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Merge pull request #3 from pansong291/dev/sky_studio_convert_20241015
增加转换 sky studio 乐谱功能
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2 changes: 1 addition & 1 deletion
2
...in/pansong291/piano/wizard/MusicPlayer.kt → ...291/piano/wizard/coroutine/MusicPlayer.kt
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138 changes: 138 additions & 0 deletions
138
app/src/main/kotlin/pansong291/piano/wizard/coroutine/SkyStudioFileConvertor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package pansong291.piano.wizard.coroutine | ||
|
|
||
| import android.app.Application | ||
| import android.os.Environment | ||
| import android.os.Handler | ||
| import android.os.Looper | ||
| import com.google.gson.Gson | ||
| import com.google.gson.reflect.TypeToken | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.launch | ||
| import pansong291.piano.wizard.R | ||
| import pansong291.piano.wizard.consts.StringConst | ||
| import pansong291.piano.wizard.entity.SkyStudioSheet | ||
| import pansong291.piano.wizard.exceptions.ServiceException | ||
| import pansong291.piano.wizard.utils.FileUtil | ||
| import pansong291.piano.wizard.utils.LangUtil | ||
| import pansong291.piano.wizard.utils.MusicUtil | ||
| import java.io.File | ||
| import java.io.FileFilter | ||
| import java.nio.charset.Charset | ||
|
|
||
| object SkyStudioFileConvertor { | ||
| private val handler = Handler(Looper.getMainLooper()) | ||
| private lateinit var application: Application | ||
| var onResult: ((message: String) -> Unit)? = null | ||
| var onFinished: (() -> Unit)? = null | ||
|
|
||
| fun convert(application: Application, scope: CoroutineScope, file: File) { | ||
| this.application = application | ||
| scope.launch { | ||
| val result = tryResult { | ||
| val messages = mutableListOf<String>() | ||
| val gson = Gson() | ||
| if (file.isDirectory) { | ||
| file.listFiles(FileFilter { | ||
| it.isFile && it.name.endsWith(StringConst.SKY_STUDIO_SHEET_FILE_EXT) | ||
| })?.forEach { | ||
| messages.add(convert(it, gson)) | ||
| } | ||
| } else { | ||
| messages.add(convert(file, gson)) | ||
| } | ||
| messages.joinToString("\n\n") | ||
| } | ||
| onResult?.also { handler.post { it(result) } } | ||
| }.invokeOnCompletion { | ||
| onFinished?.also { handler.post(it) } | ||
| } | ||
| } | ||
|
|
||
| private fun convert(file: File, gson: Gson): String { | ||
| return file.name + " ->\n" + tryResult { | ||
| val text = file.readText(FileUtil.detectFileEncoding(file)?.let { | ||
| Charset.forName(it) | ||
| } ?: Charsets.UTF_8) | ||
| val sheets = gson.fromJson<List<SkyStudioSheet>>( | ||
| text, | ||
| object : TypeToken<List<SkyStudioSheet>>() {}.type | ||
| ) | ||
| sheets.joinToString("\n") { | ||
| " " + convert(it, file.parent ?: Environment.getExternalStorageDirectory().path) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun convert(sheet: SkyStudioSheet, path: String): String { | ||
| return tryResult { | ||
| val name = sheet.name ?: application.getString(R.string.unknow_music) | ||
| val bpm = sheet.bpm?.takeIf { it > 0 } | ||
| ?: throw ServiceException(R.string.target_must_gt_zero_message, "bpm") | ||
| val pitchLevel = (sheet.pitchLevel?.toInt() ?: 0).takeIf { it >= 0 } | ||
| ?: throw ServiceException(R.string.target_must_gte_zero_message, "pitchLevel") | ||
| val baseTime = 60_000.0 / bpm | ||
