Example usage for java.awt Graphics2D setFont

Introduction

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

Prototype

public abstract void setFont(Font font);

Source Link

Document

Sets this graphics context's font to the specified font.

Usage

From source file:Main.java

public static BufferedImage createRotatedTextImage(String text, int angle, Font ft) {
    Graphics2D g2d = null;
    try {/*from  w  w  w. j  av a2s.  c o m*/
        if (text == null || text.trim().length() == 0) {
            return null;
        }

        BufferedImage stringImage = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);

        g2d = (Graphics2D) stringImage.getGraphics();
        g2d.setFont(ft);

        FontMetrics fm = g2d.getFontMetrics();
        Rectangle2D bounds = fm.getStringBounds(text, g2d);

        TextLayout tl = new TextLayout(text, ft, g2d.getFontRenderContext());

        g2d.dispose();
        g2d = null;

        return createRotatedImage(tl, (int) bounds.getWidth(), (int) bounds.getHeight(), angle);
    } catch (Exception e) {
        e.printStackTrace();

        if (g2d != null) {
            g2d.dispose();
        }
    }

    return null;
}

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From source file:net.noday.core.utils.Captcha.java

public static BufferedImage gen(String text, int width, int height) throws IOException {
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);
    Graphics2D g = (Graphics2D) bi.getGraphics();
    g.setColor(Color.GRAY);/*from w w  w  .j  a  va2  s  .  c o  m*/
    g.fillRect(0, 0, width, height);
    for (int i = 0; i < 10; i++) {
        g.setColor(randColor(150, 250));
        g.drawOval(random.nextInt(110), random.nextInt(24), 5 + random.nextInt(10), 5 + random.nextInt(10));
        Font f = new Font("Arial", Font.ITALIC, 20);
        g.setFont(f);
        g.setColor(randColor(10, 240));
        g.drawString(text, 4, 24);
    }
    return bi;
}

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From source file:org.gitools.ui.app.heatmap.drawer.AbstractHeatmapDrawer.java

/**
 * Automatically change the font size to fit in the cell height.
 *
 * @param g           the Graphics2D object
 * @param cellHeight  the cell height// ww  w  .ja v  a2s . c om
 * @param minFontSize the min font size
 * @return Returns true if the new font size fits in the cell height, false if it doesn't fit.
 */
protected static boolean calculateFontSize(Graphics2D g, int cellHeight, int minFontSize) {

    float fontHeight = g.getFontMetrics().getHeight();

    float fontSize = g.getFont().getSize();
    while (fontHeight > (cellHeight - 2) && fontSize > minFontSize) {
        fontSize--;
        g.setFont(g.getFont().deriveFont(fontSize));
        fontHeight = g.getFontMetrics().getHeight();
    }

    return fontHeight <= (cellHeight - 2);
}

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From source file:ala.soils2sat.DrawingUtils.java

/**
 * Draws the text by creating a rectange centered around x, y
 *
 * @param g/* ww  w  .  ja va  2s .c om*/
 * @param font
 * @param x
 * @param y
 * @return The rectangle that bounds the text
 */
public static Rectangle drawCentredText(Graphics2D g, Font font, String text, int x, int y) {
    g.setFont(font);
    FontMetrics fm = g.getFontMetrics(font);

    setPreferredAliasingMode(g);

    Rectangle ret = new Rectangle(x, y, 0, 0);

    if (text == null) {
        return ret;
    }
    String[] alines = text.split("\\n");
    ArrayList<String> lines = new ArrayList<String>();
    for (String s : alines) {
        if (s.length() > 0) {
            lines.add(s);
        }
    }
    int numlines = lines.size();
    if (numlines > 0) {
        int maxwidth = 0;
        int totalheight = 0;
        for (int idx = 0; idx < numlines; ++idx) {
            String line = lines.get(idx);
            int stringWidth = fm.stringWidth(line);
            if (stringWidth > maxwidth) {
                maxwidth = stringWidth;
            }
            totalheight += fm.getAscent() + fm.getDescent();
        }
        ret.width = maxwidth;
        ret.height = totalheight;
        ret.x = x - (maxwidth / 2);
        ret.y = y - (totalheight / 2);

        drawString(g, font, text, ret, TEXT_ALIGN_CENTER);

        return ret;
    }
    return ret;

