the progress now displays on a mac. Needs some visual adjustments though.

Xcode/stepmania.xcodeproj/project.pbxproj

@@ -1661,6 +1661,8 @@
 		AAFF41A40F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.h in Headers */ = {isa = PBXBuildFile; fileRef = AAFF41A20F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.h */; };
 		AAFF41A50F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.cpp in Sources */ = {isa = PBXBuildFile; fileRef = AAFF41A10F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.cpp */; };
 		AAFF41A60F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.h in Headers */ = {isa = PBXBuildFile; fileRef = AAFF41A20F5BD4AD00FFDB67 /* ScreenOptionsExportPackage.h */; };
+		B71A60C0139B41DB00183A27 /* InGameLoadingWindow.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B71A60BE139B41DB00183A27 /* InGameLoadingWindow.cpp */; };
+		B71A60C1139B41DB00183A27 /* InGameLoadingWindow.h in Headers */ = {isa = PBXBuildFile; fileRef = B71A60BF139B41DB00183A27 /* InGameLoadingWindow.h */; };
 		B75CE3B5137963350076A82D /* SongPosition.h in Headers */ = {isa = PBXBuildFile; fileRef = B75CE3B3137963350076A82D /* SongPosition.h */; };
 		B75CE3B6137963350076A82D /* SongPosition.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B75CE3B4137963350076A82D /* SongPosition.cpp */; };
 		EE2153A910A75BEE0074B01B /* NotesLoaderPMS.cpp in Sources */ = {isa = PBXBuildFile; fileRef = EE2153A710A75BEE0074B01B /* NotesLoaderPMS.cpp */; };
@@ -3056,6 +3058,8 @@
 		AAFF55220549F43A00D02EE9 /* ComboGraph.h */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.h; name = ComboGraph.h; path = ../src/ComboGraph.h; sourceTree = "<group>"; };
 		AAFF5541054E736D00D02EE9 /* Attack.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.cpp; name = Attack.cpp; path = ../src/Attack.cpp; sourceTree = "<group>"; };
 		AAFF5542054E736D00D02EE9 /* Attack.h */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.h; name = Attack.h; path = ../src/Attack.h; sourceTree = "<group>"; };
+		B71A60BE139B41DB00183A27 /* InGameLoadingWindow.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = InGameLoadingWindow.cpp; sourceTree = "<group>"; };
+		B71A60BF139B41DB00183A27 /* InGameLoadingWindow.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = InGameLoadingWindow.h; sourceTree = "<group>"; };
 		B75CE3B3137963350076A82D /* SongPosition.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SongPosition.h; path = ../src/SongPosition.h; sourceTree = SOURCE_ROOT; };
 		B75CE3B4137963350076A82D /* SongPosition.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SongPosition.cpp; path = ../src/SongPosition.cpp; sourceTree = SOURCE_ROOT; };
 		EE2153A710A75BEE0074B01B /* NotesLoaderPMS.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NotesLoaderPMS.cpp; path = ../src/NotesLoaderPMS.cpp; sourceTree = SOURCE_ROOT; };
@@ -3279,6 +3283,8 @@
 		29B97315FDCFA39411CA2CEA /* Other Source */ = {
 			isa = PBXGroup;
 			children = (
+				B71A60BE139B41DB00183A27 /* InGameLoadingWindow.cpp */,
+				B71A60BF139B41DB00183A27 /* InGameLoadingWindow.h */,
 				AA70E3640663112800DAE1FD /* Foreach.h */,
 				3659B56D0F902143002B6B68 /* CommandLineActions.cpp */,
 				3659B56E0F902143002B6B68 /* CommandLineActions.h */,
@@ -5148,6 +5154,7 @@
 				2B9C2E8E137A138B004C92F3 /* NotesLoaderJson.h in Headers */,
 				2B9C2E90137A138B004C92F3 /* NotesWriterJson.h in Headers */,
 				2B43509513949F37006FA051 /* TimingSegments.h in Headers */,
+				B71A60C1139B41DB00183A27 /* InGameLoadingWindow.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -6489,6 +6496,7 @@
 				2BD06FF2137242680018CB9F /* json_value.cpp in Sources */,
 				2BD06FF4137242680018CB9F /* json_writer.cpp in Sources */,
 				2B43509613949F37006FA051 /* TimingSegments.cpp in Sources */,
+				B71A60C0139B41DB00183A27 /* InGameLoadingWindow.cpp in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

