Re: Drawing?
Re: Drawing?
- Subject: Re: Drawing?
- From: "Steven Degutis" <email@hidden>
- Date: Sun, 12 Oct 2008 11:50:21 -0500
Your questions specifically on how to use OpenGL and CoreGraphics are too
broad to answer in the context of this email. However, neither are necessary
to draw small rectangular boxes. Have a look first of all at geometry.h, to
get a feel for NSRect structs and all you can do with them. Also look in
Xcode's documentation for NSRectFill() and have al look at other functions
on that page. Also very important to doing this is NSColor. Finally, if you
want to get fancy drawing boxes with rounded corners, have a look at
NSBezierPath. Keep in mind, none of this touches CoreGraphics or OpenGL in
the slightest. One more solution is to use a CALayer object. Using this
alone, you can create a very lightweight object with all these properties,
including the rounded borders and a background color of your choice (and
more), with all the other goodness of CoreAnimation. The good thing about
CALayer is that they don't need to be redrawn all the time, saving CPU
cycles. This is important on the iPhone. Hope this helps!
On Sun, Oct 12, 2008 at 11:36 AM, J. Todd Slack <
email@hidden> wrote:
> Hi All,
>
> I need to draw some very small rectangular boxes on screen (iphone) for a
> small play app that I am working on to gain some experience. I must say I
> have never needed to custom draw shapes, etc (except back about 5 years ago
> on Windows).
>
> Letters will go in each box.
>
> Do I use Open-GL? Core Graphics?
>
> I would appreciate thoughts and how I might accomplish this.
>
> Thanks everyone!
>
> -Jason
>
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--
Steven Degutis
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| | >Drawing? (From: "J. Todd Slack" <email@hidden>) |