Examples with DataFlavor java.awt.datatransfer.DataFlavor used on opensource projects

Example 1 with DataFlavor

use of java.awt.datatransfer.DataFlavor in project jna by java-native-access.

the class AlphaMaskDemo2 method run.

public void run() {
    // Must find a graphics configuration with a depth of 32 bits
    GraphicsConfiguration gconfig = WindowUtils.getAlphaCompatibleGraphicsConfiguration();
    frame = new JFrame("Alpha Mask Demo");
    alphaWindow = new JWindow(frame, gconfig);
    icon = new JLabel();
    icon.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    alphaWindow.getContentPane().add(icon);
    JButton quit = new JButton("Quit");
    JLabel label = new JLabel("Drag this window by its image");
    label.setHorizontalAlignment(SwingConstants.CENTER);
    alphaWindow.getContentPane().add(label, BorderLayout.NORTH);
    alphaWindow.getContentPane().add(quit, BorderLayout.SOUTH);
    quit.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            System.exit(0);
        }
    });
    MouseInputAdapter handler = new MouseInputAdapter() {

        private Point offset;

        public void mousePressed(MouseEvent e) {
            if (SwingUtilities.isLeftMouseButton(e))
                offset = e.getPoint();
        }

        public void mouseReleased(MouseEvent e) {
            offset = null;
        }

        public void mouseDragged(MouseEvent e) {
            if (offset != null) {
                Window w = (Window) e.getSource();
                Point where = e.getPoint();
                where.translate(-offset.x, -offset.y);
                Point loc = w.getLocationOnScreen();
                loc.translate(where.x, where.y);
                w.setLocation(loc.x, loc.y);
            }
        }
    };
    alphaWindow.addMouseListener(handler);
    alphaWindow.addMouseMotionListener(handler);
    JPanel p = new JPanel(new BorderLayout(8, 8));
    p.setBorder(new EmptyBorder(8, 8, 8, 8));
    p.setTransferHandler(new TransferHandler() {

        private static final long serialVersionUID = 1L;

        public boolean canImport(JComponent comp, DataFlavor[] transferFlavors) {
            List<DataFlavor> list = Arrays.asList(transferFlavors);
            if (list.contains(URL_FLAVOR) || list.contains(URI_LIST_FLAVOR) || list.contains(DataFlavor.imageFlavor) || list.contains(DataFlavor.javaFileListFlavor)) {
                return true;
            }
            if (DataFlavor.selectBestTextFlavor(transferFlavors) != null) {
                return true;
            }
            System.err.println("No acceptable flavor found in " + Arrays.asList(transferFlavors));
            return false;
        }

        public boolean importData(JComponent comp, Transferable t) {
            try {
                if (t.isDataFlavorSupported(URL_FLAVOR)) {
                    URL url = (URL) t.getTransferData(URL_FLAVOR);
                    setImage(Toolkit.getDefaultToolkit().getImage(url));
                    return true;
                }
                if (t.isDataFlavorSupported(URI_LIST_FLAVOR)) {
                    String s = (String) t.getTransferData(URI_LIST_FLAVOR);
                    String[] uris = s.split("[\r\n]");
                    if (uris.length > 0) {
                        URL url = new URL(uris[0]);
                        setImage(Toolkit.getDefaultToolkit().getImage(url));
                        return true;
                    }
                    return false;
                }
                if (t.isDataFlavorSupported(DataFlavor.imageFlavor)) {
                    Image image = (Image) t.getTransferData(DataFlavor.imageFlavor);
                    setImage(image);
                    return true;
                }
                if (t.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
                    List<File> files = (List<File>) t.getTransferData(DataFlavor.javaFileListFlavor);
                    File f = files.get(0);
                    URL url = new URL("file://" + f.toURI().toURL().getPath());
                    Image image = Toolkit.getDefaultToolkit().getImage(url);
                    setImage(image);
                    return true;
                }
                DataFlavor flavor = DataFlavor.selectBestTextFlavor(t.getTransferDataFlavors());
                if (flavor != null) {
                    Reader reader = flavor.getReaderForText(t);
                    char[] buf = new char[512];
                    StringBuilder b = new StringBuilder();
                    int count;
                    // encoding wrong
                    while ((count = reader.read(buf)) > 0) {
                        for (int i = 0; i < count; i++) {
                            if (buf[i] != 0)
                                b.append(buf, i, 1);
                        }
                    }
                    String html = b.toString();
                    Pattern p = Pattern.compile("<img.*src=\"([^\\\"\">]+)\"", Pattern.CANON_EQ | Pattern.UNICODE_CASE);
                    Matcher m = p.matcher(html);
                    if (m.find()) {
                        URL url = new URL(m.group(1));
                        System.out.println("Load image from " + url);
                        Image image = Toolkit.getDefaultToolkit().getImage(url);
                        setImage(image);
                        return true;
                    }
                    System.err.println("Can't parse text: " + html);
                    return false;
                }
                System.err.println("No flavor available: " + Arrays.asList(t.getTransferDataFlavors()));
            } catch (UnsupportedFlavorException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (Throwable e) {
                e.printStackTrace();
            }
            return false;
        }
    });
    p.add(new JLabel("<html><center>Drop an image with an alpha channel onto this window<br>" + "You may also adjust the overall transparency with the slider</center></html>"), BorderLayout.NORTH);
    p.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    final JSlider slider = new JSlider(0, 255, 255);
    slider.addChangeListener(new ChangeListener() {

