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Swing レイアウト 1 (ソースを閲覧)

2020年2月15日 (土) 07:36時点における版

6,849 バイト追加 、 2020年2月15日 (土) 07:36
ページの作成:「==レイアウト 1== [Swing] *BorderLayout *BoxLayout *CardLayout ====BorderLayout==== File:1194_border.jpg ====BoxLayout==== File:1195_box.jpg ====Ca…」
==レイアウト 1==
[Swing]
*BorderLayout
*BoxLayout
*CardLayout

====BorderLayout====
[[File:1194_border.jpg]]
====BoxLayout====
[[File:1195_box.jpg]]
====CardLayout====
=====1枚目=====
[[File:1196_card01.jpg]]
=====2枚目=====
[[File:1197_card02.jpg]]

====ソースコード====

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Dictionary;
import java.util.Hashtable;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

@SuppressWarnings("serial")
public class LayoutTest extends JFrame {
/**
* BorderLayout test
* @see http://java.sun.com/docs/books/tutorial/uiswing/layout/border.html
*/
public void testBorderLayout() {
JFrame frame = new JFrame("BorderLayout Test");

Container pane = frame.getContentPane();
pane.setLayout(new BorderLayout());

pane.add(new JButton("NORTH"), BorderLayout.NORTH);
pane.add(new JButton("WEST"), BorderLayout.WEST);
pane.add(new JButton("CENTER"), BorderLayout.CENTER);
pane.add(new JButton("EAST"), BorderLayout.EAST);
pane.add(new JButton("SOUTH"), BorderLayout.SOUTH);

frame.pack();
frame.setVisible(true);
}
/**
* BoxLayout test
* @see http://java.sun.com/docs/books/tutorial/uiswing/layout/box.html
*/
public void testBoxLayout() {
JFrame frame = new JFrame("BoxLayout Test");

Container pane = frame.getContentPane();
pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));

JButton btn1 = new JButton("button1");
btn1.setAlignmentX(Component.CENTER_ALIGNMENT); // 0.5f
JButton btn2 = new JButton("button2");
btn2.setAlignmentX(Component.CENTER_ALIGNMENT); // 0.5f
JButton btn3 = new JButton("button3");
btn3.setAlignmentX(Component.CENTER_ALIGNMENT); // 0.5f

pane.add(btn1);
pane.add(btn2);
pane.add(btn3);

JPanel ctrlPanel = new JPanel();
Dictionary<Integer, JLabel> dic = new Hashtable<Integer, JLabel>();
dic.put(0, new JLabel("0.0f"));
dic.put(5, new JLabel("0.5f"));
dic.put(10, new JLabel("1.0f"));

ctrlPanel.setLayout(new BoxLayout(ctrlPanel, BoxLayout.Y_AXIS));
JSlider sld1 = new JSlider(0, 10);
sld1.addChangeListener(new SliderChangeLisner(btn1));
JSlider sld2 = new JSlider(0, 10);
sld2.addChangeListener(new SliderChangeLisner(btn2));
JSlider sld3 = new JSlider(0, 10);
sld3.addChangeListener(new SliderChangeLisner(btn3));

sld3.setLabelTable(dic);
sld3.setPaintLabels(true);

ctrlPanel.add(sld1);
ctrlPanel.add(sld2);
ctrlPanel.add(sld3);

pane.add(ctrlPanel);

frame.pack();
frame.setVisible(true);
}
class SliderChangeLisner implements ChangeListener {
JButton btn = null;
SliderChangeLisner(JButton btn) {
this.btn = btn;
}
public void stateChanged(ChangeEvent e) {
float val = (float)((JSlider)e.getSource()).getValue();
this.btn.setAlignmentX(val / 10.0f);
this.btn.revalidate(); // 遅延自動レイアウト
}
}
/**
* CardLayout test
* @see http://java.sun.com/docs/books/tutorial/uiswing/layout/card.html
*/
public void testCardLayout() {
JFrame frame = new JFrame("CardLayout Test");
Container pane = frame.getContentPane();

final String BUTTON_CARD = "buttons";
final String TEXT_CARD = "texts";

final JPanel cards = new JPanel(new CardLayout());

JPanel ctrlPane = new JPanel();
String comboBoxItems[] = { BUTTON_CARD, TEXT_CARD };
JComboBox cb = new JComboBox(comboBoxItems);
cb.addItemListener(
new ItemListener() {
public void itemStateChanged(ItemEvent e) {
((CardLayout)cards.getLayout()).show(
cards, (String)e.getItem()
);

}
}
);

cb.setEditable(false);
ctrlPane.add(cb);

JPanel card1 = new JPanel();
card1.add(new JButton("Button 1"));
card1.add(new JButton("Button 2"));
card1.add(new JButton("Button 3"));

JPanel card2 = new JPanel();
card2.add(new JTextField("TextField", 10));
card2.add(new JTextField("TextField", 10));
card2.add(new JTextField("TextField", 10));

cards.add(card1, BUTTON_CARD);
cards.add(card2, TEXT_CARD);

pane.add(ctrlPane, BorderLayout.NORTH);
pane.add(cards, BorderLayout.CENTER);

frame.pack();
frame.setVisible(true);
}

/* ******* 以下メニュー用 ********* */
public LayoutTest() {
setTitle("Layout Test");

JButton btn1 = new JButton("border");
btn1.addActionListener(new MyActionListener("border"));

JButton btn2 = new JButton("box");
btn2.addActionListener(new MyActionListener("box"));

JButton btn3 = new JButton("card");
btn3.addActionListener(new MyActionListener("card"));

JPanel pane = new JPanel();
pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));

pane.add(btn1);
pane.add(btn2);
pane.add(btn3);
getContentPane().add(pane);

pack();
}
class MyActionListener implements ActionListener {
private String type = null;
public MyActionListener(String type) {
this.type = type;
}
public void actionPerformed(ActionEvent e) {
if ("border".equals(this.type)) {
testBorderLayout();
}
if ("box".equals(this.type)) {
testBoxLayout();
}
if ("card".equals(this.type)) {
testCardLayout();
}
}
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
// UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
} catch (Exception e) {
e.printStackTrace();
}
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
LayoutTest lt = new LayoutTest();
lt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
lt.setVisible(true);
}
}
);
}
}
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