Examples with BoundingBox org.apache.fontbox.util.BoundingBox used on opensource projects

Example 6 with BoundingBox

use of org.apache.fontbox.util.BoundingBox in project pdfbox by apache.

the class AFMParser method parseFontMetric.

/**
 * This will parse a font metrics item.
 *
 * @return The parse font metrics item.
 *
 * @throws IOException If there is an error reading the AFM file.
 */
private FontMetrics parseFontMetric(boolean reducedDataset) throws IOException {
    FontMetrics fontMetrics = new FontMetrics();
    String startFontMetrics = readString();
    if (!START_FONT_METRICS.equals(startFontMetrics)) {
        throw new IOException("Error: The AFM file should start with " + START_FONT_METRICS + " and not '" + startFontMetrics + "'");
    }
    fontMetrics.setAFMVersion(readFloat());
    String nextCommand;
    boolean charMetricsRead = false;
    while (!END_FONT_METRICS.equals(nextCommand = readString())) {
        switch(nextCommand) {
            case FONT_NAME:
                fontMetrics.setFontName(readLine());
                break;
            case FULL_NAME:
                fontMetrics.setFullName(readLine());
                break;
            case FAMILY_NAME:
                fontMetrics.setFamilyName(readLine());
                break;
            case WEIGHT:
                fontMetrics.setWeight(readLine());
                break;
            case FONT_BBOX:
                BoundingBox bBox = new BoundingBox();
                bBox.setLowerLeftX(readFloat());
                bBox.setLowerLeftY(readFloat());
                bBox.setUpperRightX(readFloat());
                bBox.setUpperRightY(readFloat());
                fontMetrics.setFontBBox(bBox);
                break;
            case VERSION:
                fontMetrics.setFontVersion(readLine());
                break;
            case NOTICE:
                fontMetrics.setNotice(readLine());
                break;
            case ENCODING_SCHEME:
                fontMetrics.setEncodingScheme(readLine());
                break;
            case MAPPING_SCHEME:
                fontMetrics.setMappingScheme(readInt());
                break;
            case ESC_CHAR:
                fontMetrics.setEscChar(readInt());
                break;
            case CHARACTER_SET:
                fontMetrics.setCharacterSet(readLine());
                break;
            case CHARACTERS:
                fontMetrics.setCharacters(readInt());
                break;
            case IS_BASE_FONT:
                fontMetrics.setIsBaseFont(readBoolean());
                break;
            case V_VECTOR:
                float[] vector = new float[2];
                vector[0] = readFloat();
                vector[1] = readFloat();
                fontMetrics.setVVector(vector);
                break;
            case IS_FIXED_V:
                fontMetrics.setIsFixedV(readBoolean());
                break;
            case CAP_HEIGHT:
                fontMetrics.setCapHeight(readFloat());
                break;
            case X_HEIGHT:
                fontMetrics.setXHeight(readFloat());
                break;
            case ASCENDER:
                fontMetrics.setAscender(readFloat());
                break;
            case DESCENDER:
                fontMetrics.setDescender(readFloat());
                break;
            case STD_HW:
                fontMetrics.setStandardHorizontalWidth(readFloat());
                break;
            case STD_VW:
                fontMetrics.setStandardVerticalWidth(readFloat());
                break;
            case COMMENT:
                fontMetrics.addComment(readLine());
                break;
            case UNDERLINE_POSITION:
                fontMetrics.setUnderlinePosition(readFloat());
                break;
            case UNDERLINE_THICKNESS:
                fontMetrics.setUnderlineThickness(readFloat());
                break;
            case ITALIC_ANGLE:
                fontMetrics.setItalicAngle(readFloat());
                break;
            case CHAR_WIDTH:
                float[] widths = new float[2];
                widths[0] = readFloat();
                widths[1] = readFloat();
                fontMetrics.setCharWidth(widths);
                break;
            case IS_FIXED_PITCH:
                fontMetrics.setFixedPitch(readBoolean());
                break;
            case START_CHAR_METRICS:
                int countMetrics = readInt();
                List<CharMetric> charMetrics = new ArrayList<>(countMetrics);
                for (int i = 0; i < countMetrics; i++) {
                    CharMetric charMetric = parseCharMetric();
                    charMetrics.add(charMetric);
                }
                String endCharMetrics = readString();
                if (!endCharMetrics.equals(END_CHAR_METRICS)) {
                    throw new IOException("Error: Expected '" + END_CHAR_METRICS + "' actual '" + endCharMetrics + "'");
                }
                charMetricsRead = true;
                fontMetrics.setCharMetrics(charMetrics);
                break;
            case START_COMPOSITES:
                if (!reducedDataset) {
                    int countComposites = readInt();
                    for (int i = 0; i < countComposites; i++) {
                        Composite part = parseComposite();
                        fontMetrics.addComposite(part);
                    }
                    String endComposites = readString();
                    if (!endComposites.equals(END_COMPOSITES)) {
                        throw new IOException("Error: Expected '" + END_COMPOSITES + "' actual '" + endComposites + "'");
                    }
                }
                break;
            case START_KERN_DATA:
                if (!reducedDataset) {
                    parseKernData(fontMetrics);
                }
                break;
            default:
                if (reducedDataset && charMetricsRead) {
                    break;
                }
                throw new IOException("Unknown AFM key '" + nextCommand + "'");
        }
    }
    return fontMetrics;
}

