7 changed files with 9 additions and 242 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -3,8 +3,7 @@ cmake_minimum_required(VERSION 3.12)
 project(pineapple-music LANGUAGES CXX)

 include (GNUInstallDirs)
-include (FeatureSummary)
-include (FetchContent)
+include (FeatureSummary)

 set(CMAKE_INCLUDE_CURRENT_DIR ON)

@ -19,18 +18,7 @@ option(USE_QTEXTCODEC "Use QTextCodec instead of QStringConverter, in case Qt is

 find_package(Qt6 6.6 COMPONENTS Widgets Multimedia Network LinguistTools REQUIRED)
 find_package(TagLib 2.0.0)
-find_package(KF6Codecs 6.1.0)
-
-FetchContent_Declare(
-    kissfft
-    GIT_REPOSITORY https://github.com/mborgerding/kissfft.git
-    GIT_TAG f5f2a3b2f2cd02bf80639adb12cbeed125bdf420
-)
-set(KISSFFT_PKGCONFIG OFF CACHE BOOL "dep(kissfft): pkgconfig support")
-set(KISSFFT_STATIC ON CACHE BOOL "dep(kissfft): static linking")
-set(KISSFFT_TEST OFF CACHE BOOL "dep(kissfft): enable testing")
-set(KISSFFT_TOOLS OFF CACHE BOOL "dep(kissfft): build tools")
-FetchContent_MakeAvailable(kissfft)
+find_package(KF6Codecs 6.1.0)

 if (USE_QTEXTCODEC)
    find_package(Qt6 6.6 COMPONENTS Core5Compat REQUIRED)
@ -43,8 +31,7 @@ set (PMUSIC_CPP_FILES
    playlistmanager.cpp
    singleapplicationmanager.cpp
    lrcbar.cpp
-    lyricsmanager.cpp
-    fftspectrum.cpp
+    lyricsmanager.cpp
 )

 set (PMUSIC_HEADER_FILES
@ -53,8 +40,7 @@ set (PMUSIC_HEADER_FILES
    playlistmanager.h
    singleapplicationmanager.h
    lrcbar.h
-    lyricsmanager.h
-    fftspectrum.h
+    lyricsmanager.h
 )

 set (PMUSIC_UI_FILES
@ -94,7 +80,7 @@ if (TARGET KF6::Codecs)
    target_link_libraries (${EXE_NAME} PRIVATE KF6::Codecs)
 endif ()

-target_link_libraries(${EXE_NAME} PRIVATE Qt::Widgets Qt::Multimedia Qt::Network kissfft::kissfft)
+target_link_libraries(${EXE_NAME} PRIVATE Qt::Widgets Qt::Multimedia Qt::Network)

 if (USE_QTEXTCODEC)
    target_compile_definitions(${EXE_NAME} PRIVATE USE_QTEXTCODEC=1)
--- a/README.md
+++ b/README.md
@ -2,23 +2,12 @@

 Since **I** just need a simple player which *just works* right now, so I did many things in a dirty way. Don't feel so weird if you saw something I did in this project is using a bad approach.

-### Features
-
-We have the following features:
-
- [Sidecar](https://en.wikipedia.org/wiki/Sidecar_file) lyrics file (`.lrc`) support with an optional desktop lyrics bar widget
- Auto-load all audio files in the same folder of the file that you attempted to play, into a playlist
-
-But these features are not available, some of them are TBD and others are not planned:
+### Feature Notice

 - File format support will be limited by the [FFmpeg version that Qt 6 uses](https://doc.qt.io/qt-6/qtmultimedia-attribution-ffmpeg.html).
  - ...which if you use Qt's official binary, only contains the LGPLv2.1+ part. (already good enough, tho)
 - No music library management support and there won't be one!
  - It'll auto-load music files in the same folder of the file that you attempted to play, so organize your music files on a folder-basis.
- Limited system integration:
-  - No [SMTC](https://learn.microsoft.com/en-us/uwp/api/windows.media.systemmediatransportcontrols) support under Windows for now
-  - No [MPRIS](https://www.freedesktop.org/wiki/Specifications/mpris-spec/) support under Linux desktop for now
-  - No "playback progress on taskbar icon" and "taskbar thumbnail buttons" support whatever on Windows or Linux desktop for now
 - Limited lyrics (`.lrc`) loading support:
  - Currently no `.tlrc` (for translated lyrics) or `.rlrc` (for romanized lyrics) support.
  - Multi-line lyrics and duplicated timestamps are not supported
@ -31,7 +20,7 @@ Current state, we need:
 - `cmake` as the build system.
 - `qt6` with `qt6-multimedia` since we use it for playback.
 - `taglib` to get the audio file properties.
- - `kissfft` for FFT support (will be downloaded at configure-time by `cmake`).
+ - `pkg-config` to find the installed taglib.

