Kotlin のバックアップソース(No.1)

---
keywords: [Kotlin, Swing, Java]
description: KotlinでのSwingの使用方法に関するメモなど
author: aterai
pubdate: 2017-05-31
---
#contents

* 概要 [#summary]
- このページは`Kotlin`で`Swing`を使用する場合のサンプルの一覧です。

* Swing + Kotlin サンプル [#swing]
** JTable [#JTable]
- Kotlin
#code{{
import java.awt.*
import javax.swing.*
import javax.swing.table.*

fun makeUI(): JComponent {
  val columnNames = arrayOf("String", "Integer", "Boolean")
  val data = arrayOf(
      arrayOf("aaa", 12, true),
      arrayOf("bbb", 5, false),
      arrayOf("CCC", 92, true),
      arrayOf("DDD", 0, false))
  val model = object : DefaultTableModel(data, columnNames) {
    override fun getColumnClass(column : Int) : Class<Any> {
      return getValueAt(0, column).javaClass
    }
  }
  val table = JTable(model).apply {
    autoCreateRowSorter = true
  }
  return JPanel(BorderLayout(5, 5)).apply {
    setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5))
    add(JScrollPane(table))
  }
}
fun main(args : Array<String>) {
  EventQueue.invokeLater {
    JFrame("kotlin swing").apply {
      defaultCloseOperation = WindowConstants.EXIT_ON_CLOSE
      add(makeUI())
      size = Dimension(320, 240)
      setLocationRelativeTo(null)
      setVisible(true)
    }
  }
}
}}

- `Java`
#code{{
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class JTableExample {
  public JComponent makeUI() {
    String[] columnNames = {"String", "Integer", "Boolean"};
    Object[][] data = {
      {"aaa", 12, true}, {"bbb", 5, false},
      {"CCC", 92, true}, {"DDD", 0, false}
    };
    TableModel model = new DefaultTableModel(data, columnNames) {
      @Override public Class<?> getColumnClass(int column) {
        return getValueAt(0, column).getClass();
      }
    };
    JTable table = new JTable(model);
    table.setAutoCreateRowSorter(true);

    JPanel p = new JPanel(new BorderLayout());
    p.add(new JScrollPane(table));
    return p;
  }
  public static void main(String... args) {
    EventQueue.invokeLater(() -> {
      JFrame f = new JFrame();
      f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
      f.getContentPane().add(new JTableExample().makeUI());
      f.setSize(320, 240);
      f.setLocationRelativeTo(null);
      f.setVisible(true);
    });
  }
}
}}

* コメント [#comment]
#comment
#comment