--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/treevnc/ScreenChangeSelectionPanel.java	Mon Nov 09 15:44:53 2015 +0900
@@ -0,0 +1,74 @@
+package jp.ac.u_ryukyu.treevnc;
+
+import com.glavsoft.rfb.protocol.ProtocolContext;
+import com.glavsoft.viewer.swing.SwingViewerWindow;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+
+public class ScreenChangeSelectionPanel extends JFrame implements ActionListener, ItemListener {
+
+    private JPanel panel = new JPanel();
+    private JButton button = new JButton("Share Screen");
+    private int counter;
+    private Checkbox[] check = new Checkbox[20];
+    private CheckboxGroup ch = new CheckboxGroup();
+    private Container contentPane = getContentPane();
+    private double width = 750;
+    private double height = 500;
+
+    private SwingViewerWindow viewerWindow;
+    private ProtocolContext context;
+
+
+    public ScreenChangeSelectionPanel(SwingViewerWindow viewerWindow, ProtocolContext context) {
+        this.context = context;
+        this.viewerWindow = viewerWindow;
+        setTitle("Select Share Screen");
+        setResizable(false);
+    }
+
+    public void setButton() {
+        panel.add(button);
+        button.addActionListener(this);
+        contentPane.add(panel, BorderLayout.CENTER);
+    }
+
+    public void checkBox(String str) {
+        if (counter == 0)
+            check[counter] = new Checkbox(str, true, ch);
+        else
+            check[counter] = new Checkbox(str, false, ch);
+        check[counter].addItemListener(this);
+        panel.add(check[counter]);
+        panel.setLayout(new GridLayout(counter + 2, 0));
+        panel.setLocation((int) width - 250, (int) height - 80);
+        counter++;
+    }
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        for (int i = 0; i < counter; i++) {
+            if (check[i].getState()) {
+                viewerWindow.screenChangeRequest(context, i);
+                setVisible(false);
+            }
+        }
+    }
+
+    public void visible() {
+        Point point = new Point();
+        point.setLocation(width - 250, height - 80);
+        setLocation(point.getLocation());
+        pack();
+        setVisible(true);
+    }
+
+    @Override
+    public void itemStateChanged(ItemEvent e) {
+
+    }
+}