iphone orientation

panda/src/display/graphicsEngine.cxx

@@ -1907,7 +1907,7 @@ do_add_gsg(GraphicsStateGuardian *gsg, GraphicsPipe *pipe,
 void GraphicsEngine::
 do_remove_window(GraphicsOutput *window, Thread *current_thread) {
   PT(GraphicsPipe) pipe = window->get_pipe();
-  window->_pipe = (GraphicsPipe *)NULL;
+  window->clear_pipe();
 
   if (!_windows_sorted) {
     do_resort_windows();

panda/src/display/graphicsOutput.cxx

@@ -974,7 +974,7 @@ set_close_now() {
 ////////////////////////////////////////////////////////////////////
 //     Function: GraphicsOutput::reset_window
 //       Access: Protected, Virtual
-//  Description: resets the window framebuffer from its derived
+//  Description: Resets the window framebuffer from its derived
 //               children. Does nothing here.
 ////////////////////////////////////////////////////////////////////
 void GraphicsOutput::
@@ -983,6 +983,18 @@ reset_window(bool swapchain) {
     << "Resetting " << get_type() << "\n";
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsOutput::clear_pipe
+//       Access: Protected, Virtual
+//  Description: Sets the window's _pipe pointer to NULL; this is
+//               generally called only as a precursor to deleting the
+//               window.
+////////////////////////////////////////////////////////////////////
+void GraphicsOutput::
+clear_pipe() {
+  _pipe = (GraphicsPipe *)NULL;
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: GraphicsOutput::begin_frame
 //       Access: Public, Virtual

panda/src/display/graphicsOutput.h

@@ -195,6 +195,7 @@ public:
 
   virtual void set_close_now();
   virtual void reset_window(bool swapchain);
+  virtual void clear_pipe();
 
   void set_size_and_recalc(int x, int y);
   

panda/src/framework/pandaFramework.cxx

@@ -1492,6 +1492,7 @@ event_window_event(const Event *event, void *data) {
 
     } else {
       if (!win->is_valid()) {
+        // The window has been closed.
         int window_index = self->find_window(win);
         while (window_index != -1) {
           self->close_window(window_index);
@@ -1507,6 +1508,13 @@ event_window_event(const Event *event, void *data) {
             << "Last window was closed by user.\n";
           self->_exit_flag = true;
         }
+      } else {
+        // Adjust aspect ratio.
+        for (int n = 0; n < (int)self->_windows.size(); n++) {
+          if (self->_windows[n]->get_graphics_output() == win) {
+            return self->_windows[n]->adjust_aspect_ratio();
+          }
+        }
       }
     }
   }

panda/src/framework/windowFramework.cxx

@@ -769,6 +769,49 @@ set_anim_controls(bool enable) {
   }
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: WindowFramework::adjust_aspect_ratio
+//       Access: Public
+//  Description: Reevaluates the aspect ratio of the window,
+//               presumably after the window has been resized by the
+//               user or some other force.  Adjusts the render film
+//               size and aspect2d scale as necessary according to the
+//               new window shape, or new config setting.
+////////////////////////////////////////////////////////////////////
+void WindowFramework::
+adjust_aspect_ratio() {
+  float this_aspect_ratio = aspect_ratio;
+  int x_size = 0, y_size = 0;
+  if (this_aspect_ratio == 0.0f) {
+    // An aspect ratio of 0.0 means to try to infer it.
+    this_aspect_ratio = 1.0f;
+    
+    if (_window->has_size()) {
+      x_size = _window->get_x_size();
+      y_size = _window->get_y_size();
+      if (y_size != 0) {
+        this_aspect_ratio = (float)x_size / (float)y_size;
+      }
+    }
+  }
+
+  if (!_aspect_2d.is_empty()) {
+    _aspect_2d.set_scale(1.0f / this_aspect_ratio, 1.0f, 1.0f);
+  }
+
+  Cameras::iterator ci;
+  for (ci = _cameras.begin(); ci != _cameras.end(); ++ci) {
+    Lens *lens = (*ci)->get_lens();
+    if (lens != (Lens *)NULL) {
+      if (y_size != 0) {
+        lens->set_film_size(x_size, y_size);
+      } else {
+        lens->set_aspect_ratio(this_aspect_ratio);
+      }
+    }
+  }
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: WindowFramework::split_window
 //       Access: Public

panda/src/framework/windowFramework.h

@@ -96,6 +96,7 @@ public:
   void next_anim_control();
   void set_anim_controls(bool enable);
   INLINE bool get_anim_controls() const;
+  void adjust_aspect_ratio();
 
   enum BackgroundType {
     BT_other = 0,

panda/src/iphone/config_iphone.h

@@ -19,6 +19,8 @@
 
 NotifyCategoryDecl(iphone, EXPCL_PANDAGL, EXPTP_PANDAGL);
 
