use of sun.print.ProxyGraphics2D in project jdk8u_jdk by JetBrains.
the class WPathGraphics method redrawRegion.
/**
* Have the printing application redraw everything that falls
* within the page bounds defined by <code>region</code>.
*/
@Override
public void redrawRegion(Rectangle2D region, double scaleX, double scaleY, Shape savedClip, AffineTransform savedTransform) throws PrinterException {
WPrinterJob wPrinterJob = (WPrinterJob) getPrinterJob();
Printable painter = getPrintable();
PageFormat pageFormat = getPageFormat();
int pageIndex = getPageIndex();
/* Create a buffered image big enough to hold the portion
* of the source image being printed.
*/
BufferedImage deepImage = new BufferedImage((int) region.getWidth(), (int) region.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
/* Get a graphics for the application to render into.
* We initialize the buffer to white in order to
* match the paper and then we shift the BufferedImage
* so that it covers the area on the page where the
* caller's Image will be drawn.
*/
Graphics2D g = deepImage.createGraphics();
ProxyGraphics2D proxy = new ProxyGraphics2D(g, wPrinterJob);
proxy.setColor(Color.white);
proxy.fillRect(0, 0, deepImage.getWidth(), deepImage.getHeight());
proxy.clipRect(0, 0, deepImage.getWidth(), deepImage.getHeight());
proxy.translate(-region.getX(), -region.getY());
/* Calculate the resolution of the source image.
*/
float sourceResX = (float) (wPrinterJob.getXRes() / scaleX);
float sourceResY = (float) (wPrinterJob.getYRes() / scaleY);
/* The application expects to see user space at 72 dpi.
* so change user space from image source resolution to
* 72 dpi.
*/
proxy.scale(sourceResX / DEFAULT_USER_RES, sourceResY / DEFAULT_USER_RES);
proxy.translate(-wPrinterJob.getPhysicalPrintableX(pageFormat.getPaper()) / wPrinterJob.getXRes() * DEFAULT_USER_RES, -wPrinterJob.getPhysicalPrintableY(pageFormat.getPaper()) / wPrinterJob.getYRes() * DEFAULT_USER_RES);
/* NB User space now has to be at 72 dpi for this calc to be correct */
proxy.transform(new AffineTransform(getPageFormat().getMatrix()));
proxy.setPaint(Color.black);
painter.print(proxy, pageFormat, pageIndex);
g.dispose();
/* We need to set the device clip using saved information.
* savedClip intersects the user clip with a clip that restricts
* the GDI rendered area of our BufferedImage to that which
* may correspond to a rotate or shear.
* The saved device transform is needed as the current transform
* is not likely to be the same.
*/
if (savedClip != null) {
deviceClip(savedClip.getPathIterator(savedTransform));
}
/* Scale the bounding rectangle by the scale transform.
* Because the scaling transform has only x and y
* scaling components it is equivalent to multiplying
* the x components of the bounding rectangle by
* the x scaling factor and to multiplying the y components
* by the y scaling factor.
*/
Rectangle2D.Float scaledBounds = new Rectangle2D.Float((float) (region.getX() * scaleX), (float) (region.getY() * scaleY), (float) (region.getWidth() * scaleX), (float) (region.getHeight() * scaleY));
/* Pull the raster data from the buffered image
* and pass it along to GDI.
*/
ByteComponentRaster tile = (ByteComponentRaster) deepImage.getRaster();
wPrinterJob.drawImage3ByteBGR(tile.getDataStorage(), scaledBounds.x, scaledBounds.y, scaledBounds.width, scaledBounds.height, 0f, 0f, deepImage.getWidth(), deepImage.getHeight());
}
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