01: /**
02: * Copyright (c) 2004-2006, www.pdfbox.org
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions are met:
07: *
08: * 1. Redistributions of source code must retain the above copyright notice,
09: * this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: * 3. Neither the name of pdfbox; nor the names of its
14: * contributors may be used to endorse or promote products derived from this
15: * software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20: * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24: * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27: *
28: * http://www.pdfbox.org
29: *
30: */package org.pdfbox.pdfviewer;
31:
32: import java.awt.Dimension;
33: import java.awt.Graphics;
34:
35: import java.io.IOException;
36:
37: import javax.swing.JPanel;
38:
39: import org.pdfbox.pdmodel.PDPage;
40:
41: import org.pdfbox.pdmodel.common.PDRectangle;
42:
43: /**
44: * This is a simple JPanel that can be used to display a PDF page.
45: *
46: * @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
47: * @version $Revision: 1.4 $
48: */
49: public class PDFPagePanel extends JPanel {
50:
51: private PDPage page;
52: private PageDrawer drawer = null;
53: private Dimension pageDimension = null;
54:
55: /**
56: * Constructor.
57: *
58: * @throws IOException If there is an error creating the Page drawing objects.
59: */
60: public PDFPagePanel() throws IOException {
61: drawer = new PageDrawer();
62: }
63:
64: /**
65: * This will set the page that should be displayed in this panel.
66: *
67: * @param pdfPage The page to draw.
68: */
69: public void setPage(PDPage pdfPage) {
70: page = pdfPage;
71: PDRectangle pageSize = page.findMediaBox();
72: int rotation = page.findRotation();
73: pageDimension = pageSize.createDimension();
74: if (rotation == 90 || rotation == 270) {
75: pageDimension = new Dimension(pageDimension.height,
76: pageDimension.width);
77: }
78: setSize(pageDimension);
79: setBackground(java.awt.Color.white);
80: }
81:
82: /**
83: * {@inheritDoc}
84: */
85: public void paint(Graphics g) {
86: try {
87: g.setColor(getBackground());
88: g.fillRect(0, 0, getWidth(), getHeight());
89: drawer.drawPage(g, page, pageDimension);
90: } catch (IOException e) {
91: e.printStackTrace();
92: }
93: }
94: }
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