Example usage for java.awt Graphics2D clearRect

List of usage examples for java.awt Graphics2D clearRect

Introduction

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

Prototype

public abstract void clearRect(int x, int y, int width, int height);

Source Link

Document

Clears the specified rectangle by filling it with the background color of the current drawing surface.

Usage

From source file:net.semanticmetadata.lire.utils.FileUtils.java

public static void saveImageResultsToPng(String prefix, ImageSearchHits hits, String queryImage,
        IndexReader reader) throws IOException {
    LinkedList<BufferedImage> results = new LinkedList<BufferedImage>();
    int width = 0;
    for (int i = 0; i < hits.length(); i++) {
        // hits.score(i)
        // hits.doc(i).get("descriptorImageIdentifier")
        BufferedImage tmp = ImageIO.read(new FileInputStream(
                reader.document(hits.documentID(i)).getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0]));
        //            if (tmp.getHeight() > 200) {
        double factor = 200d / ((double) tmp.getHeight());
        tmp = ImageUtils.scaleImage(tmp, (int) (tmp.getWidth() * factor), 200);
        //            }
        width += tmp.getWidth() + 5;/*  www .  ja va2s.  com*/
        results.add(tmp);
    }
    BufferedImage result = new BufferedImage(width, 220, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = (Graphics2D) result.getGraphics();
    g2.setColor(Color.white);
    g2.setBackground(Color.white);
    g2.clearRect(0, 0, result.getWidth(), result.getHeight());
    g2.setColor(Color.black);
    g2.setFont(Font.decode("\"Arial\", Font.BOLD, 12"));
    int offset = 0;
    int count = 0;
    for (Iterator<BufferedImage> iterator = results.iterator(); iterator.hasNext();) {
        BufferedImage next = iterator.next();
        g2.drawImage(next, offset, 20, null);
        g2.drawString(hits.score(count) + "", offset + 5, 12);
        offset += next.getWidth() + 5;
        count++;
    }
    ImageIO.write(result, "PNG", new File(prefix + "_" + (System.currentTimeMillis() / 1000) + ".png"));
}

From source file:com.ricemap.spateDB.operations.Plot.java

public static <S extends Shape> void plotLocal(Path inFile, Path outFile, S shape, int width, int height,
        Color color, boolean showBorders, boolean showBlockCount, boolean showRecordCount) throws IOException {
    FileSystem inFs = inFile.getFileSystem(new Configuration());
    Prism fileMbr = FileMBR.fileMBRLocal(inFs, inFile, shape);
    LOG.info("FileMBR: " + fileMbr);

    // Adjust width and height to maintain aspect ratio
    if ((fileMbr.x2 - fileMbr.x1) / (fileMbr.y2 - fileMbr.y1) > (double) width / height) {
        // Fix width and change height
        height = (int) ((fileMbr.y2 - fileMbr.y1) * width / (fileMbr.x2 - fileMbr.x1));
    } else {/*from  w w  w  .  j  ava  2s  . c  om*/
        width = (int) ((fileMbr.x2 - fileMbr.x1) * height / (fileMbr.y2 - fileMbr.y1));
    }

    double scale2 = (double) width * height / ((double) (fileMbr.x2 - fileMbr.x1) * (fileMbr.y2 - fileMbr.y1));

    // Create an image
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics = image.createGraphics();
    Color bg_color = new Color(0, 0, 0, 0);
    graphics.setBackground(bg_color);
    graphics.clearRect(0, 0, width, height);
    graphics.setColor(color);

    long fileLength = inFs.getFileStatus(inFile).getLen();
    ShapeRecordReader<S> reader = new ShapeRecordReader<S>(inFs.open(inFile), 0, fileLength);

    Prism cell = reader.createKey();
    while (reader.next(cell, shape)) {
        drawShape(graphics, shape, fileMbr, width, height, scale2);
    }

    reader.close();
    graphics.dispose();
    FileSystem outFs = outFile.getFileSystem(new Configuration());
    OutputStream out = outFs.create(outFile, true);
    ImageIO.write(image, "png", out);
    out.close();
}

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

public static <S extends Shape> void plotLocal(Path inFile, Path outFile, S shape, int width, int height,
        Color color, boolean showBorders, boolean showBlockCount, boolean showRecordCount) throws IOException {
    FileSystem inFs = inFile.getFileSystem(new Configuration());
    Rectangle fileMbr = FileMBR.fileMBRLocal(inFs, inFile, shape);
    LOG.info("FileMBR: " + fileMbr);

