--- a/Todo.txt	Mon Feb 17 17:11:55 2020 +0900
+++ b/Todo.txt	Tue Feb 18 16:56:12 2020 +0900
@@ -1,14 +1,8 @@
-Sat Feb 23 08:24:24 JST 2019
-
-    64kにframeBufferUpdateRectangleを複数詰め込むことにより大きさをそろえることができる。
+Tue Feb 18 16:13:15 JST 2020
 
-               +----+
-               |    |
-    +---------------+
-    |               |
-    +----+----------+
-    |    |
-    +----+
+    NetworkInterfaceがマルチキャストをサポートしていたらマルチキャストを使用する
+    ただし、ダイレクトモードでアクセスしたら、streamする
+    ダイレクトモードアクセスかどうかの判断は難しい
 
 Fri Feb 22 19:12:24 JST 2019
 

--- a/src/main/java/jp/ac/u_ryukyu/treevnc/CreateConnectionParam.java	Mon Feb 17 17:11:55 2020 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/treevnc/CreateConnectionParam.java	Tue Feb 18 16:56:12 2020 +0900
@@ -5,7 +5,6 @@
 
 public class CreateConnectionParam {
 
-	private final FindRoot getBcast;
 	private String hostName;
 	private int portNumber = ConnectionParams.DEFAULT_VNC_ROOT;
 	private TreeRFBProto rfb;
@@ -17,19 +16,9 @@
 	public CreateConnectionParam(TreeRFBProto rfb) {
 		this.rfb = rfb;
         rfb.setConnectionParam(this);
-		getBcast = new FindRoot(rfb.acceptPort,this);
 	}
 
-	public synchronized void findTreeVncRoot() {
-		rfb.createRootSelectionPanel(this, getBcast);
-		getBcast.findRoot();
-        // wait for RootSelection
-        try {
-            wait();
-        } catch (InterruptedException e) {
-            System.out.println("any thread interrupt when wait for FindRoot " + e.getMessage());
-        }
-	}
+
 
 	/**
 	 * To find parent, send WHERE_TO_CONNECT command to the TreeVNC root
@@ -91,8 +80,4 @@
 		notify();
 	}
 
-	public FindRoot getFindRoot() {
-		return getBcast;
-	}
-
 }

--- a/src/viewer_swing/java/com/glavsoft/viewer/CuiViewer.java	Mon Feb 17 17:11:55 2020 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/CuiViewer.java	Tue Feb 18 16:56:12 2020 +0900
@@ -246,7 +246,7 @@
         TreeRFBProto rfb = new TreeRFBProto(false, this);
         CreateConnectionParam cp = new CreateConnectionParam(rfb);
         if (hostName==null) {
-            cp.findTreeVncRoot();
+            findTreeVncRoot(rfb, cp);
         } else {
             cp.setHostName(hostName);
         }

--- a/src/viewer_swing/java/com/glavsoft/viewer/Viewer.java	Mon Feb 17 17:11:55 2020 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/Viewer.java	Tue Feb 18 16:56:12 2020 +0900
@@ -408,7 +408,7 @@
         if (hostName!=null) {
             cp.setHostName(hostName);
         } else {
-            cp.findTreeVncRoot();
+            findTreeVncRoot(rfb,cp);
             // selected "Start Display Mode" or "Start as TreeVNC Root" for start selection panel
             if (cp.isDisplayMode() || cp.isRootMode()) {
                 myRfb = rfb;

--- a/src/viewer_swing/java/com/glavsoft/viewer/ViewerInterface.java	Mon Feb 17 17:11:55 2020 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/ViewerInterface.java	Tue Feb 18 16:56:12 2020 +0900
@@ -5,10 +5,7 @@
 import com.glavsoft.transport.Writer;
 import com.glavsoft.viewer.swing.ConnectionParams;
 import com.glavsoft.viewer.swing.SwingViewerWindow;
-import jp.ac.u_ryukyu.treevnc.BroadcastRFBListener;
-import jp.ac.u_ryukyu.treevnc.ScreenChangeRequest;
-import jp.ac.u_ryukyu.treevnc.ScreenChangeSelectionPanel;
-import jp.ac.u_ryukyu.treevnc.TreeRFBProto;
+import jp.ac.u_ryukyu.treevnc.*;
 
 import java.awt.*;
 import java.io.IOException;
@@ -140,4 +137,16 @@
             selectionPanel.visible();
         }
     }
+
+    default void findTreeVncRoot(TreeRFBProto rfb,CreateConnectionParam cp) {
+        FindRoot getBcast  = new FindRoot(rfb.acceptPort, cp);
+        rfb.createRootSelectionPanel(cp, getBcast);
+        getBcast.findRoot();
+        // wait for RootSelection
+        try {
+            cp.wait();
+        } catch (InterruptedException e) {
+            System.out.println("any thread interrupt when wait for FindRoot " + e.getMessage());
+        }
+    }
 }