Graphics object that is
* a copy of this Graphics object.
* @return a new graphics context that is a copy of
* this graphics context.
*/
public Graphics create() {
return new PDFGraphics2D(this);
}
/**
* Central handler for IOExceptions for this class.
* @param ioe IOException to handle
*/
protected void handleIOException(IOException ioe) {
//TODO Surely, there's a better way to do this.
ioe.printStackTrace();
}
/**
* This method is used by PDFDocumentGraphics2D to prepare a new page if
* necessary.
*/
protected void preparePainting() {
//nop, used by PDFDocumentGraphics2D
}
/**
* Set the PDF state to use when starting to draw
* into the PDF graphics.
*
* @param state the PDF state
*/
public void setPDFState(PDFState state) {
graphicsState = state;
baseLevel = graphicsState.getStackLevel();
}
/**
* Set the output stream that this PDF document is
* being drawn to. This is so that it can progressively
* use the PDF document to output data such as images.
* This results in a significant saving on memory.
*
* @param os the output stream that is being used for the PDF document
*/
public void setOutputStream(OutputStream os) {
outputStream = os;
}
/**
* Get the string containing all the commands written into this
* Grpahics.
* @return the string containing the PDF markup
*/
public String getString() {
return currentStream.toString();
}
/**
* Get the string buffer from the currentStream, containing all
* the commands written into this Grpahics so far.
* @return the StringBuffer containing the PDF markup
*/
public StringBuffer getBuffer() {
return currentStream.getBuffer();
}
/**
* Set the Grpahics context.
* @param c the graphics context to use
*/
public void setGraphicContext(GraphicContext c) {
gc = c;
setPrivateHints();
}
private void setPrivateHints() {
setRenderingHint(RenderingHintsKeyExt.KEY_AVOID_TILE_PAINTING,
RenderingHintsKeyExt.VALUE_AVOID_TILE_PAINTING_ON);
}
/**
* Set the override font state for drawing text.
* This is used by the PDF text painter so that it can temporarily
* set the font state when a java font cannot be used.
* The next drawString will use this font state.
*
* @param infont the font state to use
*/
public void setOverrideFontState(Font infont) {
ovFontState = infont;
}
/**
* Restore the PDF graphics state to the starting state level.
*/
/* seems not to be used
public void restorePDFState() {
for (int count = graphicsState.getStackLevel(); count > baseLevel; count--) {
currentStream.write("Q\n");
}
graphicsState.restoreLevel(baseLevel);
}*/
private void concatMatrix(double[] matrix) {
currentStream.write(PDFNumber.doubleOut(matrix[0], DEC) + " "
+ PDFNumber.doubleOut(matrix[1], DEC) + " "
+ PDFNumber.doubleOut(matrix[2], DEC) + " "
+ PDFNumber.doubleOut(matrix[3], DEC) + " "
+ PDFNumber.doubleOut(matrix[4], DEC) + " "
+ PDFNumber.doubleOut(matrix[5], DEC) + " cm\n");
}
/**
* This is a pdf specific method used to add a link to the
* pdf document.
*
* @param bounds the bounds of the link in user coordinates
* @param trans the transform of the current drawing position
* @param dest the PDF destination
* @param linkType the type of link, internal or external
*/
public void addLink(Rectangle2D bounds, AffineTransform trans, String dest, int linkType) {
preparePainting();
AffineTransform at = getTransform();
Shape b = at.createTransformedShape(bounds);
b = trans.createTransformedShape(b);
if (b != null) {
Rectangle rect = b.getBounds();
if (linkType != PDFLink.EXTERNAL) {
String pdfdest = "/FitR " + dest;
resourceContext.addAnnotation(
pdfDoc.getFactory().makeLink(rect, pageRef, pdfdest));
} else {
resourceContext.addAnnotation(
pdfDoc.getFactory().makeLink(rect, dest, linkType, 0));
}
}
}
/**
* Add a JPEG image directly to the PDF document.
* This is used by the PDFImageElementBridge to draw a JPEG
* directly into the pdf document rather than converting the image into
* a bitmap and increasing the size.
*
* @param jpeg the jpeg image to draw
* @param x the x position
* @param y the y position
* @param width the width to draw the image
* @param height the height to draw the image
*/
public void addJpegImage(JpegImage jpeg, float x, float y,
float width, float height) {
preparePainting();
// Need to include hash code as when invoked from FO you
// may have several 'independent' PDFGraphics2D so the
// count is not enough.
String key = "__AddJPEG_" + hashCode() + "_" + jpegCount[0];
jpegCount[0]++;
FopPDFImage fopimage = new FopPDFImage(jpeg, key);
int xObjectNum = this.pdfDoc.addImage(resourceContext,
fopimage).getXNumber();
AffineTransform at = getTransform();
double[] matrix = new double[6];
at.getMatrix(matrix);
currentStream.write("q\n");
if (!at.isIdentity()) {
concatMatrix(matrix);
}
Shape imclip = getClip();
writeClip(imclip);
currentStream.write("" + width + " 0 0 "
+ (-height) + " "
+ x + " "
+ (y + height) + " cm\n" + "/Im"
+ xObjectNum + " Do\nQ\n");
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
}
/**
* Draws as much of the specified image as is currently available.
* The image is drawn with its top-left corner at
* (x, y) in this graphics context's coordinate
* space. Transparent pixels in the image do not affect whatever
* pixels are already there.
* * This method returns immediately in all cases, even if the * complete image has not yet been loaded, and it has not been dithered * and converted for the current output device. *
* If the image has not yet been completely loaded, then
* drawImage returns false. As more of
* the image becomes available, the process that draws the image notifies
* the specified image observer.
* @param img the specified image to be drawn.
* @param x the x coordinate.
* @param y the y coordinate.
* @param observer object to be notified as more of
* the image is converted.
