/*
* {{{ header & license
* Copyright (c) 2006 Wisconsin Court System
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.pdf;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.RenderingHints.Key;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.PathIterator;
import java.awt.geom.Point2D;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import java.util.regex.Pattern;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xhtmlrenderer.css.parser.FSCMYKColor;
import org.xhtmlrenderer.css.parser.FSColor;
import org.xhtmlrenderer.css.parser.FSRGBColor;
import org.xhtmlrenderer.css.style.CalculatedStyle;
import org.xhtmlrenderer.css.style.CssContext;
import org.xhtmlrenderer.extend.FSImage;
import org.xhtmlrenderer.extend.NamespaceHandler;
import org.xhtmlrenderer.extend.OutputDevice;
import org.xhtmlrenderer.layout.SharedContext;
import org.xhtmlrenderer.render.AbstractOutputDevice;
import org.xhtmlrenderer.render.BlockBox;
import org.xhtmlrenderer.render.BorderPainter;
import org.xhtmlrenderer.render.Box;
import org.xhtmlrenderer.render.FSFont;
import org.xhtmlrenderer.render.InlineLayoutBox;
import org.xhtmlrenderer.render.InlineText;
import org.xhtmlrenderer.render.JustificationInfo;
import org.xhtmlrenderer.render.PageBox;
import org.xhtmlrenderer.render.RenderingContext;
import org.xhtmlrenderer.util.XRRuntimeException;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Image;
import com.lowagie.text.pdf.CMYKColor;
import com.lowagie.text.pdf.PdfAction;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfBorderDictionary;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfDestination;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfOutline;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfTextArray;
import com.lowagie.text.pdf.PdfWriter;
/**
* This class is largely based on {@link com.lowagie.text.pdf.PdfGraphics2D}. See
* <a href="http://sourceforge.net/projects/itext/">http://sourceforge.net/projects/itext/</a> for license information.
*/
public class ITextOutputDevice extends AbstractOutputDevice implements OutputDevice {
private static final int FILL = 1;
private static final int STROKE = 2;
private static final int CLIP = 3;
private static AffineTransform IDENTITY = new AffineTransform();
private static final BasicStroke STROKE_ONE = new BasicStroke(1);
private PdfContentByte _currentPage;
private float _pageHeight;
private ITextFSFont _font;
private AffineTransform _transform = new AffineTransform();
private Color _color = Color.BLACK;
private Color _fillColor;
private Color _strokeColor;
private Stroke _stroke = null;
private Stroke _originalStroke = null;
private Stroke _oldStroke = null;
private Area _clip;
private SharedContext _sharedContext;
private float _dotsPerPoint;
private PdfWriter _writer;
private Map _readerCache = new HashMap();
private PdfDestination _defaultDestination;
private List _bookmarks = new ArrayList();
private Box _root;
private int _startPageNo;
private int _nextFormFieldIndex;
private Set _linkTargetAreas;
public ITextOutputDevice(float dotsPerPoint) {
_dotsPerPoint = dotsPerPoint;
}
public void setWriter(PdfWriter writer) {
_writer = writer;
}
public PdfWriter getWriter() {
return _writer;
}
public int getNextFormFieldIndex() {
return ++_nextFormFieldIndex;
}
public void initializePage(PdfContentByte currentPage, float height) {
_currentPage = currentPage;
_pageHeight = height;
_currentPage.saveState();
_transform = new AffineTransform();
_transform.scale(1.0d / _dotsPerPoint, 1.0d / _dotsPerPoint);
_stroke = transformStroke(STROKE_ONE);
_originalStroke = _stroke;
_oldStroke = _stroke;
setStrokeDiff(_stroke, null);
