01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements;
19:
20: import org.apache.cocoon.components.elementprocessor.types.NumericConverter;
21: import org.apache.cocoon.components.elementprocessor.types.NumericResult;
22:
23: import java.io.IOException;
24:
25: /**
26: * No-op implementation of ElementProcessor to handle the "left" tag
27: *
28: * This element has two attributes: Points and PrefUnit
29: *
30: * @author Marc Johnson (marc_johnson27591@hotmail.com)
31: * @version CVS $Id: EP_Left.java 433543 2006-08-22 06:22:54Z crossley $
32: */
33: public class EP_Left extends BaseElementProcessor {
34: private static final String _points_attribute = "Points";
35: private static final String _pref_unit_attribute = "PrefUnit";
36: private NumericResult _points;
37: private NumericResult _pref_unit;
38:
39: /**
40: * constructor
41: */
42:
43: public EP_Left() {
44: super (null);
45: _points = null;
46: _pref_unit = null;
47: }
48:
49: /**
50: * @return points
51: *
52: * @exception IOException
53: */
54:
55: double getPoints() throws IOException {
56: if (_points == null) {
57: _points = NumericConverter
58: .extractDouble(getValue(_points_attribute));
59: }
60: return _points.doubleValue();
61: }
62:
63: /**
64: * @return print unit (always one of the values in PrintUnits)
65: *
66: * @exception IOException
67: */
68:
69: int getPrefUnit() throws IOException {
70: if (_pref_unit == null) {
71: _pref_unit = PrintUnits
72: .extractPrintUnits(getValue(_pref_unit_attribute));
73: }
74: return _pref_unit.intValue();
75: }
76:
77: /**
78: * Setup the left margin
79: * @exception IOException
80: */
81: public void endProcessing() throws IOException {
82: this .getSheet().setLeftMargin(getPoints());
83: }
84: } // end public class EP_Left
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