Example usage for java.awt Graphics2D dispose

List of usage examples for java.awt Graphics2D dispose

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Introduction

In this page you can find the example usage for java.awt Graphics2D dispose.

Prototype

public abstract void dispose();

Source Link

Document

Disposes of this graphics context and releases any system resources that it is using.

Usage

From source file:com.springsecurity.plugin.util.ImageResizer.java

public BufferedImage scale(File icon, int targetWidth, int targetHeight) {
    BufferedImage ret = null;//  w w w. j a  v  a 2 s. c  om
    if (icon.exists()) {
        try {
            BufferedImage img = ImageIO.read(icon);
            ret = img;
            int type = (img.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB
                    : BufferedImage.TYPE_INT_ARGB;
            BufferedImage scratchImage = null;
            Graphics2D g2 = null;
            int w = img.getWidth();
            int h = img.getHeight();
            int prevW = w;
            int prevH = h;
            do {
                if (w > targetWidth) {
                    w /= 2;
                    w = (w < targetWidth) ? targetWidth : w;
                }
                if (h > targetHeight) {
                    h /= 2;
                    h = (h < targetHeight) ? targetHeight : h;
                }
                if (scratchImage == null) {
                    scratchImage = new BufferedImage(w, h, type);
                    g2 = scratchImage.createGraphics();
                }

                g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                        RenderingHints.VALUE_INTERPOLATION_BILINEAR);
                g2.drawImage(ret, 0, 0, w, h, 0, 0, prevW, prevH, null);

                prevW = w;
                prevH = h;
                ret = scratchImage;
            } while (w != targetWidth || h != targetHeight);
            if (g2 != null) {
                g2.dispose();
            }
            if (targetWidth != ret.getWidth() || targetHeight != ret.getHeight()) {
                scratchImage = new BufferedImage(targetWidth, targetHeight, type);
                g2 = scratchImage.createGraphics();
                g2.drawImage(ret, 0, 0, null);
                g2.dispose();
                ret = scratchImage;
            }
        } catch (IOException e) {
        }
    }
    return ret;
}

From source file:net.sf.jasperreports.swing.JRViewerPanel.java

protected Image getPageErrorImage() {
    PrintPageFormat pageFormat = viewerContext.getPageFormat();
    Image image = new BufferedImage((int) (pageFormat.getPageWidth() * realZoom) + 1,
            (int) (pageFormat.getPageHeight() * realZoom) + 1, BufferedImage.TYPE_INT_RGB);

    AffineTransform transform = new AffineTransform();
    transform.scale(realZoom, realZoom);

    Graphics2D grx = (Graphics2D) image.getGraphics();
    try {/* w  w w.  j av  a 2  s.c  o  m*/
        grx.transform(transform);

        drawPageError(grx);
    } finally {
        grx.dispose();
    }

    return image;
}

From source file:net.rptools.maptool.client.MapTool.java

public static BufferedImage takeMapScreenShot(final PlayerView view) {
    final ZoneRenderer renderer = clientFrame.getCurrentZoneRenderer();
    if (renderer == null) {
        return null;
    }/* www . java 2 s .c  o  m*/

    Dimension size = renderer.getSize();
    if (size.width == 0 || size.height == 0) {
        return null;
    }

    BufferedImage image = new BufferedImage(size.width, size.height, Transparency.OPAQUE);
    final Graphics2D g = image.createGraphics();
    g.setClip(0, 0, size.width, size.height);

    // Have to do this on the EDT so that there aren't any odd side effects
    // of rendering
    // using a renderer that's on screen
    if (!EventQueue.isDispatchThread()) {
        try {
            EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    renderer.renderZone(g, view);
                }
            });
        } catch (InterruptedException ie) {
            MapTool.showError("While creating snapshot", ie);
        } catch (InvocationTargetException ite) {
            MapTool.showError("While creating snapshot", ite);
        }
    } else {
        renderer.renderZone(g, view);
    }

    g.dispose();

    return image;
}

From source file:edu.umn.cs.spatialHadoop.operations.GeometricPlot.java

/**
 * Draws an image that can be used as a scale for heat maps generated using
 * Plot or PlotPyramid.//from  www  .j a  v a 2 s. c  om
 * @param output - Output path
 * @param valueRange - Range of values of interest
 * @param width - Width of the generated image
 * @param height - Height of the generated image
 * @throws IOException
 */
public static void drawScale(Path output, MinMax valueRange, int width, int height) throws IOException {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = image.createGraphics();
    g.setBackground(Color.BLACK);
    g.clearRect(0, 0, width, height);