if (_defaultDestination == null) {
_defaultDestination = new PdfDestination(PdfDestination.FITH, height);
_defaultDestination.addPage(_writer.getPageReference(1));
}
_linkTargetAreas = new HashSet();
}
public void finishPage() {
_currentPage.restoreState();
}
public void paintReplacedElement(RenderingContext c, BlockBox box) {
ITextReplacedElement element = (ITextReplacedElement)box.getReplacedElement();
element.paint(c, this, box);
}
public void paintBackground(RenderingContext c, Box box) {
super.paintBackground(c, box);
processLink(c, box);
}
private com.lowagie.text.Rectangle calcTotalLinkArea(RenderingContext c, Box box) {
Box current = box;
while (true) {
Box prev = current.getPreviousSibling();
if (prev == null || prev.getElement() != box.getElement()) {
break;
}
current = prev;
}
com.lowagie.text.Rectangle result = createLocalTargetArea(c, current, true);
current = current.getNextSibling();
while (current != null && current.getElement() == box.getElement()) {
result = add(result, createLocalTargetArea(c, current, true));
current = current.getNextSibling();
}
return result;
}
private com.lowagie.text.Rectangle add(com.lowagie.text.Rectangle r1, com.lowagie.text.Rectangle r2) {
float llx = Math.min(r1.getLeft(), r2.getLeft());
float urx = Math.max(r1.getRight(), r2.getRight());
float lly = Math.min(r1.getBottom(), r2.getBottom());
float ury = Math.max(r1.getTop(), r2.getTop());
return new com.lowagie.text.Rectangle(llx, lly, urx, ury);
}
private String createRectKey(com.lowagie.text.Rectangle rect) {
return rect.getLeft() + ":" + rect.getBottom() + ":" + rect.getRight() + ":" + rect.getTop();
}
private com.lowagie.text.Rectangle checkLinkArea(RenderingContext c, Box box) {
com.lowagie.text.Rectangle targetArea = calcTotalLinkArea(c, box);
String key = createRectKey(targetArea);
if (_linkTargetAreas.contains(key)) {
return null;
}
_linkTargetAreas.add(key);
return targetArea;
}
private void processLink(RenderingContext c, Box box) {
Element elem = box.getElement();
if (elem != null) {
NamespaceHandler handler = _sharedContext.getNamespaceHandler();
String uri = handler.getLinkUri(elem);
if (uri != null) {
if (uri.length() > 1 && uri.charAt(0) == '#') {
String anchor = uri.substring(1);
Box target = _sharedContext.getBoxById(anchor);
if (target != null) {
PdfDestination dest = createDestination(c, target);
PdfAction action = new PdfAction();
if (!"".equals(handler.getAttributeValue(elem, "onclick"))) {
action = PdfAction.javaScript(handler.getAttributeValue(elem, "onclick"), _writer);
} else {
action.put(PdfName.S, PdfName.GOTO);
action.put(PdfName.D, dest);
}
com.lowagie.text.Rectangle targetArea = checkLinkArea(c, box);
if (targetArea == null) {
return;
}
PdfAnnotation annot = PdfAnnotation.createLink(
_writer, targetArea, PdfAnnotation.HIGHLIGHT_INVERT, action);
annot.setBorderStyle(new PdfBorderDictionary(0.0f, 0));
_writer.addAnnotation(annot);
}
} else if (uri.indexOf("://") != -1) {
PdfAction action = new PdfAction(uri);
com.lowagie.text.Rectangle targetArea = checkLinkArea(c, box);
if (targetArea == null) {
return;
}
PdfAnnotation annot = PdfAnnotation.createLink(
_writer, targetArea, PdfAnnotation.HIGHLIGHT_INVERT, action);
annot.setBorderStyle(new PdfBorderDictionary(0.0f, 0));
_writer.addAnnotation(annot);
}
}
}
}
public com.lowagie.text.Rectangle createLocalTargetArea(RenderingContext c, Box box) {
return createLocalTargetArea(c, box, false);
}
private com.lowagie.text.Rectangle createLocalTargetArea(RenderingContext c, Box box, boolean useAggregateBounds) {
Rectangle bounds;
if (useAggregateBounds && box.getPaintingInfo() != null) {
bounds = box.getPaintingInfo().getAggregateBounds();
