2008 Archives

测试代码:

    NSString *urlString =@"http://macgeeks.cn/index.php";

    NSURL *url = [NSURL URLWithString:urlString];

    NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url 

                                                cachePolicy:NSURLRequestReturnCacheDataElseLoad

                                            timeoutInterval:30];

    NSData *urlData;

    NSURLResponse *response;

    NSError *error;

    char *buffer[40960];

    memset(buffer,0,sizeof(40960));

    urlData = [NSURLConnection sendSynchronousRequest:urlRequest

                                    returningResponse:&response

                                                error:&error];

    [urlData getBytes:buffer];   

    printf("%s\n",buffer);

- (void)awakeFromNib

{

_imageArray = [NSMutableArray new];

NSBundle * mainBundle = [NSBundle mainBundle];

        NSArray * imagePaths = [mainBundle pathsForResourcesOfType:@"jpg"

inDirectory:nil];

int count = [imagePaths count];

NSMutableArray *colorArray = [NSMutableArray arrayWithObjects:

  nil];

int i;

        for (i = 0; i < count; i++) {

             NSImage *image = [[NSImage alloc] initWithContentsOfFile:

     [imagePaths objectAtIndex:i]];

     [image lockFocus];

     [NSBezierPath fillRect:NSMakeRect(0., 0., 200., 200.)];

     [[NSString stringWithFormat:@"hello %d", [_imageArray count]] drawAtPoint:NSMakePoint(5., 5.) withAttributes:nil];

     [image unlockFocus];

     MyImageItem *item = [[MyImageItem alloc] initWithImage:image imageID:[NSString stringWithFormat:@"image-%d", [_imageArray count]]];

     [_imageArray addObject:item];

             [image release];

       }

       [u_imageBrowser setDataSource:self];

       [u_imageBrowser reloadData];

}

-(void)drawInRect:(CGRect)b inContext:(CGContextRef)ctx

{

    NSLog(@"drawing");

    CGAffineTransform tf;

    tf = CGAffineTransformMake(b.size.width / funcRect.size.width, 0, 

                               0, b.size.height / funcRect.size.height, 

                               b.size.width/2, b.size.height/2);

    CGContextSaveGState(ctx);

    CGContextConcatCTM(ctx, tf);

    CGContextSetStrokeColorWithColor(ctx, color);

    CGContextSetLineWidth(ctx, 0.4);

    float distance = funcRect.size.width / HOPS;

    float currentX = funcRect.origin.x;

    BOOL first = YES;

    while (currentX <= funcRect.origin.x + funcRect.size.width) {

        float currentY = [self valueAt:currentX];

        if (first) {

            CGContextMoveToPoint(ctx, currentX, currentY);

            first = NO;

        } else {

            CGContextAddLineToPoint(ctx, currentX, currentY);

        }

        currentX += distance;

    }

    CGContextStrokePath(ctx);

    CGContextRestoreGState(ctx);

}

- (IBAction)createNewPolynomial:(id)sender

{    

    Polynomial *p = [[Polynomial alloc] init];

    [polynomials addObject:p];

    CALayer *layer = [CALayer layer];

    CGRect b = [[self layer] bounds]; 

    b = CGRectInset(b, MARGIN, MARGIN);

    CGPoint zeroPoint;

    zeroPoint.x = 0;

    zeroPoint.y = 0;    

    [layer setAnchorPoint:zeroPoint];

    [layer setFrame:b];

    [layer setDelegate:p];

    [layer setCornerRadius:12];

    [layer setBorderColor:[p color]];

    [layer setBorderWidth:3.5];

    [[self layer] addSublayer:layer];

    [layer display];

    CABasicAnimation *anim 

    = [CABasicAnimation animationWithKeyPath:@"position"];

    [anim setFromValue:[NSValue valueWithPoint:[self randomOffViewPosition]]];

    [anim setToValue:[NSValue valueWithPoint:NSMakePoint(MARGIN,MARGIN)]];

    [anim setDuration:1.0];

    CAMediaTimingFunction *f

    = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    [anim setTimingFunction:f];

    [layer addAnimation:anim forKey:@"whatever"];

}

- (IBAction)deleteRandomPolynomial:(id)sender

{

    NSArray *polynomialLayers = [[self layer] sublayers];

    if ([polynomialLayers count] == 0) {

        NSBeep();

        return;

    }

    int i = random() % [polynomialLayers count];

    NSPoint toPoint = [self randomOffViewPosition];

    CALayer *layerToPull = [polynomialLayers objectAtIndex:i];

    CABasicAnimation *anim 

    = [CABasicAnimation animationWithKeyPath:@"position"];

    [anim setValue:layerToPull forKey:@"representedPolynomialLayer"];

    [anim setFromValue:[NSValue valueWithPoint:NSMakePoint(MARGIN,MARGIN)]];

    [anim setToValue:[NSValue valueWithPoint:toPoint]];

    [anim setDuration:1.0];

    CAMediaTimingFunction *f

    = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    [anim setTimingFunction:f];

    [anim setDelegate:self];

    [layerToPull addAnimation:anim forKey:@"whatever"];

    [layerToPull setPosition:CGPointMake(toPoint.x, toPoint.y)];

}

    NSPoint bottom = NSMakePoint((bounds.size.width/2.0), 0);

    NSPoint bottom1 = NSMakePoint((bounds.size.width), 0);

    NSPoint bottom2 = NSMakePoint(0,(bounds.size.height));

//NSPoint bottom = NSMakePoint((0), 0);

    NSPoint top = NSMakePoint((bounds.size.width/2.0), bounds.size.height);

    NSPoint left = NSMakePoint(0, (bounds.size.height/2.0));

    NSPoint right = NSMakePoint(bounds.size.width, (bounds.size.height/2.0));

    [NSBezierPath setDefaultLineWidth:5];

//[NSBezierPath setDefaultLineWidth:<#(CGFloat)lineWidth#>];

    [[NSColor whiteColor] set];

    [NSBezierPath fillRect:bounds];

    [[NSColor redColor] set];

    [NSBezierPath strokeRect:bounds];

    //[NSBezierPath strokeLineFromPoint:top toPoint:bottom];

[NSBezierPath strokeLineFromPoint:top toPoint:right];

[NSBezierPath strokeLineFromPoint:top toPoint:left];

    //[NSBezierPath strokeLineFromPoint:right toPoint:left];

[NSBezierPath strokeLineFromPoint:bottom2 toPoint:bottom1];

[NSBezierPath strokeLineFromPoint:right toPoint:bottom];

[[NSColor blueColor] set];

    [[NSBezierPath bezierPathWithOvalInRect:bounds] stroke];