    // fix this part to work according to color1, color2 and gradient type
    for (int y = 0; y < height; y++) {
        Color color = NASARectangle.calculateColor(y);
        g.setColor(color);
        g.drawRect(width * 3 / 4, y, width / 4, 1);
    }

    int fontSize = 24;
    g.setFont(new Font("Arial", Font.BOLD, fontSize));
    int step = (valueRange.maxValue - valueRange.minValue) * fontSize * 10 / height;
    step = (int) Math.pow(10, Math.round(Math.log10(step)));
    int min_value = valueRange.minValue / step * step;
    int max_value = valueRange.maxValue / step * step;

    for (int value = min_value; value <= max_value; value += step) {
        int y = fontSize + (height - fontSize)
                - value * (height - fontSize) / (valueRange.maxValue - valueRange.minValue);
        g.setColor(Color.WHITE);
        g.drawString(String.valueOf(value), 5, y);
    }

    g.dispose();

    FileSystem fs = output.getFileSystem(new Configuration());
    FSDataOutputStream outStream = fs.create(output, true);
    ImageIO.write(image, "png", outStream);
    outStream.close();
}

From source file:GifDecoder.java

/**
 * Creates new frame image from current data (and previous
 * frames as specified by their disposition codes).
 *//*from  ww w . j  a  v  a2  s .  co m*/
protected void setPixels() {
    // expose destination image's pixels as int array
    int[] dest = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();

    // fill in starting image contents based on last image's dispose code
    if (lastDispose > 0) {
        if (lastDispose == 3) {
            // use image before last
            int n = frameCount - 2;
            if (n > 0) {
                lastImage = getFrame(n - 1);
            } else {
                lastImage = null;
            }
        }

        if (lastImage != null) {
            int[] prev = ((DataBufferInt) lastImage.getRaster().getDataBuffer()).getData();
            System.arraycopy(prev, 0, dest, 0, width * height);
            // copy pixels

            if (lastDispose == 2) {
                // fill last image rect area with background color
                Graphics2D g = image.createGraphics();
                Color c = null;
                if (transparency) {
                    c = new Color(0, 0, 0, 0); // assume background is transparent
                } else {
                    c = new Color(lastBgColor); // use given background color
                }
                g.setColor(c);
                g.setComposite(AlphaComposite.Src); // replace area
                g.fill(lastRect);
                g.dispose();
            }
        }
    }

    // copy each source line to the appropriate place in the destination
    int pass = 1;
    int inc = 8;
    int iline = 0;
    for (int i = 0; i < ih; i++) {
        int line = i;
        if (interlace) {
            if (iline >= ih) {
                pass++;
                switch (pass) {
                case 2:
                    iline = 4;
                    break;
                case 3:
                    iline = 2;
                    inc = 4;
                    break;
                case 4:
                    iline = 1;
                    inc = 2;
                }
            }
            line = iline;
            iline += inc;
        }
        line += iy;
        if (line < height) {
            int k = line * width;
            int dx = k + ix; // start of line in dest
            int dlim = dx + iw; // end of dest line
            if ((k + width) < dlim) {
                dlim = k + width; // past dest edge
            }
            int sx = i * iw; // start of line in source
            while (dx < dlim) {
                // map color and insert in destination
                int index = ((int) pixels[sx++]) & 0xff;
                int c = act[index];
                if (c != 0) {
                    dest[dx] = c;
                }
                dx++;
            }
        }
    }
}

From source file:com.itextpdf.text.pdf.pdfcleanup.PdfCleanUpRenderListener.java

private void cleanImage(BufferedImage image, List<Rectangle> areasToBeCleaned) {
    Graphics2D graphics = image.createGraphics();
    graphics.setColor(CLEANED_AREA_FILL_COLOR);

