/** Running the server watch thread (UDP) */
public void run() {
byte[] buffer = new byte[5000];
DatagramPacket packet;
try {
// Create a socket
MulticastSocket socket = new MulticastSocket(port + 1);
InetAddress address = InetAddress.getByName("224.0.0.31");
socket.joinGroup(address);
while (true) {
packet = new DatagramPacket(buffer, buffer.length);
socket.receive(packet); // Will wait until new packet received - Hence separate thread
if (firstRun) {
firstRun = false;
// Create thread to handle socket send
new ClientSendThread(packet.getAddress(), this, client).start();
}
ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
ObjectInputStream ois = new ObjectInputStream(new BufferedInputStream(bais));
Packet pkt = (Packet) ois.readObject();
// Check the packet type - perform action based on this
if (pkt instanceof PointPacket) {
// Send packet to Canvas
canvas.drawPoints((PointPacket) pkt);
}
if (pkt instanceof ChatPacket) {
if (!((ChatPacket) pkt).get_sender().equals("KEEPALIVE")) {
chat.drawMessage((ChatPacket) pkt);
}
}
}
} catch (Exception e) {
System.err.println("Exception");
}
}
public Whiteboard() {
setTitle("Distributed Whiteboard");
setResizable(false);
btnIcon = new ImageIcon();
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(802, 607);
JSplitPane splitPane = new JSplitPane();
splitPane.setAutoscrolls(true);
splitPane.setDividerSize(0);
getContentPane().add(splitPane, BorderLayout.CENTER);
Container drawingCanvas = new Container();
drawingCanvas.setBackground(_bgColor);
drawingCanvas.setForeground(_bgColor);
splitPane.setRightComponent(drawingCanvas);
canvas = new DrawingCanvas();
canvas.setAutoscrolls(true);
canvas.setBounds(0, 0, 679, 494);
drawingCanvas.add(canvas);
JPanel pnlTools = new JPanel();
splitPane.setLeftComponent(pnlTools);
GridBagLayout gbl_pnlTools = new GridBagLayout();
gbl_pnlTools.columnWidths = new int[] {45, 30, 0, 0};
gbl_pnlTools.rowHeights = new int[] {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
gbl_pnlTools.columnWeights = new double[] {1.0, 0.0, 0.0, Double.MIN_VALUE};
gbl_pnlTools.rowWeights =
new double[] {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, Double.MIN_VALUE};
pnlTools.setLayout(gbl_pnlTools);
btnIcon = new ImageIcon("images/free_a.jpg");
btnFreedraw = new JToggleButton(btnIcon);
btnFreedraw.setToolTipText("Freedraw");
btnIcon = new ImageIcon("images/free_b.jpg");
btnFreedraw.setSelectedIcon(btnIcon);
btnFreedraw.setActionCommand("Freedraw");
btnFreedraw.addActionListener(this);
btnFreedraw.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
GridBagConstraints gbc_tglbtnFreedraw = new GridBagConstraints();
gbc_tglbtnFreedraw.insets = new Insets(0, 0, 5, 5);
gbc_tglbtnFreedraw.gridx = 0;
gbc_tglbtnFreedraw.gridy = 0;
pnlTools.add(btnFreedraw, gbc_tglbtnFreedraw);
btnIcon = new ImageIcon("images/line_a.jpg");
btnLine = new JToggleButton(btnIcon);
btnLine.setToolTipText("Draw line");
btnIcon = new ImageIcon("images/line_b.jpg");
btnLine.setSelectedIcon(btnIcon);
btnLine.setActionCommand("Line");
btnLine.addActionListener(this);
btnLine.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
GridBagConstraints gbc_btnLine = new GridBagConstraints();
gbc_btnLine.insets = new Insets(0, 0, 5, 5);