* @return true if the image was drawn
* @see java.awt.Image
* @see java.awt.image.ImageObserver
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
*/
public boolean drawImage(Image img, int x, int y,
ImageObserver observer) {
preparePainting();
int width = img.getWidth(observer);
int height = img.getHeight(observer);
if (width == -1 || height == -1) {
return false;
}
return drawImage(img, x, y, width, height, observer);
}
private BufferedImage buildBufferedImage(Dimension size) {
return new BufferedImage(size.width, size.height,
BufferedImage.TYPE_INT_ARGB);
}
/**
* Draws as much of the specified image as has already been scaled
* to fit inside the specified rectangle.
*
* The image is drawn inside the specified rectangle of this * graphics context's coordinate space, and is scaled if * necessary. Transparent pixels do not affect whatever pixels * are already there. *
* This method returns immediately in all cases, even if the
* entire image has not yet been scaled, dithered, and converted
* for the current output device.
* If the current output representation is not yet complete, then
* drawImage returns false. As more of
* the image becomes available, the process that draws the image notifies
* the image observer by calling its imageUpdate method.
*
* A scaled version of an image will not necessarily be
* available immediately just because an unscaled version of the
* image has been constructed for this output device. Each size of
* the image may be cached separately and generated from the original
* data in a separate image production sequence.
* @param img the specified image to be drawn.
* @param x the x coordinate.
* @param y the y coordinate.
* @param width the width of the rectangle.
* @param height the height of the rectangle.
* @param observer object to be notified as more of
* the image is converted.
* @return true if the image was drawn
* @see java.awt.Image
* @see java.awt.image.ImageObserver
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
*/
public boolean drawImage(Image img, int x, int y, int width, int height,
ImageObserver observer) {
preparePainting();
// first we look to see if we've already added this image to
// the pdf document. If so, we just reuse the reference;
// otherwise we have to build a FopImage and add it to the pdf
// document
PDFXObject imageInfo = pdfDoc.getImage("TempImage:" + img.toString());
if (imageInfo == null) {
// OK, have to build and add a PDF image
Dimension size = new Dimension(width, height);
BufferedImage buf = buildBufferedImage(size);
java.awt.Graphics2D g = buf.createGraphics();
g.setComposite(AlphaComposite.SrcOver);
g.setBackground(new Color(1, 1, 1, 0));
g.setPaint(new Color(1, 1, 1, 0));
g.fillRect(0, 0, width, height);
g.clip(new Rectangle(0, 0, buf.getWidth(), buf.getHeight()));
g.setComposite(gc.getComposite());
if (!g.drawImage(img, 0, 0, buf.getWidth(), buf.getHeight(), observer)) {
return false;
}
g.dispose();
final byte[] result = new byte[buf.getWidth() * buf.getHeight() * 3 /*for RGB*/];
byte[] mask = new byte[buf.getWidth() * buf.getHeight()];
boolean hasMask = false;
//boolean binaryMask = true;
Raster raster = buf.getData();
DataBuffer bd = raster.getDataBuffer();
int count = 0;
int maskpos = 0;
int[] iarray;
int i, j, val, alpha;
switch (bd.getDataType()) {
case DataBuffer.TYPE_INT:
int[][] idata = ((DataBufferInt)bd).getBankData();
for (i = 0; i < idata.length; i++) {
iarray = idata[i];
for (j = 0; j < iarray.length; j++) {
val = iarray[j];
alpha = val >>> 24;
mask[maskpos++] = (byte)(alpha & 0xFF);
if (alpha != 255) {
hasMask = true;
}
result[count++] = (byte)((val >> 16) & 0xFF);
result[count++] = (byte)((val >> 8) & 0xFF);
result[count++] = (byte)((val) & 0xFF);
}
}
break;
default:
// error
break;
}
String ref = null;
if (hasMask) {
// if the mask is binary then we could convert it into a bitmask
BitmapImage fopimg = new BitmapImage("TempImageMask:"
+ img.toString(), buf.getWidth(),
buf.getHeight(), mask, null);
fopimg.setColorSpace(new PDFColorSpace(PDFColorSpace.DEVICE_GRAY));
PDFXObject xobj = pdfDoc.addImage(resourceContext, fopimg);
ref = xobj.referencePDF();
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
} else {
mask = null;
}
BitmapImage fopimg = new BitmapImage("TempImage:"
+ img.toString(), buf.getWidth(),
buf.getHeight(), result, ref);
imageInfo = pdfDoc.addImage(resourceContext, fopimg);
//int xObjectNum = imageInfo.getXNumber();
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
} else {
resourceContext.getPDFResources().addXObject(imageInfo);
}
// now do any transformation required and add the actual image
// placement instance
AffineTransform at = getTransform();
double[] matrix = new double[6];
at.getMatrix(matrix);
currentStream.write("q\n");
if (!at.isIdentity()) {
concatMatrix(matrix);
}
Shape imclip = getClip();
writeClip(imclip);
currentStream.write("" + width + " 0 0 " + (-height) + " " + x
+ " " + (y + height) + " cm\n" + "/Im"
+ imageInfo.getXNumber() + " Do\nQ\n");
return true;
}
/**
* Disposes of this graphics context and releases
* any system resources that it is using.
* A Graphics object cannot be used after
* disposehas been called.
*
* When a Java program runs, a large number of Graphics
* objects can be created within a short time frame.
* Although the finalization process of the garbage collector
* also disposes of the same system resources, it is preferable
* to manually free the associated resources by calling this
* method rather than to rely on a finalization process which
* may not run to completion for a long period of time.
*
* Graphics objects which are provided as arguments to the
* paint and update methods
* of components are automatically released by the system when
* those methods return. For efficiency, programmers should
* call dispose when finished using
* a Graphics object only if it was created
* directly from a component or another Graphics object.
* @see java.awt.Graphics#finalize
* @see java.awt.Component#paint
* @see java.awt.Component#update
* @see java.awt.Component#getGraphics
* @see java.awt.Graphics#create
*/
public void dispose() {
pdfDoc = null;
fontInfo = null;
currentStream = null;
currentFontName = null;
}
/**
* Strokes the outline of a Shape using the settings of the
* current Graphics2D context. The rendering attributes
* applied include the Clip, Transform,
* Paint, Composite and
* Stroke attributes.