}

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From source file:com.simiacryptus.util.Util.java

/**
 * To image buffered image.// w w  w  .  j  a  v  a 2  s  . com
 *
 * @param component the component
 * @return the buffered image
 */
public static BufferedImage toImage(@javax.annotation.Nonnull final Component component) {
    try {
        com.simiacryptus.util.Util.layout(component);
        @javax.annotation.Nonnull
        final BufferedImage img = new BufferedImage(component.getWidth(), component.getHeight(),
                BufferedImage.TYPE_INT_ARGB_PRE);
        final Graphics2D g = img.createGraphics();
        g.setColor(component.getForeground());
        g.setFont(component.getFont());
        component.print(g);
        return img;
    } catch (@javax.annotation.Nonnull final Exception e) {
        return null;
    }
}

---

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

public static void saveImageResultsToPng(String prefix, TopDocs hits, String queryImage, IndexReader ir)
        throws IOException {
    LinkedList<BufferedImage> results = new LinkedList<BufferedImage>();
    int width = 0;
    for (int i = 0; i < Math.min(hits.scoreDocs.length, 10); i++) {
        // hits.score(i)
        // hits.doc(i).get("descriptorImageIdentifier")
        BufferedImage tmp = ImageIO
                .read(new FileInputStream(ir.document(hits.scoreDocs[i].doc).get("descriptorImageIdentifier")));
        if (tmp.getHeight() > 200) {
            double factor = 200d / ((double) tmp.getHeight());
            tmp = ImageUtils.scaleImage(tmp, (int) (tmp.getWidth() * factor), 200);
        }/*from  w  ww . j a v  a2 s. c  om*/
        width += tmp.getWidth() + 5;
        results.add(tmp);
    }
    BufferedImage result = new BufferedImage(width, 220, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = (Graphics2D) result.getGraphics();
    g2.setColor(Color.black);
    g2.clearRect(0, 0, result.getWidth(), result.getHeight());
    g2.setColor(Color.green);
    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.scoreDocs[count].score + "", offset + 5, 12);
        offset += next.getWidth() + 5;
        count++;
    }
    ImageIO.write(result, "PNG", new File(prefix + "_" + (System.currentTimeMillis() / 1000) + ".png"));
}

---

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;/*ww  w  .j  a  v  a 2  s .  c o  m*/
        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"));
}

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From source file:juicebox.tools.utils.juicer.apa.APAPlotter.java

/**
 * Plot number value axis for color scale bar.
 *
 * @param g2      graphics2D object/*from  w  w  w  . ja v  a2  s.co  m*/
 * @param heatMap object
 */
private static void plotColorScaleValues(Graphics2D g2, HeatChart heatMap) {
    // size, increment calculations
    double valIncrement = Math.max(heatMap.getDataRange() / ((double) numDivisions), epsilon);
    double depthIncrement = ((double) (fullHeight - 2 * colorScaleVerticalMargin)) / ((double) numDivisions);
    int verticalDepth = fullHeight - colorScaleVerticalMargin;
    int csBarRightEdgeX = fullWidth - colorScaleHorizontalMargin - extraWidthBuffer;

    // formatting
    g2.setFont(heatMap.getAxisValuesFont());
    DecimalFormat df = new DecimalFormat("0.#");

    // draw each tick mark and its value
    for (double i = heatMap.getLowValue(); i <= heatMap
            .getHighValue(); i += valIncrement, verticalDepth -= depthIncrement) {

        if (i > heatMap.getHighValue() - epsilon)
            verticalDepth = colorScaleVerticalMargin;
        g2.drawString(df.format(i), csBarRightEdgeX + 5, verticalDepth); // value
        g2.drawLine(csBarRightEdgeX - 5, verticalDepth, csBarRightEdgeX, verticalDepth); // tick mark
    }
}

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From source file:weka.core.ChartUtils.java