Example 7 with BoundingBox

use of org.apache.fontbox.util.BoundingBox in project pdfbox by apache.

the class GlyphData method initData.

/**
 * This will read the required data from the stream.
 *
 * @param glyphTable The glyph table this glyph belongs to.
 * @param data The stream to read the data from.
 * @param leftSideBearing The left side bearing for this glyph.
 * @throws IOException If there is an error reading the data.
 */
public void initData(GlyphTable glyphTable, TTFDataStream data, int leftSideBearing) throws IOException {
    numberOfContours = data.readSignedShort();
    xMin = data.readSignedShort();
    yMin = data.readSignedShort();
    xMax = data.readSignedShort();
    yMax = data.readSignedShort();
    boundingBox = new BoundingBox(xMin, yMin, xMax, yMax);
    if (numberOfContours >= 0) {
        // create a simple glyph
        short x0 = (short) (leftSideBearing - xMin);
        glyphDescription = new GlyfSimpleDescript(numberOfContours, data, x0);
    } else {
        // create a composite glyph
        glyphDescription = new GlyfCompositeDescript(data, glyphTable);
    }
}

Example 8 with BoundingBox

use of org.apache.fontbox.util.BoundingBox in project pdfbox by apache.

the class LayerUtility method importPageAsForm.

/**
 * Imports a page from some PDF file as a Form XObject so it can be placed on another page
 * in the target document.
 * <p>
 * You may want to call {@link #wrapInSaveRestore(PDPage) wrapInSaveRestore(PDPage)} before invoking the Form XObject to
 * make sure that the graphics state is reset.
 *
 * @param sourceDoc the source PDF document that contains the page to be copied
 * @param page the page in the source PDF document to be copied
 * @return a Form XObject containing the original page's content
 * @throws IOException if an I/O error occurs
 */
public PDFormXObject importPageAsForm(PDDocument sourceDoc, PDPage page) throws IOException {
    importOcProperties(sourceDoc);
    PDStream newStream = new PDStream(targetDoc, page.getContents(), COSName.FLATE_DECODE);
    PDFormXObject form = new PDFormXObject(newStream);
    // Copy resources
    PDResources pageRes = page.getResources();
    PDResources formRes = new PDResources();
    cloner.cloneMerge(pageRes, formRes);
    form.setResources(formRes);
    // Transfer some values from page to form
    transferDict(page.getCOSObject(), form.getCOSObject(), PAGE_TO_FORM_FILTER, true);
    Matrix matrix = form.getMatrix();
    AffineTransform at = matrix.createAffineTransform();
    PDRectangle mediaBox = page.getMediaBox();
    PDRectangle cropBox = page.getCropBox();
    PDRectangle viewBox = (cropBox != null ? cropBox : mediaBox);
    // Handle the /Rotation entry on the page dict
    int rotation = page.getRotation();
    // Transform to FOP's user space
    // at.scale(1 / viewBox.getWidth(), 1 / viewBox.getHeight());
    at.translate(mediaBox.getLowerLeftX() - viewBox.getLowerLeftX(), mediaBox.getLowerLeftY() - viewBox.getLowerLeftY());
    switch(rotation) {
        case 90:
            at.scale(viewBox.getWidth() / viewBox.getHeight(), viewBox.getHeight() / viewBox.getWidth());
            at.translate(0, viewBox.getWidth());
            at.rotate(-Math.PI / 2.0);
            break;
        case 180:
            at.translate(viewBox.getWidth(), viewBox.getHeight());
            at.rotate(-Math.PI);
            break;
        case 270:
            at.scale(viewBox.getWidth() / viewBox.getHeight(), viewBox.getHeight() / viewBox.getWidth());
            at.translate(viewBox.getHeight(), 0);
            at.rotate(-Math.PI * 1.5);
            break;
        default:
    }
    // Compensate for Crop Boxes not starting at 0,0
    at.translate(-viewBox.getLowerLeftX(), -viewBox.getLowerLeftY());
    if (!at.isIdentity()) {
        form.setMatrix(at);
    }
    BoundingBox bbox = new BoundingBox();
    bbox.setLowerLeftX(viewBox.getLowerLeftX());
    bbox.setLowerLeftY(viewBox.getLowerLeftY());
    bbox.setUpperRightX(viewBox.getUpperRightX());
    bbox.setUpperRightY(viewBox.getUpperRightY());
    form.setBBox(new PDRectangle(bbox));
    return form;
}

