Example usage for java.awt Color getBlue

Introduction

In this page you can find the example usage for java.awt Color getBlue.

Prototype

public int getBlue() 

Source Link

Document

Returns the blue component in the range 0-255 in the default sRGB space.

Usage

From source file:org.polymap.rhei.batik.engine.svg.Svg2Png.java

/**
 * @param imageConfiguration//from w  w w  .  j  av  a2  s  .  co  m
 * @param color
 * @param newRGB
 * @return
 */
private static BufferedImage makeColorsTransparent(BufferedImage finalThresholdImage,
        ImageConfiguration imageConfiguration, Color color) {
    boolean found = imageConfiguration.getTransparenceConfigurations().stream().anyMatch(
            tc -> tc.red == color.getRed() && tc.green == color.getGreen() && tc.blue == color.getBlue());
    if (found) {
        finalThresholdImage = makeColorTransparent(finalThresholdImage, color);
    }
    return finalThresholdImage;
}

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From source file:org.pgptool.gui.ui.tools.UiUtils.java

public static void setLookAndFeel() {
    // NOTE: We doing it this way to prevent dead=locks that is sometimes
    // happens if do it in main thread
    Edt.invokeOnEdtAndWait(new Runnable() {
        @Override/*from   ww  w.  jav a 2  s  . c  om*/
        public void run() {
            try {
                UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                fixCheckBoxMenuItemForeground();
                fixFontSize();
            } catch (Throwable t) {
                log.error("Failed to set L&F", t);
            }
        }

        /**
         * In some cases (depends on OS theme) check menu item foreground is same as
         * bacground - thus it;'s invisible when cheked
         */
        private void fixCheckBoxMenuItemForeground() {
            UIDefaults defaults = UIManager.getDefaults();
            Color selectionForeground = defaults.getColor("CheckBoxMenuItem.selectionForeground");
            Color foreground = defaults.getColor("CheckBoxMenuItem.foreground");
            Color background = defaults.getColor("CheckBoxMenuItem.background");
            if (colorsDiffPercentage(selectionForeground, background) < 10) {
                // TODO: That doesn't actually affect defaults. Need to find out how to fix it
                defaults.put("CheckBoxMenuItem.selectionForeground", foreground);
            }
        }

        private int colorsDiffPercentage(Color c1, Color c2) {
            int diffRed = Math.abs(c1.getRed() - c2.getRed());
            int diffGreen = Math.abs(c1.getGreen() - c2.getGreen());
            int diffBlue = Math.abs(c1.getBlue() - c2.getBlue());

            float pctDiffRed = (float) diffRed / 255;
            float pctDiffGreen = (float) diffGreen / 255;
            float pctDiffBlue = (float) diffBlue / 255;

            return (int) ((pctDiffRed + pctDiffGreen + pctDiffBlue) / 3 * 100);
        }

        private void fixFontSize() {
            if (isJreHandlesScaling()) {
                log.info("JRE handles font scaling, won't change it");
                return;
            }
            log.info("JRE doesnt't seem to support font scaling");

            Toolkit toolkit = Toolkit.getDefaultToolkit();
            int dpi = toolkit.getScreenResolution();
            if (dpi == 96) {
                if (log.isDebugEnabled()) {
                    Font font = UIManager.getDefaults().getFont("TextField.font");
                    String current = font != null ? Integer.toString(font.getSize()) : "unknown";
                    log.debug(
                            "Screen dpi seem to be 96. Not going to change font size. Btw current size seem to be "
                                    + current);
                }
                return;
            }
            int targetFontSize = 12 * dpi / 96;
            log.debug("Screen dpi = " + dpi + ", decided to change font size to " + targetFontSize);
            setDefaultSize(targetFontSize);
        }

        private boolean isJreHandlesScaling() {
            try {
                JreVersion noNeedToScaleForVer = JreVersion.parseString("9");
                String jreVersionStr = System.getProperty("java.version");
                if (jreVersionStr != null) {
                    JreVersion curVersion = JreVersion.parseString(jreVersionStr);
                    if (noNeedToScaleForVer.compareTo(curVersion) <= 0) {
                        return true;
                    }
                }

