Java PNGTranscoder.addTranscodingHint方法代碼示例

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
/**
 * Method for transforming SVG picture to PNG picture
 *
 * @param svgStream input stream of source SVG file
 * @param pngStream output stream of target PNG file
 * @param width     width of the target PNG file
 * @param height    height of the target PNG file
 */
public void convertSvgToPng(InputStream svgStream, OutputStream pngStream, Float width, Float height) {
    notNull(svgStream, IllegalArgumentException::new);
    notNull(pngStream, IllegalArgumentException::new);
    notNull(width, IllegalArgumentException::new);
    notNull(height, IllegalArgumentException::new);
    if (width <= 0 || height <= 0) {
        throw new IllegalArgumentException("Width and height muset be bigger than zero");
    }

    try {
        TranscoderInput input = new TranscoderInput(svgStream);
        TranscoderOutput output = new TranscoderOutput(pngStream);

        PNGTranscoder converter = new PNGTranscoder();
        converter.addTranscodingHint(PNGTranscoder.KEY_WIDTH, width);
        converter.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, height);

        converter.transcode(input, output);

    } catch (TranscoderException ex) {
        throw new SvgConverterException("Exception during transforming SVG to PNG", ex);
    }
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
@Override
public void generate(@Nonnull PartResponse pr, @Nonnull DomApplication da, @Nonnull SvgKey k, @Nonnull IResourceDependencyList rdl) throws Exception {
	//-- 1. Get the input as a theme-replaced resource
	String svg = da.internalGetThemeManager().getThemeReplacedString(rdl, k.getRurl());

	//-- 2. Now generate the thingy using the Batik transcoder:
	PNGTranscoder coder = new PNGTranscoder();
	//		coder.addTranscodingHint(PNGTranscoder., null);
	TranscoderInput in = new TranscoderInput(new StringReader(svg));
	TranscoderOutput out = new TranscoderOutput(pr.getOutputStream());

	if(k.getWidth() != -1 && k.getHeight() != -1) {
		coder.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, Float.valueOf(k.getWidth()));
		coder.addTranscodingHint(SVGAbstractTranscoder.KEY_HEIGHT, Float.valueOf(k.getHeight()));
	}

	coder.transcode(in, out);

	if(!da.inDevelopmentMode()) { // Not gotten from WebContent or not in DEBUG mode? Then we may cache!
		pr.setCacheTime(da.getDefaultExpiryTime());
	}
	pr.setMime("image/png");
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
public Image getImage(double width, double height) throws IOException {

        PNGTranscoder t = new PNGTranscoder();
        t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, (float) width);
        t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, (float) height);

        t.addTranscodingHint(PNGTranscoder.KEY_FORCE_TRANSPARENT_WHITE, true);

        TranscoderInput input = new TranscoderInput(svgDocument);
        ByteArrayOutputStream ostream = new ByteArrayOutputStream(1000);
        TranscoderOutput output2 = new TranscoderOutput(ostream);
        try {
            // Save the image.
            t.transcode(input, output2);
        } catch (TranscoderException ex) {
            Exceptions.printStackTrace(ex);
        }

        BufferedImage imag = ImageIO.read(new ByteArrayInputStream(ostream.toByteArray()));
        // ImageIO.write(imag, "png", new File(new Date().getTime()+".png"));
        ostream.flush();
        ostream.close();

        return imag;
    }
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
private static void convertSvgToPng(String svg, String png, int origSize, int dstSize, Color bg) throws Exception {
    String svg_URI_input = Paths.get(svg).toUri().toURL().toString();
    TranscoderInput input_svg_image = new TranscoderInput(svg_URI_input);
    OutputStream png_ostream = new FileOutputStream(png);
    TranscoderOutput output_png_image = new TranscoderOutput(png_ostream);
    PNGTranscoder my_converter = new PNGTranscoder();
    my_converter.addTranscodingHint( PNGTranscoder.KEY_WIDTH, new Float( dstSize ) );
    my_converter.addTranscodingHint( PNGTranscoder.KEY_HEIGHT, new Float( dstSize ) );
    my_converter.addTranscodingHint( PNGTranscoder.KEY_AOI, new Rectangle( 0, 0, origSize, origSize) );
    if (bg != null) {
        my_converter.addTranscodingHint( PNGTranscoder.KEY_BACKGROUND_COLOR, bg);
    }
    my_converter.transcode(input_svg_image, output_png_image);
    png_ostream.flush();
    png_ostream.close();
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
private byte[] convertToPNG(WordCloud cloud) throws TranscoderException, IOException
{
    // Create a PNG transcoder
    PNGTranscoder t = new PNGTranscoder();

