com.lowagie.text.pdf.GrayColor Java Examples

/**
 * Painting Patterns.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {


	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);

	// 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("pattern.pdf"));

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

	// step 4: we add some content
	PdfContentByte cb = writer.getDirectContent();
	PdfTemplate tp = cb.createTemplate(400, 300);
	PdfPatternPainter pat = cb.createPattern(15, 15, null);
	pat.rectangle(5, 5, 5, 5);
	pat.fill();
	pat.sanityCheck();

	PdfSpotColor spc_cmyk = new PdfSpotColor("PANTONE 280 CV",
			new CMYKColor(0.9f, .2f, .3f, .1f));
	SpotColor spot = new SpotColor(spc_cmyk, 0.25f);
	tp.setPatternFill(pat, spot, .9f);
	tp.rectangle(0, 0, 400, 300);
	tp.fill();
	tp.sanityCheck();

	cb.addTemplate(tp, 50, 50);
	PdfPatternPainter pat2 = cb.createPattern(10, 10, null);
	pat2.setLineWidth(2);
	pat2.moveTo(-5, 0);
	pat2.lineTo(10, 15);
	pat2.stroke();
	pat2.moveTo(0, -5);
	pat2.lineTo(15, 10);
	pat2.stroke();
	cb.setLineWidth(1);
	cb.setColorStroke(Color.black);
	cb.setPatternFill(pat2, Color.red);
	cb.rectangle(100, 400, 30, 210);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.green);
	cb.rectangle(150, 400, 30, 100);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.blue);
	cb.rectangle(200, 400, 30, 130);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.5f));
	cb.rectangle(250, 400, 30, 80);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.7f));
	cb.rectangle(300, 400, 30, 170);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.9f));
	cb.rectangle(350, 400, 30, 40);
	cb.fillStroke();

	cb.sanityCheck();

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

/**
    * Demonstrates the use of spotcolors.
    */
@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 writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("spotcolor.pdf"));
           BaseFont bf = BaseFont.createFont("Helvetica", "winansi", BaseFont.NOT_EMBEDDED);
           
           // step 3: we open the document
           document.open();
           
           // step 4: we grab the ContentByte and do some stuff with it
           PdfContentByte cb = writer.getDirectContent();
           
           // step 5: we instantiate PdfSpotColor
           
           // Note: I made up these names unless someone give me a PANTONE swatch as gift ([email protected])
           PdfSpotColor spc_cmyk = new PdfSpotColor("PANTONE 280 CV", new CMYKColor(0.9f, .2f, .3f, .1f));
           PdfSpotColor spc_rgb = new PdfSpotColor("PANTONE 147", new Color(114, 94, 38));
           PdfSpotColor spc_g = new PdfSpotColor("PANTONE 100 CV", new GrayColor(0.9f));
           
           // Stroke a rectangle with CMYK alternate
           cb.setColorStroke(spc_cmyk, .5f);
           cb.setLineWidth(10f);
           // draw a rectangle
           cb.rectangle(100, 700, 100, 100);
           // add the diagonal
           cb.moveTo(100, 700);
           cb.lineTo(200, 800);
           // stroke the lines
           cb.stroke();
           
           // Fill a rectangle with CMYK alternate
           cb.setColorFill(spc_cmyk, 0.25f);
           cb.rectangle(250, 700, 100, 100);
           cb.fill();
           
           // Stroke a circle with RGB alternate
           cb.setColorStroke(spc_rgb, 0.9f);
           cb.setLineWidth(5f);
           cb.circle(150f, 500f, 100f);
           cb.stroke();
           
           // Fill the circle with RGB alternate
           cb.setColorFill(spc_rgb, 0.9f);
           cb.circle(150f, 500f, 50f);
           cb.fill();
           
