public void parse(File file, int maxPaths, ProgressMonitor monitor) throws Exception {
monitor.beginTask(tr("Parsing PDF", 1));
PDDocument document = PDDocument.load(file);
if (document.isEncrypted()) {
throw new Exception(tr("Encrypted documents not supported."));
}
List<?> allPages = document.getDocumentCatalog().getAllPages();
if (allPages.size() != 1) {
throw new Exception(tr("The PDF file must have exactly one page."));
}
PDPage page = (PDPage) allPages.get(0);
PDRectangle pageSize = page.findMediaBox();
Integer rotationVal = page.getRotation();
int rotation = 0;
if (rotationVal != null) {
rotation = rotationVal.intValue();
}
GraphicsProcessor p = new GraphicsProcessor(target, rotation, maxPaths, monitor);
PageDrawer drawer = new PageDrawer();
drawer.drawPage(p, page);
this.target.bounds =
new Rectangle2D.Double(
pageSize.getLowerLeftX(),
pageSize.getLowerLeftY(),
pageSize.getWidth(),
pageSize.getHeight());
monitor.finishTask();
}
// renders a page to the given graphics
public void renderPage(
PDPage page, Paint paint, Canvas canvas, int width, int height, float scaleX, float scaleY)
throws IOException {
canvas.scale(scaleX, scaleY);
// TODO should we be passing the scale to PageDrawer rather than messing with Graphics?
PDRectangle cropBox = page.getCropBox();
int rotationAngle = page.getRotation();
if (rotationAngle != 0) {
float translateX = 0;
float translateY = 0;
switch (rotationAngle) {
case 90:
translateX = cropBox.getHeight();
break;
case 270:
translateY = cropBox.getWidth();
break;
case 180:
translateX = cropBox.getWidth();
translateY = cropBox.getHeight();
break;
}
canvas.translate(translateX, translateY);
canvas.rotate((float) Math.toRadians(rotationAngle));
}
PageDrawer drawer = new PageDrawer(page);
drawer.drawPage(paint, canvas, cropBox);
}
// renders a page to the given graphics
private void renderPage(
PDPage page, Graphics2D graphics, int width, int height, float scaleX, float scaleY)
throws IOException {
graphics.clearRect(0, 0, width, height);
graphics.scale(scaleX, scaleY);
// TODO should we be passing the scale to PageDrawer rather than messing with Graphics?
PDRectangle cropBox = page.getCropBox();
int rotationAngle = page.getRotation();
if (rotationAngle != 0) {
float translateX = 0;
float translateY = 0;
switch (rotationAngle) {
case 90:
translateX = cropBox.getHeight();
break;
case 270:
translateY = cropBox.getWidth();
break;
case 180:
translateX = cropBox.getWidth();
translateY = cropBox.getHeight();
break;
}
graphics.translate(translateX, translateY);
graphics.rotate((float) Math.toRadians(rotationAngle));
}
// the end-user may provide a custom PageDrawer
PageDrawerParameters parameters = new PageDrawerParameters(this, page);
PageDrawer drawer = createPageDrawer(parameters);
drawer.drawPage(graphics, cropBox);
}
