org.antlr.v4.gui.GraphicsSupport Maven / Gradle / Ivy
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The ANTLR 4 grammar compiler.
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/*
* Copyright (c) 2012 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD-3-Clause license that
* can be found in the LICENSE.txt file in the project root.
*/
package org.antlr.v4.gui;
import javax.imageio.ImageIO;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.SimpleDoc;
import javax.print.StreamPrintServiceFactory;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.swing.JComponent;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;
public class GraphicsSupport {
public static void saveImage(final JComponent comp, String fileName)
throws IOException, PrintException
{
if ( fileName.endsWith(".ps") || fileName.endsWith(".eps") ) {
DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE;
String mimeType = "application/postscript";
StreamPrintServiceFactory[] factories =
StreamPrintServiceFactory.lookupStreamPrintServiceFactories(flavor, mimeType);
System.out.println(Arrays.toString(factories));
if (factories.length > 0) {
FileOutputStream out = new FileOutputStream(fileName);
PrintService service = factories[0].getPrintService(out);
SimpleDoc doc = new SimpleDoc(new Printable() {
@Override
public int print(Graphics g, PageFormat pf, int page) {
if (page >= 1) return Printable.NO_SUCH_PAGE;
else {
Graphics2D g2 = (Graphics2D) g;
g2.translate((pf.getWidth() - pf.getImageableWidth()) / 2,
(pf.getHeight() - pf.getImageableHeight()) / 2);
if ( comp.getWidth() > pf.getImageableWidth() ||
comp.getHeight() > pf.getImageableHeight() )
{
double sf1 = pf.getImageableWidth() / (comp.getWidth() + 1);
double sf2 = pf.getImageableHeight() / (comp.getHeight() + 1);
double s = Math.min(sf1, sf2);
g2.scale(s, s);
}
comp.paint(g);
return Printable.PAGE_EXISTS;
}
}
}, flavor, null);
DocPrintJob job = service.createPrintJob();
PrintRequestAttributeSet attributes = new HashPrintRequestAttributeSet();
job.print(doc, attributes);
out.close();
}
}
else {
// parrt: works with [image/jpeg, image/png, image/x-png, image/vnd.wap.wbmp, image/bmp, image/gif]
Rectangle rect = comp.getBounds();
BufferedImage image = new BufferedImage(rect.width, rect.height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) image.getGraphics();
g.setColor(Color.WHITE);
g.fill(rect);
// g.setColor(Color.BLACK);
comp.paint(g);
String extension = fileName.substring(fileName.lastIndexOf('.') + 1);
boolean result = ImageIO.write(image, extension, new File(fileName));
if ( !result ) {
System.err.println("Now imager for " + extension);
}
g.dispose();
}
}
}