mirror of
https://github.com/gnustep/libs-gui.git
synced 2025-04-23 15:11:37 +00:00
Corrected some methods on this class so that subclasses may use
them. Moved all the class methods to the front of the file. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@10113 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Fred Kiefer
parent
5cf3aef11e
commit
3b035626b2
1 changed files with 200 additions and 179 deletions
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@ -44,7 +44,8 @@
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#include <AppKit/NSColor.h>
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#include <AppKit/DPSOperators.h>
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static NSMutableArray* imageReps = NULL;
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static NSMutableArray *imageReps = nil;
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static Class NSImageRep_class = NULL;
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@implementation NSImageRep
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@ -55,6 +56,8 @@ static NSMutableArray* imageReps = NULL;
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if (self == [NSImageRep class])
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{
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id obj;
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NSImageRep_class = self;
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imageReps = [[NSMutableArray alloc] initWithCapacity: 2];
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obj = [[NSUserDefaults standardUserDefaults]
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stringForKey: @"ImageCompositing"];
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@ -64,6 +67,89 @@ static NSMutableArray* imageReps = NULL;
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}
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}
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// Managing NSImageRep Subclasses
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+ (Class) imageRepClassForData: (NSData *)data
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{
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int i, count;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([rep canInitWithData: data])
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return rep;
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}
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return Nil;
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}
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+ (Class) imageRepClassForFileType: (NSString *)type
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{
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int i, count;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imageFileTypes] indexOfObject: type] != NSNotFound)
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{
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return rep;
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}
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}
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return Nil;
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}
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+ (Class) imageRepClassForPasteboardType: (NSString *)type
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{
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int i, count;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imagePasteboardTypes] indexOfObject: type] != NSNotFound)
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{
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return rep;
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}
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}
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return Nil;
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}
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+ (void) registerImageRepClass: (Class)imageRepClass
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{
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if ([imageReps containsObject: imageRepClass] == NO)
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{
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Class c = imageRepClass;
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while (c != nil && c != [NSObject class] && c != [NSImageRep class])
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{
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c = [c superclass];
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}
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if (c != [NSImageRep class])
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{
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[NSException raise: NSInvalidArgumentException
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format: @"Attempt to register non-imagerep class"];
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}
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[imageReps addObject: imageRepClass];
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}
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[[NSNotificationCenter defaultCenter]
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postNotificationName: NSImageRepRegistryChangedNotification
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object: self];
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}
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+ (NSArray *) registeredImageRepClasses
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{
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return (NSArray *)imageReps;
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}
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+ (void) unregisterImageRepClass: (Class)imageRepClass
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{
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[imageReps removeObject: imageRepClass];
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[[NSNotificationCenter defaultCenter]
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postNotificationName: NSImageRepRegistryChangedNotification
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object: self];
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}
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// Creating an NSImageRep
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+ (id) imageRepWithContentsOfFile: (NSString *)filename
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{
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@ -77,46 +163,91 @@ static NSMutableArray* imageReps = NULL;
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+ (NSArray *) imageRepsWithContentsOfFile: (NSString *)filename
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{
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int i, count;
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NSString *ext;
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NSMutableArray *array;
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Class rep;
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// Is the file extension already the file type?
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ext = [filename pathExtension];
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// FIXME: Should this be an exception? Should we even check this?
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if (!ext)
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{
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NSLog(@"Extension missing from filename - '%@'", filename);
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// FIXME: Should this be an exception?
