Did more work on the bindings between the audio and view

src/core/SongHistory/SongHistory.hpp

@@ -10,10 +10,10 @@ private:
     Node* next;
   };
 
-  Node* topNode = nullptr;
+  Node* topNode;
 
 public:
-  SongHistory( ) { }
+  SongHistory( ) : topNode(nullptr) { }
   ~SongHistory( ) {
     while (!isEmpty( ))
       pop( );

src/core/audio/audio.cpp

@@ -22,7 +22,7 @@ Audio::~Audio( ) {
 void Audio::StartMusic( ) {
   if (Mix_PlayingMusic( ) == 0) {
     //TODO: Get the loop status from the FloatingControls widget and replace the 1
-    Mix_PlayMusic(music, 1);
+    Mix_PlayMusic(music, this->loop);
   }
 }
 
@@ -43,6 +43,7 @@ void Audio::PlaySong(const std::string path) {
     SDL_Quit( );
     return;
   }
+  Mix_PlayMusic(music, this->loop);
 }
 
 void Audio::PauseMusic( ) {
@@ -57,6 +58,17 @@ void Audio::ResumeMusic( ) {
   }
 }
 
+void Audio::TogglePlayPause( ) {
+  if (IsMusicPaused( ))
+    ResumeMusic( );
+  else
+    PauseMusic( );
+}
+
+bool Audio::IsMusicPaused( ) {
+  return (Mix_PausedMusic( ) == 1);
+}
+
 bool Audio::IsMusicPlaying( ) {
   return (Mix_PlayingMusic( ) != 0);
 }
@@ -112,7 +124,7 @@ QPixmap Audio::GetAlbumCover( ) {
 }
 
 int Audio::GetVolume( ) {
-  return Mix_GetMusicVolume(music);
+  return Mix_VolumeMusic(-1);
 }
 
 void Audio::SetVolume(int vol) {

src/core/audio/audio.h

@@ -12,6 +12,12 @@ extern "C" {
 
 #include <iostream>
 
+enum Loop {
+  None,
+  All,
+  Once
+};
+
 class Audio {
 public:
   static Audio& getInstance( ) {
@@ -24,6 +30,7 @@ private:
   std::string path;
   std::string artist;
   std::string album;
+  Loop loop;
 
   Mix_Music* music;
 
@@ -50,7 +57,8 @@ public:
   void PauseMusic( );
   void ResumeMusic( );
   bool IsMusicPlaying( );
-
+  void TogglePlayPause( );
+  bool IsMusicPaused( );
   void SetVolume(int vol);
   int GetVolume( );
 };

src/core/song/song.h

@@ -51,4 +51,8 @@ public:
 
   std::string GetPath( ) { return path; };
 
+  std::string GetTitle( ) { return title; }
+  std::string GetAlbum( ) { return album; }
+  std::string GetArtist( ) { return artist; }
+
 };