} else {
bounds = box.getContentAreaEdge(box.getAbsX(), box.getAbsY(), c);
}
Point2D docCorner = new Point2D.Double(bounds.x, bounds.y + bounds.height);
Point2D pdfCorner = new Point.Double();
_transform.transform(docCorner, pdfCorner);
pdfCorner.setLocation(pdfCorner.getX(), normalizeY((float) pdfCorner.getY()));
com.lowagie.text.Rectangle result = new com.lowagie.text.Rectangle(
(float) pdfCorner.getX(), (float) pdfCorner.getY(),
(float) pdfCorner.getX() + getDeviceLength(bounds.width),
(float) pdfCorner.getY() + getDeviceLength(bounds.height));
return result;
}
public com.lowagie.text.Rectangle createTargetArea(RenderingContext c, Box box) {
PageBox current = c.getPage();
boolean inCurrentPage = box.getAbsY() > current.getTop() && box.getAbsY() < current.getBottom();
if (inCurrentPage || box.isContainedInMarginBox()) {
return createLocalTargetArea(c, box);
} else {
Rectangle bounds = box.getContentAreaEdge(box.getAbsX(), box.getAbsY(), c);
PageBox page = _root.getLayer().getPage(c, bounds.y);
float bottom = getDeviceLength(page.getBottom() - (bounds.y + bounds.height) +
page.getMarginBorderPadding(c, CalculatedStyle.BOTTOM));
float left = getDeviceLength(page.getMarginBorderPadding(c, CalculatedStyle.LEFT) + bounds.x);
com.lowagie.text.Rectangle result =
new com.lowagie.text.Rectangle(
left,
bottom,
left + getDeviceLength(bounds.width),
bottom + getDeviceLength(bounds.height));
return result;
}
}
public float getDeviceLength(float length) {
return length / _dotsPerPoint;
}
private PdfDestination createDestination(RenderingContext c, Box box) {
PdfDestination result;
PageBox page = _root.getLayer().getPage(c, getPageRefY(box));
int distanceFromTop =
page.getMarginBorderPadding(c, CalculatedStyle.TOP);
distanceFromTop += box.getAbsY() + box.getMargin(c).top() - page.getTop();
result = new PdfDestination(
PdfDestination.XYZ,
0,
page.getHeight(c) / _dotsPerPoint - distanceFromTop / _dotsPerPoint,
0);
result.addPage(_writer.getPageReference(_startPageNo + page.getPageNo()+1));
return result;
}
public void drawBorderLine(
Rectangle bounds, int side, int lineWidth, boolean solid) {
float x = bounds.x;
float y = bounds.y;
float w = bounds.width;
float h = bounds.height;
float adj = solid ? (float)lineWidth / 2 : 0;
float adj2 = lineWidth % 2 == 1 ? 0.5f : 0f;
Line2D.Float line = null;
if (side == BorderPainter.TOP) {
line = new Line2D.Float(
x + adj, y + lineWidth / 2 + adj2, x + w - adj, y + lineWidth / 2 + adj2);
} else if (side == BorderPainter.LEFT) {
line = new Line2D.Float(
x + lineWidth / 2 + adj2, y + adj,
x + lineWidth / 2 + adj2, y + h - adj);
} else if (side == BorderPainter.RIGHT) {
float offset = lineWidth / 2;
if (lineWidth % 2 == 1) {
offset += 1;
}
line = new Line2D.Float(
x + w - offset + adj2, y + adj,
x + w - offset + adj2, y + h - adj);
} else if (side == BorderPainter.BOTTOM) {
float offset = lineWidth / 2;
if (lineWidth % 2 == 1) {
offset += 1;
}
line = new Line2D.Float(x + adj, y + h - offset + adj2, x + w - adj, y + h - offset + adj2);
}
draw(line);
}
public void setColor(FSColor color) {
if (color instanceof FSRGBColor) {
FSRGBColor rgb = (FSRGBColor)color;
_color = new Color(rgb.getRed(), rgb.getGreen(), rgb.getBlue());
} else if (color instanceof FSCMYKColor) {
FSCMYKColor cmyk = (FSCMYKColor)color;
_color = new CMYKColor(cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack());
} else {
throw new RuntimeException("internal error: unsupported color class " + color.getClass().getName());
}
}
private void draw(Shape s) {
followPath(s, STROKE);
}
protected void drawLine(int x1, int y1, int x2, int y2) {
Line2D line = new Line2D.Double((double)x1, (double)y1, (double)x2, (double)y2);