    // A rectangle in the areasToBeCleaned list is treated to be in standard [0, 1]x[0,1] image space
    // (y varies from bottom to top and x from left to right), so we should scale the rectangle and also
    // invert and shear the y axe
    for (Rectangle rect : areasToBeCleaned) {
        int scaledBottomY = (int) Math.ceil(rect.getBottom() * image.getHeight());
        int scaledTopY = (int) Math.floor(rect.getTop() * image.getHeight());

        int x = (int) Math.ceil(rect.getLeft() * image.getWidth());
        int y = scaledTopY * -1 + image.getHeight();
        int width = (int) Math.floor(rect.getRight() * image.getWidth()) - x;
        int height = scaledTopY - scaledBottomY;

        graphics.fillRect(x, y, width, height);
    }//from  w  w  w .  j  a  v  a2s .co m

    graphics.dispose();
}

From source file:edu.ku.brc.specify.utilapps.sp5utils.Sp5Forms.java

public void generate() {
    BufferedImage bufImage = null;
    if (formFrame != null) {
        Component topComp = formFrame.getContentPane();

        Rectangle rect = topComp.getBounds();
        if (rect.width < 1 || rect.height < 1) {
            System.err.println("Can't create image. " + selectedForm.getTitle());
        } else {/*from   w  w  w . j  av  a  2 s  .  c  o m*/
            bufImage = new BufferedImage(rect.width, rect.height, (BufferedImage.TYPE_INT_ARGB));
            Graphics2D g2 = bufImage.createGraphics();
            topComp.paint(g2);
            g2.dispose();
        }
    }

    if (formIndex < forms.size()) {
        selectedForm = forms.get(formIndex);

        showForm();

        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                        formFrame.pack();
                        formFrame.repaint();
                    }
                });
            }
        });
    }

    File dir = new File("conversions" + File.separator + namePair.second + "_6" + File.separator + "forms");
    if (!dir.exists()) {
        dir.mkdirs();
    }

    if (bufImage != null) {
        String fName = dir.getAbsolutePath() + File.separator + formName + ".png";
        try {
            File imgFile = new File(fName);
            ImageIO.write(bufImage, "PNG", imgFile);

        } catch (Exception e) {
            edu.ku.brc.af.core.UsageTracker.incrHandledUsageCount();
            edu.ku.brc.exceptions.ExceptionTracker.getInstance().capture(ERDVisualizer.class, e);
            e.printStackTrace();
        }
    }

    if (formIndex >= forms.size()) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                        if (formFrame != null)
                            formFrame.setVisible(false);
                        createIndex();
                        UIRegistry.showLocalizedMsg("Done");
                    }
                });
            }
        });
    }

    if (selectedForm != null) {
        formName = selectedForm.getFileName();
    }
}

From source file:com.neophob.sematrix.generator.Textwriter.java

/**
 * create image./*  w ww  .  j  a  v a  2 s  .  c om*/
 *
 * @param text the text
 */
public void createTextImage(String text) {
    //only load if needed
    if (StringUtils.equals(text, this.text)) {
        return;
    }

    this.text = text;

    BufferedImage img = new BufferedImage(TEXT_BUFFER_X_SIZE, internalBufferYSize, BufferedImage.TYPE_INT_RGB);

    Graphics2D g2 = img.createGraphics();
    FontRenderContext frc = g2.getFontRenderContext();
    TextLayout layout = new TextLayout(text, font, frc);
    Rectangle2D rect = layout.getBounds();

    int h = (int) (0.5f + rect.getHeight());
    maxXPos = (int) (0.5f + rect.getWidth()) + 5;
    ypos = internalBufferYSize - (internalBufferYSize - h) / 2;

    img = new BufferedImage(maxXPos, internalBufferYSize, BufferedImage.TYPE_INT_RGB);
    g2 = img.createGraphics();

    g2.setColor(color);
    g2.setFont(font);
    g2.setClip(0, 0, maxXPos, internalBufferYSize);
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);

    g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g2.drawString(text, xpos, ypos);
    DataBufferInt dbi = (DataBufferInt) img.getRaster().getDataBuffer();
    textBuffer = dbi.getData();
    g2.dispose();

    wait = 0;
    xofs = 0;
    scrollRight = false;
}

From source file:com.imag.nespros.gui.plugin.GraphEditor.java

/**
 * create an instance of a simple graph with popup controls to create a
 * graph.//w  w w.  j a v a  2  s . co  m
 *
 */
private GraphEditor(Simulation s) {
    simu = s;
    try {
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception ex) {
        Logger.getLogger(GraphEditor.class.getName()).log(Level.SEVERE, null, ex);
    }
    // create a simple graph for the demo
    graph = Topology.getInstance().getGraph();
    this.layout = new StaticLayout<Device, ComLink>(graph, new Transformer<Device, Point2D>() {
        @Override
        public Point2D transform(Device v) {
            Point2D p = new Point2D.Double(v.getX(), v.getY());
            return p;
        }
    }, new Dimension(600, 600));

    vv = new VisualizationViewer<Device, ComLink>(layout);
    vv.setBackground(Color.white);

    final Transformer<Device, String> vertexLabelTransformer = new Transformer<Device, String>() {
        @Override
        public String transform(Device d) {
            return d.getDeviceName();
        }
    };

