Dumb drawing mistake somewhere...

[William Squires]

I've got 3 classes, ShapeView (NSView subclass), Shape (NSObject) and ShapeTest 
(the application delegate).

ShapeView.h
#import <Cocoa/Cocoa.h>

@class Shape;

@interface ShapeView : NSView

@property (nonatomic, retain) NSMutableArray *theShapes;

-(void)addShape:(Shape *)theShape;

@end

ShapeView.m
#import "ShapeView.h"
#import "Shape.h"

@implementation ShapeView

@synthesize theShapes = _theShapes;

#pragma mark - Memory Mangement

- (id)initWithFrame:(NSRect)frame
{
if (self = [super initWithFrame:frame])
  {
  // Initialization code here.
  self.theShapes = [[NSMutableArray alloc] initWithCapacity:10];
  }
return self;
}

-(void)dealloc
{
self.theShapes = nil;
[super dealloc];
}

#pragma mark - Drawing

- (void)drawRect:(NSRect)dirtyRect
{
// NSInteger shapeCount = [self.theShapes count];

// Drawing code here.
for (Shape *theShape in self.theShapes)
  {
  [theShape draw];
  }
}

#pragma mark - Public API

-(void)addShape:(Shape *)theShape
{
// primitive implementation with no error checking - just insert it
[self.theShapes addObject:theShape];
[self setNeedsDisplay:YES];
}

@end

Shape.h
@interface Shape : NSObject

@property (nonatomic, assign) CGPoint upperLeft;
@property (nonatomic, retain) NSColor *fillColor;
@property (nonatomic, retain) NSColor *wireColor;

-(id)initWithUpperLeftX:(CGFloat)newX andY:(CGFloat)newY withWireColor:(NSColor 
*)theWireColor andFillColor:(NSColor *)theFillColor;
-(void)draw;
-(NSString *)description;

@end

Shape.m
#import "Shape.h"

@implementation Shape

@synthesize upperLeft = _upperLeft;
@synthesize fillColor = _fillColor;
@synthesize wireColor = _wireColor;

#pragma mark - Memory Management

/*
-- Designated Initializer
*/
-(id)initWithUpperLeftX:(CGFloat)newX andY:(CGFloat)newY withWireColor:(NSColor 
*)theWireColor andFillColor:(NSColor *)theFillColor
{
if (self = [super init])
  {
  _upperLeft.x = newX;
  _upperLeft.y = newY;
  self.wireColor = [NSColor blackColor];
  self.fillColor = [NSColor whiteColor];
  }
return self;
}

-(id)init
{
return [self initWithUpperLeftX:0.0 andY:0.0 withWireColor:[NSColor blackColor] 
andFillColor:[NSColor whiteColor]];
}

-(void)dealloc
{
self.wireColor = nil;
self.fillColor = nil;
[super dealloc];
}

-(void)draw
{
NSBezierPath *theShapePath = nil;

theShapePath = [[[NSBezierPath alloc] init] autorelease];
[theShapePath setLineWidth:1.0];
[self.wireColor set];
[theShapePath moveToPoint:self.upperLeft];
[theShapePath lineToPoint:self.upperLeft];
[theShapePath closePath];
[theShapePath stroke];
}

-(NSString *)description
{
return [NSString stringWithFormat:@"upperLeft={%8.2f,%8.2f}\n wireColor=%@, 
fillColor=%@",self.upperLeft.x,self.upperLeft.y,self.wireColor,self.fillColor];
}

@end

and, in my AppDelegate.m I have the following:

#import "AppDelegate.h"
#import "Shape.h"
#import "LineShape.h"
#import "ShapeView.h"

@implementation AppDelegate

@synthesize window = _window;
@synthesize customView = _customView;

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

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
ShapeView *myShapeView = (ShapeView *)self.customView;

// Insert code here to initialize your application
Shape *starPoint = [[Shape alloc] initWithUpperLeftX:5.0 andY:50.0 
withWireColor:[NSColor blueColor] andFillColor:[NSColor whiteColor]];
[myShapeView addShape:starPoint];
LineShape *myLine = [[LineShape alloc] initWithUpperLeftX:10.0 andY:10.0 
andLowerRightX:20.0 andY:20.0];
[myShapeView addShape:myLine];
}

@end

Nothing seems to be disconnected or nil, but no drawing is occuring. What am I 
missing here? I think the problem is how to color the stroked NSBezierPath, but 
I'm not sure.


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