do not initialize screens lazily as it doesn't make much sense

src/actions.cpp

@@ -93,6 +93,42 @@ void Action::ValidateScreenSize()
 	}
 }
 
+void Action::InitializeScreens()
+{
+	myHelp = new Help;
+	myPlaylist = new Playlist;
+	myBrowser = new Browser;
+	mySearcher = new SearchEngine;
+	myLibrary = new MediaLibrary;
+	myPlaylistEditor = new PlaylistEditor;
+	myLyrics = new Lyrics;
+	mySelectedItemsAdder = new SelectedItemsAdder;
+	mySongInfo = new SongInfo;
+	mySortPlaylistDialog = new SortPlaylistDialog;
+	
+#	ifdef HAVE_CURL_CURL_H
+	myLastfm = new Lastfm;
+#	endif // HAVE_CURL_CURL_H
+	
+#	ifdef HAVE_TAGLIB_H
+	myTinyTagEditor = new TinyTagEditor;
+	myTagEditor = new TagEditor;
+#	endif // HAVE_TAGLIB_H
+	
+#	ifdef ENABLE_VISUALIZER
+	myVisualizer = new Visualizer;
+#	endif // ENABLE_VISUALIZER
+	
+#	ifdef ENABLE_OUTPUTS
+	myOutputs = new Outputs;
+#	endif // ENABLE_OUTPUTS
+	
+#	ifdef ENABLE_CLOCK
+	myClock = new Clock;
+#	endif // ENABLE_CLOCK
+	
+}
+
 void Action::SetResizeFlags()
 {
 	myHelp->hasToBeResized = 1;
@@ -891,8 +927,6 @@ void SavePlaylist::Run()
 			if (result == MPD_ERROR_SUCCESS)
 			{
 				Statusbar::msg("Playlist saved as \"%s\"", playlist_name.c_str());
-				if (myPlaylistEditor->main()) // check if initialized
-					myPlaylistEditor->Playlists->clear(); // make playlist's list update itself
 			}
 			else if (result == MPD_SERVER_ERROR_EXIST)
 			{
@@ -905,15 +939,12 @@ void SavePlaylist::Run()
 				}
 				else
 					Statusbar::msg("Aborted");
-				if (myPlaylistEditor->main()) // check if initialized
-					myPlaylistEditor->Playlists->clear(); // make playlist's list update itself
 				if (myScreen == myPlaylist)
 					myPlaylist->EnableHighlighting();
 			}
 		}
 	}
-	if (myBrowser->main()
-	&&  !myBrowser->isLocal()
+	if (!myBrowser->isLocal()
 	&&  myBrowser->CurrentDir() == "/"
 	&&  !myBrowser->main()->empty())
 		myBrowser->GetDirectory(myBrowser->CurrentDir());
@@ -1522,10 +1553,8 @@ void EditPlaylistName::Run()
 		{
 			const char msg[] = "Playlist renamed to \"%ls\"";
 			Statusbar::msg(msg, wideShorten(ToWString(new_name), COLS-const_strlen(msg)).c_str());
-			if (myBrowser->main() && !myBrowser->isLocal())
+			if (!myBrowser->isLocal())
 				myBrowser->GetDirectory("/");
-			if (myPlaylistEditor->main())
-				myPlaylistEditor->Playlists->clear();
 		}
 	}
 }
@@ -2145,7 +2174,7 @@ bool SetSelectedItemsPriority::canBeRun() const
 		Statusbar::msg("Priorities are supported in MPD >= 0.17.0");
 		return false;
 	}
-	return myScreen->activeWindow() == myPlaylist->main() && !myPlaylist->main()->empty();
+	return myScreen == myPlaylist && !myPlaylist->main()->empty();
 }
 
 void SetSelectedItemsPriority::Run()
@@ -2260,7 +2289,7 @@ void NextScreen::Run()
 	}
 	else if (!Config.screens_seq.empty())
 	{
-		std::list<BasicScreen *>::const_iterator screen = std::find(Config.screens_seq.begin(), Config.screens_seq.end(), myScreen);
+		auto screen = std::find(Config.screens_seq.begin(), Config.screens_seq.end(), myScreen);
 		if (++screen == Config.screens_seq.end())
 			Config.screens_seq.front()->switchTo();
 		else
@@ -2282,7 +2311,7 @@ void PreviousScreen::Run()
 	}
 	else if (!Config.screens_seq.empty())
 	{
-		std::list<BasicScreen *>::const_iterator screen = std::find(Config.screens_seq.begin(), Config.screens_seq.end(), myScreen);
+		auto screen = std::find(Config.screens_seq.begin(), Config.screens_seq.end(), myScreen);
 		if (screen == Config.screens_seq.begin())
 			Config.screens_seq.back()->switchTo();
 		else

src/actions.h

@@ -73,6 +73,7 @@ struct Action
 	}
 	
 	static void ValidateScreenSize();
+	static void InitializeScreens();
 	static void SetResizeFlags();
 	static void ResizeScreen(bool reload_main_window);
 	static void SetWindowsDimensions();

src/browser.cpp

@@ -49,7 +49,7 @@ using MPD::itDirectory;
 using MPD::itSong;
 using MPD::itPlaylist;
 