Example 9 with BoundingBox

use of org.apache.fontbox.util.BoundingBox in project pdfbox by apache.

the class DrawPrintTextLocations method calculateGlyphBounds.

// this calculates the real (except for type 3 fonts) individual glyph bounds
private Shape calculateGlyphBounds(Matrix textRenderingMatrix, PDFont font, int code) throws IOException {
    GeneralPath path = null;
    AffineTransform at = textRenderingMatrix.createAffineTransform();
    at.concatenate(font.getFontMatrix().createAffineTransform());
    if (font instanceof PDType3Font) {
        // It is difficult to calculate the real individual glyph bounds for type 3 fonts
        // because these are not vector fonts, the content stream could contain almost anything
        // that is found in page content streams.
        PDType3Font t3Font = (PDType3Font) font;
        PDType3CharProc charProc = t3Font.getCharProc(code);
        if (charProc != null) {
            BoundingBox fontBBox = t3Font.getBoundingBox();
            PDRectangle glyphBBox = charProc.getGlyphBBox();
            if (glyphBBox != null) {
                // PDFBOX-3850: glyph bbox could be larger than the font bbox
                glyphBBox.setLowerLeftX(Math.max(fontBBox.getLowerLeftX(), glyphBBox.getLowerLeftX()));
                glyphBBox.setLowerLeftY(Math.max(fontBBox.getLowerLeftY(), glyphBBox.getLowerLeftY()));
                glyphBBox.setUpperRightX(Math.min(fontBBox.getUpperRightX(), glyphBBox.getUpperRightX()));
                glyphBBox.setUpperRightY(Math.min(fontBBox.getUpperRightY(), glyphBBox.getUpperRightY()));
                path = glyphBBox.toGeneralPath();
            }
        }
    } else if (font instanceof PDVectorFont) {
        PDVectorFont vectorFont = (PDVectorFont) font;
        path = vectorFont.getPath(code);
        if (font instanceof PDTrueTypeFont) {
            PDTrueTypeFont ttFont = (PDTrueTypeFont) font;
            int unitsPerEm = ttFont.getTrueTypeFont().getHeader().getUnitsPerEm();
            at.scale(1000d / unitsPerEm, 1000d / unitsPerEm);
        }
        if (font instanceof PDType0Font) {
            PDType0Font t0font = (PDType0Font) font;
            if (t0font.getDescendantFont() instanceof PDCIDFontType2) {
                int unitsPerEm = ((PDCIDFontType2) t0font.getDescendantFont()).getTrueTypeFont().getHeader().getUnitsPerEm();
                at.scale(1000d / unitsPerEm, 1000d / unitsPerEm);
            }
        }
    } else if (font instanceof PDSimpleFont) {
        PDSimpleFont simpleFont = (PDSimpleFont) font;
        // these two lines do not always work, e.g. for the TT fonts in file 032431.pdf
        // which is why PDVectorFont is tried first.
        String name = simpleFont.getEncoding().getName(code);
        path = simpleFont.getPath(name);
    } else {
        // shouldn't happen, please open issue in JIRA
        System.out.println("Unknown font class: " + font.getClass());
    }
    if (path == null) {
        return null;
    }
    return at.createTransformedShape(path.getBounds2D());
}