 Then we can build it with any proper c++ compiler like g++ or msvc.

--- a/fftspectrum.cpp
+++ b/fftspectrum.cpp
@ -1,123 +0,0 @@
-// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#include "fftspectrum.h"
-
-#include <QAudioBuffer>
-#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-#include <QAudioBufferOutput>
-#endif // QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-#include <QPainter>
-
-#include <kissfft.hh>
-
-FFTSpectrum::FFTSpectrum(QWidget* parent)
-    : QWidget(parent)
-#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-    , m_audioBufferOutput(new QAudioBufferOutput(this))
-#endif // #if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-{
-#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-    connect(this, &FFTSpectrum::mediaPlayerChanged, this, [=]() {
-        if (m_mediaPlayer) {
-            m_mediaPlayer->setAudioBufferOutput(m_audioBufferOutput);
-        }
-    });
-
-    connect(m_audioBufferOutput, &QAudioBufferOutput::audioBufferReceived, this, [=](const QAudioBuffer& buffer) {
-        const QAudioFormat& fmt = buffer.format();
-        const QAudioFormat::SampleFormat sampleFormat = fmt.sampleFormat();
-        QAudioFormat::ChannelConfig channelConfig = fmt.channelConfig();
-        const QFlags supportedChannelConfig({ QAudioFormat::ChannelConfigMono, QAudioFormat::ChannelConfigStereo });
-        const int frameCount = buffer.frameCount();
-        kissfft<float> fft(frameCount, false);
-        std::vector<kissfft<float>::cpx_t> samples(frameCount);
-        std::vector<kissfft<float>::cpx_t> mass(frameCount);
-        if (sampleFormat == QAudioFormat::Int16 && supportedChannelConfig.testFlag(channelConfig)) {
-            if (channelConfig == QAudioFormat::ChannelConfigMono) {
-                const QAudioBuffer::S16M* data = buffer.constData<QAudioBuffer::S16M>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontCenter) / float(32768));
-                    samples[i].imag(0);
-                }
-            } else {
-                const QAudioBuffer::S16S* data = buffer.constData<QAudioBuffer::S16S>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontLeft) / float(32768));
-                    samples[i].imag(0);
-                }
-            }
-        } else if (sampleFormat == QAudioFormat::Int32 && supportedChannelConfig.testFlag(channelConfig)) {
-            if (channelConfig == QAudioFormat::ChannelConfigMono) {
-                const QAudioBuffer::S32M* data = buffer.constData<QAudioBuffer::S32M>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontCenter) / float(2147483647));
-                    samples[i].imag(0);
-                }
-            } else {
-                const QAudioBuffer::S32S* data = buffer.constData<QAudioBuffer::S32S>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontLeft) / float(2147483647));
-                    samples[i].imag(0);
-                }
-            }
-        } else if (sampleFormat == QAudioFormat::Float && supportedChannelConfig.testFlag(channelConfig)) {
-            if (channelConfig == QAudioFormat::ChannelConfigMono) {
-                const QAudioBuffer::F32M* data = buffer.constData<QAudioBuffer::F32M>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontCenter));
-                    samples[i].imag(0);
-                }
-            } else {
-                const QAudioBuffer::F32S* data = buffer.constData<QAudioBuffer::F32S>();
-                for (int i = 0; i < frameCount; ++i) {
-                    samples[i].real(data[i].value(QAudioFormat::FrontLeft));
-                    samples[i].imag(0);
-                }
-            }
-        } else {
-            qWarning() << "Unsupported format or channel config:" << sampleFormat << channelConfig;
-            return;
-        }
-        fft.transform(samples.data(), mass.data());
-        m_freq.resize(frameCount);
-        for (int i = 0; i < frameCount; i++) {
-            m_freq[i] = sqrt(mass[i].real() * mass[i].real() + mass[i].imag() * mass[i].imag());
-        }
-        for (auto& val : m_freq) {
-            val = log10(val + 1);
-        }
-        update();
-    });
-#endif // QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
-    resize(490, 420);
-}
-
-FFTSpectrum::~FFTSpectrum()
-{
-
-}
-
-void FFTSpectrum::setMediaPlayer(QMediaPlayer* player)
-{
-    m_mediaPlayer = player;
-    emit mediaPlayerChanged();
-}
-
-void FFTSpectrum::paintEvent(QPaintEvent* e)
-{
-    QPainter painter(this);
-
-    if (!m_freq.empty()) {
-        int width = this->width();
-        int height = this->height();
-        int barWidth = std::max(1ULL, width / m_freq.size());
-        for (int i = 0; i < m_freq.size(); i++) {
-            int barHeight = static_cast<int>(sqrt(m_freq[i]) * height * 0.5);
-            painter.fillRect(i * barWidth, height - barHeight, barWidth, barHeight, QColor(70, 130, 180, (int)(140 * m_freq[i]) + 90));
-        }
-    }
-}
-
-
--- a/fftspectrum.h
+++ b/fftspectrum.h
@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <QWidget>
-#include <QMediaPlayer>
-
-class QAudioBufferOutput;
-class FFTSpectrum : public QWidget
-{
-    Q_OBJECT
-    Q_PROPERTY(QMediaPlayer * mediaPlayer MEMBER m_mediaPlayer WRITE setMediaPlayer NOTIFY mediaPlayerChanged)
-public:
-    explicit FFTSpectrum(QWidget* parent);
-    ~FFTSpectrum();
-
-    void setMediaPlayer(QMediaPlayer* player);
-
-signals:
-    void mediaPlayerChanged();
-
-protected:
-    void paintEvent(QPaintEvent* e) override;
-
-private:
-    QMediaPlayer* m_mediaPlayer = nullptr;
-    QAudioBufferOutput* m_audioBufferOutput = nullptr;
-    std::vector<float> m_freq;
-};
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@ -6,7 +6,6 @@
 #include "./ui_mainwindow.h"

