Package org.apache.pdfbox.util

Examples of org.apache.pdfbox.util.Matrix

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     *
     * @return the matrix
     */
    public Matrix getMatrix()
    {
        Matrix retval = null;
        COSArray array = (COSArray) getCOSDictionary().getDictionaryObject(COSName.MATRIX);
        if (array != null)
        {
            retval = new Matrix();
            retval.setValue(0, 0, ((COSNumber) array.get(0)).floatValue());
            retval.setValue(0, 1, ((COSNumber) array.get(1)).floatValue());
            retval.setValue(1, 0, ((COSNumber) array.get(2)).floatValue());
            retval.setValue(1, 1, ((COSNumber) array.get(3)).floatValue());
            retval.setValue(2, 0, ((COSNumber) array.get(4)).floatValue());
            retval.setValue(2, 1, ((COSNumber) array.get(5)).floatValue());
        }
        return retval;
    }
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        try
        {
            PageDrawer drawer = (PageDrawer) context;
   
            float lineWidth = (float) context.getGraphicsState().getLineWidth();
            Matrix ctm = context.getGraphicsState().getCurrentTransformationMatrix();
            if (ctm != null && ctm.getXScale() > 0)
            {
                lineWidth = lineWidth * ctm.getXScale();
            }
           
            if (lineWidth < 0.25)
            {
                lineWidth = 0.25f;
            }

            BasicStroke stroke = (BasicStroke) drawer.getStroke();
            if (stroke == null)
            {
                drawer.setStroke(new BasicStroke(lineWidth));
            }
            else
            {
                float phaseStart = stroke.getDashPhase();
                float[] dashArray = stroke.getDashArray();
                if (dashArray != null)
                {
                    if (ctm != null && ctm.getXScale() > 0)
                    {
                        for (int i = 0; i < dashArray.length; ++i)
                        {
                            dashArray[i] *= ctm.getXScale();
                        }
                    }
                    phaseStart *= ctm.getXScale();
                }
                drawer.setStroke(new BasicStroke(lineWidth, stroke.getEndCap(), stroke.getLineJoin(),
                        stroke.getMiterLimit(), dashArray, phaseStart));
            }
            drawer.strokePath();
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                    PDAppearanceStream appearance =
                        (PDAppearanceStream)appearanceMap.get( appearanceName );
                    if( appearance != null )
                    {
                        Point2D point = new Point2D.Float(rect.getLowerLeftX(), rect.getLowerLeftY());
                        Matrix matrix = appearance.getMatrix();
                        if (matrix != null)
                        {
                            // transform the rectangle using the given matrix
                            AffineTransform at = matrix.createAffineTransform();
                            at.transform(point, point);
                        }
                        g.translate( (int)point.getX(), -(int)point.getY() );
                        processSubStream( page, appearance.getResources(), appearance.getStream() );
                        g.translate( -(int)point.getX(), (int)point.getY() );
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            }
            graphics.setComposite(composite);
            graphics.setPaint(paint);
           
            PDFont font = text.getFont();
            Matrix textPos = text.getTextPos().copy();
            float x = textPos.getXPosition();
            // the 0,0-reference has to be moved from the lower left (PDF) to the upper left (AWT-graphics)
            float y = pageSize.height - textPos.getYPosition();
            // Set translation to 0,0. We only need the scaling and shearing
            textPos.setValue(2, 0, 0);
            textPos.setValue(2, 1, 0);
            // because of the moved 0,0-reference, we have to shear in the opposite direction
            textPos.setValue(0, 1, (-1)*textPos.getValue(0, 1));
            textPos.setValue(1, 0, (-1)*textPos.getValue(1, 0));
            AffineTransform at = textPos.createAffineTransform();
            PDMatrix fontMatrix = font.getFontMatrix();
            at.scale(fontMatrix.getValue(0, 0) * 1000f, fontMatrix.getValue(1, 1) * 1000f);
            //TODO setClip() is a massive performance hot spot. Investigate optimization possibilities
            graphics.setClip(graphicsState.getCurrentClippingPath());
            // the fontSize is no longer needed as it is already part of the transformation
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    public void shFill(COSName shadingName) throws IOException
    {
        PDShadingResources shading = getResources().getShadings().get(shadingName.getName());
        LOG.debug("Shading = " + shading.toString());
        int shadingType = shading.getShadingType();
        Matrix ctm = getGraphicsState().getCurrentTransformationMatrix();
        Paint paint = null;
        switch (shadingType)
        {
            case 1:
                // TODO
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        }
        int imageWidth = awtImage.getWidth();
        int imageHeight = awtImage.getHeight();
        double pageHeight = drawer.getPageSize().getHeight();
       
        Matrix ctm = drawer.getGraphicsState().getCurrentTransformationMatrix();
        int pageRotation = page.findRotation();

        AffineTransform ctmAT = ctm.createAffineTransform();
        ctmAT.scale(1f/imageWidth, 1f/imageHeight);
        Matrix rotationMatrix = new Matrix();
        rotationMatrix.setFromAffineTransform( ctmAT );
        // calculate the inverse rotation angle
        // scaleX = m00 = cos
        // shearX = m01 = -sin
        // tan = sin/cos
        double angle = Math.atan(ctmAT.getShearX()/ctmAT.getScaleX());
        Matrix translationMatrix = null;
        if (pageRotation == 0 || pageRotation == 180)
        {
            translationMatrix = Matrix.getTranslatingInstance((float)(Math.sin(angle)*ctm.getXScale()), (float)(pageHeight-2*ctm.getYPosition()-Math.cos(angle)*ctm.getYScale()));
        }
        else if (pageRotation == 90 || pageRotation == 270)
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     * @param operator The operator that is being executed.
     * @param arguments List
     */
    public void process(PDFOperator operator, List<COSBase> arguments)
    {
        context.setTextMatrix( new Matrix());
        context.setTextLineMatrix( new Matrix() );
    }
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        COSNumber c = (COSNumber) arguments.get(2);
        COSNumber d = (COSNumber) arguments.get(3);
        COSNumber e = (COSNumber) arguments.get(4);
        COSNumber f = (COSNumber) arguments.get(5);

