allow theme to specify logical screen dimensions

stepmania/Themes/default/metrics.ini

@@ -22,6 +22,8 @@ DefaultCpuModifiers=
 JoinPauseSeconds=0.8
 DifficultiesToShow=beginner,easy,medium,hard,challenge
 CourseDifficultiesToShow=easy,regular,difficult
+ScreenWidth=640
+ScreenHeight=480
 
 [ModeSwitcher]
 PrevModeX=-200

stepmania/src/ActorCollision.h

@@ -3,6 +3,7 @@
 
 #include "Actor.h"
 #include "GameConstantsAndTypes.h"
+#include "ScreenDimensions.h"
 
 
 inline float GetOffScreenLeft(  Actor* pActor ) { return SCREEN_LEFT  - pActor->GetZoomedWidth()/2; }

stepmania/src/ArrowEffects.cpp

@@ -9,6 +9,7 @@
 #include "NoteDisplay.h"
 #include "song.h"
 #include "RageMath.h"
+#include "ScreenDimensions.h"
 
 const float ARROW_SPACING	= ARROW_SIZE;// + 2;
 

stepmania/src/BGAnimationLayer.cpp

@@ -27,7 +27,7 @@ const float SPIRAL_MIN_ZOOM = 0.3f;
 #define MAX_TILES_HIGH (SCREEN_HEIGHT/32+2)
 #define MAX_SPRITES (MAX_TILES_WIDE*MAX_TILES_HIGH)
 
-static const RectI FullScreenRectI(SCREEN_LEFT,SCREEN_TOP,SCREEN_RIGHT,SCREEN_BOTTOM);
+#define FullScreenRectI RectI(SCREEN_LEFT,SCREEN_TOP,SCREEN_RIGHT,SCREEN_BOTTOM)
 
 
 BGAnimationLayer::BGAnimationLayer( bool Generic )

stepmania/src/Background.cpp

@@ -15,6 +15,7 @@
 #include "arch/arch.h"
 #include "BeginnerHelper.h"
 #include "StageStats.h"
+#include "ScreenDimensions.h"
 
 #include <set>
 

stepmania/src/BeginnerHelper.cpp

@@ -10,6 +10,7 @@
 #include "Steps.h"
 #include "Style.h"
 #include "Model.h"
+#include "ScreenDimensions.h"
 
 // "PLAYER_X" offsets are relative to the pad.. ex: Setting this to 10, and the HELPER to 300, will put the dancer at 310
 #define PLAYER_X( px )		THEME->GetMetricF("BeginnerHelper",ssprintf("Player%d_X",px+1))

stepmania/src/GameConstantsAndTypes.h

@@ -7,25 +7,6 @@
 #include "Difficulty.h"		// TODO: Get rid of this dependency.
 #include "EnumHelper.h"
 
-//
-// Screen Dimensions
-//
-#define	SCREEN_WIDTH	(640)
-#define	SCREEN_HEIGHT	(480)
-
-#define	SCREEN_LEFT		(0)
-#define	SCREEN_RIGHT	(SCREEN_WIDTH)
-#define	SCREEN_TOP		(0)
-#define	SCREEN_BOTTOM	(SCREEN_HEIGHT)
-
-#define	CENTER_X		(SCREEN_LEFT + (SCREEN_RIGHT - SCREEN_LEFT)/2.0f)
-#define	CENTER_Y		(SCREEN_TOP + (SCREEN_BOTTOM - SCREEN_TOP)/2.0f)
-
-#define	SCREEN_NEAR		(-1000)
-#define	SCREEN_FAR		(1000)
-
-#define	ARROW_SIZE		(64)
-
 
 //
 // Note definitions

stepmania/src/LyricDisplay.cpp

@@ -1,5 +1,6 @@
 #include "global.h"
 #include "LyricDisplay.h"
+#include "ScreenDimensions.h"
 
 #include "GameState.h"
 #include "ThemeManager.h"

stepmania/src/NoteField.cpp

@@ -14,6 +14,7 @@
 #include "NoteFieldPositioning.h"
 #include "NoteSkinManager.h"
 #include "song.h"
+#include "ScreenDimensions.h"
 