draw(line);
}
public void drawRect(int x, int y, int width, int height) {
draw(new Rectangle(x, y, width, height));
}
public void drawOval(int x, int y, int width, int height) {
Ellipse2D oval = new Ellipse2D.Float((float)x, (float)y, (float)width, (float)height);
draw(oval);
}
public void fill(Shape s) {
followPath(s, FILL);
}
public void fillRect(int x, int y, int width, int height) {
fill(new Rectangle(x,y,width,height));
}
public void fillOval(int x, int y, int width, int height) {
Ellipse2D oval = new Ellipse2D.Float((float)x, (float)y, (float)width, (float)height);
fill(oval);
}
public void translate(double tx, double ty) {
_transform.translate(tx, ty);
}
public Object getRenderingHint(Key key) {
return null;
}
public void setRenderingHint(Key key, Object value) {
}
public void setFont(FSFont font) {
_font = ((ITextFSFont)font);
}
private AffineTransform normalizeMatrix(AffineTransform current) {
double[] mx = new double[6];
AffineTransform result = new AffineTransform();
result.getMatrix(mx);
mx[3] = -1;
mx[5] = _pageHeight;
result = new AffineTransform(mx);
result.concatenate(current);
return result;
}
public void drawString(String s, float x, float y, JustificationInfo info) {
if (s.length() == 0)
return;
PdfContentByte cb = _currentPage;
ensureFillColor();
AffineTransform at = (AffineTransform)getTransform().clone();
at.translate(x, y);
AffineTransform inverse = normalizeMatrix(at);
AffineTransform flipper = AffineTransform.getScaleInstance(1, -1);
inverse.concatenate(flipper);
inverse.scale(_dotsPerPoint, _dotsPerPoint);
double[] mx = new double[6];
inverse.getMatrix(mx);
cb.beginText();
cb.setFontAndSize(_font.getFontDescription().getFont(), _font.getSize2D() / _dotsPerPoint);
cb.setTextMatrix((float)mx[0], (float)mx[1], (float)mx[2], (float)mx[3], (float)mx[4], (float)mx[5]);
if (info == null) {
cb.showText(s);
} else {
PdfTextArray array = makeJustificationArray(s, info);
cb.showText(array);
}
cb.endText();
}
private PdfTextArray makeJustificationArray(String s, JustificationInfo info) {
PdfTextArray array = new PdfTextArray();
int len = s.length();
for (int i = 0; i < len; i++) {
char c = s.charAt(i);
array.add(Character.toString(c));
if (i != len - 1) {
float offset;
if (c == ' ' || c == '\u00a0' || c == '\u3000') {
offset = info.getSpaceAdjust();
} else {
offset = info.getNonSpaceAdjust();
}
array.add((-offset / _dotsPerPoint) * 1000 /
(_font.getSize2D() / _dotsPerPoint));
}
}
return array;
}
private AffineTransform getTransform() {
return _transform;
}
private void ensureFillColor() {
if (! (_color.equals(_fillColor))) {
_fillColor = _color;
_currentPage.setColorFill(_fillColor);
}
}
private void ensureStrokeColor() {
if (! (_color.equals(_strokeColor))) {
_strokeColor = _color;
_currentPage.setColorStroke(_strokeColor);
}
}
public PdfContentByte getCurrentPage() {
return _currentPage;
}
private void followPath(Shape s, int drawType) {
PdfContentByte cb = _currentPage;
if (s==null) return;
if (drawType==STROKE) {
if (!(_stroke instanceof BasicStroke)) {
s = _stroke.createStrokedShape(s);
followPath(s, FILL);
return;
}
}
if (drawType==STROKE) {
setStrokeDiff(_stroke, _oldStroke);
_oldStroke = _stroke;
ensureStrokeColor();
} else if (drawType==FILL) {
ensureFillColor();
}
PathIterator points;
if (drawType == CLIP) {
points = s.getPathIterator(IDENTITY);
} else {
points = s.getPathIterator(_transform);
}
float[] coords = new float[6];
int traces = 0;
while(!points.isDone()) {
++traces;
int segtype = points.currentSegment(coords);
normalizeY(coords);
switch(segtype) {
case PathIterator.SEG_CLOSE:
cb.closePath();
break;
case PathIterator.SEG_CUBICTO:
