[iPhone] Viewport is saved between program terminations

iphone/Maps/Classes/MapViewController.hpp

@@ -40,4 +40,7 @@ withConfidenceRadius: (double) confidenceRadius
 - (void) onResize: (GLint)width withHeight: (GLint)height;
 - (void) onPaint;
 
+// called when app is terminated by system
+- (void) OnTerminate;
+
 @end

iphone/Maps/Classes/MapViewController.mm

@@ -74,7 +74,10 @@ typedef FrameWork<model::FeaturesFetcher, Navigator, iphone::WindowHandle> frame
 		
 		// to perform a proper resize
 		[(EAGLView*)self.view layoutSubviews];
-		m_framework->ShowAll();
+    
+    // restore previous screen position
+    if (!m_framework->LoadState())
+			m_framework->ShowAll();
 	}
 	
 	return self;
@@ -295,4 +298,12 @@ NSInteger compareAddress(UITouch * l, UITouch * r, void * context)
 	m_framework->SetOrientation(newOrientation);
 }
 
+- (void) OnTerminate
+{
+	if (m_framework)
+  {	// save world rect for next launch
+  	m_framework->SaveState();
+  }
+}
+
 @end

iphone/Maps/Classes/MapsAppDelegate.mm

@@ -6,6 +6,11 @@
 @synthesize window;
 @synthesize mapViewController;
 
+// here we're 
+- (void) applicationWillTerminate: (UIApplication *) application
+{
+	[mapViewController OnTerminate];
+}
 
 - (void) applicationDidFinishLaunching: (UIApplication *) application
 {