 NoteField::NoteField()
 {	

stepmania/src/NoteFieldPositioning.cpp

@@ -10,6 +10,7 @@
 #include "GameManager.h"
 #include "IniFile.h"
 #include "Game.h"
+#include "ScreenDimensions.h"
 
 /* Copies of the current mode.  Update this by calling Load. */
 NoteFieldMode g_NoteFieldMode[NUM_PLAYERS];

stepmania/src/Player.cpp

@@ -27,6 +27,7 @@
 #include "Game.h"
 #include "NetworkSyncManager.h"	//used for sending timing offset
 #include "DancingCharacters.h"
+#include "ScreenDimensions.h"
 
 CachedThemeMetricF GRAY_ARROWS_Y_STANDARD		("Player","ReceptorArrowsYStandard");
 CachedThemeMetricF GRAY_ARROWS_Y_REVERSE		("Player","ReceptorArrowsYReverse");

stepmania/src/Preference.h

@@ -49,7 +49,7 @@ public:
 		m_defaultValue( defaultValue ),
 		m_currentValue( defaultValue )
 	{
-		Subscribe( this );
+		PrefsManager::Subscribe( this );
 	}
 
 	void LoadDefault()

stepmania/src/PrefsManager.cpp

@@ -25,9 +25,9 @@ const CString DEFAULT_LIGHTS_DRIVER = "Null";
 //
 // For self-registering prefs
 //
-vector<IPreference*> *g_pvpSubscribers = NULL;
+static vector<IPreference*> *g_pvpSubscribers = NULL;
 
-void Subscribe( IPreference *p )
+void PrefsManager::Subscribe( IPreference *p )
 {
 	// TRICKY: If we make this a global vector instead of a global pointer,
 	// then we'd have to be careful that the static constructors of all

stepmania/src/PrefsManager.h

@@ -281,16 +281,17 @@ public:
 
 	void ResetToFactoryDefaults();
 
+	//
+	// For self-registering prefs
+	//
+	static void Subscribe( IPreference *p );
+
 protected:
 	void ReadPrefsFromFile( CString sIni );
 
 };
 
 
-//
-// For self-registering prefs
-//
-void Subscribe( IPreference *p );
 
 
 /* This is global, because it can be accessed by crash handlers and error handlers

stepmania/src/RageDisplay.cpp

@@ -11,6 +11,7 @@
 #include "SDL_rotozoom.h"
 #include "RageSurface.h"
 #include "Preference.h"
+#include "ScreenDimensions.h"
 
 //
 // Statistics stuff

stepmania/src/RageDisplay_D3D.cpp

@@ -21,6 +21,7 @@
 #include "PrefsManager.h"
 #include "RageSurface.h"
 #include "RageSurfaceUtils.h"
+#include "ScreenDimensions.h"
 
 #include "arch/arch.h"
 

stepmania/src/RageDisplay_OGL.cpp

@@ -22,6 +22,7 @@
 #include "RageSurface.h"
 #include "RageSurfaceUtils.h"
 #include "PrefsManager.h" // XXX
+#include "ScreenDimensions.h" // XXX
 
 /* Windows's broken gl.h defines GL_EXT_paletted_texture incompletely: */
 #ifndef GL_TEXTURE_INDEX_SIZE_EXT

stepmania/src/ScreenBookkeeping.cpp

@@ -12,6 +12,7 @@
 #include "ThemeManager.h"
 #include "RageDisplay.h"
 #include "Bookkeeper.h"
+#include "ScreenDimensions.h"
 
 
 ScreenBookkeeping::ScreenBookkeeping( CString sClassName ) : ScreenWithMenuElements( sClassName )

stepmania/src/ScreenCenterImage.cpp

@@ -11,6 +11,7 @@
 #include "ThemeManager.h"
 #include "RageDisplay.h"
 #include "HelpDisplay.h"
+#include "ScreenDimensions.h"
 
 ScreenCenterImage::ScreenCenterImage( CString sClassName ) : ScreenWithMenuElements( sClassName )
 {

stepmania/src/ScreenDimensions.cpp

@@ -0,0 +1,32 @@
+#include "global.h"
+#include "ScreenDimensions.h"
+
+ThemeMetric<float> SCREEN_WIDTH("Common","ScreenWidth");
+ThemeMetric<float> SCREEN_HEIGHT("Common","ScreenHeight");
+
+
+
+/*
+ * (c) 2001-2002 Chris Danford
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */

stepmania/src/ScreenDimensions.h

@@ -1,9 +1,12 @@
+/* ScoreKeeperMAX2 - MAX2-style scorekeeping. */
+
 #ifndef SCREEN_DIMENSIONS_H
 #define SCREEN_DIMENSIONS_H
 
