Examples with BufferedImage java.awt.image.BufferedImage used on opensource projects

Example 61 with BufferedImage

use of java.awt.image.BufferedImage in project gephi by gephi.

the class GradientSliderUI method createCheckerPaint.

private static void createCheckerPaint() {
    int k = 4;
    BufferedImage bi = new BufferedImage(2 * k, 2 * k, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = bi.createGraphics();
    g.setColor(Color.white);
    g.fillRect(0, 0, 2 * k, 2 * k);
    g.setColor(Color.lightGray);
    g.fillRect(0, 0, k, k);
    g.fillRect(k, k, k, k);
    checkerPaint = new TexturePaint(bi, new Rectangle(0, 0, bi.getWidth(), bi.getHeight()));
}

Example 62 with BufferedImage

use of java.awt.image.BufferedImage in project gephi by gephi.

the class Java2dHelper method loadCompatibleImage.

public static BufferedImage loadCompatibleImage(URL resource) throws IOException {
    BufferedImage image = ImageIO.read(resource);
    BufferedImage compatibleImage = createCompatibleImage(image.getWidth(), image.getHeight());
    Graphics g = compatibleImage.getGraphics();
    g.drawImage(image, 0, 0, null);
    g.dispose();
    image = null;
    return compatibleImage;
}

Example 63 with BufferedImage

use of java.awt.image.BufferedImage in project gephi by gephi.

the class Java2dHelper method createThumbnail.

public static BufferedImage createThumbnail(BufferedImage image, int requestedThumbSize) {
    float ratio = (float) image.getWidth() / (float) image.getHeight();
    int width = image.getWidth();
    BufferedImage thumb = image;
    do {
        width /= 2;
        if (width < requestedThumbSize) {
            width = requestedThumbSize;
        }
        BufferedImage temp = new BufferedImage(width, (int) (width / ratio), BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2 = temp.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g2.drawImage(thumb, 0, 0, temp.getWidth(), temp.getHeight(), null);
        g2.dispose();
        thumb = temp;
    } while (width != requestedThumbSize);
    return thumb;
}

Example 64 with BufferedImage

use of java.awt.image.BufferedImage in project gephi by gephi.

the class Sparkline method getImage.

public BufferedImage getImage(TimelineModel model, int width, int height) {
    double newMin = model.getCustomMin();
    double newMax = model.getCustomMax();
    TimelineChart newChart = model.getChart();
    if (chart == null || newMax != max || newMin != min || image.getWidth() != width || image.getHeight() != height || newChart != chart) {
        min = newMin;
        max = newMax;
        chart = newChart;
        if (chart != null) {
            double minX = chart.getMinX().doubleValue();
            double maxX = chart.getMaxX().doubleValue();
            int sparklineWidth = (int) (((maxX - minX) / (max - min)) * width);
            parameters = new SparklineParameters(sparklineWidth, height);
            parameters.setTransparentBackground(true);
            parameters.setDrawArea(true);
            image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
            int sparklineX = (int) ((minX - min) / (max - min) * width);
            BufferedImage sparklineImage = draw();
            Graphics g = image.getGraphics();
            g.drawImage(sparklineImage, sparklineX, 0, null);
            g.dispose();
        } else {
            return null;
        }
    }
    return image;
}

Example 65 with BufferedImage

use of java.awt.image.BufferedImage in project gephi by gephi.

the class TickGraph method draw.

private BufferedImage draw() {
    final BufferedImage image = new BufferedImage(parameters.getWidth(), parameters.getHeight(), BufferedImage.TYPE_INT_ARGB);
    final Graphics2D g = image.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    if (parameters.getType().equals(TickParameters.TickType.DATE)) {
        drawDate(g);
    } else {
        drawReal(g);
    }
    return image;
}