/**
 * Render a combined histogram and pie chart from summary data
 * /*from  w  w  w.  ja  v  a 2s.c  o m*/
 * @param width the width of the resulting image
 * @param height the height of the resulting image
 * @param values the values for the chart
 * @param freqs the corresponding frequencies
 * @param additionalArgs optional arguments to the renderer (may be null)
 * @return a buffered image
 * @throws Exception if a problem occurs
 */
public static BufferedImage renderCombinedPieAndHistogramFromSummaryData(int width, int height,
        List<String> values, List<Double> freqs, List<String> additionalArgs) throws Exception {

    String plotTitle = "Combined Chart";
    String userTitle = getOption(additionalArgs, "-title");
    plotTitle = (userTitle != null) ? userTitle : plotTitle;

    List<String> opts = new ArrayList<String>();
    opts.add("-title=distribution");
    BufferedImage pie = renderPieChartFromSummaryData(width / 2, height, values, freqs, false, true, opts);

    opts.clear();
    opts.add("-title=histogram");
    BufferedImage hist = renderHistogramFromSummaryData(width / 2, height, values, freqs, opts);

    BufferedImage img = new BufferedImage(width, height + 20, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = img.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
    g2d.setFont(new Font("SansSerif", Font.BOLD, 12));
    g2d.setColor(Color.lightGray);
    g2d.fillRect(0, 0, width, height + 20);
    g2d.setColor(Color.black);
    FontMetrics fm = g2d.getFontMetrics();
    int fh = fm.getHeight();
    int sw = fm.stringWidth(plotTitle);

    g2d.drawImage(pie, 0, 20, null);
    g2d.drawImage(hist, width / 2 + 1, 20, null);
    g2d.drawString(plotTitle, width / 2 - sw / 2, fh + 2);
    g2d.dispose();

    return img;
}

---

From source file:weka.core.ChartUtils.java

/**
 * Render a combined histogram and box plot chart from summary data
 * //from  ww w.  ja v a 2 s .  c o m
 * @param width the width of the resulting image
 * @param height the height of the resulting image
 * @param bins the values for the chart
 * @param freqs the corresponding frequencies
 * @param summary the summary stats for the box plot
 * @param outliers an optional list of outliers for the box plot
 * @param additionalArgs optional arguments to the renderer (may be null)
 * @return a buffered image
 * @throws Exception if a problem occurs
 */
public static BufferedImage renderCombinedBoxPlotAndHistogramFromSummaryData(int width, int height,
        List<String> bins, List<Double> freqs, List<Double> summary, List<Double> outliers,
        List<String> additionalArgs) throws Exception {

    String plotTitle = "Combined Chart";
    String userTitle = getOption(additionalArgs, "-title");
    plotTitle = (userTitle != null) ? userTitle : plotTitle;

    List<String> opts = new ArrayList<String>();
    opts.add("-title=histogram");
    BufferedImage hist = renderHistogramFromSummaryData(width / 2, height, bins, freqs, opts);
    opts.clear();
    opts.add("-title=box plot");
    BufferedImage box = null;
    try {
        box = renderBoxPlotFromSummaryData(width / 2, height, summary, outliers, opts);
    } catch (Exception ex) {
        // if we can't generate the box plot (i.e. probably because
        // data is 100% missing) then just return the histogram
    }

    if (box == null) {
        width /= 2;
    }
    BufferedImage img = new BufferedImage(width, height + 20, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = img.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
    g2d.setFont(new Font("SansSerif", Font.BOLD, 12));
    g2d.setColor(Color.lightGray);
    g2d.fillRect(0, 0, width, height + 20);
    g2d.setColor(Color.black);
    FontMetrics fm = g2d.getFontMetrics();
    int fh = fm.getHeight();
    int sw = fm.stringWidth(plotTitle);

    if (box != null) {
        g2d.drawImage(box, 0, 20, null);
        g2d.drawImage(hist, width / 2 + 1, 20, null);
    } else {
        g2d.drawImage(hist, 0, 20, null);
    }
    g2d.drawString(plotTitle, width / 2 - sw / 2, fh + 2);
    g2d.dispose();

    return img;
}

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