 #include "playlistmanager.h"
-#include "fftspectrum.h"
 #include "lrcbar.h"

 // taglib
@ -32,7 +31,6 @@
 #include <QAudioDevice>
 #include <QMessageBox>
 #include <QStringBuilder>
-#include <QSettings>

 constexpr QSize miniSize(490, 160);
 constexpr QSize fullSize(490, 420);
@ -43,7 +41,6 @@ MainWindow::MainWindow(QWidget *parent)
    , m_mediaDevices(new QMediaDevices(this))
    , m_mediaPlayer(new QMediaPlayer(this))
    , m_audioOutput(new QAudioOutput(this))
-    , m_fftSpectrum(new FFTSpectrum(this))
    , m_lrcbar(new LrcBar(nullptr))
    , m_playlistManager(new PlaylistManager(this))
 {
@ -51,20 +48,16 @@ MainWindow::MainWindow(QWidget *parent)
    m_playlistManager->setAutoLoadFilterSuffixes({
        "*.mp3", "*.wav", "*.aiff", "*.ape", "*.flac", "*.ogg", "*.oga", "*.mpga", "*.aac", "*.tta"
    });
-    m_fftSpectrum->setMediaPlayer(m_mediaPlayer);
    m_mediaPlayer->setAudioOutput(m_audioOutput);
    m_mediaPlayer->setLoops(QMediaPlayer::Infinite);
    ui->playlistView->setModel(m_playlistManager->model());

    ui->actionHelp->setShortcut(QKeySequence::HelpContents);
    addAction(ui->actionHelp);
-    ui->actionOpen->setShortcut(QKeySequence::Open);
-    addAction(ui->actionOpen);

    setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinimizeButtonHint);
    setAttribute(Qt::WA_TranslucentBackground, true);