    //vv.getRenderContext().setVertexLabelTransformer(MapTransformer.<Device, String>getInstance(
    //      LazyMap.<Device, String>decorate(new HashMap<Device, String>(), new ToStringLabeller<Device>())));
    vv.getRenderContext().setVertexLabelTransformer(vertexLabelTransformer);
    vv.getRenderContext().setEdgeLabelTransformer(new Transformer<ComLink, String>() {
        @Override
        public String transform(ComLink link) {
            return (link.getID() + ", " + link.getLatency());
        }
    });
    //float dash[] = {0.1f};
    //final Stroke edgeStroke = new BasicStroke(3.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10.0f, dash, 1.0f);
    final Stroke edgeStroke = new BasicStroke(3.0f);
    final Transformer<ComLink, Stroke> edgeStrokeTransformer = new Transformer<ComLink, Stroke>() {
        @Override
        public Stroke transform(ComLink l) {
            return edgeStroke;
        }
    };
    Transformer<ComLink, Paint> edgePaint = new Transformer<ComLink, Paint>() {
        public Paint transform(ComLink l) {
            if (l.isDown()) {
                return Color.RED;
            } else {
                return Color.BLACK;
            }
        }
    };
    vv.getRenderContext().setEdgeDrawPaintTransformer(edgePaint);
    vv.getRenderContext().setEdgeStrokeTransformer(edgeStrokeTransformer);
    vv.setVertexToolTipTransformer(vv.getRenderContext().getVertexLabelTransformer());
    vv.getRenderContext().setVertexIconTransformer(new CustomVertexIconTransformer());
    vv.getRenderContext().setVertexShapeTransformer(new CustomVertexShapeTransformer());

    vv.addPreRenderPaintable(new VisualizationViewer.Paintable() {

        @Override
        public void paint(Graphics grphcs) {

            for (Device d : Topology.getInstance().getGraph().getVertices()) {
                int size = d.getOperators().size();
                MyLayeredIcon icon = d.getIcon();
                //if(icon == null) continue;
                icon.removeAll();
                if (size > 0) {
                    // the vertex icon                        
                    // Let's create the annotation image to be added to icon..
                    BufferedImage image = new BufferedImage(20, 20, BufferedImage.TYPE_INT_ARGB);
                    Graphics2D g = image.createGraphics();
                    g.setColor(Color.ORANGE);
                    g.fillOval(0, 0, 20, 20);
                    g.setColor(Color.BLACK);
                    g.drawString(size + "", 5, 13);
                    g.dispose();
                    ImageIcon img = new ImageIcon(image);
                    //Dimension id = new Dimension(icon.getIconWidth(), icon.getIconHeight());
                    //double x = vv.getModel().getGraphLayout().transform(d).getX();
                    //x -= (icon.getIconWidth() / 2);
                    //double y = vv.getModel().getGraphLayout().transform(d).getY();
                    //y -= (icon.getIconHeight() / 2);
                    //grphcs.drawImage(image, (int) Math.round(x), (int) Math.round(y), null);
                    icon.add(img);
                }
            }
        }

        @Override
        public boolean useTransform() {
            return false;
        }
    });

    Container content = getContentPane();
    final GraphZoomScrollPane panel = new GraphZoomScrollPane(vv);
    content.add(panel);
    Factory<Device> vertexFactory = DeviceFactory.getInstance();
    Factory<ComLink> edgeFactory = ComLinkFactory.getInstance();

    final EditingModalGraphMouse<Device, ComLink> graphMouse = new EditingModalGraphMouse<>(
            vv.getRenderContext(), vertexFactory, edgeFactory);

