在NSView中添加边框和圆角矩形 [英] Adding border and Rounded Rect in the NSView

问题描述

在我的应用程序，NSView应该有圆角矩形和边框，我尝试以下

  static CGColorRef CGColorCreateFromNSColor（CGColorSpaceRef 
 colorSpace，NSColor * color）
 {
 NSColor * deviceColor = [color colorUsingColorSpaceName：
 NSDeviceRGBColorSpace]; 
 
 float components [4]; 
 [deviceColor getRed：& components [0] green：& components [1] blue：
& components [2] alpha：& components [3]]; 
 
 return CGColorCreate（colorSpace，components）; 
} 
  

并在InitWithframe中添加以下代码

  [[self layer] setCornerRadius：505]; 
 [[self layer] setBorderWidth：500.0]; 
 CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB（）; 
 CGColorRef cgColor = CGColorCreateFromNSColor（colorSpace，[NSColor whiteColor]）; 
 CGColorSpaceRelease（colorSpace）; 
 [[self layer] setBorderColor：cgColor]; 
  

但没有任何效果，还有其他方法，

我可以猜到的另一种方法是，在drawRect绘制边框，但它似乎很复杂，任何人都可以建议我任何其他方法

/ p>

Rohan

解决方案

   - （void）drawRect：（NSRect）rect 
 {
 if（[self hasBorder ]）
 [self drawBorder：rect]; 
 
} 
 
  - （void）drawBorder：（NSRect）rect {
 NSRect frameRect = [self bounds]; 
 
 if（rect.size.height< frameRect.size.height）
 return; 
 NSRect newRect = NSMakeRect（rect.origin.x + 2，rect.origin.y + 2，rect.size.width-3，rect.size.height-3）; 
 
 NSBezierPath * textViewSurround = [NSBezierPath bezierPathWithRoundedRect：newRect xRadius：10 yRadius：10]; 
 [textViewSurround setLineWidth：BORDER_WIDTH]; 
 [pBorderColor set]; 
 [textViewSurround stroke]; 
} 
  

In my Application , NSView should have rounded rect and border, i tried following

static CGColorRef CGColorCreateFromNSColor (CGColorSpaceRef
                                            colorSpace, NSColor *color)
{
    NSColor *deviceColor = [color colorUsingColorSpaceName:
                            NSDeviceRGBColorSpace];

    float components[4];
    [deviceColor getRed: &components[0] green: &components[1] blue:
     &components[2] alpha: &components[3]];

    return CGColorCreate (colorSpace, components);
}

and in InitWithframe added following lines of Code

    [[self layer] setCornerRadius:505];
    [[self layer] setBorderWidth:500.0];
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB ();
    CGColorRef cgColor = CGColorCreateFromNSColor (colorSpace, [NSColor whiteColor]);
    CGColorSpaceRelease (colorSpace);
    [[self layer] setBorderColor:cgColor];

but no effects at all, is there any other method,

Another approach what i could guess is , in drawRect draw border and but it seems very complex, can anyone suggest me any other method

Kind Regards

Rohan

解决方案

Thanks for looking at this, this logic worked for me,

- (void)drawRect:(NSRect)rect
{
   if([self hasBorder])
    [self drawBorder:rect];

}

-(void)drawBorder:(NSRect)rect{
    NSRect frameRect = [self bounds];

    if(rect.size.height < frameRect.size.height) 
        return;
    NSRect newRect = NSMakeRect(rect.origin.x+2, rect.origin.y+2, rect.size.width-3, rect.size.height-3);

    NSBezierPath *textViewSurround = [NSBezierPath bezierPathWithRoundedRect:newRect xRadius:10 yRadius:10];
    [textViewSurround setLineWidth:BORDER_WIDTH];
    [pBorderColor set];
    [textViewSurround stroke];
}

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