| val songNotes = sheet.songNotes | ||
| if (songNotes.isNullOrEmpty()) | ||
| throw ServiceException(R.string.target_cannot_empty_message, "songNotes") | ||
| val notesList = songNotes.groupByTo(LinkedHashMap()) { | ||
| // 按时间分组，相同时间的 key 构成和弦 | ||
| (it.time ?: .0).takeIf { it >= 0 } | ||
| ?: throw ServiceException(R.string.target_must_gte_zero_message, "time") | ||
| }.mapTo(mutableListOf()) { | ||
| it.key to it.value.map { | ||
| it.key?.split("Key")?.getOrNull(1)?.toIntOrNull() | ||
| ?: throw ServiceException(R.string.target_format_incorrect_message, "key") | ||
| } | ||
| } | ||
| // 排序 | ||
| LangUtil.insertionSort(notesList) { p1, p2 -> p1.first < p2.first } | ||
| val isSemi = MusicUtil.isSemitone(pitchLevel) | ||
| val basePitch = MusicUtil.naturals.indexOf(if (isSemi) pitchLevel - 1 else pitchLevel) | ||
| val baseNote = if (basePitch < 5) 'C' + basePitch else 'A' + basePitch - 5 | ||
| val strBuilder = StringBuilder("[1=").apply { | ||
| append(baseNote) | ||
| if (isSemi) append('#') | ||
| // FIXME 节拍待填入 | ||
| append(",4/4,") | ||
| append(bpm.toLong()) | ||
| append(']') | ||
| } | ||
| var last = .0 to "0" | ||
| for (i in 0..notesList.size) { | ||
| if (i == notesList.size) { | ||
| strBuilder.append(last.second).append(',') | ||
| break | ||
| } | ||
| val note = notesList[i] | ||
| var rateA = (note.first - last.first).toLong() | ||
| var rateB = baseTime.toLong() | ||
| val gcd = LangUtil.gcd(rateA, rateB) | ||
| rateA /= gcd | ||
| rateB /= gcd | ||
| if (rateA > 0) strBuilder.append(last.second).apply { | ||
| if (rateA != 1L) append('*').append(rateA) | ||
| if (rateB != 1L) append('/').append(rateB) | ||
| append(',') | ||
| } | ||
| last = note.first to note.second.joinToString("&") { | ||
| MusicUtil.compileNote(MusicUtil.basicNoteTo12TET(it)) | ||
| } | ||
| } | ||
| val filename = | ||
| FileUtil.findAvailableFileName(path, name, StringConst.MUSIC_NOTATION_FILE_EXT) | ||
| File(path, filename).writeText(strBuilder.toString()) | ||
| filename | ||
| } | ||
| } | ||
|
|
||
| private fun tryResult(block: () -> String): String { | ||
| return try { | ||
| block() | ||
| } catch (e: Throwable) { | ||
| val cause = e.cause ?: e | ||
| if (cause is ServiceException) | ||
| "${application.getString(R.string.error)}: ${cause.getI18NMessage(application)}" | ||
| else "${cause.javaClass.simpleName}: ${cause.message}" | ||
| } | ||
| } | ||
| } |
5 changes: 3 additions & 2 deletions
5
app/src/main/kotlin/pansong291/piano/wizard/dialog/ConfirmDialog.kt
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14 changes: 14 additions & 0 deletions
14
app/src/main/kotlin/pansong291/piano/wizard/dialog/LoadingDialog.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| package pansong291.piano.wizard.dialog | ||
|
|
||
| import android.content.Context | ||
| import pansong291.piano.wizard.R | ||
| import pansong291.piano.wizard.dialog.base.BaseDialog | ||
| import pansong291.piano.wizard.dialog.contents.DialogSpinnerContent | ||
|
|
||
| class LoadingDialog(context: Context) : BaseDialog(context) { | ||
| init { | ||
| DialogSpinnerContent.loadIn(this) | ||
| setTitle(R.string.processing) | ||
| setMaskCloseable(false) | ||
| } | ||
| } |
5 changes: 3 additions & 2 deletions
5
app/src/main/kotlin/pansong291/piano/wizard/dialog/MessageDialog.kt
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