Java Image类代码示例

import com.lowagie.text.Image; //导入依赖的package包/类
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; //导入依赖的package包/类
/**
 * Constructs a <CODE>PdfPCell</CODE> with an <CODE>Image</CODE>.
 * The default padding is 0.25 for a border width of 0.5.
 * 
 * @param image the <CODE>Image</CODE>
 * @param fit <CODE>true</CODE> to fit the image to the cell
 */
public PdfPCell(Image image, boolean fit) {
    super(0, 0, 0, 0);
    borderWidth = 0.5f;
    border = BOX;
    if (fit) {
        this.image = image;
        column.setLeading(0, 1);
        setPadding(borderWidth / 2);
    }
    else {
        column.addText(this.phrase = new Phrase(new Chunk(image, 0, 0)));
        column.setLeading(0, 1);
        setPadding(0);
    }
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 * Creates a <CODE>java.awt.Image</CODE>. A successful call to the method <CODE>generate()</CODE>
 * before calling this method is required.
 * @param foreground the color of the bars
 * @param background the color of the background
 * @return the image
 */    
public java.awt.Image createAwtImage(Color foreground, Color background) {
    if (image == null)
        return null;
    int f = foreground.getRGB();
    int g = background.getRGB();
    Canvas canvas = new Canvas();

    int w = width + 2 * ws;
    int h = height + 2 * ws;
    int pix[] = new int[w * h];
    int stride = (w + 7) / 8;
    int ptr = 0;
    for (int k = 0; k < h; ++k) {
        int p = k * stride;
        for (int j = 0; j < w; ++j) {
            int b = image[p + (j / 8)] & 0xff;
            b <<= j % 8;
            pix[ptr++] = (b & 0x80) == 0 ? g : f;
        }
    }
    java.awt.Image img = canvas.createImage(new MemoryImageSource(w, h, pix, 0, w));
    return img;
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
private Image generateBarCode()
{
	try {
	Barcode128 code128 = new Barcode128();
	
	code128.setSize(12f);
	code128.setBaseline(12f);
	code128.setCode(barcode);

	Image img = code128.createImageWithBarcode(writer.getDirectContent(), null, null);
	img.scalePercent(50, 50);

			
	//img.setAbsolutePosition(PageSize.A4.width() - img.width() - 10,10);			
  		//document.add(img);
	
	return img;
	}catch (Exception ex){
		ex.printStackTrace();
		return null;
	}
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 *
 */
protected Image getPxImage()
{
	if (pxImage == null)
	{
		try
		{
			pxImage =
				Image.getInstance(
					JRLoader.loadBytesFromResource(JRImageLoader.PIXEL_IMAGE_RESOURCE)
					);
		}
		catch(Exception e)
		{
			throw new JRRuntimeException(e);
		}
	}

	return pxImage;
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 *  M�todo que permite introducir un c�digo de barras code128 que represente el texto
 * que se pasa como par�metro. Se debe indicar la p�gina del PDF donde se debe introducir
 * el c�digo (normlamente la p�gina 1) y la posici�n absoluta X e Y dentro de la p�gina.
 */
public void establecerBarCode (int Pagina, String texto, int XPos, int YPos) throws Exception
{		
		Barcode128 code128 = new Barcode128();
	
		code128.setSize(12f);
		code128.setBaseline(12f);
		code128.setCode(texto);

		Image img = code128.createImageWithBarcode(pdfs.getOverContent(Pagina), null, null);
	
		img.setAbsolutePosition(XPos, YPos);
		//Se hace un poco mas peque�o en la escala X para que no ocupe tanto
		img.scalePercent(75, 100);
	
		pdfs.getOverContent(Pagina).addImage(img);

}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 * Constructs a RtfImage for an Image.
 * 
 * @param doc The RtfDocument this RtfImage belongs to
 * @param image The Image that this RtfImage wraps
 * @throws DocumentException If an error occurred accessing the image content
 */
public RtfImage(RtfDocument doc, Image image) throws DocumentException
{
    super(doc);
    imageType = image.getOriginalType();
    if (!(imageType == Image.ORIGINAL_JPEG || imageType == Image.ORIGINAL_BMP
            || imageType == Image.ORIGINAL_PNG || imageType == Image.ORIGINAL_WMF || imageType == Image.ORIGINAL_GIF)) {
        throw new DocumentException("Only BMP, PNG, WMF, GIF and JPEG images are supported by the RTF Writer");
    }
    alignment = image.getAlignment();
    width = image.getWidth();
    height = image.getHeight();
    plainWidth = image.getPlainWidth();
    plainHeight = image.getPlainHeight();
    this.imageData = getImageData(image);
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/** Creates a <CODE>java.awt.Image</CODE>.
 *
 * @param foreground the color of the bars
 * @param background the color of the background
 *
 * @return the image
 */
public java.awt.Image createAwtImage(java.awt.Color foreground, java.awt.Color background) {

    int f = foreground.getRGB();
    int g = background.getRGB();

    int width = bm.getWidth();
    int height = bm.getHeight();
    int pix[] = new int[width * height];
    byte[][] mt = bm.getArray();

    for (int y = 0; y < height; ++y) {
        byte[] line = mt[y];
        for (int x = 0; x < width; ++x) {
            pix[y * width + x] = line[x] == 0 ? f : g;
        }
    }

    java.awt.Canvas canvas = new java.awt.Canvas();
    java.awt.Image img = canvas.createImage(new java.awt.image.MemoryImageSource(width, height, pix, 0, width));

    return img;
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 * Adds an Image at an absolute position.
 */
@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("absolutepositions.pdf"));