        Matrix newMatrix = new Matrix();
        newMatrix.setValue(0, 0, a.floatValue());
        newMatrix.setValue(0, 1, b.floatValue());
        newMatrix.setValue(1, 0, c.floatValue());
        newMatrix.setValue(1, 1, d.floatValue());
        newMatrix.setValue(2, 0, e.floatValue());
        newMatrix.setValue(2, 1, f.floatValue());

        //this line has changed
        context.getGraphicsState().setCurrentTransformationMatrix(
                newMatrix.multiply( context.getGraphicsState().getCurrentTransformationMatrix() ) );


    }
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                int imageHeight = awtImage.getHeight();
                double pageHeight = drawer.getPageSize().getHeight();

                log.debug("imageWidth: " + imageWidth + "\t\timageHeight: " + imageHeight);
       
                Matrix ctm = drawer.getGraphicsState().getCurrentTransformationMatrix();
                int pageRotation = page.findRotation();

                AffineTransform ctmAT = ctm.createAffineTransform();
                ctmAT.scale(1f/imageWidth, 1f/imageHeight);
                Matrix rotationMatrix = new Matrix();
                rotationMatrix.setFromAffineTransform( ctmAT );
                // calculate the inverse rotation angle
                // scaleX = m00 = cos
                // shearX = m01 = -sin
                // tan = sin/cos
                double angle = Math.atan(ctmAT.getShearX()/ctmAT.getScaleX());
                Matrix translationMatrix = null;
                if (pageRotation == 0 || pageRotation == 180)
                {
                    translationMatrix = Matrix.getTranslatingInstance((float)(Math.sin(angle)*ctm.getXScale()), (float)(pageHeight-2*ctm.getYPosition()-Math.cos(angle)*ctm.getYScale()));
                }
                else if (pageRotation == 90 || pageRotation == 270)
                {
                    translationMatrix = Matrix.getTranslatingInstance((float)(Math.sin(angle)*ctm.getYScale()), (float)(pageHeight-2*ctm.getYPosition()));
                }
                rotationMatrix = rotationMatrix.multiply(translationMatrix);
                rotationMatrix.setValue(0, 1, (-1)*rotationMatrix.getValue(0, 1));
                rotationMatrix.setValue(1, 0, (-1)*rotationMatrix.getValue(1, 0));

                AffineTransform at = new AffineTransform(
                        rotationMatrix.getValue(0,0),rotationMatrix.getValue(0,1),
                        rotationMatrix.getValue(1,0),rotationMatrix.getValue(1,1),
                        rotationMatrix.getValue(2,0),rotationMatrix.getValue(2,1)
                    );
              
                drawer.drawImage( awtImage, at );
            }
            catch( Exception e )
            {
                e.printStackTrace();
                log.error(e, e);
            }
        }
        else if(xobject instanceof PDXObjectForm)
        {
            PDXObjectForm form = (PDXObjectForm)xobject;
            COSStream invoke = (COSStream)form.getCOSObject();
            PDResources pdResources = form.getResources();
            if(pdResources == null)
            {
                pdResources = page.findResources();
            }
            // if there is an optional form matrix, we have to
            // map the form space to the user space
            Matrix matrix = form.getMatrix();
            if (matrix != null)
            {
                Matrix xobjectCTM = matrix.multiply( context.getGraphicsState().getCurrentTransformationMatrix());
                context.getGraphicsState().setCurrentTransformationMatrix(xobjectCTM);
            }
            getContext().processSubStream( page, pdResources, invoke );
        }
        else
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     * It maps the form space into the user space
     * @return the form matrix
     */
    public Matrix getMatrix()
    {
        Matrix retval = null;
        COSArray array = (COSArray)getCOSStream().getDictionaryObject( COSName.MATRIX );
        if( array != null )
        {
            retval = new Matrix();
            retval.setValue(0, 0, ((COSNumber) array.get(0)).floatValue());
            retval.setValue(0, 1, ((COSNumber) array.get(1)).floatValue());
            retval.setValue(1, 0, ((COSNumber) array.get(2)).floatValue());
            retval.setValue(1, 1, ((COSNumber) array.get(3)).floatValue());
            retval.setValue(2, 0, ((COSNumber) array.get(4)).floatValue());
            retval.setValue(2, 1, ((COSNumber) array.get(5)).floatValue());
        }
        return retval;
    }
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Related Classes of org.apache.pdfbox.util.Matrix

  • net.timendum.pdf.Images2HTML
  • net.timendum.pdf.StatisticParser
  • org.apache.pdfbox.contentstream.operator.state.Concatenate
  • org.apache.pdfbox.contentstream.operator.state.SetMatrix
  • org.apache.pdfbox.contentstream.operator.text.BeginText
  • org.apache.pdfbox.contentstream.operator.text.MoveText
  • org.apache.pdfbox.contentstream.PDFStreamEngine
  • org.apache.pdfbox.contentstream.PDFTextStreamEngine
  • org.apache.pdfbox.cos.COSArray
  • org.apache.pdfbox.cos.COSFloat
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