Is there a flag that can be set that will cause a Cocoa button to be highlighted when it is moused over. I need to this programatically with objective C on OSX.
是否有一个可以设置的标志,当它被鼠标悬停时会导致Cocoa按钮突出显示。我需要以编程方式在OSX上使用目标C.
2 个解决方案
#1
15
Setup a tracking area for the view with addTrackingArea (provided you are using Leopard or newer OS X). You'll get events on mouse enter and mouse exit.
使用addTrackingArea为视图设置跟踪区域(假设您使用的是Leopard或更新的OS X)。您将在鼠标输入和鼠标退出时获得事件。
#2
1
something below maybe the answer.
以下可能是答案。
class HoverButton: NSButton{
var backgroundColor: NSColor?
var hoveredBackgroundColor: NSColor?
var pressedBackgroundColor: NSColor?
private var hovered: Bool = false
override var wantsUpdateLayer:Bool{
return true
}
required init?(coder: NSCoder) {
super.init(coder: coder)
self.commonInit()
}
override init(frame frameRect: NSRect) {
super.init(frame: frameRect)
self.commonInit()
}
func commonInit(){
self.wantsLayer = true
self.createTrackingArea()
self.hovered = false
self.hoveredBackgroundColor = NSColor.selectedTextBackgroundColor()
self.pressedBackgroundColor = NSColor.selectedTextBackgroundColor()
self.backgroundColor = NSColor.clearColor()
}
private var trackingArea: NSTrackingArea!
func createTrackingArea(){
if(self.trackingArea != nil){
self.removeTrackingArea(self.trackingArea!)
}
let circleRect = self.bounds
let flag = NSTrackingAreaOptions.MouseEnteredAndExited.rawValue + NSTrackingAreaOptions.ActiveInActiveApp.rawValue
self.trackingArea = NSTrackingArea(rect: circleRect, options: NSTrackingAreaOptions(rawValue: flag), owner: self, userInfo: nil)
self.addTrackingArea(self.trackingArea)
}
override func mouseEntered(theEvent: NSEvent) {
self.hovered = true
NSCursor.pointingHandCursor().set()
self.needsDisplay = true
}
override func mouseExited(theEvent: NSEvent) {
self.hovered = false
NSCursor.arrowCursor().set()
self.needsDisplay = true
}
override func updateLayer() {
if(hovered){
if (self.cell!.highlighted){
self.layer?.backgroundColor = pressedBackgroundColor?.CGColor
}
else{
self.layer?.backgroundColor = hoveredBackgroundColor?.CGColor
}
}
else{
self.layer?.backgroundColor = backgroundColor?.CGColor
}
}
}
}
link: https://github.com/fancymax/HoverButton
链接:https://github.com/fancymax/HoverButton
#1
15
Setup a tracking area for the view with addTrackingArea (provided you are using Leopard or newer OS X). You'll get events on mouse enter and mouse exit.
使用addTrackingArea为视图设置跟踪区域(假设您使用的是Leopard或更新的OS X)。您将在鼠标输入和鼠标退出时获得事件。
#2
1
something below maybe the answer.
以下可能是答案。
class HoverButton: NSButton{
var backgroundColor: NSColor?
var hoveredBackgroundColor: NSColor?
var pressedBackgroundColor: NSColor?
private var hovered: Bool = false
override var wantsUpdateLayer:Bool{
return true
}
required init?(coder: NSCoder) {
super.init(coder: coder)
self.commonInit()
}
override init(frame frameRect: NSRect) {
super.init(frame: frameRect)
self.commonInit()
}
func commonInit(){
self.wantsLayer = true
self.createTrackingArea()
self.hovered = false
self.hoveredBackgroundColor = NSColor.selectedTextBackgroundColor()
self.pressedBackgroundColor = NSColor.selectedTextBackgroundColor()
self.backgroundColor = NSColor.clearColor()
}
private var trackingArea: NSTrackingArea!
func createTrackingArea(){
if(self.trackingArea != nil){
self.removeTrackingArea(self.trackingArea!)
}
let circleRect = self.bounds
let flag = NSTrackingAreaOptions.MouseEnteredAndExited.rawValue + NSTrackingAreaOptions.ActiveInActiveApp.rawValue
self.trackingArea = NSTrackingArea(rect: circleRect, options: NSTrackingAreaOptions(rawValue: flag), owner: self, userInfo: nil)
self.addTrackingArea(self.trackingArea)
}
override func mouseEntered(theEvent: NSEvent) {
self.hovered = true
NSCursor.pointingHandCursor().set()
self.needsDisplay = true
}
override func mouseExited(theEvent: NSEvent) {
self.hovered = false
NSCursor.arrowCursor().set()
self.needsDisplay = true
}
override func updateLayer() {
if(hovered){
if (self.cell!.highlighted){
self.layer?.backgroundColor = pressedBackgroundColor?.CGColor
}
else{
self.layer?.backgroundColor = hoveredBackgroundColor?.CGColor
}
}
else{
self.layer?.backgroundColor = backgroundColor?.CGColor
}
}
}
}
link: https://github.com/fancymax/HoverButton
链接:https://github.com/fancymax/HoverButton