-Browser *myBrowser = new Browser;
+Browser *myBrowser;
 
 namespace {//
 
@@ -61,7 +61,7 @@ bool BrowserEntryMatcher(const Regex &rx, const MPD::Item &item, bool filter);
 
 }
 
-void Browser::init()
+Browser::Browser() : itsBrowseLocally(0), itsScrollBeginning(0), itsBrowsedDir("/")
 {
 	w = new NC::Menu<MPD::Item>(0, MainStartY, COLS, MainHeight, Config.columns_in_browser && Config.titles_visibility ? Display::Columns(COLS) : "", Config.main_color, NC::brNone);
 	w->setHighlightColor(Config.main_highlight_color);
@@ -73,8 +73,6 @@ void Browser::init()
 	
 	if (SupportedExtensions.empty())
 		Mpd.GetSupportedExtensions(SupportedExtensions);
-	
-	isInitialized = 1;
 }
 
 void Browser::resize()
@@ -99,9 +97,6 @@ void Browser::switchTo()
 #		endif // !WIN32
 	}
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/browser.h

@@ -27,7 +27,7 @@
 
 struct Browser : public Screen< NC::Menu<MPD::Item> >, public Filterable, public HasSongs, public Searchable
 {
-	Browser() : itsBrowseLocally(0), itsScrollBeginning(0), itsBrowsedDir("/") { }
+	Browser();
 	
 	// Screen< NC::Menu<MPD::Item> > implementation
 	virtual void resize() OVERRIDE;
@@ -80,7 +80,6 @@ struct Browser : public Screen< NC::Menu<MPD::Item> >, public Filterable, public
 	}
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/clock.cpp

@@ -38,7 +38,7 @@ using Global::MainHeight;
 using Global::MainStartY;
 using Global::myScreen;
 
-Clock *myClock = new Clock;
+Clock *myClock;
 
 short Clock::disp[11] =
 {
@@ -52,13 +52,12 @@ long Clock::older[6], Clock::next[6], Clock::newer[6], Clock::mask;
 size_t Clock::Width;
 const size_t Clock::Height = 8;
 
-void Clock::init()
+Clock::Clock()
 {
 	Width = Config.clock_display_seconds ? 60 : 40;
 	
 	itsPane = new NC::Window(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
 	w = new NC::Window((COLS-Width)/2, (MainHeight-Height)/2+MainStartY, Width, Height-1, "", Config.main_color, NC::Border(Config.main_color));
-	isInitialized = 1;
 }
 
 void Clock::resize()
@@ -82,9 +81,6 @@ void Clock::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/clock.h

@@ -30,6 +30,8 @@
 
 struct Clock : public Screen<NC::Window>
 {
+	Clock();
+	
 	virtual void resize() OVERRIDE;
 	virtual void switchTo() OVERRIDE;
 	
@@ -46,7 +48,6 @@ struct Clock : public Screen<NC::Window>
 	virtual bool isMergable() OVERRIDE { return true; }
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/help.cpp

@@ -31,7 +31,7 @@
 using Global::MainHeight;
 using Global::MainStartY;
 
-Help *myHelp = new Help;
+Help *myHelp;
 
 namespace {//
 
@@ -95,12 +95,11 @@ std::string keyToString(const Key &key, bool *print_backspace)
 
 }
 
-void Help::init()
+Help::Help()
 {
 	w = new NC::Scrollpad(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
 	GetKeybindings();
 	w->flush();
-	isInitialized = 1;
 }
 
 void Help::resize()
@@ -120,9 +119,6 @@ void Help::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/help.h

@@ -26,6 +26,8 @@
 
 struct Help : public Screen<NC::Scrollpad>
 {
+	Help();
+	
 	virtual void resize() OVERRIDE;
 	virtual void switchTo() OVERRIDE;
 	
@@ -40,7 +42,6 @@ struct Help : public Screen<NC::Scrollpad>
 	virtual bool isMergable() OVERRIDE { return true; }
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/lastfm.cpp

@@ -43,12 +43,11 @@
 using Global::MainHeight;
 using Global::MainStartY;
 
-Lastfm *myLastfm = new Lastfm;
+Lastfm *myLastfm;
 
