Mac OS 用NSView做出按钮效果

秒速五厘米 2022-12-31 04:28 113阅读 0赞

> **class** CustomViewButton: NibView \{
> 
> **var** trackingArea: NSTrackingArea?
> 
> **var** select = **false**
> 
> **var** normalImg: NSImage?
> 
> **var** selectImg: NSImage?
> 
> **var** normalColor = NSColor.white
> 
> **var** selectColor = Color.themeColor
> 
> **@IBOutlet** **weak** **var** image: NSImageView!
> 
> **@IBOutlet** **weak** **var** title: NSTextField!
> 
> **override** **func** draw(**\_** dirtyRect: NSRect) \{
> 
> **super**.draw(dirtyRect)
> 
> wantsLayer = **true**
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 0.262745098, green: 0.5059999824, blue: 1, alpha: 1)
> 
> title.textColor = normalColor
> 
> image.image = normalImg
> 
> \}
> 
> **override** **func** mouseUp(with event: NSEvent) \{
> 
> **super**.mouseUp(with: event)
> 
> **if** event.type == .leftMouseUp \{
> 
> select = !select
> 
> **if** select \{
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
> 
> title.textColor = selectColor
> 
> image.image = selectImg
> 
> \}**else** \{
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 0.262745098, green: 0.5059999824, blue: 1, alpha: 1)
> 
> title.textColor = normalColor
> 
> image.image = normalImg
> 
> \}
> 
> \}
> 
> \}
> 
> **override** **func** mouseDown(with event: NSEvent) \{
> 
> **super**.mouseDown(with: event)
> 
> **if** event.type == .leftMouseDown \{
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
> 
> title.textColor = selectColor
> 
> image.image = selectImg
> 
> \}
> 
> \}
> 
> **override** **func** mouseEntered(with event: NSEvent) \{
> 
> **super**.mouseEntered(with: event)
> 
> **if** !select \{
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 0.3385708332, green: 0.554590404, blue: 1, alpha: 1)
> 
> title.textColor = normalColor
> 
> image.image = normalImg
> 
> \}
> 
> \}
> 
> **override** **func** mouseExited(with event: NSEvent) \{
> 
> **super**.mouseExited(with: event)
> 
> **if** !select \{
> 
> **self**.layer?.backgroundColor = colorLiteral(red: 0.262745098, green: 0.5059999824, blue: 1, alpha: 1)
> 
> title.textColor = normalColor
> 
> image.image = normalImg
> 
> \}
> 
> \}
> 
> **override** **func** updateTrackingAreas() \{
> 
> **super**.updateTrackingAreas()
> 
> **if** trackingArea != **nil** \{
> 
> removeTrackingArea(trackingArea!)
> 
> \}
> 
> **let** options: NSTrackingArea.Options = \[.inVisibleRect, .mouseEnteredAndExited, .activeAlways\]
> 
> trackingArea = NSTrackingArea(rect: .zero, options: options, owner: **self**, userInfo: **nil**)
> 
> addTrackingArea(trackingArea!)
> 
> \}
> 
> \}