QuartzDemo/QuartzPolyViewController.m

/*
     File: QuartzPolyViewController.m
 Abstract: A UIViewController subclass that manages a QuartzPolygonView and a UI to allow for the selection of the stroke and fill mode to demonstrate.
  Version: 3.0
 
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*/
 
#import "QuartzPolyViewController.h"
#import "QuartzPolygons.h"
 
 
@interface QuartzPolyViewController()
 
@property(nonatomic, readwrite, strong) IBOutlet UIPickerView *picker;
@property (nonatomic, weak) IBOutlet QuartzPolygonView *quartzPolygonView;
 
@end
 
 
 
/*
 These strings represent the actual drawing mode constants that are passed to CGContextDrawpath and as such should not be localized in the context of this sample.
 */
static NSString *drawModes[] = {
    @"Fill",
    @"EOFill",// 1
    @"Stroke",// 2
    @"FillStroke",// 3
    @"EOFillStroke"// 4
};
static NSInteger drawModeCount = sizeof(drawModes) / sizeof(drawModes[0]);
 
 
@implementation QuartzPolyViewController
 
// Setup the picker's default components.
-(void)viewDidLoad
{
    [super viewDidLoad];
    [self.picker selectRow:self.quartzPolygonView.drawingMode inComponent:0 animated:NO];
}
 
 
#pragma mark UIPickerViewDelegate & UIPickerViewDataSource methods
 
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 1;
}
 
 
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return drawModeCount;
}
 
 
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;
{
    return drawModes[row];
}
 
 
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    self.quartzPolygonView.drawingMode = [self.picker selectedRowInComponent:0];
}
 
@end