* @param s the Shape to be rendered
* @see #setStroke
* @see #setPaint
* @see java.awt.Graphics#setColor
* @see #transform
* @see #setTransform
* @see #clip
* @see #setClip
* @see #setComposite
*/
public void draw(Shape s) {
preparePainting();
//Transparency shortcut
Color c;
c = getColor();
if (c.getAlpha() == 0) {
return;
}
AffineTransform trans = getTransform();
double[] tranvals = new double[6];
trans.getMatrix(tranvals);
Shape imclip = getClip();
boolean newClip = graphicsState.checkClip(imclip);
boolean newTransform = graphicsState.checkTransform(trans)
&& !trans.isIdentity();
if (newClip || newTransform) {
currentStream.write("q\n");
graphicsState.push();
if (newTransform) {
concatMatrix(tranvals);
}
if (newClip) {
writeClip(imclip);
}
}
if (c.getAlpha() != 255) {
Map vals = new java.util.HashMap();
vals.put(PDFGState.GSTATE_ALPHA_STROKE,
new Float(c.getAlpha() / 255f));
PDFGState gstate = pdfDoc.getFactory().makeGState(
vals, graphicsState.getGState());
//gstate.setAlpha(c.getAlpha() / 255f, false);
resourceContext.addGState(gstate);
currentStream.write("/" + gstate.getName() + " gs\n");
}
c = getColor();
if (graphicsState.setColor(c)) {
applyColor(c, false);
}
c = getBackground();
if (graphicsState.setBackColor(c)) {
applyColor(c, true);
}
Paint paint = getPaint();
if (graphicsState.setPaint(paint)) {
if (!applyPaint(paint, false)) {
// Stroke the shape and use it to 'clip'
// the paint contents.
Shape ss = getStroke().createStrokedShape(s);
applyUnknownPaint(paint, ss);
if (newClip || newTransform) {
currentStream.write("Q\n");
graphicsState.pop();
}
return;
}
}
applyStroke(getStroke());
PathIterator iter = s.getPathIterator(IDENTITY_TRANSFORM);
processPathIterator(iter);
doDrawing(false, true, false);
if (newClip || newTransform) {
currentStream.write("Q\n");
graphicsState.pop();
}
}
/*
// in theory we could set the clip using these methods
// it doesn't seem to improve the file sizes much
// and makes everything more complicated
Shape lastClip = null;
public void clip(Shape cl) {
super.clip(cl);
Shape newClip = getClip();
if (newClip == null || lastClip == null
|| !(new Area(newClip).equals(new Area(lastClip)))) {
graphicsState.setClip(newClip);
writeClip(newClip);
}
lastClip = newClip;
}
public void setClip(Shape cl) {
super.setClip(cl);
Shape newClip = getClip();
if (newClip == null || lastClip == null
|| !(new Area(newClip).equals(new Area(lastClip)))) {
for (int count = graphicsState.getStackLevel(); count > baseLevel; count--) {
currentStream.write("Q\n");
}
graphicsState.restoreLevel(baseLevel);
currentStream.write("q\n");
graphicsState.push();
if (newClip != null) {
graphicsState.setClip(newClip);
}
writeClip(newClip);
}
lastClip = newClip;
}
*/
/**
* Set the clipping shape for future PDF drawing in the current graphics state.
* This sets creates and writes a clipping shape that will apply
* to future drawings in the current graphics state.
*
* @param s the clipping shape
*/
protected void writeClip(Shape s) {
if (s == null) {
return;
}
preparePainting();
PathIterator iter = s.getPathIterator(IDENTITY_TRANSFORM);
processPathIterator(iter);
// clip area
currentStream.write("W\n");
currentStream.write("n\n");
}
/**
* Apply the java Color to PDF.
* This converts the java colour to a PDF colour and
* sets it for the next drawing.
*
* @param col the java colour
* @param fill true if the colour will be used for filling
*/
protected void applyColor(Color col, boolean fill) {
preparePainting();
Color c = col;
if (c.getColorSpace().getType()
== ColorSpace.TYPE_RGB) {
PDFColor currentColour = new PDFColor(c.getRed(), c.getGreen(),
c.getBlue());
currentStream.write(currentColour.getColorSpaceOut(fill));
} else if (c.getColorSpace().getType()
== ColorSpace.TYPE_CMYK) {
if (pdfDoc.getPDFAMode().isPDFA1LevelB()) {
//See PDF/A-1, ISO 19005:1:2005(E), 6.2.3.3
//FOP is currently restricted to DeviceRGB if PDF/A-1 is active.
throw new PDFConformanceException(
"PDF/A-1 does not allow mixing DeviceRGB and DeviceCMYK.");
}
float[] cComps = c.getColorComponents(new float[3]);
double[] cmyk = new double[3];
for (int i = 0; i < 3; i++) {
// convert the float elements to doubles for pdf
cmyk[i] = cComps[i];
}
PDFColor currentColour = new PDFColor(cmyk[0], cmyk[1], cmyk[2], cmyk[3]);
currentStream.write(currentColour.getColorSpaceOut(fill));
} else if (c.getColorSpace().getType()
== ColorSpace.TYPE_2CLR) {
// used for black/magenta
float[] cComps = c.getColorComponents(new float[1]);
double[] blackMagenta = new double[1];
for (int i = 0; i < 1; i++) {
blackMagenta[i] = cComps[i];
}
//PDFColor currentColour = new PDFColor(blackMagenta[0], blackMagenta[1]);
//currentStream.write(currentColour.getColorSpaceOut(fill));
} else {
throw new UnsupportedOperationException(
"Color Space not supported by PDFGraphics2D");
}
}
/**
* Apply the java paint to the PDF.
* This takes the java paint sets up the appropraite PDF commands
* for the drawing with that paint.
* Currently this supports the gradients and patterns from batik.