cb.curveTo(coords[0], coords[1], coords[2], coords[3], coords[4], coords[5]);
break;
case PathIterator.SEG_LINETO:
cb.lineTo(coords[0], coords[1]);
break;
case PathIterator.SEG_MOVETO:
cb.moveTo(coords[0], coords[1]);
break;
case PathIterator.SEG_QUADTO:
cb.curveTo(coords[0], coords[1], coords[2], coords[3]);
break;
}
points.next();
}
switch (drawType) {
case FILL:
if (traces > 0) {
if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD)
cb.eoFill();
else
cb.fill();
}
break;
case STROKE:
if (traces > 0)
cb.stroke();
break;
default: //drawType==CLIP
if (traces == 0)
cb.rectangle(0, 0, 0, 0);
if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD)
cb.eoClip();
else
cb.clip();
cb.newPath();
}
}
private float normalizeY(float y) {
return _pageHeight - y;
}
private void normalizeY(float[] coords) {
coords[1] = normalizeY(coords[1]);
coords[3] = normalizeY(coords[3]);
coords[5] = normalizeY(coords[5]);
}
private void setStrokeDiff(Stroke newStroke, Stroke oldStroke) {
PdfContentByte cb = _currentPage;
if (newStroke == oldStroke)
return;
if (!(newStroke instanceof BasicStroke))
return;
BasicStroke nStroke = (BasicStroke)newStroke;
boolean oldOk = (oldStroke instanceof BasicStroke);
BasicStroke oStroke = null;
if (oldOk)
oStroke = (BasicStroke)oldStroke;
if (!oldOk || nStroke.getLineWidth() != oStroke.getLineWidth())
cb.setLineWidth(nStroke.getLineWidth());
if (!oldOk || nStroke.getEndCap() != oStroke.getEndCap()) {
switch (nStroke.getEndCap()) {
case BasicStroke.CAP_BUTT:
cb.setLineCap(0);
break;
case BasicStroke.CAP_SQUARE:
cb.setLineCap(2);
break;
default:
cb.setLineCap(1);
}
}
if (!oldOk || nStroke.getLineJoin() != oStroke.getLineJoin()) {
switch (nStroke.getLineJoin()) {
case BasicStroke.JOIN_MITER:
cb.setLineJoin(0);
break;
case BasicStroke.JOIN_BEVEL:
cb.setLineJoin(2);
break;
default:
cb.setLineJoin(1);
}
}
if (!oldOk || nStroke.getMiterLimit() != oStroke.getMiterLimit())
cb.setMiterLimit(nStroke.getMiterLimit());
boolean makeDash;
if (oldOk) {
if (nStroke.getDashArray() != null) {
if (nStroke.getDashPhase() != oStroke.getDashPhase()) {
makeDash = true;
}
else if (!java.util.Arrays.equals(nStroke.getDashArray(), oStroke.getDashArray())) {
makeDash = true;
}
else
makeDash = false;
}
else if (oStroke.getDashArray() != null) {
makeDash = true;
}
else
makeDash = false;
}
else {
makeDash = true;
}
if (makeDash) {
float dash[] = nStroke.getDashArray();
if (dash == null)
cb.setLiteral("[]0 d\n");
else {
cb.setLiteral('[');
int lim = dash.length;
for (int k = 0; k < lim; ++k) {
cb.setLiteral(dash[k]);
cb.setLiteral(' ');
}
cb.setLiteral(']');
cb.setLiteral(nStroke.getDashPhase());
cb.setLiteral(" d\n");
}
}
}
public void setStroke(Stroke s) {
_originalStroke = s;
this._stroke = transformStroke(s);
}
private Stroke transformStroke(Stroke stroke) {
if (!(stroke instanceof BasicStroke))
return stroke;
BasicStroke st = (BasicStroke)stroke;
float scale = (float)Math.sqrt(Math.abs(_transform.getDeterminant()));
float dash[] = st.getDashArray();
if (dash != null) {
for (int k = 0; k < dash.length; ++k)
dash[k] *= scale;
}
return new BasicStroke(st.getLineWidth() * scale, st.getEndCap(), st.getLineJoin(), st.getMiterLimit(), dash, st.getDashPhase() * scale);
}
public void clip(Shape s) {
if (s != null)
s = _transform.createTransformedShape(s);
if (_clip == null)
_clip = new Area(s);
else
_clip.intersect(new Area(s));
followPath(s, CLIP);
}
public Shape getClip() {
try {
return _transform.createInverse().createTransformedShape(_clip);
}
catch (NoninvertibleTransformException e) {
return null;
}
}
public void setClip(Shape s) {
PdfContentByte cb = _currentPage;
cb.restoreState();
cb.saveState();
if (s != null)
