revert change that disallowed reloading of fonts via F2

src/Font.cpp

@@ -728,7 +728,6 @@ void Font::Load( const RString &sIniPath, RString sChars )
 			Font subfont;
 			subfont.Load(fPath,"");
 			MergeFont(subfont);
-			//FONT->UnloadFont(subfont);
 		}
 	}
 

src/FontManager.cpp

@@ -22,7 +22,7 @@ FontManager::~FontManager()
 	{
 		const FontName &fn = i->first;
 		Font* pFont = i->second;
-		if(pFont->m_iRefCount>0) {
+		if(pFont->m_iRefCount > 0) {
 			LOG->Trace( "FONT LEAK: '%s', RefCount = %d.", fn.first.c_str(), pFont->m_iRefCount );
 		}
 		delete pFont;
@@ -53,14 +53,13 @@ Font* FontManager::LoadFont( const RString &sFontOrTextureFilePath, RString sCha
 	{
 		pFont=p->second;
 		pFont->m_iRefCount++;
-	}
+		return pFont;
-	else {
-		pFont= new Font;
-		pFont->Load(sFontOrTextureFilePath, sChars);
-		g_mapPathToFont[NewName] = pFont;
 	}
 
-	return pFont;
+	Font *f = new Font;
+	f->Load(sFontOrTextureFilePath, sChars);
+	g_mapPathToFont[NewName] = f;
+	return f;
 }
 
 Font *FontManager::CopyFont( Font *pFont )
@@ -79,16 +78,22 @@ void FontManager::UnloadFont( Font *fp )
 		if(i->second != fp)
 			continue;
 
-		ASSERT_M(fp->m_iRefCount>0,"Attempting to unload a font with zero ref count!");
+		ASSERT_M(fp->m_iRefCount > 0,"Attempting to unload a font with zero ref count!");
 
 		i->second->m_iRefCount--;
 
+		if( fp->m_iRefCount == 0 )
+		{
+			delete i->second;		// free the texture
+			g_mapPathToFont.erase( i );	// and remove the key in the map
+		}
 		return;
 	}
 
 	FAIL_M( ssprintf("Unloaded an unknown font (%p)", fp) );
 }
 
+/*
 void FontManager::PruneFonts() {
 	for( std::map<FontName, Font*>::iterator i = g_mapPathToFont.begin();i != g_mapPathToFont.end();) {
 		Font *fp=i->second;
@@ -101,6 +106,7 @@ void FontManager::PruneFonts() {
 		}
 	}
 }
+*/
 
 /*
  * (c) 2001-2003 Chris Danford, Glenn Maynard

src/FontManager.h

@@ -15,7 +15,7 @@ public:
 	Font* LoadFont( const RString &sFontOrTextureFilePath, RString sChars = "" );
 	Font *CopyFont( Font *pFont );
 	void UnloadFont( Font *fp );
-	void PruneFonts();
+	//void PruneFonts();
 
 	/* Warning: This reloads fonts completely, so all BitmapTexts need to be
 	 * reset, too.  If this isn't done, best case they end up with old font

src/ScreenManager.cpp

@@ -76,7 +76,7 @@
 ScreenManager*	SCREENMAN = NULL;	// global and accessable from anywhere in our program
 
 static Preference<bool> g_bDelayedScreenLoad( "DelayedScreenLoad", false );
-static Preference<bool> g_bPruneFonts( "PruneFonts", true );
+//static Preference<bool> g_bPruneFonts( "PruneFonts", true );
 
 // Screen registration
 static map<RString,CreateScreenFn>	*g_pmapRegistrees = NULL;
@@ -592,9 +592,11 @@ void ScreenManager::PrepareScreen( const RString &sScreenName )
 	}
 
 	// Prune any unused fonts now that we have had a chance to reference the fonts
+	/*
 	if(g_bPruneFonts) {
 		FONT->PruneFonts();
 	}
+	*/
 
 	TEXTUREMAN->DiagnosticOutput();
 }
@@ -690,17 +692,19 @@ void ScreenManager::LoadDelayedScreen()
 	 * cleanup, so it doesn't get deleted by cleanup. */
 	bool bLoaded = ActivatePreparedScreenAndBackground( sScreenName );
 
-	bool deletePrepared=g_setGroupedScreens.find(sScreenName) == g_setGroupedScreens.end();
+	vector<Actor*> apActorsToDelete;
-	
+	if( g_setGroupedScreens.find(sScreenName) == g_setGroupedScreens.end() )
-	/* It's time to delete all old prepared screens. Depending on DelayedScreenLoad,
+	{
-	 * we can either delete the screens before or after we load the new screen.
+		/* It's time to delete all old prepared screens. Depending on
-	 * Either way, we must remove them from the prepared list before we prepare
+		 * DelayedScreenLoad, we can either delete the screens before or after
-	 * new screens. 
+		 * we load the new screen. Either way, we must remove them from the
+		 * prepared list before we prepare new screens. 
 		 * If DelayedScreenLoad is true, delete them now; this lowers memory
 		 * requirements, but results in redundant loads as we unload common data. */
-	if( deletePrepared && g_bDelayedScreenLoad ) {
+		if( g_bDelayedScreenLoad )
 			DeletePreparedScreens();
-		deletePrepared=false;
+		else
+			GrabPreparedActors( apActorsToDelete );
 	}
 
 	// If the screen wasn't already prepared, load it.
@@ -717,9 +721,12 @@ void ScreenManager::LoadDelayedScreen()
 		ASSERT( bLoaded );
 	}
 
-	if( deletePrepared )
+	if( !apActorsToDelete.empty() )
 	{
-		DeletePreparedScreens();
+		BeforeDeleteScreen();
+		FOREACH( Actor*, apActorsToDelete, a )
+			SAFE_DELETE( *a );
+		AfterDeleteScreen();
 	}
 
 	MESSAGEMAN->Broadcast( Message_ScreenChanged );