    // Set the transcoding hints
    t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, new Float(cloud.getWidth() + 20));
    t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, new Float(cloud.getHeight() + 20));

    // Create the transcoder input
    InputStream is = new ByteArrayInputStream(cloud.getSvg().getBytes());
    TranscoderInput input = new TranscoderInput(is);

    // Create the transcoder output
    ByteArrayOutputStream ostream = new ByteArrayOutputStream();
    TranscoderOutput output = new TranscoderOutput(ostream);

    // Save the image
    t.transcode(input, output);

    // Flush and close the stream
    ostream.flush();
    ostream.close();
    return ostream.toByteArray();
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
@Override
public void convert(final List<OutputPayload> outputPayloadList) throws Exception {
    // Create the transcoder input.

    for (final OutputPayload payload : outputPayloadList) {
        System.out.println(strings.getString("status_exporting_file", payload.getTargetFile()));

        final String svgPath = payload.getSvgPath();
        final String svgURI = new File(svgPath).toURL().toString();
        final TranscoderInput input = new TranscoderInput(svgURI);

        // Create a JPEG transcoder
        final PNGTranscoder t = new PNGTranscoder();

        final float floatWidth = Float.valueOf(payload.getWidth());
        final float floatHeight = Float.valueOf(payload.getHeight());

        t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, floatWidth);
        t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, floatHeight);

        // Create the transcoder output.
        final OutputStream ostream = new FileOutputStream(payload.getTargetFile());
        final TranscoderOutput output = new TranscoderOutput(ostream);
        // Save the image.
        t.transcode(input, output);

        // Flush and close the stream.
        ostream.flush();
        ostream.close();
    }
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
private static List<File> convertFile(File input, OutputConfig cfg) throws IOException, TranscoderException, FileNotFoundException {
    TranscoderInput ti = new TranscoderInput(input.toURI().toString());
    PNGTranscoder t = new PNGTranscoder();
    List<File> generated = new ArrayList<>();

    StringBuilder info = new StringBuilder();
    for (FileOutput out : cfg.getFiles()) {
        info.setLength(0);
        info.append(input.getName());

        if (out.getWidth() > 0) {
            t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, new Float(out.getWidth()));
            info.append(" w").append(out.getWidth());
        } else t.removeTranscodingHint(PNGTranscoder.KEY_WIDTH);

        if (out.getHeight() > 0) {
            t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, new Float(out.getHeight()));
            info.append(" h").append(out.getHeight());
        } else t.removeTranscodingHint(PNGTranscoder.KEY_HEIGHT);
        
        File outputFile = out.toOutputFile(input, cfg.getOutputDirectory(), cfg.getOutputName());
        if (outputFile.exists()) {
            outputFile.delete();
        }
        outputFile.getParentFile().mkdirs();
        outputFile.createNewFile();
        try (FileOutputStream outStram = new FileOutputStream(outputFile)) {
            t.transcode(ti, new TranscoderOutput(outStram));
            generated.add(outputFile);
            info.append(" ").append(outputFile.getAbsolutePath());
        }
        System.out.println(info.toString());
    }
    return generated;
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
@Override
public void exec(String[] args, String rawArgs, MessageReceivedEvent e, GuildPreferences guildPreferences) {
	// Quit and error out if none provided
	if (args.length == 0) {
		sendErrorEmbed(e.getChannel(), "Please provide a set name.");
		return;
	}

	ScryfallSet set = Grimoire.getInstance().getCardProvider().getSetByNameOrCode(rawArgs);
	if (set == null) {
		sendErrorEmbedFormat(e.getChannel(), "I couldn't find any sets with **'%s'** as its name or code.", rawArgs);
		return;
	}

	EmbedBuilder eb = new EmbedBuilder(set.getEmbed());

	try {
		// Attempt sending with set symbol
		ByteArrayOutputStream resultByteStream = new ByteArrayOutputStream();
		TranscoderInput transcoderInput = new TranscoderInput(set.getIconSvgUri());
		TranscoderOutput transcoderOutput = new TranscoderOutput(resultByteStream);
		PNGTranscoder pngTranscoder = new PNGTranscoder();
		pngTranscoder.addTranscodingHint(SVGAbstractTranscoder.KEY_HEIGHT, 64f);
		pngTranscoder.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, 64f);
		pngTranscoder.transcode(transcoderInput, transcoderOutput);
		resultByteStream.flush();
		e.getChannel().sendFile(resultByteStream.toByteArray(), "set.png", new MessageBuilder().setEmbed(eb.build()).build()).submit();
	} catch (Exception ex) {
		// Fall back to no set symbol if needed
		e.getChannel().sendMessage(eb.build());
	}
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
/**
 * Performs the export operation using the currentChart as the source.
 * 
 * @return true if the operation completed successfully, false otherwise
 */
private boolean doExportToPNG() {

	boolean completedSuccessfully = false;
	
	if (currentChart != null)
	{
		log.debug("Exporting to PNG...");
		
		try
		{
			currentChart.setVisibilityOfNoExportElements(false);
			
