Examples with ImageWriter javax.imageio.ImageWriter used on opensource projects

Example 96 with ImageWriter

use of javax.imageio.ImageWriter in project jdk8u_jdk by JetBrains.

the class XDataTransferer method getPlatformMappingsForFlavor.

/*
     * The XDnD protocol prescribes that the Atoms used as targets for data
     * transfer should have string names that represent the corresponding MIME
     * types.
     * To meet this requirement we return a list of formats that represent
     * MIME types to which the data in this flavor can be translated by the Data
     * Transfer subsystem.
     */
public LinkedHashSet<String> getPlatformMappingsForFlavor(DataFlavor df) {
    LinkedHashSet<String> natives = new LinkedHashSet<>(1);
    if (df == null) {
        return natives;
    }
    String charset = df.getParameter("charset");
    String baseType = df.getPrimaryType() + "/" + df.getSubType();
    String mimeType = baseType;
    if (charset != null && DataTransferer.isFlavorCharsetTextType(df)) {
        mimeType += ";charset=" + charset;
    }
    // doesn't require translation.
    if (df.getRepresentationClass() != null && (df.isRepresentationClassInputStream() || df.isRepresentationClassByteBuffer() || byte[].class.equals(df.getRepresentationClass()))) {
        natives.add(mimeType);
    }
    if (DataFlavor.imageFlavor.equals(df)) {
        String[] mimeTypes = ImageIO.getWriterMIMETypes();
        if (mimeTypes != null) {
            for (int i = 0; i < mimeTypes.length; i++) {
                Iterator writers = ImageIO.getImageWritersByMIMEType(mimeTypes[i]);
                while (writers.hasNext()) {
                    ImageWriter imageWriter = (ImageWriter) writers.next();
                    ImageWriterSpi writerSpi = imageWriter.getOriginatingProvider();
                    if (writerSpi != null && writerSpi.canEncodeImage(getDefaultImageTypeSpecifier())) {
                        natives.add(mimeTypes[i]);
                        break;
                    }
                }
            }
        }
    } else if (DataTransferer.isFlavorCharsetTextType(df)) {
        // "text/plain" MIME type.
        if (DataFlavor.stringFlavor.equals(df)) {
            baseType = "text/plain";
        }
        for (String encoding : DataTransferer.standardEncodings()) {
            if (!encoding.equals(charset)) {
                natives.add(baseType + ";charset=" + encoding);
            }
        }
        // Add a MIME format without specified charset.
        if (!natives.contains(baseType)) {
            natives.add(baseType);
        }
    }
    return natives;
}

Example 97 with ImageWriter

use of javax.imageio.ImageWriter in project jdk8u_jdk by JetBrains.

the class LUTCompareTest method createTestImage.

/* Create test image with two frames:
     *  1) with {red, red} palette
     *  2) with {blue, red } palette
     */
private static Image createTestImage() throws IOException {
    BufferedImage frame1 = createFrame(new int[] { 0xffff0000, 0xffff0000 });
    BufferedImage frame2 = createFrame(new int[] { 0xff0000ff, 0xffff0000 });
    ImageWriter writer = ImageIO.getImageWritersByFormatName("GIF").next();
    ImageOutputStream ios = ImageIO.createImageOutputStream(new File("lut_test.gif"));
    ImageWriteParam param = writer.getDefaultWriteParam();
    writer.setOutput(ios);
    writer.prepareWriteSequence(null);
    writer.writeToSequence(new IIOImage(frame1, null, null), param);
    writer.writeToSequence(new IIOImage(frame2, null, null), param);
    writer.endWriteSequence();
    writer.reset();
    writer.dispose();
    ios.flush();
    ios.close();
    return Toolkit.getDefaultToolkit().createImage("lut_test.gif");
}

Example 98 with ImageWriter

use of javax.imageio.ImageWriter in project jdk8u_jdk by JetBrains.

the class BmpBigDestinationTest method main.

public static void main(String[] args) {
    try {
        BufferedImage src = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = src.createGraphics();
        g.setColor(Color.red);
        g.fillRect(0, 0, 100, 100);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageWriter iw = (ImageWriter) ImageIO.getImageWritersByFormatName(format).next();
        if (iw == null) {
            throw new RuntimeException("No writer available. Test failed.");
        }
        iw.setOutput(ImageIO.createImageOutputStream(baos));
        iw.write(src);
        byte[] data = baos.toByteArray();
        ImageReader ir = (ImageReader) ImageIO.getImageReadersByFormatName(format).next();
        ir.setInput(ImageIO.createImageInputStream(new ByteArrayInputStream(data)));
        Iterator specifiers = ir.getImageTypes(0);
        ImageTypeSpecifier typeSpecifier = null;
        if (specifiers.hasNext()) {
            typeSpecifier = (ImageTypeSpecifier) specifiers.next();
        }
        ImageReadParam param = new ImageReadParam();
        BufferedImage dst = typeSpecifier.createBufferedImage(200, 200);
        param.setDestination(dst);
        ir.read(0, param);
        checkResults(src, dst);
    } catch (IOException e) {
        e.printStackTrace();
        throw new RuntimeException("Unexpected exception. Test failed.");
    }
}

Example 99 with ImageWriter

use of javax.imageio.ImageWriter in project jdk8u_jdk by JetBrains.

the class CompressionModeTest method doTest.

private static void doTest(int mode) {
    String fileFormat = "bmp";
    try {
        ImageWriter iw = (ImageWriter) ImageIO.getImageWritersBySuffix(fileFormat).next();
        if (iw == null) {
            throw new RuntimeException("No available image writer for " + fileFormat + " Test failed.");
        }
        File file = new File("image." + fileFormat);
        ImageOutputStream ios = ImageIO.createImageOutputStream(file);
        iw.setOutput(ios);
        BufferedImage bimg = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
        Graphics g = bimg.getGraphics();
        g.setColor(Color.green);
        g.fillRect(0, 0, 100, 100);
        ImageWriteParam param = iw.getDefaultWriteParam();
        param.setCompressionMode(mode);
        IIOMetadata meta = iw.getDefaultImageMetadata(new ImageTypeSpecifier(bimg), param);
        IIOImage iioImg = new IIOImage(bimg, null, meta);
        iw.write(null, iioImg, param);
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException("Test failed.");
    }
}

Example 100 with ImageWriter

use of javax.imageio.ImageWriter in project jdk8u_jdk by JetBrains.

the class TopDownTest method writeWithCompression.

private static void writeWithCompression(BufferedImage src, String compression) throws IOException {
    System.out.println("Compression: " + compression);
    ImageWriter writer = ImageIO.getImageWritersByFormatName("BMP").next();
    if (writer == null) {
        throw new RuntimeException("Test failed: no bmp writer available");
    }
    File fout = File.createTempFile(compression + "_", ".bmp", new File("."));
    ImageOutputStream ios = ImageIO.createImageOutputStream(fout);
    writer.setOutput(ios);
    BMPImageWriteParam param = (BMPImageWriteParam) writer.getDefaultWriteParam();
    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionType(compression);
    param.setTopDown(true);
    writer.write(null, new IIOImage(src, null, null), param);
    writer.dispose();
    ios.flush();
    ios.close();
    BufferedImage dst = ImageIO.read(fout);
    verify(dst);
}