-void Lastfm::init()
+Lastfm::Lastfm() : isReadyToTake(0), isDownloadInProgress(0)
 {
 	w = new NC::Scrollpad(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
-	isInitialized = 1;
 }
 
 void Lastfm::resize()
@@ -90,9 +89,6 @@ void Lastfm::switchTo()
 	if (myScreen == this)
 		return myOldScreen->switchTo();
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/lastfm.h

@@ -33,7 +33,7 @@
 
 struct Lastfm : public Screen<NC::Scrollpad>
 {
-	Lastfm() : isReadyToTake(0), isDownloadInProgress(0) { }
+	Lastfm();
 	
 	// Screen<NC::Scrollpad>
 	virtual void switchTo() OVERRIDE;
@@ -56,7 +56,6 @@ struct Lastfm : public Screen<NC::Scrollpad>
 	bool SetArtistInfoArgs(const std::string &artist, const std::string &lang = "");
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/lyrics.cpp

@@ -48,12 +48,15 @@ pthread_mutex_t Lyrics::itsDIBLock = PTHREAD_MUTEX_INITIALIZER;
 size_t Lyrics::itsWorkersNumber = 0;
 #endif // HAVE_CURL_CURL_H
 
-Lyrics *myLyrics = new Lyrics;
+Lyrics *myLyrics;
 
-void Lyrics::init()
+Lyrics::Lyrics() : ReloadNP(0),
+#ifdef HAVE_CURL_CURL_H
+	isReadyToTake(0), isDownloadInProgress(0),
+#endif // HAVE_CURL_CURL_H
+	itsScrollBegin(0)
 {
 	w = new NC::Scrollpad(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
-	isInitialized = 1;
 }
 
 void Lyrics::resize()
@@ -99,9 +102,6 @@ void Lyrics::switchTo()
 	if (myScreen == this)
 		return myOldScreen->switchTo();
 	
-	if (!isInitialized)
-		init();
-	
 	if (hasToBeResized)
 		resize();
 	

src/lyrics.h

@@ -30,11 +30,7 @@
 
 struct Lyrics : public Screen<NC::Scrollpad>
 {
-	Lyrics() : ReloadNP(0),
-#	ifdef HAVE_CURL_CURL_H
-	isReadyToTake(0), isDownloadInProgress(0),
-#	endif // HAVE_CURL_CURL_H
-	itsScrollBegin(0) { }
+	Lyrics();
 	
 	// Screen<NC::Scrollpad> implementation
 	virtual void resize() OVERRIDE;
@@ -63,7 +59,6 @@ struct Lyrics : public Screen<NC::Scrollpad>
 	bool ReloadNP;
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/media_library.cpp

@@ -42,7 +42,7 @@ using Global::MainHeight;
 using Global::MainStartY;
 using Global::myScreen;
 
-MediaLibrary *myLibrary = new MediaLibrary;
+MediaLibrary *myLibrary;
 
 namespace {//
 
@@ -112,7 +112,7 @@ public:
 
 }
 
-void MediaLibrary::init()
+MediaLibrary::MediaLibrary()
 {
 	hasTwoColumns = 0;
 	itsLeftColWidth = COLS/3-1;
@@ -146,7 +146,6 @@ void MediaLibrary::init()
 	Songs->setItemDisplayer(std::bind(Display::Songs, _1, this, Config.song_library_format));
 	
 	w = Tags;
-	isInitialized = 1;
 }
 
 void MediaLibrary::resize()
@@ -228,9 +227,6 @@ void MediaLibrary::switchTo()
 		}
 	}
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/media_library.h

@@ -26,6 +26,8 @@
 
 struct MediaLibrary : public Screen<NC::Window>, public Filterable, public HasColumns, public HasSongs, public Searchable
 {
+	MediaLibrary();
+	
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
 	
@@ -89,8 +91,7 @@ struct MediaLibrary : public Screen<NC::Window>, public Filterable, public HasCo
 	NC::Menu<MPD::Song> *Songs;
 	
 protected:
-	virtual void init();
-	virtual bool isLockable() { return true; }
+	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:
 	void AddToPlaylist(bool);

src/ncmpcpp.cpp

@@ -152,6 +152,7 @@ int main(int argc, char **argv)
 	
 	Action::SetWindowsDimensions();
 	Action::ValidateScreenSize();
+	Action::InitializeScreens();
 	
 	wHeader = new NC::Window(0, 0, COLS, Action::HeaderHeight, "", Config.header_color, NC::brNone);
 	if (Config.header_visibility || Config.new_design)

src/outputs.cpp

@@ -33,9 +33,9 @@ using Global::MainHeight;
 using Global::MainStartY;
 using Global::myScreen;
 
-Outputs *myOutputs = new Outputs;
+Outputs *myOutputs;
 
