Scala swing 2.8 如何设置滑块的背景颜色?
如何在 Scala Swing 2.8 Final 中设置滑块的背景颜色。 我复制了发行版中提供的 UIDemo 对象以进行测试并添加,
background = java.awt.Color.RED
但这在我的 Mac 上不起作用。
object UIDemo extends SimpleSwingApplication {
...
object slider extends Slider {
min = 0
value = tabs.selection.index
max = tabs.pages.size-1
majorTickSpacing = 1
background = java.awt.Color.RED
}
...
}
我想到这之前是有效的 - 我一路上错过了什么吗?
谢谢, 保罗
How can I set the background color of a Slider in Scala Swing 2.8 final.
I copied the UIDemo object provided in the distribution for my tests and added
background = java.awt.Color.RED
but that does not take effect on my mac.
object UIDemo extends SimpleSwingApplication {
...
object slider extends Slider {
min = 0
value = tabs.selection.index
max = tabs.pages.size-1
majorTickSpacing = 1
background = java.awt.Color.RED
}
...
}
I had in mind that this was working before - did I miss something along the way?
Thanks,
Paul
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有可能
opaque
属性被设置为 false,即它是透明的。将其设置回 true 以显示背景。Chance is that
opaque
property is set to false, i.e. it is transparent. Set it back to true for background to show up.