Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Rendering HTML into CGBitmapContextRef




On May 20, 2005, at 1:25 PM, Scott Thompson wrote:


On May 20, 2005, at 1:06 PM, Mark Morrill wrote:


Hi all,

I've looked and I've come up with nothing... yet. Often, the answer will appear after posting to a list :) For example, after starting writing this post, I found "HTML Rendering Library". This looks like it will let me render into a offscreen gworld but, I'd rather skip that step.

What I want to do is to take a bit of html and render it into a CGBitmapContextRef (or CGContextRef for that matter.)

Am I stuck working with HTML Rendering Library?


Your best best is probably to use a WebView. All NSViews implement dataWithPDFInsideRect: which can return a PDF document for whatever is drawn in that view. You could then draw that PDF into your BitmapContextRef.

In Tiger, you can use the poorly named method

+ (NSGraphicsContext *)graphicsContextWithGraphicsPort:(void *) graphicsPort flipped:(BOOL)initialFlippedState;

followed by

  + (void)setCurrentContext:(NSGraphicsContext *)context;

to create and draw into an NSGraphicsContext backed by an arbitrary CGContextRef. This avoids the step of creating PDF just to re-render to your bitmap context. See NSGraphicsContext.h for more details.

Derek

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartz-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartz-dev/email@hidden

This email sent to email@hidden
References: 
 >Rendering HTML into CGBitmapContextRef (From: Mark Morrill <email@hidden>)
 >Re: Rendering HTML into CGBitmapContextRef (From: Scott Thompson <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.