ResKnife/Cocoa/Classes/ResourceNameCell.m

#import "ResourceNameCell.h"

@implementation ResourceNameCell

- (id)init
{
	self = [super init];
	if( self )
	{
		drawImage = YES;
	}
	return self;
}

- (void)dealloc
{
	[image release];
	[super dealloc];
}

- copyWithZone:(NSZone *)zone
{
	ResourceNameCell *cell = (ResourceNameCell *)[super copyWithZone:zone];
	(* cell).image = [image retain];
	return cell;
}

- (BOOL)drawsImage
{
	return drawImage;
}

- (void)setDrawsImage:(BOOL)flag
{
	drawImage = flag;
}

- (NSImage *)image
{
	return image;
}

- (void)setImage:(NSImage *)newImage
{
	// save image and set to 16x16 pixels
	[image autorelease];
	image = [newImage retain];
	[image setScalesWhenResized:YES];
	[image setSize:NSMakeSize(16,16)];
}

- (NSRect)imageFrameForCellFrame:(NSRect)cellFrame
{
	if( image != nil && drawImage == YES )
	{
		// center image vertically in frame, offset right by three
		NSRect imageFrame;
		imageFrame.size = [image size];
		imageFrame.origin = cellFrame.origin;
		imageFrame.origin.x += 3;
		imageFrame.origin.y += ceil((cellFrame.size.height - imageFrame.size.height) / 2);
		return imageFrame;
	}
	else return NSZeroRect;
}

- (void)editWithFrame:(NSRect)cellFrame inView:(NSView *)controlView editor:(NSText *)textObject delegate:(id)delegateObject event:(NSEvent *)theEvent
{
	if( drawImage == YES )
	{
		// split cell frame into two, pass the text part to the superclass
		NSRect textFrame, imageFrame;
		NSDivideRect( cellFrame, &imageFrame, &textFrame, 3 + [image size].width, NSMinXEdge );
		[super editWithFrame:textFrame inView:controlView editor:textObject delegate:delegateObject event:theEvent];
	}
	else
	{
		[super editWithFrame:cellFrame inView:controlView editor:textObject delegate:delegateObject event:theEvent];
	}
}

- (void)selectWithFrame:(NSRect)cellFrame inView:(NSView *)controlView editor:(NSText *)textObject delegate:(id)delegateObject start:(int)selStart length:(int)selLength
{
	if( drawImage == YES )
	{
		// split cell frame into two, pass the text part to the superclass
		NSRect textFrame, imageFrame;
		NSDivideRect( cellFrame, &imageFrame, &textFrame, 3 + [image size].width, NSMinXEdge);
		[super selectWithFrame:textFrame inView:controlView editor:textObject delegate:delegateObject start:selStart length:selLength];
	}
	else
	{
		[super selectWithFrame:cellFrame inView:controlView editor:textObject delegate:delegateObject start:selStart length:selLength];
	}
}

- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
	if( image != nil && drawImage == YES )
	{
		NSRect imageFrame;
		NSSize imageSize = [image size];
		
		// get image frame
		NSDivideRect( cellFrame, &imageFrame, &cellFrame, 3 + imageSize.width, NSMinXEdge );
		if( [self drawsBackground] )
		{
			[[self backgroundColor] set];
			NSRectFill(imageFrame);
		}
		imageFrame.origin.x += 3;
		imageFrame.size = imageSize;
		
		// center vertically
		if( [controlView isFlipped] )
			imageFrame.origin.y += ceil((cellFrame.size.height + imageFrame.size.height) / 2);
		else imageFrame.origin.y += ceil((cellFrame.size.height - imageFrame.size.height) / 2);
		
		// draw image
		[image compositeToPoint:imageFrame.origin operation:NSCompositeSourceOver];
	}
	
	// get the superclass to draw the text stuff
	[super drawWithFrame:cellFrame inView:controlView];
}

- (NSSize)cellSize
{
	NSSize cellSize = [super cellSize];
	if( drawImage == YES )
		cellSize.width += (image? [image size].width:0) + 3;
	return cellSize;
}

@end