Java Image.scaleToFit方法代码示例

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public void createPdf(String filename) throws DocumentException, IOException {

		Document document = new Document(PageSize.LETTER);
		PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filename));

		// TODO: force iText to respect the order in which content is added
		writer.setStrictImageSequence(true);

		document.open();

		// step 4 - add content into document
		String[] imageNames = { "35_Cal_Crutchlow.jpg", "38_Bradley_Smith.jpg", "46_Valentino_Rossi.jpg",
				"99_Jorge_Lorenzo.jpg" };
		for (int i = 0; i < 4; i++) {

			Image image = Image.getInstance("resources/img/" + imageNames[i]);

			// TODO: scale image
			image.scaleToFit(500, 500); // scale size

			document.add(image);
			document.add(new Paragraph(imageNames[i]));
		}

		document.close();
	}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
/**
 * adds an image to the document.
 * 
 * @param doc
 * @param iji
 * @return
 * @throws InterruptedException
 * @throws ExecutionException
 * @throws IOException
 * @throws DocumentException
 */
public Document addImage(Document doc, ImageJobDescription iji)
		throws InterruptedException, ExecutionException, IOException,
		DocumentException {
	// create image worker
	ImageWorker job = new ImageWorker(dlConfig, iji);
	// submit
	Future<DocuImage> jobTicket = imageJobCenter.submit(job);
	// wait for result
	DocuImage img = jobTicket.get();
	// scale the image
	Image pdfimg = Image.getInstance(img.getAwtImage(), null);
	float docW = PageSize.A4.getWidth() - 2 * PageSize.A4.getBorder();
	float docH = PageSize.A4.getHeight() - 2 * PageSize.A4.getBorder();
	// fit the image to the page
	pdfimg.scaleToFit(docW, docH);
	// add to PDF
	doc.add(pdfimg);
	return doc;
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public String savePageAsPdf(boolean scaled) throws IOException, DocumentException
{
	String pdfName = "";

	// Define test screenshot root
	String test = "";
	if (TestNamingUtil.isTestNameRegistered()) {
		test = TestNamingUtil.getTestNameByThread();
	} else {
		test = "undefined";
	}
	
	File testRootDir = ReportContext.getTestDir();
	File artifactsFolder = ReportContext.getArtifactsFolder();

	String fileID = test.replaceAll("\\W+", "_") + "-" + System.currentTimeMillis();
	pdfName = fileID + ".pdf";

	String fullPdfPath = artifactsFolder.getAbsolutePath() + "/" + pdfName;
	// TODO: test this implementation and change back to capture if necessary
	Image image = Image.getInstance(testRootDir.getAbsolutePath() + "/" + Screenshot.captureFailure(driver, ""));
	Document document = null;
	if (scaled)
	{
		document = new Document(PageSize.A4, 10, 10, 10, 10);
		if (image.getHeight() > (document.getPageSize().getHeight() - 20)
				|| image.getScaledWidth() > (document.getPageSize().getWidth() - 20))
		{
			image.scaleToFit(document.getPageSize().getWidth() - 20, document.getPageSize().getHeight() - 20);
		}
	} else
	{
		document = new Document(new RectangleReadOnly(image.getScaledWidth(), image.getScaledHeight()));
	}
	PdfWriter.getInstance(document, new FileOutputStream(fullPdfPath));
	document.open();
	document.add(image);
	document.close();
	return fullPdfPath;
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
/**
 * 將排序過的圖片轉成PDF
 * 
 * @param pageSize
 *            pdf的文件大小:A4 or B3 etc...
 * @param sourceFolderPath
 *            圖片所在的資料夾路徑
 * @param pathList
 *            排序過的圖片列表
 * @param targetPdfPath
 *            要儲存的的PDF路徑
 * @return
 * @throws Exception
 */
public static boolean comicFolderToPDF(Rectangle pageSize,
		String sourceFolderPath, ArrayList<String> pathList,
		String targetPdfPath) throws Exception {
	boolean result = false;
	Document document = new Document(pageSize);

	PdfWriter writer = PdfWriter.getInstance(document,
			new FileOutputStream(targetPdfPath));
	writer.setPageEvent(new HeaderFooter(14));
	document.open();

	for (String filename : pathList) {
		String filePath = sourceFolderPath + File.separator + filename;
		document.newPage();