gbc_btnLine.gridx = 1;
gbc_btnLine.gridy = 0;
pnlTools.add(btnLine, gbc_btnLine);
btnIcon = new ImageIcon("images/circle_a.jpg");
btnCircle = new JToggleButton(btnIcon);
btnCircle.setToolTipText("Draw circle");
btnIcon = new ImageIcon("images/circle_b.jpg");
btnCircle.setSelectedIcon(btnIcon);
btnCircle.setActionCommand("Circle");
btnCircle.addActionListener(this);
btnCircle.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
GridBagConstraints gbc_btnCircle = new GridBagConstraints();
gbc_btnCircle.insets = new Insets(0, 0, 5, 5);
gbc_btnCircle.gridx = 0;
gbc_btnCircle.gridy = 1;
pnlTools.add(btnCircle, gbc_btnCircle);
btnIcon = new ImageIcon("images/ellipse_a.jpg");
btnOval = new JToggleButton(btnIcon);
btnOval.setToolTipText("Draw ellipse");
btnIcon = new ImageIcon("images/ellipse_b.jpg");
btnOval.setSelectedIcon(btnIcon);
btnOval.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
btnOval.setActionCommand("Oval");
btnOval.addActionListener(this);
GridBagConstraints gbc_btnOval = new GridBagConstraints();
gbc_btnOval.insets = new Insets(0, 0, 5, 5);
gbc_btnOval.gridx = 1;
gbc_btnOval.gridy = 1;
pnlTools.add(btnOval, gbc_btnOval);
btnIcon = new ImageIcon("images/square_a.jpg");
btnSquare = new JToggleButton(btnIcon);
btnSquare.setToolTipText("Square");
btnIcon = new ImageIcon("images/square_b.jpg");
btnSquare.setSelectedIcon(btnIcon);
btnSquare.setActionCommand("Square");
btnSquare.addActionListener(this);
btnSquare.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
GridBagConstraints gbc_btnSquare = new GridBagConstraints();
gbc_btnSquare.insets = new Insets(0, 0, 5, 5);
gbc_btnSquare.gridx = 0;
gbc_btnSquare.gridy = 2;
pnlTools.add(btnSquare, gbc_btnSquare);
btnIcon = new ImageIcon("images/rectangle_a.jpg");
btnRectangle = new JToggleButton(btnIcon);
btnRectangle.setToolTipText("Draw rectangle");
btnIcon = new ImageIcon("images/rectangle_b.jpg");
btnRectangle.setSelectedIcon(btnIcon);
btnRectangle.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
btnRectangle.setActionCommand("Rectangle");
btnRectangle.addActionListener(this);
GridBagConstraints gbc_btnRectangle = new GridBagConstraints();
gbc_btnRectangle.insets = new Insets(0, 0, 5, 5);
gbc_btnRectangle.gridx = 1;
gbc_btnRectangle.gridy = 2;
pnlTools.add(btnRectangle, gbc_btnRectangle);
btnIcon = new ImageIcon("images/text_a.jpg");
btnText = new JToggleButton(btnIcon);
btnText.setToolTipText("Insert text");
btnIcon = new ImageIcon("images/text_b.jpg");
btnText.setSelectedIcon(btnIcon);
btnText.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
btnText.setActionCommand("Text");
btnText.addActionListener(this);
GridBagConstraints gbc_btnText = new GridBagConstraints();
gbc_btnText.insets = new Insets(0, 0, 5, 5);
gbc_btnText.gridx = 0;
gbc_btnText.gridy = 3;
pnlTools.add(btnText, gbc_btnText);
btnIcon = new ImageIcon("images/fill_a.jpg");
btnFill = new JToggleButton(btnIcon);
btnFill.setToolTipText("Fill");
btnIcon = new ImageIcon("images/fill_b.jpg");
btnFill.setSelectedIcon(btnIcon);
btnFill.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
btnFill.setActionCommand("Fill");
btnFill.addActionListener(this);
GridBagConstraints gbc_btnFill = new GridBagConstraints();
gbc_btnFill.insets = new Insets(0, 0, 5, 5);
