simplify Clear() in Window and its derivatives

it removes argument responsible for immediate refreshing.
since after all calls that were refreshing screen there was
call to Refresh() anyway, this switch doesn't make much sense.

src/browser.cpp

@@ -331,7 +331,7 @@ void Browser::GetDirectory(std::string dir, std::string subdir)
 		if (w->at(i).type == itSong)
 			delete w->at(i).song;
 	
-	w->Clear(0);
+	w->Clear();
 	
 	if (dir != "/")
 	{

src/info.cpp

@@ -125,7 +125,7 @@ void Info::GetSong()
 		myScreen = this;
 		RedrawHeader = 1;
 		itsTitle = "Song info";
-		w->Clear(0);
+		w->Clear();
 		PrepareSong(*s);
 		w->Window::Clear();
 		w->Flush();

src/media_library.cpp

@@ -123,10 +123,10 @@ void MediaLibrary::SwitchTo()
 	{
 		hasTwoColumns = !hasTwoColumns;
 		hasToBeResized = 1;
-		Artists->Clear(0);
-		Albums->Clear(0);
+		Artists->Clear();
+		Albums->Clear();
 		Albums->Reset();
-		Songs->Clear(0);
+		Songs->Clear();
 		if (hasTwoColumns)
 		{
 			if (w == Artists)
@@ -161,8 +161,8 @@ void MediaLibrary::Update()
 	if (!hasTwoColumns && Artists->Empty())
 	{
 		TagList list;
-		Albums->Clear(0);
-		Songs->Clear(0);
+		Albums->Clear();
+		Songs->Clear();
 		Mpd.GetList(list, Config.media_lib_primary_tag);
 		sort(list.begin(), list.end(), CaseInsensitiveSorting());
 		for (TagList::iterator it = list.begin(); it != list.end(); ++it)
@@ -280,7 +280,7 @@ void MediaLibrary::Update()
 		Songs->Reset();
 		SongList list;
 		
-		Songs->Clear(0);
+		Songs->Clear();
 		Mpd.StartSearch(1);
 		Mpd.AddSearch(Config.media_lib_primary_tag, hasTwoColumns ? Albums->Current().second.Artist : locale_to_utf_cpy(Artists->Current()));
 		if (Albums->Empty()) // left for compatibility with <mpd-0.14
@@ -351,8 +351,8 @@ void MediaLibrary::MouseButtonPressed(MEVENT me)
 		}
 		else
 			Screen<Window>::MouseButtonPressed(me);
-		Albums->Clear(0);
-		Songs->Clear(0);
+		Albums->Clear();
+		Songs->Clear();
 	}
 	else if (!Albums->Empty() && Albums->hasCoords(me.x, me.y))
 	{
@@ -371,7 +371,7 @@ void MediaLibrary::MouseButtonPressed(MEVENT me)
 		}
 		else
 			Screen<Window>::MouseButtonPressed(me);
-		Songs->Clear(0);
+		Songs->Clear();
 	}
 	else if (!Songs->Empty() && Songs->hasCoords(me.x, me.y))
 	{
@@ -507,11 +507,11 @@ void MediaLibrary::AddToPlaylist(bool add_n_play)
 		w->Scroll(wDown);
 		if (w == Artists)
 		{
-			Albums->Clear(0);
-			Songs->Clear(0);
+			Albums->Clear();
+			Songs->Clear();
 		}
 		else if (w == Albums)
-			Songs->Clear(0);
+			Songs->Clear();
 	}
 }
 

src/menu.h

@@ -390,11 +390,9 @@ namespace NCurses
 			virtual void Scroll(Where where);
 			
 			/// Cleares all options, used filters etc. It doesn't reset highlighted position though.
-			/// @param clear_screen indicates whether window has to be cleared imediately or not
-			/// @see Window::Clear()
 			/// @see Reset()
 			///
-			virtual void Clear(bool clear_screen = 1);
+			virtual void Clear();
 			
 			/// Sets the highlighted position to 0
 			///
@@ -888,7 +886,7 @@ template <typename T> void NCurses::Menu<T>::ClearFiltered()
 	itsOptionsPtr = &itsOptions;
 }
 
