//
//  PPDragTarget.m
//  PastePacker
//
//  Created by Daniel Grover on 11/12/07.
//  Copyright 2007 Wonder Warp Software. All rights reserved.
//

#import "PPDragTarget.h"
#import "AppController.h"


@implementation PPDragTarget

- (id)initWithFrame:(NSRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        // Register for every conceivable type (there ought to be a better way to do this).
		
		[self registerForDraggedTypes:[NSImage imagePasteboardTypes]];
		[self registerForDraggedTypes:[NSArray arrayWithObjects:NSVCardPboardType,NSURLPboardType,
									   NSTabularTextPboardType, NSStringPboardType, NSSoundPboardType, NSRulerPboardType,
									   NSRTFDPboardType, NSRTFPboardType, NSPostScriptPboardType, NSPDFPboardType,
									   NSHTMLPboardType, NSFontPboardType,NSFilenamesPboardType,
									   NSFilesPromisePboardType, NSFileContentsPboardType,
									   NSInkTextPboardType, NSColorPboardType, nil]];
    }
    return self;
}

- (void)drawRect:(NSRect)rect {
	// Draw a bullseye.
	
	// Darken it if they're in the middle of dragging something.
	NSColor *red = [NSColor redColor];
	NSColor *white = [NSColor whiteColor];
	if ([self over]){
		red = [red blendedColorWithFraction:0.3 ofColor:[NSColor blackColor]];
		white = [white blendedColorWithFraction:0.3 ofColor:[NSColor blackColor]];
	}
	
	float dim = MIN([self bounds].size.height, [self bounds].size.width)/12;
	
	int i;
	for (i = 12; i >= 0; i--){
		float width = dim * i;
		[(((i % 2) == 0) ? red : white) set];
		[[NSBezierPath bezierPathWithOvalInRect:NSMakeRect([self bounds].size.width/2 - (width/2), 
																			[self bounds].origin.y + [self bounds].size.height/2 - (width/2),
																			width,width)] fill];
	}
	
}

- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender
{
    return YES;
}

- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
	return YES;
}

- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender 
{
	[self setOver:YES];
	return NSDragOperationCopy;
}


- (void)concludeDragOperation:(id <NSDraggingInfo>)sender
{
	[AppController docFromPasteboard:[sender draggingPasteboard]];
	[self setOver:NO];
}

- (void)draggingExited:(id <NSDraggingInfo>)sender
{
	[self setOver:NO];
}

- (BOOL) over{
	return over;
}

- (void) setOver:(BOOL)n{
	over = n;
	[self setNeedsDisplay:YES];
}

@end