-void Outputs::init()
+Outputs::Outputs()
 {
 	w = new NC::Menu<MPD::Output>(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
 	w->cyclicScrolling(Config.use_cyclic_scrolling);
@@ -43,7 +43,6 @@ void Outputs::init()
 	w->setHighlightColor(Config.main_highlight_color);
 	w->setItemDisplayer(Display::Outputs);
 	
-	isInitialized = 1;
 	FetchList();
 }
 
@@ -54,9 +53,6 @@ void Outputs::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	
@@ -116,8 +112,6 @@ void Outputs::mouseButtonPressed(MEVENT me)
 
 void Outputs::FetchList()
 {
-	if (!isInitialized)
-		return;
 	w->clear();
 	auto outputs = Mpd.GetOutputs();
 	for (auto o = outputs.begin(); o != outputs.end(); ++o)

src/outputs.h

@@ -31,6 +31,8 @@
 
 struct Outputs : public Screen< NC::Menu<MPD::Output> >
 {
+	Outputs();
+	
 	// Screen< NC::Menu<MPD::Output> > implementation
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
@@ -50,7 +52,6 @@ struct Outputs : public Screen< NC::Menu<MPD::Output> >
 	void FetchList();
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 };
 

src/playlist.cpp

@@ -38,7 +38,7 @@ using namespace std::placeholders;
 using Global::MainHeight;
 using Global::MainStartY;
 
-Playlist *myPlaylist = new Playlist;
+Playlist *myPlaylist;
 
 bool Playlist::ReloadTotalLength = 0;
 bool Playlist::ReloadRemaining = false;
@@ -50,7 +50,7 @@ bool playlistEntryMatcher(const Regex &rx, const MPD::Song &s);
 
 }
 
-void Playlist::init()
+Playlist::Playlist() : itsTotalLength(0), itsRemainingTime(0), itsScrollBegin(0)
 {
 	w = new NC::Menu<MPD::Song>(0, MainStartY, COLS, MainHeight, Config.columns_in_playlist && Config.titles_visibility ? Display::Columns(COLS) : "", Config.main_color, NC::brNone);
 	w->cyclicScrolling(Config.use_cyclic_scrolling);
@@ -62,8 +62,6 @@ void Playlist::init()
 		w->setItemDisplayer(std::bind(Display::SongsInColumns, _1, this));
 	else
 		w->setItemDisplayer(std::bind(Display::Songs, _1, this, Config.song_list_format));
-	
-	isInitialized = 1;
 }
 
 void Playlist::switchTo()
@@ -75,9 +73,6 @@ void Playlist::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	itsScrollBegin = 0;
 	
 	if (myLockedScreen)

src/playlist.h

@@ -29,8 +29,7 @@
 
 struct Playlist : public Screen<NC::Menu<MPD::Song>>, public Filterable, public HasSongs, public Searchable
 {
-	Playlist() : itsTotalLength(0), itsRemainingTime(0), itsScrollBegin(0) { }
-	~Playlist() { }
+	Playlist();
 	
 	// Screen<NC::Menu<MPD::Song>> implementation
 	virtual void switchTo() OVERRIDE;
@@ -90,7 +89,6 @@ struct Playlist : public Screen<NC::Menu<MPD::Song>>, public Filterable, public
 	static bool ReloadRemaining;
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/playlist_editor.cpp

@@ -40,7 +40,7 @@ using namespace std::placeholders;
 using Global::MainHeight;
 using Global::MainStartY;
 
-PlaylistEditor *myPlaylistEditor = new PlaylistEditor;
+PlaylistEditor *myPlaylistEditor;
 
 namespace {//
 
@@ -55,7 +55,7 @@ bool SongEntryMatcher(const Regex &rx, const MPD::Song &s);
 
 }
 
-void PlaylistEditor::init()
+PlaylistEditor::PlaylistEditor()
 {
 	LeftColumnWidth = COLS/3-1;
 	RightColumnStartX = LeftColumnWidth+1;
@@ -81,7 +81,6 @@ void PlaylistEditor::init()
 		Content->setItemDisplayer(std::bind(Display::Songs, _1, this, Config.song_list_format));
 	
 	w = Playlists;
-	isInitialized = 1;
 }
 
 void PlaylistEditor::resize()
@@ -123,9 +122,6 @@ void PlaylistEditor::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	
@@ -509,8 +505,6 @@ void PlaylistEditor::nextColumn()
 
 void PlaylistEditor::Locate(const std::string &name)
 {
-	if (!isInitialized)
-		init();
 	update();
 	for (size_t i = 0; i < Playlists->size(); ++i)
 	{

src/playlist_editor.h

@@ -26,6 +26,8 @@
 
 struct PlaylistEditor : public Screen<NC::Window>, public Filterable, public HasColumns, public HasSongs, public Searchable
 {
+	PlaylistEditor();
+	
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
 	