src/arch/LoadingWindow/LoadingWindow_MacOSX.h

@@ -9,6 +9,8 @@ public:
 	LoadingWindow_MacOSX();
 	~LoadingWindow_MacOSX();
 	void SetText( RString str );
+	void SetProgress( const int progress );
+	void SetTotalWork( const int totalWork );
 };
 #define USE_LOADING_WINDOW_MACOSX
 

src/arch/LoadingWindow/LoadingWindow_MacOSX.mm

@@ -10,8 +10,11 @@
 	NSWindow *m_Window;
 	NSTextView *m_Text;
 	NSAutoreleasePool *m_Pool;
+	NSProgressIndicator *m_ProgressIndicator;
 }
 - (void) setupWindow:(NSImage *)image;
+- (void) setProgress:(NSNumber *)progress;
+- (void) setTotalWork:(NSNumber *)totalWork;
 @end
 
 @implementation LoadingWindowHelper
@@ -21,14 +24,25 @@
 	NSRect viewRect, windowRect;
 	float height = 0.0f;
 	
+	NSRect progressIndicatorRect;
+	progressIndicatorRect = NSMakeRect(0, 0, size.width, 0);
+	m_ProgressIndicator = [[NSProgressIndicator alloc] initWithFrame:progressIndicatorRect];
+	[m_ProgressIndicator sizeToFit];
+	[m_ProgressIndicator setIndeterminate:NO];
+	[m_ProgressIndicator setMinValue:0];
+	[m_ProgressIndicator setMaxValue:1];
+	[m_ProgressIndicator setDoubleValue:0];
+	progressIndicatorRect = [m_ProgressIndicator frame];
+	float progressHeight = progressIndicatorRect.size.height;
+	
 	NSFont *font = [NSFont systemFontOfSize:0.0f];
 	NSRect textRect;
 	// Just give it a size until it is created.
-	textRect = NSMakeRect( 0, 0, size.width, size.height );
+	textRect = NSMakeRect( 0, progressHeight, size.width, size.height );
 	m_Text = [[NSTextView alloc] initWithFrame:textRect];
 	[m_Text setFont:font];
 	height = [[m_Text layoutManager] defaultLineHeightForFont:font]*3 + 4;
-	textRect = NSMakeRect( 0, 0, size.width, height );
+	textRect = NSMakeRect( 0, progressHeight, size.width, height );
 	
 	[m_Text setFrame:textRect];
 	[m_Text setEditable:NO];
@@ -40,12 +54,12 @@
 	[m_Text setVerticallyResizable:NO];
 	[m_Text setString:@"Initializing Hardware..."];
 	
-	viewRect = NSMakeRect( 0, height, size.width, size.height );
+	viewRect = NSMakeRect( 0, height + progressHeight, size.width, size.height );
 	NSImageView *iView = [[NSImageView alloc] initWithFrame:viewRect];
 	[iView setImage:image];
 	[iView setImageFrameStyle:NSImageFrameNone];
 	
-	windowRect = NSMakeRect( 0, 0, size.width, size.height + height );
+	windowRect = NSMakeRect( 0, 0, size.width, size.height + height + progressHeight);
 	m_Window = [[NSWindow alloc] initWithContentRect:windowRect
 					       styleMask:NSTitledWindowMask
 						 backing:NSBackingStoreBuffered
@@ -66,10 +80,22 @@
 	[view addSubview:iView];
 	[m_Text release];
 	[iView release];
+	[view addSubview:m_ProgressIndicator];
 
 	// Display the window.
 	[m_Window makeKeyAndOrderFront:nil];
 }	
+
+- (void) setProgress:(NSNumber *)progress
+{
+	[m_ProgressIndicator setDoubleValue:[progress doubleValue]];
+}
+
+- (void) setTotalWork:(NSNumber *)totalWork
+{
+	[m_ProgressIndicator setMaxValue:[totalWork doubleValue]];
+}
+
 @end
 
 static LoadingWindowHelper *g_Helper = nil;
@@ -124,6 +150,16 @@ void LoadingWindow_MacOSX::SetText( RString str )
 	[s release];
 }
 
+void LoadingWindow_MacOSX::SetProgress( const int progress )
+{
+	[g_Helper performSelectorOnMainThread:@selector(setProgress:) withObject:[NSNumber numberWithDouble:(double)progress] waitUntilDone:NO];
+}
+
+void LoadingWindow_MacOSX::SetTotalWork( const int totalWork )
+{
+	[g_Helper performSelectorOnMainThread:@selector(setTotalWork:) withObject:[NSNumber numberWithDouble:(double)totalWork] waitUntilDone:NO];
+}
+
 /*
  * (c) 2003-2006, 2008 Steve Checkoway
  * All rights reserved.