		Image img = Image.getInstance(filePath);
		img.scaleToFit(pageSize.getWidth() - 20, pageSize.getHeight());
		img.setBorderColor(BaseColor.WHITE);

		document.add(img);
	}
	result = true;
	document.close();

	return result;
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
private void dataTableTitile(Document documento, String data) throws IOException, BadElementException, DocumentException {
    
   try {
       pTableEmpresaPricipal = new PdfPTable(new float[]{15f, 85f});
       pTableEmpresaInforImpres1 = new PdfPTable(1);
       pTableEmpresaInforImpres5 = new PdfPTable(1);
       
       PdfPCell pCellNomeEmpresa = new PdfPCell(new Phrase(Empresa.NOME, fontCabecalhoNG));
       pCellNomeEmpresa.setBorder(0);
       PdfPCell pCellNomeEndereco = new PdfPCell(new Phrase(Empresa.ENDERECO, fontCabecalhoN));
       pCellNomeEndereco.setBorder(0);
       PdfPCell pCellCaixaPostal = new PdfPCell(new Phrase(Empresa.CAIXAPOSTAL, fontCabecalhoN));
       pCellCaixaPostal.setBorder(0);
       PdfPCell pCellTeleFax = new PdfPCell(new Phrase(Empresa.TELEFAX + " " + ConfigDoc.Empresa.EMAIL, fontCabecalhoN));
       pCellTeleFax.setBorder(0);
       PdfPCell pCellSociedade = new PdfPCell(new Phrase(Empresa.SOCIEDADE, fontCabecalhoN));
       pCellSociedade.setBorder(0);
       Image imageEmpresa = Image.getInstance("logo.png");
       imageEmpresa.scaleToFit(120f, 85f);
       pTableEmpresaInforImpres1.addCell(pCellNomeEmpresa);
       pTableEmpresaInforImpres1.addCell(pCellNomeEndereco);
       pTableEmpresaInforImpres1.addCell(pCellCaixaPostal);
       pTableEmpresaInforImpres1.addCell(pCellTeleFax);
       pTableEmpresaInforImpres1.addCell(pCellSociedade);
       PdfPCell cellTabela3 = new PdfPCell(pTableEmpresaInforImpres1);
       cellTabela3.setBorder(0);
       pTableEmpresaInforImpres5.addCell(cellTabela3);
       PdfPCell cellTabela5 = new PdfPCell(pTableEmpresaInforImpres5);
       cellTabela5.setBorder(0);
       PdfPCell cellTabela6 = new PdfPCell(imageEmpresa);
       cellTabela6.setBorder(0);
       pTableEmpresaPricipal.setWidthPercentage(95);
       pTableEmpresaPricipal.addCell(cellTabela6);
       pTableEmpresaPricipal.addCell(cellTabela5);
       PdfPTable pTableTitulo = new PdfPTable(1);
       pTableTitulo.setHorizontalAlignment(Element.ALIGN_CENTER);
       pTableTitulo.setWidthPercentage(100);
       
       SimpleDateFormat sdfEsp = new SimpleDateFormat("MMMM, yyyy", Locale.ENGLISH);
       SimpleDateFormat sdf = new SimpleDateFormat("MM-yyyy");
       PdfPCell cellTitulo = new PdfPCell(new Phrase("TOTAL PREMIUM COLLECTED ON TRAVEL INSURANCE AND TAXES FOR "+sdfEsp.format(sdf.parse(data)).toUpperCase(), fontCorpoNG));
       cellTitulo.setBorder(0);
       cellTitulo.setPaddingBottom(10f);
       pTableTitulo.addCell(cellTitulo);
       
       pTableEmpresaPricipal.setHorizontalAlignment(Element.ALIGN_CENTER);
       
       documento.add(pTableEmpresaPricipal);
       documento.add(pTableNull);
       documento.add(pTableTitulo);
   } catch (ParseException ex) {
       Logger.getLogger(ExporOnlyViagemPdf.class.getName()).log(Level.SEVERE, null, ex);
   }
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public void tiff2Pdf(File singleTifFile, File pdfFile) {