gbc_btnFill.gridx = 1;
gbc_btnFill.gridy = 3;
pnlTools.add(btnFill, gbc_btnFill);
btnIcon = new ImageIcon("images/erase_a.jpg");
btnErase = new JToggleButton(btnIcon);
btnErase.setToolTipText("Erase");
btnIcon = new ImageIcon("images/erase_b.jpg");
btnErase.setSelectedIcon(btnIcon);
btnErase.setActionCommand("Erase");
btnErase.addActionListener(this);
btnErase.setBorder(new BevelBorder(BevelBorder.RAISED, null, null, null, null));
GridBagConstraints gbc_btnErase = new GridBagConstraints();
gbc_btnErase.insets = new Insets(0, 0, 5, 5);
gbc_btnErase.gridx = 0;
gbc_btnErase.gridy = 4;
pnlTools.add(btnErase, gbc_btnErase);
ButtonGroup group = new ButtonGroup();
group.add(btnFreedraw);
group.add(btnLine);
group.add(btnCircle);
group.add(btnOval);
group.add(btnSquare);
group.add(btnRectangle);
group.add(btnText);
group.add(btnErase);
JPanel pnlPreviews = new JPanel();
GridBagConstraints gbc_pnlPreviews = new GridBagConstraints();
gbc_pnlPreviews.gridwidth = 3;
gbc_pnlPreviews.fill = GridBagConstraints.BOTH;
gbc_pnlPreviews.gridx = 0;
gbc_pnlPreviews.gridy = 8;
pnlTools.add(pnlPreviews, gbc_pnlPreviews);
GridBagLayout gbl_pnlPreviews = new GridBagLayout();
gbl_pnlPreviews.columnWidths = new int[] {0, 0};
gbl_pnlPreviews.rowHeights = new int[] {0, 0, 0, 0, 0, 0, 0};
gbl_pnlPreviews.columnWeights = new double[] {1.0, Double.MIN_VALUE};
gbl_pnlPreviews.rowWeights = new double[] {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE};
pnlPreviews.setLayout(gbl_pnlPreviews);
JSeparator separator_2 = new JSeparator();
GridBagConstraints gbc_separator_2 = new GridBagConstraints();
gbc_separator_2.insets = new Insets(0, 0, 5, 0);
gbc_separator_2.gridx = 0;
gbc_separator_2.gridy = 1;
pnlPreviews.add(separator_2, gbc_separator_2);
JLabel label = new JLabel("");
GridBagConstraints gbc_label = new GridBagConstraints();
gbc_label.insets = new Insets(0, 0, 5, 0);
gbc_label.gridx = 0;
gbc_label.gridy = 2;
pnlPreviews.add(label, gbc_label);
lblPenSize = new JLabel("Pen Size");
lblPenSize.setBorder(new BevelBorder(BevelBorder.LOWERED, null, null, null, null));
GridBagConstraints gbc_lblPenSize = new GridBagConstraints();
gbc_lblPenSize.insets = new Insets(0, 0, 5, 0);
gbc_lblPenSize.gridx = 0;
gbc_lblPenSize.gridy = 3;
pnlPreviews.add(lblPenSize, gbc_lblPenSize);
cboPenSize = new JComboBox<String>();
cboPenSize.setModel(
new DefaultComboBoxModel<String>(
new String[] {"1", "2", "4", "6", "8", "10", "12", "14", "16", "18", "20"}));
cboPenSize.setSelectedIndex(1);
cboPenSize.setToolTipText("Pen and Eraser Size");
GridBagConstraints gbc_cboPenSize = new GridBagConstraints();
gbc_cboPenSize.insets = new Insets(0, 0, 5, 0);
gbc_cboPenSize.fill = GridBagConstraints.HORIZONTAL;
gbc_cboPenSize.gridx = 0;
gbc_cboPenSize.gridy = 4;
pnlPreviews.add(cboPenSize, gbc_cboPenSize);
cboPenSize.addItemListener(
new ItemListener() {
public void itemStateChanged(ItemEvent ie) {
_penWidth = Integer.parseInt(cboPenSize.getSelectedItem().toString());
pen.setPen(_penWidth, pen.getPen().getEndCap(), pen.getPen().getLineJoin());
canvas.setPen(pen);
revalidate();
}
});
pnlColorChooser = new JPanel();
getContentPane().add(pnlColorChooser, BorderLayout.SOUTH);
GridBagLayout gbl_pnlColorChooser = new GridBagLayout();
