#include <Foundation/NSAutoreleasePool.h>
#include <AppKit/NSApplication.h>
#include <AppKit/NSImage.h>
#include <AppKit/NSCustomImageRep.h>

@interface Foo : NSObject
+(void) draw;
@end
@implementation Foo
+(void) draw
{
	printf("%@ asked to draw\n",self);
}
@end


void dump_reps(NSImage *img)
{
	NSArray *reps=[img representations];
	int i;

	for (i=0;i<[reps count];i++)
	{
		printf("rep %2i: %@\n",i,[reps objectAtIndex: i]);
	}
	printf("total: %3i representations\n",[reps count]);
}


int main(int argc, char **argv)
{
	NSAutoreleasePool *arp=[NSAutoreleasePool new];
	NSImage *i;
	NSCustomImageRep *customRep;

	[NSApplication sharedApplication];

	i=[[NSImage alloc] init];
	[i setSize: NSMakeSize(64,64)];
	printf("\n* clean NSImage\n");
	dump_reps(i);

	customRep=[[NSCustomImageRep alloc]
		initWithDrawSelector: @selector(draw)
		delegate: [Foo self]];
	[i addRepresentation: customRep];
	printf("\n* with custom image rep\n");
	dump_reps(i);

	{
		NSImage *dummy=[[NSImage alloc] init];
		[dummy setSize: NSMakeSize(64,64)];
		[dummy lockFocus];
		[i compositeToPoint: NSMakePoint(0,0)
			operation: NSCompositeSourceOver];
		[dummy unlockFocus];
		[dummy release];
	}
	printf("\n* after drawing\n");
	dump_reps(i);

	[arp release];

	return 0;
}