Java GraphicsUtil类代码示例

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
protected CachableRed renderGNR() {
    AffineTransform at, rcAT;
    at = usr2dev;
    rcAT = new AffineTransform(at.getScaleX(), at.getShearY(),
                               at.getShearX(), at.getScaleY(),
                               0, 0);

    RenderContext rc = new RenderContext(rcAT, null, renderingHints);

    RenderedImage ri = rootFilter.createRendering(rc);
    if (ri == null)
        return null;

    CachableRed ret;
    ret = GraphicsUtil.wrap(ri);
    ret = setupCache(ret);

    int dx = Math.round((float)at.getTranslateX());
    int dy = Math.round((float)at.getTranslateY());
    ret = new TranslateRed(ret, ret.getMinX()+dx, ret.getMinY()+dy);
    ret = GraphicsUtil.convertTosRGB(ret);

    return ret;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * Should perform the equivilent action as
 * createRendering followed by drawing the RenderedImage to
 * Graphics2D, or return false.
 *
 * @param g2d The Graphics2D to draw to.
 * @return true if the paint call succeeded, false if
 *         for some reason the paint failed (in which
 *         case a createRendering should be used).
 */
public boolean paintRable(Graphics2D g2d) {
    // This optimization only apply if we are using
    // SrcOver.  Otherwise things break...
    Composite c = g2d.getComposite();
    if (!SVGComposite.OVER.equals(c))
        return false;

    // For the over mode we can just draw them in order...
    if (getCompositeRule() != CompositeRule.OVER)
        return false;

    ColorSpace crCS = getOperationColorSpace();
    ColorSpace g2dCS = GraphicsUtil.getDestinationColorSpace(g2d);
    if ((g2dCS == null) || (g2dCS != crCS)) {
        return false;
    }

    // System.out.println("drawImage : " + g2dCS +
    //                    crCS);
    Iterator i = getSources().iterator();
    while (i.hasNext()) {
        GraphicsUtil.drawImage(g2d, (Filter)i.next());
    }
    return true;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * Should perform the equivilent action as
 * createRendering followed by drawing the RenderedImage to
 * Graphics2D, or return false.
 *
 * @param g2d The Graphics2D to draw to.
 * @return true if the paint call succeeded, false if
 *         for some reason the paint failed (in which
 *         case a createRendering should be used).
 */
public boolean paintRable(Graphics2D g2d) {
    // This optimization only apply if we are using
    // SrcOver.  Otherwise things break...
    Composite c = g2d.getComposite();
    if (!SVGComposite.OVER.equals(c))
        return false;

    if (getPadMode() != PadMode.ZERO_PAD)
        return false;

    Rectangle2D padBounds = getPadRect();

    Shape clip = g2d.getClip();
    g2d.clip(padBounds);
    GraphicsUtil.drawImage(g2d, getSource());
    g2d.setClip(clip);
    return true;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * Should perform the equivilent action as 
 * createRendering followed by drawing the RenderedImage to 
 * Graphics2D, or return false.
 *
 * @param g2d The Graphics2D to draw to.
 * @return true if the paint call succeeded, false if
 *         for some reason the paint failed (in which 
 *         case a createRendering should be used).
 */
public boolean paintRable(Graphics2D g2d) {
    // This optimization only apply if we are using
    // SrcOver.  Otherwise things break...
    Composite c = g2d.getComposite();
    if (!SVGComposite.OVER.equals(c))
        return false;
    
    GraphicsUtil.drawImage(g2d, getSource());

    return true;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
public WritableRaster copyData(WritableRaster wr) {
    int tx0 = getXTile(wr.getMinX());
    int ty0 = getYTile(wr.getMinY());
    int tx1 = getXTile(wr.getMinX()+wr.getWidth() -1);
    int ty1 = getYTile(wr.getMinY()+wr.getHeight()-1);

    final boolean is_INT_PACK = 
        GraphicsUtil.is_INT_PACK_Data(getSampleModel(), false);

    for (int y=ty0; y<=ty1; y++)
        for (int x=tx0; x<=tx1; x++) {
            Raster r = getTile(x, y);
            if (is_INT_PACK)
                GraphicsUtil.copyData_INT_PACK(r, wr);
            else
                GraphicsUtil.copyData_FALLBACK(r, wr);
        }

