Example usage for java.awt Graphics2D dispose

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:ClipImage.java

public void paint(Graphics g) {
    w = getWidth();/*ww w .  j a v a  2 s.  c  o m*/
    h = getHeight();

    if (w <= 0 || h <= 0)
        return;

    Graphics2D g2 = createDemoGraphics2D(g);
    drawDemo(g2);
    g2.dispose();

    if (offImg != null && isShowing()) {
        g.drawImage(offImg, 0, 0, this);
    }

    newBufferedImage = false;
}

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From source file:Main.java

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g.create();
    String text = getWidth() + "x" + getHeight();
    FontMetrics fm = g2d.getFontMetrics();
    int x = (getWidth() - fm.stringWidth(text)) / 2;
    int y = ((getHeight() - fm.getHeight()) / 2) + fm.getAscent();
    g2d.drawString(text, x, y);//from   w w w . ja  v a 2 s.  co m
    g2d.dispose();
}

---

From source file:com.alibaba.webx.tutorial.app1.module.screen.simple.SayHiImage.java

private void writeImage(OutputStream out) throws IOException {
    BufferedImage img = new BufferedImage(800, 600, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = img.createGraphics();

    g2d.setPaint(Color.red);//from  ww w  .  j  av  a2  s . c  om
    g2d.setFont(new Font("Serif", Font.BOLD, 36));
    g2d.drawString("Hi there, how are you doing today?", 5, g2d.getFontMetrics().getHeight());
    g2d.dispose();

    ImageIO.write(img, "jpg", out);
}

---

From source file:Utils.java

/** 
 * Renders a paragraph of text (line breaks ignored) to an image (created and returned). 
 *
 * @param font The font to use//from   w  ww  .  jav  a 2 s  . c  o m
 * @param textColor The color of the text
 * @param text The message
 * @param width The width the text should be limited to
 * @return An image with the text rendered into it
 */
public static BufferedImage renderTextToImage(Font font, Color textColor, String text, int width) {
    Hashtable map = new Hashtable();
    map.put(TextAttribute.FONT, font);
    AttributedString attributedString = new AttributedString(text, map);
    AttributedCharacterIterator paragraph = attributedString.getIterator();

    FontRenderContext frc = new FontRenderContext(null, false, false);
    int paragraphStart = paragraph.getBeginIndex();
    int paragraphEnd = paragraph.getEndIndex();
    LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(paragraph, frc);

    float drawPosY = 0;

    //First time around, just determine the height
    while (lineMeasurer.getPosition() < paragraphEnd) {
        TextLayout layout = lineMeasurer.nextLayout(width);

        // Move it down
        drawPosY += layout.getAscent() + layout.getDescent() + layout.getLeading();
    }

    BufferedImage image = createCompatibleImage(width, (int) drawPosY);
    Graphics2D graphics = (Graphics2D) image.getGraphics();
    graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    drawPosY = 0;
    lineMeasurer.setPosition(paragraphStart);
    while (lineMeasurer.getPosition() < paragraphEnd) {
        TextLayout layout = lineMeasurer.nextLayout(width);

        // Move y-coordinate by the ascent of the layout.
        drawPosY += layout.getAscent();

        /* Compute pen x position.  If the paragraph is
           right-to-left, we want to align the TextLayouts
           to the right edge of the panel.
         */
        float drawPosX;
        if (layout.isLeftToRight()) {
            drawPosX = 0;
        } else {
            drawPosX = width - layout.getAdvance();
        }

        // Draw the TextLayout at (drawPosX, drawPosY).
        layout.draw(graphics, drawPosX, drawPosY);

        // Move y-coordinate in preparation for next layout.
        drawPosY += layout.getDescent() + layout.getLeading();
    }

    graphics.dispose();
    return image;
}

---

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  .  j av  a  2 s .  c  o m*/
        chart.draw(gr, new Rectangle2D.Double(0, 0, w, h));
    } finally {
        gr.dispose();
    }

    return bi;
}

---

From source file:Main.java

public void repaint(BufferedImage orig, BufferedImage copy) {
    Graphics2D g = copy.createGraphics();
    g.drawImage(orig, 0, 0, null);//from   ww w.  j  av a 2  s.  c om
    g.setColor(Color.RED);
    if (captureRect == null) {
        return;
    }
    g.draw(captureRect);
    g.setColor(new Color(25, 25, 23, 10));
    g.fill(captureRect);
    g.dispose();
}

---

From source file:com.tur0kk.facebook.FacebookClient.java

public String publishPicture(String msg, Image image, String placeId) throws IOException {
    OAuthRequest request = new OAuthRequest(Verb.POST, "https://graph.facebook.com/v2.2/me/photos"); // request node
    request.addHeader("Authorization", "Bearer " + accesTokenString); // authentificate