-template <typename T> void NCurses::Menu<T>::Clear(bool clear_screen)
+template <typename T> void NCurses::Menu<T>::Clear()
 {
 	for (option_iterator it = itsOptions.begin(); it != itsOptions.end(); ++it)
 		delete *it;
@@ -897,8 +895,7 @@ template <typename T> void NCurses::Menu<T>::Clear(bool clear_screen)
 	itsFilter.clear();
 	ClearFiltered();
 	itsOptionsPtr = &itsOptions;
-	if (clear_screen)
-		Window::Clear();
+	Window::Clear();
 }
 
 template <typename T> bool NCurses::Menu<T>::isBold(int pos)

src/misc.cpp

@@ -161,7 +161,7 @@ void SelectedItemsAdder::EnterPressed()
 		if (myBrowser->Main() && !myBrowser->isLocal() && myBrowser->CurrentDir() == "/")
 			myBrowser->GetDirectory("/");
 		if (myPlaylistEditor->Main())
-			myPlaylistEditor->Playlists->Clear(0); // make playlist editor update itself
+			myPlaylistEditor->Playlists->Clear(); // make playlist editor update itself
 	}
 	MPD::FreeSongList(list);
 	SwitchTo();

src/ncmpcpp.cpp

@@ -437,21 +437,21 @@ int main(int argc, char *argv[])
 			{
 				if (myScreen->ActiveWindow() == myLibrary->Artists)
 				{
-					myLibrary->Albums->Clear(0);
-					myLibrary->Songs->Clear(0);
+					myLibrary->Albums->Clear();
+					myLibrary->Songs->Clear();
 				}
 				else if (myScreen->ActiveWindow() == myLibrary->Albums)
 				{
-					myLibrary->Songs->Clear(0);
+					myLibrary->Songs->Clear();
 				}
 				else if (myScreen->ActiveWindow() == myPlaylistEditor->Playlists)
 				{
-					myPlaylistEditor->Content->Clear(0);
+					myPlaylistEditor->Content->Clear();
 				}
 #				ifdef HAVE_TAGLIB_H
 				else if (myScreen->ActiveWindow() == myTagEditor->LeftColumn)
 				{
-					myTagEditor->Tags->Clear(0);
+					myTagEditor->Tags->Clear();
 					myTagEditor->TagTypes->Refresh();
 				}
 #				endif // HAVE_TAGLIB_H
@@ -660,7 +660,7 @@ int main(int argc, char *argv[])
 				else
 					ShowMessage("Aborted!");
 				if (myPlaylistEditor->Main()) // check if initialized
-					myPlaylistEditor->Playlists->Clear(0); // make playlists list update itself
+					myPlaylistEditor->Playlists->Clear(); // make playlists list update itself
 			}
 #			ifndef WIN32
 			else if (myScreen == myBrowser && !myBrowser->Main()->Empty() && myBrowser->Main()->Current().type != itPlaylist)
@@ -802,7 +802,7 @@ int main(int argc, char *argv[])
 				{
 					ShowMessage("Playlist saved as: %s", playlist_name.c_str());
 					if (myPlaylistEditor->Main()) // check if initialized
-						myPlaylistEditor->Playlists->Clear(0); // make playlist's list update itself
+						myPlaylistEditor->Playlists->Clear(); // make playlist's list update itself
 				}
 				else
 				{
@@ -826,7 +826,7 @@ int main(int argc, char *argv[])
 					else
 						ShowMessage("Aborted!");
 					if (myPlaylistEditor->Main()) // check if initialized
-						myPlaylistEditor->Playlists->Clear(0); // make playlist's list update itself
+						myPlaylistEditor->Playlists->Clear(); // make playlist's list update itself
 					if (myScreen == myPlaylist)
 						myPlaylist->EnableHighlighting();
 				}
@@ -1156,7 +1156,7 @@ int main(int argc, char *argv[])
 				if (myScreen == myPlaylistEditor)
 				{
 					Mpd.AddToPlaylist(myPlaylistEditor->Playlists->Current(), path);
-					myPlaylistEditor->Content->Clear(0); // make it refetch content of playlist
+					myPlaylistEditor->Content->Clear(); // make it refetch content of playlist
 				}
 				else
 					Mpd.Add(path);
@@ -1561,7 +1561,7 @@ int main(int argc, char *argv[])
 						if (myBrowser->Main() && !myBrowser->isLocal())
 							myBrowser->GetDirectory("/");
 						if (myPlaylistEditor->Main())
-							myPlaylistEditor->Playlists->Clear(0);
+							myPlaylistEditor->Playlists->Clear();
 					}
 				}
 			}
@@ -1722,7 +1722,7 @@ int main(int argc, char *argv[])
 				if (myScreen->ActiveWindow() == myPlaylistEditor->Content)
 				{
 					Mpd.ClearPlaylist(locale_to_utf_cpy(myPlaylistEditor->Playlists->Current()));
-					myPlaylistEditor->Content->Clear(0);
+					myPlaylistEditor->Content->Clear();
 				}
 				else
 				{
@@ -1901,7 +1901,7 @@ int main(int argc, char *argv[])
 					ToLower(item_type);
 					if (myLibrary->Columns() == 2)
 					{
-						myLibrary->Songs->Clear(0);
+						myLibrary->Songs->Clear();
 						myLibrary->Albums->Reset();
 						myLibrary->Albums->Clear();
 						myLibrary->Albums->SetTitle("Albums (sorted by " + item_type + ")");
@@ -1909,7 +1909,7 @@ int main(int argc, char *argv[])
 					}
 					else
 					{
-						myLibrary->Artists->Clear(0);
+						myLibrary->Artists->Clear();
 						myLibrary->Artists->Display();
 					}
 					ShowMessage("Switched to list of %s tag", item_type.c_str());