    // Adjust width and height to maintain aspect ratio
    if ((fileMbr.x2 - fileMbr.x1) / (fileMbr.y2 - fileMbr.y1) > (double) width / height) {
        // Fix width and change height
        height = (int) ((fileMbr.y2 - fileMbr.y1) * width / (fileMbr.x2 - fileMbr.x1));
    } else {/*w  ww  .  j  a  va2s  .c o m*/
        width = (int) ((fileMbr.x2 - fileMbr.x1) * height / (fileMbr.y2 - fileMbr.y1));
    }

    double scale2 = (double) width * height / ((double) (fileMbr.x2 - fileMbr.x1) * (fileMbr.y2 - fileMbr.y1));

    // Create an image
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics = image.createGraphics();
    Color bg_color = new Color(0, 0, 0, 0);
    graphics.setBackground(bg_color);
    graphics.clearRect(0, 0, width, height);
    graphics.setColor(color);

    long fileLength = inFs.getFileStatus(inFile).getLen();
    ShapeRecordReader<S> reader = new ShapeRecordReader<S>(inFs.open(inFile), 0, fileLength);

    Rectangle cell = reader.createKey();
    while (reader.next(cell, shape)) {
        drawShape(graphics, shape, fileMbr, width, height, scale2);
    }

    reader.close();
    graphics.dispose();
    FileSystem outFs = outFile.getFileSystem(new Configuration());
    OutputStream out = outFs.create(outFile, true);
    ImageIO.write(image, "png", out);
    out.close();
}

From source file:com.flexive.shared.media.impl.FxMediaNativeEngine.java

/**
 * Rotate an image using the requested angle
 *
 * @param bufferedImage imeg to rotate//from w ww. ja va  2 s  .co m
 * @param angle         angle to rotate
 * @return BufferedImage containing the rotation
 */
@SuppressWarnings({ "UnusedAssignment" })
private static BufferedImage rotate(BufferedImage bufferedImage, int angle) {
    angle = angle % 360;
    if (angle == 0)
        return bufferedImage;
    if (angle < 0)
        angle += 360;
    switch (angle) {
    case 90:
        BufferedImageOp rot90 = new AffineTransformOp(AffineTransform.getRotateInstance(Math.PI / 2.0,
                bufferedImage.getHeight() / 2.0, bufferedImage.getHeight() / 2.0),
                AffineTransformOp.TYPE_BILINEAR);
        BufferedImage img90 = new BufferedImage(bufferedImage.getHeight(), bufferedImage.getWidth(),
                bufferedImage.getType());
        return rot90.filter(bufferedImage, img90);
    case 180:
        BufferedImageOp rot180 = new AffineTransformOp(AffineTransform.getRotateInstance(Math.PI,
                bufferedImage.getWidth() / 2.0, bufferedImage.getHeight() / 2.0),
                AffineTransformOp.TYPE_BILINEAR);
        BufferedImage img180 = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(),
                bufferedImage.getType());
        return rot180.filter(bufferedImage, img180);
    case 270:
        BufferedImageOp rot270 = new AffineTransformOp(AffineTransform.getRotateInstance(-Math.PI / 2.0,
                bufferedImage.getWidth() / 2.0, bufferedImage.getWidth() / 2.0),
                AffineTransformOp.TYPE_BILINEAR);
        BufferedImage img270 = new BufferedImage(bufferedImage.getHeight(), bufferedImage.getWidth(),
                bufferedImage.getType());
        return rot270.filter(bufferedImage, img270);
    default:
        //rotate using a non-standard angle (have to draw a box around the image that can fit it)
        int box = (int) Math.sqrt(bufferedImage.getHeight() * bufferedImage.getHeight()
                + bufferedImage.getWidth() * bufferedImage.getWidth());
        BufferedImage imgFree = new BufferedImage(box, box, bufferedImage.getType());
        BufferedImage imgRet = new BufferedImage(box, box, bufferedImage.getType());
        Graphics2D g = imgFree.createGraphics();
        if (bufferedImage.getTransparency() == Transparency.OPAQUE) {
            //draw a white background on opaque images since they dont support transparency
            g.setBackground(Color.WHITE);
            g.clearRect(0, 0, box, box);
            Graphics2D gr = imgRet.createGraphics();
            gr.setBackground(Color.WHITE);
            gr.clearRect(0, 0, box, box);
            gr = null;
        }
        g.drawImage(bufferedImage, box / 2 - bufferedImage.getWidth() / 2,
                box / 2 - bufferedImage.getHeight() / 2, bufferedImage.getWidth(), bufferedImage.getHeight(),
                null);
        g = null;
        AffineTransform at = new AffineTransform();
        at.rotate(angle * Math.PI / 180.0, box / 2.0, box / 2.0);
        BufferedImageOp bio;
        bio = new AffineTransformOp(at, AffineTransformOp.TYPE_BILINEAR);
        return bio.filter(imgFree, imgRet);
    }
}

