Example usage for javax.swing JLabel JLabel

Introduction

In this page you can find the example usage for javax.swing JLabel JLabel.

Prototype

public JLabel(Icon image) 

Source Link

Document

Creates a JLabel instance with the specified image.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Drag Image");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Icon icon = new ImageIcon("image.jpg");
    JLabel label = new JLabel(icon);
    label.setTransferHandler(new ImageSelection());
    MouseListener listener = new MouseAdapter() {
        public void mousePressed(MouseEvent me) {
            JComponent comp = (JComponent) me.getSource();
            TransferHandler handler = comp.getTransferHandler();
            handler.exportAsDrag(comp, me, TransferHandler.COPY);
        }//ww  w  .ja va  2s.c  o  m
    };
    label.addMouseListener(listener);
    frame.add(new JScrollPane(label), BorderLayout.CENTER);

    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JTextField[] txtAllAverages;/* ww  w .  j a va 2 s  . c  o  m*/
    int testCount = 2;

    txtAllAverages = new JTextField[testCount];

    JPanel inputControls = new JPanel(new BorderLayout(5, 5));

    JPanel inputControlsLabels = new JPanel(new GridLayout(0, 1, 3, 3));
    JPanel inputControlsFields = new JPanel(new GridLayout(0, 1, 3, 3));
    inputControls.add(inputControlsLabels, BorderLayout.WEST);
    inputControls.add(inputControlsFields, BorderLayout.CENTER);
    for (int i = 0; i < testCount; i++) {
        inputControlsLabels.add(new JLabel("Test score: "));
        JTextField field = new JTextField(10);
        inputControlsFields.add(field);
        txtAllAverages[i] = field;
    }

    JPanel controls = new JPanel(new FlowLayout(FlowLayout.CENTER, 5, 2));

    controls.add(new JButton("Reset"));
    controls.add(new JButton("Submit"));

    JPanel gui = new JPanel(new BorderLayout(10, 10));
    gui.setBorder(new TitledBorder("Averages"));
    gui.add(inputControls, BorderLayout.CENTER);
    gui.add(controls, BorderLayout.SOUTH);

    JFrame f = new JFrame();
    f.setContentPane(gui);

    f.pack();
    f.setLocationByPlatform(true);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Robot robot = new Robot();
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    BufferedImage image = robot.createScreenCapture(new Rectangle(d));
    BufferedImage sub = image.getSubimage(0, 0, 400, 400);
    File f = new File("SubImage.png");
    ImageIO.write(sub, "png", f);
    final ImageIcon im = new ImageIcon(f.toURI().toURL());

    Runnable r = new Runnable() {

        @Override//w  w  w  .  ja  v  a2s. c om
        public void run() {
            JOptionPane.showMessageDialog(null, new JLabel(im));
        }
    };
    SwingUtilities.invokeLater(r);
}

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From source file:JTextPaneWithIcon.java

public static void main(String args[]) {
    JFrame frame = new JFrame("TextPane Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    StyleContext context = new StyleContext();
    StyledDocument document = new DefaultStyledDocument(context);

    Style labelStyle = context.getStyle(StyleContext.DEFAULT_STYLE);

    Icon icon = new ImageIcon("yourFile.gif");
    JLabel label = new JLabel(icon);
    StyleConstants.setComponent(labelStyle, label);

    try {//from   w  w  w. ja va2  s  .co  m
        document.insertString(document.getLength(), "Ignored", labelStyle);
    } catch (BadLocationException badLocationException) {
        System.err.println("Oops");
    }

    JTextPane textPane = new JTextPane(document);
    textPane.setEditable(false);
    JScrollPane scrollPane = new JScrollPane(textPane);
    frame.add(scrollPane, BorderLayout.CENTER);

    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String mapUrlPath = "http://www.java2s.com/style/download.png";
    URL mapUrl = new URL(mapUrlPath);
    BufferedImage mapImage = ImageIO.read(mapUrl);
    Image newMapImage = Toolkit.getDefaultToolkit()
            .createImage(new FilteredImageSource(mapImage.getSource(), new GrayToColorFilter(Color.red)));
    ImageIcon mapIcon = new ImageIcon(mapImage);
    ImageIcon newMapIcon = new ImageIcon(newMapImage);