    return wr;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * The constructor will instantiate a LookupOp instance using
 * a LookupOp, which is built using the four LUT
 * data obtained by the TransferFunction objects
 * funcs[0] : Alpha component transfer function
 * funcs[1] : Red component transfer function
 * funcs[2] : Green component transfer function
 * funcs[3] : Blue component transfer function
 */
public ComponentTransferRed(CachableRed src,
                            TransferFunction [] funcs,
                            RenderingHints hints) {
    super(src, src.getBounds(),
          GraphicsUtil.coerceColorModel(src.getColorModel(), false),
          src.getSampleModel(),
          null);

    byte [][] tableData = {funcs[1].getLookupTable(),
                           funcs[2].getLookupTable(),
                           funcs[3].getLookupTable(),
                           funcs[0].getLookupTable()};

    // Note that we create an anonymous subclass here.
    // For what ever reason this makes the Op work correctly.
    // If you remove this, it seems to get the color channels messed
    // up.  The downside is that I suspect that this means we are
    // falling into a more general, and hence slower case, but
    // at least it works....
    operation  =  new LookupOp(new ByteLookupTable(0, tableData), hints)
        { };
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
public ColorMatrixRed(CachableRed src, float[][] matrix){
    setMatrix(matrix);

    ColorModel srcCM = src.getColorModel();
    ColorSpace srcCS = null;
    if (srcCM != null)
        srcCS = srcCM.getColorSpace();
    ColorModel cm;
    if (srcCS == null)
        cm = GraphicsUtil.Linear_sRGB_Unpre;
    else {
        if (srcCS == ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB))
            cm = GraphicsUtil.Linear_sRGB_Unpre;
        else
            cm = GraphicsUtil.sRGB_Unpre;
    }

    SampleModel sm =
        cm.createCompatibleSampleModel(src.getWidth(),
                                       src.getHeight());

    init(src, src.getBounds(), cm, sm,
         src.getTileGridXOffset(), src.getTileGridYOffset(), null);
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * Copies data from this images tile grid into wr.  wr may
 * extend outside the bounds of this image in which case the
 * data in wr outside the bounds will not be touched.
 * @param wr Raster to fill with image data.
 */
public void copyToRaster(WritableRaster wr) {
    int tx0 = getXTile(wr.getMinX());
    int ty0 = getYTile(wr.getMinY());
    int tx1 = getXTile(wr.getMinX()+wr.getWidth() -1);
    int ty1 = getYTile(wr.getMinY()+wr.getHeight()-1);

    if (tx0 < minTileX) tx0 = minTileX;
    if (ty0 < minTileY) ty0 = minTileY;

    if (tx1 >= minTileX+numXTiles) tx1 = minTileX+numXTiles-1;
    if (ty1 >= minTileY+numYTiles) ty1 = minTileY+numYTiles-1;

    final boolean is_INT_PACK =
        GraphicsUtil.is_INT_PACK_Data(getSampleModel(), false);

    for (int y=ty0; y<=ty1; y++)
        for (int x=tx0; x<=tx1; x++) {
            Raster r = getTile(x, y);
            if (is_INT_PACK)
                GraphicsUtil.copyData_INT_PACK(r, wr);
            else
                GraphicsUtil.copyData_FALLBACK(r, wr);
        }
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
protected static ColorModel fixColorModel(CachableRed src) {
    ColorModel  cm = src.getColorModel();

    if (cm.hasAlpha()) {
        if (!cm.isAlphaPremultiplied())
            cm = GraphicsUtil.coerceColorModel(cm, true);
        return cm;
    }

    int b = src.getSampleModel().getNumBands()+1;
    if (b > 4)
        throw new IllegalArgumentException
            ("CompositeRed can only handle up to three band images");

    int [] masks = new int[4];
    for (int i=0; i < b-1; i++)
        masks[i] = 0xFF0000 >> (8*i);
    masks[3] = 0xFF << (8*(b-1));
    ColorSpace cs = cm.getColorSpace();

    return new DirectColorModel(cs, 8*b, masks[0], masks[1],
                                masks[2], masks[3],
                                true, DataBuffer.TYPE_INT);
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
public WritableRaster copyData(WritableRaster wr) {
    int xOff = ((int)Math.floor(wr.getMinX()/xStep))*xStep;
    int yOff = ((int)Math.floor(wr.getMinY()/yStep))*yStep;
    int x0   = wr.getMinX()-xOff;
    int y0   = wr.getMinY()-yOff;
    int tx0 = getXTile(x0);
    int ty0 = getYTile(y0);
    int tx1 = getXTile(x0+wr.getWidth() -1);
    int ty1 = getYTile(y0+wr.getHeight()-1);

