更改NSTextField的边框颜色 [英] Change border color of NSTextField

问题描述

我想改变NSTextField对象的边框颜色，但我不能实现它。

I want to change the border color of NSTextField object, but I can't achieve it.

我已经尝试过许多解决方案EX：是子类，绘制背景...

I already have tried many solutions EX: be subclass, draw background...

有没有人可以解决这个问题或分享任何想法？

is there anyone who can resolve this issue or share any ideas?

请让我知道。非常感谢。

Please let me know. Many thanks.

推荐答案

使用 NSBezierPath

- (void)drawRect:(NSRect)dirtyRect
{
    NSPoint origin = { 0.0,0.0 };
    NSRect rect;
    rect.origin = origin;
    rect.size.width  = [self bounds].size.width;
    rect.size.height = [self bounds].size.height;

    NSBezierPath * path;
    path = [NSBezierPath bezierPathWithRect:rect];
    [path setLineWidth:2];
    [[NSColor colorWithCalibratedWhite:1.0 alpha:0.394] set];
    [path fill];
    [[NSColor redColor] set]; 
    [path stroke];

    if (([[self window] firstResponder] == [self currentEditor]) && [NSApp isActive])
    {   
        [NSGraphicsContext saveGraphicsState];
        NSSetFocusRingStyle(NSFocusRingOnly);
        [path fill]; 
        [NSGraphicsContext restoreGraphicsState];
    }
    else
    {
        [[self attributedStringValue] drawInRect:rect];
    }
}

输出：

>

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