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NSLog(@"Extension missing from image filename - '%@'", filename);
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return nil;
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}
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array = [NSMutableArray arrayWithCapacity: 1];
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count = [imageReps count];
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for (i = 0; i < count; i++)
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if (self == NSImageRep_class)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imageFileTypes] indexOfObject: ext] != NSNotFound)
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{
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// This is some GNUstep extension for special file types
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if ([rep respondsToSelector: @selector(imageRepsWithFile:)])
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[array addObjectsFromArray: [rep imageRepsWithFile: filename]];
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else
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{
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NSData* data;
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rep = [self imageRepClassForFileType: ext];
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}
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else if ([[self imageFileTypes] containsObject: ext])
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{
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rep = self;
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}
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else
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return nil;
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data = [NSData dataWithContentsOfFile: filename];
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if ([rep respondsToSelector: @selector(imageRepsWithData:)])
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[array addObjectsFromArray: [rep imageRepsWithData: data]];
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else if ([rep respondsToSelector: @selector(imageRepWithData:)])
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{
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NSImageRep *imageRep = [rep imageRepWithData: data];
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if (rep != nil)
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[array addObject: imageRep];
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}
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}
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// This is a GNUstep extension for special file types
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if ([rep respondsToSelector: @selector(imageRepsWithFile:)])
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return [rep imageRepsWithFile: filename];
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else
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{
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NSData* data;
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data = [NSData dataWithContentsOfFile: filename];
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if ([rep respondsToSelector: @selector(imageRepsWithData:)])
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return [rep imageRepsWithData: data];
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else if ([rep respondsToSelector: @selector(imageRepWithData:)])
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{
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NSImageRep *imageRep = [rep imageRepWithData: data];
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if (imageRep != nil)
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return [NSArray arrayWithObject: imageRep];
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}
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}
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return (NSArray *)array;
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return nil;
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}
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+ (id)imageRepWithContentsOfURL:(NSURL *)anURL
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{
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NSArray* array;
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array = [self imageRepsWithContentsOfURL: anURL];
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if ([array count])
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return [array objectAtIndex: 0];
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return nil;
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}
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+ (NSArray *)imageRepsWithContentsOfURL:(NSURL *)anURL
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{
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Class rep;
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NSData* data;
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// FIXME: Should we use the file type for URLs or only check the data?
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data = [anURL resourceDataUsingCache: YES];
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if (self == NSImageRep_class)
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{
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rep = [self imageRepClassForData: data];
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}
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else if ([self canInitWithData: data])
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{
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rep = self;
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}
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else
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return nil;
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if ([rep respondsToSelector: @selector(imageRepsWithData:)])
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return [rep imageRepsWithData: data];
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else if ([rep respondsToSelector: @selector(imageRepWithData:)])
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{
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NSImageRep *imageRep = [rep imageRepWithData: data];
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if (imageRep != nil)
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return [NSArray arrayWithObject: imageRep];
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}
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return nil;
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}
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+ (id) imageRepWithPasteboard: (NSPasteboard *)pasteboard
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@ -133,14 +264,24 @@ static NSMutableArray* imageReps = NULL;
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{
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int i, count;
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NSMutableArray* array;
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NSArray *reps;
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if (self == NSImageRep_class)
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{
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reps = imageReps;
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}
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else
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{
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reps = [NSArray arrayWithObject: self];
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}
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array = [NSMutableArray arrayWithCapacity: 1];
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count = [imageReps count];
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count = [reps count];
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for (i = 0; i < count; i++)
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{
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NSString* ptype;
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Class rep = [imageReps objectAtIndex: i];
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Class rep = [reps objectAtIndex: i];
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ptype = [pasteboard availableTypeFromArray: [rep imagePasteboardTypes]];
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if (ptype != nil)
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@ -158,72 +299,13 @@ static NSMutableArray* imageReps = NULL;
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}
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}
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}
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if ([array count] == 0)
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return nil;
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return (NSArray *)array;
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}
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+ (id)imageRepWithContentsOfURL:(NSURL *)anURL
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{
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NSArray* array;
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array = [self imageRepsWithContentsOfURL: anURL];
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if ([array count])
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return [array objectAtIndex: 0];
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return nil;
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}
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+ (NSArray *)imageRepsWithContentsOfURL:(NSURL *)anURL
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{
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int i, count;
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NSString *ext;
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NSMutableArray *array;
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ext = [[anURL path] pathExtension];
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// FIXME: Should this be an exception? Should we even check this?
