Hello again!
Appearently my included "patches" in my previous mail on this thread were malformed
by my mailclient. So, I saved them to files and ancluded them as attachments
instead. Note, it's still "context patches", I don't attach the entire modified
files.
Sorry for any inconvenience.
Best regards
/IlvJa
/**
* To print the current document.
*/
public class PrintAction extends AbstractAction {
public PrintAction() {}
public void actionPerformed(ActionEvent e) {
if (svgDocument != null) {
final SVGDocument doc = svgDocument;
new Thread() {
public void run(){
String uri = doc.getURL();
String fragment = svgCanvas.getFragmentIdentifier();
if (fragment != null) {
uri += "#"+fragment;
}
//
// Build a PrintTranscoder to handle printing
// of the svgDocument object
//
PrintTranscoder pt = new PrintTranscoder();
//
// Set transcoding hints
//
pt.addTranscodingHint(pt.KEY_XML_PARSER_CLASSNAME,
application.getXMLParserClassName());
pt.addTranscodingHint(pt.KEY_SHOW_PAGE_DIALOG,
Boolean.TRUE);
pt.addTranscodingHint(pt.KEY_SHOW_PRINTER_DIALOG,
Boolean.TRUE);
//
// Jakob Ilves hardcoded (and therefore ugly) hack.
//
// As I want to print UNSCALED graphics I want the
// transcoder hint KEY_SCALE_TO_PAGE to be set to
// false. How to best do that I have to discuss with
// people who develop batik.
//
// Also, it appears that the graphics on screen is
// assumed to be 96dpi while the printer is assumed
// to be 72dpi and somewhere a mistake occurs so the
// printed graphics becomes 4/3 times larger than
// wanted. So, I also (ab-)use the deprecated
// KEY_PIXEL_TO_MM to adjust things.
//
pt.addTranscodingHint(pt.KEY_SCALE_TO_PAGE,
Boolean.FALSE);
pt.addTranscodingHint(pt.KEY_PIXEL_UNIT_TO_MILLIMETER,
new Float(0.1984375));
pt.addTranscodingHint(pt.KEY_PIXEL_TO_MM,
new Float(0.1984375));
//
// Do transcoding now
//
pt.transcode(new TranscoderInput(uri), null);
//
// Print
//
try {
pt.print();
} catch (PrinterException ex) {
userAgent.displayError(ex);
}
}
}.start();
}
}
}
/**
* Printable implementation
*/
public int print(Graphics _g, PageFormat pageFormat, int pageIndex){
//
// On the first page, take a snapshot of the vector of
// TranscodeInputs.
//
if(pageIndex == 0){
printedInputs = (Vector)inputs.clone();
}
//
// If we have already printed each page, return
//
if(pageIndex >= printedInputs.size()){
curIndex = -1;
System.out.println("Done");
return NO_SUCH_PAGE;
}
//
// Load a new document now if we are printing a new page
//
if(curIndex != pageIndex){
// The following call will invoke this class' transcode
// method which takes a document as an input. That method
// builds the GVT root tree.{
try{
super.transcode((TranscoderInput)printedInputs.elementAt(pageIndex),
null);
curIndex = pageIndex;
}catch(TranscoderException e){
drawError(_g, e);
return PAGE_EXISTS;
}
}
// Cast to Graphics2D to access Java 2D features
Graphics2D g = (Graphics2D)_g;
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.setRenderingHint(RenderingHintsKeyExt.KEY_TRANSCODING,
RenderingHintsKeyExt.VALUE_TRANSCODING_PRINTING);
//
// Compute transform so that the SVG document fits on one page
//
AffineTransform t = g.getTransform();
Shape clip = g.getClip();
Rectangle2D bounds = curAOI;
double scaleX = pageFormat.getImageableWidth() / bounds.getWidth();
double scaleY = pageFormat.getImageableHeight() / bounds.getHeight();
double scale = scaleX < scaleY ? scaleX : scaleY;
// Check hint to know if scaling is really needed
Boolean scaleToPage = (Boolean)hints.get(KEY_SCALE_TO_PAGE);
if(scaleToPage != null && !scaleToPage.booleanValue()){
//
// Jakob Ilves ugly addition:
// If KEY_SCALE_TO_PAGE is set to FALSE but still
// KEY_PIXEL_UNIT_TO_MILLIMETER or the deprecated
// KEY_PIXEL_TO_MM is set honor that value. Note, the default
// appears to be 72dpi (for some reason), so if you set to
// the value to 0.264583333... (72dpi), the scale should be 1.
// If you set it to 0.1984375 (96dpi) the scaling becomes 0.75.
//
// This hack should be brought up with the Batik developers.
//
Float px2mm;
px2mm = (Float)hints.get(KEY_PIXEL_UNIT_TO_MILLIMETER);
if(px2mm == null)
{
px2mm = (Float)hints.get(KEY_PIXEL_TO_MM);
}
if(px2mm != null)
{
scale = px2mm.floatValue()/0.2645833333333333333333333333333f;
}
else
{
scale = 1;
}
}
double xMargin = (pageFormat.getImageableWidth() - bounds.getWidth()*scale)/2;
double yMargin = (pageFormat.getImageableHeight() -
bounds.getHeight()*scale)/2;
g.translate(pageFormat.getImageableX() + xMargin,
pageFormat.getImageableY() + yMargin);
g.scale(scale, scale);
//
// Append transform to selected area
//
g.transform(curTxf);
g.clip(curAOI);
//
// Delegate rendering to painter
//
try{
root.paint(g);
}catch(Exception e){
g.setTransform(t);
g.setClip(clip);
drawError(_g, e);
}
//
// Restore transform and clip
//
g.setTransform(t);
g.setClip(clip);
// g.setPaint(Color.black);
// g.drawString(uris[pageIndex], 30, 30);
//
// Return status indicated that we did paint a page
//
return PAGE_EXISTS;
}
begin:vcard
n:;Jakob
x-mozilla-html:FALSE
adr:;;;;;;
version:2.1
email;internet:[EMAIL PROTECTED]
fn:Jakob Ilves
end:vcard
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