ProjectList.kt

import javafx.beans.property.SimpleObjectProperty
import javafx.beans.property.SimpleStringProperty
import javafx.collections.FXCollections
import tornadofx.*
import java.time.LocalDate

class Project {
    val nameProperty = SimpleStringProperty()
    var name by nameProperty
    val descriptionProperty = SimpleStringProperty()
    val dateProperty = SimpleObjectProperty<LocalDate>()
}

class ProjectFragment(val project: Project): Fragment() {

    override val root = borderpane {
        top {
            label(project.nameProperty)
        }

        center {
            vbox(5.0) {
                label(project.descriptionProperty)
                label(project.dateProperty)
            }
        }

        right {
            button("X")
        }

        style {
            backgroundColor += c("yellowgreen")
        }
    }
}

class ProjectFormFragment: Fragment() {
    val result = Project()
    override val root = borderpane {
        center {
            form {
                fieldset("New Project") {
                    field("Name") {
                        textfield(result.nameProperty)
                    }
                    field("Description") {
                        textfield(result.descriptionProperty)
                    }
                    field("Due") {
                        datepicker(result.dateProperty)
                    }
                }
            }
        }

        bottom {
            button("Create").setOnAction { close() }
        }
    }
}

class ProjectListView() : View() {
    val projectList = FXCollections.observableArrayList<Project>()

    override val root = borderpane {
        left {
            vbox(5.0).bindComponents(SortedList(projectList, comparator), ::ProjectFragment)
        }

        right {
            vbox(5.0).bindComponents(projectList, ::ProjectFragment)
        }

        bottom {
            button("New Project").setOnAction {
                val fragment = ProjectFormFragment()
                fragment.openModal(block = true)
                projectList.add(fragment.result)
            }
        }
    }
}

object comparator : Comparator<Project> {
    override fun compare(a: Project?, b: Project?): Int {
        return a?.name?.compareTo(b?.name?:"") ?: 0
    }
}