+extern ConfigVariableBool iphone_autorotate_view;
+
 extern EXPCL_PANDAGL void init_libiphone();
 extern "C" EXPCL_PANDAGL int get_pipe_type_iphone();
 

panda/src/iphone/config_iphone.mm

@@ -30,6 +30,12 @@ ConfigureFn(config_iphone) {
   init_libiphone();
 }
 
+ConfigVariableBool iphone_autorotate_view
+("iphone-autorotate-view", true,
+ PRC_DESC("Set this true to enable the iphone application to rotate its "
+          "view automatically according to the phone's orientation, or "
+          "false for its view to remain fixed."));
+
 ////////////////////////////////////////////////////////////////////
 //     Function: init_libiphone
 //  Description: Initializes the library.  This must be called at

panda/src/iphone/eaglView.h

@@ -12,30 +12,36 @@
 //
 ////////////////////////////////////////////////////////////////////
 
+#include "pandabase.h"
 #import <UIKit/UIKit.h>
 #import <OpenGLES/EAGL.h>
 #import <OpenGLES/ES1/gl.h>
 #import <OpenGLES/ES1/glext.h>
 
+class IPhoneGraphicsWindow;
+
 /*
 This class wraps the CAEAGLLayer from CoreAnimation into a convenient UIView subclass.
 The view content is basically an EAGL surface you render your OpenGL scene into.
 Note that setting the view non-opaque will only work if the EAGL surface has an alpha channel.
 */
 @interface EAGLView : UIView {
-    
+
+@public
+  IPhoneGraphicsWindow *_window;
 @private
-    /* The pixel dimensions of the backbuffer */
-    GLint backingWidth;
-    GLint backingHeight;
-    
-    EAGLContext *context;
-    
-    /* OpenGL names for the renderbuffer and framebuffers used to render to this view */
-    GLuint viewRenderbuffer, viewFramebuffer;
-    
-    /* OpenGL name for the depth buffer that is attached to viewFramebuffer, if it exists (0 if it does not exist) */
-    GLuint depthRenderbuffer;
+
+  /* The pixel dimensions of the backbuffer */
+  GLint backingWidth;
+ GLint backingHeight;
+ 
+ EAGLContext *context;
+ 
+ /* OpenGL names for the renderbuffer and framebuffers used to render to this view */
+ GLuint viewRenderbuffer, viewFramebuffer;
+ 
+ /* OpenGL name for the depth buffer that is attached to viewFramebuffer, if it exists (0 if it does not exist) */
+ GLuint depthRenderbuffer;
 }
 
 - (void)presentView;

panda/src/iphone/eaglView.mm

@@ -12,10 +12,14 @@
 //
 ////////////////////////////////////////////////////////////////////
 
+#import "EAGLView.h"
+
 #import <QuartzCore/QuartzCore.h>
 #import <OpenGLES/EAGLDrawable.h>
 
-#import "EAGLView.h"
+#include "pandabase.h"
+#include "pnotify.h"
+#include "iPhoneGraphicsWindow.h"
 
 #define USE_DEPTH_BUFFER 1
 
@@ -42,86 +46,95 @@
 
 
 - (id)initWithFrame:(CGRect)frame {
+  if ((self = [super initWithFrame:frame])) {
+    // Get the layer
+    CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer;
     
-    if ((self = [super initWithFrame:frame])) {
-        // Get the layer
-        CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer;
-        
-        eaglLayer.opaque = YES;
-        eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
-                                        [NSNumber numberWithBool:NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
-        
-        context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
-        
-        if (!context || ![EAGLContext setCurrentContext:context]) {
-            [self release];
-            return nil;
-        }
+    eaglLayer.opaque = YES;
+    eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
+                                                   [NSNumber numberWithBool:NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
+    
+    context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
+    
+    if (!context || ![EAGLContext setCurrentContext:context]) {
+      [self release];
+      return nil;
     }
-    return self;
+    _window = NULL;
+    viewFramebuffer = 0;
+    viewRenderbuffer = 0;
+    depthRenderbuffer = 0;
+  }
+  return self;
 }
 
 
 - (void)presentView {
-    [context presentRenderbuffer:GL_RENDERBUFFER_OES];
+  [context presentRenderbuffer:GL_RENDERBUFFER_OES];
 }
 