@@ -78,7 +80,6 @@ struct PlaylistEditor : public Screen<NC::Window>, public Filterable, public Has
 	NC::Menu<MPD::Song> *Content;
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/screen.h

@@ -32,9 +32,7 @@ void scrollpadMouseButtonPressed(NC::Scrollpad *w, MEVENT me);
 /// basic class to be non-template to allow it.
 struct BasicScreen
 {
-	/// Initializes all variables to zero
-	BasicScreen() : hasToBeResized(0), isInitialized(0) { }
-	
+	BasicScreen() : hasToBeResized(false) { }
 	virtual ~BasicScreen() { }
 	
 	/// @see Screen::activeWindow()
@@ -93,12 +91,6 @@ struct BasicScreen
 	static void unlock();
 	
 protected:
-	/// Since screens initialization is lazy, we don't want to do
-	/// this in the constructor. This function should be invoked
-	/// only once and after that isInitialized flag has to be set
-	/// to true to somehow avoid next attempt of initialization.
-	virtual void init() = 0;
-	
 	/// @return true if screen can be locked. Note that returning
 	/// false here doesn't neccesarily mean that screen is also not
 	/// mergable (eg. lyrics screen is not lockable since that wouldn't
@@ -110,9 +102,6 @@ protected:
 	/// automatically adjust locked screen's dimensions (if there is one set)
 	/// if current screen is going to be subwindow.
 	void getWindowResizeParams(size_t &x_offset, size_t &width, bool adjust_locked_screen = true);
-	
-	/// Flag that inditates whether the screen is initialized or not
-	bool isInitialized;
 };
 
 void applyToVisibleWindows(void (BasicScreen::*f)());

src/search_engine.cpp

@@ -38,7 +38,7 @@ using namespace std::placeholders;
 using Global::MainHeight;
 using Global::MainStartY;
 
-SearchEngine *mySearcher = new SearchEngine;
+SearchEngine *mySearcher;
 
 namespace {//
 
@@ -101,7 +101,7 @@ size_t SearchEngine::StaticOptions = 20;
 size_t SearchEngine::ResetButton = 16;
 size_t SearchEngine::SearchButton = 15;
 
-void SearchEngine::init()
+SearchEngine::SearchEngine()
 {
 	w = new NC::Menu<SEItem>(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
 	w->setHighlightColor(Config.main_highlight_color);
@@ -111,7 +111,6 @@ void SearchEngine::init()
 	w->setSelectedPrefix(Config.selected_item_prefix);
 	w->setSelectedSuffix(Config.selected_item_suffix);
 	SearchMode = &SearchModes[Config.search_engine_default_search_mode];
-	isInitialized = 1;
 }
 
 void SearchEngine::resize()
@@ -135,9 +134,6 @@ void SearchEngine::switchTo()
 		return;
 	}
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/search_engine.h

@@ -75,6 +75,8 @@ struct SEItem
 
 struct SearchEngine : public Screen< NC::Menu<SEItem> >, public Filterable, public HasSongs, public Searchable
 {
+	SearchEngine();
+	
 	// Screen< NC::Menu<SEItem> > implementation
 	virtual void resize() OVERRIDE;
 	virtual void switchTo() OVERRIDE;
@@ -115,7 +117,6 @@ struct SearchEngine : public Screen< NC::Menu<SEItem> >, public Filterable, publ
 	static size_t ResetButton;
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/sel_items_adder.cpp

@@ -37,9 +37,9 @@ using Global::MainStartY;
 using Global::myScreen;
 using Global::myOldScreen;
 
-SelectedItemsAdder *mySelectedItemsAdder = new SelectedItemsAdder;
+SelectedItemsAdder *mySelectedItemsAdder;
 
-void SelectedItemsAdder::init()
+SelectedItemsAdder::SelectedItemsAdder() : itsPSWidth(35), itsPSHeight(11)
 {
 	SetDimensions();
 	itsPlaylistSelector = new NC::Menu<std::string>((COLS-itsWidth)/2, (MainHeight-itsHeight)/2+MainStartY, itsWidth, itsHeight, "Add selected item(s) to...", Config.main_color, Config.window_border);
@@ -62,7 +62,6 @@ void SelectedItemsAdder::init()
 	itsPositionSelector->addItem("Cancel");
 	
 	w = itsPlaylistSelector;
-	isInitialized = 1;
 }
 
 void SelectedItemsAdder::switchTo()
@@ -76,9 +75,6 @@ void SelectedItemsAdder::switchTo()
 	if (!hs || !hs->allowsSelection())
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	// default to main window
 	w = itsPlaylistSelector;
 	