        public void stateChanged(ChangeEvent e) {
            int value = slider.getValue();
            WindowUtils.setWindowAlpha(alphaWindow, value / 255f);
        }
    });
    p.add(slider, BorderLayout.SOUTH);
    frame.getContentPane().add(p);
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    centerOnScreen(frame);
    frame.setVisible(true);
    WindowUtils.setWindowTransparent(alphaWindow, true);
    alphaWindow.setLocation(frame.getX() + frame.getWidth() + 4, frame.getY());
    try {
        URL url = getClass().getResource("tardis.png");
        if (url != null) {
            setImage(Toolkit.getDefaultToolkit().getImage(url));
        }
    } catch (Exception e) {
    }
}

Example 2 with DataFlavor

use of java.awt.datatransfer.DataFlavor in project jdk8u_jdk by JetBrains.

the class bug8059739 method runTest.

private static void runTest() throws Exception {
    String testString = "my string";
    JTextField tf = new JTextField(testString);
    tf.selectAll();
    Clipboard clipboard = new Clipboard("clip");
    tf.getTransferHandler().exportToClipboard(tf, clipboard, TransferHandler.COPY);
    DataFlavor[] dfs = clipboard.getAvailableDataFlavors();
    for (DataFlavor df : dfs) {
        String charset = df.getParameter("charset");
        if (InputStream.class.isAssignableFrom(df.getRepresentationClass()) && charset != null) {
            BufferedReader br = new BufferedReader(new InputStreamReader((InputStream) clipboard.getData(df), charset));
            String s = br.readLine();
            System.out.println("Content: '" + s + "'");
            passed &= s.contains(testString);
        }
    }
}

Example 3 with DataFlavor

use of java.awt.datatransfer.DataFlavor in project jdk8u_jdk by JetBrains.

the class MappingGenerationTest method test5.

/**
     * Verifies that a flavor doesn't have any flavor-to-native mappings after
     * a call to setNativesForFlavor() with this flavor and an empty native
     * array as arguments.
     */
public static void test5() {
    final DataFlavor flavor = new DataFlavor("text/plain-TEST5; charset=Unicode", null);
    fm.getNativesForFlavor(flavor);
    fm.setNativesForFlavor(flavor, new String[0]);
    List<String> natives = fm.getNativesForFlavor(flavor);
    if (!natives.isEmpty()) {
        System.err.println("natives=" + natives);
        throw new RuntimeException("Test failed");
    }
}

Example 4 with DataFlavor

use of java.awt.datatransfer.DataFlavor in project jdk8u_jdk by JetBrains.

the class MappingGenerationTest method test1.

/**
     * Verifies that Lists returned from getNativesForFlavor() and
     * getFlavorsForNative() are not modified with a subsequent call
     * to addUnencodedNativeForFlavor() and addFlavorForUnencodedNative()
     * respectively.
     */
public static void test1() {
    DataFlavor df = new DataFlavor("text/plain-test1", null);
    String nat = "native1";
    List<String> natives = fm.getNativesForFlavor(df);
    fm.addUnencodedNativeForFlavor(df, nat);
    List<String> nativesNew = fm.getNativesForFlavor(df);
    if (natives.equals(nativesNew)) {
        System.err.println("orig=" + natives);
        System.err.println("new=" + nativesNew);
        throw new RuntimeException("Test failed");
    }
    List<DataFlavor> flavors = fm.getFlavorsForNative(nat);
    fm.addFlavorForUnencodedNative(nat, df);
    List<DataFlavor> flavorsNew = fm.getFlavorsForNative(nat);
    if (flavors.equals(flavorsNew)) {
        System.err.println("orig=" + flavors);
        System.err.println("new=" + flavorsNew);
        throw new RuntimeException("Test failed");
    }
}

Example 5 with DataFlavor

use of java.awt.datatransfer.DataFlavor in project jdk8u_jdk by JetBrains.

the class MappingGenerationTest method test2.

/**
     * Verifies that SystemFlavorMap is not affected by modification of
     * the Lists returned from getNativesForFlavor() and
     * getFlavorsForNative().
     */
public static void test2() {
    DataFlavor df = new DataFlavor("text/plain-test2", null);
    String nat = "native2";
    DataFlavor extraDf = new DataFlavor("text/test", null);
    List<String> natives = fm.getNativesForFlavor(df);
    natives.add("Should not be here");
    java.util.List nativesNew = fm.getNativesForFlavor(df);
    if (natives.equals(nativesNew)) {
        System.err.println("orig=" + natives);
        System.err.println("new=" + nativesNew);
        throw new RuntimeException("Test failed");
    }
    List<DataFlavor> flavors = fm.getFlavorsForNative(nat);
    flavors.add(extraDf);
    java.util.List flavorsNew = fm.getFlavorsForNative(nat);
    if (flavors.equals(flavorsNew)) {
        System.err.println("orig=" + flavors);
        System.err.println("new=" + flavorsNew);
        throw new RuntimeException("Test failed");
    }
}