Java PdfContentByte.saveState方法代码示例

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPageEventHelper#onStartPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document)
 */
public void onStartPage(PdfWriter writer, Document document) {
    if (writer.getPageNumber() < 3) {
        PdfContentByte cb = writer.getDirectContentUnder();
        cb.saveState();
        cb.setColorFill(Color.pink);
        cb.beginText();
        cb.setFontAndSize(helv, 48);
        cb.showTextAligned(Element.ALIGN_CENTER, "My Watermark Under " + writer.getPageNumber(), document.getPageSize().getWidth() / 2, document.getPageSize().getHeight() / 2, 45);
        cb.endText();
        cb.restoreState();
    }
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
@Test
public void main() throws Exception {

	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	PdfWriter writer = PdfWriter.getInstance(document,	PdfTestBase.getOutputStream( "shading.pdf"));
	document.open();

	PdfFunction function1 = PdfFunction.type2(writer, new float[] { 0, 1 },
			null, new float[] { .929f, .357f, 1, .298f }, new float[] {
					.631f, .278f, 1, .027f }, 1.048f);
	PdfFunction function2 = PdfFunction.type2(writer, new float[] { 0, 1 },
			null, new float[] { .929f, .357f, 1, .298f }, new float[] {
					.941f, .4f, 1, .102f }, 1.374f);
	PdfFunction function3 = PdfFunction.type3(writer, new float[] { 0, 1 },
			null, new PdfFunction[] { function1, function2 },
			new float[] { .708f }, new float[] { 1, 0, 0, 1 });
	PdfShading shading = PdfShading.type3(writer,
			new CMYKColor(0, 0, 0, 0),
			new float[] { 0, 0, .096f, 0, 0, 1 }, null, function3,
			new boolean[] { true, true });
	PdfContentByte cb = writer.getDirectContent();
	cb.moveTo(316.789f, 140.311f);
	cb.curveTo(303.222f, 146.388f, 282.966f, 136.518f, 279.122f, 121.983f);
	cb.lineTo(277.322f, 120.182f);
	cb.curveTo(285.125f, 122.688f, 291.441f, 121.716f, 298.156f, 119.386f);
	cb.lineTo(336.448f, 119.386f);
	cb.curveTo(331.072f, 128.643f, 323.346f, 137.376f, 316.789f, 140.311f);
	cb.clip();
	cb.newPath();
	cb.saveState();
	cb.concatCTM(27.7843f, 0, 0, -27.7843f, 310.2461f, 121.1521f);
	cb.paintShading(shading);
	cb.restoreState();

	cb.sanityCheck();

	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void footer() {
	PdfContentByte cb = writer.getDirectContent();
	cb.saveState();

	Date now = new Date();
	String promoTxt = OscarProperties.getInstance().getProperty("FORMS_PROMOTEXT");
	if (promoTxt == null) {
		promoTxt = new String();
	}

	String strFooter = promoTxt + " " + formatter.format(now);

	float textBase = document.bottom();
	cb.beginText();
	cb.setFontAndSize(font.getBaseFont(), FONTSIZE);
	Rectangle page = document.getPageSize();
	float width = page.getWidth();

	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width / 2.0f), textBase - 20, 0);

	strFooter = "-" + writer.getPageNumber() + "-";
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width / 2.0f), textBase - 10, 0);

	cb.endText();
	cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void onEndPage(PdfWriter writer, Document document) {
	//Footer contains page numbers and date printed on all pages
	PdfContentByte cb = writer.getDirectContent();
	cb.saveState();

	String strFooter = promoTxt + " " + formatter.format(now);

	float textBase = document.bottom();
	cb.beginText();
	cb.setFontAndSize(font.getBaseFont(), FONTSIZE);
	Rectangle page = document.getPageSize();
	float width = page.getWidth();
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width / 2.0f), textBase - 20, 0);

	strFooter = "-" + writer.getPageNumber() + "-";
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width / 2.0f), textBase - 10, 0);

	cb.endText();
	cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void onEndPage( PdfWriter writer, Document document ) {
    //Footer contains page numbers and date printed on all pages
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();