From source file:com.lingxiang2014.util.ImageUtils.java

public static void addWatermark(File srcFile, File destFile, File watermarkFile, int alpha) {
    Assert.notNull(srcFile);//from   ww w  .  ja v  a  2 s  . co  m
    Assert.notNull(destFile);
    Assert.state(alpha >= 0);
    Assert.state(alpha <= 100);
    if (watermarkFile == null || !watermarkFile.exists()) {
        try {
            FileUtils.copyFile(srcFile, destFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return;
    }
    if (type == Type.jdk) {
        Graphics2D graphics2D = null;
        ImageOutputStream imageOutputStream = null;
        ImageWriter imageWriter = null;
        try {
            BufferedImage srcBufferedImage = ImageIO.read(srcFile);
            int srcWidth = srcBufferedImage.getWidth();
            int srcHeight = srcBufferedImage.getHeight();
            BufferedImage destBufferedImage = new BufferedImage(srcWidth, srcHeight,
                    BufferedImage.TYPE_INT_RGB);
            graphics2D = destBufferedImage.createGraphics();
            graphics2D.setBackground(BACKGROUND_COLOR);
            graphics2D.clearRect(0, 0, srcWidth, srcHeight);
            graphics2D.drawImage(srcBufferedImage, 0, 0, null);
            graphics2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha / 100F));

            BufferedImage watermarkBufferedImage = ImageIO.read(watermarkFile);
            int watermarkImageWidth = watermarkBufferedImage.getWidth();
            int watermarkImageHeight = watermarkBufferedImage.getHeight();
            int x = srcWidth - watermarkImageWidth;
            int y = srcHeight - watermarkImageHeight;

            graphics2D.drawImage(watermarkBufferedImage, x, y, watermarkImageWidth, watermarkImageHeight, null);

            imageOutputStream = ImageIO.createImageOutputStream(destFile);
            imageWriter = ImageIO.getImageWritersByFormatName(FilenameUtils.getExtension(destFile.getName()))
                    .next();
            imageWriter.setOutput(imageOutputStream);
            ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam();
            imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            imageWriteParam.setCompressionQuality(DEST_QUALITY / 100F);
            imageWriter.write(null, new IIOImage(destBufferedImage, null, null), imageWriteParam);
            imageOutputStream.flush();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (graphics2D != null) {
                graphics2D.dispose();
            }
            if (imageWriter != null) {
                imageWriter.dispose();
            }
            if (imageOutputStream != null) {
                try {
                    imageOutputStream.close();
                } catch (IOException e) {
                }
            }
        }
    } else {
        IMOperation operation = new IMOperation();
        operation.dissolve(alpha);
        operation.quality((double) DEST_QUALITY);
        operation.addImage(watermarkFile.getPath());
        operation.addImage(srcFile.getPath());
        operation.addImage(destFile.getPath());
        if (type == Type.graphicsMagick) {
            CompositeCmd compositeCmd = new CompositeCmd(true);
            if (graphicsMagickPath != null) {
                compositeCmd.setSearchPath(graphicsMagickPath);
            }
            try {
                compositeCmd.run(operation);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (IM4JavaException e) {
                e.printStackTrace();
            }
        } else {
            CompositeCmd compositeCmd = new CompositeCmd(false);
            if (imageMagickPath != null) {
                compositeCmd.setSearchPath(imageMagickPath);
            }
            try {
                compositeCmd.run(operation);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (IM4JavaException e) {
                e.printStackTrace();
            }
        }
    }
}

From source file:Main.java

private Image createImage(Color color) {
    BufferedImage bImg = new BufferedImage(Width, Height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bImg.createGraphics();
    g2.setBackground(color);//w  ww .j av  a2  s  .  c om
    g2.clearRect(0, 0, Width, Height);
    g2.dispose();
    return bImg;
}