+#include "ThemeMetric.h"
 
-#define		SCREEN_WIDTH	(640)
-#define		SCREEN_HEIGHT	(480)
+extern ThemeMetric<float> SCREEN_WIDTH;
+extern ThemeMetric<float> SCREEN_HEIGHT;
 
 #define		SCREEN_LEFT		(0)
 #define		SCREEN_RIGHT	(SCREEN_WIDTH)
@@ -13,6 +16,10 @@
 #define		CENTER_X		(SCREEN_LEFT + (SCREEN_RIGHT - SCREEN_LEFT)/2.0f)
 #define		CENTER_Y		(SCREEN_TOP + (SCREEN_BOTTOM - SCREEN_TOP)/2.0f)
 
+#define	SCREEN_NEAR		(-1000)
+#define	SCREEN_FAR		(1000)
+
+#define	ARROW_SIZE		(64)
 
 #endif
 

stepmania/src/ScreenEdit.cpp

@@ -23,6 +23,7 @@
 #include "SongUtil.h"
 #include "StepsUtil.h"
 #include "Foreach.h"
+#include "ScreenDimensions.h"
 
 
 const float RECORD_HOLD_SECONDS = 0.3f;

stepmania/src/ScreenEndlessBreak.cpp

@@ -2,6 +2,7 @@
 #include "RageLog.h"
 #include "ScreenManager.h"
 #include "ScreenEndlessBreak.h"
+#include "ScreenDimensions.h"
 
 //TODO:: Add scripting support
 

stepmania/src/ScreenEz2SelectMusic.cpp

@@ -16,6 +16,7 @@
 #include "AnnouncerManager.h"
 #include "MenuTimer.h"
 #include "StepsUtil.h"
+#include "ScreenDimensions.h"
 
 #define SCROLLING_LIST_X		THEME->GetMetricF("ScreenEz2SelectMusic","ScrollingListX")
 #define SCROLLING_LIST_Y		THEME->GetMetricF("ScreenEz2SelectMusic","ScrollingListY")

stepmania/src/ScreenEz2SelectPlayer.cpp

@@ -13,6 +13,7 @@
 #include "RageTimer.h"
 #include "ThemeManager.h"
 #include "MenuTimer.h"
+#include "ScreenDimensions.h"
 
 /* Constants */
 

stepmania/src/ScreenGameplay.cpp

@@ -40,6 +40,7 @@
 #include "NetworkSyncManager.h"
 #include "Foreach.h"
 #include "DancingCharacters.h"
+#include "ScreenDimensions.h"
 
 //
 // Defines

stepmania/src/ScreenInstructions.cpp

@@ -8,6 +8,7 @@
 #include "GameState.h"
 #include "ThemeManager.h"
 #include "PrefsManager.h"
+#include "ScreenDimensions.h"
 
 
 ScreenInstructions::ScreenInstructions( CString sName ) : ScreenWithMenuElements( sName )

stepmania/src/ScreenMapControllers.cpp

@@ -13,6 +13,7 @@
 #include "RageDisplay.h"
 #include "Game.h"
 #include "HelpDisplay.h"
+#include "ScreenDimensions.h"
 
 
 #define EVEN_LINE_IN		THEME->GetMetric("ScreenMapControllers","EvenLineIn")

stepmania/src/ScreenMiniMenu.cpp

@@ -7,6 +7,7 @@
 #include "PrefsManager.h"
 #include "ThemeManager.h"
 #include "Foreach.h"
+#include "ScreenDimensions.h"
 
 
 const float LABEL_X		=	200;

stepmania/src/ScreenMusicScroll.cpp

@@ -6,6 +6,7 @@
 #include "AnnouncerManager.h"
 #include "song.h"
 #include "SongUtil.h"
+#include "ScreenDimensions.h"
 