-    loadConfig();
    loadSkinData();
    initConnections();
    initUiAndAnimation();
@ -74,7 +67,6 @@ MainWindow::MainWindow(QWidget *parent)

 MainWindow::~MainWindow()
 {
-    saveConfig();
    delete m_lrcbar;
    delete ui;
 }
@ -536,27 +528,9 @@ void MainWindow::initConnections()
   });
 }

-void MainWindow::loadConfig()
-{
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    QSettings settings(configDir.filePath("settings.ini"), QSettings::IniFormat);
-    ui->volumeSlider->setValue(settings.value("volume", 100).toInt());
-}
-
-void MainWindow::saveConfig()
-{
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    if (!configDir.exists()) {
-        configDir.mkpath(".");
-    }
-    QSettings settings(configDir.filePath("settings.ini"), QSettings::IniFormat);
-    settings.setValue("volume", ui->volumeSlider->value());
-}
-
 void MainWindow::loadSkinData()
 {
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    QFile file(configDir.filePath("skin.dat"));
+    QFile file(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation) + "/skin.dat");
    bool canOpen = file.open(QIODevice::ReadOnly);
    if (!canOpen) return;
    QDataStream stream(&file);
@ -632,10 +606,6 @@ void MainWindow::on_lrcBtn_clicked()
    }
 }

-void MainWindow::on_actionOpen_triggered()
-{
-    loadFile();
-}

 void MainWindow::on_actionHelp_triggered()
 {
--- a/mainwindow.h
+++ b/mainwindow.h
@ -17,7 +17,6 @@ class QAudioOutput;
 class QPropertyAnimation;
 QT_END_NAMESPACE

-class FFTSpectrum;
 class LrcBar;
 class PlaylistManager;
 class MainWindow : public QMainWindow
@ -76,7 +75,6 @@ private slots:
    void on_playListBtn_clicked();
    void on_playlistView_activated(const QModelIndex &index);
    void on_lrcBtn_clicked();
-    void on_actionOpen_triggered();
    void on_actionHelp_triggered();

 signals:
@ -94,7 +92,6 @@ private:
    QMediaDevices *m_mediaDevices;
    QMediaPlayer *m_mediaPlayer;
    QAudioOutput *m_audioOutput;
-    FFTSpectrum* m_fftSpectrum;
    LrcBar *m_lrcbar;
    QPropertyAnimation *m_fadeOutAnimation;
    PlaylistManager *m_playlistManager;
@ -102,8 +99,6 @@ private:
    void initUiAndAnimation();
    void initConnections();

-    void loadConfig();
-    void saveConfig();
    void loadSkinData();
    void saveSkinData();

--- a/mainwindow.ui
+++ b/mainwindow.ui
@ -72,7 +72,6 @@ QSlider::add-page:vertical {
 /****** PushButton ******/

 QPushButton {
-	color: white;
 	border: 0px solid grey;
 	background-color: transparent;
 }
@ -107,7 +106,6 @@ QLabel#coverLabel {
 /****** ListView ******/

 QListView {
-	color: white;
 	background: rgba(0, 0, 0, 50);
 }</string>
  </property>
@ -661,10 +659,7 @@ QListView {
  </widget>
  <action name="actionHelp">
   <property name="text">
-    <string>Help</string>
-   </property>
-   <property name="toolTip">
-    <string>Help</string>
+    <string>help</string>
   </property>
   <property name="shortcut">
    <string>F1</string>
@ -673,20 +668,6 @@ QListView {
    <enum>QAction::MenuRole::NoRole</enum>
   </property>
  </action>
-  <action name="actionOpen">
-   <property name="icon">
-    <iconset theme="document-open"/>
-   </property>
-   <property name="text">
-    <string>Open</string>
-   </property>
-   <property name="shortcut">
-    <string>Ctrl+O</string>
-   </property>
-   <property name="menuRole">
-    <enum>QAction::MenuRole::NoRole</enum>
-   </property>
-  </action>
 </widget>
 <customwidgets>
  <customwidget>