Re: Animation and crossfading of windows

Subject: Re: Animation and crossfading of windows
From: Oskar Lissheim-Boethius <email@hidden>
Date: Sat, 31 Jul 2004 21:10:33 +0200

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On 2004-07-31, at 20.04, Shaun Wexler wrote:

NSWindow can animate its frame changes, and you can register for notifications to be received at every redraw. Cache a NSImage of the before- and after- content views, and during an animated resize in -drawRect: simply dissolve between them using a fraction based on the before/after frame size ratio, rather than drawing the actual window content. Notice that the System Preferences window is a fixed width, and as each new pane fades in, it stays attached to the window origin in the bottom left when animating the frame... simple? ;)

Yeah, pretty simple. Thanks to you and Scott for pointing out the OpenGL and NSImage solutions. I guess OpenGL would be faster among the two (at least until Tiger and CoreImage arrives *drooling* ).

Yours sincerely,

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O S K A R L I S S H E I M - B O E T H I U S
Composer, Sound & Webdesigner
Kingdom of Sweden
Home: www.avocade.com

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