gbl_pnlColorChooser.columnWidths = new int[] {0, 62, 0, 36, 0};
gbl_pnlColorChooser.rowHeights = new int[] {0, 0, 0};
gbl_pnlColorChooser.columnWeights = new double[] {0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE};
gbl_pnlColorChooser.rowWeights = new double[] {0.0, 0.0, Double.MIN_VALUE};
pnlColorChooser.setLayout(gbl_pnlColorChooser);
btnColor = new JButton("Pen Color");
btnColor.setActionCommand("PenColor");
btnColor.addActionListener(this);
GridBagConstraints gbc_btnColor = new GridBagConstraints();
gbc_btnColor.insets = new Insets(0, 0, 5, 5);
gbc_btnColor.gridx = 0;
gbc_btnColor.gridy = 0;
pnlColorChooser.add(btnColor, gbc_btnColor);
lblColor = new JLabel("");
lblColor.setPreferredSize(new Dimension(79, 23));
lblColor.setMinimumSize(new Dimension(79, 23));
lblColor.setMaximumSize(new Dimension(79, 23));
lblColor.setOpaque(true);
lblColor.setBorder(new BevelBorder(BevelBorder.LOWERED, null, null, null, Color.BLACK));
lblColor.setBackground(Color.BLACK);
GridBagConstraints gbc_lblColor = new GridBagConstraints();
gbc_lblColor.insets = new Insets(0, 0, 0, 5);
gbc_lblColor.gridx = 0;
gbc_lblColor.gridy = 1;
pnlColorChooser.add(lblColor, gbc_lblColor);
JLabel lblSelectedTool = new JLabel("Selected Tool:");
lblSelectedTool.setFont(new Font("Tahoma", Font.ITALIC, 10));
GridBagConstraints gbc_lblSelectedTool = new GridBagConstraints();
gbc_lblSelectedTool.insets = new Insets(0, 0, 0, 5);
gbc_lblSelectedTool.gridx = 2;
gbc_lblSelectedTool.gridy = 1;
pnlColorChooser.add(lblSelectedTool, gbc_lblSelectedTool);
lblTool = new JLabel("");
lblTool.setHorizontalAlignment(SwingConstants.LEFT);
lblTool.setFont(new Font("Tahoma", Font.BOLD | Font.ITALIC, 12));
GridBagConstraints gbc_lblTool = new GridBagConstraints();
gbc_lblTool.gridx = 3;
gbc_lblTool.gridy = 1;
pnlColorChooser.add(lblTool, gbc_lblTool);
pnlColorChooser.setVisible(true);
JMenuBar menuMainMenu = new JMenuBar();
menuMainMenu.setName("");
setJMenuBar(menuMainMenu);
JMenu mnFile = new JMenu("File");
mnFile.setActionCommand("File");
menuMainMenu.add(mnFile);
mntmNew = new JMenuItem("New");
mntmNew.setMnemonic(KeyEvent.VK_N);
mntmNew.setActionCommand("New");
mntmNew.addActionListener(this);
mnFile.add(mntmNew);
mntmOpen = new JMenuItem("Open");
mntmOpen.setMnemonic(KeyEvent.VK_O);
mntmOpen.setActionCommand("Open");
mntmOpen.addActionListener(this);
mnFile.add(mntmOpen);
JSeparator separator = new JSeparator();
mnFile.add(separator);
mntmSave = new JMenuItem("Save");
mntmSave.setMnemonic(KeyEvent.VK_S);
mntmSave.setActionCommand("Save");
mntmSave.addActionListener(this);
mnFile.add(mntmSave);
mntmSaveAs = new JMenuItem("Save As");
mntmSaveAs.setActionCommand("SaveAs");
mntmSaveAs.addActionListener(this);
mnFile.add(mntmSaveAs);
JSeparator separator_1 = new JSeparator();
mnFile.add(separator_1);
mntmExit = new JMenuItem("Exit");
mntmExit.setMnemonic(KeyEvent.VK_E);
mntmExit.setActionCommand("Exit");
mntmExit.addActionListener(this);
mnFile.add(mntmExit);
JMenu mnNetwork = new JMenu("Network");
mnNetwork.setActionCommand("Network");
menuMainMenu.add(mnNetwork);
mntmConnect = new JMenuItem("Connect");
mntmConnect.setMnemonic(KeyEvent.VK_C);
mntmConnect.setActionCommand("Connect");