 
 #define SCROLL_DELAY		THEME->GetMetricF("ScreenMusicScroll","ScrollDelay")

stepmania/src/ScreenNameEntry.cpp

@@ -17,6 +17,7 @@
 #include "NoteFieldPositioning.h"
 #include "StageStats.h"
 #include "Game.h"
+#include "ScreenDimensions.h"
 
 
 //

stepmania/src/ScreenNameEntryTraditional.cpp

@@ -22,6 +22,7 @@
 #include "RageDisplay.h"
 #include "Foreach.h"
 #include "Style.h"
+#include "ScreenDimensions.h"
 
 
 //

stepmania/src/ScreenOptions.cpp

@@ -13,6 +13,7 @@
 #include "song.h"
 #include "Course.h"
 #include "Style.h"
+#include "ScreenDimensions.h"
 
 const float ITEM_X[NUM_PLAYERS] = { 260, 420 };
 

stepmania/src/ScreenPlayerOptions.cpp

@@ -9,6 +9,7 @@
 #include "ScreenSongOptions.h"
 #include "PrefsManager.h"
 #include "CodeDetector.h"
+#include "ScreenDimensions.h"
 
 
 #define PREV_SCREEN		THEME->GetMetric ("ScreenPlayerOptions","PrevScreen")

stepmania/src/ScreenPrompt.cpp

@@ -6,12 +6,13 @@
 #include "GameConstantsAndTypes.h"
 #include "PrefsManager.h"
 #include "ThemeManager.h"
+#include "ScreenDimensions.h"
 
-const float QUESTION_X	=	CENTER_X;
-const float QUESTION_Y	=	CENTER_Y - 60;
+#define QUESTION_X	(CENTER_X)
+#define QUESTION_Y	(CENTER_Y - 60)
 
-const float PROMPT_X	=	CENTER_X;
-const float PROMPT_Y	=	CENTER_Y + 120;
+#define PROMPT_X	(CENTER_X)
+#define PROMPT_Y	(CENTER_Y + 120)
 
 bool ScreenPrompt::s_bLastAnswer = false;
 

stepmania/src/ScreenRanking.cpp

@@ -12,6 +12,7 @@
 #include "ProfileManager.h"
 #include "RageLog.h"
 #include "UnlockSystem.h"
+#include "ScreenDimensions.h"
 
 static const CString PageTypeNames[NUM_PAGE_TYPES] = {
 	"Category",

stepmania/src/ScreenReloadSongs.cpp

@@ -6,6 +6,7 @@
 #include "RageTimer.h"
 #include "RageLog.h"
 #include "ThemeManager.h"
+#include "ScreenDimensions.h"
 
 #include "arch/LoadingWindow/LoadingWindow.h"
 

stepmania/src/ScreenSelectDifficulty.cpp

@@ -9,6 +9,7 @@
 #include "AnnouncerManager.h"
 #include "ModeChoice.h"
 #include "ActorUtil.h"
+#include "ScreenDimensions.h"
 
 #define NUM_CHOICES_ON_PAGE_1				THEME->GetMetricI(m_sName,"NumChoicesOnPage1")
 #define LOCK_INPUT_SECONDS					THEME->GetMetricF(m_sName,"LockInputSeconds")

stepmania/src/ScreenTestFonts.cpp

@@ -4,6 +4,7 @@
 #include "RageTextureManager.h"
 #include "ScreenManager.h"
 #include "GameConstantsAndTypes.h"
+#include "ScreenDimensions.h"
 
 
 static const float LineWidth = 400;

stepmania/src/ScreenTestInput.cpp

@@ -12,6 +12,7 @@
 #include "ThemeManager.h"
 #include "RageDisplay.h"
 #include "Game.h"
+#include "ScreenDimensions.h"
 
 
 ScreenTestInput::ScreenTestInput( CString sClassName ) : ScreenWithMenuElements( sClassName )

stepmania/src/ScreenTestLights.cpp

@@ -13,6 +13,7 @@
 #include "RageDisplay.h"
 #include "LightsManager.h"
 #include "Game.h"
+#include "ScreenDimensions.h"
 
 
 ScreenTestLights::ScreenTestLights( CString sClassName ) : ScreenWithMenuElements( sClassName )

stepmania/src/ScreenTextEntry.cpp

@@ -8,14 +8,15 @@
 #include "PrefsManager.h"
 #include "ThemeManager.h"
 #include "FontCharAliases.h"
+#include "ScreenDimensions.h"
 
