01: /**
02: * Copyright (c) 2005, 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.pagedrawer;
31:
32: import java.util.List;
33:
34: import org.pdfbox.cos.COSNumber;
35: import org.pdfbox.pdfviewer.PageDrawer;
36: import org.pdfbox.util.PDFOperator;
37: import org.pdfbox.util.operator.OperatorProcessor;
38:
39: /**
40: * Implementation of content stream operator for page drawer.
41: *
42: * @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
43: * @version $Revision: 1.2 $
44: */
45: public class CurveTo extends OperatorProcessor {
46:
47: /**
48: * process : c : Append curved segment to path.
49: * @param operator The operator that is being executed.
50: * @param arguments List
51: */
52: public void process(PDFOperator operator, List arguments) {
53: PageDrawer drawer = (PageDrawer) context;
54:
55: COSNumber x1 = (COSNumber) arguments.get(0);
56: COSNumber y1 = (COSNumber) arguments.get(1);
57: COSNumber x2 = (COSNumber) arguments.get(2);
58: COSNumber y2 = (COSNumber) arguments.get(3);
59: COSNumber x3 = (COSNumber) arguments.get(4);
60: COSNumber y3 = (COSNumber) arguments.get(5);
61: float x1f = x1.floatValue();
62: float y1f = (float) drawer.fixY(x1f, y1.floatValue());
63: float x2f = x2.floatValue();
64: float y2f = (float) drawer.fixY(x2f, y2.floatValue());
65: float x3f = x3.floatValue();
66: float y3f = (float) drawer.fixY(x3f, y3.floatValue());
67: drawer.getLinePath().curveTo(x1f, y1f, x2f, y2f, x3f, y3f);
68: }
69: }
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