如何定制NSSlider以提供可可的非线性比例？

SampleAppDelegate.h

#import <Cocoa/Cocoa.h>

@interface SampleAppDelegate : NSObject <NSApplicationDelegate> {

    NSWindow * window;
    NSArray * values;

    IBOutlet NSSlider * theSlider;
    IBOutlet NSTextField * tHelabel;

}

- (IBACtion)sliderChanged:(id)sender;

@property (assign) IBOutlet NSWindow *window;

@end

SampleAppDelegate.h

#import "SampleAppDelegate.h"

@implementation SampleAppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(Nsnotification *)aNotification {

    values = [[NSArray alloc] initWithObjects:@"0",@"1",@"2",@"10",@"50",nil];

    [theSlider setnumberOfTickMarks:[values count]];
    [theSlider setMinValue:0];
    [theSlider setMaxValue:[values count]-1];
    [theSlider setAllowsTickMarkValuesOnly:YES];

    [tHelabel setstringvalue:[values objectATindex:0]];
    [theSlider seTintValue:0];


}

- (IBACtion)sliderChanged:(id)sender {

    int current = lroundf([theSlider floatValue]);
    [tHelabel setstringvalue:[values objectATindex:current]];

}

@end

界面生成器：
– 添加NSSlider(连接IBOutlet /连接IBACtion /启用连续更新)
– 添加NSTextField(连接IBOutlet)

结果：