@@ -189,14 +185,6 @@ void SelectedItemsAdder::enterPressed()
 			if (Mpd.CommitCommandsList())
 				Statusbar::msg("Selected item(s) added to playlist \"%s\"", w->current().value().c_str());
 		}
-		if (pos != w->size()-1)
-		{
-			// refresh playlist's lists
-			if (myBrowser->main() && !myBrowser->isLocal() && myBrowser->CurrentDir() == "/")
-				myBrowser->GetDirectory("/");
-			if (myPlaylistEditor->main())
-				myPlaylistEditor->Playlists->clear(); // make playlist editor update itself
-		}
 	}
 	else
 	{

src/sel_items_adder.h

@@ -25,7 +25,7 @@
 
 struct SelectedItemsAdder : public Screen< NC::Menu<std::string> >
 {
-	SelectedItemsAdder() : itsPSWidth(35), itsPSHeight(11) { }
+	SelectedItemsAdder();
 	
 	// Screen< NC::Menu<std::string> > implementation
 	virtual void switchTo() OVERRIDE;
@@ -44,7 +44,6 @@ struct SelectedItemsAdder : public Screen< NC::Menu<std::string> >
 	virtual bool isTabbable() OVERRIDE { return false; }
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/server_info.cpp

@@ -32,15 +32,13 @@ using Global::myOldScreen;
 
 ServerInfo *myServerInfo = new ServerInfo;
 
-void ServerInfo::init()
+ServerInfo::ServerInfo()
 {
 	SetDimensions();
 	w = new NC::Scrollpad((COLS-itsWidth)/2, (MainHeight-itsHeight)/2+MainStartY, itsWidth, itsHeight, "MPD server info", Config.main_color, Config.window_border);
 	
 	itsURLHandlers = Mpd.GetURLHandlers();
 	itsTagTypes = Mpd.GetTagTypes();
-	
-	isInitialized = 1;
 }
 
 void ServerInfo::switchTo()
@@ -53,9 +51,6 @@ void ServerInfo::switchTo()
 		return;
 	}
 	
-	if (!isInitialized)
-		init();
-	
 	// resize() can fall back to old screen, so we need it updated
 	myOldScreen = myScreen;
 	

src/server_info.h

@@ -25,6 +25,8 @@
 
 struct ServerInfo : public Screen<NC::Scrollpad>
 {
+	ServerInfo();
+	
 	// Screen<NC::Scrollpad> implementation
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
@@ -40,7 +42,6 @@ struct ServerInfo : public Screen<NC::Scrollpad>
 	virtual bool isTabbable() OVERRIDE { return false; }
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/settings.cpp

@@ -87,7 +87,7 @@ namespace
 		return NC::Border(stringToColor(border));
 	}
 	
-	BasicScreen *intToScreen(int n)
+	ScreenRef intToScreen(int n)
 	{
 		switch (n)
 		{
@@ -120,7 +120,7 @@ namespace
 				return myClock;
 #			endif // ENABLE_CLOCK
 			default:
-				return 0;
+				return ScreenRef();
 		}
 	}
 	
@@ -667,7 +667,7 @@ void Configuration::Read()
 							++it;
 						if (it == v.end())
 							break;
-						if (BasicScreen *screen = intToScreen(atoi(&*it)))
+						if (auto screen = intToScreen(atoi(&*it)))
 							screens_seq.push_back(screen);
 						while (it != v.end() && isdigit(*it))
 							++it;

src/settings.h

@@ -45,6 +45,27 @@ struct Column
 	bool display_empty_tag;
 };
 
+// FIXME: temporary hack
+struct ScreenRef
+{
+	ScreenRef() : m_ptr(0) { }
+	template <typename ScreenT>
+	ScreenRef(ScreenT *&ptr) : m_ptr(reinterpret_cast<BasicScreen **>(&ptr)) { }
+	
+	BasicScreen &operator*() const { return **m_ptr; }
+	BasicScreen *operator->() const { return *m_ptr; }
+	
+	bool operator==(const ScreenRef &rhs) const { return m_ptr == rhs.m_ptr; }
+	bool operator!=(const ScreenRef &rhs) const { return m_ptr != rhs.m_ptr; }
+	bool operator==(const BasicScreen *rhs) const { return *m_ptr == rhs; }
+	bool operator!=(const BasicScreen *rhs) const { return *m_ptr != rhs; }
+	
+	operator bool() { return m_ptr != 0; }
+	
+private:
+	BasicScreen **m_ptr;
+};
+
 struct Configuration
 {
 	Configuration();
@@ -187,8 +208,8 @@ struct Configuration
 	size_t now_playing_prefix_length;
 	size_t now_playing_suffix_length;
 	
-	BasicScreen *startup_screen;
-	std::list<BasicScreen *> screens_seq;
+	ScreenRef startup_screen;
+	std::list<ScreenRef> screens_seq;
 	
 	SortMode browser_sort_mode;
 	

src/song_info.cpp

@@ -32,7 +32,7 @@
 using Global::MainHeight;
 using Global::MainStartY;
 
