現在、クリックして Drawing Pad (別のパネル) の任意の場所に新しいインスタンスを作成できる JLabel があります。別の JLabel をコネクタとして使用して、Drawing Pad の JLabel インスタンスをリンクするために選択できるようにしたいと考えています。 . たとえば、コネクタは 2 つの JLabel の間に線を作成し、両方がリンクされていることをシミュレートします。どうすればこれを行うことができますか？
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JSeparator;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;
public class SimulatorGUI extends JFrame {
private JPanel contentPane;
JPanel southPanel;
JPanel centerPanel;
JPanel eastPanel;
JPanel westPanel;
int clickCount = 0;
ByteArrayOutputStream baos;
ByteArrayInputStream bais;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
SimulatorGUI frame = new SimulatorGUI();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public SimulatorGUI() {
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
setTitle("Network Simulator Prototype");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 800, 600);
JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar);
JMenu mnFile = new JMenu("File");
menuBar.add(mnFile);
JMenuItem mntmNew = new JMenuItem("New");
mnFile.add(mntmNew);
JMenuItem mntmOpen = new JMenuItem("Open");
mnFile.add(mntmOpen);
JMenuItem mntmSave = new JMenuItem("Save");
mnFile.add(mntmSave);
JMenuItem mntmSaveAs = new JMenuItem("Save As");
mnFile.add(mntmSaveAs);
JSeparator separator = new JSeparator();
mnFile.add(separator);
JMenuItem mntmExit = new JMenuItem("Exit");
mnFile.add(mntmExit);
JMenu mnEdit = new JMenu("Edit");
menuBar.add(mnEdit);
JMenuItem mntmCopy = new JMenuItem("Copy");
mnEdit.add(mntmCopy);
JMenuItem mntmPaste = new JMenuItem("Paste");
mnEdit.add(mntmPaste);
JSeparator separator_1 = new JSeparator();
mnEdit.add(separator_1);
JMenuItem mntmNewMenuItem = new JMenuItem("Undo");
mnEdit.add(mntmNewMenuItem);
JMenuItem mntmRedo = new JMenuItem("Redo");
mnEdit.add(mntmRedo);
JMenu mnOptions = new JMenu("Options");
menuBar.add(mnOptions);
JMenu mnView = new JMenu("View");
menuBar.add(mnView);
JMenu mnTools = new JMenu("Tools");
menuBar.add(mnTools);
JMenu mnExtentions = new JMenu("Extentions");
menuBar.add(mnExtentions);
JMenu mnHelp = new JMenu("Help");
menuBar.add(mnHelp);
southPanel = new JPanel();
JLabel lblNode = new JLabel("Node");
southPanel.add(lblNode);
JLabel lblWire = new JLabel("Wire");
southPanel.add(lblWire);
class MyMouseAdapter extends MouseAdapter {
@Override
public void mouseClicked(MouseEvent e) {
clickCount = 1;
try {
copy((JLabel) e.getSource());
} catch (Exception ex) {
}
}
}
lblNode.addMouseListener(new MyMouseAdapter());
southPanel.setBorder(BorderFactory.createTitledBorder("Nodes"));
contentPane.add(southPanel, BorderLayout.SOUTH);
centerPanel = new JPanel();
centerPanel.setBorder(BorderFactory.createTitledBorder(BorderFactory.createRaisedBevelBorder(), "Work Space", TitledBorder.CENTER, TitledBorder.TOP));
centerPanel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (clickCount == 1) {
try {
pasteLabel(e.getX(), e.getY());
} catch (Exception ex) {
}
}
}
});
contentPane.add(centerPanel, BorderLayout.CENTER);
centerPanel.setLayout(null);
eastPanel = new JPanel();
contentPane.add(eastPanel, BorderLayout.EAST);
eastPanel.setBorder(BorderFactory.createTitledBorder("Configuration"));
JButton btnSetting = new JButton("Settings");
btnSetting.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
GUI gui = new GUI();
}
});
eastPanel.add(btnSetting);
westPanel = new JPanel();
contentPane.add(westPanel, BorderLayout.WEST);
westPanel.setBorder(BorderFactory.createTitledBorder("Reset"));
