Java Tutorial/PDF/Pattern
Содержание
Create and use PdfGState
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.CMYKColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfGState; import com.lowagie.text.pdf.PdfShading; import com.lowagie.text.pdf.PdfShadingPattern; import com.lowagie.text.pdf.PdfTemplate; import com.lowagie.text.pdf.PdfTransparencyGroup; import com.lowagie.text.pdf.PdfWriter; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
float gap = (document.getPageSize().width() - 400) / 3;
pictureBackdrop(gap, 500, cb, writer);
PdfTemplate tp;
PdfTransparencyGroup group;
tp = cb.createTemplate(200, 200);
pictureCircles(0, 0, tp);
group = new PdfTransparencyGroup();
group.setIsolated(true);
group.setKnockout(true);
tp.setGroup(group);
cb.addTemplate(tp, gap, 500);
document.close();
}
public static void pictureBackdrop(float x, float y, PdfContentByte cb, PdfWriter writer) {
PdfShading axial = PdfShading.simpleAxial(writer, x, y, x + 200, y, Color.yellow, Color.red);
PdfShadingPattern axialPattern = new PdfShadingPattern(axial);
cb.setShadingFill(axialPattern);
cb.setColorStroke(Color.black);
cb.setLineWidth(2);
cb.rectangle(x, y, 200, 200);
cb.fillStroke();
}
public static void pictureCircles(float x, float y, PdfContentByte cb) {
PdfGState gs = new PdfGState();
gs.setBlendMode(PdfGState.BM_MULTIPLY);
gs.setFillOpacity(1f);
cb.setGState(gs);
cb.setColorFill(new CMYKColor(0f, 0f, 0f, 0.15f));
cb.circle(x + 125, y + 75, 70);
cb.fill();
cb.circle(x + 125, y + 125, 70);
cb.fill();
}
}</source>
Line pattern
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PatternColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPatternPainter; import com.lowagie.text.pdf.PdfWriter; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfPatternPainter line = cb.createPattern(5, 10, null);
line.setLineWidth(1);
line.moveTo(3, -1);
line.lineTo(3, 11);
line.stroke();
PatternColor lines = new PatternColor(line);
cb.setColorFill(lines);
cb.rectangle(360, 716, 72, 72);
cb.fillStroke();
document.close();
}
}</source>
Pattern of ellipses
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PatternColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPatternPainter; import com.lowagie.text.pdf.PdfWriter; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfPatternPainter ellipse = cb.createPattern(15, 10, 20, 25);
ellipse.setColorFill(new Color(0xFF, 0xFF, 0x00));
ellipse.setColorStroke(new Color(0xFF, 0x00, 0x00));
ellipse.ellipse(2f, 2f, 13f, 8f);
ellipse.fillStroke();
PatternColor ellipses = new PatternColor(ellipse);
cb.setColorFill(ellipses);
cb.rectangle(144, 716, 72, 72);
cb.fillStroke();
document.close();
}
}</source>
Pdf Pattern Painter
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PatternColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPatternPainter; import com.lowagie.text.pdf.PdfWriter; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfPatternPainter circle = cb.createPattern(15, 15, 10, 20, Color.blue);
circle.circle(7.5f, 7.5f, 2.5f);
circle.fill();
PatternColor circles = new PatternColor(circle);
cb.setColorFill(circles);
cb.rectangle(252, 716, 72, 72);
cb.fillStroke();
document.close();
}
}</source>
Square pattern
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PatternColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPatternPainter; import com.lowagie.text.pdf.PdfWriter; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfPatternPainter square = cb.createPattern(15, 15);
square.setColorFill(new Color(0xFF, 0xFF, 0x00));
square.setColorStroke(new Color(0xFF, 0x00, 0x00));
square.rectangle(5, 5, 5, 5);
square.fillStroke();
PatternColor squares = new PatternColor(square);
cb.setColorFill(squares);
cb.rectangle(36, 716, 72, 72);
cb.fillStroke();
document.close();
}
}</source>
Use SpotColor
<source lang="java">
import java.awt.Color; import java.io.FileOutputStream; import java.io.IOException; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.pdf.CMYKColor; import com.lowagie.text.pdf.GrayColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfSpotColor; import com.lowagie.text.pdf.PdfWriter; import com.lowagie.text.pdf.SpotColor; public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(
document,
new FileOutputStream("2.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfSpotColor psc_g = new PdfSpotColor("iTextSpotColorGray", 0.5f,
new GrayColor(0.9f));
PdfSpotColor psc_rgb = new PdfSpotColor("iTextSpotColorRGB", 0.9f,
new Color(0x64, 0x95, 0xed));
PdfSpotColor psc_cmyk = new PdfSpotColor("iTextSpotColorCMYK",
0.25f, new CMYKColor(0.3f, .9f, .3f, .1f));
SpotColor sc_g = new SpotColor(psc_g);
SpotColor sc_rgb1 = new SpotColor(psc_rgb, 0.1f);
SpotColor sc_cmyk = new SpotColor(psc_cmyk);
cb.setColorFill(sc_g);
cb.rectangle(36, 770, 36, 36);
cb.fillStroke();
cb.setColorFill(psc_g, psc_g.getTint());
cb.rectangle(90, 770, 36, 36);
cb.fillStroke();
cb.setColorFill(psc_g, 1);
cb.rectangle(252, 770, 36, 36);
cb.fillStroke();
cb.setColorFill(sc_rgb1);
cb.rectangle(36, 716, 36, 36);
cb.fillStroke();
cb.setColorFill(psc_rgb, 0.9f);
cb.rectangle(36, 662, 36, 36);
cb.fillStroke();
cb.setColorFill(sc_cmyk);
cb.rectangle(36, 608, 36, 36);
cb.fillStroke();
cb.setColorFill(psc_cmyk, psc_cmyk.getTint());
cb.rectangle(90, 608, 36, 36);
cb.fillStroke();
document.close();
}
}</source>
