Example usage for javax.swing JApplet JApplet

Introduction

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

Prototype

public JApplet() throws HeadlessException 

Source Link

Document

Creates a swing applet instance.

Usage

From source file:org.carrot2.workbench.vis.aduna.AdunaClusterMapViewPage.java

private void createAdunaControl(Composite parent) {
    /*//from w w w . ja  v a 2  s . co  m
     * If <code>true</code>, try some dirty hacks to avoid flicker on Windows.
     */
    final boolean windowsFlickerHack = true;
    if (windowsFlickerHack) {
        System.setProperty("sun.awt.noerasebackground", "true");
    }

    this.scrollable = new Composite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
    scrollable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    final GridLayout layout = new GridLayout();
    layout.marginBottom = 0;
    layout.marginLeft = 0;
    layout.marginRight = 0;
    layout.marginTop = 0;
    layout.horizontalSpacing = 0;
    layout.verticalSpacing = 0;
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    scrollable.setLayout(layout);

    embedded = new Composite(scrollable, SWT.NO_BACKGROUND | SWT.EMBEDDED);
    embedded.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    final Frame frame = SWT_AWT.new_Frame(embedded);
    frame.setLayout(new java.awt.BorderLayout());

    // LINGO-446: flicker fix; see "Creating a Root Pane Container" in http://www.eclipse.org/articles/article.php?file=Article-Swing-SWT-Integration/index.html
    final JApplet applet = new JApplet();
    frame.add(applet);
    applet.setLayout(new java.awt.BorderLayout());

    final JScrollPane scrollPanel = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_NEVER,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    scrollPanel.setDoubleBuffered(true);

    scrollPanel.setBorder(BorderFactory.createEmptyBorder());
    applet.getContentPane().add(scrollPanel, java.awt.BorderLayout.CENTER);

    final ClusterMapFactory factory = ClusterMapFactory.createFactory();
    final ClusterMap clusterMap = factory.createClusterMap();
    final ClusterMapMediator mapMediator = factory.createMediator(clusterMap);
    this.mapMediator = mapMediator;

    final ClusterGraphPanel graphPanel = mapMediator.getGraphPanel();
    graphPanel.setDoubleBuffered(true);
    scrollPanel.setViewportView(graphPanel);

    scrollable.addControlListener(new ControlAdapter() {
        @Override
        public void controlResized(ControlEvent e) {
            updateScrollBars();
        }
    });

    final SelectionAdapter adapter = new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            ScrollBar hbar = scrollable.getHorizontalBar();
            ScrollBar vbar = scrollable.getVerticalBar();
            final java.awt.Rectangle viewport = new java.awt.Rectangle(hbar.getSelection(), vbar.getSelection(),
                    hbar.getThumb(), vbar.getThumb());
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    graphPanel.scrollRectToVisible(viewport);
                }
            });
        }
    };
    scrollable.getVerticalBar().addSelectionListener(adapter);
    scrollable.getHorizontalBar().addSelectionListener(adapter);

    final Runnable updateScrollBarsAsync = new Runnable() {
        public void run() {
            updateScrollBars();
        }
    };

    graphPanel.addComponentListener(new ComponentAdapter() {
        @Override
        public void componentShown(ComponentEvent e) {
            graphPanelSize = graphPanel.getPreferredSize();
            Display.getDefault().asyncExec(updateScrollBarsAsync);
        }

        @Override
        public void componentResized(ComponentEvent e) {
            graphPanelSize = graphPanel.getPreferredSize();
            Display.getDefault().asyncExec(updateScrollBarsAsync);
        }
    });
}

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