01: /**
02: * Copyright (c) 2004, 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.util.operator;
31:
32: import java.util.List;
33:
34: import org.pdfbox.cos.COSName;
35: import org.pdfbox.cos.COSNumber;
36: import org.pdfbox.pdmodel.font.PDFont;
37: import org.pdfbox.util.PDFOperator;
38:
39: import java.io.IOException;
40:
41: /**
42: * <p>Titre : PDFEngine Modification.</p>
43: * <p>Description : Structal modification of the PDFEngine class :
44: * the long sequence of conditions in processOperator is remplaced by
45: * this strategy pattern</p>
46: * <p>Copyright : Copyright (c) 2004</p>
47: * <p>Société : DBGS</p>
48: * @author Huault : huault@free.fr
49: * @version $Revision: 1.5 $
50: */
51:
52: public class SetTextFont extends OperatorProcessor {
53: /**
54: * Tf selectfont Set text font and size.
55: * @param operator The operator that is being executed.
56: * @param arguments List
57: * @throws IOException If an error occurs while processing the font.
58: */
59: public void process(PDFOperator operator, List arguments)
60: throws IOException {
61: //there are some documents that are incorrectly structured and
62: //arguments are in the wrong spot, so we will silently ignore them
63: //if there are no arguments
64: if (arguments.size() >= 2) {
65: //set font and size
66: COSName fontName = (COSName) arguments.get(0);
67: float fontSize = ((COSNumber) arguments.get(1))
68: .floatValue();
69: context.getGraphicsState().getTextState().setFontSize(
70: fontSize);
71:
72: //old way
73: //graphicsState.getTextState().getFont() = (COSObject)stream.getDictionaryObject( fontName );
74: //if( graphicsState.getTextState().getFont() == null )
75: //{
76: // graphicsState.getTextState().getFont() = (COSObject)graphicsState.getTextState().getFont()
77: // Dictionary.getItem( fontName );
78: //}
79: context.getGraphicsState().getTextState()
80: .setFont(
81: (PDFont) context.getFonts().get(
82: fontName.getName()));
83: if (context.getGraphicsState().getTextState().getFont() == null) {
84: throw new IOException("Error: Could not find font("
85: + fontName + ") in map=" + context.getFonts());
86: }
87: }
88: }
89:
90: }
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