*
* @param paint the paint to convert to PDF
* @param fill true if the paint should be set for filling
*/
protected boolean applyPaint(Paint paint, boolean fill) {
preparePainting();
if (paint instanceof Color) {
return true;
}
if (paint instanceof LinearGradientPaint) {
LinearGradientPaint gp = (LinearGradientPaint)paint;
// This code currently doesn't support 'repeat'.
// For linear gradients it is possible to construct
// a 'tile' that is repeated with a PDF pattern, but
// it would be very tricky as you would have to rotate
// the coordinate system so the repeat was axially
// aligned. At this point I'm just going to rasterize it.
MultipleGradientPaint.CycleMethodEnum cycle = gp.getCycleMethod();
if (cycle != MultipleGradientPaint.NO_CYCLE) {
return false;
}
Color[] cols = gp.getColors();
float[] fractions = gp.getFractions();
// Build proper transform from gradient space to page space
// ('Patterns' don't get userspace transform).
AffineTransform transform;
transform = new AffineTransform(graphicsState.getTransform());
transform.concatenate(getTransform());
transform.concatenate(gp.getTransform());
List theMatrix = new java.util.ArrayList();
double [] mat = new double[6];
transform.getMatrix(mat);
for (int idx = 0; idx < mat.length; idx++) {
theMatrix.add(new Double(mat[idx]));
}
Point2D p1 = gp.getStartPoint();
Point2D p2 = gp.getEndPoint();
List theCoords = new java.util.ArrayList();
theCoords.add(new Double(p1.getX()));
theCoords.add(new Double(p1.getY()));
theCoords.add(new Double(p2.getX()));
theCoords.add(new Double(p2.getY()));
List theExtend = new java.util.ArrayList();
theExtend.add(new Boolean(true));
theExtend.add(new Boolean(true));
List theDomain = new java.util.ArrayList();
theDomain.add(new Double(0));
theDomain.add(new Double(1));
List theEncode = new java.util.ArrayList();
theEncode.add(new Double(0));
theEncode.add(new Double(1));
theEncode.add(new Double(0));
theEncode.add(new Double(1));
List theBounds = new java.util.ArrayList();
List someColors = new java.util.ArrayList();
for (int count = 0; count < cols.length; count++) {
Color c1 = cols[count];
if (c1.getAlpha() != 255) {
return false; // PDF can't do alpha
}
PDFColor color1 = new PDFColor(c1.getRed(), c1.getGreen(),
c1.getBlue());
someColors.add(color1);
if (count > 0 && count < cols.length - 1) {
theBounds.add(new Double(fractions[count]));
}
}
PDFColorSpace aColorSpace;
aColorSpace = new PDFColorSpace(PDFColorSpace.DEVICE_RGB);
PDFPattern myPat = pdfDoc.getFactory().makeGradient(
resourceContext, false, aColorSpace,
someColors, theBounds, theCoords, theMatrix);
currentStream.write(myPat.getColorSpaceOut(fill));
return true;
}
if (paint instanceof RadialGradientPaint) {
RadialGradientPaint rgp = (RadialGradientPaint)paint;
// There is essentially no way to support repeate
// in PDF for radial gradients (the one option would
// be to 'grow' the outer circle until it fully covered
// the bounds and then grow the stops accordingly, the
// problem is that this may require an extremely large
// number of stops for cases where the focus is near
// the edge of the outer circle). so we rasterize.
MultipleGradientPaint.CycleMethodEnum cycle = rgp.getCycleMethod();
if (cycle != MultipleGradientPaint.NO_CYCLE) {
return false;
}
AffineTransform transform;
transform = new AffineTransform(graphicsState.getTransform());
transform.concatenate(getTransform());
transform.concatenate(rgp.getTransform());
List theMatrix = new java.util.ArrayList();
double [] mat = new double[6];
transform.getMatrix(mat);
for (int idx = 0; idx < mat.length; idx++) {
theMatrix.add(new Double(mat[idx]));
}
double ar = rgp.getRadius();
Point2D ac = rgp.getCenterPoint();
Point2D af = rgp.getFocusPoint();
List theCoords = new java.util.ArrayList();
double dx = af.getX() - ac.getX();
double dy = af.getY() - ac.getY();
double d = Math.sqrt(dx * dx + dy * dy);
if (d > ar) {
// the center point af must be within the circle with
// radius ar centered at ac so limit it to that.
double scale = (ar * .9999) / d;
dx = dx * scale;
dy = dy * scale;
}
theCoords.add(new Double(ac.getX() + dx)); // Fx
theCoords.add(new Double(ac.getY() + dy)); // Fy
theCoords.add(new Double(0));
theCoords.add(new Double(ac.getX()));
theCoords.add(new Double(ac.getY()));
theCoords.add(new Double(ar));
Color[] cols = rgp.getColors();
List someColors = new java.util.ArrayList();
for (int count = 0; count < cols.length; count++) {
Color cc = cols[count];
if (cc.getAlpha() != 255) {
return false; // PDF can't do alpha
}
someColors.add(new PDFColor(cc.getRed(), cc.getGreen(),
cc.getBlue()));
}
float[] fractions = rgp.getFractions();
List theBounds = new java.util.ArrayList();
for (int count = 1; count < fractions.length - 1; count++) {
float offset = fractions[count];
theBounds.add(new Double(offset));
}
PDFColorSpace colSpace;
colSpace = new PDFColorSpace(PDFColorSpace.DEVICE_RGB);
PDFPattern myPat = pdfDoc.getFactory().makeGradient
(resourceContext, true, colSpace,
someColors, theBounds, theCoords, theMatrix);
currentStream.write(myPat.getColorSpaceOut(fill));
return true;
}
if (paint instanceof PatternPaint) {
PatternPaint pp = (PatternPaint)paint;
return createPattern(pp, fill);
}
return false; // unknown paint
}
private boolean createPattern(PatternPaint pp, boolean fill) {
preparePainting();
FontInfo fontInfo = new FontInfo();
FontSetup.setup(fontInfo, null, null);
PDFResources res = pdfDoc.getFactory().makeResources();
PDFResourceContext context = new PDFResourceContext(res);
PDFGraphics2D pattGraphic = new PDFGraphics2D(textAsShapes, fontInfo,
pdfDoc, context, pageRef,
"", 0);
pattGraphic.setGraphicContext(new GraphicContext());
pattGraphic.gc.validateTransformStack();
pattGraphic.setRenderingHints(this.getRenderingHints());
pattGraphic.setOutputStream(outputStream);
GraphicsNode gn = pp.getGraphicsNode();
Rectangle2D gnBBox = gn.getBounds();
Rectangle2D rect = pp.getPatternRect();
// if (!pp.getOverflow()) {
gn.paint(pattGraphic);
// } else {
// /* Commented out until SVN version of Batik is included */
// // For overflow we need to paint the content from
// // all the tiles who's overflow will intersect one
// // tile (left->right, top->bottom). Then we can
// // simply replicate that tile as normal.