                return false;
            } catch (Throwable t) {
                log.warn("Failed to see oif JRE can handle font scaling. Will assume it does. JRE version: "
                        + System.getProperty("java.version"), t);
                return true;
            }
        }

        public void setDefaultSize(int size) {
            Set<Object> keySet = UIManager.getLookAndFeelDefaults().keySet();
            Object[] keys = keySet.toArray(new Object[keySet.size()]);
            for (Object key : keys) {
                if (key != null && key.toString().toLowerCase().contains("font")) {
                    Font font = UIManager.getDefaults().getFont(key);
                    if (font != null) {
                        Font changedFont = font.deriveFont((float) size);
                        UIManager.put(key, changedFont);
                        Font doubleCheck = UIManager.getDefaults().getFont(key);
                        log.debug("Font size changed for " + key + ". From " + font.getSize() + " to "
                                + doubleCheck.getSize());
                    }
                }
            }
        }
    });
    log.info("L&F set");
}

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From source file:smanilov.mandelbrot.compute.Computer.java

/**
 * Mixes the given colors in the given proportion.
 *//*www  .  java  2 s . c o  m*/
private static Color mixColors(Color c1, Color c2, double proportion) {
    Color result = new Color((int) (c1.getRed() * (1 - proportion) + c2.getRed() * proportion),
            (int) (c1.getGreen() * (1 - proportion) + c2.getGreen() * proportion),
            (int) (c1.getBlue() * (1 - proportion) + c2.getBlue() * proportion));
    return result;
}

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From source file:org.opensha.commons.geo.RegionUtils.java

private static String colorToHex(Color c) {
    StringBuffer sb = new StringBuffer();
    sb.append(toHex(c.getAlpha()));/*from ww w  .  j  a v a2  s. c  om*/
    sb.append(toHex(c.getBlue()));
    sb.append(toHex(c.getGreen()));
    sb.append(toHex(c.getRed()));
    return sb.toString();
}

---

From source file:org.nuclos.client.common.Utils.java

public static Color getBestForegroundColor(Color background) {
    int backgroundBrightness = (background.getBlue() + background.getRed() * 2 + background.getGreen() * 3) / 6;
    return backgroundBrightness > 160 ? Color.BLACK : Color.WHITE;
}

---

From source file:org.kalypso.commons.java.util.StringUtilities.java

/**
 * Converts a Color into a String.//from  ww w . j  av  a 2s . c  o  m
 * <p>
 * String will have same format as specified in {@link StringUtilities#stringToColor(String)}
 * 
 * @param c
 * @throws IllegalArgumentException
 *           if color is null
 */
public static String colorToString(final Color c) {
    if (c == null)
        throw new IllegalArgumentException(
                Messages.getString("org.kalypso.commons.java.util.StringUtilities.1")); //$NON-NLS-1$

    final StringBuffer buf = new StringBuffer();

    buf.append(c.getRed()).append(";").append(c.getGreen()).append(";").append(c.getBlue()); //$NON-NLS-1$ //$NON-NLS-2$

    // alpha component is optional
    if (c.getAlpha() != 255)
        buf.append(";").append(c.getAlpha()); //$NON-NLS-1$

    return buf.toString();
}

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From source file:org.kalypso.ui.wizards.results.ResultSldHelper.java

/**
 * returns the interpolated color of a color map defined by start and end color.
 * /*from w w  w. j  a  v  a 2  s  .  c  o m*/
 * @param currentClass
 *          current class
 * @param numOfClasses
 *          number of all classes in which the colormap is divided.
 */
public static Color interpolateColor(final Color minColor, final Color maxColor, final int currentClass,
        final int numOfClasses) {
    // interpolate color
    final float[] minhsb = Color.RGBtoHSB(minColor.getRed(), minColor.getGreen(), minColor.getBlue(), null);
    final float[] maxhsb = Color.RGBtoHSB(maxColor.getRed(), maxColor.getGreen(), maxColor.getBlue(), null);

    final float minHue = minhsb[0];
    final float maxHue = maxhsb[0];

    final float minSat = minhsb[1];
    final float maxSat = maxhsb[1];

    final float minBri = minhsb[2];
    final float maxBri = maxhsb[2];

    final double Hue = minHue + (currentClass * (maxHue - minHue) / (numOfClasses - 1));
    final double Sat = minSat + (currentClass * (maxSat - minSat) / (numOfClasses - 1));
    final double Bri = minBri + (currentClass * (maxBri - minBri) / (numOfClasses - 1));

    final Color hsbColor = Color.getHSBColor((float) Hue, (float) Sat, (float) Bri);
    final Color rgbColor = new Color(hsbColor.getRed(), hsbColor.getGreen(), hsbColor.getBlue());

    return rgbColor;
}

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From source file:net.groupbuy.util.ImageUtils.java

