Java BoundingBox类代码示例

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
/**
 * Computes the bounding box from given Rectangle2D in device space units.
 * 
 * @param rect
 *          the chars string.
 * @param font
 *          the current font.
 * @param trm
 *          the current text rendering matrix.
 * @return the bounding box from given char string.
 */
protected Rectangle computeBoundingBox(BoundingBox rect, PDFont font,
    Matrix trm) {
  if (rect != null && font != null) {
    Matrix fontMatrix = font.getFontMatrix();
    
    Point ll = new SimplePoint(rect.getLowerLeftX(), rect.getLowerLeftY());
    Point ur = new SimplePoint(rect.getUpperRightX(), rect.getUpperRightY());

    // glyph space -> text space
    transform(ll, fontMatrix);
    transform(ur, fontMatrix);

    // text space -> device space
    transform(ll, trm);
    transform(ur, trm);
    
    return new SimpleRectangle(ll, ur);
  }
  return null;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
PDAppearanceStream createAppearanceStream(PDDocument document, float width, PDFont font, String backColorSettingOperation) throws IOException
{
    PDResources pdResources = new PDResources();
    String fontName = pdResources.addFont(font);
    PDStream pdStream = new PDStream(document);
    OutputStream os = pdStream.createOutputStream();
    String streamToBe = backColorSettingOperation + " 0 -5 " + width + " 25 re f /" + fontName + " 18 Tf 0 g BT (PDFBox) Tj ET";
    os.write(streamToBe.getBytes());
    os.close();
    
    PDXObjectForm xobject = new PDXObjectForm(pdStream);
    xobject.setResources(pdResources);
    xobject.setBBox(new PDRectangle(new BoundingBox(0, -5, width, 20)));
    xobject.setFormType(1);
    PDAppearanceStream normal = new PDAppearanceStream(xobject.getCOSStream());
    return normal;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
public static float getBoundingBoxDescent(PDFont font, float fontSize) {
    try {
        BoundingBox bBox = font.getBoundingBox();
        float boxDescent = bBox.getLowerLeftY();
        return (boxDescent / 1000) * fontSize;
    } catch (IOException e) {
        // fall through
    }
    return 0.0f;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
void clipPage(PDDocument document, PDPage page, BoundingBox clipBox) throws IOException
{
	PDPageContentStream pageContentStream = new PDPageContentStream(document, page, true, false);
	pageContentStream.addRect(clipBox.getLowerLeftX(), clipBox.getLowerLeftY(), clipBox.getWidth(), clipBox.getHeight());
	pageContentStream.clipPath(PathIterator.WIND_NON_ZERO);
	pageContentStream.close();