From source file:SimpleAttributes.java

public void paintComponent(Graphics g) {
    Graphics2D g2d = (Graphics2D) g.create();
    g2d.setBackground(Color.GRAY);
    g2d.clearRect(0, 0, getWidth(), getHeight());

    // String and line with default attributes
    g2d.drawString("Default Font", 10, 20);
    g2d.drawLine(10, 22, 80, 22);//from   w  w w  .j  a  v a2  s. com

    // Change the font, foreground color, and Stroke
    g2d.setFont(g.getFont().deriveFont(Font.BOLD | Font.ITALIC, 24f));
    g2d.setColor(Color.WHITE);
    g2d.setStroke(new BasicStroke(10f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER));

    // String and line with new attributes
    g2d.drawString("New Font", 10, 50);
    g2d.drawLine(10, 57, 120, 57);
    g2d.dispose();
}

From source file:edu.umn.cs.spatialHadoop.visualization.MultilevelPlot.java

private static void plotLocal(Path[] inFiles, final Path outPath, final Class<? extends Plotter> plotterClass,
        final OperationsParams params) throws IOException, InterruptedException, ClassNotFoundException {
    final boolean vflip = params.getBoolean("vflip", true);

    OperationsParams mbrParams = new OperationsParams(params);
    mbrParams.setBoolean("background", false);
    final Rectangle inputMBR = params.get("mbr") != null ? params.getShape("mbr").getMBR()
            : FileMBR.fileMBR(inFiles, mbrParams);
    OperationsParams.setShape(params, InputMBR, inputMBR);

    // Retrieve desired output image size and keep aspect ratio if needed
    int tileWidth = params.getInt("tilewidth", 256);
    int tileHeight = params.getInt("tileheight", 256);
    // Adjust width and height if aspect ratio is to be kept
    if (params.getBoolean("keepratio", true)) {
        // Expand input file to a rectangle for compatibility with the pyramid
        // structure
        if (inputMBR.getWidth() > inputMBR.getHeight()) {
            inputMBR.y1 -= (inputMBR.getWidth() - inputMBR.getHeight()) / 2;
            inputMBR.y2 = inputMBR.y1 + inputMBR.getWidth();
        } else {//from   w w w .  j  a v a  2s. c  om
            inputMBR.x1 -= (inputMBR.getHeight() - inputMBR.getWidth()) / 2;
            inputMBR.x2 = inputMBR.x1 + inputMBR.getHeight();
        }
    }

    String outFName = outPath.getName();
    int extensionStart = outFName.lastIndexOf('.');
    final String extension = extensionStart == -1 ? ".png" : outFName.substring(extensionStart);

    // Start reading input file
    Vector<InputSplit> splits = new Vector<InputSplit>();
    final SpatialInputFormat3<Rectangle, Shape> inputFormat = new SpatialInputFormat3<Rectangle, Shape>();
    for (Path inFile : inFiles) {
        FileSystem inFs = inFile.getFileSystem(params);
        if (!OperationsParams.isWildcard(inFile) && inFs.exists(inFile) && !inFs.isDirectory(inFile)) {
            if (SpatialSite.NonHiddenFileFilter.accept(inFile)) {
                // Use the normal input format splitter to add this non-hidden file
                Job job = Job.getInstance(params);
                SpatialInputFormat3.addInputPath(job, inFile);
                splits.addAll(inputFormat.getSplits(job));
            } else {
                // A hidden file, add it immediately as one split
                // This is useful if the input is a hidden file which is automatically
                // skipped by FileInputFormat. We need to plot a hidden file for the case
                // of plotting partition boundaries of a spatial index
                splits.add(new FileSplit(inFile, 0, inFs.getFileStatus(inFile).getLen(), new String[0]));
            }
        } else {
            Job job = Job.getInstance(params);
            SpatialInputFormat3.addInputPath(job, inFile);
            splits.addAll(inputFormat.getSplits(job));
        }
    }

    try {
        Plotter plotter = plotterClass.newInstance();
        plotter.configure(params);

        String[] strLevels = params.get("levels", "7").split("\\.\\.");
        int minLevel, maxLevel;
        if (strLevels.length == 1) {
            minLevel = 0;
            maxLevel = Integer.parseInt(strLevels[0]);
        } else {
            minLevel = Integer.parseInt(strLevels[0]);
            maxLevel = Integer.parseInt(strLevels[1]);
        }

