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| 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 | + | |
| 26 | +package sun.print; | |
| 27 | + | |
| 28 | +import java.awt.Graphics; | |
| 29 | +import java.awt.Graphics2D; | |
| 30 | +import java.awt.image.BufferedImage; | |
| 31 | +import java.awt.print.PageFormat; | |
| 32 | +import java.awt.print.Printable; | |
| 33 | +import java.net.URL; | |
| 34 | +import java.io.InputStream; | |
| 35 | +import javax.imageio.ImageIO; | |
| 36 | + | |
| 37 | +class 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 | +} | |