 
 - (void)layoutSubviews {
-    [EAGLContext setCurrentContext:context];
-    [self destroyFramebuffer];
-    [self createFramebuffer];
-    //    [self drawView];
+  [EAGLContext setCurrentContext:context];
+  [self destroyFramebuffer];
+  [self createFramebuffer];
+
+  if (_window != NULL) {
+    _window->rotate_window();
+  }
 }
 
 
 - (BOOL)createFramebuffer {
-    
-    glGenFramebuffersOES(1, &viewFramebuffer);
-    glGenRenderbuffersOES(1, &viewRenderbuffer);
-    
-    glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
+  glGenFramebuffersOES(1, &viewFramebuffer);
+  glGenRenderbuffersOES(1, &viewRenderbuffer);
+  
+  glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
+  glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
+  [context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(CAEAGLLayer*)self.layer];
+  glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);
+  
+  glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
+  glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);
+  
+  if (USE_DEPTH_BUFFER) {
+    glGenRenderbuffersOES(1, &depthRenderbuffer);
+    glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
+    glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, backingWidth, backingHeight);
+    glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
     glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
-    [context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(CAEAGLLayer*)self.layer];
-    glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);
-    
-    glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
-    glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);
-    
-    if (USE_DEPTH_BUFFER) {
-        glGenRenderbuffersOES(1, &depthRenderbuffer);
-        glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
-        glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, backingWidth, backingHeight);
-        glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
-        glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
-    }
-    
-    if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) {
-        NSLog(@"failed to make complete framebuffer object %x", glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES));
-        return NO;
-    }
-
-    // Make sure the buffer is initially cleared, so we don't look at
-    // whatever happened to be in the framebuffer.
-    glClearColor(0, 0, 0, 1);
-    glClear(GL_COLOR_BUFFER_BIT);
-    [context presentRenderbuffer:GL_RENDERBUFFER_OES];
-    
-    return YES;
+  }
+  
+  if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) {
+    NSLog(@"failed to make complete framebuffer object %x", glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES));
+    return NO;
+  }
+  
+  // Make sure the buffer is initially cleared, so we don't look at
+  // whatever happened to be in the framebuffer.
+  glClearColor(0, 0, 0, 1);
+  glClear(GL_COLOR_BUFFER_BIT);
+  [context presentRenderbuffer:GL_RENDERBUFFER_OES];
+  
+  return YES;
 }
 
 
 - (void)destroyFramebuffer {
-    
+  if (viewFramebuffer != 0) {
     glDeleteFramebuffersOES(1, &viewFramebuffer);
     viewFramebuffer = 0;
+  }
+
+  if (viewRenderbuffer != 0) {
     glDeleteRenderbuffersOES(1, &viewRenderbuffer);
     viewRenderbuffer = 0;
+  }
     
-    if(depthRenderbuffer) {
-        glDeleteRenderbuffersOES(1, &depthRenderbuffer);
-        depthRenderbuffer = 0;
-    }
+  if (depthRenderbuffer) {
+    glDeleteRenderbuffersOES(1, &depthRenderbuffer);
+    depthRenderbuffer = 0;
+  }
 }
 
 - (void)dealloc {

panda/src/iphone/iPhoneGraphicsPipe.h

@@ -17,10 +17,12 @@
 
 #include "pandabase.h"
 #include "graphicsPipe.h"
+#include "pset.h"
 #import "viewController.h"
 #import <UIKit/UIKit.h>
 
 class IPhoneGraphicsStateGuardian;
+class IPhoneGraphicsWindow;
 class PNMImage;
 
 ////////////////////////////////////////////////////////////////////
@@ -38,6 +40,8 @@ public:
   static PT(GraphicsPipe) pipe_constructor();
   virtual PreferredWindowThread get_preferred_window_thread() const;
 
+  void rotate_windows();
+
 protected:
   virtual PT(GraphicsOutput) make_output(const string &name,
                                          const FrameBufferProperties &fb_prop,
@@ -53,6 +57,9 @@ public:
   UIWindow *_window; 
   ControllerDemoViewController *_view_controller;
 
+  typedef pset<IPhoneGraphicsWindow *> GraphicsWindows;
+  GraphicsWindows _graphics_windows;
+
 private:
   static IPhoneGraphicsPipe *_global_ptr;
 

panda/src/iphone/iPhoneGraphicsPipe.mm

@@ -33,7 +33,7 @@ IPhoneGraphicsPipe() {
   CGRect screenBounds = [ [ UIScreen mainScreen ] bounds ]; 
 
