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<?xml version="1.0"?>
<!DOCTYPE gsdoc PUBLIC "-//GNUstep//DTD gsdoc 1.0.4//EN" "http://www.gnustep.org/gsdoc-1_0_4.dtd">
<gsdoc base="NSImageRep" up="Gui">
<head>
<title>NSImageRep</title>
<author name="Adam Fedor">
<email address="fedor@colorado.edu">
fedor@colorado.edu
</email>
</author>
<abstract>
Abstract representation of an image.
</abstract>
<copy>1996 Free Software Foundation, Inc.</copy>
</head>
<body>
<front><contents /></front>
<chapter>
<heading>
Software documentation for the NSImageRep class
</heading>
<class name="NSImageRep" super="NSObject" ovadd="1.0.0">
<declared>AppKit/NSImageRep.h</declared>
<conform>NSCoding</conform>
<conform>NSCopying</conform>
<desc>
<em>Description forthcoming.</em>
</desc>
<ivariable type="NSInteger" name="_bitsPerSample" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSString*" name="_colorSpace" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="BOOL" name="_hasAlpha" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="BOOL" name="_isOpaque" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSInteger" name="_pixelsHigh" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSInteger" name="_pixelsWide" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSSize" name="_size" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<method type="BOOL" factory="yes" ovadd="1.0.0">
<sel>canInitWithData:</sel>
<arg type="NSData*">data</arg>
<desc>
Returns <code>NO</code>. It is the subclass'
responsibility to implement this method.
<p>
See Also:
</p>
<list>
<item>
<ref type="method" id="+canInitWithData:" class="NSBitmapImageRep">[NSBitmapImageRep +canInitWithData:]</ref>
</item>
</list>
</desc>
</method>
<method type="BOOL" factory="yes" ovadd="1.0.0">
<sel>canInitWithPasteboard:</sel>
<arg type="NSPasteboard*">pasteboard</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imageFileTypes</sel>
<desc>
Returns array produced by calling
<ref type="method" id="-imageUnfilteredFileTypes">
-imageUnfilteredFileTypes
</ref>
.
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imagePasteboardTypes</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="Class" factory="yes" ovadd="1.0.0">
<sel>imageRepClassForData:</sel>
<arg type="NSData*">data</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="Class" factory="yes" ovadd="1.0.0">
<sel>imageRepClassForFileType:</sel>
<arg type="NSString*">type</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="Class" factory="yes" ovadd="1.0.0">
<sel>imageRepClassForPasteboardType:</sel>
<arg type="NSString*">type</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="id" factory="yes" ovadd="1.0.0">
<sel>imageRepWithContentsOfFile:</sel>
<arg type="NSString*">filename</arg>
<desc>
Returns a NSImageRep with the contents of
<var>filename</var>.
</desc>
</method>
<method type="id" factory="yes" ovadd="10.0.0">
<sel>imageRepWithContentsOfURL:</sel>
<arg type="NSURL*">anURL</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="id" factory="yes" ovadd="1.0.0">
<sel>imageRepWithPasteboard:</sel>
<arg type="NSPasteboard*">pasteboard</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imageRepsWithContentsOfFile:</sel>
<arg type="NSString*">filename</arg>
<desc>
Returns an array of newly allocated NSImageRep
objects with the contents of <var>filename</var>.
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="10.0.0">
<sel>imageRepsWithContentsOfURL:</sel>
<arg type="NSURL*">anURL</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imageRepsWithPasteboard:</sel>
<arg type="NSPasteboard*">pasteboard</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imageUnfilteredFileTypes</sel>
<desc>
Returns <code>nil</code>. It is the subclass'
responsibility to implement this method.