        GridInfo bottomGrid = new GridInfo(inputMBR.x1, inputMBR.y1, inputMBR.x2, inputMBR.y2);
        bottomGrid.rows = bottomGrid.columns = 1 << maxLevel;

        TileIndex key = new TileIndex();

        // All canvases in the pyramid, one per tile
        Map<TileIndex, Canvas> canvases = new HashMap<TileIndex, Canvas>();
        for (InputSplit split : splits) {
            FileSplit fsplit = (FileSplit) split;
            RecordReader<Rectangle, Iterable<Shape>> reader = inputFormat.createRecordReader(fsplit, null);
            if (reader instanceof SpatialRecordReader3) {
                ((SpatialRecordReader3) reader).initialize(fsplit, params);
            } else if (reader instanceof RTreeRecordReader3) {
                ((RTreeRecordReader3) reader).initialize(fsplit, params);
            } else if (reader instanceof HDFRecordReader) {
                ((HDFRecordReader) reader).initialize(fsplit, params);
            } else {
                throw new RuntimeException("Unknown record reader");
            }

            while (reader.nextKeyValue()) {
                Rectangle partition = reader.getCurrentKey();
                if (!partition.isValid())
                    partition.set(inputMBR);

                Iterable<Shape> shapes = reader.getCurrentValue();

                for (Shape shape : shapes) {
                    Rectangle shapeMBR = shape.getMBR();
                    if (shapeMBR == null)
                        continue;
                    java.awt.Rectangle overlappingCells = bottomGrid.getOverlappingCells(shapeMBR);
                    // Iterate over levels from bottom up
                    for (key.level = maxLevel; key.level >= minLevel; key.level--) {
                        for (key.x = overlappingCells.x; key.x < overlappingCells.x
                                + overlappingCells.width; key.x++) {
                            for (key.y = overlappingCells.y; key.y < overlappingCells.y
                                    + overlappingCells.height; key.y++) {
                                Canvas canvas = canvases.get(key);
                                if (canvas == null) {
                                    Rectangle tileMBR = new Rectangle();
                                    int gridSize = 1 << key.level;
                                    tileMBR.x1 = (inputMBR.x1 * (gridSize - key.x) + inputMBR.x2 * key.x)
                                            / gridSize;
                                    tileMBR.x2 = (inputMBR.x1 * (gridSize - (key.x + 1))
                                            + inputMBR.x2 * (key.x + 1)) / gridSize;
                                    tileMBR.y1 = (inputMBR.y1 * (gridSize - key.y) + inputMBR.y2 * key.y)
                                            / gridSize;
                                    tileMBR.y2 = (inputMBR.y1 * (gridSize - (key.y + 1))
                                            + inputMBR.y2 * (key.y + 1)) / gridSize;
                                    canvas = plotter.createCanvas(tileWidth, tileHeight, tileMBR);
                                    canvases.put(key.clone(), canvas);
                                }
                                plotter.plot(canvas, shape);
                            }
                        }
                        // Update overlappingCells for the higher level
                        int updatedX1 = overlappingCells.x / 2;
                        int updatedY1 = overlappingCells.y / 2;
                        int updatedX2 = (overlappingCells.x + overlappingCells.width - 1) / 2;
                        int updatedY2 = (overlappingCells.y + overlappingCells.height - 1) / 2;
                        overlappingCells.x = updatedX1;
                        overlappingCells.y = updatedY1;
                        overlappingCells.width = updatedX2 - updatedX1 + 1;
                        overlappingCells.height = updatedY2 - updatedY1 + 1;
                    }
                }
            }
            reader.close();
        }

        // Done with all splits. Write output to disk
        LOG.info("Done with plotting. Now writing the output");
        final FileSystem outFS = outPath.getFileSystem(params);

        LOG.info("Writing default empty image");
        // Write a default empty image to be displayed for non-generated tiles
        BufferedImage emptyImg = new BufferedImage(tileWidth, tileHeight, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g = new SimpleGraphics(emptyImg);
        g.setBackground(new Color(0, 0, 0, 0));
        g.clearRect(0, 0, tileWidth, tileHeight);
        g.dispose();

        // Write HTML file to browse the mutlielvel image
        OutputStream out = outFS.create(new Path(outPath, "default.png"));
        ImageIO.write(emptyImg, "png", out);
        out.close();