mntmConnect.addActionListener(this);
mnNetwork.add(mntmConnect);
mntmDisconnect = new JMenuItem("Disconnect");
mntmDisconnect.setMnemonic(KeyEvent.VK_D);
mntmDisconnect.setActionCommand("Disconnect");
mntmDisconnect.addActionListener(this);
mntmDisconnect.setEnabled(false);
mnNetwork.add(mntmDisconnect);
JSeparator separator_3 = new JSeparator();
mnNetwork.add(separator_3);
addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
closeOperation();
}
});
}
/** For recv points from the server PUBLIC method! */
public void sendPoints(PointPacket pnt) {
canvas.drawPoints(pnt);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (e.getActionCommand().equalsIgnoreCase("Freedraw")) {
canvas.setShape(0);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/free_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Line")) {
canvas.setShape(1);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/line_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Rectangle")) {
canvas.setShape(2);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/rectangle_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Square")) {
canvas.setShape(3);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/square_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Oval")) {
canvas.setShape(4);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/ellipse_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Circle")) {
canvas.setShape(5);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/circle_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Text")) {
canvas.setTextDialog(this);
canvas.setShape(6);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/text_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Erase")) {
canvas.setShape(7);
pen.setPen(pen.getPen().getLineWidth(), BasicStroke.CAP_SQUARE, BasicStroke.JOIN_BEVEL);
canvas.setPen(pen);
btnIcon = new ImageIcon("images/erase_a.jpg");
lblTool.setIcon(btnIcon);
} else if (e.getActionCommand().equalsIgnoreCase("Fill")) {
JToggleButton btn = (JToggleButton) e.getSource();
styleBox.setMode(btn.isSelected());
canvas.setMode(styleBox.getMode());
} else if (e.getActionCommand().equalsIgnoreCase("PenColor")) {
System.out.println(e.getActionCommand().toString());
Color prevColor = lblColor.getBackground();
Color newColor = JColorChooser.showDialog(this, "Choose Background Color", prevColor);
pen.set_penColor(newColor);
lblColor.setBackground(newColor);
revalidate();
} else if (e.getActionCommand().equalsIgnoreCase("Open")) {
fileMenu.setCanvas(canvas);
fileMenu.open();
} else if (e.getActionCommand().equalsIgnoreCase("Save")) {
fileMenu.setCanvas(canvas);
fileMenu.save();
} else if (e.getActionCommand().equalsIgnoreCase("SaveAs")) {
fileMenu.setCanvas(canvas);
fileMenu.saveAs();
} else if (e.getActionCommand().equalsIgnoreCase("New")) {
fileMenu.setCanvas(canvas);
fileMenu.newCanvas();
} else if (e.getActionCommand().equalsIgnoreCase("Exit")) {
closeOperation();
} else if (e.getActionCommand().equalsIgnoreCase("Connect")) {
networkMenu.setCanvas(this, canvas);
networkMenu.connect(this);
} else if (e.getActionCommand().equalsIgnoreCase("Disconnect")) {
networkMenu.setCanvas(this, canvas);
networkMenu.disconnect(" left the session.");
}
revalidate();
repaint();
}