// double gnMinX = gnBBox.getX();
// double gnMaxX = gnBBox.getX() + gnBBox.getWidth();
// double gnMinY = gnBBox.getY();
// double gnMaxY = gnBBox.getY() + gnBBox.getHeight();
// double patMaxX = rect.getX() + rect.getWidth();
// double patMaxY = rect.getY() + rect.getHeight();
// double stepX = rect.getWidth();
// double stepY = rect.getHeight();
//
// int startX = (int)((rect.getX() - gnMaxX)/stepX);
// int startY = (int)((rect.getY() - gnMaxY)/stepY);
//
// int endX = (int)((patMaxX - gnMinX)/stepX);
// int endY = (int)((patMaxY - gnMinY)/stepY);
//
// pattGraphic.translate(startX*stepX, startY*stepY);
// for (int yIdx=startY; yIdx<=endY; yIdx++) {
// for (int xIdx=startX; xIdx<=endX; xIdx++) {
// gn.paint(pattGraphic);
// pattGraphic.translate(stepX,0);
// }
// pattGraphic.translate(-(endX-startX+1)*stepX, stepY);
// }
// }
List bbox = new java.util.ArrayList();
bbox.add(new Double(rect.getX()));
bbox.add(new Double(rect.getHeight() + rect.getY()));
bbox.add(new Double(rect.getWidth() + rect.getX()));
bbox.add(new Double(rect.getY()));
AffineTransform transform;
transform = new AffineTransform(graphicsState.getTransform());
transform.concatenate(getTransform());
transform.concatenate(pp.getPatternTransform());
List theMatrix = new java.util.ArrayList();
double [] mat = new double[6];
transform.getMatrix(mat);
for (int idx = 0; idx < mat.length; idx++) {
theMatrix.add(new Double(mat[idx]));
}
/** @todo see if pdfDoc and res can be linked here,
(currently res <> PDFDocument's resources) so addFonts()
can be moved to PDFDocument class */
res.addFonts(pdfDoc, fontInfo);
PDFPattern myPat = pdfDoc.getFactory().makePattern(
resourceContext, 1, res, 1, 1, bbox,
rect.getWidth(), rect.getHeight(),
theMatrix, null,
pattGraphic.getBuffer());
currentStream.write(myPat.getColorSpaceOut(fill));
PDFAnnotList annots = context.getAnnotations();
if (annots != null) {
this.pdfDoc.addObject(annots);
}
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
return true;
}
protected boolean applyUnknownPaint(Paint paint, Shape shape) {
preparePainting();
Shape clip = getClip();
Rectangle2D usrClipBounds, usrBounds;
usrBounds = shape.getBounds2D();
usrClipBounds = clip.getBounds2D();
if (!usrClipBounds.intersects(usrBounds)) {
return true;
}
Rectangle2D.intersect(usrBounds, usrClipBounds, usrBounds);
double usrX = usrBounds.getX();
double usrY = usrBounds.getY();
double usrW = usrBounds.getWidth();
double usrH = usrBounds.getHeight();
Rectangle devShapeBounds, devClipBounds, devBounds;
AffineTransform at = getTransform();
devShapeBounds = at.createTransformedShape(shape).getBounds();
devClipBounds = at.createTransformedShape(clip).getBounds();
if (!devClipBounds.intersects(devShapeBounds)) {
return true;
}
devBounds = devShapeBounds.intersection(devClipBounds);
int devX = devBounds.x;
int devY = devBounds.y;
int devW = devBounds.width;
int devH = devBounds.height;
ColorSpace rgbCS = ColorSpace.getInstance(ColorSpace.CS_sRGB);
ColorModel rgbCM = new DirectColorModel
(rgbCS, 32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
false, DataBuffer.TYPE_BYTE);
PaintContext pctx = paint.createContext(rgbCM, devBounds, usrBounds,
at, getRenderingHints());
PDFXObject imageInfo = pdfDoc.getImage
("TempImage:" + pctx.toString());
if (imageInfo != null) {
resourceContext.getPDFResources().addXObject(imageInfo);
} else {
Raster r = pctx.getRaster(devX, devY, devW, devH);
WritableRaster wr = (WritableRaster)r;
wr = wr.createWritableTranslatedChild(0, 0);
ColorModel pcm = pctx.getColorModel();
BufferedImage bi = new BufferedImage
(pcm, wr, pcm.isAlphaPremultiplied(), null);
final byte[] rgb = new byte[devW * devH * 3];
final int[] line = new int[devW];
final byte[] mask;
int x, y, val, rgbIdx = 0;
if (pcm.hasAlpha()) {
mask = new byte[devW * devH];
int maskIdx = 0;
for (y = 0; y < devH; y++) {
bi.getRGB(0, y, devW, 1, line, 0, devW);
for (x = 0; x < devW; x++) {
val = line[x];
mask[maskIdx++] = (byte)(val >>> 24);
rgb[rgbIdx++] = (byte)((val >> 16) & 0x0FF);
rgb[rgbIdx++] = (byte)((val >> 8 ) & 0x0FF);
rgb[rgbIdx++] = (byte)((val ) & 0x0FF);
}
}
} else {
mask = null;
for (y = 0; y < devH; y++) {
bi.getRGB(0, y, devW, 1, line, 0, devW);
for (x = 0; x < devW; x++) {
val = line[x];
rgb[rgbIdx++] = (byte)((val >> 16) & 0x0FF);
rgb[rgbIdx++] = (byte)((val >> 8 ) & 0x0FF);
rgb[rgbIdx++] = (byte)((val ) & 0x0FF);
}
}
}
String maskRef = null;
if (mask != null) {
BitmapImage fopimg = new BitmapImage
("TempImageMask:" + pctx.toString(), devW, devH, mask, null);
fopimg.setColorSpace(new PDFColorSpace(PDFColorSpace.DEVICE_GRAY));
PDFXObject xobj = pdfDoc.addImage(resourceContext, fopimg);
maskRef = xobj.referencePDF();
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
}
BitmapImage fopimg;
fopimg = new BitmapImage("TempImage:" + pctx.toString(),
