Example usage for java.awt.image BufferedImage createGraphics

Introduction

In this page you can find the example usage for java.awt.image BufferedImage createGraphics.

Prototype

public Graphics2D createGraphics() 

Source Link

Document

Creates a Graphics2D , which can be used to draw into this BufferedImage .

Usage

From source file:org.wkm.mtool.service.QRCodeService.java

/**
 * ??(QRCode)//from  w  w w. j  a va 2  s . co  m
 * @param content
 * @param imgFile
 */
private void encoderQRCode(String content, File imgFile) {
    try {
        Qrcode qrcodeHandler = new Qrcode();
        qrcodeHandler.setQrcodeErrorCorrect('M');
        qrcodeHandler.setQrcodeEncodeMode('B');
        qrcodeHandler.setQrcodeVersion(7);

        System.out.println(content);
        byte[] contentBytes = content.getBytes(Consts.UTF_8.name());

        BufferedImage bufImg = new BufferedImage(140, 140, BufferedImage.TYPE_INT_RGB);

        Graphics2D gs = bufImg.createGraphics();

        gs.setBackground(Color.WHITE);
        gs.clearRect(0, 0, 140, 140);

        // ? > BLACK
        gs.setColor(Color.BLACK);

        // ??? ???
        int pixoff = 2;
        //  > ?
        if (contentBytes.length > 0 && contentBytes.length < 120) {
            boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);
            for (int i = 0; i < codeOut.length; i++) {
                for (int j = 0; j < codeOut.length; j++) {
                    if (codeOut[j][i]) {
                        gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);
                    }
                }
            }
        } else {
            System.err.println("QRCode content bytes length = " + contentBytes.length + " not in [ 0,120 ]. ");
        }

        gs.dispose();
        bufImg.flush();

        // ??QRCode
        ImageIO.write(bufImg, "png", imgFile);

    } catch (Exception e) {
        log.info("Exception:" + e.getMessage());
    }
}

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From source file:net.sf.jabref.gui.PdfPreviewPanel.java

private BufferedImage resizeImage(BufferedImage originalImage, int width, int height, int type) {
    int h = originalImage.getHeight();
    int w = originalImage.getWidth();
    if ((height == 0) || (width == 0)) {
        height = h;//from   w  w w. j  ava 2s.c om
        width = w;
    } else {
        float factorH = (float) height / (float) h;
        float factorW = (float) width / (float) w;

        if (factorH < factorW) {
            // use factorH, only width has to be changed as height is
            // already correct
            width = Math.round(w * factorH);
        } else {
            width = Math.round(h * factorW);
        }
    }

    BufferedImage resizedImage = new BufferedImage(width, height, type);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(originalImage, 0, 0, width, height, null);
    return resizedImage;
}

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From source file:ch.fork.AdHocRailway.ui.utils.ImageTools.java

private BufferedImage ImageToBufferedImage(Image image, int width, int height) {
    BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = dest.createGraphics();
    g2.drawImage(image, 0, 0, null);/*from  w  w w  .j  a  v a  2s.c om*/
    g2.dispose();
    return dest;
}

---

From source file:org.lmn.fc.common.datatranslators.DataExporter.java

/***********************************************************************************************
 * exportComponent()./*from  w  w w .j a v a  2  s .  co m*/
 *
 * @param exportable
 * @param filename
 * @param timestamp
 * @param type
 * @param width
 * @param height
 * @param log
 * @param clock
 *
 * @return boolean
 */

public static boolean exportComponent(final ExportableComponentInterface exportable, final String filename,
        final boolean timestamp, final String type, final int width, final int height, final Vector<Vector> log,
        final ObservatoryClockInterface clock) {
    final String SOURCE = "DataExporter.exportComponent()";
    boolean boolSuccess;

    //        String[] arrayNames = ImageIO.getWriterFormatNames();
    //
    //        for (int i = 0;
    //             i < arrayNames.length;
    //             i++)
    //            {
    //            String arrayName = arrayNames[i];
    //            System.out.println("DataExporter.exportComponent() FORMAT NAME=" + arrayName);
    //            }
    //
    boolSuccess = false;

    if ((exportable != null) && (filename != null) && (!EMPTY_STRING.equals(filename)) && (type != null)
            && (!EMPTY_STRING.equals(type)) && (log != null) && (clock != null)
            && (Arrays.asList(ImageIO.getWriterFormatNames()).contains(type))) {
        try {
            final File file;
            final int intRealWidth;
            final int intRealHeight;

            file = new File(FileUtilities.buildFullFilename(filename, timestamp, type));
            FileUtilities.overwriteFile(file);

            intRealWidth = width;
            intRealHeight = height;