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

	// step 4: we add content
	Image png = Image.getInstance(PdfTestBase.RESOURCES_DIR + "hitchcock.png");
	png.setAbsolutePosition(171, 250);
	document.add(png);
	png.setAbsolutePosition(342, 500);
	document.add(png);

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

import com.lowagie.text.Image; //导入依赖的package包/类
/**
 * A cell with an image.
 * 
 */
@Test
public void main() throws Exception {

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

	// step 2:
	PdfWriter.getInstance(document, PdfTestBase.getOutputStream("ImageCell.pdf"));

	// step 3: we open the document
	document.open();
	Image image = Image.getInstance(PdfTestBase.RESOURCES_DIR + "otsoe.jpg");
	float[] widths = { 1f, 4f };
	PdfPTable table = new PdfPTable(widths);
	table.addCell("This is my dog");
	table.addCell(image);
	table.addCell("This two");
	table.addCell(new PdfPCell(image, true));
	table.addCell("This three");
	table.addCell(new PdfPCell(image, false));
	document.add(table);

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

import com.lowagie.text.Image; //导入依赖的package包/类
/** 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; //导入依赖的package包/类
protected void addImage(Image img) throws EmptyStackException {
    // if there is an element on the stack...
    Object current = stack.pop();
    // ...and it's a Chapter or a Section, the Image can be
    // added directly
    if (current instanceof Chapter
            || current instanceof Section
            || current instanceof Cell) {
        ((TextElementArray) current).add(img);
        stack.push(current);
        return;
    }
    // ...if not, we need to to a lot of stuff
    else {
        Stack newStack = new Stack();
        while (!(current instanceof Chapter
                || current instanceof Section || current instanceof Cell)) {
            newStack.push(current);
            if (current instanceof Anchor) {
                img.setAnnotation(new Annotation(0, 0, 0,
                        0, ((Anchor) current).getReference()));
            }
            current = stack.pop();
        }
        ((TextElementArray) current).add(img);
        stack.push(current);
        while (!newStack.empty()) {
            stack.push(newStack.pop());
        }
        return;
    }
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/** Creates a <CODE>java.awt.Image</CODE>.
 * @param foreground the color of the bars
 * @param background the color of the background
 * @return the image
 */    
public java.awt.Image createAwtImage(Color foreground, Color background) {
    int f = foreground.getRGB();
    int g = background.getRGB();
    Canvas canvas = new Canvas();

    paintCode();
    int h = (int)yHeight;
    int pix[] = new int[bitColumns * codeRows * h];
    int stride = (bitColumns + 7) / 8;
    int ptr = 0;
    for (int k = 0; k < codeRows; ++k) {
        int p = k * stride;
        for (int j = 0; j < bitColumns; ++j) {
            int b = outBits[p + (j / 8)] & 0xff;
            b <<= j % 8;
            pix[ptr++] = (b & 0x80) == 0 ? g : f;
        }
        for (int j = 1; j < h; ++j) {
            System.arraycopy(pix, ptr - bitColumns, pix, ptr + bitColumns * (j - 1), bitColumns);
        }
        ptr += bitColumns * (h - 1);
    }
    
    java.awt.Image img = canvas.createImage(new MemoryImageSource(bitColumns, codeRows * h, pix, 0, bitColumns));
    return img;
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
void setThumbnail(Image image, int page) throws PdfException, DocumentException {
    PdfIndirectReference thumb = getImageReference(addDirectImageSimple(image));
    reader.resetReleasePage();
    PdfDictionary dic = reader.getPageN(page);
    dic.put(PdfName.THUMB, thumb);
    reader.resetReleasePage();
}
 

import com.lowagie.text.Image; //导入依赖的package包/类
/**
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 * @param value ͼƬ���뷽ʽ
 */
public void setAlignment(String value){
	if(value.equalsIgnoreCase("center")){
		this.image.setAlignment(Image.ALIGN_CENTER);
	}
	if(value.equalsIgnoreCase("left")){
		this.image.setAlignment(Image.ALIGN_LEFT);
	}
	if(value.equalsIgnoreCase("right")){
		this.image.setAlignment(Image.ALIGN_RIGHT);
	}
}