枚举类中有抽象方法、有构造函数，每个值继承该方法实现自己的业务行为逻辑。 combobox绑定枚举类。 togglegroup包裹radiobutton，利用枚举类的值批量生成radiobutton
查看演示：https://www.bilibili.com/video/av60656281/
import javafx.application.Application
import javafx.beans.property.SimpleObjectProperty
import javafx.geometry.Orientation
import javafx.scene.Group
import javafx.scene.paint.Color
import tornadofx.*
import kotlin.math.max
fun main() = Application.launch(LearnApp::class.java)
class LearnApp : App(LearnV::class)
class LearnV : View("分形图的绘制") {
val x = doubleProperty()
val y = doubleProperty()
val widthh = doubleProperty()
val heightt = doubleProperty()
val depth = intProperty()
val maxDepth = intProperty()
lateinit var g: Group
val color=SimpleObjectProperty(this, "color", MyColor.Indigo)
val fractal = SimpleObjectProperty(this, "fractal", FractalShape.Rectangle)
override val root = borderpane {
fun draw(fs:FractalShape){
center?.getChildList()?.clear()
fs.drawFractal(g,
x.value,
y.value,
widthh.value,
heightt.value,
depth.value,
maxDepth.value,
color.value)
}
style = "-fx-font-size: 14pt; "
top = vbox(5) {
form {
fieldset(labelPosition = Orientation.VERTICAL) {
hbox(5) {
field("x:") {
textfield(x) {
text = "10"
}
}
field("y:") {
textfield(y) {
text = "10"
}
}
field("widthh:") {
textfield(widthh) {
text = "800"
}
}
field("heightt:") {
textfield(heightt) {
text = "400"
}
}
field("depth:") {
textfield(depth) {
text = "1"
}
}
field("maxDepth:") {
textfield(maxDepth) {
text = "5"
}
}
}
hbox(5) {
field("color:") {
combobox(property = color, values = MyColor.all)
}
field("depth:") {
combobox(property = depth, values = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
}
field("maxDepth:") {
combobox(property = maxDepth, values = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
}
field("FractalShape:") {
combobox(
property = fractal,
values = FractalShape.all
) {
selectionModel.selectedItemProperty().addListener { _, _, _ ->
selectionModel.selectedItem?.let {
run{
draw(it)
}
}
}
}
}
field(""){
togglegroup {
FractalShape.values().forEach { fs->
radiobutton(fs.name){
action{
run{
draw(fs)
}
}
}
}
}
}
}
}
prefWidth = 200.0
}
}
center = group {
g = this
}
prefHeight = 800.0
prefWidth = 1000.0
}
}
enum class MyColor(val color:Color) {
Red(Color.RED),Blue(Color.BLUE),Indigo(Color.INDIGO),Yellow(Color.YELLOW);
companion object {
val all by lazy { values().toList() }
}
}
enum class FractalShape {
Rectangle {
tailrec override fun drawFractal(g: Group, x: Double, y: Double, w: Double, h: Double, depth: Int, maxDepth: Int,color:MyColor) {
if (depth == maxDepth) {
g.run {
add(
rectangle(x, y, w, h) {
fill = color.color
}
)
}
return
}
if ((w <= 1).and(h <= 1)) {
g.run {
add(
rectangle(x, y, max(w, 1.0), max(h, 1.0)) {
fill = color.color
}
)
}
return
}
val w_3 = w / 3
val h_3 = h / 3
drawFractal(g, x, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + w_3, y + h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
return
}
},
Circle {
tailrec override fun drawFractal(g: Group, x: Double, y: Double, w: Double, h: Double, depth: Int, maxDepth: Int,color:MyColor) {
if (depth == maxDepth) {
g.run {
add(
circle(x, y, w) {
fill = color.color
}
)
}
return
}
if (w <= 1) {
g.run {
add(
circle(x, y, max(w, 1.0)) {
fill = color.color
}
)
}
return
}
val w_3 = w / 3
val h_3 = h / 3
drawFractal(g, x, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + w_3, y + h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
return
}
},
Ellipse {
tailrec override fun drawFractal(g: Group, x: Double, y: Double, w: Double, h: Double, depth: Int, maxDepth: Int,color:MyColor) {
if (depth == maxDepth) {
with(g) {
add(
ellipse(x, y, w, h) {
fill = color.color
}
)
}
return
}
if ((w <= 1).and(h <= 1)) {
g.run {
add(
ellipse(x, y, max(w, 1.0), max(h, 1.0)) {
fill = color.color
}
)
}
return
}
val w_3 = w / 3
val h_3 = h / 3
drawFractal(g, x, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + w_3, y + h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
drawFractal(g, x + 2 * w_3, y + 2 * h_3, w_3, h_3, depth + 1, maxDepth,color)
return
}
};
companion object {
val all by lazy { values().toList() }
}
abstract fun drawFractal(g: Group, x: Double, y: Double, w: Double, h: Double, depth: Int, maxDepth: Int,color:MyColor)
}