			PNGTranscoder t = new PNGTranscoder();
			float width = Double.valueOf((int) this.spnWidth.getValue()).floatValue();
			float height = Double.valueOf((int) this.spnHeight.getValue()).floatValue();
			
			t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, width);
			t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, height);
			t.addTranscodingHint(PNGTranscoder.KEY_BACKGROUND_COLOR, Color.WHITE);
			
			TranscoderInput input = new TranscoderInput(currentChart.getSVGDocument());
			String path = outputFile.getAbsolutePath();
			
			if (!path.toLowerCase().endsWith(".png"))
			{
				path = path + ".png";
			}
			
			OutputStream png_ostream = new FileOutputStream(path);
			TranscoderOutput output = new TranscoderOutput(png_ostream);
			t.transcode(input, output);
			png_ostream.flush();
			png_ostream.close();
			currentChart.setVisibilityOfNoExportElements(true);
			// svgCanvas.setDocument(currentChart.doc);
			
			completedSuccessfully = true;
		}
		catch (Exception e)
		{
			log.error("Error charting chart");
			
			MainWindow
					.getInstance()
					.getFeedbackMessagePanel()
					.updateFeedbackMessage(FeedbackMessageType.ERROR, FeedbackDisplayProtocol.AUTO_HIDE,
							"Error exporting file.  " + e.getMessage());
			
			e.printStackTrace();
			return false;
		}
	}
	
	return completedSuccessfully;
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
/**
 * Creates the required file on the filesystem
 *
 * @param file File to write too
 * @param icon WebIcon that we need to create a file of
 * @return size The size of the icon (this size must have the multiplier applied already)
 */
private File createFile(final File file, WebIcon icon, int size) {
	Semaphore oneToAdd = new Semaphore(1);
       /*
        * If there currently is a semaphore for the filename, the existing sema will be returned,
        * else the new semaphore will be added and return null (because there is no old value)
        */
	Semaphore sema = lockingMap.putIfAbsent(file.getName(), oneToAdd);
	if (sema == null) {
		sema = oneToAdd;
	}
	try {

		sema.acquire(); // Second concurrent user will wait here
		if (imageFileExists(file)) {
			return file;
		}
		file.createNewFile();

		Resource iconResource = applicationContext.getResource(icon.getPath());
		PNGTranscoder t = new PNGTranscoder();
		t.addTranscodingHint(PNGTranscoder.KEY_MAX_HEIGHT, new Float(size));
		t.addTranscodingHint(PNGTranscoder.KEY_MAX_WIDTH, new Float(size));
		t.addTranscodingHint(PNGTranscoder.KEY_BACKGROUND_COLOR, new Color(0, 0, 0, 0));
		OutputStream ostream = new FileOutputStream(file);

		// Create the transcoder input.
		TranscoderInput input = new TranscoderInput(iconResource.getInputStream());

		// Create the transcoder output.
		TranscoderOutput output = new TranscoderOutput(ostream);

		// Save the image.
		t.transcode(input, output);

		// Flush and close the stream.
		ostream.flush();
		ostream.close();
	} catch (Exception ex) {
		LOG.warn("Exception while creating file", ex);
		if (file.exists()) {
			file.delete();
		}
	} finally {
		sema.release();
	}
	return file;
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
private void convertToPng( String svg, OutputStream out )
    throws TranscoderException
{
    svg = replaceUnsafeSvgText( svg );

    PNGTranscoder transcoder = new PNGTranscoder();

    transcoder.addTranscodingHint( ImageTranscoder.KEY_BACKGROUND_COLOR, Color.WHITE );

    TranscoderInput input = new TranscoderInput( new StringReader( svg ) );

    TranscoderOutput output = new TranscoderOutput( out );

    transcoder.transcode( input, output );
}
 

import org.apache.batik.transcoder.image.PNGTranscoder; //導入方法依賴的package包/類
/**
 * Transcode file to PNG.
 *
 * @param file Output filename
 * @param width Width
 * @param height Height
 * @throws IOException On write errors
 * @throws TranscoderException On input/parsing errors.
 */
public void saveAsPNG(File file, int width, int height) throws IOException, TranscoderException {
  PNGTranscoder t = new PNGTranscoder();
  t.addTranscodingHint(PNGTranscoder.KEY_WIDTH, new Float(width));
  t.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, new Float(height));
  transcode(file, t);
}