/**
* Creates a PdfPattern object.
*
* @param painter a pattern painter instance
* @param compressionLevel the compressionLevel for the stream
* @since 2.1.3
*/
PdfPattern(PdfPatternPainter painter, int compressionLevel) {
super();
PdfNumber one = new PdfNumber(1);
PdfArray matrix = painter.getMatrix();
if (matrix != null) {
put(PdfName.MATRIX, matrix);
}
put(PdfName.TYPE, PdfName.PATTERN);
put(PdfName.BBOX, new PdfRectangle(painter.getBoundingBox()));
put(PdfName.RESOURCES, painter.getResources());
put(PdfName.TILINGTYPE, one);
put(PdfName.PATTERNTYPE, one);
if (painter.isStencil()) put(PdfName.PAINTTYPE, new PdfNumber(2));
else put(PdfName.PAINTTYPE, one);
put(PdfName.XSTEP, new PdfNumber(painter.getXStep()));
put(PdfName.YSTEP, new PdfNumber(painter.getYStep()));
bytes = painter.toPdf(null);
put(PdfName.LENGTH, new PdfNumber(bytes.length));
try {
flateCompress(compressionLevel);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public int hashCode() {
return painter.hashCode();
}
private void setPaint(boolean invert, double xoffset, double yoffset, boolean fill) {
if (paint instanceof Color) {
Color color = (Color) paint;
int alpha = color.getAlpha();
if (fill) {
if (alpha != currentFillGState) {
currentFillGState = alpha;
PdfGState gs = fillGState[alpha];
if (gs == null) {
gs = new PdfGState();
gs.setFillOpacity(alpha / 255f);
fillGState[alpha] = gs;
}
cb.setGState(gs);
}
cb.setColorFill(color);
} else {
if (alpha != currentStrokeGState) {
currentStrokeGState = alpha;
PdfGState gs = strokeGState[alpha];
if (gs == null) {
gs = new PdfGState();
gs.setStrokeOpacity(alpha / 255f);
strokeGState[alpha] = gs;
}
cb.setGState(gs);
}
cb.setColorStroke(color);
}
} else if (paint instanceof GradientPaint) {
GradientPaint gp = (GradientPaint) paint;
Point2D p1 = gp.getPoint1();
transform.transform(p1, p1);
Point2D p2 = gp.getPoint2();
transform.transform(p2, p2);
Color c1 = gp.getColor1();
Color c2 = gp.getColor2();
PdfShading shading =
PdfShading.simpleAxial(
cb.getPdfWriter(),
(float) p1.getX(),
normalizeY((float) p1.getY()),
(float) p2.getX(),
normalizeY((float) p2.getY()),
c1,
c2);
PdfShadingPattern pat = new PdfShadingPattern(shading);
if (fill) cb.setShadingFill(pat);
else cb.setShadingStroke(pat);
} else if (paint instanceof TexturePaint) {
try {
TexturePaint tp = (TexturePaint) paint;
BufferedImage img = tp.getImage();
Rectangle2D rect = tp.getAnchorRect();
com.lowagie.text.Image image = com.lowagie.text.Image.getInstance(img, null);
PdfPatternPainter pattern = cb.createPattern(image.getWidth(), image.getHeight());
AffineTransform inverse = this.normalizeMatrix();
inverse.translate(rect.getX(), rect.getY());
inverse.scale(rect.getWidth() / image.getWidth(), -rect.getHeight() / image.getHeight());
double[] mx = new double[6];
inverse.getMatrix(mx);
pattern.setPatternMatrix(
(float) mx[0],
(float) mx[1],
(float) mx[2],
(float) mx[3],
(float) mx[4],
(float) mx[5]);
image.setAbsolutePosition(0, 0);
pattern.addImage(image);
if (fill) cb.setPatternFill(pattern);
else cb.setPatternStroke(pattern);
} catch (Exception ex) {
if (fill) cb.setColorFill(Color.gray);
else cb.setColorStroke(Color.gray);
}
} else {
try {
BufferedImage img = null;
int type = BufferedImage.TYPE_4BYTE_ABGR;
if (paint.getTransparency() == Transparency.OPAQUE) {
type = BufferedImage.TYPE_3BYTE_BGR;
}
img = new BufferedImage((int) width, (int) height, type);
Graphics2D g = (Graphics2D) img.getGraphics();
g.transform(transform);
AffineTransform inv = transform.createInverse();
Shape fillRect = new Rectangle2D.Double(0, 0, img.getWidth(), img.getHeight());
fillRect = inv.createTransformedShape(fillRect);
g.setPaint(paint);
g.fill(fillRect);
if (invert) {
AffineTransform tx = new AffineTransform();
tx.scale(1, -1);
tx.translate(-xoffset, -yoffset);
g.drawImage(img, tx, null);
}
g.dispose();
g = null;
com.lowagie.text.Image image = com.lowagie.text.Image.getInstance(img, null);
PdfPatternPainter pattern = cb.createPattern(width, height);
image.setAbsolutePosition(0, 0);
pattern.addImage(image);
if (fill) cb.setPatternFill(pattern);
else cb.setPatternStroke(pattern);
} catch (Exception ex) {
if (fill) cb.setColorFill(Color.gray);
else cb.setColorStroke(Color.gray);
}
}
}
