Examples with PDAppearanceContentStream org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceContentStream used on opensource projects

Example 11 with PDAppearanceContentStream

use of org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceContentStream in project pdfbox by apache.

the class PDPolygonAppearanceHandler method generateNormalAppearance.

@Override
public void generateNormalAppearance() {
    PDAnnotationPolygon annotation = (PDAnnotationPolygon) getAnnotation();
    float lineWidth = getLineWidth();
    PDRectangle rect = annotation.getRectangle();
    // Adjust rectangle even if not empty
    // CTAN-example-Annotations.pdf p2
    float minX = Float.MAX_VALUE;
    float minY = Float.MAX_VALUE;
    float maxX = Float.MIN_VALUE;
    float maxY = Float.MIN_VALUE;
    float[][] pathArray = getPathArray(annotation);
    if (pathArray == null) {
        return;
    }
    for (int i = 0; i < pathArray.length; ++i) {
        for (int j = 0; j < pathArray[i].length / 2; ++j) {
            float x = pathArray[i][j * 2];
            float y = pathArray[i][j * 2 + 1];
            minX = Math.min(minX, x);
            minY = Math.min(minY, y);
            maxX = Math.max(maxX, x);
            maxY = Math.max(maxY, y);
        }
    }
    rect.setLowerLeftX(Math.min(minX - lineWidth / 2, rect.getLowerLeftX()));
    rect.setLowerLeftY(Math.min(minY - lineWidth / 2, rect.getLowerLeftY()));
    rect.setUpperRightX(Math.max(maxX + lineWidth, rect.getUpperRightX()));
    rect.setUpperRightY(Math.max(maxY + lineWidth, rect.getUpperRightY()));
    annotation.setRectangle(rect);
    try {
        try (PDAppearanceContentStream contentStream = getNormalAppearanceAsContentStream()) {
            boolean hasStroke = contentStream.setStrokingColorOnDemand(getColor());
            boolean hasBackground = contentStream.setNonStrokingColorOnDemand(annotation.getInteriorColor());
            handleOpacity(annotation.getConstantOpacity());
            contentStream.setBorderLine(lineWidth, annotation.getBorderStyle());
            // setBorderLine(), or use AnnotationBorder class
            if (annotation.getBorderStyle() == null) {
                COSArray border = annotation.getBorder();
                if (border.size() > 3 && border.getObject(3) instanceof COSArray) {
                    contentStream.setLineDashPattern(((COSArray) border.getObject(3)).toFloatArray(), 0);
                }
            }
            // the differences rectangle
            // TODO: this only works for border effect solid. Cloudy needs a
            // different approach.
            setRectDifference(lineWidth);
            for (int i = 0; i < pathArray.length; i++) {
                float[] pointsArray = pathArray[i];
                // first array shall be of size 2 and specify the moveto operator
                if (i == 0 && pointsArray.length == 2) {
                    contentStream.moveTo(pointsArray[0], pointsArray[1]);
                } else {
                    // entries of length 2 shall be treated as lineto operator
                    if (pointsArray.length == 2) {
                        contentStream.lineTo(pointsArray[0], pointsArray[1]);
                    } else if (pointsArray.length == 6) {
                        contentStream.curveTo(pointsArray[0], pointsArray[1], pointsArray[2], pointsArray[3], pointsArray[4], pointsArray[5]);
                    }
                }
            }
            contentStream.drawShape(lineWidth, hasStroke, hasBackground);
        }
    } catch (IOException e) {
        LOG.error(e);
    }
}

Example 12 with PDAppearanceContentStream

use of org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceContentStream in project pdfbox by apache.

the class PDSquareAppearanceHandler method generateNormalAppearance.