            // Support all current formats
            if ((FileUtilities.png.equalsIgnoreCase(type)) || (FileUtilities.jpg.equalsIgnoreCase(type))
                    || (FileUtilities.gif.equalsIgnoreCase(type))) {
                BufferedImage buffer;
                final Graphics2D graphics2D;

                LOGGER.debugTimedEvent(LOADER_PROPERTIES.isTimingDebug(),
                        "DataExporter.exportComponent() writing [file " + file.getAbsolutePath() + "] [width="
                                + intRealWidth + "] [height=" + intRealHeight + "]");

                buffer = new BufferedImage(intRealWidth, intRealHeight, BufferedImage.TYPE_INT_RGB);

                // Create a graphics context on the buffered image
                graphics2D = buffer.createGraphics();

                // Draw on the image
                graphics2D.clearRect(0, 0, intRealWidth, intRealHeight);
                exportable.paintForExport(graphics2D, intRealWidth, intRealHeight);

                // Export the image
                ImageIO.write(buffer, type, file);
                graphics2D.dispose();
                boolSuccess = true;

                SimpleEventLogUIComponent
                        .logEvent(
                                log, EventStatus.INFO, METADATA_TARGET_COMPONENT + METADATA_ACTION_EXPORT
                                        + METADATA_FILENAME + file.getAbsolutePath() + TERMINATOR,
                                SOURCE, clock);
                // Help the GC?
                buffer = null;

                ObservatoryInstrumentHelper.runGarbageCollector();
            } else {
                SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL, METADATA_TARGET_COMPONENT
                        + METADATA_ACTION_EXPORT + METADATA_RESULT + ERROR_INVALID_FORMAT + TERMINATOR, SOURCE,
                        clock);
            }
        }

        catch (IllegalArgumentException exception) {
            SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL,
                    METADATA_TARGET_COMPONENT + METADATA_ACTION_EXPORT + METADATA_RESULT
                            + EXCEPTION_PARAMETER_INVALID + TERMINATOR + SPACE + METADATA_EXCEPTION
                            + exception.getMessage() + TERMINATOR,
                    SOURCE, clock);
        }

        catch (SecurityException exception) {
            SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL,
                    METADATA_TARGET_COMPONENT + METADATA_ACTION_EXPORT + METADATA_RESULT + ERROR_ACCESS_DENIED
                            + TERMINATOR + SPACE + METADATA_EXCEPTION + exception.getMessage() + TERMINATOR,
                    SOURCE, clock);
        }

        catch (FileNotFoundException exception) {
            SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL,
                    METADATA_TARGET_COMPONENT + METADATA_ACTION_EXPORT + METADATA_RESULT + ERROR_FILE_NOT_FOUND
                            + TERMINATOR + SPACE + METADATA_EXCEPTION + exception.getMessage() + TERMINATOR,
                    SOURCE, clock);
        }

        catch (IOException exception) {
            SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL,
                    METADATA_TARGET_COMPONENT + METADATA_ACTION_EXPORT + METADATA_RESULT + ERROR_FILE_SAVE
                            + TERMINATOR + SPACE + METADATA_EXCEPTION + exception.getMessage() + TERMINATOR,
                    SOURCE, clock);
        }
    } else {
        SimpleEventLogUIComponent.logEvent(log, EventStatus.FATAL, METADATA_TARGET_COMPONENT
                + METADATA_ACTION_EXPORT + METADATA_RESULT + ERROR_COMPONENT + TERMINATOR, SOURCE, clock);
    }

    return (boolSuccess);
}

---

From source file:costumetrade.common.verify.ImageVerification.java

public Pair<String, BufferedImage> create() {
    int x = 0, fontHeight = 0, codeY = 0;
    int red = 0, green = 0, blue = 0;

    x = width / (codeCount + 2);//?
    fontHeight = height - 2;//
    codeY = height - 4;/*from ww  w  .  ja va  2 s  . co m*/

    // ?buffer
    BufferedImage buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = buffImg.createGraphics();
    // ?
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, width, height);
    // 
    g.setFont(new Font("Arial", Font.PLAIN, fontHeight));

    for (int i = 0; i < lineCount; i++) {

        int xs = RandomUtils.nextInt(0, width);
        int ys = RandomUtils.nextInt(0, height);
        int xe = xs + RandomUtils.nextInt(0, width / 8);
        int ye = ys + RandomUtils.nextInt(0, height / 8);
        red = RandomUtils.nextInt(0, 255);
        green = RandomUtils.nextInt(0, 255);
        blue = RandomUtils.nextInt(0, 255);
        g.setColor(new Color(red, green, blue));
        g.drawLine(xs, ys, xe, ye);
    }

