To echo Graham’s point, you can also use the CALayer of the label and modify
its properties to get a more customized appearance. You’ve got shadowColor,
shadowOffset, shadowOpacity, shadowPath, and shadowRadius. Between those
properties and the label’s built-in shadow support, there’s a lot of
customization to be had.
Jeff Kelley
On Tue, Jul 12, 2011 at 6:22 AM, Graham Cox <graham....@bigpond.com> wrote:
> AFAIK, you don't have to subclass UILabel - it has a shadowColor/offset
> property that you can set as you wish, and it should all "just work". Sure,
> the default values are sometimes a bit questionable, but all you need to do
> is to set those shadow properties in IB or in code.
>
> You're doing way too much work, and breaking something in the process. I
> don't see anything in your code that adds anything to what you can do with
> the view's standard properties. Also, I found that things such as shadow
> blur radius aren't necessarily well supported in iOS, which probably doesn't
> have the processing power to do that very well - even on Mac shadows kill
> performance.
>
> --Graham
>
>
> On 12/07/2011, at 4:49 PM, Development wrote:
>
> > Among the myriad of problems I'm having with this application a new one
> developed when I began adding a shadow to text.
> > The default text shadows look terrible on iPhone. This I subclassed
> UILabel and did an override of drawTextInRect
> >
> > Well in order to draw with the correct colors I have had to do all my
> custom stuff and then call [super drawTextInRect:rect];
> >
> > It all works until an Italic font is used. Then the last maybe 5 pixel
> are cut out of the text. I've attempted to adjust both the bounding box of
> the parent view and the subclassed label both, and it does not seem to
> change the views at all. So I'm not entirely sure how but I'm screwing up
> adjusting a rectangle… (Hoiw hard is it to add 6 pixels to width of a darn
> rect?)
> > Anyway. So I attempted to use a string drawing method, which would among
> other things allow me to set the alignment. This works, until I click the
> text (which selects it) And it also fails to draw in the correct color.
> (Always black instead of whatever it should be)
> >
> > Is string drawing possible if I want color? I need to override to get
> nice shadows but it creates this nightmare.
> >
> > CGSize myShadowOffset = self.offset;
> > float myColorValues[] = {0, 0, 0, self.depth};
> >
> > CGContextRef myContext = UIGraphicsGetCurrentContext();
> > CGContextSaveGState(myContext);
> >
> > CGColorSpaceRef myColorSpace = CGColorSpaceCreateDeviceRGB();
> > CGColorRef myColor = CGColorCreate(myColorSpace, myColorValues);
> > CGContextSetShadowWithColor (myContext, myShadowOffset, self.spread,
> myColor);
> >
> > CGSize newSize = rect.size;
> > CGSize imgSize = [self.text sizeWithFont:self.font];
> > imgSize.width +=6; //this does nothing
> > //everything below adjusts for the shadow which is a flipping train
> wreck of its own.
> > CGPoint p;
> > CGFloat x=0.0,y=spread;
> >
> > if (myShadowOffset.width <=0) {
> > x =((newSize.width -
> (imgSize.width+(spread*2)))/2)+abs(myShadowOffset.width);
> > }
> > else if(myShadowOffset.width >0){
> > x =0;
> > }
> > p = CGPointMake(x, y);
> >
> > rect.origin = p;
> > rect.size = imgSize;
> >
> > [super drawTextInRect:rect];
> >
> > CGColorRelease(myColor);
> > CGColorSpaceRelease(myColorSpace);
> >
> > CGContextRestoreGState(myContext);
>
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