Java Image.getAlignment方法代码示例

import com.lowagie.text.Image; //导入方法依赖的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; //导入方法依赖的package包/类
/**
 * Adds an image to the document.
 * @param image the <CODE>Image</CODE> to add
 * @throws PdfException on error
 * @throws DocumentException on error
 */

protected void add(Image image) throws PdfException, DocumentException {

    if (image.hasAbsoluteY()) {
        graphics.addImage(image);
        pageEmpty = false;
        return;
    }

    // if there isn't enough room for the image on this page, save it for the next page
    if (currentHeight != 0 && indentTop() - currentHeight - image.getScaledHeight() < indentBottom()) {
        if (!strictImageSequence && imageWait == null) {
            imageWait = image;
            return;
        }
        newPage();
        if (currentHeight != 0 && indentTop() - currentHeight - image.getScaledHeight() < indentBottom()) {
            imageWait = image;
            return;
        }
    }
    pageEmpty = false;
    // avoid endless loops
    if (image == imageWait)
        imageWait = null;
    boolean textwrap = (image.getAlignment() & Image.TEXTWRAP) == Image.TEXTWRAP
    && !((image.getAlignment() & Image.MIDDLE) == Image.MIDDLE);
    boolean underlying = (image.getAlignment() & Image.UNDERLYING) == Image.UNDERLYING;
    float diff = leading / 2;
    if (textwrap) {
        diff += leading;
    }
    float lowerleft = indentTop() - currentHeight - image.getScaledHeight() -diff;
    float mt[] = image.matrix();
    float startPosition = indentLeft() - mt[4];
    if ((image.getAlignment() & Image.RIGHT) == Image.RIGHT) startPosition = indentRight() - image.getScaledWidth() - mt[4];
    if ((image.getAlignment() & Image.MIDDLE) == Image.MIDDLE) startPosition = indentLeft() + ((indentRight() - indentLeft() - image.getScaledWidth()) / 2) - mt[4];
    if (image.hasAbsoluteX()) startPosition = image.getAbsoluteX();
    if (textwrap) {
        if (imageEnd < 0 || imageEnd < currentHeight + image.getScaledHeight() + diff) {
            imageEnd = currentHeight + image.getScaledHeight() + diff;
        }
        if ((image.getAlignment() & Image.RIGHT) == Image.RIGHT) {
        	// indentation suggested by Pelikan Stephan
        	indentation.imageIndentRight += image.getScaledWidth() + image.getIndentationLeft();
        }
        else {
        	// indentation suggested by Pelikan Stephan
        	indentation.imageIndentLeft += image.getScaledWidth() + image.getIndentationRight();
        }
    }
    else {
    	if ((image.getAlignment() & Image.RIGHT) == Image.RIGHT) startPosition -= image.getIndentationRight();
    	else if ((image.getAlignment() & Image.MIDDLE) == Image.MIDDLE) startPosition += image.getIndentationLeft() - image.getIndentationRight();
    	else startPosition += image.getIndentationLeft();
    }
    graphics.addImage(image, mt[0], mt[1], mt[2], mt[3], startPosition, lowerleft - mt[5]);
    if (!(textwrap || underlying)) {
        currentHeight += image.getScaledHeight() + diff;
        flushLines();
        text.moveText(0, - (image.getScaledHeight() + diff));
        newLine();
    }
}
 

import com.lowagie.text.Image; //导入方法依赖的package包/类
/**
 * 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();
}