Java Image.getInstance方法代碼示例

import com.lowagie.text.Image; //導入方法依賴的package包/類
public static void convertWriteToPdf(BufferedImage bufeBufferedImage, String path) {
    try {
        //Image img = Image.getInstance("C:\\Users\\SOFTWARE1\\Desktop\\boshtwain4JImages\\testcapture1507134499431.jpg");
        Image img = Image.getInstance(bufeBufferedImage, null);
        Document document = new Document(img);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(path));
        //--
        document.open();
        img.setAbsolutePosition(0, 0);
        //--
        document.add(img);
        //--
        document.close();
    } catch (DocumentException | IOException e) {
        System.out.println("Intern Log : " + e.getMessage());
    }
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/** Print a java image */
private void printImage(java.awt.Image image, PdfContentByte cb, float x1, float y1, float x2, float y2, int alignment, int fitMethod, float rotate)
throws BadElementException, IOException, DocumentException {
    if(image!=null) {
        // Convert to an iText Image
        Image img = Image.getInstance(image, null);
        printImage(img,cb,x1,y1,x2,y2,alignment,fitMethod,rotate);
    }
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/** 
 * Establece una imagen de fondo para todas las paginas
 *     
 * @param	nPagina	Indica el n�mero de p�gina donde se inertar� la imagen de fondo
 * @param   a_pathImagen Indica el fichero imagen a insertar (Path absoluto)
 * @param   a_posX Indica la posici�n X absoluta dentro del PDF donde se colocar� la imagen
 * @param   a_pathImagen Indica la posici�n Y absoluta dentro del PDF donde se colocar� la imagen
 */
public void establecerFondo (String a_pathImagen, float a_posX, float a_posY) throws Exception
{
	int n = pdfr.getNumberOfPages();
	Image imagen = Image.getInstance(a_pathImagen);
	imagen.setAbsolutePosition(a_posX, a_posY);
	imagen.setTransparency(new int[] {255, 255,255, 255, 255, 255});
	
	for (int i=1;i<=n;i++){
		pdfs.getUnderContent(i).addImage(imagen);
	}
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/** Gets an <CODE>Image</CODE> with the barcode. A successful call to the method <CODE>generate()</CODE>
 * before calling this method is required.
 * @return the barcode <CODE>Image</CODE>
 * @throws BadElementException on error
 */    
public Image createImage() throws BadElementException {
    if (image == null)
        return null;
    byte g4[] = CCITTG4Encoder.compress(image, width + 2 * ws, height + 2 * ws);
    return Image.getInstance(width + 2 * ws, height + 2 * ws, false, Image.CCITTG4, 0, g4, null);
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
 * Adds an image to this Cell.
 *
 * @param i           the image to add
 * @param left        the left border
 * @param right       the right border
 * @param extraHeight extra height to add above image
 * @param alignment   horizontal alignment (constant from Element class)
 * @return the height of the image
 */

private float addImage(Image i, float left, float right, float extraHeight, int alignment) {
    Image image = Image.getInstance(i);
    if (image.getScaledWidth() > right - left) {
        image.scaleToFit(right - left, Float.MAX_VALUE);
    }
    flushCurrentLine();
    if (line == null) {
        line = new PdfLine(left, right, alignment, leading);
    }
    PdfLine imageLine = line;

    // left and right in chunk is relative to the start of the line
    right = right - left;
    left = 0f;