    String strFooter = promoTxt + " " + formatter.format(now);

    float textBase = document.bottom();
    cb.beginText();
    cb.setFontAndSize(font.getBaseFont(),FONTSIZE);
    Rectangle page = document.getPageSize();
    float width = page.getWidth();

    cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase - 20, 0);

    strFooter = "-" + writer.getPageNumber() + "-";
    cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase-10, 0);

    cb.endText();
    cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Adds promo text, date and current page number to each page
 * 
 * @param writer
 * @param document
 */
public void onEndPage(PdfWriter writer, Document document) {
	PdfContentByte cb = writer.getDirectContent();
	cb.saveState();

	float textBase = document.bottom() - getBaseOffset();
	float width = document.getPageSize().getWidth();
	float center = width / 2.0f;

	cb.beginText();
	cb.setFontAndSize(getFont(), getFontSize());

	cb.setTextMatrix(document.left(), textBase);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, text, center, textBase, 0);
	cb.endText();
	cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void onEndPage(PdfWriter writer, Document document) {
	PdfContentByte cb = writer.getDirectContent();
	cb.saveState();

	String text = "Page " + writer.getPageNumber() + " of ";

	// height where text starts 
	float textBase = document.bottom() - getBaseOffset();
	float textSize = getFont().getWidthPoint(text, getFontSize());
	float width = document.getPageSize().getWidth();
	float center = width / 2.0f;

	cb.beginText();
	cb.setFontAndSize(getFont(), getFontSize());

	cb.setTextMatrix(document.left(), textBase);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER, text, center, textBase, 0);
	cb.endText();
	cb.addTemplate(total, center + (textSize / 2.0f), textBase);

	cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void footer() {
       PdfContentByte cb = writer.getDirectContent();
       cb.saveState();

       Date now = new Date();
       String promoTxt = OscarProperties.getInstance().getProperty("FORMS_PROMOTEXT");
       if( promoTxt == null ) {
           promoTxt = new String();
       }

       String strFooter = promoTxt + " " + formatter.format(now);

       float textBase = document.bottom();
       cb.beginText();
       cb.setFontAndSize(font.getBaseFont(),FONTSIZE);
       Rectangle page = document.getPageSize();
       float width = page.getWidth();

       cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase - 20, 0);

       strFooter = "-" + writer.getPageNumber() + "-";
       cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase-10, 0);

       cb.endText();
       cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void onEndPage( PdfWriter writer, Document document ) {
    //Footer contains page numbers and date printed on all pages
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();

    String strFooter = promoTxt + " " + formatter.format(now);

    float textBase = document.bottom();
    cb.beginText();
    cb.setFontAndSize(font.getBaseFont(),FONTSIZE);
    Rectangle page = document.getPageSize();
    float width = page.getWidth();            
    cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase - 20, 0);

    strFooter = "-" + writer.getPageNumber() + "-";
    cb.showTextAligned(PdfContentByte.ALIGN_CENTER, strFooter, (width/2.0f), textBase-10, 0);

    cb.endText();
    cb.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.draw.DrawInterface#draw(com.lowagie.text.pdf.PdfContentByte, float, float, float, float, float)
 */
public void draw(PdfContentByte canvas, float llx, float lly, float urx, float ury, float y) {
	canvas.saveState();
	canvas.setLineWidth(lineWidth);
	canvas.setLineCap(PdfContentByte.LINE_CAP_ROUND);
	canvas.setLineDash(0, gap, gap / 2);
       drawLine(canvas, llx, urx, y);
	canvas.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void paintToPDF(JEditorPane jep,File file) {
  try {
    jep.setBounds(0, 0, (int) convertToPixels(612 - 58), (int) convertToPixels(792 - 60));

    Document document = new Document();
    FileOutputStream fos = new FileOutputStream(file);
    PdfWriter writer = PdfWriter.getInstance(document, fos);

    document.setPageSize(new com.lowagie.text.Rectangle(612, 792));
    document.open();
    PdfContentByte cb = writer.getDirectContent();

    cb.saveState();
    cb.concatCTM(1, 0, 0, 1, 0, 0);

    DefaultFontMapper mapper = new DefaultFontMapper();
    mapper.insertDirectory("c:/windows/fonts");

    Graphics2D g2 = cb.createGraphics(612, 792, mapper, true, .95f);