		// based on tiff2pdf from itext toolbox 0.0.2
		// (cfr.http://itexttoolbox.sourceforge.net/doku.php?id=download&DokuWiki=
		// ecde1bfec0b8cca87dd8c6c042183992)
		try {
			RandomAccessFileOrArray ra = new RandomAccessFileOrArray(
					singleTifFile.getAbsolutePath());
			// RandomAccessFileOrArray ra = new
			// RandomAccessFileOrArray(tempByteArray);
			int comps = TiffImage.getNumberOfPages(ra);

			Document document = new Document(PageSize.A4);
			float width = PageSize.A4.getWidth();
			float height = PageSize.A4.getHeight();
			Image img = TiffImage.getTiffImage(ra, 1);

			document.setPageSize(PageSize.A4);

			PdfWriter writer = PdfWriter.getInstance(document,
					new FileOutputStream(pdfFile));

			// pdf/a
			// from
			// http://www.opensubscriber.com/message/[email protected]
			// .net/7593470.html

			// check that it is really pdf/a:
			// http://www.intarsys.de/produkte/pdf-a-live/pdf-a-check-1
			// => 2 warnings
			// Keine eindeutige ID gefunden
			// Kein History-Eintrag vorhanden
			writer.setPDFXConformance(PdfWriter.PDFA1B);
			document.open();

			PdfDictionary outi = new PdfDictionary(PdfName.OUTPUTINTENT);
			outi.put(PdfName.OUTPUTCONDITIONIDENTIFIER, new PdfString(
					"sRGB IEC61966-2.1"));
			outi.put(PdfName.INFO, new PdfString("sRGB IEC61966-2.1"));
			outi.put(PdfName.S, PdfName.GTS_PDFA1);
			ICC_Profile icc = ICC_Profile.getInstance(Thread.currentThread()
					.getContextClassLoader().getResourceAsStream(
							"/srgb.profile"));
			PdfICCBased ib = new PdfICCBased(icc);
			ib.remove(PdfName.ALTERNATE);
			outi.put(PdfName.DESTOUTPUTPROFILE, writer.addToBody(ib)
					.getIndirectReference());
			writer.getExtraCatalog().put(PdfName.OUTPUTINTENTS,
					new PdfArray(outi));

			PdfContentByte cb = writer.getDirectContent();
			for (int c = 0; c < comps; ++c) {
				img = TiffImage.getTiffImage(ra, c + 1);
				if (img != null) {
						document.setPageSize(PageSize.A4);
						document.newPage();
						img.setAbsolutePosition(0, 0);
						img.scaleToFit(width, height);
				
					cb.addImage(img);
					logger.debug("Finished page " + (c + 1));
				}
			}
			ra.close();

			writer.createXmpMetadata();// pdfa
			document.close();
		} catch (Throwable e) {
			// catch Throwable because we encountere a java.lang.InternalError
			// cfr. http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6503430
			// probably better to move to later java version for poller
			logger.error("Pdf not created", e);
		}
	}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
private void generatePdf() {
    try {
        showProgressBar();
        verifyStoragePermissions(this);
        final String path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + getResources().getString(R.string.folder_name) + File.separator + "eReceipt-" + transactionId + ".pdf";
        Document document = new Document();
        PdfWriter.getInstance(document, new FileOutputStream(path));
        document.open();
        Bitmap bitmap = Bitmap.createBitmap(
                llall.getWidth(),
                llall.getHeight(),
                Bitmap.Config.ARGB_8888);


        Canvas c = new Canvas(bitmap);
        llall.draw(c);

