chore: add about dialog

to make it easier to know if taglib and/or libchardet are used.

CMakeLists.txt

@@ -68,19 +68,13 @@ if (WIN32)
 endif ()
 
 if (NOT TagLib_FOUND)
-    message (WARNING "TagLib not found!")
-    target_compile_definitions(${EXE_NAME} PRIVATE
-        NO_TAGLIB=1
-    )
+    target_compile_definitions(${EXE_NAME} PRIVATE NO_TAGLIB=1)
 else ()
     target_link_libraries(${EXE_NAME} PRIVATE PkgConfig::TagLib)
 endif ()
 
 if (NOT uchardet_FOUND)
-    message (WARNING "uchardet not found!")
-    target_compile_definitions(${EXE_NAME} PRIVATE
-        NO_UCHARDET=1
-    )
+    target_compile_definitions(${EXE_NAME} PRIVATE NO_UCHARDET=1)
 else ()
     target_link_libraries (${EXE_NAME} PRIVATE uchardet::libuchardet)
 endif ()

mainwindow.cpp

@@ -29,6 +29,8 @@
 #include <QStandardPaths>
 #include <QMediaDevices>
 #include <QAudioDevice>
+#include <QMessageBox>
+#include <QStringBuilder>
 
 constexpr QSize miniSize(490, 160);
 constexpr QSize fullSize(490, 420);
@@ -50,6 +52,9 @@ MainWindow::MainWindow(QWidget *parent)
     m_mediaPlayer->setLoops(QMediaPlayer::Infinite);
     ui->playlistView->setModel(m_playlistManager->model());
 
+    ui->actionHelp->setShortcut(QKeySequence::HelpContents);
+    addAction(ui->actionHelp);
+
     setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinimizeButtonHint);
     setAttribute(Qt::WA_TranslucentBackground, true);
 
@@ -599,3 +604,31 @@ void MainWindow::on_lrcBtn_clicked()
     }
 }
 
+
+void MainWindow::on_actionHelp_triggered()
+{
+    QMessageBox infoBox(this);
+    infoBox.setIcon(QMessageBox::Information);
+    infoBox.setWindowTitle(tr("About"));
+    infoBox.setStandardButtons(QMessageBox::Ok);
+    infoBox.setText(
+        tr("Pineapple Music") %
+        "\n\n" %
+        tr("Based on the following free software libraries:") %
+        "\n\n" %
+        QStringLiteral("- [Qt](https://www.qt.io/) %1\n").arg(QT_VERSION_STR) %
+#ifndef NO_TAGLIB
+        QStringLiteral("- [TagLib](https://github.com/taglib/taglib)\n") %
+#endif // NO_TAGLIB
+#ifndef NO_UCHARDET
+        QStringLiteral("- [uchardet](https://www.freedesktop.org/wiki/Software/uchardet/)\n") %
+#endif // NO_TAGLIB
+        "\n"
+        "[Source Code](https://github.com/BLumia/pineapple-music)\n"
+        "\n"
+        "Copyright &copy; 2024 [BLumia](https://github.com/BLumia/)"
+        );
+    infoBox.setTextFormat(Qt::MarkdownText);
+    infoBox.exec();
+}
+

mainwindow.h

@@ -75,6 +75,7 @@ private slots:
     void on_playListBtn_clicked();
     void on_playlistView_activated(const QModelIndex &index);
     void on_lrcBtn_clicked();
+    void on_actionHelp_triggered();
 
 signals:
     void playbackModeChanged(enum PlaybackMode mode);

mainwindow.ui

@@ -657,6 +657,17 @@ QListView {
     </item>
    </layout>
   </widget>
+  <action name="actionHelp">
+   <property name="text">
+    <string>help</string>
+   </property>
+   <property name="shortcut">
+    <string>F1</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>