Java example source code file (ImageTypes.java)

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Java - Java tags/keywords

awt, bufferedimage, button, color, dimension, event, font, geometry, graphics2d, image, imagecanvas, imagetypes, indexcolormodel, print, printing, textarea, type_byte_binary, type_byte_indexed, type_int_rgb, type_ushort_555_rgb

The ImageTypes.java Java example source code

/*
 * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 *
 * @test
 * @bug 4521945 7006865
 * @summary Test printing images of different types.
 * @author prr
 * @run main/manual=yesno/timeout=900 ImageTypes
 */

import java.io.*;
import static java.awt.Color.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import java.awt.print.*;
import java.awt.image.*;
import static java.awt.image.BufferedImage.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;

public class ImageTypes extends Frame implements ActionListener {

    private ImageCanvas c;

    public static void main(String args[]) {

        ImageTypes f = new ImageTypes();
        f.show();
    }

    public ImageTypes () {
        super("Image Types Printing Test");
        c = new ImageCanvas();
        add("Center", c);

        Button printThisButton = new Button("Print");
        printThisButton.addActionListener(this);
        Panel p = new Panel();
        p.add(printThisButton);
        add("South", p);
        add("North", getInstructions());
        addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {
                    System.exit(0);
                }
            });

        pack();
    }

    private TextArea getInstructions() {
        TextArea ta = new TextArea(10, 60);
        ta.setFont(new Font("Dialog", Font.PLAIN, 11));
        ta.setText
            ("This is a manual test as it requires that you compare "+
             "the on-screen rendering with the printed output.\n"+
             "Select the 'Print' button to print out the test.\n"+
             "For each image compare the printed one to the on-screen one.\n"+
             "The test PASSES if the onscreen and printed rendering match.");
        return ta;
    }

    public void actionPerformed(ActionEvent e) {
        PrinterJob pj = PrinterJob.getPrinterJob();

        PrintRequestAttributeSet attrs = new HashPrintRequestAttributeSet();
        if (pj != null && pj.printDialog(attrs)) {
            pj.setPrintable(c);
            try {
                pj.print(attrs);
            } catch (PrinterException pe) {
                pe.printStackTrace();
                throw new RuntimeException("Exception whilst printing.");
            } finally {
                System.out.println("PRINT RETURNED OK.");
            }
        }
    }
}

class ImageCanvas extends Component implements Printable {

    IndexColorModel icm2 = null;
    IndexColorModel icm4 = null;
    BufferedImage opaqueImg = null;
    BufferedImage transImg = null;
    int sw=99, sh=99;

    void paintImage(BufferedImage bi, Color c1, Color c2) {

        GradientPaint tp= new GradientPaint(0.0f, 0.0f, c1, 10f, 8f, c2, true);
        Graphics2D g2d = (Graphics2D)bi.getGraphics();
        g2d.setPaint(tp);
        g2d.fillRect(0, 0, sw, sh);
        g2d.setColor(gray);
        int cnt=0;
        Font font = new Font("Serif", Font.PLAIN, 11);
        g2d.setFont(font);
        FontMetrics fm = g2d.getFontMetrics();
        for (int y=12;y<sh;y+=12) {
            int x = 0;
            while (x < sw) {
                String s = (new Integer(++cnt)).toString();
                g2d.drawString(s, x, y);
                x+= fm.stringWidth(s);
            }
        }
    }

    ImageCanvas() {

        opaqueImg = new BufferedImage(sw, sh, TYPE_INT_RGB);
        Color o1 = new Color(0, 0, 0);
        Color o2 = new Color(255, 255, 255);
        paintImage(opaqueImg, o1, o2);

        transImg = new BufferedImage(sw, sh, TYPE_INT_ARGB);
        Color t1 = new Color(255, 255, 255, 220);
        Color t2 = new Color(255, 200, 0, 220);
        paintImage(transImg, t1, t2);

        /* greyscale 2bpp */
        byte[] arr2bpp =  {(byte)0, (byte)0x55, (byte)0xaa, (byte)0xff};
        icm2 = new IndexColorModel(2, 4, arr2bpp, arr2bpp, arr2bpp);

        /* color 4bpp */
        int[] cmap = new int[16];
        cmap[0] = black.getRGB();
        cmap[1] = white.getRGB();
        cmap[2] = gray.getRGB();
        cmap[3] = lightGray.getRGB();
        cmap[4] = red.getRGB();
        cmap[5] = green.getRGB();
        cmap[6] = blue.getRGB();
        cmap[7] = yellow.getRGB();
        cmap[8] = cyan.getRGB();
        cmap[9] = magenta.getRGB();
        cmap[10] = orange.getRGB();
        cmap[11] = pink.getRGB();
        cmap[12] = darkGray.getRGB();
        cmap[13] = 192 << 16 ; // dark red.
        cmap[14] = 192 << 8; // dark green
        cmap[15] = 192; // dark blue

        icm4 = new IndexColorModel(4, 16, cmap, 0, false, -1,
                                   DataBuffer.TYPE_BYTE);

    }


    public int print(Graphics g, PageFormat pgFmt, int pgIndex) {

        if (pgIndex > 0) {
            return Printable.NO_SUCH_PAGE;
        }
        Graphics2D g2d = (Graphics2D)g;
        g2d.translate(pgFmt.getImageableX(), pgFmt.getImageableY());
        paint(g2d);
        return Printable.PAGE_EXISTS;
    }

    private void drawImage(Graphics g, int biType, IndexColorModel icm) {

        BufferedImage bi;
        if (icm != null) {
            bi = new BufferedImage(sw, sh, biType, icm);
        } else {
            bi = new BufferedImage(sw, sh, biType);
        }

        Graphics big = bi.getGraphics();
        if (bi.getColorModel().getPixelSize() <=2) {
            big.drawImage(opaqueImg, 0, 0, null);
        } else {
            big.drawImage(transImg, 0, 0, null);
        }
        g.drawImage(bi, 0, 0, null);
    }

    public void paint(Graphics g) {

        int incX = sw+10, incY = sh+10;

        g.translate(10, 10);

        drawImage(g, TYPE_INT_RGB, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_INT_BGR, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_INT_ARGB, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_INT_ARGB_PRE, null);
        g.translate(-3*incX, incY);

        drawImage(g, TYPE_3BYTE_BGR, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_4BYTE_ABGR, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_4BYTE_ABGR_PRE, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_USHORT_555_RGB, null);
        g.translate(-3*incX, incY);

        drawImage(g, TYPE_USHORT_555_RGB, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_USHORT_GRAY, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_BYTE_GRAY, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_BYTE_INDEXED, null);
        g.translate(-3*incX, incY);

        drawImage(g, TYPE_BYTE_BINARY, null);
        g.translate(incX, 0);

        drawImage(g, TYPE_BYTE_BINARY, icm2);
        g.translate(incX, 0);

        drawImage(g, TYPE_BYTE_BINARY, icm4);
        g.translate(incX, 0);

        drawImage(g, TYPE_BYTE_INDEXED, icm2);
        g.translate(-3*incX, incY);

        drawImage(g, TYPE_BYTE_INDEXED, icm4);
        g.translate(incX, 0);
    }



     /* Size is chosen to match default imageable width of a NA letter
      * page. This means there will be clipping, what is clipped will
      * depend on PageFormat orientation.
      */
     public Dimension getPreferredSize() {
        return new Dimension(468, 600);
    }

}