I want to render a big PDF image into a small thumbnail image in a custom view.
In drawRect: NSImageRep* pdfImageRep = [[pdfImage representations] lastObject]; [pdfImageRep drawInRect:thumbBounds]; This renders perfectly, however the operation is pretty costy as for using in drawRect, so I want to cache the thumbnail bitmap: NSImage* thumbnail = [[NSImage alloc] initWithSize:thumbBounds.size]; [thumbnail lockFocus]; [pdfImageRep drawInRect:NSMakeRect(0, 0, thumbBounds.size.width, thumbBounds.size.height)]; [thumbnail unlockFocus]; NSImageRep* thumbnailRep = [[thumbnail representations] lastObject]; [thumbnailRep drawAtPoint:bounds.origin]; However it appears that as soon as I get any kind of bitmap, much of the initial PDF shaprness gets lost and the thumbnail appears too blurry compared to directly rendering the PDF to the screen. It's not totally blurred, but a significant difference is noticeable. I seem to have tried all feasible methods of caching but the blur always occurs once the image becomes cached into a bitmap. I tried using both NSImage and NSImageRep to bypass caching of NSImage. I even tried - [NSBitmapImageRep initWithFocusedViewRect] to capture the image right from the screen after it first gets painted sharply, but still the thumbnail appears blurred! :-o What could be the problem? _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