    if ((image.getAlignment() & Image.RIGHT) == Image.RIGHT) {
        left = right - image.getScaledWidth();
    } else if ((image.getAlignment() & Image.MIDDLE) == Image.MIDDLE) {
        left = left + ((right - left - image.getScaledWidth()) / 2f);
    }
    Chunk imageChunk = new Chunk(image, left, 0);
    imageLine.add(new PdfChunk(imageChunk, null));
    addLine(imageLine);
    return imageLine.height();
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
 * General example using cell events.
 * 
 */
@Test
public void main() throws Exception {
	// step1
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	// step2
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("CellEvents.pdf"));
	// step3
	document.open();
	// step4
	CellEventsTest event = new CellEventsTest();
	Image im = Image.getInstance(PdfTestBase.RESOURCES_DIR + "otsoe.jpg");
	im.setRotationDegrees(30);
	PdfPTable table = new PdfPTable(4);
	table.addCell("text 1");
	PdfPCell cell = new PdfPCell(im, true);
	cell.setCellEvent(event);
	table.addCell(cell);
	table.addCell("text 3");
	im.setRotationDegrees(0);
	table.addCell(im);
	table.setTotalWidth(300);
	PdfContentByte cb = writer.getDirectContent();
	table.writeSelectedRows(0, -1, 50, 600, cb);
	table.setHeaderRows(3);
	document.add(table);

	// step5
	document.close();
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
    * Add an image using different transformation matrices.
    */
@Test
public void main() throws Exception {
       Document.compress = false;
       // step 1: creation of a document-object
       Document document = new Document(PageSize.A4);
       
       try {
           // step 2: creation of the writer
           PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream( "transformimage.pdf"));
           
           // step 3: we open the document
           document.open();
           
           // step 4:
           PdfContentByte cb = writer.getDirectContent();
           Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR + "hitchcock.png");
           cb.addImage(img, 271, -50, -30, 550, 100, 100);
           cb.sanityCheck();
  
       }
       catch(DocumentException de) {
           System.err.println(de.getMessage());
       }
       catch(IOException ioe) {
           System.err.println(ioe.getMessage());
       }
       
       // step 5: we close the document
       document.close();
   }
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
 * General Images example
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter.getInstance(document, PdfTestBase.getOutputStream("Images.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:
	document.add(new Paragraph("A picture of my dog: otsoe.jpg"));
	Image jpg = Image.getInstance(PdfTestBase.RESOURCES_DIR + "otsoe.jpg");
	document.add(jpg);
	document.add(new Paragraph("getacro.gif"));
	Image gif = Image.getInstance(PdfTestBase.RESOURCES_DIR + "getacro.gif");
	document.add(gif);
	document.add(new Paragraph("pngnow.png"));
	Image png = Image.getInstance(PdfTestBase.RESOURCES_DIR + "pngnow.png");
	document.add(png);
	document.add(new Paragraph("iText.bmp"));
	Image bmp = Image.getInstance(PdfTestBase.RESOURCES_DIR + "iText.bmp");
	document.add(bmp);
	document.add(new Paragraph("iText.wmf"));
	Image wmf = Image.getInstance(PdfTestBase.RESOURCES_DIR + "iText.wmf");
	document.add(wmf);
	document.add(new Paragraph("iText.tif"));
	Image tiff = Image.getInstance(PdfTestBase.RESOURCES_DIR + "iText.tif");
	document.add(tiff);

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
public void addBarcode(String barcode, int x, int y) throws ParserException {
    try {
        Barcode128 code128 = new Barcode128();
        code128.setCode(barcode);

        PdfContentByte cb = stamp.getOverContent(1);
        Image image128 = Image.getInstance(code128.createImageWithBarcode(cb, null, null));

        cb.addImage(image128, image128.width(), 0, 0, image128.height(), x, y);
        cb.moveTo(0, 0);
    } catch (DocumentException e) {
        throw new ParserException("Could not add barcode", e);
    }
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/** 
 * Establece una imagen en una posici�n indic�ndole un porcentaje de ampliaci�n/reducci�n
 *     
 * @param	nPagina	Indica el n�mero de p�gina donde se inertar� la imagen
 * @param   a_Imagen Indica el byte[] de la imagen a insertar
 * @param   a_posX Indica la posici�n X absoluta dentro del PDF donde se colocar� la imagen
 * @param   a_posY Indica la posici�n Y absoluta dentro del PDF donde se colocar� la imagen
 */
public void establecerImagen (int nPagina, byte[] a_Imagen, float a_posX, float a_posY, float af_porcentaje) throws Exception
{
	Image imagen = Image.getInstance(a_Imagen);
	imagen.scalePercent(af_porcentaje);
	imagen.setAbsolutePosition(a_posX, a_posY);
	imagen.setTransparency(new int[] {255, 255,255, 255, 255, 255});
	pdfs.getOverContent(nPagina).addImage(imagen);
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
 * Gets an <CODE>Image</CODE> with the barcode.
 *
 * @return the barcode <CODE>Image</CODE>
 * @throws BadElementException on error
 */
public Image getImage() throws BadElementException {