           // example with colorfill
           cb.setColorFill(spc_g, 0.5f);
           cb.moveTo(100f, 200f);
           cb.lineTo(200f, 250f);
           cb.lineTo(400f, 150f);
           cb.fill();
           // cb.sanityCheck is called during newPage().
           document.newPage();
           String text = "Some text to show";
           document.add(new Paragraph(text, new Font(Font.HELVETICA, 24, Font.NORMAL, new SpotColor(spc_cmyk, 0.25f))));
           document.add(new Paragraph(text, new Font(Font.HELVETICA, 24, Font.NORMAL, new SpotColor(spc_cmyk, 0.5f))));
           
           // example with template
           PdfTemplate t = cb.createTemplate(500f, 500f);
           // Stroke a rectangle with CMYK alternate
           t.setColorStroke(new SpotColor(spc_cmyk, .5f));
           t.setLineWidth(10f);
           // draw a rectangle
           t.rectangle(100, 10, 100, 100);
           // add the diagonal
           t.moveTo(100, 10);
           t.lineTo(200, 100);
           // stroke the lines
           t.stroke();
           
           // Fill a rectangle with CMYK alternate
           t.setColorFill(spc_g, 0.5f);
           t.rectangle(100, 125, 100, 100);
           t.fill();
           t.beginText();
           t.setFontAndSize(bf, 20f);
           t.setTextMatrix(1f, 0f, 0f, 1f, 10f, 10f);
           t.showText("Template text upside down");
           t.endText();
           t.rectangle(0, 0, 499, 499);
           t.stroke();
           t.sanityCheck();
           cb.addTemplate(t, -1.0f, 0.00f, 0.00f, -1.0f, 550f, 550f);
           
           cb.sanityCheck();

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

/**
 * Generates an Acroform with a TextField
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4);

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

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

	// step 4:
	BaseFont helv = BaseFont.createFont("Helvetica", "winansi", false);
	PdfContentByte cb = writer.getDirectContent();
	cb.moveTo(0, 0);
	String text = "Some start text";
	float fontSize = 12;
	Color textColor = new GrayColor(0f);
	PdfFormField field = PdfFormField.createTextField(writer, false, false, 0);
	field.setWidget(new Rectangle(171, 750, 342, 769), PdfAnnotation.HIGHLIGHT_INVERT);
	field.setFlags(PdfAnnotation.FLAGS_PRINT);
	field.setFieldName("ATextField");
	field.setValueAsString(text);
	field.setDefaultValueAsString(text);
	field.setBorderStyle(new PdfBorderDictionary(2, PdfBorderDictionary.STYLE_SOLID));
	field.setPage();
	PdfAppearance tp = cb.createAppearance(171, 19);
	PdfAppearance da = (PdfAppearance) tp.getDuplicate();
	da.setFontAndSize(helv, fontSize);
	da.setColorFill(textColor);
	field.setDefaultAppearanceString(da);
	tp.beginVariableText();
	tp.saveState();
	tp.rectangle(2, 2, 167, 15);
	tp.clip();
	tp.newPath();
	tp.beginText();
	tp.setFontAndSize(helv, fontSize);
	tp.setColorFill(textColor);
	tp.setTextMatrix(4, 5);
	tp.showText(text);
	tp.endText();
	tp.restoreState();
	tp.endVariableText();
	field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, tp);
	writer.addAnnotation(field);

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

/**
 * Gets the grayscale.
 * 
 * @return the grayscale color of the background
    * or 0 if the background has no grayscale color.
 */
public float getGrayFill() {
       if (backgroundColor instanceof GrayColor)
           return ((GrayColor)backgroundColor).getGray();
       return 0;
}
 

/**
 * Sets the the background color to a grayscale value.
 * 
 * @param value	the new grayscale value
 */
public void setGrayFill(float value) {
       backgroundColor = new GrayColor(value);
}
 

/**
 * Gets the grayscale.
 * 
 * @return the grayscale color of the background
    * or 0 if the background has no grayscale color.
 */
public float getGrayFill() {
       if (backgroundColor instanceof GrayColor)
           return ((GrayColor)backgroundColor).getGray();
       return 0;
}
 

/**
 * Sets the the background color to a grayscale value.
 * 
 * @param value	the new grayscale value
 */
public void setGrayFill(float value) {
       backgroundColor = new GrayColor(value);
}