-SongInfo *mySongInfo = new SongInfo;
+SongInfo *mySongInfo;
 
 const SongInfo::Metadata SongInfo::Tags[] =
 {
@@ -50,10 +50,9 @@ const SongInfo::Metadata SongInfo::Tags[] =
  { 0,              0,                          0                                 }
 };
 
-void SongInfo::init()
+SongInfo::SongInfo()
 {
 	w = new NC::Scrollpad(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
-	isInitialized = 1;
 }
 
 void SongInfo::resize()
@@ -79,9 +78,6 @@ void SongInfo::switchTo()
 	if (myScreen == this)
 		return myOldScreen->switchTo();
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/song_info.h

@@ -33,6 +33,8 @@ struct SongInfo : public Screen<NC::Scrollpad>
 		MPD::MutableSong::SetFunction Set;
 	};
 	
+	SongInfo();
+	
 	// Screen<NC::Scrollpad> implementation
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
@@ -51,7 +53,6 @@ struct SongInfo : public Screen<NC::Scrollpad>
 	static const Metadata Tags[];
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:

src/sort_playlist.cpp

@@ -29,9 +29,9 @@
 using Global::MainHeight;
 using Global::MainStartY;
 
-SortPlaylistDialog *mySortPlaylistDialog = new SortPlaylistDialog;
+SortPlaylistDialog *mySortPlaylistDialog;
 
-void SortPlaylistDialog::init()
+SortPlaylistDialog::SortPlaylistDialog()
 {
 	setDimensions();
 	
@@ -58,8 +58,6 @@ void SortPlaylistDialog::init()
 	w->addSeparator();
 	w->addItem(m_sort_entry);
 	w->addItem(m_cancel_entry);
-	
-	isInitialized = true;
 }
 
 void SortPlaylistDialog::switchTo()
@@ -71,9 +69,6 @@ void SortPlaylistDialog::switchTo()
 	
 	assert(myScreen != this);
 	
-	if (!isInitialized)
-		init();
-	
 	if (hasToBeResized)
 		resize();
 	

src/sort_playlist.h

@@ -26,6 +26,8 @@
 
 struct SortPlaylistDialog : public Screen< NC::Menu< std::pair<std::string, MPD::Song::GetFunction> > >
 {
+	SortPlaylistDialog();
+	
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
 	
@@ -45,8 +47,7 @@ struct SortPlaylistDialog : public Screen< NC::Menu< std::pair<std::string, MPD:
 	void moveSortOrderDown();
 	
 protected:
-	virtual void init();
-	virtual bool isLockable() { return false; }
+	virtual bool isLockable() OVERRIDE { return false; }
 	
 private:
 	void setDimensions();

src/status.cpp

@@ -175,13 +175,10 @@ void Status::Changes::playlist()
 }
 
 void Status::Changes::storedPlaylists()
-{
-	if (myPlaylistEditor->main())
 {
 	myPlaylistEditor->requestPlaylistsUpdate();
 	myPlaylistEditor->requestContentsUpdate();
-	}
-	if (myBrowser->main() && myBrowser->CurrentDir() == "/")
+	if (myBrowser->CurrentDir() == "/")
 	{
 		myBrowser->GetDirectory("/");
 		if (isVisible(myBrowser))
@@ -190,28 +187,19 @@ void Status::Changes::storedPlaylists()
 }
 
 void Status::Changes::database()
-{
-	if (myBrowser->main())
 {
 	if (isVisible(myBrowser))
 		myBrowser->GetDirectory(myBrowser->CurrentDir());
 	else
 		myBrowser->main()->clear();
-	}
 #	ifdef HAVE_TAGLIB_H
-	if (myTagEditor->main())
-	{
 	myTagEditor->Dirs->clear();
-	}
 #	endif // HAVE_TAGLIB_H
-	if (myLibrary->main())
-	{
 	if (myLibrary->Columns() == 2)
 		myLibrary->Albums->clear();
 	else
 		myLibrary->Tags->clear();
 }
-}
 
 void Status::Changes::playerState()
 {

src/tag_editor.cpp

@@ -44,7 +44,7 @@ using Global::myScreen;
 using Global::MainHeight;
 using Global::MainStartY;
 
-TagEditor *myTagEditor = new TagEditor;
+TagEditor *myTagEditor;
 
 namespace {//
 
@@ -84,7 +84,7 @@ bool SongEntryMatcher(const Regex &rx, const MPD::MutableSong &s);
 
