java.awt.CompositeContext源码实例Demo-ICode联盟

类java.awt.CompositeContext源码实例Demo

下面列出了怎么用java.awt.CompositeContext的API类实例代码及写法，或者点击链接到github查看源代码。

源代码1 项目： stendhal 文件： Blend.java

@Override
public CompositeContext createContext(ColorModel srcColorModel,
		ColorModel dstColorModel,
		RenderingHints arg2) {
	switch (mode) {
	case MULTIPLY:
		return new MultiplyContext();
	// Modes with significant creation overhead (lookup tables). Cache those
	case SOFT_LIGHT:
		CompositeContext ctx = cache.get(Mode.SOFT_LIGHT);
		if (ctx == null) {
			ctx = new BlendContext(mode, color);
			cache.put(Mode.SOFT_LIGHT, ctx);
		}
		return ctx;
	default:
		return new BlendContext(mode, color);
	}
}

源代码2 项目： dragonwell8_jdk 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码3 项目： dragonwell8_jdk 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码4 项目： dragonwell8_jdk 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码5 项目： TencentKona-8 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码6 项目： TencentKona-8 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码7 项目： jdk8u60 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码8 项目： jdk8u60 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码9 项目： TrakEM2 文件： MultiplyARGBComposite.java

public CompositeContext createContext( ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints )
{
	final Composer c;
	if ( srcColorModel.getNumColorComponents() > 1 )
	{
		if ( srcColorModel.hasAlpha() )
			c = new ARGB2ARGB();
		else
			c = new RGB2ARGB();
	}
	else
		c = new Gray2ARGB();
	
	return new CompositeContext()
	{
		private Composer composer = c;
		public void compose( Raster src, Raster dstIn, WritableRaster dstOut )
		{
			final int[] srcPixel = new int[ 4 ];
			final int[] dstInPixel = new int[ 4 ];
			
			for ( int x = 0; x < dstOut.getWidth(); x++ )
			{
				for ( int y = 0; y < dstOut.getHeight(); y++ )
				{
					src.getPixel( x, y, srcPixel );
					dstIn.getPixel( x, y, dstInPixel );
					
					composer.compose( srcPixel, dstInPixel, alpha );
					
					dstOut.setPixel( x, y, dstInPixel );
				}
			}
		}

		public void dispose()
		{}
	};
}

源代码10 项目： TrakEM2 文件： AddARGBComposite.java

public CompositeContext createContext( ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints )
{
	final Composer c;
	if ( srcColorModel.getNumColorComponents() > 1 )
	{
		if ( srcColorModel.hasAlpha() )
			c = new ARGB2ARGB();
		else
			c = new RGB2ARGB();
	}
	else
		c = new Gray2ARGB();
	
	return new CompositeContext()
	{
		private Composer composer = c;
		public void compose( Raster src, Raster dstIn, WritableRaster dstOut )
		{
			final int[] srcPixel = new int[ 4 ];
			final int[] dstInPixel = new int[ 4 ];
			
			for ( int x = 0; x < dstOut.getWidth(); x++ )
			{
				for ( int y = 0; y < dstOut.getHeight(); y++ )
				{
					src.getPixel( x, y, srcPixel );
					dstIn.getPixel( x, y, dstInPixel );
					
					composer.compose( srcPixel, dstInPixel, alpha );
					
					dstOut.setPixel( x, y, dstInPixel );
				}
			}
		}

		public void dispose()
		{}
	};
}

源代码11 项目： openjdk-jdk8u 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码12 项目： openjdk-jdk8u 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码13 项目： openjdk-jdk8u-backup 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码14 项目： openjdk-jdk8u-backup 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码15 项目： Bytecoder 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int[] span = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码16 项目： Bytecoder 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码17 项目： openjdk-jdk9 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码18 项目： openjdk-jdk9 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码19 项目： openjdk-jdk9 文件： OpenJDKFillBug.java

@Override
public CompositeContext createContext(ColorModel srcColorModel,
                                      ColorModel dstColorModel,
                                      RenderingHints hints)
{
    return new CustomCompositeContext();
}

源代码20 项目： jdk8u-jdk 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码21 项目： jdk8u-jdk 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码22 项目： hottub 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码23 项目： hottub 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码24 项目： hottub 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码25 项目： openjdk-8-source 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码26 项目： openjdk-8-source 文件： GeneralCompositePipe.java

public TileContext(SunGraphics2D sg, PaintContext pCtx,
                   CompositeContext cCtx, ColorModel cModel) {
    sunG2D = sg;
    paintCtxt = pCtx;
    compCtxt = cCtx;
    compModel = cModel;
}

源代码27 项目： openjdk-8-source 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码28 项目： openjdk-8 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

源代码29 项目： openjdk-8 文件： GeneralCompositePipe.java

public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                            int[] abox) {
    RenderingHints hints = sg.getRenderingHints();
    ColorModel model = sg.getDeviceColorModel();
    PaintContext paintContext =
        sg.paint.createContext(model, devR, s.getBounds2D(),
                               sg.cloneTransform(),
                               hints);
    CompositeContext compositeContext =
        sg.composite.createContext(paintContext.getColorModel(), model,
                                   hints);
    return new TileContext(sg, paintContext, compositeContext, model);
}

源代码30 项目： jdk8u_jdk 文件： Blit.java

public void Blit(SurfaceData srcData,
                 SurfaceData dstData,
                 Composite comp,
                 Region clip,
                 int srcx, int srcy,
                 int dstx, int dsty,
                 int width, int height)
{
    ColorModel srcCM = srcData.getColorModel();
    ColorModel dstCM = dstData.getColorModel();
    // REMIND: Should get RenderingHints from sg2d
    CompositeContext ctx = comp.createContext(srcCM, dstCM,
                                              new RenderingHints(null));
    Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
    WritableRaster dstRas =
        (WritableRaster) dstData.getRaster(dstx, dsty, width, height);

    if (clip == null) {
        clip = Region.getInstanceXYWH(dstx, dsty, width, height);
    }
    int span[] = {dstx, dsty, dstx+width, dsty+height};
    SpanIterator si = clip.getSpanIterator(span);
    srcx -= dstx;
    srcy -= dsty;
    while (si.nextSpan(span)) {
        int w = span[2] - span[0];
        int h = span[3] - span[1];
        Raster tmpSrcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
                                              w, h, 0, 0, null);
        WritableRaster tmpDstRas = dstRas.createWritableChild(span[0], span[1],
                                                              w, h, 0, 0, null);
        ctx.compose(tmpSrcRas, tmpDstRas, tmpDstRas);
    }
    ctx.dispose();
}

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java.awt.BorderLayout