        // Add an HTML file that visualizes the result using Google Maps
        LOG.info("Writing the HTML viewer file");
        LineReader templateFileReader = new LineReader(
                MultilevelPlot.class.getResourceAsStream("/zoom_view.html"));
        PrintStream htmlOut = new PrintStream(outFS.create(new Path(outPath, "index.html")));
        Text line = new Text();
        while (templateFileReader.readLine(line) > 0) {
            String lineStr = line.toString();
            lineStr = lineStr.replace("#{TILE_WIDTH}", Integer.toString(tileWidth));
            lineStr = lineStr.replace("#{TILE_HEIGHT}", Integer.toString(tileHeight));
            lineStr = lineStr.replace("#{MAX_ZOOM}", Integer.toString(maxLevel));
            lineStr = lineStr.replace("#{MIN_ZOOM}", Integer.toString(minLevel));
            lineStr = lineStr.replace("#{TILE_URL}",
                    "'tile-' + zoom + '-' + coord.x + '-' + coord.y + '" + extension + "'");

            htmlOut.println(lineStr);
        }
        templateFileReader.close();
        htmlOut.close();

        // Write the tiles
        final Entry<TileIndex, Canvas>[] entries = canvases.entrySet().toArray(new Map.Entry[canvases.size()]);
        // Clear the hash map to save memory as it is no longer needed
        canvases.clear();
        int parallelism = params.getInt("parallel", Runtime.getRuntime().availableProcessors());
        Parallel.forEach(entries.length, new RunnableRange<Object>() {
            @Override
            public Object run(int i1, int i2) {
                boolean output = params.getBoolean("output", true);
                try {
                    Plotter plotter = plotterClass.newInstance();
                    plotter.configure(params);
                    for (int i = i1; i < i2; i++) {
                        Map.Entry<TileIndex, Canvas> entry = entries[i];
                        TileIndex key = entry.getKey();
                        if (vflip)
                            key.y = ((1 << key.level) - 1) - key.y;

                        Path imagePath = new Path(outPath, key.getImageFileName() + extension);
                        // Write this tile to an image
                        DataOutputStream outFile = output ? outFS.create(imagePath)
                                : new DataOutputStream(new NullOutputStream());
                        plotter.writeImage(entry.getValue(), outFile, vflip);
                        outFile.close();

                        // Remove entry to allows GC to collect it
                        entries[i] = null;
                    }
                    return null;
                } catch (InstantiationException e) {
                    e.printStackTrace();
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return null;
            }
        }, parallelism);
    } catch (InstantiationException e) {
        throw new RuntimeException("Error creating rastierizer", e);
    } catch (IllegalAccessException e) {
        throw new RuntimeException("Error creating rastierizer", e);
    }
}

From source file:image.writer.ImageWriterExample2.java

private BufferedImage createAnImage(String compression, int pageNum) {
    boolean monochrome = compression.startsWith("CCITT"); //CCITT is for 1bit b/w only

    BufferedImage bimg;// ww w . j  ava2 s  .c  o m
    if (monochrome) {
        bimg = new BufferedImage(400, 200, BufferedImage.TYPE_BYTE_BINARY);
    } else {
        bimg = new BufferedImage(400, 200, BufferedImage.TYPE_INT_RGB);
    }

    Graphics2D g2d = bimg.createGraphics();
    g2d.setBackground(Color.white);
    g2d.clearRect(0, 0, 400, 200);
    g2d.setColor(Color.black);

    //Paint something
    paintSome(g2d, pageNum);

