Example usage for java.awt.image DataBufferInt getData

Introduction

In this page you can find the example usage for java.awt.image DataBufferInt getData.

Prototype

public int[] getData(int bank) 

Source Link

Document

Returns the data array for the specified bank.

Usage

From source file:net.bioclipse.chart.ChartUtils.java

/**
 * Utility method for converting JFreeChart to an image
 * @param parent used for color correction 
 * @param chart the chart to be made into an image
 * @param width image width/* w  w  w.  ja  v a 2s  .  c  o  m*/
 * @param height image height
 * @return SWT Image of the chart 
 */
public static Image createChartImage(Composite parent, JFreeChart chart, int width, int height) {
    // Color adjustment

    Color swtBackground = parent.getBackground();
    java.awt.Color awtBackground = new java.awt.Color(swtBackground.getRed(), swtBackground.getGreen(),
            swtBackground.getRed());
    chart.setBackgroundPaint(awtBackground);

    // Draw the chart in an AWT buffered image
    BufferedImage bufferedImage = chart.createBufferedImage(width, height, null);

    // Get the data buffer of the image
    DataBuffer buffer = bufferedImage.getRaster().getDataBuffer();
    DataBufferInt intBuffer = (DataBufferInt) buffer;

    // Copy the data from the AWT buffer to a SWT buffer
    PaletteData paletteData = new PaletteData(0x00FF0000, 0x0000FF00, 0x000000FF);
    ImageData imageData = new ImageData(width, height, 32, paletteData);
    for (int bank = 0; bank < intBuffer.getNumBanks(); bank++) {
        int[] bankData = intBuffer.getData(bank);
        imageData.setPixels(0, bank, bankData.length, bankData, 0);
    }

    // Create an SWT image
    return new Image(parent.getDisplay(), imageData);
}

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