devW, devH, rgb, maskRef);
fopimg.setTransparent(new PDFColor(255, 255, 255));
imageInfo = pdfDoc.addImage(resourceContext, fopimg);
if (outputStream != null) {
try {
this.pdfDoc.output(outputStream);
} catch (IOException ioe) {
// ignore exception, will be thrown again later
}
}
}
currentStream.write("q\n");
writeClip(shape);
currentStream.write("" + usrW + " 0 0 " + (-usrH) + " " + usrX
+ " " + (usrY + usrH) + " cm\n" + "/Im"
+ imageInfo.getXNumber() + " Do\nQ\n");
return true;
}
/**
* Apply the stroke to the PDF.
* This takes the java stroke and outputs the appropriate settings
* to the PDF so that the stroke attributes are handled.
*
* @param stroke the java stroke
*/
protected void applyStroke(Stroke stroke) {
preparePainting();
if (stroke instanceof BasicStroke) {
BasicStroke bs = (BasicStroke)stroke;
float[] da = bs.getDashArray();
if (da != null) {
currentStream.write("[");
for (int count = 0; count < da.length; count++) {
if (((int)da[count]) == 0) {
// the dasharray units in pdf are (whole) numbers
// in user space units, cannot be 0
currentStream.write("1");
} else {
currentStream.write("" + ((int)da[count]));
}
if (count < da.length - 1) {
currentStream.write(" ");
}
}
currentStream.write("] ");
float offset = bs.getDashPhase();
currentStream.write(((int)offset) + " d\n");
}
int ec = bs.getEndCap();
switch (ec) {
case BasicStroke.CAP_BUTT:
currentStream.write(0 + " J\n");
break;
case BasicStroke.CAP_ROUND:
currentStream.write(1 + " J\n");
break;
case BasicStroke.CAP_SQUARE:
currentStream.write(2 + " J\n");
break;
}
int lj = bs.getLineJoin();
switch (lj) {
case BasicStroke.JOIN_MITER:
currentStream.write(0 + " j\n");
break;
case BasicStroke.JOIN_ROUND:
currentStream.write(1 + " j\n");
break;
case BasicStroke.JOIN_BEVEL:
currentStream.write(2 + " j\n");
break;
}
float lw = bs.getLineWidth();
currentStream.write(PDFNumber.doubleOut(lw) + " w\n");
float ml = bs.getMiterLimit();
currentStream.write(PDFNumber.doubleOut(ml) + " M\n");
}
}
/**
* Renders a {@link RenderedImage},
* applying a transform from image
* space into user space before drawing.
* The transformation from user space into device space is done with
* the current Transform in the Graphics2D.
* The specified transformation is applied to the image before the
* transform attribute in the Graphics2D context is applied.
* The rendering attributes applied include the Clip,
* Transform, and Composite attributes. Note
* that no rendering is done if the specified transform is
* noninvertible.
* @param img the image to be rendered
* @param xform the transformation from image space into user space
* @see #transform
* @see #setTransform
* @see #setComposite
* @see #clip
* @see #setClip
*/
public void drawRenderedImage(RenderedImage img, AffineTransform xform) {
//NYI
}
/**
* Renders a
* {@link RenderableImage},
* applying a transform from image space into user space before drawing.
* The transformation from user space into device space is done with
* the current Transform in the Graphics2D.
* The specified transformation is applied to the image before the
* transform attribute in the Graphics2D context is applied.
* The rendering attributes applied include the Clip,
* Transform, and Composite attributes. Note
* that no rendering is done if the specified transform is
* noninvertible.
*
* Rendering hints set on the
* When drawing operations are performed, pixels which are the
* current color are changed to the specified color, and vice versa.
*
* Pixels that are of colors other than those two colors are changed
* in an unpredictable but reversible manner; if the same figure is
* drawn twice, then all pixels are restored to their original values.
* @param c1 the XOR alternation color
*/
public void setXORMode(Color c1) {
//NYI
}
/**
* Copies an area of the component by a distance specified by
* Graphics2D object might
* be used in rendering the RenderableImage.
* If explicit control is required over specific hints recognized by a
* specific RenderableImage, or if knowledge of which hints
* are used is required, then a RenderedImage should be
* obtained directly from the RenderableImage
* and rendered using
* {@link #drawRenderedImage(RenderedImage, AffineTransform) drawRenderedImage}.
* @param img the image to be rendered
* @param xform the transformation from image space into user space
* @see #transform
* @see #setTransform
* @see #setComposite
* @see #clip
* @see #setClip
* @see #drawRenderedImage
*/
public void drawRenderableImage(RenderableImage img,
AffineTransform xform) {
//NYI
}
/**
* Renders the text specified by the specified String,
* using the current Font and Paint attributes
* in the Graphics2D context.
* The baseline of the first character is at position
* (x, y) in the User Space.