src/outputs.cpp

@@ -103,7 +103,7 @@ void Outputs::FetchList()
 		return;
 	MPD::OutputList ol;
 	Mpd.GetOutputs(ol);
-	w->Clear(0);
+	w->Clear();
 	for (MPD::OutputList::const_iterator it = ol.begin(); it != ol.end(); ++it)
 		w->AddOption(*it, it->second);
 	if (myScreen == this)

src/playlist_editor.cpp

@@ -112,7 +112,7 @@ void PlaylistEditor::Update()
 {
 	if (Playlists->Empty())
 	{
-		Content->Clear(0);
+		Content->Clear();
 		TagList list;
 		Mpd.GetPlaylists(list);
 		sort(list.begin(), list.end(), CaseInsensitiveSorting());
@@ -237,7 +237,7 @@ void PlaylistEditor::MouseButtonPressed(MEVENT me)
 		}
 		else
 			Screen<Window>::MouseButtonPressed(me);
-		Content->Clear(0);
+		Content->Clear();
 	}
 	else if (!Content->Empty() && Content->hasCoords(me.x, me.y))
 	{

src/scrollpad.cpp

@@ -181,7 +181,7 @@ void Scrollpad::Scroll(Where where)
 	}
 }
 
-void Scrollpad::Clear(bool clear_screen)
+void Scrollpad::Clear()
 {
 	itsRealHeight = itsHeight;
 	itsBuffer.Clear();
@@ -192,8 +192,6 @@ void Scrollpad::Clear(bool clear_screen)
 	SetColor(itsColor, itsBgColor);
 	ForgetFormatting();
 	keypad(itsWindow, 1);
-	if (clear_screen)
-		Refresh();
 }
 
 void Scrollpad::Reset()

src/scrollpad.h

@@ -102,10 +102,9 @@ namespace NCurses
 			virtual void Resize(size_t new_width, size_t new_height);
 			
 			/// Cleares the content of scrollpad
-			/// @param clear_screen indicates whether window has to be cleared imediately or not
 			/// @see Window::Clear()
 			///
-			virtual void Clear(bool clear_screen = 1);
+			virtual void Clear();
 			
 			/// Sets starting position to the beginning
 			///

src/search_engine.cpp

@@ -268,7 +268,7 @@ void SearchEngine::Prepare()
 	}
 	
 	w->SetTitle("");
-	w->Clear(0);
+	w->Clear();
 	w->ResizeList(17);
 	
 	w->IntoSeparator(10);

src/server_info.cpp

@@ -96,7 +96,7 @@ void ServerInfo::Update()
 	time(&now);
 	
 	Mpd.UpdateStats();
-	w->Clear(0);
+	w->Clear();
 	
 	*w << fmtBold << U("Version: ") << fmtBoldEnd << U("0.") << std::fixed << std::setprecision(1) << Mpd.Version() << '\n';
 	*w << fmtBold << U("Uptime: ") << fmtBoldEnd;

src/status.cpp

@@ -249,7 +249,7 @@ void NcmpcppStatusChanged(Connection *, StatusChanges changed, void *)
 		if (myPlaylist->Items->Empty())
 		{
 			myPlaylist->Items->Reset();
-			myPlaylist->Items->Window::Clear(0);
+			myPlaylist->Items->Window::Clear();
 			ShowMessage("Cleared playlist!");
 		}
 		