<p>
See Also:
</p>
<list>
<item>
<ref type="method" id="+imageUnfilteredFileTypes" class="NSBitmapImageRep">[NSBitmapImageRep +imageUnfilteredFileTypes]</ref>
</item>
</list>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>imageUnfilteredPasteboardTypes</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" factory="yes" ovadd="1.0.0">
<sel>registerImageRepClass:</sel>
<arg type="Class">imageRepClass</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSArray*" factory="yes" ovadd="1.0.0">
<sel>registeredImageRepClasses</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" factory="yes" ovadd="1.0.0">
<sel>unregisterImageRepClass:</sel>
<arg type="Class">imageRepClass</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSInteger" ovadd="1.0.0">
<sel>bitsPerSample</sel>
<desc>
Returns the bits per sample of the receiver.
<p>
See Also:
</p>
<list>
<item>
<ref type="method" id="-setBitsPerSample:">
-setBitsPerSample:
</ref>
</item>
</list>
</desc>
</method>
<method type="NSString*" ovadd="1.0.0">
<sel>colorSpaceName</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="BOOL" ovadd="1.0.0">
<sel>draw</sel>
<desc>
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.
</desc>
</method>
<method type="BOOL" ovadd="1.0.0">
<sel>drawAtPoint:</sel>
<arg type="NSPoint">aPoint</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="BOOL" ovadd="1.0.0">
<sel>drawInRect:</sel>
<arg type="NSRect">aRect</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="BOOL" ovadd="10.6.0">
<sel>drawInRect:</sel>
<arg type="NSRect">dstRect</arg>
<sel>fromRect:</sel>
<arg type="NSRect">srcRect</arg>
<sel>operation:</sel>
<arg type="NSCompositingOperation">op</arg>
<sel>fraction:</sel>
<arg type="CGFloat">delta</arg>
<sel>respectFlipped:</sel>
<arg type="BOOL">respectFlipped</arg>
<sel>hints:</sel>
<arg type="NSDictionary*">hints</arg>
<desc>
Fallback implementation for subclasses which don't
implement their own direct drawing TODO: explain
how <ref type="method" id="-draw">-draw</ref>,
<ref type="method" id="-drawInRect:">
-drawInRect:
</ref>
,
<ref type="method" id="-drawAtPoint:">
-drawAtPoint:
</ref>
clear their background
</desc>
</method>
<method type="BOOL" ovadd="1.0.0">
<sel>hasAlpha</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="BOOL" ovadd="1.0.0">
<sel>isOpaque</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSInteger" ovadd="1.0.0">
<sel>pixelsHigh</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSInteger" ovadd="1.0.0">
<sel>pixelsWide</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setAlpha:</sel>
<arg type="BOOL">flag</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setBitsPerSample:</sel>
<arg type="NSInteger">anInt</arg>
<desc>
Sets the number of bits for each component of a pixel.
<p>
See Also:
</p>
<list>
<item>
<ref type="method" id="-bitsPerSample">
-bitsPerSample
</ref>
</item>
</list>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setColorSpaceName:</sel>
<arg type="NSString*">aString</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setOpaque:</sel>
<arg type="BOOL">flag</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setPixelsHigh:</sel>
<arg type="NSInteger">anInt</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setPixelsWide:</sel>
<arg type="NSInteger">anInt</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setSize:</sel>
<arg type="NSSize">aSize</arg>
<desc>
Sets the size of the image to <var>aSize</var>.
</desc>
</method>
<method type="NSSize" ovadd="1.0.0">
<sel>size</sel>
<desc>
Returns the size of the image.
</desc>
</method>
</class>
</chapter>
<chapter>
<heading>
Software documentation for the NSImageRep(GSQuartz)
category
</heading>
<category name="GSQuartz" class="NSImageRep" ovadd="1.0.0">
<declared>AppKit/NSImageRep.h</declared>
<desc>
<em>Description forthcoming.</em>
</desc>
<method type="CGImageRef" ovadd="10.6.0">
<sel>CGImageForProposedRect:</sel>
<arg type="NSRect*">proposedDestRect</arg>
<sel>context:</sel>
<arg type="NSGraphicsContext*">referenceContext</arg>
<sel>hints:</sel>
<arg type="NSDictionary*">hints</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
</category>
</chapter>
</body>
</gsdoc>
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