Re: Screensaver
Re: Screensaver
- Subject: Re: Screensaver
- From: Scott Ellsworth <email@hidden>
- Date: Fri, 20 Jan 2006 15:25:16 -0800
On Jan 20, 2006, at 3:11 PM, Michael Curtis wrote:
I have always wanted to make a screensaver for os x that replicated
the After Dark screensaver module that allowed you to put up your
own quotes. I have been learning some objective-c and cocoa with
the help of some books (Programming in Objective-c and Cocoa
programming for Mac OS X), but I can't seem to find much at all on
screensavers.
If you have those books, you have what you need.
Start with a new Cocoa screen saver project in XCode.
You then need to implement the ScreenSaverView class' methods. The
most important methods are drawRect:, much like any other NSView, and
animateOneFrame:
Take a look at the Hillegas book's discussion on BigLetterView for
the kinds of things you can do in drawRect. Once you get some
content on the screen, look at the docs for animateOneFrame: for how
to get motion.
I believe that there is an alternative now, in that Quartz Composer
can do much with animated strings on the screen, all by just setting
propreties rather than writing code. If you can use a quartz
composer view as a screensaver, you might be very close to done.
ScreenSaverView is documented at <http://developer.apple.com/
documentation/UserExperience/Reference/ScreenSaver/ObjC_classic/
index.html>
Scott
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| References: | |
| | >Screensaver (From: Michael Curtis <email@hidden>) |