    // Trying out our new popup menu mouse plugin...
    PopupVertexEdgeMenuMousePlugin myPlugin = new PopupVertexEdgeMenuMousePlugin();
    // Add some popup menus for the edges and vertices to our mouse plugin.
    JPopupMenu edgeMenu = new MyMouseMenus.EdgeMenu(frame);
    JPopupMenu vertexMenu = new MyMouseMenus.VertexMenu(frame);
    myPlugin.setEdgePopup(edgeMenu);
    myPlugin.setVertexPopup(vertexMenu);
    graphMouse.remove(graphMouse.getPopupEditingPlugin()); // Removes the existing popup editing plugin

    graphMouse.add(myPlugin); // Add our new plugin to the mouse  
    // AnnotatingGraphMousePlugin<Device,ComLink> annotatingPlugin =
    //   new AnnotatingGraphMousePlugin<>(vv.getRenderContext());
    //graphMouse.add(annotatingPlugin);
    // the EditingGraphMouse will pass mouse event coordinates to the
    // vertexLocations function to set the locations of the vertices as
    // they are created
    //        graphMouse.setVertexLocations(vertexLocations);
    vv.setGraphMouse(graphMouse);
    vv.addKeyListener(graphMouse.getModeKeyListener());

    graphMouse.setMode(ModalGraphMouse.Mode.PICKING);

    //final ImageAtEdgePainter<String, String> imageAtEdgePainter = 
    //  new ImageAtEdgePainter<String, String>(vv, edge, image);
    final ScalingControl scaler = new CrossoverScalingControl();
    JButton plus = new JButton("+");
    plus.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            scaler.scale(vv, 1.1f, vv.getCenter());
        }
    });
    JButton minus = new JButton("-");
    minus.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            scaler.scale(vv, 1 / 1.1f, vv.getCenter());
        }
    });

    JButton help = new JButton("Help");
    help.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(vv, instructions);
        }
    });
    JButton deploy = new JButton("Deploy");
    deploy.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            // OPMapping algo here
            if (simu == null) {
                return;
            }
            GraphUtil<Device, ComLink> util = new GraphUtil<>();
            for (EventProducer p : simu.getProducers()) {
                if (!p.isMapped()) {
                    JOptionPane.showMessageDialog(frame,
                            "Cannot map operators. Please deploy the producer: " + p.getName());
                    return;
                }
            }
            for (EventConsumer c : simu.getConsumers()) {
                if (!c.isMapped()) {
                    JOptionPane.showMessageDialog(frame,
                            "Cannot map operators. Please deploy the consumer: " + c.getName());
                    return;
                }
                System.out.println("-- Operator placement algorithm Greedy: " + c.getName() + " --");
                Solution init = util.initialMapping(c.getGraph());
                System.out.println(c.getGraph() + "\nInitial Mapping: " + init);
                OperatorMapping mapper = new OperatorMapping();
                long T1, T2;
                System.out.println("--- OpMapping Algo Greedy --- ");
                T1 = System.currentTimeMillis();
                Solution solution = mapper.opMapping(c.getGraph(), Topology.getInstance().getGraph(), init);
                T2 = System.currentTimeMillis();
                System.out.println(solution);
                System.out.println("Solution founded in: " + (T2 - T1) + " ms");
            }
            //                Solution init = util.initialMapping(EPGraph.getInstance().getGraph());
            //                System.out.println("Initial Mapping: " + init);
            //                OperatorMapping mapper = new OperatorMapping();
            //                long T1, T2;
            //                System.out.println("--- OpMapping Algo Greedy --- ");
            //                T1 = System.currentTimeMillis();
            //                Solution solution = mapper.opMapping(EPGraph.getInstance().getGraph(),
            //                        Topology.getInstance().getGraph(), init);
            //                T2 = System.currentTimeMillis();
            //                System.out.println(solution);
            //                System.out.println("Solution founded in: " + (T2 - T1) + " ms");
            vv.repaint();
        }
    });
    JButton run = new JButton("Run");
    run.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            // run the simulation here
            System.out.println("Setting the simulation...");
            for (EventConsumer c : simu.getConsumers()) {

                for (EPUnit op : c.getGraph().getVertices()) {
                    if (op.isMapped()) {
                        op.openIOchannels();
                    } else {
                        JOptionPane.showMessageDialog(frame, "Cannot run, undeployed operators founded.");
                        return;
                    }
                }
            }
            //ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
            System.out.println("Running the simulation...");
            //scheduledExecutorService.execute(runner);
            for (Device device : Topology.getInstance().getGraph().getVertices()) {
                if (!device.isAlive()) {
                    device.start();
                }
            }
            for (ComLink link : Topology.getInstance().getGraph().getEdges()) {
                if (!link.isAlive()) {
                    link.start();
                }
            }
            for (EventConsumer c : simu.getConsumers()) {
                for (EPUnit op : c.getGraph().getVertices()) {
                    if (op.isMapped() && op.getDevice() != null && !op.isAlive()) {
                        op.start();
                    }
                }
            }

