Example usage for java.awt.image VolatileImage IMAGE_INCOMPATIBLE

Introduction

In this page you can find the example usage for java.awt.image VolatileImage IMAGE_INCOMPATIBLE.

Prototype

int IMAGE_INCOMPATIBLE

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Document

Validated image is incompatible with supplied GraphicsConfiguration object and should be re-created as appropriate.

Usage

From source file:net.sf.maltcms.chromaui.charts.FastHeatMapPlot.java

private void drawOffscreenImage(Image sourceImage) {
    // image creation
    if (offscreenBuffer == null) {
        offscreenBuffer = createCompatibleVolatileImage(sourceImage.getWidth(null), sourceImage.getHeight(null),
                Transparency.TRANSLUCENT);
    }//ww  w  . j av a  2s  .c  om
    do {
        if (offscreenBuffer.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) {
            // old vImg doesn't work with new GraphicsConfig; re-create it
            offscreenBuffer = createCompatibleVolatileImage(sourceImage.getWidth(null),
                    sourceImage.getHeight(null), Transparency.TRANSLUCENT);
        }
        Graphics2D g = offscreenBuffer.createGraphics();
        //
        // miscellaneous rendering commands...
        //
        g.drawImage(sourceImage, 0, 0, null);
        g.dispose();
    } while (offscreenBuffer.contentsLost());
}

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From source file:net.sf.maltcms.chromaui.charts.FastHeatMapPlot.java

private void drawFromOffscreenBuffer(Graphics2D g, Image sourceImage, Rectangle sourceArea,
        Rectangle targetArea) {/* w w w . j a va2  s .  co m*/
    // copying from the image (here, gScreen is the Graphics
    // object for the onscreen window)
    do {
        int returnCode = offscreenBuffer.validate(getGraphicsConfiguration());
        if (returnCode == VolatileImage.IMAGE_RESTORED) {
            // Contents need to be restored
            drawOffscreenImage(sourceImage); // restore contents
        } else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
            // old vImg doesn't work with new GraphicsConfig; re-create it
            offscreenBuffer = null;
            drawOffscreenImage(sourceImage);

        }
        int sx0, sx1, sy0, sy1, tx0, tx1, ty0, ty1;
        sx0 = sourceArea.x;
        //            sx1 = sourceArea.x + sourceArea.width;
        sy0 = sourceArea.y;
        //            sy1 = sourceArea.y + sourceArea.height;
        tx0 = targetArea.x;
        //            tx1 = targetArea.x + targetArea.width;
        ty0 = targetArea.y;
        //            ty1 = targetArea.y + targetArea.height;

        g.drawImage(offscreenBuffer.getSnapshot().getSubimage(sx0, sy0, sourceArea.width, sourceArea.height),
                tx0, ty0, targetArea.width, targetArea.height, null);
    } while (offscreenBuffer.contentsLost());

}

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