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