s = _transform.createTransformedShape(s);
if (s == null) {
_clip = null;
}
else {
_clip = new Area(s);
followPath(s, CLIP);
}
_fillColor = null;
_strokeColor = null;
_oldStroke = null;
}
public Stroke getStroke() {
return _originalStroke;
}
public void drawImage(FSImage fsImage, int x, int y) {
if (fsImage instanceof PDFAsImage) {
drawPDFAsImage((PDFAsImage)fsImage, x, y);
} else {
Image image = ((ITextFSImage)fsImage).getImage();
if (fsImage.getHeight() <= 0 || fsImage.getWidth() <= 0) {
return;
}
AffineTransform at = AffineTransform.getTranslateInstance(x,y);
at.translate(0, fsImage.getHeight());
at.scale(fsImage.getWidth(), fsImage.getHeight());
AffineTransform inverse = normalizeMatrix(_transform);
AffineTransform flipper = AffineTransform.getScaleInstance(1,-1);
inverse.concatenate(at);
inverse.concatenate(flipper);
double[] mx = new double[6];
inverse.getMatrix(mx);
try {
_currentPage.addImage(image,
(float)mx[0], (float)mx[1], (float)mx[2],
(float)mx[3], (float)mx[4], (float)mx[5]);
} catch (DocumentException e) {
throw new XRRuntimeException(e.getMessage(), e);
}
}
}
private void drawPDFAsImage(PDFAsImage image, int x, int y) {
URL url = image.getURL();
PdfReader reader = null;
try {
reader = getReader(url);
} catch (IOException e) {
throw new XRRuntimeException("Could not load " + url + ": " +
e.getMessage(), e);
}
PdfImportedPage page = getWriter().getImportedPage(reader, 1);
AffineTransform at = AffineTransform.getTranslateInstance(x,y);
at.translate(0, image.getHeightAsFloat());
at.scale(image.getWidthAsFloat(), image.getHeightAsFloat());
AffineTransform inverse = normalizeMatrix(_transform);
AffineTransform flipper = AffineTransform.getScaleInstance(1,-1);
inverse.concatenate(at);
inverse.concatenate(flipper);
double[] mx = new double[6];
inverse.getMatrix(mx);
mx[0] = image.scaleWidth();
mx[3] = image.scaleHeight();
_currentPage.restoreState();
_currentPage.addTemplate(page,
(float)mx[0], (float)mx[1], (float)mx[2],
(float)mx[3], (float)mx[4], (float)mx[5]);
_currentPage.saveState();
}
public PdfReader getReader(URL url) throws IOException {
PdfReader result = (PdfReader) _readerCache.get(url);
if (result == null) {
result = new PdfReader(url);
_readerCache.put(url, result);
}
return result;
}
public float getDotsPerPoint() {
return _dotsPerPoint;
}
public void start(Document doc) {
loadBookmarks(doc);
}
public void finish(RenderingContext c, Box root) {
writeOutline(c, root);
}
private void writeOutline(RenderingContext c, Box root) {
if (_bookmarks.size() > 0) {
_writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
writeBookmarks(c, root, _writer.getRootOutline(), _bookmarks);
}
}
private void writeBookmarks(RenderingContext c,
Box root, PdfOutline parent, List bookmarks) {
for (Iterator i = bookmarks.iterator(); i.hasNext(); ) {
Bookmark bookmark = (Bookmark)i.next();
writeBookmark(c, root, parent, bookmark);
}
}
private int getPageRefY(Box box) {
if (box instanceof InlineLayoutBox) {
InlineLayoutBox iB = (InlineLayoutBox)box;
return iB.getAbsY() + iB.getBaseline();
} else {
return box.getAbsY();
}
}
private void writeBookmark(RenderingContext c, Box root, PdfOutline parent, Bookmark bookmark) {
String href = bookmark.getHRef();
PdfDestination target = null;
if (href.length() > 0 && href.charAt(0) == '#') {
Box box = _sharedContext.getBoxById(href.substring(1));
if (box != null) {
PageBox page = root.getLayer().getPage(c, getPageRefY(box));
int distanceFromTop =
page.getMarginBorderPadding(c, CalculatedStyle.TOP);
distanceFromTop += box.getAbsY() - page.getTop();
target = new PdfDestination(PdfDestination.XYZ,
0, normalizeY(distanceFromTop / _dotsPerPoint), 0);