/**
 * ????//  w ww .  ja v a 2 s. c om
 * 
 * @param color
 *            
 * @return ???
 */
private static String toHexEncoding(Color color) {
    String R, G, B;
    StringBuffer stringBuffer = new StringBuffer();
    R = Integer.toHexString(color.getRed());
    G = Integer.toHexString(color.getGreen());
    B = Integer.toHexString(color.getBlue());
    R = R.length() == 1 ? "0" + R : R;
    G = G.length() == 1 ? "0" + G : G;
    B = B.length() == 1 ? "0" + B : B;
    stringBuffer.append("#");
    stringBuffer.append(R);
    stringBuffer.append(G);
    stringBuffer.append(B);
    return stringBuffer.toString();
}

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From source file:imageprocessingproject.ImageHistogram.java

public static BufferedImage normalizeImage(BufferedImage image) {
    int height = image.getHeight();
    int width = image.getWidth();

    int r, g, b, minr = 255, ming = 255, minb = 255, maxr = 0, maxg = 0, maxb = 0;
    Color c;

    BufferedImage tempImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            c = new Color(image.getRGB(i, j));
            if (minr > c.getRed()) {
                minr = c.getRed();// w ww. j a v  a 2  s .  c  om
            }
            if (ming > c.getGreen()) {
                ming = c.getGreen();
            }
            if (minb > c.getBlue()) {
                minb = c.getBlue();
            }
            if (maxr < c.getRed()) {
                maxr = c.getRed();
            }
            if (maxg < c.getGreen()) {
                maxg = c.getGreen();
            }
            if (maxb < c.getBlue()) {
                maxb = c.getBlue();
            }
        }
    }

    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            c = new Color(image.getRGB(i, j));
            r = (int) ((c.getRed() - minr) * 255 / (maxr - minr));
            g = (int) ((c.getGreen() - ming) * 255 / (maxg - ming));
            b = (int) ((c.getBlue() - minb) * 255 / (maxb - minb));
            tempImage.setRGB(i, j, new Color(r, g, b, c.getAlpha()).getRGB());
        }
    }

    return tempImage;
}

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From source file:org.pentaho.reporting.engine.classic.core.modules.output.table.xls.helper.StaticExcelColorSupport.java

public static short getNearestColor(final Color awtColor, final Map triplets) {
    if (awtColor == null) {
        throw new NullPointerException();
    }/*from w w w.  j a  v a  2  s .  co m*/

    if (triplets == null || triplets.isEmpty()) {
        logger.warn("Unable to get triplet hashtable");
        return HSSFColor.BLACK.index;
    }

    short color = HSSFColor.BLACK.index;
    double minDiff = Double.MAX_VALUE;

    // get the color without the alpha chanel
    final float[] hsb = Color.RGBtoHSB(awtColor.getRed(), awtColor.getGreen(), awtColor.getBlue(), null);

    float[] excelHsb = null;
    final Iterator elements = triplets.values().iterator();
    while (elements.hasNext()) {
        final HSSFColor crtColor = (HSSFColor) elements.next();
        final short[] rgb = crtColor.getTriplet();
        excelHsb = Color.RGBtoHSB(rgb[0], rgb[1], rgb[2], excelHsb);

        final double weight = 3.0
                * (Math.min(Math.abs(excelHsb[0] - hsb[0]), Math.abs(excelHsb[0] - hsb[0] + 1)))
                + Math.abs(excelHsb[1] - hsb[1]) + Math.abs(excelHsb[2] - hsb[2]);

        if (weight < minDiff) {
            minDiff = weight;
            if (minDiff == 0) {
                // we found the color ...
                return crtColor.getIndex();
            }
            color = crtColor.getIndex();
        }
    }
    return color;
}

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