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
        byte[] imageInByte = stream.toByteArray();
        Image myImage = Image.getInstance(imageInByte);
        float documentWidth = document.getPageSize().getWidth();
        float documentHeight = document.getPageSize().getHeight() - document.topMargin() - document.bottomMargin();
        myImage.scaleToFit(documentWidth, documentHeight);
        myImage.setAlignment(Image.ALIGN_CENTER | Image.MIDDLE);
        document.add(myImage);
        document.close();
        this.runOnUiThread(new Runnable() {
            public void run() {
                Intent email = new Intent(Intent.ACTION_SEND);
                Uri uri = Uri.fromFile(new File(path));
                email.putExtra(Intent.EXTRA_STREAM, uri);
                email.putExtra(Intent.EXTRA_SUBJECT, "eReceipt " + date);
                email.setType("application/pdf");
                email.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(email);
            }
        });
        hideProgressBar();
    } catch (Exception e) {
        Log.e(TAG, "Exception while tryig to share receipt info. Msg: " + e.getMessage());
    }
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
/**
 * The <code>addImageToPdf</code> method is used to add image to pdf and make it searchable by adding image text in invisible mode
 * w.r.t parameter 'isPdfSearchable' passed.
 * 
 * @param pdfWriter {@link PdfWriter} writer of pdf in which image has to be added
 * @param htmlUrl {@link HocrPage} corresponding html file for fetching text and coordinates
 * @param imageUrl {@link String} url of image to be added in pdf
 * @param isPdfSearchable true for searchable pdf else otherwise
 * @param widthOfLine
 */
private void addImageToPdf(PdfWriter pdfWriter, HocrPage hocrPage, String imageUrl, boolean isPdfSearchable, final int widthOfLine) {
	if (null != pdfWriter && null != imageUrl && imageUrl.length() > 0) {
		try {
			LOGGER.info("Adding image" + imageUrl + " to pdf using iText");
			Image pageImage = Image.getInstance(imageUrl);
			float dotsPerPointX = pageImage.getDpiX() / PDF_RESOLUTION;
			float dotsPerPointY = pageImage.getDpiY() / PDF_RESOLUTION;
			PdfContentByte pdfContentByte = pdfWriter.getDirectContent();

			pageImage.scaleToFit(pageImage.getWidth() / dotsPerPointX, pageImage.getHeight() / dotsPerPointY);

			pageImage.setAbsolutePosition(0, 0);

			// Add image to pdf
			pdfWriter.getDirectContentUnder().addImage(pageImage);
			pdfWriter.getDirectContentUnder().add(pdfContentByte);

			// If pdf is to be made searchable
			if (isPdfSearchable) {
				LOGGER.info("Adding invisible text for image: " + imageUrl);
				float pageImagePixelHeight = pageImage.getHeight();
				Font defaultFont = FontFactory.getFont(FontFactory.HELVETICA, 8, Font.BOLD, CMYKColor.BLACK);

				// Fetch text and coordinates for image to be added
				Map<String, int[]> textCoordinatesMap = getTextWithCoordinatesMap(hocrPage, widthOfLine);
				Set<String> ketSet = textCoordinatesMap.keySet();

				// Add text at specific location
				for (String key : ketSet) {
					int[] coordinates = textCoordinatesMap.get(key);
					float bboxWidthPt = (coordinates[2] - coordinates[0]) / dotsPerPointX;
					float bboxHeightPt = (coordinates[3] - coordinates[1]) / dotsPerPointY;
					pdfContentByte.beginText();

					// To make text added as invisible
					pdfContentByte.setTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_INVISIBLE);
					pdfContentByte.setLineWidth(Math.round(bboxWidthPt));