        }
    });
    AnnotationControls<Device, ComLink> annotationControls = new AnnotationControls<Device, ComLink>(
            graphMouse.getAnnotatingPlugin());
    JSlider slider = new JSlider(JSlider.HORIZONTAL, 0, 30, 0);
    slider.setMinorTickSpacing(5);
    slider.setMajorTickSpacing(30);
    slider.setPaintTicks(true);
    slider.setPaintLabels(true);
    slider.setLabelTable(slider.createStandardLabels(15));
    slider.addChangeListener(new ChangeListener() {
        @Override
        public void stateChanged(ChangeEvent e) {
            JSlider slider = (JSlider) e.getSource();
            if (!slider.getValueIsAdjusting()) {
                speedSimulation(slider.getValue());
            }
        }
    });
    JPanel controls = new JPanel();
    controls.add(plus);
    controls.add(minus);
    JComboBox modeBox = graphMouse.getModeComboBox();
    controls.add(modeBox);
    controls.add(annotationControls.getAnnotationsToolBar());
    controls.add(slider);
    controls.add(deploy);
    controls.add(run);
    controls.add(help);
    content.add(controls, BorderLayout.SOUTH);
    /* Custom JPanels can be added here  */
    //
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    //final GraphEditor demo = new GraphEditor();

}

From source file:com.openbravo.pos.util.ThumbNailBuilder.java

private Image createThumbNail(Image img) {
    //            MaskFilter filter = new MaskFilter(Color.WHITE);
    //            ImageProducer prod = new FilteredImageSource(img.getSource(), filter);
    //            img = Toolkit.getDefaultToolkit().createImage(prod);

    int targetw;//from  www  .  j  ava2s  .  co  m
    int targeth;

    double scalex = (double) m_width / (double) img.getWidth(null);
    double scaley = (double) m_height / (double) img.getHeight(null);
    if (scalex < scaley) {
        targetw = m_width;
        targeth = (int) (img.getHeight(null) * scalex);
    } else {
        targetw = (int) (img.getWidth(null) * scaley);
        targeth = (int) m_height;
    }

    int midw = img.getWidth(null);
    int midh = img.getHeight(null);
    BufferedImage midimg = null;
    Graphics2D g2d = null;

    Image previmg = img;
    int prevw = img.getWidth(null);
    int prevh = img.getHeight(null);

    do {
        if (midw > targetw) {
            midw /= 2;
            if (midw < targetw) {
                midw = targetw;
            }
        } else {
            midw = targetw;
        }
        if (midh > targeth) {
            midh /= 2;
            if (midh < targeth) {
                midh = targeth;
            }
        } else {
            midh = targeth;
        }
        if (midimg == null) {
            midimg = new BufferedImage(midw, midh, BufferedImage.TYPE_INT_ARGB);
            g2d = midimg.createGraphics();
            g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        }
        g2d.drawImage(previmg, 0, 0, midw, midh, 0, 0, prevw, prevh, null);
        prevw = midw;
        prevh = midh;
        previmg = midimg;
    } while (midw != targetw || midh != targeth);

    g2d.dispose();

    if (m_width != midimg.getWidth() || m_height != midimg.getHeight()) {
        midimg = new BufferedImage(m_width, m_height, BufferedImage.TYPE_INT_ARGB);
        int x = (m_width > targetw) ? (m_width - targetw) / 2 : 0;
        int y = (m_height > targeth) ? (m_height - targeth) / 2 : 0;
        g2d = midimg.createGraphics();
        g2d.drawImage(previmg, x, y, x + targetw, y + targeth, 0, 0, targetw, targeth, null);
        g2d.dispose();
        previmg = midimg;
    }
    return previmg;
}