/
App.kt
71 lines (64 loc) · 2.17 KB
/
App.kt
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package example
import java.awt.*
import java.text.SimpleDateFormat
import java.util.Calendar
import java.util.Locale
import javax.swing.*
import javax.swing.JSpinner.DefaultEditor
import javax.swing.text.DateFormatter
import javax.swing.text.DefaultFormatterFactory
fun makeUI(): Component {
val c = Calendar.getInstance()
c[Calendar.HOUR_OF_DAY] = 0
c.clear(Calendar.MINUTE)
c.clear(Calendar.SECOND)
c.clear(Calendar.MILLISECOND)
val d = c.time
val format = SimpleDateFormat("mm:ss", Locale.getDefault())
val factory = DefaultFormatterFactory(DateFormatter(format))
val spinner1 = JSpinner(SpinnerDateModel(d, null, null, Calendar.SECOND))
(spinner1.editor as? DefaultEditor)?.textField?.formatterFactory = factory
val spinner2 = JSpinner(object : SpinnerDateModel(d, null, null, Calendar.SECOND) {
override fun setCalendarField(calendarField: Int) {
// https://docs.oracle.com/javase/8/docs/api/javax/swing/SpinnerDateModel.html#setCalendarField-int-
// If you only want one field to spin you can subclass and ignore the setCalendarField calls.
}
})
(spinner2.editor as? DefaultEditor)?.textField?.formatterFactory = factory
return JPanel(GridLayout(2, 1)).also {
it.add(makeTitledPanel("Default SpinnerDateModel", spinner1))
it.add(makeTitledPanel("Override SpinnerDateModel#setCalendarField(...)", spinner2))
it.border = BorderFactory.createEmptyBorder(10, 5, 10, 5)
it.preferredSize = Dimension(320, 240)
}
}
private fun makeTitledPanel(
title: String,
cmp: Component,
): Component {
val p = JPanel(GridBagLayout())
p.border = BorderFactory.createTitledBorder(title)
val c = GridBagConstraints()
c.weightx = 1.0
c.fill = GridBagConstraints.HORIZONTAL
c.insets = Insets(5, 5, 5, 5)
p.add(cmp, c)
return p
}
fun main() {
EventQueue.invokeLater {
runCatching {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName())
}.onFailure {
it.printStackTrace()
Toolkit.getDefaultToolkit().beep()
}
JFrame().apply {
defaultCloseOperation = WindowConstants.EXIT_ON_CLOSE
contentPane.add(makeUI())
pack()
setLocationRelativeTo(null)
isVisible = true
}
}
}