Examples with Region sun.java2d.pipe.Region used on opensource projects

Example 6 with Region

use of sun.java2d.pipe.Region in project jdk8u_jdk by JetBrains.

the class SunGraphics2D method validateCompClip.

protected void validateCompClip() {
    int origClipState = clipState;
    if (usrClip == null) {
        clipState = CLIP_DEVICE;
        clipRegion = devClip;
    } else if (usrClip instanceof Rectangle2D) {
        clipState = CLIP_RECTANGULAR;
        if (usrClip instanceof Rectangle) {
            clipRegion = devClip.getIntersection((Rectangle) usrClip);
        } else {
            clipRegion = devClip.getIntersection(usrClip.getBounds());
        }
    } else {
        PathIterator cpi = usrClip.getPathIterator(null);
        int[] box = new int[4];
        ShapeSpanIterator sr = LoopPipe.getFillSSI(this);
        try {
            sr.setOutputArea(devClip);
            sr.appendPath(cpi);
            sr.getPathBox(box);
            Region r = Region.getInstance(box);
            r.appendSpans(sr);
            clipRegion = r;
            clipState = r.isRectangular() ? CLIP_RECTANGULAR : CLIP_SHAPE;
        } finally {
            sr.dispose();
        }
    }
    if (origClipState != clipState && (clipState == CLIP_SHAPE || origClipState == CLIP_SHAPE)) {
        validFontInfo = false;
        invalidatePipe();
    }
}

Example 7 with Region

use of sun.java2d.pipe.Region in project jdk8u_jdk by JetBrains.

the class SunGraphics2D method drawRenderedImage.

/**
     * Draws an image, applying a transform from image space into user space
     * before drawing.
     * The transformation from user space into device space is done with
     * the current transform in the Graphics2D.
     * The given transformation is applied to the image before the
     * transform attribute in the Graphics2D state is applied.
     * The rendering attributes applied include the clip, transform,
     * and composite attributes. Note that the result is
     * undefined, if the given transform is noninvertible.
     * @param img The image to be drawn. Does nothing if img is null.
     * @param xform The transformation from image space into user space.
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
public void drawRenderedImage(RenderedImage img, AffineTransform xform) {
    if (img == null) {
        return;
    }
    // BufferedImage case: use a simple drawImage call
    if (img instanceof BufferedImage) {
        BufferedImage bufImg = (BufferedImage) img;
        drawImage(bufImg, xform, null);
        return;
    }
    // transformState tracks the state of transform and
    // transX, transY contain the integer casts of the
    // translation factors
    boolean isIntegerTranslate = (transformState <= TRANSFORM_INT_TRANSLATE) && isIntegerTranslation(xform);
    // Include padding for interpolation/antialiasing if necessary
    int pad = isIntegerTranslate ? 0 : 3;
    Region clip;
    try {
        clip = getCompClip();
    } catch (InvalidPipeException e) {
        return;
    }
    // Determine the region of the image that may contribute to
    // the clipped drawing area
    Rectangle region = getImageRegion(img, clip, transform, xform, pad, pad);
    if (region.width <= 0 || region.height <= 0) {
        return;
    }
    // where both are integer translations.
    if (isIntegerTranslate) {
        // Use optimized code
        // Note that drawTranslatedRenderedImage calls copyImage
        // which takes the user space to device space transform into
        // account, but we need to provide the image space to user space
        // translations.
        drawTranslatedRenderedImage(img, region, (int) xform.getTranslateX(), (int) xform.getTranslateY());
        return;
    }
    // General case: cobble the necessary region into a single Raster
    Raster raster = img.getData(region);
    // Make a new Raster with the same contents as raster
    // but starting at (0, 0).  This raster is thus in the same
    // coordinate system as the SampleModel of the original raster.
    WritableRaster wRaster = Raster.createWritableRaster(raster.getSampleModel(), raster.getDataBuffer(), null);
    // If the original raster was in a different coordinate
    // system than its SampleModel, we need to perform an
    // additional translation in order to get the (minX, minY)
    // pixel of raster to be pixel (0, 0) of wRaster.  We also
    // have to have the correct width and height.
    int minX = raster.getMinX();
    int minY = raster.getMinY();
    int width = raster.getWidth();
    int height = raster.getHeight();
    int px = minX - raster.getSampleModelTranslateX();
    int py = minY - raster.getSampleModelTranslateY();
    if (px != 0 || py != 0 || width != wRaster.getWidth() || height != wRaster.getHeight()) {
        wRaster = wRaster.createWritableChild(px, py, width, height, 0, 0, null);
    }
    // Now we have a BufferedImage starting at (0, 0)
    // with the same contents that started at (minX, minY)
    // in raster.  So we must draw the BufferedImage with a
    // translation of (minX, minY).
    AffineTransform transXform = (AffineTransform) xform.clone();
    transXform.translate(minX, minY);
    ColorModel cm = img.getColorModel();
    BufferedImage bufImg = new BufferedImage(cm, wRaster, cm.isAlphaPremultiplied(), null);
    drawImage(bufImg, transXform, null);
}

