deyou
68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
package print;
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import java.awt.*;
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import java.awt.font.*;
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import java.awt.geom.*;
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import java.awt.print.*;
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import javax.swing.*;
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/**
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* This component generates a 2D graphics image for screen display and printing.
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*/
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public class PrintComponent extends JComponent implements Printable
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{
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private static final Dimension PREFERRED_SIZE = new Dimension(300, 300);
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public void paintComponent(Graphics g)
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{
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Graphics2D g2 = (Graphics2D) g;
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drawPage(g2);
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}
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public int print(Graphics g, PageFormat pf, int page) throws PrinterException
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{
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if (page >= 1) return Printable.NO_SUCH_PAGE;
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Graphics2D g2 = (Graphics2D) g;
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g2.translate(pf.getImageableX(), pf.getImageableY());
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g2.draw(new Rectangle2D.Double(0, 0, pf.getImageableWidth(), pf.getImageableHeight()));
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drawPage(g2);
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return Printable.PAGE_EXISTS;
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}
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/**
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* This method draws the page both on the screen and the printer graphics context.
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* @param g2 the graphics context
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*/
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public void drawPage(Graphics2D g2)
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{
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FontRenderContext context = g2.getFontRenderContext();
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Font f = new Font("Serif", Font.PLAIN, 72);
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GeneralPath clipShape = new GeneralPath();
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TextLayout layout = new TextLayout("Hello", f, context);
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AffineTransform transform = AffineTransform.getTranslateInstance(0, 72);
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Shape outline = layout.getOutline(transform);
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clipShape.append(outline, false);
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layout = new TextLayout("World", f, context);
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transform = AffineTransform.getTranslateInstance(0, 144);
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outline = layout.getOutline(transform);
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clipShape.append(outline, false);
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g2.draw(clipShape);
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g2.clip(clipShape);
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final int NLINES = 50;
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Point2D p = new Point2D.Double(0, 0);
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for (int i = 0; i < NLINES; i++)
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{
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double x = (2 * getWidth() * i) / NLINES;
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double y = (2 * getHeight() * (NLINES - 1 - i)) / NLINES;
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Point2D q = new Point2D.Double(x, y);
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g2.draw(new Line2D.Double(p, q));
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}
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}
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public Dimension getPreferredSize() { return PREFERRED_SIZE; }
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}
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