					// Ceil is used so that minimum font of any text is 1
					// For exception of unbalanced beginText() and endText()
					if (bboxHeightPt > 0.0) {
						pdfContentByte.setFontAndSize(defaultFont.getBaseFont(), (float) Math.ceil(bboxHeightPt));
					} else {
						pdfContentByte.setFontAndSize(defaultFont.getBaseFont(), 1);
					}
					float xCoordinate = (float) (coordinates[0] / dotsPerPointX);
					float yCoordinate = (float) ((pageImagePixelHeight - coordinates[3]) / dotsPerPointY);
					pdfContentByte.moveText(xCoordinate, yCoordinate);
					pdfContentByte.showText(key);
					pdfContentByte.endText();
				}
			}
			pdfContentByte.closePath();
		} catch (BadElementException badElementException) {
			LOGGER
					.error("Error occurred while adding image" + imageUrl + " to pdf using Itext: "
							+ badElementException.toString());
		} catch (DocumentException documentException) {
			LOGGER.error("Error occurred while adding image" + imageUrl + " to pdf using Itext: " + documentException.toString());
		} catch (MalformedURLException malformedURLException) {
			LOGGER.error("Error occurred while adding image" + imageUrl + " to pdf using Itext: "
					+ malformedURLException.toString());
		} catch (IOException ioException) {
			LOGGER.error("Error occurred while adding image" + imageUrl + " to pdf using Itext: " + ioException.toString());
		}
	}
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
@Override
protected Exception doInBackground(String... photos) {
    try {
        // Get output Directory
        // Create the PDF and set some metadata
        Document document = new Document(PageSize.A4, DOCUMENT_MARGIN, DOCUMENT_MARGIN, DOCUMENT_MARGIN, DOCUMENT_MARGIN);
        Resources resources = mContext.getResources();
        document.addTitle(mFilename);
        document.addAuthor(resources.getString(R.string.app_name));
        document.addSubject(resources.getString(R.string.file_subject));
        // Open the file that we will write the pdf to.
        java.io.File fileContent = new java.io.File(ImageUtils.getAlbumStorageDir(MainActivity.ALBUM_NAME) + mFilename);
        OutputStream outputStream = new FileOutputStream(fileContent);
        PdfWriter.getInstance(document, outputStream);
        document.open();
        // Get the document's size
        Rectangle pageSize = document.getPageSize();
        float pageWidth = pageSize.getWidth() - (document.leftMargin() + document.rightMargin());
        float pageHeight = pageSize.getHeight();
        //Loop through images and add them to the document
        for (String path : photos) {
            Image image = Image.getInstance(path);
            image.scaleToFit(pageWidth, pageHeight);
            document.add(image);
            document.newPage();
        }
        // Cleanup
        document.close();
        outputStream.close();
        // Upload time!
        FileContent mediaContent = new FileContent("application/pdf", fileContent);
        File body = new File();
        if (mFolder != null)
            body.setParents(Arrays.asList(new ParentReference().setId(mFolder.getId())));
        body.setTitle(mFilename);
        body.setDescription(resources.getString(R.string.file_subject));
        body.setMimeType("application/pdf");
        Drive.Files.Insert insert = mService.files().insert(body, mediaContent);
        MediaHttpUploader uploader = insert.getMediaHttpUploader();
        uploader.setDirectUploadEnabled(false);
        uploader.setChunkSize(MediaHttpUploader.MINIMUM_CHUNK_SIZE);
        uploader.setProgressListener(new FileProgressListener());
        File file = insert.execute();
        Log.d("C2P", "File Id: " + file.getId());
        /* Database Code */
        DateFormat format = new SimpleDateFormat("MM/dd/yyyy");
        Date date = new Date();
        //file.getFileSize().toString()
        String parentFolder = mFolder != null ? mFolder.getId() : "root";
        Long size = file.getFileSize();
        String fileSizeString = humanReadableByteCount(size);
        Upload upload = new Upload(-1, mFilename, mFolderPath, fileSizeString, parentFolder, format.format(date), mService.about().get().execute().getUser().getEmailAddress());
        UploadDataAdapter mUploadDataAdapter = new UploadDataAdapter(mContext);
        mUploadDataAdapter.open();
        mUploadDataAdapter.addUpload(upload);
        mUploadDataAdapter.close();
    } catch (Exception e) {
        Log.d("C2P", "ERROR", e);
        return e;
    }
    return null;
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public void createPdf(String filename) throws DocumentException, IOException {

		Document document = new Document(PageSize.LETTER);
		PdfWriter.getInstance(document, new FileOutputStream(filename));
		document.open();

		// step 4 - add content into document
		String[] imageNames = { "35_Cal_Crutchlow.jpg", "38_Bradley_Smith.jpg", "46_Valentino_Rossi.jpg",
				"99_Jorge_Lorenzo.jpg" };
		for (int i = 0; i < 4; i++) {

			// TODO: 1. Add image into Chunk
			Image image = Image.getInstance("resources/img/" + imageNames[i]);
			image.scaleToFit(500, 500);
			Chunk imageChunk = new Chunk(image, 0, 0, true);

			Phrase phrase = new Phrase(imageNames[i]);

			Paragraph paragraph = new Paragraph();
			paragraph.add(imageChunk);
			paragraph.add(Chunk.NEWLINE);
			paragraph.add(phrase);

			// TODO: 2. Ask iText to keep a paragraph together
			paragraph.setKeepTogether(true);
			paragraph.setSpacingAfter(12);

			document.add(paragraph);
		}

		document.close();
	}