Example 8 with Region

use of sun.java2d.pipe.Region in project jdk8u_jdk by JetBrains.

the class SunGraphics2D method doCopyArea.

private void doCopyArea(int x, int y, int w, int h, int dx, int dy) {
    if (w <= 0 || h <= 0) {
        return;
    }
    SurfaceData theData = surfaceData;
    if (theData.copyArea(this, x, y, w, h, dx, dy)) {
        return;
    }
    if (transformState > TRANSFORM_TRANSLATESCALE) {
        throw new InternalError("transformed copyArea not implemented yet");
    }
    // REMIND: This method does not deal with missing data from the
    // source object (i.e. it does not send exposure events...)
    Region clip = getCompClip();
    Composite comp = composite;
    if (lastCAcomp != comp) {
        SurfaceType dsttype = theData.getSurfaceType();
        CompositeType comptype = imageComp;
        if (CompositeType.SrcOverNoEa.equals(comptype) && theData.getTransparency() == Transparency.OPAQUE) {
            comptype = CompositeType.SrcNoEa;
        }
        lastCAblit = Blit.locate(dsttype, comptype, dsttype);
        lastCAcomp = comp;
    }
    double[] coords = { x, y, x + w, y + h, x + dx, y + dy };
    transform.transform(coords, 0, coords, 0, 3);
    x = (int) Math.ceil(coords[0] - 0.5);
    y = (int) Math.ceil(coords[1] - 0.5);
    w = ((int) Math.ceil(coords[2] - 0.5)) - x;
    h = ((int) Math.ceil(coords[3] - 0.5)) - y;
    dx = ((int) Math.ceil(coords[4] - 0.5)) - x;
    dy = ((int) Math.ceil(coords[5] - 0.5)) - y;
    // In case of negative scale transform, reflect the rect coords.
    if (w < 0) {
        w *= -1;
        x -= w;
    }
    if (h < 0) {
        h *= -1;
        y -= h;
    }
    Blit ob = lastCAblit;
    if (dy == 0 && dx > 0 && dx < w) {
        while (w > 0) {
            int partW = Math.min(w, dx);
            w -= partW;
            int sx = x + w;
            ob.Blit(theData, theData, comp, clip, sx, y, sx + dx, y + dy, partW, h);
        }
        return;
    }
    if (dy > 0 && dy < h && dx > -w && dx < w) {
        while (h > 0) {
            int partH = Math.min(h, dy);
            h -= partH;
            int sy = y + h;
            ob.Blit(theData, theData, comp, clip, x, sy, x + dx, sy + dy, w, partH);
        }
        return;
    }
    ob.Blit(theData, theData, comp, clip, x, y, x + dx, y + dy, w, h);
}

Example 9 with Region

use of sun.java2d.pipe.Region in project jdk8u_jdk by JetBrains.

the class SunGraphics2D method setDevClip.

public void setDevClip(int x, int y, int w, int h) {
    Region c = constrainClip;
    if (c == null) {
        devClip = Region.getInstanceXYWH(x, y, w, h);
    } else {
        devClip = c.getIntersectionXYWH(x, y, w, h);
    }
    validateCompClip();
}

Example 10 with Region

use of sun.java2d.pipe.Region in project jdk8u_jdk by JetBrains.

the class LWComponentPeer method findPeerAt.

// ---- UTILITY METHODS ---- //
/**
     * Finds a top-most visible component for the given point. The location is
     * specified relative to the peer's parent.
     */
LWComponentPeer<?, ?> findPeerAt(final int x, final int y) {
    final Rectangle r = getBounds();
    final Region sh = getRegion();
    final boolean found = isVisible() && sh.contains(x - r.x, y - r.y);
    return found ? this : null;
}