   _window = [ [ UIWindow alloc ] initWithFrame: screenBounds ];
-  _view_controller = [ [ ControllerDemoViewController alloc ] init ]; 
+  _view_controller = [ [ ControllerDemoViewController alloc ] initWithPipe: this ]; 
 
   [ _window addSubview:_view_controller.view ]; 
   [ _window makeKeyAndVisible ];
@@ -97,6 +97,22 @@ IPhoneGraphicsPipe::get_preferred_window_thread() const {
   return PWT_app;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: IPhoneGraphicsPipe::rotate_windows
+//       Access: Public, Virtual
+//  Description: Called in response to an orientation change event,
+//               this tells all of the windows created on the pipe to
+//               resize themselves according to the new orientation.
+////////////////////////////////////////////////////////////////////
+void IPhoneGraphicsPipe::
+rotate_windows() {
+  GraphicsWindows::iterator gwi;
+  for (gwi = _graphics_windows.begin(); gwi != _graphics_windows.end(); ++gwi) {
+    IPhoneGraphicsWindow *win = (*gwi);
+    win->rotate_window();
+  }
+}
+
 
 ////////////////////////////////////////////////////////////////////
 //     Function: IPhoneGraphicsPipe::make_output

panda/src/iphone/iPhoneGraphicsWindow.h

@@ -44,6 +44,9 @@ public:
   virtual void process_events();
 
   virtual void set_properties_now(WindowProperties &properties);
+  virtual void clear_pipe();
+
+  void rotate_window();
 
 protected:
   virtual void close_window();

panda/src/iphone/iPhoneGraphicsWindow.mm

@@ -17,10 +17,10 @@
 // gets included later (in particular, TCP_NODELAY must not be a
 // #define symbol for these headers to be included properly).
 
-//#include <ApplicationServices/ApplicationServices.h>
 #include <UIKit/UIKit.h>
 
 #include "iPhoneGraphicsWindow.h"
+#include "dcast.h"
 #include "config_iphone.h"
 #include "iPhoneGraphicsPipe.h"
 #include "pStatTimer.h"
@@ -53,6 +53,9 @@ IPhoneGraphicsWindow(GraphicsEngine *engine, GraphicsPipe *pipe,
                      GraphicsOutput *host) :
   GraphicsWindow(engine, pipe, name, fb_prop, win_prop, flags, gsg, host)
 {
+  IPhoneGraphicsPipe *ipipe;
+  DCAST_INTO_V(ipipe, _pipe);
+  ipipe->_graphics_windows.insert(this);
   _gl_view = nil;
 
   GraphicsWindowInputDevice device =
@@ -196,23 +199,24 @@ close_window() {
 ////////////////////////////////////////////////////////////////////
 bool IPhoneGraphicsWindow::
 open_window() {
-  iphone_cat.info() << "open_window\n";
-
   nassertr(_gsg == (GraphicsStateGuardian *)NULL, false);
 
   _gl_view = [ [ EAGLView alloc ] initWithFrame: 
         [ [ UIScreen mainScreen ] applicationFrame ] 
     ]; 
+  _gl_view->_window = this;
+  
   IPhoneGraphicsPipe *iphonepipe = DCAST(IPhoneGraphicsPipe, _pipe);
   nassertr(iphonepipe != NULL, false);
 
   iphonepipe->_view_controller.view = _gl_view;
   [ _gl_view layoutSubviews ];
 
-  WindowProperties req_properties = _properties;
-
   _gsg = new IPhoneGraphicsStateGuardian(_engine, _pipe, NULL);
 
+  CGRect bounds = [_gl_view bounds];
+
+  _properties.set_size(bounds.size.width, bounds.size.height);
   _properties.set_foreground(true);
   _properties.set_minimized(false);
   _properties.set_open(true);
@@ -262,3 +266,35 @@ set_properties_now(WindowProperties &properties) {
  