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if (!ext)
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{
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NSLog(@"Extension missing from URL - '%@'", [anURL path]);
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return nil;
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}
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array = [NSMutableArray arrayWithCapacity: 1];
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imageFileTypes] indexOfObject: ext] != NSNotFound)
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{
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NSData* data;
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data = [anURL resourceDataUsingCache: YES];
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if ([rep respondsToSelector: @selector(imageRepsWithData:)])
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[array addObjectsFromArray: [rep imageRepsWithData: data]];
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else if ([rep respondsToSelector: @selector(imageRepWithData:)])
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{
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NSImageRep *imageRep = [rep imageRepWithData: data];
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if (rep != nil)
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[array addObject: imageRep];
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}
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}
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}
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return (NSArray *)array;
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}
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- (id) copyWithZone: (NSZone *)zone
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{
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NSImageRep *copy;
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copy = (NSImageRep*)NSCopyObject(self, 0, zone);
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copy->_colorSpace = RETAIN(_colorSpace);
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return copy;
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}
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- (void) dealloc
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{
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RELEASE(_colorSpace);
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[super dealloc];
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}
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// Checking Data Types
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+ (BOOL) canInitWithData: (NSData *)data
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@ -234,20 +316,22 @@ static NSMutableArray* imageReps = NULL;
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+ (BOOL) canInitWithPasteboard: (NSPasteboard *)pasteboard
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{
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/* Subclass responsibility */
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return NO;
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NSArray *pbTypes = [pasteboard types];
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NSArray *myTypes = [self imageUnfilteredPasteboardTypes];
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return ([pbTypes firstObjectCommonWithArray: myTypes] != nil);
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}
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+ (NSArray *) imageFileTypes
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{
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/* Subclass responsibility */
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return nil;
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// FIXME: We should check what conversions are defined by services.
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return [self imageUnfilteredFileTypes];
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}
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+ (NSArray *) imagePasteboardTypes
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{
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/* Subclass responsibility */
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return nil;
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// FIXME: We should check what conversions are defined by services.
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return [self imageUnfilteredPasteboardTypes];
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}
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+ (NSArray *) imageUnfilteredFileTypes
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@ -262,6 +346,14 @@ static NSMutableArray* imageReps = NULL;
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return nil;
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}
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// Instance methods
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- (void) dealloc
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{
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RELEASE(_colorSpace);
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[super dealloc];
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}
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// Setting the Size of the Image
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- (void) setSize: (NSSize)aSize
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{
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@ -337,7 +429,8 @@ static NSMutableArray* imageReps = NULL;
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// Drawing the Image
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- (BOOL) draw
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{
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return YES; /* Subclass should implement this. */
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/* Subclass should implement this. */
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return YES;
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}
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- (BOOL) drawAtPoint: (NSPoint)aPoint
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@ -389,87 +482,15 @@ static NSMutableArray* imageReps = NULL;
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return ok;
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}
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// Managing NSImageRep Subclasses
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+ (Class) imageRepClassForData: (NSData *)data
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// NSCopying protocol
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- (id) copyWithZone: (NSZone *)zone
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{
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int i, count;
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NSImageRep *copy;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([rep canInitWithData: data])
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return rep;
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}
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return Nil;
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}
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copy = (NSImageRep*)NSCopyObject(self, 0, zone);
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copy->_colorSpace = RETAIN(_colorSpace);
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+ (Class) imageRepClassForFileType: (NSString *)type
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{
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int i, count;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imageFileTypes] indexOfObject: type] != NSNotFound)
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{
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return rep;
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}
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}
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return Nil;
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}
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+ (Class) imageRepClassForPasteboardType: (NSString *)type
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{
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int i, count;
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count = [imageReps count];
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for (i = 0; i < count; i++)
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{
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Class rep = [imageReps objectAtIndex: i];
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if ([[rep imagePasteboardTypes] indexOfObject: type] != NSNotFound)
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{
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return rep;
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}
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}
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return Nil;
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}
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+ (void) registerImageRepClass: (Class)imageRepClass
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{
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if ([imageReps containsObject: imageRepClass] == NO)
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{
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Class c = imageRepClass;
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while (c != nil && c != [NSObject class] && c != [NSImageRep class])
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{
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c = [c superclass];
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}
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if (c != [NSImageRep class])
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{
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[NSException raise: NSInvalidArgumentException
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format: @"Attempt to register non-imagerep class"];
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}
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[imageReps addObject: imageRepClass];
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}
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[[NSNotificationCenter defaultCenter]
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postNotificationName: NSImageRepRegistryChangedNotification
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object: self];
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}
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+ (NSArray *) registeredImageRepClasses
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{
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return (NSArray *)imageReps;
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}
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+ (void) unregisterImageRepClass: (Class)imageRepClass
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{
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[imageReps removeObject: imageRepClass];
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[[NSNotificationCenter defaultCenter]
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postNotificationName: NSImageRepRegistryChangedNotification
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object: self];
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return copy;
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}
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// NSCoding protocol
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