DrawView.m

/*
 
 File: DrawView.h
 Abstract: DrawView class that draws the current selected
                stage of the sample code.
 Version: <1.0>
 
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 original Apple software (the "Apple Software"), 
 to use, reproduce, modify and redistribute the 
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 */
#import "DrawView.h"
#import "DrawController.h"
#include "Stages.h"


@implementation DrawView


//
// Initialization
//

- (id)initWithFrame:(NSRect)frameRect
{
    if ((self = [super initWithFrame:frameRect]) != nil) {
	// Add initialization code here
	stage = 0;
    }
    return self;
}


//
//  Draw our content here
//

- (void)drawRect:(NSRect)rect
{
    NSGraphicsContext *nsctx = [NSGraphicsContext currentContext];
    CGContextRef context = (CGContextRef)[nsctx graphicsPort];
    float whiteColor[4] = {1, 1, 1, 1};
    float ops;

    CGRect r = CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
    
    // Draw a white background
    CGColorSpaceRef cs = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
    CGContextSetFillColorSpace(context,cs);
    CGContextSetFillColor(context, whiteColor);
    CGContextFillRect(context,r);
    CFRelease(cs);  // Done with this colorspace
     
    switch (stage) {
    default:
    case 1:
	ops = drawStage1(context, r);
	break;
    case 2:
	ops = drawStage2(context, r);
	break;
    case 3:
	ops = drawStage3(context, r);
	break;
    case 4:
	ops = drawStage4(context, r);
	break;
    case 5:
	ops = drawStage5(context, r);
	break;
    case 6:
	ops = drawStage6(context, r);
	break;
    case 7:
	ops = drawStage7(context, r);
	break;
    case 8:
	ops = drawStage8(context, r);
	break;
    case 9:
        ops = drawStage9(context, r);
        break;
    }
    [[[self window] windowController] updateTextField:ops];
}


//
// Change the current stage being run
// 
- (void)changeStage:(int)tag
{
    stage = tag;
    [self setNeedsDisplay:YES];
}




@end