-const float QUESTION_X	=	CENTER_X;
-const float QUESTION_Y	=	CENTER_Y - 60;
+#define QUESTION_X		(CENTER_X)
+#define QUESTION_Y		(CENTER_Y - 60)
 
-const float ANSWER_X	=	CENTER_X;
-const float ANSWER_Y	=	CENTER_Y + 120;
-const float ANSWER_WIDTH	=	440;
-const float ANSWER_HEIGHT	=	30;
+#define ANSWER_X		(CENTER_X)
+#define ANSWER_Y		(CENTER_Y + 120)
+#define ANSWER_WIDTH	(440)
+#define ANSWER_HEIGHT	(30)
 
 
 CString ScreenTextEntry::s_sLastAnswer = "";

stepmania/src/SnapDisplay.cpp

@@ -4,6 +4,7 @@
 #include "GameState.h"
 #include "ThemeManager.h"
 #include "Style.h"
+#include "ScreenDimensions.h"
 
 
 SnapDisplay::SnapDisplay()

stepmania/src/StepMania.dsp

@@ -59,10 +59,10 @@ LINK32=link.exe
 # SUBTRACT LINK32 /verbose /profile /pdb:none /incremental:no /nodefaultlib
 # Begin Special Build Tool
 IntDir=.\../Debug6
-TargetDir=\temp\stepmania\Program
+TargetDir=\stepmania\stepmania\Program
 TargetName=StepMania-debug
 SOURCE="$(InputPath)"
-PreLink_Cmds=disasm\verinc                                                                                                                                       	cl                                                                                                                                       /Zl                                                                                                                                       /nologo                                                                                                                                       /c                                                                                                                                       verstub.cpp                                                                                                                                       /Fo$(IntDir)\ 
+PreLink_Cmds=disasm\verinc                                                                                                                                        	cl                                                                                                                                        /Zl                                                                                                                                        /nologo                                                                                                                                        /c                                                                                                                                        verstub.cpp                                                                                                                                        /Fo$(IntDir)\ 
 PostBuild_Cmds=disasm\mapconv $(IntDir)\$(TargetName).map $(TargetDir)\StepMania.vdi
 # End Special Build Tool
 
@@ -96,10 +96,10 @@ LINK32=link.exe
 # SUBTRACT LINK32 /verbose /pdb:none /debug
 # Begin Special Build Tool
 IntDir=.\../Release6
-TargetDir=\temp\stepmania\Program
+TargetDir=\stepmania\stepmania\Program
 TargetName=StepMania
 SOURCE="$(InputPath)"
-PreLink_Cmds=disasm\verinc                                                                                                                                        	cl                                                                                                 /Zl                                                                                                 /nologo                                                                                                 /c                                                                                                 verstub.cpp                                                                                                 /Fo$(IntDir)\ 
+PreLink_Cmds=disasm\verinc                                                                                                                                         	cl                                                                                                  /Zl                                                                                                  /nologo                                                                                                  /c                                                                                                  verstub.cpp                                                                                                  /Fo$(IntDir)\ 
 PostBuild_Cmds=disasm\mapconv $(IntDir)\$(TargetName).map $(TargetDir)\StepMania.vdi
 # End Special Build Tool
 
@@ -952,6 +952,10 @@ SOURCE=.\ScoreKeeperRave.h
 # End Source File
 # Begin Source File
 
+SOURCE=.\ScreenDimensions.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=.\Song.cpp
 # End Source File
 # Begin Source File

stepmania/src/StepMania.vcproj

@@ -830,6 +830,9 @@ cl /Zl /nologo /c verstub.cpp /Fo"$(IntDir)"\
 			<File
 				RelativePath="ScoreKeeperRave.h">
 			</File>
+			<File
+				RelativePath="ScreenDimensions.cpp">
+			</File>
 			<File
 				RelativePath=".\Song.cpp">
 			</File>

stepmania/src/ThemeManager.cpp

@@ -15,6 +15,8 @@
 #include "RageFile.h"
 #include "ScreenManager.h"
 #include "StepMania.h"
+#include "Foreach.h"
+#include "ThemeMetric.h"
 
 
 ThemeManager*	THEME = NULL;	// global object accessable from anywhere in the program
@@ -45,6 +47,28 @@ struct Theme
 deque<Theme> g_vThemes;
 