* The rendering attributes applied include the Clip,
* Transform, Paint, Font and
* Composite attributes. For characters in script systems
* such as Hebrew and Arabic, the glyphs can be rendered from right to
* left, in which case the coordinate supplied is the location of the
* leftmost character on the baseline.
* @param s the String to be rendered
* @param x the coordinate where the String
* should be rendered
* @param y the coordinate where the String
* should be rendered
* @see #setPaint
* @see java.awt.Graphics#setColor
* @see java.awt.Graphics#setFont
* @see #setTransform
* @see #setComposite
* @see #setClip
*/
public void drawString(String s, float x, float y) {
preparePainting();
Font fontState;
AffineTransform fontTransform = null;
if (ovFontState == null) {
java.awt.Font gFont = getFont();
fontTransform = gFont.getTransform();
String n = gFont.getFamily();
if (n.equals("sanserif")) {
n = "sans-serif";
}
float siz = gFont.getSize2D();
String style = gFont.isItalic() ? "italic" : "normal";
int weight = gFont.isBold() ? Font.BOLD : Font.NORMAL;
FontTriplet triplet = fontInfo.fontLookup(n, style, weight);
fontState = fontInfo.getFontInstance(triplet, (int)(siz * 1000 + 0.5));
} else {
fontState = fontInfo.getFontInstance(
ovFontState.getFontTriplet(), ovFontState.getFontSize());
ovFontState = null;
}
String name;
float size;
name = fontState.getFontName();
size = (float)fontState.getFontSize() / 1000f;
if ((!name.equals(this.currentFontName))
|| (size != this.currentFontSize)) {
this.currentFontName = name;
this.currentFontSize = size;
currentStream.write("/" + name + " " + size + " Tf\n");
}
currentStream.write("q\n");
Color c = getColor();
applyColor(c, true);
applyPaint(getPaint(), true);
int salpha = c.getAlpha();
if (salpha != 255) {
Map vals = new java.util.HashMap();
vals.put(PDFGState.GSTATE_ALPHA_NONSTROKE, new Float(salpha / 255f));
PDFGState gstate = pdfDoc.getFactory().makeGState(
vals, graphicsState.getGState());
resourceContext.addGState(gstate);
currentStream.write("/" + gstate.getName() + " gs\n");
}
Map kerning = null;
boolean kerningAvailable = false;
kerning = fontState.getKerning();
if (kerning != null && !kerning.isEmpty()) {
kerningAvailable = true;
}
// This assumes that *all* CIDFonts use a /ToUnicode mapping
boolean useMultiByte = false;
org.apache.fop.fonts.Typeface f =
(org.apache.fop.fonts.Typeface)fontInfo.getFonts().get(name);
if (f instanceof LazyFont) {
if (((LazyFont) f).getRealFont() instanceof CIDFont) {
useMultiByte = true;
}
} else if (f instanceof CIDFont) {
useMultiByte = true;
}
// String startText = useMultiByte ? "Graphics2D context's current Paint. The
* iterator must specify a font
* for each character. The baseline of the
* first character is at position (x, y) in the
* User Space.
* The rendering attributes applied include the Clip,
* Transform, Paint, and
* Composite attributes.
* For characters in script systems such as Hebrew and Arabic,
* the glyphs can be rendered from right to left, in which case the
* coordinate supplied is the location of the leftmost character
* on the baseline.
* @param iterator the iterator whose text is to be rendered
* @param x the coordinate where the iterator's text is to be
* rendered
* @param y the coordinate where the iterator's text is to be
* rendered
* @see #setPaint
* @see java.awt.Graphics#setColor
* @see #setTransform
* @see #setComposite
* @see #setClip
*/
public void drawString(AttributedCharacterIterator iterator, float x,
float y) {
preparePainting();
Font fontState = null;
Shape imclip = getClip();
writeClip(imclip);
Color c = getColor();
applyColor(c, true);
applyPaint(getPaint(), true);
boolean fill = true;
boolean stroke = false;
if (true) {
Stroke currentStroke = getStroke();
stroke = true;
applyStroke(currentStroke);
applyColor(c, false);
applyPaint(getPaint(), false);
}
currentStream.write("BT\n");
// set text rendering mode:
// 0 - fill, 1 - stroke, 2 - fill then stroke
int textr = 0;
if (fill && stroke) {
textr = 2;
} else if (stroke) {
textr = 1;
}
currentStream.write(textr + " Tr\n");
AffineTransform trans = getTransform();
trans.translate(x, y);
double[] vals = new double[6];
trans.getMatrix(vals);
for (char ch = iterator.first(); ch != CharacterIterator.DONE;
ch = iterator.next()) {
//Map attr = iterator.getAttributes();
String name = fontState.getFontName();
int size = fontState.getFontSize();
if ((!name.equals(this.currentFontName))
|| (size != this.currentFontSize)) {
this.currentFontName = name;
this.currentFontSize = size;
currentStream.write("/" + name + " " + (size / 1000)
+ " Tf\n");
}
currentStream.write(PDFNumber.doubleOut(vals[0], DEC) + " "
+ PDFNumber.doubleOut(vals[1], DEC) + " "
+ PDFNumber.doubleOut(vals[2], DEC) + " "
+ PDFNumber.doubleOut(vals[3], DEC) + " "
+ PDFNumber.doubleOut(vals[4], DEC) + " "
+ PDFNumber.doubleOut(vals[5], DEC) + " Tm (" + ch
+ ") Tj\n");
}
currentStream.write("ET\n");
}
/**
* Fills the interior of a Shape using the settings of the
* Graphics2D context. The rendering attributes applied
* include the Clip, Transform,
* Paint, and Composite.