	COSArray newContents = new COSArray();
	COSStreamArray contents = (COSStreamArray) page.getContents().getStream();
	newContents.add(contents.get(contents.getStreamCount()-1));
	for (int i = 0; i < contents.getStreamCount()-1; i++)
	{
		newContents.add(contents.get(i));
	}
	page.setContents(new PDStream(new COSStreamArray(newContents)));
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
private BoundingBox generateBoundingBox()
{
    if (getFontDescriptor() != null)
    {
        PDRectangle bbox = getFontDescriptor().getFontBoundingBox();
        if (bbox.getLowerLeftX() != 0 || bbox.getLowerLeftY() != 0 || bbox.getUpperRightX() != 0
                || bbox.getUpperRightY() != 0)
        {
            return new BoundingBox(bbox.getLowerLeftX(), bbox.getLowerLeftY(),
                    bbox.getUpperRightX(), bbox.getUpperRightY());
        }
    }
    if (cidFont != null)
    {
        return cidFont.getFontBBox();
    }
    try
    {
        return t1Font.getFontBBox();
    }
    catch (IOException e)
    {
        return new BoundingBox();
    }
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
private BoundingBox generateBoundingBox()
{
    PDRectangle rect = getFontBBox();
    if (rect.getLowerLeftX() == 0 && rect.getLowerLeftY() == 0 && rect.getUpperRightX() == 0
            && rect.getUpperRightY() == 0)
    {
        // Plan B: get the max bounding box of the glyphs
        COSDictionary cp = getCharProcs();
        for (COSName name : cp.keySet())
        {
            COSBase base = cp.getDictionaryObject(name);
            if (base instanceof COSStream)
            {
                PDType3CharProc charProc = new PDType3CharProc(this, (COSStream) base);
                PDRectangle glyphBBox = charProc.getGlyphBBox();
                if (nonNull(glyphBBox))
                {
                    rect.setLowerLeftX(
                            Math.min(rect.getLowerLeftX(), glyphBBox.getLowerLeftX()));
                    rect.setLowerLeftY(
                            Math.min(rect.getLowerLeftY(), glyphBBox.getLowerLeftY()));
                    rect.setUpperRightX(
                            Math.max(rect.getUpperRightX(), glyphBBox.getUpperRightX()));
                    rect.setUpperRightY(
                            Math.max(rect.getUpperRightY(), glyphBBox.getUpperRightY()));
                }
            }
        }
    }
    return new BoundingBox(rect.getLowerLeftX(), rect.getLowerLeftY(), rect.getUpperRightX(),
            rect.getUpperRightY());
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
@Override
protected void writeString(String text, List<TextPosition> textPositions) throws IOException {
    text = text.toLowerCase();
    int index = text.indexOf(mTextToHighlight);
    if (index != -1) {
        PDPage currentPage = getCurrentPage();
        PDRectangle pageBoundingBox = currentPage.getBBox();
        AffineTransform flip = new AffineTransform();
        flip.translate(0, pageBoundingBox.getHeight());
        flip.scale(1, -1);
        PDRectangle mediaBox = currentPage.getMediaBox();
        float mediaHeight = mediaBox.getHeight();
        float mediaWidth = mediaBox.getWidth();
        int size = textPositions.size();
        while (index != -1) {
            int last = index + mTextToHighlight.length() - 1;
            for (int i = index; i <= last; i++) {
                TextPosition pos = textPositions.get(i);
                PDFont font = pos.getFont();
                BoundingBox bbox = font.getBoundingBox();
                Rectangle2D.Float rect = new Rectangle2D.Float(0, bbox.getLowerLeftY(), font.getWidth(pos.getCharacterCodes()[0]), bbox.getHeight());
                AffineTransform at = pos.getTextMatrix().createAffineTransform();
                if (font instanceof PDType3Font) {
                    at.concatenate(font.getFontMatrix().createAffineTransform());
                } else {
                    at.scale(1 / 1000f, 1 / 1000f);
                }
                Shape shape = flip.createTransformedShape(at.createTransformedShape(rect));
                AffineTransform transform = mGC.getTransform();
                int rotation = currentPage.getRotation();
                if (rotation != 0) {
                    switch (rotation) {
                        case 90:
                            mGC.translate(mediaHeight, 0);
                            break;
                        case 270:
                            mGC.translate(0, mediaWidth);
                            break;
                        case 180:
                            mGC.translate(mediaWidth, mediaHeight);
                            break;
                        default:
                            break;
                    }
                    mGC.rotate(Math.toRadians(rotation));
                }
                mGC.fill(shape);
                if (rotation != 0) {
                    mGC.setTransform(transform);
                }
            }
            index = last < size - 1 ? text.indexOf(mTextToHighlight, last + 1) : -1;
        }
    }
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
public static float getBoundingBoxAscent(PDFont font, float fontSize) {
    try {
        BoundingBox bBox = font.getBoundingBox();
        float boxAscent = bBox.getUpperRightY();
        return (boxAscent / 1000) * fontSize;
    } catch (IOException e) {
        // fall through
    }
    return 0.0f;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
/**
    * <a href="http://stackoverflow.com/questions/30616220/splitting-at-a-specific-point-in-pdfbox">
    * Splitting at a specific point in PDFBox
    * </a>
    * <p>
    * One way to achieve the task, i.e. to split a page at a certain point (i.e. all content above
    * a limit to be included and everything below to be excluded) would be to prepend a clip path.
    * This is implemented in {@link #clipPage(PDDocument, PDPage, BoundingBox)}.
    * </p>
    */
@Test
public void testTestTop() throws IOException, COSVisitorException
{
	try ( InputStream docStream = getClass().getResourceAsStream("/mkl/testarea/pdfbox1/sign/test.pdf") )
	{
		PDDocument document = PDDocument.load(docStream);
		PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(0);
		PDRectangle cropBox = page.findCropBox();
		clipPage(document, page, new BoundingBox(cropBox.getLowerLeftX(), cropBox.getLowerLeftY() + 650, cropBox.getUpperRightX(), cropBox.getUpperRightY()));
		document.save(new File(RESULT_FOLDER, "test-cropTop.pdf"));
		document.close();
	}

}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
@Override
public BoundingBox getBoundingBox() throws IOException
{
    if (fontBBox == null)
    {
        fontBBox = generateBoundingBox();
    }
    return fontBBox;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
private BoundingBox generateBoundingBox() throws IOException
{
    if (getFontDescriptor() != null)
    {
        PDRectangle bbox = getFontDescriptor().getFontBoundingBox();
        if (nonNull(bbox))
        {
            return new BoundingBox(bbox.getLowerLeftX(), bbox.getLowerLeftY(),
                    bbox.getUpperRightX(), bbox.getUpperRightY());
        }
    }
    return ttf.getFontBBox();
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
private BoundingBox generateBoundingBox() throws IOException
{
    if (getFontDescriptor() != null)
    {
        PDRectangle bbox = getFontDescriptor().getFontBoundingBox();
        if (nonNull(bbox) && bbox.getLowerLeftX() != 0 || bbox.getLowerLeftY() != 0
                || bbox.getUpperRightX() != 0 || bbox.getUpperRightY() != 0)
        {
            return new BoundingBox(bbox.getLowerLeftX(), bbox.getLowerLeftY(),
                    bbox.getUpperRightX(), bbox.getUpperRightY());
        }
    }
    return ttf.getFontBBox();
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
private BoundingBox generateBoundingBox() throws IOException
{
    if (getFontDescriptor() != null)
    {
        PDRectangle bbox = getFontDescriptor().getFontBoundingBox();
        if (nonNull(bbox) && bbox.getLowerLeftX() != 0 || bbox.getLowerLeftY() != 0
                || bbox.getUpperRightX() != 0 || bbox.getUpperRightY() != 0)
        {
            return new BoundingBox(bbox.getLowerLeftX(), bbox.getLowerLeftY(),
                    bbox.getUpperRightX(), bbox.getUpperRightY());
        }
    }
    return genericFont.getFontBBox();
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
@Override
public BoundingBox getBoundingBox()
{
    if (fontBBox == null)
    {
        fontBBox = generateBoundingBox();
    }
    return fontBBox;
}
 

import org.apache.fontbox.util.BoundingBox; //导入依赖的package包/类
/**
 * @param box the bounding box to be used for the rectangle
 */
public PDRectangle(BoundingBox box)
{
    rectArray.add(new COSFloat(box.getLowerLeftX()));
    rectArray.add(new COSFloat(box.getLowerLeftY()));
    rectArray.add(new COSFloat(box.getUpperRightX()));
    rectArray.add(new COSFloat(box.getUpperRightY()));
}