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NSImageRep

Authors

Adam Fedor (fedor@colorado.edu)

Date: Generated at 2023-12-22 15:07:50 -0500

Abstract representation of an image.

Copyright: (C) 1996 Free Software Foundation, Inc.

Contents -

  1. Software documentation for the NSImageRep class
  2. Software documentation for the NSImageRep(GSQuartz) category

Software documentation for the NSImageRep class

NSImageRep : NSObject

Declared in:
AppKit/NSImageRep.h
Conforms to:
NSCoding
NSCopying
Availability: OpenStep

Description forthcoming.
Instance Variables

Method summary

canInitWithData: 

+ (BOOL) canInitWithData: (NSData*)data;
Availability: OpenStep

Returns NO. It is the subclass' responsibility to implement this method.

See Also:

canInitWithPasteboard: 

+ (BOOL) canInitWithPasteboard: (NSPasteboard*)pasteboard;
Availability: OpenStep

Description forthcoming.

imageFileTypes 

+ (NSArray*) imageFileTypes;
Availability: OpenStep

Returns array produced by calling -imageUnfilteredFileTypes .

imagePasteboardTypes 

+ (NSArray*) imagePasteboardTypes;
Availability: OpenStep

Description forthcoming.

imageRepClassForData: 

+ (Class) imageRepClassForData: (NSData*)data;
Availability: OpenStep

Description forthcoming.

imageRepClassForFileType: 

+ (Class) imageRepClassForFileType: (NSString*)type;
Availability: OpenStep

Description forthcoming.

imageRepClassForPasteboardType: 

+ (Class) imageRepClassForPasteboardType: (NSString*)type;
Availability: OpenStep

Description forthcoming.

imageRepWithContentsOfFile: 

+ (id) imageRepWithContentsOfFile: (NSString*)filename;
Availability: OpenStep

Returns a NSImageRep with the contents of filename.

imageRepWithContentsOfURL: 

+ (id) imageRepWithContentsOfURL: (NSURL*)anURL;
Availability: MacOS-X 10.0.0

Description forthcoming.

imageRepWithPasteboard: 

+ (id) imageRepWithPasteboard: (NSPasteboard*)pasteboard;
Availability: OpenStep

Description forthcoming.

imageRepsWithContentsOfFile: 

+ (NSArray*) imageRepsWithContentsOfFile: (NSString*)filename;
Availability: OpenStep

Returns an array of newly allocated NSImageRep objects with the contents of filename.

imageRepsWithContentsOfURL: 

+ (NSArray*) imageRepsWithContentsOfURL: (NSURL*)anURL;
Availability: MacOS-X 10.0.0

Description forthcoming.

imageRepsWithPasteboard: 

+ (NSArray*) imageRepsWithPasteboard: (NSPasteboard*)pasteboard;
Availability: OpenStep

Description forthcoming.

imageUnfilteredFileTypes 

+ (NSArray*) imageUnfilteredFileTypes;
Availability: OpenStep

Returns nil. It is the subclass' responsibility to implement this method.

See Also:

imageUnfilteredPasteboardTypes 

+ (NSArray*) imageUnfilteredPasteboardTypes;
Availability: OpenStep

Description forthcoming.

registerImageRepClass: 

+ (void) registerImageRepClass: (Class)imageRepClass;
Availability: OpenStep

Description forthcoming.

registeredImageRepClasses 

+ (NSArray*) registeredImageRepClasses;
Availability: OpenStep

Description forthcoming.

unregisterImageRepClass: 

+ (void) unregisterImageRepClass: (Class)imageRepClass;
Availability: OpenStep

Description forthcoming.

bitsPerSample 

- (NSInteger) bitsPerSample;
Availability: OpenStep

Returns the bits per sample of the receiver.

See Also:

colorSpaceName 

- (NSString*) colorSpaceName;
Availability: OpenStep

Description forthcoming.

draw 

- (BOOL) draw;
Availability: OpenStep

Primitive method which must be overridden by subclasses to perform their drawing. They should draw inside a rectangle with an origin at (0, 0) and a size equal to the receiver's size, and they should entirely fill this rectangle, overwriting the destination alpha as well.

drawAtPoint: 

- (BOOL) drawAtPoint: (NSPoint)aPoint;
Availability: OpenStep

Description forthcoming.

drawInRect: 

- (BOOL) drawInRect: (NSRect)aRect;
Availability: OpenStep

Description forthcoming.

drawInRect: fromRect: operation: fraction: respectFlipped: hints: 

- (BOOL) drawInRect: (NSRect)dstRect fromRect: (NSRect)srcRect operation: (NSCompositingOperation)op fraction: (CGFloat)delta respectFlipped: (BOOL)respectFlipped hints: (NSDictionary*)hints;
Availability: MacOS-X 10.6.0

Fallback implementation for subclasses which don't implement their own direct drawing TODO: explain how -draw , -drawInRect: , -drawAtPoint: clear their background

hasAlpha 

- (BOOL) hasAlpha;
Availability: OpenStep

Description forthcoming.

isOpaque 

- (BOOL) isOpaque;
Availability: OpenStep

Description forthcoming.

pixelsHigh 

- (NSInteger) pixelsHigh;
Availability: OpenStep

Description forthcoming.

pixelsWide 

- (NSInteger) pixelsWide;
Availability: OpenStep

Description forthcoming.

setAlpha: 

- (void) setAlpha: (BOOL)flag;
Availability: OpenStep

Description forthcoming.

setBitsPerSample: 

- (void) setBitsPerSample: (NSInteger)anInt;
Availability: OpenStep

Sets the number of bits for each component of a pixel.

See Also:

setColorSpaceName: 

- (void) setColorSpaceName: (NSString*)aString;
Availability: OpenStep

Description forthcoming.

setOpaque: 

- (void) setOpaque: (BOOL)flag;
Availability: OpenStep

Description forthcoming.

setPixelsHigh: 

- (void) setPixelsHigh: (NSInteger)anInt;
Availability: OpenStep

Description forthcoming.

setPixelsWide: 

- (void) setPixelsWide: (NSInteger)anInt;
Availability: OpenStep

Description forthcoming.

setSize: 

- (void) setSize: (NSSize)aSize;
Availability: OpenStep

Sets the size of the image to aSize.

size 

- (NSSize) size;
Availability: OpenStep

Returns the size of the image.

Instance Variables for NSImageRep Class

_bitsPerSample

@protected NSInteger _bitsPerSample;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_colorSpace

@protected NSString* _colorSpace;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_hasAlpha

@protected BOOL _hasAlpha;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_isOpaque

@protected BOOL _isOpaque;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_pixelsHigh

@protected NSInteger _pixelsHigh;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_pixelsWide

@protected NSInteger _pixelsWide;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_size

@protected NSSize _size;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.


Software documentation for the NSImageRep(GSQuartz) category

NSImageRep(GSQuartz)

Declared in:
AppKit/NSImageRep.h
Availability: OpenStep

Description forthcoming.
Method summary

CGImageForProposedRect: context: hints: 

- (CGImageRef) CGImageForProposedRect: (NSRect*)proposedDestRect context: (NSGraphicsContext*)referenceContext hints: (NSDictionary*)hints;
Availability: MacOS-X 10.6.0

Description forthcoming.

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