Example usage for java.awt.geom AffineTransform getMatrix

Introduction

In this page you can find the example usage for java.awt.geom AffineTransform getMatrix.

Prototype

public void getMatrix(double[] flatmatrix) 

Source Link

Document

Retrieves the 6 specifiable values in the 3x3 affine transformation matrix and places them into an array of double precisions values.

Usage

From source file:org.pentaho.reporting.engine.classic.core.modules.output.pageable.pdf.internal.PdfGraphics2D.java

private AffineTransform normalizeMatrix() {
    final double[] mx = new double[6];
    AffineTransform result = AffineTransform.getTranslateInstance(0, 0);
    result.getMatrix(mx);
    mx[3] = -1;//from   w  ww. ja va  2s .co  m
    mx[5] = height;
    result = new AffineTransform(mx);
    result.concatenate(transform);
    return result;
}

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From source file:org.pentaho.reporting.engine.classic.core.modules.output.pageable.pdf.internal.PdfGraphics2D.java

public boolean drawPdfImage(final com.lowagie.text.Image image, final Image img, AffineTransform xform,
        final ImageObserver obs) {
    if (img == null) {
        throw new NullPointerException("Image must not be null.");
    }//  w  ww  .j  a  va2 s  .c o m
    if (image == null) {
        throw new NullPointerException("Image must not be null.");
    }
    if (xform == null) {
        xform = AffineTransform.getTranslateInstance(0, 0);
    }

    xform.translate(0, img.getHeight(obs));
    xform.scale(img.getWidth(obs), img.getHeight(obs));

    final AffineTransform inverse = this.normalizeMatrix();
    final AffineTransform flipper = FLIP_TRANSFORM;
    inverse.concatenate(xform);
    inverse.concatenate(flipper);

    try {
        final double[] mx = new double[6];
        inverse.getMatrix(mx);
        if (currentFillGState != 255) {
            PdfGState gs = fillGState[255];
            if (gs == null) {
                gs = new PdfGState();
                gs.setFillOpacity(1);
                fillGState[255] = gs;
            }
            cb.setGState(gs);
        }

        cb.addImage(image, (float) mx[0], (float) mx[1], (float) mx[2], (float) mx[3], (float) mx[4],
                (float) mx[5]);
    } catch (Exception ex) {
        PdfGraphics2D.logger.error("Failed to draw the image: ", ex);
        // throw new IllegalArgumentException("Failed to draw the image");
    } finally {
        if (currentFillGState != 255) {
            final PdfGState gs = fillGState[currentFillGState];
            cb.setGState(gs);
        }
    }
    return true;
}

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From source file:org.pentaho.reporting.engine.classic.core.modules.output.pageable.pdf.internal.PdfGraphics2D.java

private void setPaint(final boolean invert, final double xoffset, final double yoffset, final boolean fill) {
    if (paint instanceof Color) {
        final Color color = (Color) paint;
        final int alpha = color.getAlpha();
        if (fill) {
            if (alpha != currentFillGState) {
                currentFillGState = alpha;
                PdfGState gs = fillGState[alpha];
                if (gs == null) {
                    gs = new PdfGState();
                    gs.setFillOpacity(alpha / 255.00f);
                    fillGState[alpha] = gs;
                }//from  w w w  .j av a2  s  .  c o  m
                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 / 255.0f);
                    strokeGState[alpha] = gs;
                }
                cb.setGState(gs);
            }
            cb.setColorStroke(color);
        }
    } else if (paint instanceof GradientPaint) {
        final GradientPaint gp = (GradientPaint) paint;
        final Point2D p1 = gp.getPoint1();
        transform.transform(p1, p1);
        final Point2D p2 = gp.getPoint2();
        transform.transform(p2, p2);
        final Color c1 = gp.getColor1();
        final Color c2 = gp.getColor2();
        final PdfShading shading = PdfShading.simpleAxial(cb.getPdfWriter(), (float) p1.getX(),
                normalizeY((float) p1.getY()), (float) p2.getX(), normalizeY((float) p2.getY()), c1, c2);
        final PdfShadingPattern pat = new PdfShadingPattern(shading);
        if (fill) {
            cb.setShadingFill(pat);
        } else {
            cb.setShadingStroke(pat);
        }
    } else if (paint instanceof TexturePaint) {
        try {
            final TexturePaint tp = (TexturePaint) paint;
            final BufferedImage img = tp.getImage();
            final Rectangle2D rect = tp.getAnchorRect();
            final com.lowagie.text.Image image = com.lowagie.text.Image.getInstance(img, null);
            final PdfPatternPainter pattern = cb.createPattern(image.getWidth(), image.getHeight());
            final AffineTransform inverse = this.normalizeMatrix();
            inverse.translate(rect.getX(), rect.getY());
            inverse.scale(rect.getWidth() / image.getWidth(), -rect.getHeight() / image.getHeight());
            final 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 {
            int type = BufferedImage.TYPE_4BYTE_ABGR;
            if (paint.getTransparency() == Transparency.OPAQUE) {
                type = BufferedImage.TYPE_3BYTE_BGR;
            }
            final BufferedImage img = new BufferedImage((int) width, (int) height, type);
            final Graphics2D g = (Graphics2D) img.getGraphics();
            g.transform(transform);
            final 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) {
                final AffineTransform tx = new AffineTransform();
                tx.scale(1, -1);
                tx.translate(-xoffset, -yoffset);
                g.drawImage(img, tx, null);
            }
            g.dispose();
            // g = null;
            final com.lowagie.text.Image image = com.lowagie.text.Image.getInstance(img, null);
            final 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);
            }
        }
    }
}

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