Pentagram: Difference between revisions
Added Kotlin
Alpha bravo (talk | contribs) (Added AutoHotkey) |
(Added Kotlin) |
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Line 176:
f.setVisible(true);
});
}
}</lang>
=={{header|Kotlin}}==
{{trans|Java}}
<lang scala>// version 1.1.2
import java.awt.*
import java.awt.geom.Path2D
import javax.swing.*
class Pentagram : JPanel() {
init {
preferredSize = Dimension(640, 640)
background = Color.white
}
private fun drawPentagram(g: Graphics2D, len: Int, x: Int, y: Int,
fill: Color, stroke: Color) {
var x2 = x.toDouble()
var y2 = y.toDouble()
var angle = 0.0
val p = Path2D.Float()
p.moveTo(x2, y2)
for (i in 0..4) {
x2 += Math.cos(angle) * len
y2 += Math.sin(-angle) * len
p.lineTo(x2, y2)
angle -= Math.toRadians(144.0)
}
p.closePath()
with(g) {
color = fill
fill(p)
color = stroke
draw(p)
}
}
override fun paintComponent(gg: Graphics) {
super.paintComponent(gg)
val g = gg as Graphics2D
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON)
g.stroke = BasicStroke(5.0f, BasicStroke.CAP_ROUND, 0)
drawPentagram(g, 500, 70, 250, Color(0x6495ED), Color.darkGray)
}
}
fun main(args: Array<String>) {
SwingUtilities.invokeLater {
val f = JFrame()
with(f) {
defaultCloseOperation = JFrame.EXIT_ON_CLOSE
title = "Pentagram"
isResizable = false
add(Pentagram(), BorderLayout.CENTER)
pack()
setLocationRelativeTo(null)
isVisible = true
}
}
}</lang>
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