    // check input to avoid error responses
    if (msg != null && image != null) {
        // facebook requires multipart post structure
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.addTextBody("message", msg); // description

        if (placeId != null && !"".equals(placeId)) {
            builder.addTextBody("place", placeId); // add link to FabLab site if property is set in preferences
        }/*w  ww .j a v  a  2  s . co  m*/

        // convert image to bytearray and append to multipart
        BufferedImage bimage = new BufferedImage(image.getWidth(null), image.getHeight(null),
                BufferedImage.TYPE_INT_ARGB);
        Graphics2D bGr = bimage.createGraphics();
        bGr.drawImage(image, 0, 0, null);
        bGr.dispose();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(bimage, "png", baos);
        builder.addBinaryBody(msg, baos.toByteArray(), ContentType.MULTIPART_FORM_DATA, "test.png");

        // generate multipart byte stream and add to payload of post package
        HttpEntity multipart = builder.build();
        ByteArrayOutputStream multipartOutStream = new ByteArrayOutputStream(
                (int) multipart.getContentLength());
        multipart.writeTo(multipartOutStream);
        request.addPayload(multipartOutStream.toByteArray());

        // set header of post package
        Header contentType = multipart.getContentType();
        request.addHeader(contentType.getName(), contentType.getValue());

        // send and response answer
        Response response = request.send();
        return response.getBody();
    } else {
        throw new RuntimeException("message and image needed");
    }
}

---

From source file:hudson.jbpm.PluginImpl.java

/**
 * Draws a JPEG for a process definition
 * //from  w  w w.  j a v  a 2s .c o  m
 * @param req
 * @param rsp
 * @param processDefinition
 * @throws IOException
 */
public void doProcessDefinitionImage(StaplerRequest req, StaplerResponse rsp,
        @QueryParameter("processDefinition") long processDefinition) throws IOException {

    JbpmContext context = getCurrentJbpmContext();
    ProcessDefinition definition = context.getGraphSession().getProcessDefinition(processDefinition);
    FileDefinition fd = definition.getFileDefinition();
    byte[] bytes = fd.getBytes("processimage.jpg");
    rsp.setContentType("image/jpeg");
    ServletOutputStream output = rsp.getOutputStream();

    BufferedImage loaded = ImageIO.read(new ByteArrayInputStream(bytes));
    BufferedImage aimg = new BufferedImage(loaded.getWidth(), loaded.getHeight(), BufferedImage.TYPE_INT_RGB);
    Graphics2D g = aimg.createGraphics();
    g.drawImage(loaded, null, 0, 0);
    g.dispose();
    ImageIO.write(aimg, "jpg", output);
    output.flush();
    output.close();
}

---

From source file:org.jfree.chart.demo.SuperDemo.java

public static void writeChartAsPDF(OutputStream outputstream, JFreeChart jfreechart, int i, int j,
        FontMapper fontmapper) throws IOException {
    Rectangle rectangle = new Rectangle(i, j);
    Document document = new Document(rectangle, 50F, 50F, 50F, 50F);
    try {//from   w  w w .  j  av a2  s  .c  om
        PdfWriter pdfwriter = PdfWriter.getInstance(document, outputstream);
        document.addAuthor("JFreeChart");
        document.addSubject("Demonstration");
        document.open();
        PdfContentByte pdfcontentbyte = pdfwriter.getDirectContent();
        PdfTemplate pdftemplate = pdfcontentbyte.createTemplate(i, j);
        Graphics2D graphics2d = pdftemplate.createGraphics(i, j, fontmapper);
        java.awt.geom.Rectangle2D.Double double1 = new java.awt.geom.Rectangle2D.Double(0.0D, 0.0D, i, j);
        jfreechart.draw(graphics2d, double1);
        graphics2d.dispose();
        pdfcontentbyte.addTemplate(pdftemplate, 0.0F, 0.0F);
    } catch (DocumentException documentexception) {
        System.err.println(documentexception.getMessage());
    }
    document.close();
}

---

From source file:WeeklyReport.Sections.Bookings.java

public Image bookingsByPODImage(PdfWriter writer) throws BadElementException {
    JFreeChart chart = new Bookings().bookingsByPODChart();
    PdfContentByte contentByte = writer.getDirectContent();
    PdfTemplate template = contentByte.createTemplate(600f, 400f);
    Graphics2D graphics2d = template.createGraphics(600f, 400f, new DefaultFontMapper());
    Rectangle2D rectangle2d = new Rectangle2D.Float(10f, 0, 500f, 400f);
    chart.draw(graphics2d, rectangle2d);
    graphics2d.dispose();

    Image chartImage = Image.getInstance(template);
    return chartImage;
}

---

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