 }
 
-void TagEditor::init()
+TagEditor::TagEditor() : FParser(0), FParserHelper(0), FParserLegend(0), FParserPreview(0), itsBrowsedDir("/")
 {
 	PatternsFile = Config.ncmpcpp_directory + "patterns.list";
 	SetDimensions(0, COLS);
@@ -142,7 +142,6 @@ void TagEditor::init()
 	FParserPreview = new NC::Scrollpad((COLS-FParserWidth)/2+FParserWidthOne, (MainHeight-FParserHeight)/2+MainStartY, FParserWidthTwo, FParserHeight, "Preview", Config.main_color, Config.window_border);
 	
 	w = Dirs;
-	isInitialized = 1;
 }
 
 void TagEditor::SetDimensions(size_t x_offset, size_t width)
@@ -200,9 +199,6 @@ void TagEditor::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/tag_editor.h

@@ -35,7 +35,7 @@
 
 struct TagEditor : public Screen<NC::Window>, public Filterable, public HasColumns, public HasSongs, public Searchable
 {
-	TagEditor() : FParser(0), FParserHelper(0), FParserLegend(0), FParserPreview(0), itsBrowsedDir("/") { }
+	TagEditor();
 	
 	virtual void resize() OVERRIDE;
 	virtual void switchTo() OVERRIDE;
@@ -87,8 +87,7 @@ struct TagEditor : public Screen<NC::Window>, public Filterable, public HasColum
 	NC::Menu<MPD::MutableSong> *Tags;
 	
 protected:
-	virtual void init();
-	virtual bool isLockable() { return true; }
+	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:
 	void SetDimensions(size_t, size_t);

src/tiny_tag_editor.cpp

@@ -43,16 +43,15 @@ using Global::MainHeight;
 using Global::MainStartY;
 using Global::myOldScreen;
 
-TinyTagEditor *myTinyTagEditor = new TinyTagEditor;
+TinyTagEditor *myTinyTagEditor;
 
-void TinyTagEditor::init()
+TinyTagEditor::TinyTagEditor()
 {
 	w = new NC::Menu<NC::Buffer>(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::brNone);
 	w->setHighlightColor(Config.main_highlight_color);
 	w->cyclicScrolling(Config.use_cyclic_scrolling);
 	w->centeredCursor(Config.centered_cursor);
 	w->setItemDisplayer(Display::Default<NC::Buffer>);
-	isInitialized = 1;
 }
 
 void TinyTagEditor::resize()
@@ -191,9 +190,6 @@ bool TinyTagEditor::getTags()
 	std::string ext = itsEdited.getURI();
 	ext = lowercase(ext.substr(ext.rfind(".")+1));
 	
-	if (!isInitialized)
-		init();
-	
 	w->clear();
 	w->reset();
 	

src/tiny_tag_editor.h

@@ -30,6 +30,8 @@
 
 struct TinyTagEditor : public Screen< NC::Menu<NC::Buffer> >
 {
+	TinyTagEditor();
+	
 	// Screen< NC::Menu<NC::Buffer> > implementation
 	virtual void resize() OVERRIDE;
 	virtual void switchTo() OVERRIDE;
@@ -49,7 +51,6 @@ struct TinyTagEditor : public Screen< NC::Menu<NC::Buffer> >
 	void SetEdited(const MPD::Song &);
 	
 protected:
-	virtual void init() OVERRIDE;
 	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:

src/visualizer.cpp

@@ -40,11 +40,11 @@
 using Global::MainStartY;
 using Global::MainHeight;
 
-Visualizer *myVisualizer = new Visualizer;
+Visualizer *myVisualizer;
 
 const int Visualizer::WindowTimeout = 1000/25; /* 25 fps */
 
-void Visualizer::init()
+Visualizer::Visualizer()
 {
 	w = new NC::Window(0, MainStartY, COLS, MainHeight, "", Config.visualizer_color, NC::brNone);
 	
@@ -59,8 +59,6 @@ void Visualizer::init()
 #	endif // HAVE_FFTW3_H
 	
 	FindOutputID();
-	
-	isInitialized = 1;
 }
 
 void Visualizer::switchTo()
@@ -71,9 +69,6 @@ void Visualizer::switchTo()
 	if (myScreen == this)
 		return;
 	
-	if (!isInitialized)
-		init();
-	
 	if (myLockedScreen)
 		updateInactiveScreen(this);
 	

src/visualizer.h

@@ -34,6 +34,8 @@
 
 struct Visualizer : public Screen<NC::Window>
 {
+	Visualizer();
+	
 	virtual void switchTo() OVERRIDE;
 	virtual void resize() OVERRIDE;
 	
@@ -57,8 +59,7 @@ struct Visualizer : public Screen<NC::Window>
 	static const int WindowTimeout;
 	
 protected:
-	virtual void init();
-	virtual bool isLockable() { return true; }
+	virtual bool isLockable() OVERRIDE { return true; }
 	
 private:
 	void DrawSoundWave(int16_t *, ssize_t, size_t, size_t);