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Copyright © 1996 by Uwe Hoffmann All Rights Reserved. MiscPSView Inherits From: NSView Declared In: MiscPSView.h Class Description The MiscPSView class defines a view that will draw itself using user specified PostScript commands. Unlike a regular view, a MiscPSView view maintains a PostScript command buffer whose contents are interpreted when the view draws itself. This buffer can be modified dynamically. In this way, MiscPSView provides a class for rendering variable PostScript images. Commands in the buffer may reference the constants miscwidth and mischeight (defined in the PostScript context). These constants represent the view's dimensions. To allow for initialization before and clean-up after the drawing process, the MiscPSView class provides hooks for subclasses to overwrite: writePSPreambleInContext: and writePSPostambleInContext:. The MiscPSView class implements a cache for faster drawing. The postscript data has to be interpreted only when the cache is invalid. Instance Variables No public or protected instance variables defined in this class. Method Types Accessing and setting the postscipt data - setPostScriptData: - postscriptData Preamble and postamble hooks for subclasses - writePSPreambleIn: - writePSPostambleIn: Instance Methods postscriptData - (NSData *)postscriptData Returns the contents of the Postscript command buffer of the receiver. setPostScriptData: - (void)setPostScriptData:(NSData *)data Fills the Postscript command buffer of the receiver with the contents of data. writePSPostambleInContext: - (void)writePSPostambleInContext:(NSDPSServerContext *)aContext Cleans up Postscript environment in the context aContext. The MiscPSView implementation of this method does nothing. writePSPreambleInContext: - (void)writePSPreambleInContext:(NSDPSServerContext *)aContext Writes Postscript initialization in the context aContext. The MiscPSView implementation of this method does nothing.
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