    JPanel imagePanel = new JPanel();
    imagePanel.add(new JLabel(mapIcon));
    imagePanel.add(new JLabel(newMapIcon));

    JOptionPane.showMessageDialog(null, imagePanel);
}

---

From source file:Main.java

public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            JFrame f = new JFrame();
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            BufferedImage image = new BufferedImage(400, 300, BufferedImage.TYPE_INT_RGB);
            Graphics2D imageGraphics = image.createGraphics();
            GradientPaint gp = new GradientPaint(20f, 20f, Color.red, 380f, 280f, Color.orange);
            imageGraphics.setPaint(gp);/*from   w w  w. j a  va  2s .  c  o  m*/
            imageGraphics.fillRect(0, 0, 400, 300);

            JLabel textLabel = new JLabel("java2s.com");
            textLabel.setSize(textLabel.getPreferredSize());

            Dimension d = textLabel.getPreferredSize();
            BufferedImage bi = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_ARGB);
            Graphics g = bi.createGraphics();
            g.setColor(new Color(255, 200, 255, 128));
            g.fillRoundRect(0, 0, bi.getWidth(f), bi.getHeight(f), 15, 10);
            g.setColor(Color.black);
            textLabel.paint(g);
            Graphics g2 = image.getGraphics();
            g2.drawImage(bi, 20, 20, f);

            ImageIcon ii = new ImageIcon(image);
            JLabel imageLabel = new JLabel(ii);

            f.getContentPane().add(imageLabel);
            f.pack();

            f.setVisible(true);
        }
    });
}

---

From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);/*from w  w  w  . j  a v a  2s .  co  m*/
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

            TreePath newPath = path.pathByAddingChild(newNode);
            tree.makeVisible(newPath);
            tree.scrollRectToVisible(tree.getPathBounds(newPath));
            return true;
        }
    });

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.USE_SELECTION);
    f.setSize(300, 400);
    f.setVisible(true);
}

---

From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);/*from  w w w  .  j av  a  2s.  c  o  m*/
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

            TreePath newPath = path.pathByAddingChild(newNode);
            tree.makeVisible(newPath);
            tree.scrollRectToVisible(tree.getPathBounds(newPath));
            return true;
        }
    });

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.INSERT);
    f.setSize(300, 400);
    f.setVisible(true);
}

---

From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);/*from w  w  w .j a  v  a 2 s .co  m*/
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

            TreePath newPath = path.pathByAddingChild(newNode);
            tree.makeVisible(newPath);
            tree.scrollRectToVisible(tree.getPathBounds(newPath));
            return true;
        }
    });

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.ON_OR_INSERT);
    f.setSize(300, 400);
    f.setVisible(true);
}

---

From source file:MainClass.java

public static void main(String argv[]) {

    java.net.URL u = null;/*from   w w w .  j  a  v  a2s. c o  m*/
    try {
        u = new java.net.URL("http://www.java2s.com/");
    } catch (java.net.MalformedURLException ignored) {
    }

    JFormattedTextField ftf1 = new JFormattedTextField(u);
    JFormattedTextField ftf2 = new JFormattedTextField(u);

    ftf2.setInputVerifier(new InputVerifier() {
        public boolean verify(JComponent input) {
            if (!(input instanceof JFormattedTextField))
                return true;
            return ((JFormattedTextField) input).isEditValid();
        }
    });

    JPanel p = new JPanel(new GridLayout(0, 2, 3, 8));
    p.add(new JLabel("plain JFormattedTextField:"));
    p.add(ftf1);
    p.add(new JLabel("FTF with InputVerifier:"));
    p.add(ftf2);
    p.add(new JLabel("plain JTextField:"));
    p.add(new JTextField(u.toString()));

    JFrame f = new JFrame("MainClass");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JLabel("Try to delete the colon in each field."), "North");
    f.getContentPane().add(p, "Center");
    f.pack();
    f.setVisible(true);
}

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