//
//  main.m
//  SensorSDK3
//
#import <UIKit/UIKit.h>

int main(int argc, char *argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    int retVal = UIApplicationMain(argc, argv, nil, @"SensorSDK3AppDelegate");
    [pool release];
    return retVal;
}

//
//  SensorSDK3AppDelegate.h
//  SensorSDK3
//

#import <UIKit/UIKit.h>
#include <stdio.h>
#include <time.h>
#include <math.h>

#define kUpdateFrequency 10  // Hz


@interface SensorSDK3AppDelegate : NSObject <UIAccelerometerDelegate> {
    UIWindow	*window;
	UITextView   *textView;
	UIImageView  *xarrow;
}

@property (nonatomic, retain) UIWindow *window;
@property (nonatomic, retain) UITextView *textView;
@property (nonatomic, retain) UIImageView  *xarrow;

- (void)acceleratedInX:(float)xx Y:(float)yy Z:(float)zz;
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration;
@end

//
//  SensorSDK3AppDelegate.m
//  SensorSDK3
//

#import "SensorSDK3AppDelegate.h"

UIImage *createImageWithText(CGSize imageSize, NSString *text);

@implementation SensorSDK3AppDelegate

@synthesize window;
@synthesize textView;
@synthesize xarrow;

- (void)applicationDidFinishLaunching:(UIApplication *)application {	

	self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];


	self.textView = [[UITextView alloc] initWithFrame: [[UIScreen mainScreen] applicationFrame]];
	self.textView.font = [UIFont systemFontOfSize:24];
    self.textView.editable = NO;
    self.textView.textAlignment = UITextAlignmentLeft;

	UIImage *img = createImageWithText(CGSizeMake(85,40),@"-->");
	self.xarrow = [[UIImageView alloc] initWithImage:img];
	self.xarrow.center=self.textView.center;
    self.xarrow.clearsContextBeforeDrawing = NO;

	
    [textView addSubview:xarrow];

	// Show window
	[window addSubview:textView];
	[window makeKeyAndVisible];

	[[UIAccelerometer sharedAccelerometer] setUpdateInterval:(20.0 / kUpdateFrequency)];
	[[UIAccelerometer sharedAccelerometer] setDelegate:self];

}

/*
The meaning of X, Y, Z by Erica Sadun (with modification for the range from -1.0 to 1.0 for firmware 2.0)
X = Roll X corresponds to roll, or rotation around the axis that runs from your home button to your earpiece. 
    Values vary from 1.0 (rolled all the way to the left) to -1.0 (rolled all the way to the right).

Y = Pitch. Place your iPhone on the table and mentally draw a horizontal line about half-way down the screen. 
    That's the axis around which the Y value rotates. 
	Values go from 1.0 (the headphone jack straight down) to -1.0 (the headphone jack straight up).

Z = Face up/face down. I expected the Z value to correspond to yaw. And it does not. 
    It refers to whether your iPhone is face up (-1.0) or face down (1.0). 
	When placed on it side, either the side with the volume controls and ringer switch, or the side directly opposite
	, the Z value equates to 0.0.
*/

- (void)acceleratedInX:(float)xx Y:(float)yy Z:(float)zz
{

   // Create Status feedback string
   NSString *xstring = [NSString stringWithFormat:
      @"X (roll, %4.1f%%): %f\nY (pitch %4.1f%%): %f\nZ (%4.1f%%) : %f",
      100.0 - (xx + 1.0) * 100.0, xx, 
      100.0 - (yy + 1.0) * 100.0, yy, 
      100.0 - (zz + 1.0) * 100.0, zz
	  ];
	  self.textView.text = xstring;

   // Revert Arrow and then rotate to new coords
   float angle = atan2(xx, yy);
   angle += M_PI / 2.0;

	CGAffineTransform affineTransform = CGAffineTransformIdentity;
	affineTransform = CGAffineTransformConcat( affineTransform, CGAffineTransformMakeRotation(angle));
	self.xarrow.transform = affineTransform;

}

- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
	[self acceleratedInX:acceleration.x Y:acceleration.y Z:acceleration.z];
}


- (void)dealloc {
	[textView release];
	[xarrow release];
	[window release];
	[super dealloc];
}

@end

// Returns an image of the given size containing the given string
UIImage *createImageWithText(CGSize imageSize, NSString *text) {
	
	// Create a bitmap graphics context of the given size
	CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
	CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, imageSize.width*4, colorSpace, kCGImageAlphaPremultipliedLast);
	CGColorSpaceRelease(colorSpace);
	if (context== NULL) {
 		return nil;
	}
		
	// Custom CGContext coordinate system is flipped with respect to UIView, so transform, then push
	CGContextTranslateCTM(context, 0, imageSize.height);
	CGContextScaleCTM(context, 1.0, -1.0);
	UIGraphicsPushContext(context);

	// Inset the text rect then draw the text
	CGRect textRect = CGRectMake(4, 2, imageSize.width - 8, imageSize.height - 8);
	UIFont *font = [UIFont boldSystemFontOfSize:24];
	[[UIColor blackColor] set];
	[text drawInRect:textRect withFont:font lineBreakMode:UILineBreakModeWordWrap alignment:UITextAlignmentCenter];
	
	// Create and return the UIImage object
	CGImageRef cgImage = CGBitmapContextCreateImage(context);	
	UIImage *uiImage = [[UIImage alloc] initWithCGImage:cgImage];
	UIGraphicsPopContext();
	CGContextRelease(context);
	CGImageRelease(cgImage);
	return uiImage;
}

#ifdef ASPEN
#import "UIKit.h"
#import "SimpleTableViewAppDelegate.h"
#else
#import <UIKit/UIKit.h>
#endif

int main(int argc, char *argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
#ifdef ASPEN
	int retVal = UIApplicationMain(argc, argv, [SimpleTableViewAppDelegate class]);
#else
    int retVal = UIApplicationMain(argc, argv, nil, @"SimpleTableViewAppDelegate");
#endif
    [pool release];
    return retVal;
}

/*
File: SimpleTableViewAppDelegate.h
*/

#ifdef ASPEN
#import "UIKit.h"
#else
#import <UIKit/UIKit.h>
#endif
#import "RootViewController.h"

#ifdef ASPEN
@interface SimpleTableViewAppDelegate : UIApplication <UITextFieldDelegate, UISearchBarDelegate>
#else
@interface SimpleTableViewAppDelegate : NSObject <UIApplicationDelegate,UITextFieldDelegate, UISearchBarDelegate>
#endif
{
	
	IBOutlet UIWindow *window;
	UINavigationController *navigationController;
	
	NSMutableArray *list;
}

/*
File: RootViewController.h
*/
#ifdef ASPEN
#import "UIKit.h"
#else
#import <UIKit/UIKit.h>
#endif