* @param s the Shape to be filled
* @see #setPaint
* @see java.awt.Graphics#setColor
* @see #transform
* @see #setTransform
* @see #setComposite
* @see #clip
* @see #setClip
*/
public void fill(Shape s) {
preparePainting();
//Transparency shortcut
Color c;
c = getBackground();
if (c.getAlpha() == 0) {
c = getColor();
if (c.getAlpha() == 0) {
return;
}
}
AffineTransform trans = getTransform();
double[] tranvals = new double[6];
trans.getMatrix(tranvals);
Shape imclip = getClip();
boolean newClip = graphicsState.checkClip(imclip);
boolean newTransform = graphicsState.checkTransform(trans)
&& !trans.isIdentity();
if (newClip || newTransform) {
currentStream.write("q\n");
graphicsState.push();
if (newTransform) {
concatMatrix(tranvals);
}
if (newClip) {
writeClip(imclip);
}
}
if (c.getAlpha() != 255) {
Map vals = new java.util.HashMap();
vals.put(PDFGState.GSTATE_ALPHA_NONSTROKE,
new Float(c.getAlpha() / 255f));
PDFGState gstate = pdfDoc.getFactory().makeGState(
vals, graphicsState.getGState());
resourceContext.addGState(gstate);
currentStream.write("/" + gstate.getName() + " gs\n");
}
c = getColor();
if (graphicsState.setColor(c)) {
applyColor(c, true);
}
c = getBackground();
if (graphicsState.setBackColor(c)) {
applyColor(c, false);
}
Paint paint = getPaint();
if (graphicsState.setPaint(paint)) {
if (!applyPaint(paint, true)) {
// Use the shape to 'clip' the paint contents.
applyUnknownPaint(paint, s);
if (newClip || newTransform) {
currentStream.write("Q\n");
graphicsState.pop();
}
return;
}
}
//PathIterator iter = s.getPathIterator(getTransform());
PathIterator iter = s.getPathIterator(IDENTITY_TRANSFORM);
processPathIterator(iter);
doDrawing(true, false,
iter.getWindingRule() == PathIterator.WIND_EVEN_ODD);
if (newClip || newTransform) {
currentStream.write("Q\n");
graphicsState.pop();
}
}
/**
* Processes a path iterator generating the necessary painting operations.
* @param iter PathIterator to process
*/
public void processPathIterator(PathIterator iter) {
while (!iter.isDone()) {
double[] vals = new double[6];
int type = iter.currentSegment(vals);
switch (type) {
case PathIterator.SEG_CUBICTO:
currentStream.write(PDFNumber.doubleOut(vals[0], DEC) + " "
+ PDFNumber.doubleOut(vals[1], DEC) + " "
+ PDFNumber.doubleOut(vals[2], DEC) + " "
+ PDFNumber.doubleOut(vals[3], DEC) + " "
+ PDFNumber.doubleOut(vals[4], DEC) + " "
+ PDFNumber.doubleOut(vals[5], DEC) + " c\n");
break;
case PathIterator.SEG_LINETO:
currentStream.write(PDFNumber.doubleOut(vals[0], DEC) + " "
+ PDFNumber.doubleOut(vals[1], DEC) + " l\n");
break;
case PathIterator.SEG_MOVETO:
currentStream.write(PDFNumber.doubleOut(vals[0], DEC) + " "
+ PDFNumber.doubleOut(vals[1], DEC) + " m\n");
break;
case PathIterator.SEG_QUADTO:
currentStream.write(PDFNumber.doubleOut(vals[0], DEC) + " "
+ PDFNumber.doubleOut(vals[1], DEC) + " "
+ PDFNumber.doubleOut(vals[2], DEC) + " "
+ PDFNumber.doubleOut(vals[3], DEC) + " y\n");
break;
case PathIterator.SEG_CLOSE:
currentStream.write("h\n");
break;
default:
break;
}
iter.next();
}
}
/**
* Do the PDF drawing command.
* This does the PDF drawing command according to fill
* stroke and winding rule.
*
* @param fill true if filling the path
* @param stroke true if stroking the path
* @param nonzero true if using the non-zero winding rule
*/
protected void doDrawing(boolean fill, boolean stroke, boolean nonzero) {
preparePainting();
if (fill) {
if (stroke) {
if (nonzero) {
currentStream.write("B*\n");
} else {
currentStream.write("B\n");
}
} else {
if (nonzero) {
currentStream.write("f*\n");
} else {
currentStream.write("f\n");
}
}
} else {
// if (stroke)
currentStream.write("S\n");
}
}
/**
* Returns the device configuration associated with this
* Graphics2D.
*
* @return the PDF graphics configuration
*/
public GraphicsConfiguration getDeviceConfiguration() {
return new PDFGraphicsConfiguration();
}
/**
* Used to create proper font metrics
*/
private Graphics2D fmg;
{
BufferedImage bi = new BufferedImage(1, 1,
BufferedImage.TYPE_INT_ARGB);
fmg = bi.createGraphics();
}
/**
* Gets the font metrics for the specified font.
* @return the font metrics for the specified font.
* @param f the specified font
* @see java.awt.Graphics#getFont
* @see java.awt.FontMetrics
* @see java.awt.Graphics#getFontMetrics()
*/
public java.awt.FontMetrics getFontMetrics(java.awt.Font f) {
return fmg.getFontMetrics(f);
}
/**
* Sets the paint mode of this graphics context to alternate between
* this graphics context's current color and the new specified color.
* This specifies that logical pixel operations are performed in the
* XOR mode, which alternates pixels between the current color and
* a specified XOR color.
* dx and dy. From the point specified
* by x and y, this method
* copies downwards and to the right. To copy an area of the
* component to the left or upwards, specify a negative value for
* dx or dy.
* If a portion of the source rectangle lies outside the bounds
* of the component, or is obscured by another window or component,
* copyArea will be unable to copy the associated
* pixels. The area that is omitted can be refreshed by calling
* the component's paint method.
* @param x the x coordinate of the source rectangle.
* @param y the y coordinate of the source rectangle.
* @param width the width of the source rectangle.
* @param height the height of the source rectangle.
* @param dx the horizontal distance to copy the pixels.
* @param dy the vertical distance to copy the pixels.
*/
public void copyArea(int x, int y, int width, int height, int dx,
int dy) {
//NYI
}
}