Resize Window

NSWindow+Extension.m

/* NSWindow+Extension.h */
#import <Foundation/Foundation.h>

@interface NSWindow(Extension)

- (void)resizeTo:(NSSize)newSize display:(BOOL)display animated:(BOOL)animated;
- (void)resizeTo:(NSSize)newSize;

@end

/* NSWindow+Extension.m */
#import "NSWindow+Extension.h"

@implementation NSWindow(Extension)

- (void)resizeTo:(NSSize)newSize display:(BOOL)display animated:(BOOL)animated {
    CGRect oldFrame = self.frame;
    CGRect newFrame = CGRectMake(oldFrame.origin.x, oldFrame.origin.y - (newSize.height - oldFrame.size.height), newSize.width, newSize.height);
    [self setFrame:newFrame display:display animate:animated];
}

- (void)resizeTo:(NSSize)newSize {
    [self resizeTo:newSize display:YES animated:YES];
}

@end