Here's a simple method for resizing. I made it a category of NSImage.
- (NSImage *)resizedImageForSize:(NSSize)size
{
NSImage *resizedImage = [[[NSImage alloc] initWithSize:size] autorelease];
[resizedImage lockFocus];
[self drawInRect:[resizedImage bounds] fromRect:[self bounds]
operation:NSCompositeSourceOver fraction:1.0];
[resizedImage unlockFocus];
return resizedImage;
}
--- On Thu, 12/11/08, Glenn Bloom <grb...@gmail.com> wrote:
> From: Glenn Bloom <grb...@gmail.com>
> Subject: Resizing an image
> To: cocoa-dev@lists.apple.com
> Date: Thursday, December 11, 2008, 5:43 AM
> Can anyone recommend a best practice for resizing an image
> to reduce its
> size in terms of both bytes and visible dimensions,
> retaining the new
> smaller image and eliminating the original from memory? In
> how I go about
> this now, I am concerned about memory and efficiency.
>
> thanks in advance for any help,
>
> Glenn
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