    byte[] b = getBitMatrix();
    byte g4[] = CCITTG4Encoder.compress(b, bm.getWidth(), bm.getHeight());

    return Image.getInstance(bm.getWidth(), bm.getHeight(), false, Image.CCITTG4, Image.CCITT_BLACKIS1, g4, null);
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
/**
 * Generates 2 documents: one that respects the order of Images added,
 * another that has the default behaviour: only show the images if they fit
 * on the page, if they don't fit, wait until the next page.
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter.getInstance(document, PdfTestBase.getOutputStream("notInSequence.pdf"));
	PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("inSequence.pdf"));
	writer.setStrictImageSequence(true);

	// step 3: we open the document
	document.open();

	// step 4:
	document.add(new Paragraph("1st image"));
	Image jpg = Image.getInstance(PdfTestBase.RESOURCES_DIR + "otsoe.jpg");
	document.add(jpg);
	document.add(new Paragraph("2nd image"));
	Image gif = Image.getInstance(PdfTestBase.RESOURCES_DIR + "getacro.gif");
	document.add(gif);
	document.add(new Paragraph("3rd image"));
	document.add(jpg);
	document.add(new Paragraph("4th image"));
	document.add(gif);
	document.add(new Paragraph("5th image"));
	document.add(jpg);
	document.add(new Paragraph("6th image"));
	document.add(gif);
	document.add(new Paragraph("7th image"));
	document.add(jpg);

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
public void addTextVertical(PdfPCell cell, String text, boolean bold) throws Exception  {
	if (text==null) return;
       if (text.indexOf("<span")>=0)
           text = text.replaceAll("</span>","").replaceAll("<span .*>", "");
       Font font = PdfFont.getFont(bold);
	BaseFont bf = font.getBaseFont();
	float width = bf.getWidthPoint(text, font.getSize());
	PdfTemplate template = iWriter.getDirectContent().createTemplate(2 * font.getSize() + 4, width);
	template.beginText();
	template.setColorFill(Color.BLACK);
	template.setFontAndSize(bf, font.getSize());
	template.setTextMatrix(0, 2);
	template.showText(text);
	template.endText();
	template.setWidth(width);
	template.setHeight(font.getSize() + 2);
	//make an Image object from the template
	Image img = Image.getInstance(template);
	img.setRotationDegrees(270);
	//embed the image in a Chunk
	Chunk ck = new Chunk(img, 0, 0);
	
	if (cell.getPhrase()==null) {
		cell.setPhrase(new Paragraph(ck));
		cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
		cell.setHorizontalAlignment(Element.ALIGN_RIGHT);
	} else {
		cell.getPhrase().add(ck);
	}
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
private float addImage(PdfPCell cell, String name) {
	try {
		java.awt.Image awtImage = (java.awt.Image)iImages.get(name);
		if (awtImage==null) return 0;
		Image img = Image.getInstance(awtImage, Color.WHITE);
		Chunk ck = new Chunk(img, 0, 0);
		if (cell.getPhrase()==null) {
			cell.setPhrase(new Paragraph(ck));
			cell.setVerticalAlignment(Element.ALIGN_TOP);
			cell.setHorizontalAlignment(Element.ALIGN_CENTER);
		} else {
			cell.getPhrase().add(ck);
		}
		return awtImage.getWidth(null);
	} catch (Exception e) {
		return 0;
	}
}
 

import com.lowagie.text.Image; //導入方法依賴的package包/類
public A(java.awt.Image image) {
	try {
		iImage = Image.getInstance(image, Color.WHITE);
	} catch (Exception e) {}
}