public int print(Graphics gc, PageFormat format, int pageIndex)
throws java.awt.print.PrinterException {
if (pageIndex > 0) {
out("page " + pageIndex + " requested, ending print job.");
return Printable.NO_SUCH_PAGE;
}
Dimension page =
new Dimension(
(int) format.getImageableWidth() - 1, (int) format.getImageableHeight() - 1);
Graphics2D g = (Graphics2D) gc;
out(
"asked to render page "
+ pageIndex
+ " in "
+ outpf(format)
+ " w/transform "
+ g.getTransform());
// note: supposedly, perhaps on Windows with JVM's 1.5 and newer, the
// transform scale provided can actually allow us to derive the DPI of the
// print device, which we could use for image rendering optimization's
// during prints. Mac OS X Snow Leopard w/JVM 1.6 always reports a 1.0
// scale though. And operations like "print preview" or "print to PDF"
// wouldn't have a fixed DPI anyway.
if (DEBUG.CONTAINMENT) {
g.setColor(Color.lightGray);
g.fillRect(0, 0, 9999, 9999);
}
g.translate(format.getImageableX(), format.getImageableY());
// Don't need to clip if printing whole map, as computed zoom
// should have made sure everything is within page size
// if (!isPrintingView())
// g.clipRect(0, 0, page.width, page.height);
if (DEBUG.CONTAINMENT) {
// g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));
// draw border outline of page
g.setColor(Color.gray);
g.setStroke(VueConstants.STROKE_TWO);
g.drawRect(0, 0, page.width, page.height);
// g.setComposite(AlphaComposite.Src);
}
// compute zoom & offset for visible map components
Point2D.Float offset = new Point2D.Float();
// center vertically only if landscape mode
// if (format.getOrientation() == PageFormat.LANDSCAPE)
// TODO: allow horizontal centering, but not vertical centering (handle in computeZoomFit)
double scale = ZoomTool.computeZoomFit(page, 5, bounds, offset, true);
out("rendering at scale " + scale);
// set up the DrawContext
DrawContext dc =
new DrawContext(
g, scale, -offset.x, -offset.y,
null, // frame would be the PageFormat offset & size rectangle
focal, false); // todo: absolute links shouldn't be spec'd here
dc.setMapDrawing();
dc.setPrintQuality();
if (isPrintingView() && map == focal)
g.clipRect(
(int) Math.floor(bounds.getX()),
(int) Math.floor(bounds.getY()),
(int) Math.ceil(bounds.getWidth()),
(int) Math.ceil(bounds.getHeight()));
if (DEBUG.CONTAINMENT) {
g.setColor(Color.red);
g.setStroke(VueConstants.STROKE_TWO);
g.draw(bounds);
}
// render the map
if (map == focal) map.draw(dc);
else focal.draw(dc);
out("page " + pageIndex + " rendered.");
return Printable.PAGE_EXISTS;
}