    for (int y=ty0; y<=ty1; y++)
        for (int x=tx0; x<=tx1; x++) {
            Raster r = getTile(x, y);
            r = r.createChild(r.getMinX(),      r.getMinY(), 
                              r.getWidth(),     r.getHeight(),
                              r.getMinX()+xOff, r.getMinY()+yOff, null);
            if (is_INT_PACK)
                GraphicsUtil.copyData_INT_PACK(r, wr);
            else
                GraphicsUtil.copyData_FALLBACK(r, wr);
        }
    return wr;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
public WritableRaster copyData(WritableRaster wr) {
    ColorModel  cm    = getColorModel();
    CachableRed cr    = getSource();
    ColorModel  srcCM = cr.getColorModel();
    SampleModel srcSM = cr.getSampleModel();
    srcSM = srcSM.createCompatibleSampleModel(wr.getWidth(),
                                              wr.getHeight());
    WritableRaster srcWR;
    srcWR = Raster.createWritableRaster(srcSM, new Point(wr.getMinX(),
                                                         wr.getMinY()));
    getSource().copyData(srcWR);

    BufferedImage srcBI = new BufferedImage
        (srcCM, srcWR.createWritableTranslatedChild(0,0),
         srcCM.isAlphaPremultiplied(), null);
    BufferedImage dstBI = new BufferedImage
        (cm, wr.createWritableTranslatedChild(0,0),
         cm.isAlphaPremultiplied(), null);

    GraphicsUtil.copyData(srcBI, dstBI);

    return wr;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
@Override
public Graphics2D createGraphics(BufferedImage bi)
{
	Graphics2D graphics = GraphicsUtil.createGraphics(bi);
	if (isAntiAlias())
	{
		graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		//FIXME use JPG instead of PNG for smaller size?
	}
	return graphics;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
@Override
public Graphics2D createGraphics(BufferedImage bi)
{
	Graphics2D graphics = GraphicsUtil.createGraphics(bi);
	if (antiAlias)
	{
		graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		//FIXME use JPG instead of PNG for smaller size?
	}
	return graphics;
}
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
public Raster getRaster(int x, int y, int width, int height){

        // System.out.println("GetRaster: [" + x + ", " + y + ", " 
        //                    + width + ", " + height + "]");
        if ((raster == null)             ||
            (raster.getWidth() < width)  ||
            (raster.getHeight() < height)) {
            raster = rasterCM.createCompatibleWritableRaster(width, height);
        }

        WritableRaster wr
            = raster.createWritableChild(0, 0, width, height, x, y, null);

        tiled.copyData(wr);
        GraphicsUtil.coerceData(wr, tiled.getColorModel(), 
                                rasterCM.isAlphaPremultiplied());

        // On Mac OS X it always wants the raster at 0,0 if the
        // requested width and height matches raster we can just
        // return it.  Otherwise we create a translated child that
        // lives at 0,0.
        if ((raster.getWidth()  == width) &&
            (raster.getHeight() == height))
            return raster;

        return wr.createTranslatedChild(0,0);
    }
 

import org.apache.batik.ext.awt.image.GraphicsUtil; //导入依赖的package包/类
/**
 * Should perform the equivilent action as 
 * createRendering followed by drawing the RenderedImage to 
 * Graphics2D, or return false.
 *
 * @param g2d The Graphics2D to draw to.
 * @return true if the paint call succeeded, false if
 *         for some reason the paint failed (in which 
 *         case a createRendering should be used).
 */
public boolean paintRable(Graphics2D g2d) {
    // This optimization only apply if we are using
    // SrcOver.  Otherwise things break...
    Composite c = g2d.getComposite();
    if (!SVGComposite.OVER.equals(c))
        return false;
    
    ColorSpace g2dCS = GraphicsUtil.getDestinationColorSpace(g2d);
    if ((g2dCS == null) ||
        (g2dCS != ColorSpace.getInstance(ColorSpace.CS_sRGB))){
        // Only draw directly into sRGB destinations...
        return false;
    }

    // System.out.println("drawImage GNR: " + g2dCS);
    GraphicsNode gn = getGraphicsNode();
    if (getUsePrimitivePaint()){
        gn.primitivePaint(g2d);
    }
    else{
        gn.paint(g2d);
    }

    // Paint did the work...
    return true;
}