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paperh18648 margl-907 margr0 margt0 margb0 fi0 ri0 ql sb0 f1 fs24 Copyright f3 'e3f1 1994 by NeXT Computer, Inc. All Rights Reserved.
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fs36 NSEPSImageRep
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fs28 f0 b fs24 Inherits From:tab b0 fs28 f1 NSImageRep : NSObject
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fs28 s7 f0 b fs24 Conforms To:tab b0 fs28 f1 NSCoding, NSCopying (NSImageRep)
fi0 NSObject (NSObject)
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fs28 s8 fi-2771 f0 b fs24 Declared In:tab b0 fs28 f1 AppKit/NSEPSImageRep.h
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fs28 Class Description
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fs28 An NSEPSImageRep is an object that can render an image from encapsulated PostScript code (EPS).
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fs28 Like most other kinds of NSImageReps, an NSEPSImageRep is generally used indirectly, through an NSImage object. An NSImage must be able to choose between various representations of a given image. It also needs to provide an off-screen cache of the appropriate depth for any image it uses. It determines this information by querying its NSImageReps.
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fs28 Thus to work with an NSImage, an NSEPSImageRep must be able to provide some information about its image. The size of the object is set from the bounding box specified in the EPS header comments. Use these methods, inherited from the NSImageRep class, to set the other attributes of the NSEPSImageRep:
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fs28 pard s20 li854 fi0 ri1007 ql tx4509 tx10180 setColorSpaceName:
fi0 setAlpha:
fi0 setPixelsHigh:
fi0 setPixelsWide:
fi0 setBitsPerSample:
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fs28 Initializing a New Instance
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fs28 fi-6552 + (id)b imageRepWithDatab0 :(NSData *)i epsDatatab i0 Invokes b initWithData:b0 to return an instance with data from i epsDatai0 .
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fs28 fi-6552 {f3 -} (id)b initWithData:b0 (NSData *)i epsDatai0 tab Initialize an instance with data from i epsDatai0 .
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fs28 Getting Image Data
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fs28 fi-6552 {f3 -} (NSRect)b boundingBoxb0 tab Returns the rectangle that bounds the image.
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fs28 fi-6552 {f3 -} (NSData *)b EPSRepresentationb0 tab Returns the EPS representation of the image.
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fs28 Drawing the Image
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fs28 fi-6552 {f3 -} (void)b prepareGStateb0 tab Implemented by subclasses to initialize the graphics state before the image is drawn.
}These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.