From 2760a67d5f05d016bad579dc99436361b85e9ce4 Mon Sep 17 00:00:00 2001
From: hasina <hasinarak3@gmail.com>
Date: Mon, 19 Jan 2026 14:53:39 +0300
Subject: [PATCH] Remember voice states SATB

---
 .../kotlin/mg/dot/feufaro/midi/MidiPlayer.kt  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt b/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
index e3de7f2..2160bf9 100644
--- a/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
+++ b/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
@@ -6,6 +6,7 @@ import kotlinx.coroutines.launch
 import mg.dot.feufaro.FileRepository
 import java.io.ByteArrayInputStream
 import java.io.File
+import java.util.prefs.Preferences
 import javax.sound.midi.MidiSystem
 import javax.sound.midi.Sequencer
 import javax.sound.midi.Synthesizer //import javax.sound.midi.ShortMessage
@@ -27,6 +28,7 @@ actual class MediaPlayer actual constructor(
         null
     }
 
+    private val prefs = Preferences.userRoot().node("mg.dot.feufaro")
     private var synthetizer = MidiSystem.getSynthesizer() as Synthesizer?
 
     private var pointA: Long = -1L
@@ -53,6 +55,7 @@ actual class MediaPlayer actual constructor(
         val file = File(filename)
         if (file.exists()){
             sequencer?.sequence = MidiSystem.getSequence(file)
+            loadVoiceStates()
             applyVoiceStates()
             sequencer?.addMetaEventListener { meta ->
                 if(meta.type == 47){
@@ -170,6 +173,7 @@ actual class MediaPlayer actual constructor(
 
     actual fun toggleVoice(index: Int) {
         voiceStates[index] = !voiceStates[index]
+        saveVoiceStates()
         applyVoiceStates()
     }
 
@@ -231,4 +235,20 @@ actual class MediaPlayer actual constructor(
             e.printStackTrace()
         }
     }
+
+    private fun saveVoiceStates() {
+        val data = voiceStates.joinToString(",")
+        prefs.put("voice_states", data)
+    }
+
+    private fun loadVoiceStates() {
+        val defaultValue = "true,true,true,true"
+        val savedData = prefs.get("voice_states", defaultValue)
+
+        val states = savedData.split(",").map { it.toBoolean() }
+        for (i in 0 until 4) {
+            if (i < states.size) voiceStates[i] = states[i]
+        }
+    }
+
 }
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