Bitmap/Flood fill: Difference between revisions
Added Kotlin
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Line 1,557:
new Test();
}
}</lang>
=={{header|Kotlin}}==
{{trans|Java}}
<lang scala>// version 1.1.4-3
import java.awt.Color
import java.awt.Point
import java.awt.image.BufferedImage
import java.util.LinkedList
import java.io.File
import javax.imageio.ImageIO
import javax.swing.JOptionPane
import javax.swing.JLabel
import javax.swing.ImageIcon
fun floodFill(image: BufferedImage, node: Point, targetColor: Color, replColor: Color) {
val target = targetColor.getRGB()
val replacement = replColor.getRGB()
if (target == replacement) return
val width = image.width
val height = image.height
val queue = LinkedList<Point>()
var nnode: Point? = node
do {
var x = nnode!!.x
val y = nnode.y
while (x > 0 && image.getRGB(x - 1, y) == target) x--
var spanUp = false
var spanDown = false
while (x < width && image.getRGB(x, y) == target) {
image.setRGB(x, y, replacement)
if (!spanUp && y > 0 && image.getRGB(x, y - 1) == target) {
queue.add(Point(x, y - 1))
spanUp = true
}
else if (spanUp && y > 0 && image.getRGB(x, y - 1) != target) {
spanUp = false
}
if (!spanDown && y < height - 1 && image.getRGB(x, y + 1) == target) {
queue.add(Point(x, y + 1))
spanDown = true
}
else if (spanDown && y < height - 1 && image.getRGB(x, y + 1) != target) {
spanDown = false
}
x++
}
nnode = queue.pollFirst()
}
while (nnode != null)
}
fun main(args: Array<String>) {
val image = ImageIO.read(File("Unfilledcirc.png"))
floodFill(image, Point(50, 50), Color.white, Color.yellow)
val title = "Floodfilledcirc.png"
ImageIO.write(image, "png", File(title))
JOptionPane.showMessageDialog(null, JLabel(ImageIcon(image)), title, JOptionPane.PLAIN_MESSAGE)
}</lang>
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