adv calc

gistfile1.m

//
//  CMViewController.m
//  Xcalc
//
//  Created by Chyld Medford on 8/9/12.
//  Copyright (c) 2012 Chyld Medford. All rights reserved.
//

#import "CMViewController.h"

@interface CMViewController ()

@end

@implementation CMViewController
@synthesize display;
@synthesize intermediate;

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [self setDisplay:nil];
    [self setIntermediate:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (IBAction)number:(id)sender {
    
    NSString *button_pressed = [[sender titleLabel] text];
    NSString *current_value = [display text];
    NSString *new_value;
    
    if([current_value isEqualToString:@"0"])
    {
        new_value = button_pressed;
    }
    else
    {
        new_value = [current_value stringByAppendingString:button_pressed];
    }
    
    [display setText:new_value];
}

- (IBAction)mul:(id)sender {
}

- (IBAction)add:(id)sender {
    NSString *val1 = [display text];
    NSString *val2 = [intermediate text];
    float f1 = [val1 floatValue];
    float f2 = [val2 floatValue];
    float answer = f1 + f2;
    NSString *final = [NSString stringWithFormat:@"%.02f", answer];
    [display setText:final];
    [intermediate setText:@""];
}

- (IBAction)sub:(id)sender {
}

- (IBAction)div:(id)sender {
}

- (IBAction)clear:(id)sender {
    [display setText:@"0"];
    [intermediate setText:@""];
}

- (IBAction)compute:(id)sender {
}

- (IBAction)push:(id)sender {
    [intermediate setText:[display text]];
    [display setText:@"0"];
}

- (IBAction)pie:(id)sender {
    NSNumber *n1 = [NSNumber numberWithDouble:M_PI];
    [display setText:[n1 stringValue]];
}
@end