   GraphicsWindow::set_properties_now(properties);
 }
+
+////////////////////////////////////////////////////////////////////
+//     Function: IPhoneGraphicsWindow::clear_pipe
+//       Access: Protected, Virtual
+//  Description: Sets the window's _pipe pointer to NULL; this is
+//               generally called only as a precursor to deleting the
+//               window.
+////////////////////////////////////////////////////////////////////
+void IPhoneGraphicsWindow::
+clear_pipe() {
+  IPhoneGraphicsPipe *ipipe;
+  DCAST_INTO_V(ipipe, _pipe);
+  ipipe->_graphics_windows.erase(this);
+
+  GraphicsWindow::clear_pipe();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: IPhoneGraphicsWindow::rotate_window
+//       Access: Public, Virtual
+//  Description: Called in response to an orientation change event,
+//               this tells the window to resize itself according to
+//               the new orientation.
+////////////////////////////////////////////////////////////////////
+void IPhoneGraphicsWindow::
+rotate_window() {
+  CGRect bounds = [_gl_view bounds];
+
+  WindowProperties properties;
+  properties.set_size(bounds.size.width, bounds.size.height);
+  system_changed_properties(properties);
+}

panda/src/iphone/pview_delegate.mm

@@ -108,7 +108,7 @@ signal_handler(int i) {
     // load the models.  We have this funny deferred-window technique,
     // so SpringBoard will see that the app has fully initialized and
     // won't kill us if we take a while loading models.
-    WindowFramework *window = framework.open_window();
+    framework.open_window();
     startup = 1;
 
   } else if (startup == 1) {
@@ -148,9 +148,14 @@ signal_handler(int i) {
   }
 }
 
-- (void)dealloc { 
+- (void)applicationWillTerminate:
+(UIApplication *)application
+{
   [self stopAnimation];
   framework.close_framework();
+}
+
+- (void)dealloc { 
   [super dealloc]; 
 } 
 

panda/src/iphone/viewController.h

@@ -17,8 +17,13 @@
 #import <UIKit/UIKit.h> 
 #import <UIKit/UITextView.h> 
 
+class IPhoneGraphicsPipe;
+
 @interface ControllerDemoViewController : UIViewController { 
-  //    NSString *helloWorld, *woahDizzy; 
+
+@private
+  IPhoneGraphicsPipe *_pipe;
 } 
 
+- (id)initWithPipe: (IPhoneGraphicsPipe *)pipe;
 @end 

panda/src/iphone/viewController.mm

@@ -14,66 +14,43 @@
 
 #import "viewController.h" 
 #include "pnotify.h"
+#include "iPhoneGraphicsPipe.h"
+#include "config_iphone.h"
 
 @implementation ControllerDemoViewController 
 
-- (id)init { 
-
-    self = [ super init ]; 
-
-    /*
-    if (self != nil) { 
-        helloWorld = [ [ NSString alloc ] initWithString: @"Hello, World!" ]; 
-        woahDizzy = [ [ NSString alloc ] initWithString: @"Woah, I'm Dizzy!" ]; 
-    } 
-    */
-
-    return self; 
-} 
-
-- (void)loadView { 
-
-    [ super loadView ]; 
-
-    /*
-    glView = [ [ EAGLView alloc ] initWithFrame: 
-        [ [ UIScreen mainScreen ] applicationFrame ] 
-    ];
-    //    [ glView startAnimation ];
-
-   self.view = glView; 
-    */
-} 
-
-/*
--(BOOL)shouldAutorotateToInterfaceOrientation: 
-(UIInterfaceOrientation)interfaceOrientation 
+- (id)initWithPipe:
+  (IPhoneGraphicsPipe *)pipe
 { 
-  return YES; 
+  self = [ super init ]; 
+  _pipe = pipe;
+  return self; 
 } 
-*/
 
--  (void)didRotateFromInterfaceOrientation: 
-(UIInterfaceOrientation)fromInterfaceOrientation 
+- (BOOL)shouldAutorotateToInterfaceOrientation:
+  (UIInterfaceOrientation)interfaceOrientation 
 { 
+  return iphone_autorotate_view;
+} 
+
+- (void)didRotateFromInterfaceOrientation: 
+  (UIInterfaceOrientation)fromInterfaceOrientation 
+{ 
+  _pipe->rotate_windows();
 } 
 
 - (void)viewDidLoad { 
-    [ super viewDidLoad ]; 
-    /* Add custom post-load code here */ 
+  [ super viewDidLoad ]; 
+  /* Add custom post-load code here */ 
 } 
 
 - (void)didReceiveMemoryWarning { 
-    [ super didReceiveMemoryWarning ]; 
-    /* Add custom low-memory code here */ 
-    nout << "low-memory handler in view controller\n";
+  [ super didReceiveMemoryWarning ]; 
+  /* Add custom low-memory code here */ 
+  nout << "low-memory handler in view controller\n";
 } 
 
 - (void)dealloc { 
-    /* Here, the objects we've allocated are released */ 
-  //[ helloWorld release ]; 
-  //    [ woahDizzy release ]; 
-  //    [ glView release ]; 
   [ super dealloc ]; 
 }