    return bimg;
}

From source file:net.groupbuy.util.ImageUtils.java

/**
 * ?//from   w  w w. j ava 2s.c  om
 * 
 * @param srcFile
 *            ?
 * @param destFile
 *            
 * @param watermarkFile
 *            ?
 * @param watermarkPosition
 *            ??
 * @param alpha
 *            ??
 */
public static void addWatermark(File srcFile, File destFile, File watermarkFile,
        WatermarkPosition watermarkPosition, int alpha) {
    Assert.notNull(srcFile);
    Assert.notNull(destFile);
    Assert.state(alpha >= 0);
    Assert.state(alpha <= 100);
    if (watermarkFile == null || !watermarkFile.exists() || watermarkPosition == null
            || watermarkPosition == WatermarkPosition.no) {
        try {
            FileUtils.copyFile(srcFile, destFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return;
    }
    if (type == Type.jdk) {
        Graphics2D graphics2D = null;
        ImageOutputStream imageOutputStream = null;
        ImageWriter imageWriter = null;
        try {
            BufferedImage srcBufferedImage = ImageIO.read(srcFile);
            int srcWidth = srcBufferedImage.getWidth();
            int srcHeight = srcBufferedImage.getHeight();
            BufferedImage destBufferedImage = new BufferedImage(srcWidth, srcHeight,
                    BufferedImage.TYPE_INT_RGB);
            graphics2D = destBufferedImage.createGraphics();
            graphics2D.setBackground(BACKGROUND_COLOR);
            graphics2D.clearRect(0, 0, srcWidth, srcHeight);
            graphics2D.drawImage(srcBufferedImage, 0, 0, null);
            graphics2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha / 100F));

            BufferedImage watermarkBufferedImage = ImageIO.read(watermarkFile);
            int watermarkImageWidth = watermarkBufferedImage.getWidth();
            int watermarkImageHeight = watermarkBufferedImage.getHeight();
            int x = srcWidth - watermarkImageWidth;
            int y = srcHeight - watermarkImageHeight;
            if (watermarkPosition == WatermarkPosition.topLeft) {
                x = 0;
                y = 0;
            } else if (watermarkPosition == WatermarkPosition.topRight) {
                x = srcWidth - watermarkImageWidth;
                y = 0;
            } else if (watermarkPosition == WatermarkPosition.center) {
                x = (srcWidth - watermarkImageWidth) / 2;
                y = (srcHeight - watermarkImageHeight) / 2;
            } else if (watermarkPosition == WatermarkPosition.bottomLeft) {
                x = 0;
                y = srcHeight - watermarkImageHeight;
            } else if (watermarkPosition == WatermarkPosition.bottomRight) {
                x = srcWidth - watermarkImageWidth;
                y = srcHeight - watermarkImageHeight;
            }
            graphics2D.drawImage(watermarkBufferedImage, x, y, watermarkImageWidth, watermarkImageHeight, null);

            imageOutputStream = ImageIO.createImageOutputStream(destFile);
            imageWriter = ImageIO.getImageWritersByFormatName(FilenameUtils.getExtension(destFile.getName()))
                    .next();
            imageWriter.setOutput(imageOutputStream);
            ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam();
            imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            imageWriteParam.setCompressionQuality(DEST_QUALITY / 100F);
            imageWriter.write(null, new IIOImage(destBufferedImage, null, null), imageWriteParam);
            imageOutputStream.flush();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (graphics2D != null) {
                graphics2D.dispose();
            }
            if (imageWriter != null) {
                imageWriter.dispose();
            }
            if (imageOutputStream != null) {
                try {
                    imageOutputStream.close();
                } catch (IOException e) {
                }
            }
        }
    } else {
        String gravity = "SouthEast";
        if (watermarkPosition == WatermarkPosition.topLeft) {
            gravity = "NorthWest";
        } else if (watermarkPosition == WatermarkPosition.topRight) {
            gravity = "NorthEast";
        } else if (watermarkPosition == WatermarkPosition.center) {
            gravity = "Center";
        } else if (watermarkPosition == WatermarkPosition.bottomLeft) {
            gravity = "SouthWest";
        } else if (watermarkPosition == WatermarkPosition.bottomRight) {
            gravity = "SouthEast";
        }
        IMOperation operation = new IMOperation();
        operation.gravity(gravity);
        operation.dissolve(alpha);
        operation.quality((double) DEST_QUALITY);
        operation.addImage(watermarkFile.getPath());
        operation.addImage(srcFile.getPath());
        operation.addImage(destFile.getPath());
        if (type == Type.graphicsMagick) {
            CompositeCmd compositeCmd = new CompositeCmd(true);
            if (graphicsMagickPath != null) {
                compositeCmd.setSearchPath(graphicsMagickPath);
            }
            try {
                compositeCmd.run(operation);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (IM4JavaException e) {
                e.printStackTrace();
            }
        } else {
            CompositeCmd compositeCmd = new CompositeCmd(false);
            if (imageMagickPath != null) {
                compositeCmd.setSearchPath(imageMagickPath);
            }
            try {
                compositeCmd.run(operation);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (IM4JavaException e) {
                e.printStackTrace();
            }
        }
    }
}