@@ -280,13 +280,13 @@ void NcmpcppStatusChanged(Connection *, StatusChanges changed, void *)
 			if (myScreen == myBrowser)
 				myBrowser->GetDirectory(myBrowser->CurrentDir());
 			else
-				myBrowser->Main()->Clear(0);
+				myBrowser->Main()->Clear();
 		}
 #		ifdef HAVE_TAGLIB_H
 		if (myTagEditor->Main())
 		{
-			myTagEditor->Albums->Clear(0);
-			myTagEditor->Dirs->Clear(0);
+			myTagEditor->Albums->Clear();
+			myTagEditor->Dirs->Clear();
 		}
 #		endif // HAVE_TAGLIB_H
 		if (myLibrary->Main())
@@ -294,13 +294,13 @@ void NcmpcppStatusChanged(Connection *, StatusChanges changed, void *)
 			if (myLibrary->Columns() == 2)
 			{
 				myLibrary->Albums->Clear();
-				myLibrary->Songs->Clear(0);
+				myLibrary->Songs->Clear();
 			}
 			else
-				myLibrary->Artists->Clear(0);
+				myLibrary->Artists->Clear();
 		}
 		if (myPlaylistEditor->Main())
-			myPlaylistEditor->Content->Clear(0);
+			myPlaylistEditor->Content->Clear();
 	}
 	if (changed.PlayerState)
 	{

src/tag_editor.cpp

@@ -323,7 +323,7 @@ void TagEditor::EnterPressed()
 		{
 			itsHighlightedDir = itsBrowsedDir;
 			itsBrowsedDir = LeftColumn->Current().second;
-			LeftColumn->Clear(0);
+			LeftColumn->Clear();
 			LeftColumn->Reset();
 		}
 		else
@@ -600,7 +600,7 @@ void TagEditor::EnterPressed()
 		}
 		case 11: // reset
 		{
-			Tags->Clear(0);
+			Tags->Clear();
 			ShowMessage("Changes reset");
 			return;
 		}
@@ -630,7 +630,7 @@ void TagEditor::EnterPressed()
 				Mpd.UpdateDirectory(locale_to_utf_cpy(FindSharedDir(Tags)));
 			}
 			else
-				Tags->Clear(0);
+				Tags->Clear();
 			return;
 		}
 		case 13: // capitalize first letters
@@ -689,7 +689,7 @@ void TagEditor::SpacePressed()
 	w = LeftColumn = Config.albums_in_tag_editor ? Albums : Dirs;
 	ShowMessage("Switched to %s view", Config.albums_in_tag_editor ? "albums" : "directories");
 	LeftColumn->Display();
-	Tags->Clear(0);
+	Tags->Clear();
 }
 
 void TagEditor::MouseButtonPressed(MEVENT me)
@@ -747,7 +747,7 @@ void TagEditor::MouseButtonPressed(MEVENT me)
 		}
 		else
 			Screen<Window>::MouseButtonPressed(me);
-		Tags->Clear(0);
+		Tags->Clear();
 	}
 	else if (!TagTypes->Empty() && TagTypes->hasCoords(me.x, me.y))
 	{

src/visualizer.cpp

@@ -120,7 +120,7 @@ void Visualizer::Update()
 	if (data < 0) // no data available in fifo
 		return;
 	
-	w->Clear(0);
+	w->Clear();
 #	ifdef HAVE_FFTW3_H
 	Config.visualizer_use_wave ? DrawSoundWave(buf, data) : DrawFrequencySpectrum(buf, data);
 #	else

src/window.cpp

@@ -318,11 +318,9 @@ void Window::Refresh()
 	prefresh(itsWindow, 0, 0, itsStartY, itsStartX, itsStartY+itsHeight-1, itsStartX+itsWidth-1);
 }
 
-void Window::Clear(bool refresh)
+void Window::Clear()
 {
 	werase(itsWindow);
-	if (refresh)
-		Window::Refresh();
 }
 
 void Window::Hide(char ch) const

src/window.h

@@ -343,9 +343,8 @@ namespace NCurses
 			virtual void Resize(size_t new_width, size_t new_height);
 			
 			/// Cleares the window
-			/// @param refresh indicates whether window has to be refreshed immediately or not
 			///
-			virtual void Clear(bool refresh = 1);
+			virtual void Clear();
 			
 			/// Adds given file descriptor to the list that will be polled in
 			/// ReadKey() along with stdin and callback that will be invoked