NSPICTImageRep Class Reference
| Inherits from | |
| Conforms to | |
| Framework | /System/Library/Frameworks/AppKit.framework |
| Availability | Available in Mac OS X v10.0 and later. |
| Companion guide | |
| Declared in | NSPICTImageRep.h |
| Related sample code |
Overview
An NSPICTImageRep object renders an image from a PICT format data stream as described in the Carbon QuickDraw Manager documentation. This class can render PICT format version 1, version 2, and extended version 2 pictures.
Warning: There is no guarantee that the image will render exactly the same as it would under QuickDraw because of the differences between the display medium and QuickDraw. In particular, some transfer modes and region operations may not be supported.
Tasks
Creating an NSPICTImageRep
Getting Image Data
Class Methods
imageRepWithData:
Creates and returns an NSPICTImageRep object initialized with the specified data.
+ (id)imageRepWithData:(NSData *)pictData
Parameters
- pictData
A data object containing the PICT data.
Return Value
An initialized NSPICTImageRep or nil if the object could not be initialized. Initialization may fail if the data does not conform to the PICT file format.
Availability
- Available in Mac OS X v10.0 and later.
See Also
Related Sample Code
Declared In
NSPICTImageRep.hInstance Methods
boundingBox
Returns the rectangle that bounds the receiver.
- (NSRect)boundingBox
Return Value
The rectangle bounding the receiver. This rectangle is obtained from the the picFrame field in the picture header. See the Carbon QuickDraw Manager documentation for information on the picture header
Availability
- Available in Mac OS X v10.0 and later.
Declared In
NSPICTImageRep.h
initWithData:
Returns an NSPICTImageRep object initialized with the specified data.
- (id)initWithData:(NSData *)pictData
Parameters
- pictData
A data object containing the PICT data.
Return Value
An initialized NSPICTImageRep or nil if the object could not be initialized. Initialization may fail if the data does not conform to the PICT file format.
Discussion
If the PICT data is obtained directly from a PICT file or document, this method ignores most of the 512-byte header that occurs before the start of the actual picture data. It may retrieve some relevant meta information from the header.
Availability
- Available in Mac OS X v10.0 and later.
See Also
Declared In
NSPICTImageRep.h
PICTRepresentation
Returns the receiver's PICT data.
- (NSData *)PICTRepresentation
Return Value
A data object containing the PICT data. The returned data does not include the 512-byte header, if it was present in the original data. If you want to write the returned data to a file, you must precede it with a 512-byte header (containing all zeros) if you want to conform to the PICT document format.
Availability
- Available in Mac OS X v10.0 and later.
Declared In
NSPICTImageRep.h
© 2007 Apple Inc. All Rights Reserved. (Last updated: 2007-01-26)