration-200', 'ease-out', 'border-2',
       'border-neutral-100', 'dark:border-neutral-800',