    AffineTransform at = new AffineTransform();
    at.translate(convertToPixels(20), convertToPixels(20));
    at.scale(pixelToPoint, pixelToPoint);

    g2.transform(at);

    g2.setColor(Color.WHITE);
    g2.fill(jep.getBounds());

    Rectangle alloc = getVisibleEditorRect(jep);
    jep.getUI().getRootView(jep).paint(g2, alloc);

    g2.setColor(Color.BLACK);
    g2.draw(jep.getBounds());

    g2.dispose();
    cb.restoreState();
    document.close();
    fos.flush();
    fos.close();
  } catch (Exception e) {
    e.printStackTrace();
  }
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.draw.DrawInterface#draw(com.lowagie.text.pdf.PdfContentByte, float, float, float, float, float)
 */
public void draw(PdfContentByte canvas, float llx, float lly, float urx, float ury, float y) {
    canvas.saveState();
    drawLine(canvas, llx, urx, y);
    canvas.restoreState();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public void saveState(PdfContentByte cb) {
    cb.saveState();
    MetaState state = new MetaState(this);
    savedStates.push(state);
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Changing the Graphics State with saveState() and restoreState().
 * 
 */
@Test
public void main() throws Exception {

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

	try {

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

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

		// step 4: we grab the ContentByte and do some stuff with it
		PdfContentByte cb = writer.getDirectContent();

		cb.circle(260.0f, 500.0f, 250.0f);
		cb.fill();
		cb.saveState();
		cb.setColorFill(Color.red);
		cb.circle(260.0f, 500.0f, 200.0f);
		cb.fill();
		cb.saveState();
		cb.setColorFill(Color.blue);
		cb.circle(260.0f, 500.0f, 150.0f);
		cb.fill();
		cb.restoreState();
		cb.circle(260.0f, 500.0f, 100.0f);
		cb.fill();
		cb.restoreState();
		cb.circle(260.0f, 500.0f, 50.0f);
		cb.fill();
		
		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.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @see com.lowagie.text.pdf.PdfPageEventHelper#onEndPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document)
 */
public void onEndPage(PdfWriter writer, Document document) {
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();
    // write the headertable
    table.setTotalWidth(document.right() - document.left());
    table.writeSelectedRows(0, -1, document.left(), document.getPageSize().getHeight() - 50, cb);
    // compose the footer
    String text = "Page " + writer.getPageNumber() + " of ";
    float textSize = helv.getWidthPoint(text, 12);
    float textBase = document.bottom() - 20;
    cb.beginText();
    cb.setFontAndSize(helv, 12);
    // for odd pagenumbers, show the footer at the left
    if ((writer.getPageNumber() & 1) == 1) {
        cb.setTextMatrix(document.left(), textBase);
        cb.showText(text);
        cb.endText();
        cb.addTemplate(tpl, document.left() + textSize, textBase);
    }
    // for even numbers, show the footer at the right
    else {
        float adjust = helv.getWidthPoint("0", 12);
        cb.setTextMatrix(document.right() - textSize - adjust, textBase);
        cb.showText(text);
        cb.endText();
        cb.addTemplate(tpl, document.right() - adjust, textBase);
    }

    // draw a Rectangle around the page
    cb.setColorStroke(Color.orange);
    cb.setLineWidth(2);
    cb.rectangle(20, 20, document.getPageSize().getWidth() - 40, document.getPageSize().getHeight() - 40);
    cb.stroke();

    // starting on page 3, a watermark with an Image that is made transparent
    if (writer.getPageNumber() >= 3) {

        cb.setGState(gstate);
        cb.setColorFill(Color.red);
        cb.beginText();
        cb.setFontAndSize(helv, 48);
        cb.showTextAligned(Element.ALIGN_CENTER, "Watermark Opacity " + writer.getPageNumber(), document.getPageSize().getWidth() / 2, document.getPageSize().getHeight() / 2, 45);
        cb.endText();
        try {
            cb.addImage(headerImage, headerImage.getWidth(), 0, 0, headerImage.getHeight(), 440, 80);
        }
        catch(Exception e) {
            throw new ExceptionConverter(e);
        }
    }
    cb.restoreState();
    cb.sanityCheck();
}