JButton btnClear = new JButton("Clear");
btnClear.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
centerPanel.removeAll();
centerPanel.validate();
centerPanel.repaint();
}
});
westPanel.add(btnClear);
}
public void copy(JLabel label) throws Exception {
baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(label);
oos.close();
}
public void pasteLabel(int x, int y) throws Exception {
if (clickCount == 1) {
bais = new ByteArrayInputStream(baos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bais);
JLabel obj = (JLabel) ois.readObject();
MyMouseAdapter myMouseAdapter = new MyMouseAdapter();
obj.addMouseListener(myMouseAdapter);
obj.addMouseMotionListener(myMouseAdapter);
centerPanel.add(obj);
obj.setBounds(x, y, obj.getWidth(), obj.getHeight());
clickCount = 0;
ois.close();
}
}
class MyMouseAdapter extends MouseAdapter {
private Point initialLoc;
private Point initialLocOnScreen;
@Override
public void mousePressed(MouseEvent e) {
Component comp = (Component) e.getSource();
initialLoc = comp.getLocation();
initialLocOnScreen = e.getLocationOnScreen();
}
@Override
public void mouseReleased(MouseEvent e) {
Component comp = (Component) e.getSource();
Point locOnScreen = e.getLocationOnScreen();
int x = locOnScreen.x - initialLocOnScreen.x + initialLoc.x;
int y = locOnScreen.y - initialLocOnScreen.y + initialLoc.y;
comp.setLocation(x, y);
}
@Override
public void mouseDragged(MouseEvent e) {
Component comp = (Component) e.getSource();
Point locOnScreen = e.getLocationOnScreen();
int x = locOnScreen.x - initialLocOnScreen.x + initialLoc.x;
int y = locOnScreen.y - initialLocOnScreen.y + initialLoc.y;
comp.setLocation(x, y);
}
}
}
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
public class GUI extends JFrame {
private JPanel contentPane;
JPanel centerPanel;
JPanel southPanel;
public GUI() {
setVisible(true);
setResizable(false);
setTitle("Settings");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 280, 167);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
centerPanel = new JPanel(new BorderLayout(3, 3));
contentPane.add(centerPanel, BorderLayout.CENTER);
JComboBox comboBoxConnection = new JComboBox();
comboBoxConnection.setModel(new DefaultComboBoxModel(new String[] { "Wired", "Wireless" }));
JComboBox comboBoxTransmission = new JComboBox();
comboBoxTransmission.setModel(new DefaultComboBoxModel(new String[] { "UDP", "TCP" }));
JComboBox comboBoxOrdering = new JComboBox();
comboBoxOrdering.setModel(new DefaultComboBoxModel(new String[] { "FIFO" }));
JTextField selectTrafficAns = new JTextField();
JPanel labels = new JPanel(new GridLayout(0, 1));
JPanel controls = new JPanel(new GridLayout(0, 1));
centerPanel.add(labels, BorderLayout.WEST);
centerPanel.add(controls, BorderLayout.CENTER);
labels.add(new JLabel("Connection Type:"));
controls.add(comboBoxConnection);
labels.add(new JLabel("Transmission Type:"));
controls.add(comboBoxTransmission);
labels.add(new JLabel("Ordering:"));
controls.add(comboBoxOrdering);
labels.add(new JLabel("Amount of Traffic:"));
controls.add(selectTrafficAns);
southPanel = new JPanel();
contentPane.add(southPanel, BorderLayout.SOUTH);
JButton btnOk = new JButton("Ok");
btnOk.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
dispose();
}
});
southPanel.add(btnOk);
JButton btnCancel = new JButton("Cancel");
btnCancel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
dispose();
}
});
southPanel.add(btnCancel);
}
}