1/*
2 * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.print;
27
28import java.awt.Graphics;
29import java.awt.Graphics2D;
30import java.awt.image.BufferedImage;
31import java.awt.print.PageFormat;
32import java.awt.print.Printable;
33import java.net.URL;
34import java.io.InputStream;
35import javax.imageio.ImageIO;
36
37class ImagePrinter implements Printable {
38
39    BufferedImage image;
40
41    ImagePrinter(InputStream stream) {
42        try {
43            image = ImageIO.read(stream);
44        } catch (Exception e) {
45        }
46    }
47
48    ImagePrinter(URL url) {
49        try {
50            image = ImageIO.read(url);
51        } catch (Exception e) {
52        }
53    }
54
55    public int print(Graphics g, PageFormat pf, int index) {
56
57        if (index > 0 || image == null) {
58            return Printable.NO_SUCH_PAGE;
59        }
60
61        ((Graphics2D)g).translate(pf.getImageableX(), pf.getImageableY());
62        int w = image.getWidth(null);
63        int h = image.getHeight(null);
64        int iw = (int)pf.getImageableWidth();
65        int ih = (int)pf.getImageableHeight();
66
67        // ensure image will fit
68        int dw = w;
69        int dh = h;
70        if (dw > iw) {
71            dh = (int)(dh * ( (float) iw / (float) dw)) ;
72            dw = iw;
73        }
74        if (dh > ih) {
75            dw = (int)(dw * ( (float) ih / (float) dh)) ;
76            dh = ih;
77        }
78        // centre on page
79        int dx = (iw - dw) / 2;
80        int dy = (ih - dh) / 2;
81
82        g.drawImage(image, dx, dy, dx+dw, dy+dh, 0, 0, w, h, null);
83        return Printable.PAGE_EXISTS;
84    }
85}
86