@Override
public void generateNormalAppearance() {
    float lineWidth = getLineWidth();
    try {
        PDAnnotationSquare annotation = (PDAnnotationSquare) getAnnotation();
        try (PDAppearanceContentStream contentStream = getNormalAppearanceAsContentStream()) {
            boolean hasStroke = contentStream.setStrokingColorOnDemand(getColor());
            boolean hasBackground = contentStream.setNonStrokingColorOnDemand(annotation.getInteriorColor());
            handleOpacity(annotation.getConstantOpacity());
            contentStream.setBorderLine(lineWidth, annotation.getBorderStyle());
            // handle the border box
            // 
            // There are two options. The handling is not part of the PDF specification but
            // implementation specific to Adobe Reader
            // - if /RD is set the border box is the /Rect entry inset by the respective
            // border difference.
            // - if /RD is not set the border box is defined by the /Rect entry. The /RD entry will
            // be set to be the line width and the /Rect is enlarged by the /RD amount
            PDRectangle borderBox = null;
            float[] rectDifferences = annotation.getRectDifferences();
            if (rectDifferences.length == 0) {
                borderBox = getPaddedRectangle(getRectangle(), lineWidth / 2);
                // the differences rectangle
                // TODO: this only works for border effect solid. Cloudy needs a different approach.
                annotation.setRectDifferences(lineWidth / 2);
                annotation.setRectangle(addRectDifferences(getRectangle(), annotation.getRectDifferences()));
                // when the normal appearance stream was generated BBox and Matrix have been set to the
                // values of the original /Rect. As the /Rect was changed that needs to be adjusted too.
                annotation.getNormalAppearanceStream().setBBox(getRectangle());
                AffineTransform transform = AffineTransform.getTranslateInstance(-getRectangle().getLowerLeftX(), -getRectangle().getLowerLeftY());
                annotation.getNormalAppearanceStream().setMatrix(transform);
            } else {
                borderBox = applyRectDifferences(getRectangle(), rectDifferences);
                borderBox = getPaddedRectangle(borderBox, lineWidth / 2);
            }
            contentStream.addRect(borderBox.getLowerLeftX(), borderBox.getLowerLeftY(), borderBox.getWidth(), borderBox.getHeight());
            contentStream.drawShape(lineWidth, hasStroke, hasBackground);
        }
    } catch (IOException e) {
        LOG.error(e);
    }
}

Example 13 with PDAppearanceContentStream

use of org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceContentStream in project pdfbox by apache.

the class PDUnderlineAppearanceHandler method generateNormalAppearance.

@Override
public void generateNormalAppearance() {
    PDAnnotationUnderline annotation = (PDAnnotationUnderline) getAnnotation();
    PDRectangle rect = annotation.getRectangle();
    float[] pathsArray = annotation.getQuadPoints();
    if (pathsArray == null) {
        return;
    }
    AnnotationBorder ab = AnnotationBorder.getAnnotationBorder(annotation, annotation.getBorderStyle());
    PDColor color = annotation.getColor();
    if (color == null || color.getComponents().length == 0) {
        return;
    }
    if (Float.compare(ab.width, 0) == 0) {
        // value found in adobe reader
        ab.width = 1.5f;
    }
    // Adjust rectangle even if not empty, see PLPDF.com-MarkupAnnotations.pdf
    // TODO in a class structure this should be overridable
    // this is similar to polyline but different data type
    // all coordinates (unlike painting) are used because I'm lazy
    float minX = Float.MAX_VALUE;
    float minY = Float.MAX_VALUE;
    float maxX = Float.MIN_VALUE;
    float maxY = Float.MIN_VALUE;
    for (int i = 0; i < pathsArray.length / 2; ++i) {
        float x = pathsArray[i * 2];
        float y = pathsArray[i * 2 + 1];
        minX = Math.min(minX, x);
        minY = Math.min(minY, y);
        maxX = Math.max(maxX, x);
        maxY = Math.max(maxY, y);
    }
    rect.setLowerLeftX(Math.min(minX - ab.width / 2, rect.getLowerLeftX()));
    rect.setLowerLeftY(Math.min(minY - ab.width / 2, rect.getLowerLeftY()));
    rect.setUpperRightX(Math.max(maxX + ab.width, rect.getUpperRightX()));
    rect.setUpperRightY(Math.max(maxY + ab.width, rect.getUpperRightY()));
    annotation.setRectangle(rect);
    try {
        try (PDAppearanceContentStream cs = getNormalAppearanceAsContentStream()) {
            handleOpacity(annotation.getConstantOpacity());
            cs.setStrokingColor(color);
            if (ab.dashArray != null) {
                cs.setLineDashPattern(ab.dashArray, 0);
            }
            cs.setLineWidth(ab.width);
            // https://stackoverflow.com/questions/9855814/pdf-spec-vs-acrobat-creation-quadpoints
            for (int i = 0; i < pathsArray.length / 8; ++i) {
                // only lower coords are used
                cs.moveTo(pathsArray[i * 8 + 4], pathsArray[i * 8 + 5]);
                cs.lineTo(pathsArray[i * 8 + 6], pathsArray[i * 8 + 7]);
            }
            cs.stroke();
        }
    } catch (IOException ex) {
        LOG.error(ex);
    }
}