 
+
+
+//
+// For self-registering metrics
+//
+static vector<IThemeMetric*> *g_pvpSubscribers = NULL;
+
+void ThemeManager::Subscribe( IThemeMetric *p )
+{
+	// TRICKY: If we make this a global vector instead of a global pointer,
+	// then we'd have to be careful that the static constructors of all
+	// Preferences are called before the vector constructor.  It's
+	// too tricky to enfore that, so we'll allocate the vector ourself
+	// so that the compiler can't possibly call the vector constructor
+	// after we've already added to the vector.
+	if( g_pvpSubscribers == NULL )
+		g_pvpSubscribers = new vector<IThemeMetric*>;
+	g_pvpSubscribers->push_back( p );
+}
+
+
+
 /* We spend a lot of time doing redundant theme path lookups.  Cache results. */
 static map<CString, CString> g_ThemePathCache[NUM_ELEMENT_CATEGORIES];
 
@@ -221,6 +245,9 @@ void ThemeManager::SwitchThemeAndLanguage( CString sThemeName, CString sLanguage
 	// reload common sounds
 	if ( SCREENMAN != NULL )
 		SCREENMAN->ThemeChanged();
+
+	// reload subscribers
+	FOREACH( IThemeMetric*, *g_pvpSubscribers, p ) (*p)->Read();
 }
 
 CString ThemeManager::GetThemeDirFromName( const CString &sThemeName )

stepmania/src/ThemeManager.h

@@ -8,6 +8,7 @@
 #include <set>
 #include <deque>
 
+class IThemeMetric;
 class IniFile;
 
 enum ElementCategory { BGAnimations, Fonts, Graphics, Numbers, Sounds, Other, NUM_ELEMENT_CATEGORIES };
@@ -57,6 +58,17 @@ public:
 	float		GetMetricF( CString sClassName, CString sValueName );
 	bool		GetMetricB( CString sClassName, CString sValueName );
 	RageColor	GetMetricC( CString sClassName, CString sValueName );
+	void	GetMetric( CString sClassName, CString sValueName, CString &valueOut )	{ valueOut = GetMetric( sClassName, sValueName ); }
+	void	GetMetric( CString sClassName, CString sValueName, int &valueOut )		{ valueOut = GetMetricI( sClassName, sValueName ); }
+	void	GetMetric( CString sClassName, CString sValueName, float &valueOut )	{ valueOut = GetMetricF( sClassName, sValueName ); }
+	void	GetMetric( CString sClassName, CString sValueName, bool &valueOut )		{ valueOut = GetMetricB( sClassName, sValueName ); }
+	void	GetMetric( CString sClassName, CString sValueName, RageColor &valueOut ){ valueOut = GetMetricC( sClassName, sValueName ); }
+
+	//
+	// For self-registering metrics
+	//
+	static void Subscribe( IThemeMetric *p );
+
 
 protected:
 	void LoadThemeRecursive( deque<Theme> &theme, CString sThemeName );

stepmania/src/ThemeMetric.h

@@ -0,0 +1,73 @@
+/* ThemeMetric - Theme specific data. */
+
+#ifndef THEME_METRIC_H
+#define THEME_METRIC_H
+
+#include "IniFile.h"
+#include "ThemeManager.h"
+
+class IThemeMetric
+{
+public:
+	virtual ~IThemeMetric() { }
+	virtual void Read() = 0;
+};
+
+template <class T>
+class ThemeMetric : public IThemeMetric
+{
+private:
+	CString		m_sGroup;
+	CString		m_sName;
+	T			m_currentValue;
+
+public:
+	ThemeMetric( const CString& sGroup, const CString& sName ):
+		m_sGroup( sGroup ),
+		m_sName( sName )
+	{
+		ThemeManager::Subscribe( this );
+	}
+
+	void Read()
+	{
+		THEME->GetMetric( m_sGroup, m_sName, m_currentValue );
+	}
+
+	const T& GetValue() const
+	{
+		return m_currentValue;
+	}
+	
+	operator const T& () const
+	{
+		return m_currentValue;
+	}
+};
+
+#endif
+
+/*
+ * (c) 2001-2004 Chris Danford, Chris Gomez
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */