Examples with AlphaComposite java.awt.AlphaComposite used on opensource projects

Example 1 with AlphaComposite

use of java.awt.AlphaComposite in project EnrichmentMapApp by BaderLab.

the class AbstractChartLayer method draw.

@Override
public void draw(final Graphics2D g, final Shape shape, final CyNetworkView networkView, final View<? extends CyIdentifiable> view) {
    // Give JFreeChart a larger area to draw into, so the proportions of the chart elements looks better
    final double scale = 2.0;
    Rectangle2D newBounds = new Rectangle2D.Double(bounds.getX() * scale, bounds.getY() * scale, bounds.getWidth() * scale, bounds.getHeight() * scale);
    // Of course, we also have to ask Graphics2D to apply the inverse transformation
    final double invScale = 1.0 / scale;
    final AffineTransform at = new AffineTransform();
    at.scale(invScale, invScale);
    g.transform(at);
    // Check to see if we have a current alpha composite
    Composite comp = g.getComposite();
    if (comp instanceof AlphaComposite) {
        float alpha = ((AlphaComposite) comp).getAlpha();
        JFreeChart fc = getChart();
        Plot plot = fc.getPlot();
        plot.setForegroundAlpha(alpha);
        fc.draw(g, newBounds);
    } else {
        getChart().draw(g, newBounds);
    }
    // Make sure Graphics2D is "back to normal" before returning
    try {
        at.invert();
    } catch (NoninvertibleTransformException e) {
        e.printStackTrace();
    }
    g.transform(at);
}

Example 2 with AlphaComposite

use of java.awt.AlphaComposite in project archi by archimatetool.

the class GraphicsToGraphics2DAdaptor method setAlpha.

@Override
public void setAlpha(int alpha) {
    swtGraphics.setAlpha(alpha);
    currentState.alpha = alpha;
    Composite composite = getGraphics2D().getComposite();
    if (composite instanceof AlphaComposite) {
        AlphaComposite newComposite = AlphaComposite.getInstance(((AlphaComposite) composite).getRule(), (float) alpha / (float) 255);
        getGraphics2D().setComposite(newComposite);
    }
}

Example 3 with AlphaComposite

use of java.awt.AlphaComposite in project jdk8u_jdk by JetBrains.

the class BufferedMaskBlit method MaskBlit.

@Override
public void MaskBlit(SurfaceData src, SurfaceData dst, Composite comp, Region clip, int srcx, int srcy, int dstx, int dsty, int width, int height, byte[] mask, int maskoff, int maskscan) {
    if (width <= 0 || height <= 0) {
        return;
    }
    if (mask == null) {
        // no mask involved; delegate to regular blit loop
        if (blitop == null) {
            blitop = Blit.getFromCache(src.getSurfaceType(), CompositeType.AnyAlpha, this.getDestType());
        }
        blitop.Blit(src, dst, comp, clip, srcx, srcy, dstx, dsty, width, height);
        return;
    }
    AlphaComposite acomp = (AlphaComposite) comp;
    if (acomp.getRule() != AlphaComposite.SRC_OVER) {
        comp = AlphaComposite.SrcOver;
    }
    rq.lock();
    try {
        validateContext(dst, comp, clip);
        RenderBuffer buf = rq.getBuffer();
        int totalBytesRequired = 20 + (width * height * 4);
        /*
             * REMIND: we should fix this so that it works with tiles that
             *         are larger than the entire buffer, but the native
             *         OGL/D3DMaskBlit isn't even prepared for tiles larger
             *         than 32x32 pixels, so there's no urgency here...
             */
        rq.ensureCapacity(totalBytesRequired);
        // enqueue parameters and tile pixels
        int newpos = enqueueTile(buf.getAddress(), buf.position(), src, src.getNativeOps(), srcTypeVal, mask, mask.length, maskoff, maskscan, srcx, srcy, dstx, dsty, width, height);
        buf.position(newpos);
    } finally {
        rq.unlock();
    }
}

Example 4 with AlphaComposite

use of java.awt.AlphaComposite in project jdk8u_jdk by JetBrains.

the class BufferedMaskFill method MaskFill.

@Override
public void MaskFill(SunGraphics2D sg2d, SurfaceData sData, Composite comp, final int x, final int y, final int w, final int h, final byte[] mask, final int maskoff, final int maskscan) {
    AlphaComposite acomp = (AlphaComposite) comp;
    if (acomp.getRule() != AlphaComposite.SRC_OVER) {
        comp = AlphaComposite.SrcOver;
    }
    rq.lock();
    try {
        validateContext(sg2d, comp, BufferedContext.USE_MASK);
        // we adjust the mask length so that the mask ends on a
        // 4-byte boundary
        int maskBytesRequired;
        if (mask != null) {
            // we adjust the mask length so that the mask ends on a
            // 4-byte boundary
            maskBytesRequired = (mask.length + 3) & (~3);
        } else {
            // mask not needed
            maskBytesRequired = 0;
        }
        int totalBytesRequired = 32 + maskBytesRequired;
        RenderBuffer buf = rq.getBuffer();
        if (totalBytesRequired <= buf.capacity()) {
            if (totalBytesRequired > buf.remaining()) {
                // process the queue first and then enqueue the mask
                rq.flushNow();
            }
            buf.putInt(MASK_FILL);
            // enqueue parameters
            buf.putInt(x).putInt(y).putInt(w).putInt(h);
            buf.putInt(maskoff);
            buf.putInt(maskscan);
            buf.putInt(maskBytesRequired);
            if (mask != null) {
                // enqueue the mask
                int padding = maskBytesRequired - mask.length;
                buf.put(mask);
                if (padding != 0) {
                    buf.position(buf.position() + padding);
                }
            }
        } else {
            // queue is too small to accommodate entire mask; perform
            // the operation directly on the queue flushing thread
            rq.flushAndInvokeNow(new Runnable() {

                public void run() {
                    maskFill(x, y, w, h, maskoff, maskscan, mask.length, mask);
                }
            });
        }
    } finally {
        rq.unlock();
    }
}

Example 5 with AlphaComposite

use of java.awt.AlphaComposite in project jdk8u_jdk by JetBrains.

the class BufferedContext method setComposite.

private void setComposite(Composite comp, int flags) {
    // assert rq.lock.isHeldByCurrentThread();
    if (comp instanceof AlphaComposite) {
        AlphaComposite ac = (AlphaComposite) comp;
        rq.ensureCapacity(16);
        buf.putInt(SET_ALPHA_COMPOSITE);
        buf.putInt(ac.getRule());
        buf.putFloat(ac.getAlpha());
        buf.putInt(flags);
    } else if (comp instanceof XORComposite) {
        int xorPixel = ((XORComposite) comp).getXorPixel();
        rq.ensureCapacity(8);
        buf.putInt(SET_XOR_COMPOSITE);
        buf.putInt(xorPixel);
    } else {
        throw new InternalError("not yet implemented");
    }
}