Fill Rule

C4WorkSpace.m

//
//  C4WorkSpace.m
//  Examples
//
//  Created by Travis Kirton
//

#import "C4WorkSpace.h"

@interface C4WorkSpace ()
-(void)createAndStylePolygons;
@end

@implementation C4WorkSpace {
    C4Shape *poly1, *poly2;
}

-(void)setup {
    [self createAndStylePolygons];
    [self createLabels];
    
    //define the fill rules for each polygon
    poly1.fillRule = FILLNORMAL; //Default value    
    poly2.fillRule = FILLEVENODD;
}

-(void)createAndStylePolygons {
    //the base width for the polygons
    CGPoint polyPoints[7] = {
        CGPointZero,
        CGPointMake(150,-150),
        CGPointMake(200,-100),
        CGPointMake(100,0),
        CGPointMake(0,-100),
        CGPointMake(50,-150),
        CGPointMake(200,0)
    };

    //create poly1 and style it
    poly1 = [C4Shape polygon:polyPoints pointCount:7];
    poly1.center = CGPointMake(self.canvas.center.x, self.canvas.height /3);
    
    //create poly2 and style it
    poly2 = [C4Shape polygon:polyPoints pointCount:7];
    poly2.center = CGPointMake(self.canvas.center.x, self.canvas.height * 2/3);

    //add all the polygons to the canvas
    [self.canvas addShape:poly1];
    [self.canvas addShape:poly2];
}

-(void)createLabels {
    C4Font *f = [C4Font fontWithName:@"ArialRoundedMTBold" size:30.0f];
    C4Label *l;
    CGPoint center;
    
    //create the FILLNORMAL label, center it to the base of poly1
    l = [C4Label labelWithText:@"FILLNORMAL" font:f];
    [l sizeToFit];
    center = poly1.center;
    center.y += poly1.height/2 +l.height;
    l.center = center;
    [self.canvas addLabel:l];

    //create the FILLEVENODD label, center it to the base of poly2
    l = [C4Label labelWithText:@"FILLEVENODD" font:f];
    [l sizeToFit];
    center = poly2.center;
    center.y += poly2.height/2 + l.height;
    l.center = center;
    [self.canvas addLabel:l];
}
@end