86 lines
2.7 KiB
Java
86 lines
2.7 KiB
Java
/*
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* Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.print;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.awt.print.PageFormat;
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import java.awt.print.Printable;
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import java.net.URL;
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import java.io.InputStream;
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import javax.imageio.ImageIO;
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class ImagePrinter implements Printable {
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BufferedImage image;
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ImagePrinter(InputStream stream) {
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try {
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image = ImageIO.read(stream);
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} catch (Exception e) {
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}
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}
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ImagePrinter(URL url) {
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try {
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image = ImageIO.read(url);
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} catch (Exception e) {
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}
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}
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public int print(Graphics g, PageFormat pf, int index) {
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if (index > 0 || image == null) {
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return Printable.NO_SUCH_PAGE;
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}
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((Graphics2D)g).translate(pf.getImageableX(), pf.getImageableY());
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int w = image.getWidth(null);
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int h = image.getHeight(null);
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int iw = (int)pf.getImageableWidth();
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int ih = (int)pf.getImageableHeight();
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// ensure image will fit
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int dw = w;
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int dh = h;
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if (dw > iw) {
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dh = (int)(dh * ( (float) iw / (float) dw)) ;
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dw = iw;
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}
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if (dh > ih) {
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dw = (int)(dw * ( (float) ih / (float) dh)) ;
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dh = ih;
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}
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// centre on page
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int dx = (iw - dw) / 2;
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int dy = (ih - dh) / 2;
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g.drawImage(image, dx, dy, dx+dw, dy+dh, 0, 0, w, h, null);
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return Printable.PAGE_EXISTS;
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}
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}
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