target.addPage(_writer.getPageReference(_startPageNo + page.getPageNo()+1));
}
}
if (target == null) {
target = _defaultDestination;
}
PdfOutline outline = new PdfOutline(parent, target, bookmark.getName());
writeBookmarks(c, root, outline, bookmark.getChildren());
}
private void loadBookmarks(Document doc) {
Element head = DOMUtil.getChild(doc.getDocumentElement(), "head");
if (head != null) {
Element bookmarks = DOMUtil.getChild(head, "bookmarks");
if (bookmarks != null) {
List l = DOMUtil.getChildren(bookmarks, "bookmark");
if (l != null) {
for (Iterator i = l.iterator(); i.hasNext(); ) {
Element e = (Element)i.next();
loadBookmark(null, e);
}
}
}
}
}
private void loadBookmark(Bookmark parent, Element bookmark) {
Bookmark us = new Bookmark(bookmark.getAttribute("name"),
bookmark.getAttribute("href"));
if (parent == null) {
_bookmarks.add(us);
} else {
parent.addChild(us);
}
List l = DOMUtil.getChildren(bookmark, "bookmark");
if (l != null) {
for (Iterator i = l.iterator(); i.hasNext(); ) {
Element e = (Element)i.next();
loadBookmark(us, e);
}
}
}
private static class Bookmark {
private String _name;
private String _HRef;
private List _children;
public Bookmark() {
}
public Bookmark(String name, String href) {
_name = name;
_HRef = href;
}
public String getHRef() {
return _HRef;
}
public void setHRef(String href) {
_HRef = href;
}
public String getName() {
return _name;
}
public void setName(String name) {
_name = name;
}
public void addChild(Bookmark child) {
if (_children == null) {
_children = new ArrayList();
}
_children.add(child);
}
public List getChildren() {
return _children == null ? Collections.EMPTY_LIST : _children;
}
}
public SharedContext getSharedContext() {
return _sharedContext;
}
public void setSharedContext(SharedContext sharedContext) {
_sharedContext = sharedContext;
sharedContext.getCss().setSupportCMYKColors(true);
}
public void setRoot(Box root) {
_root = root;
}
public int getStartPageNo() {
return _startPageNo;
}
public void setStartPageNo(int startPageNo) {
_startPageNo = startPageNo;
}
public void drawSelection(RenderingContext c, InlineText inlineText) {
throw new UnsupportedOperationException();
}
public boolean isSupportsSelection() {
return false;
}
public boolean isSupportsCMYKColors() {
return true;
}
public List findPagePositionsByID(CssContext c, Pattern pattern)
{
Map idMap = _sharedContext.getIdMap();
if (idMap == null) {
return Collections.EMPTY_LIST;
}
List result = new ArrayList();
for (Iterator i = idMap.entrySet().iterator(); i.hasNext(); )
{
Map.Entry entry = (Entry)i.next();
String id = (String)entry.getKey();
if (pattern.matcher(id).find()) {
Box box = (Box)entry.getValue();
PagePosition pos = calcPDFPagePosition(c, id, box);
if (pos != null) {
result.add(pos);
}
}
}
Collections.sort(result, new Comparator() {
public int compare(Object arg0, Object arg1) {
PagePosition p1 = (PagePosition)arg0;
PagePosition p2 = (PagePosition)arg1;
return p1.getPageNo() - p2.getPageNo();
}
});
return result;
}
private PagePosition calcPDFPagePosition(CssContext c, String id, Box box) {
PageBox page = _root.getLayer().getLastPage(c, box);
if (page == null) {
return null;
}
float x = box.getAbsX() + page.getMarginBorderPadding(c, CalculatedStyle.LEFT);
float y = (page.getBottom() - (box.getAbsY() + box.getHeight())) + page.getMarginBorderPadding(c, CalculatedStyle.BOTTOM);
x /= _dotsPerPoint;
y /= _dotsPerPoint;
PagePosition result = new PagePosition();
result.setId(id);
result.setPageNo(page.getPageNo());
result.setX(x);
result.setY(y);
result.setWidth(box.getEffectiveWidth() / _dotsPerPoint);
result.setHeight(box.getHeight() / _dotsPerPoint);
return result;
}
}