Cocoa 在NSView中添加边框和圆角矩形
在我的应用程序中,NSView应该具有圆形的rect和border,我尝试了以下操作Cocoa 在NSView中添加边框和圆角矩形,cocoa,macos,nsview,Cocoa,Macos,Nsview,在我的应用程序中,NSView应该具有圆形的rect和border,我尝试了以下操作 static CGColorRef CGColorCreateFromNSColor (CGColorSpaceRef colorSpace, NSColor *color) { NSColor *deviceColor = [color colorUsingColorSpaceName:
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);
}
在InitWithframe中添加了以下代码行
[[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,还有其他方法吗
我能猜到的另一种方法是,在drawRect中绘制边框,但它看起来非常复杂,有人能给我推荐其他方法吗
问候
Rohan谢谢你看这个,这个逻辑对我有用
- (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];
}
-(void)drawRect:(NSRect)rect
{
if([self hasBorder])
[自绘制边框:rect];
}
-(无效)绘图边框:(NSRect)矩形{
NSRect frameRect=[自边界];
if(rect.size.height
要使图层特性产生任何影响,您需要先将NSView上的setWantsLayer设置为“是”
在InitWithFrame中,我的观点如下:
[self setWantsLayer: YES];
[self.layer setBorderWidth: 2];
[self.layer setCornerRadius: 10];
对前面的答案稍加改进。如果您不想将NSView子类化(如果它是控制器的基本视图),也可以执行以下操作:
override func viewDidLoad() {
super.viewDidLoad()
self.view.wantsLayer = true
}