Fix majors memory leaks (TODO: shared_ptr for Game objects and implement ~Game())

src/game_tab/left_panel/board/BoardCanvas.cpp

@@ -14,6 +14,11 @@ BoardCanvas::BoardCanvas(wxFrame *parent)
   ApplyPreferences();
 }
 
+BoardCanvas::~BoardCanvas() {
+  delete t;
+  delete t_captures;
+}
+
 BoardCanvas::BoardCanvas(wxFrame *parent, std::uint32_t square_width,
                          bool frozen)
     : BoardCanvas(parent) {

src/game_tab/left_panel/board/BoardCanvas.hpp

@@ -54,6 +54,7 @@ class BoardCanvas : public wxPanel {
 public:
   BoardCanvas(wxFrame *parent);
   BoardCanvas(wxFrame *parent,std::uint32_t square_width, bool frozen);
+  ~BoardCanvas();
   void ApplyPreferences();
   void DrawBoard(wxPaintDC &dc);
   void OnPaint(wxPaintEvent &event);

src/game_tab/right_panel/LiveEngineDialog.cpp

@@ -13,6 +13,13 @@ LiveEngineDialog::LiveEngineDialog(wxWindow *parent, std::string engine_name)
   Bind(wxEVT_CLOSE_WINDOW, &LiveEngineDialog::OnClose, this);
 }
 
+LiveEngineDialog::~LiveEngineDialog() {
+  if (engine != NULL) {
+    wxLogDebug("LiveEngineDialog destructor: delete engine");
+    delete engine;
+  }
+}
+
 void LiveEngineDialog::InitEngine() {
   if (engine == NULL) {
     wxLogDebug("Start engine: %s", engine_name);
@@ -51,9 +58,8 @@ void LiveEngineDialog::OnClose(wxCloseEvent &e) {
     timer.Stop();
     engine->stop();
     engine->quit();
-    delete engine;
   }
-  e.Skip();
+  Destroy();
 }
 
 void LiveEngineDialog::SetFEN(std::string fen) {

src/game_tab/right_panel/LiveEngineDialog.hpp

@@ -10,6 +10,7 @@ class LiveEngineDialog : public DialogLiveEngine {
 
 public:
   LiveEngineDialog(wxWindow *parent, std::string engine_name);
+  ~LiveEngineDialog();
   void InitEngine();
   void TogglePauseEngine(wxCommandEvent &event);
   void OnTimerTick(wxTimerEvent &event);