Objective-C View Frame Methods

Util.Frame.m

void setFrame(UIView* view, NSNumber* x, NSNumber* y, NSNumber* w, NSNumber* h)
{
    CGRect f = view.frame;

    if( x ) f.origin.x = x.floatValue;
    if( y ) f.origin.y = y.floatValue;
    if( w ) f.size.width = w.floatValue;
    if( h ) f.size.height = h.floatValue;
    
    view.frame = f;
}

void setFrameX(UIView* view, float x){ setFrame(view, [NSNumber numberWithFloat:x], nil, nil, nil); }
void setFrameY(UIView* view, float y){ setFrame(view, nil, [NSNumber numberWithFloat:y], nil, nil); }
void setFrameW(UIView* view, float w){ setFrame(view, nil, nil, [NSNumber numberWithFloat:w], nil); }
void setFrameH(UIView* view, float h){ setFrame(view, nil, nil, nil, [NSNumber numberWithFloat:h]); }

CGRect adjustFrame(CGRect f, float x, float y, float w, float h)
{
    if( x ) f.origin.x = f.origin.x + x;
    if( y ) f.origin.y = f.origin.y + y;
    if( w ) f.size.width = f.size.width + w;
    if( h ) f.size.height = f.size.height + h;
    
    return f;
}

void adjustFrame(UIView* view, float x, float y, float w, float h)
{
    view.frame = adjustFrame(view.frame, x, y, w, h);
}