如何改变 NSColorWell 的动作? [英] How to change the action of NSColorWell?

问题描述

我可以使用 NSColorWell 作为按钮来更改所选文本的颜色.由于 NSColorWell 是 NSControl 的对象，因此它具有目标和操作.我想，该操作是执行代码以更改 NSTextView 中所选文本的颜色.我在哪里可以找到 NSColorWell 动作的代码?我想改变它，我可以使用 NSColorWell 来更改所选文本的背景，并最终在 ToolBar 中有两个 NSColorWell 按钮:一个用于更改文本的前景色，第二个用于文本的背景色.

I can use NSColorWell as button to change the color of selected text. Since NSColorWell is object of an NSControl it has target and action. I guess, the action is implementing the code to change the color of the selected text in NSTextView. Where can I find this code for NSColorWell action? I would like to change it in away that I can use NSColorWell to change the background of the selected text, and ultimately to have in ToolBar two NSColorWell buttons: one to change text's foreground color and second one for text's background color.

推荐答案

NSColorWell 只是一个改变颜色的矩形控件.

NSColorWell is just a rectangular control to change a color.

• 您可以创建一个 IBAction 并将其连接到 Interface Builder 的 Connections Inspector (⌥⌘6) 中的颜色井的动作

• You can either create an IBAction and connect it to the action of the color well in the Connections Inspector (⌥⌘6) of Interface Builder

@IBAction func changeColor(_ sender : NSColorWell)
{
   let color = sender.color
   // do something with the color
}

或者将 Interface Builder 的 Bindings Inspector (⌥⌘7) 中的 value 绑定到一个 dynamic 属性，这个例子将将颜色井设置为默认值绿色.

Or bind the value in Bindings Inspector (⌥⌘7) of Interface Builder to a dynamic property, this example will set the color well to a default value of green.

dynamic var color : NSColor = .green {
   didSet {
     // do something with the color
   }
}

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