    // randomCode???
    StringBuilder randomCode = new StringBuilder();
    // ?codeCount??
    for (int i = 0; i < codeCount; i++) {
        String strRand = String.valueOf(codeSequence[RandomUtils.nextInt(0, codeSequence.length)]);
        // ????
        red = RandomUtils.nextInt(0, 255);
        green = RandomUtils.nextInt(0, 255);
        blue = RandomUtils.nextInt(0, 255);
        g.setColor(new Color(red, green, blue));
        g.drawString(strRand, (i + 1) * x, codeY);
        // ??
        randomCode.append(strRand);
    }
    // ????Session
    return new Pair<String, BufferedImage>(randomCode.toString(), buffImg);
}

---

From source file:fi.helsinki.opintoni.service.ImageService.java

private BufferedImage toJpg(BufferedImage bufferedImage) {
    BufferedImage jpgImage = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(),
            BufferedImage.TYPE_INT_RGB);
    jpgImage.createGraphics().drawImage(bufferedImage, 0, 0, Color.BLACK, null);
    return jpgImage;
}

---

From source file:doge.photo.DogePhotoManipulator.java

private void render(BufferedImage sourceImage, BufferedImage destinationImage) {
    Graphics2D destinationGraphics = destinationImage.createGraphics();
    try {/* w  ww. j a  va2s . c o m*/
        setGraphicsHints(destinationGraphics);
        renderBackground(sourceImage, destinationImage, destinationGraphics);
        renderOverlay(destinationImage, destinationGraphics);
    } finally {
        destinationGraphics.dispose();
    }
}

---

From source file:com.igormaznitsa.jhexed.values.HexSVGImageValue.java

@Override
public void prerasterizeIcon(final Shape shape) {
    try {/*from w  ww .  j  a  v a2  s .  c  o m*/
        final Rectangle r = shape.getBounds();
        final BufferedImage img = this.image.rasterize(r.width, r.height, BufferedImage.TYPE_INT_ARGB);
        final BufferedImage result = new BufferedImage(r.width, r.height, BufferedImage.TYPE_INT_ARGB);
        final Graphics2D g = result.createGraphics();
        g.setClip(shape);
        g.drawImage(img, 0, 0, null);
        g.dispose();
        this.prerasterized = result;
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

---

From source file:AttributesApp.java

public AttributesApp() {
    setBackground(Color.lightGray);
    setSize(500, 200);/*from  ww  w.  ja va 2  s  . c o m*/

    attribString = new AttributedString(text);

    GeneralPath star = new GeneralPath();
    star.moveTo(0, 0);
    star.lineTo(10, 30);
    star.lineTo(-10, 10);
    star.lineTo(10, 10);
    star.lineTo(-10, 30);
    star.closePath();
    GraphicAttribute starShapeAttr = new ShapeGraphicAttribute(star, GraphicAttribute.TOP_ALIGNMENT, false);
    attribString.addAttribute(TextAttribute.CHAR_REPLACEMENT, starShapeAttr, 0, 1);
    attribString.addAttribute(TextAttribute.FOREGROUND, new Color(255, 255, 0), 0, 1);

    int index = text.indexOf("Java Source");
    attribString.addAttribute(TextAttribute.FOREGROUND, Color.blue, index, index + 7);
    Font font = new Font("sanserif", Font.ITALIC, 40);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 7);

    loadImage();
    BufferedImage bimage = new BufferedImage(image.getWidth(this), image.getHeight(this),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D big = bimage.createGraphics();
    big.drawImage(image, null, this);
    GraphicAttribute javaImageAttr = new ImageGraphicAttribute(bimage, GraphicAttribute.TOP_ALIGNMENT, 0, 0);

    index = text.indexOf("Java");
    attribString.addAttribute(TextAttribute.CHAR_REPLACEMENT, javaImageAttr, index - 1, index);

    font = new Font("serif", Font.BOLD, 60);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 4);
    attribString.addAttribute(TextAttribute.FOREGROUND, new Color(243, 63, 163), index, index + 4); // Start and end indexes.

    index = text.indexOf("source");
    attribString.addAttribute(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON, index, index + 2);

    index = text.indexOf("and support");
    font = new Font("sanserif", Font.ITALIC, 40);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 10);

    attribString.addAttribute(TextAttribute.FOREGROUND, Color.white, index, index + 2); // Start and end indexes.
    attribString.addAttribute(TextAttribute.FOREGROUND, Color.blue, index + 3, index + 10); // Start and end indexes.
}

---

From source file:org.geotools.renderer.chart.ChartGraphicFactory.java

BufferedImage drawChart(JFreeChart chart, int w, int h) {
    BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_4BYTE_ABGR);
    Graphics2D gr = bi.createGraphics();
    try {/*from w ww  . jav a2s  .c  o  m*/
        chart.draw(gr, new Rectangle2D.Double(0, 0, w, h));
    } finally {
        gr.dispose();
    }

    return bi;
}

---

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