Source Code Cross Referenced for PDRange.java in  » PDF » PDFBox-0.7.3 » org » pdfbox » pdmodel » common » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » PDFBox 0.7.3 » org.pdfbox.pdmodel.common 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (c) 2004, www.pdfbox.org
003:         * All rights reserved.
004:         *
005:         * Redistribution and use in source and binary forms, with or without
006:         * modification, are permitted provided that the following conditions are met:
007:         *
008:         * 1. Redistributions of source code must retain the above copyright notice,
009:         *    this list of conditions and the following disclaimer.
010:         * 2. Redistributions in binary form must reproduce the above copyright notice,
011:         *    this list of conditions and the following disclaimer in the documentation
012:         *    and/or other materials provided with the distribution.
013:         * 3. Neither the name of pdfbox; nor the names of its
014:         *    contributors may be used to endorse or promote products derived from this
015:         *    software without specific prior written permission.
016:         *
017:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
018:         * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
019:         * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
020:         * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
021:         * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
022:         * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
023:         * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
024:         * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
025:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
026:         * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
027:         *
028:         * http://www.pdfbox.org
029:         *
030:         */package org.pdfbox.pdmodel.common;
031:
032:        import org.pdfbox.cos.COSArray;
033:        import org.pdfbox.cos.COSBase;
034:        import org.pdfbox.cos.COSFloat;
035:        import org.pdfbox.cos.COSNumber;
036:
037:        /**
038:         * This class will be used to signify a range.  a(min) <= a* <= a(max)
039:         *
040:         * @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
041:         * @version $Revision: 1.4 $
042:         */
043:        public class PDRange implements  COSObjectable {
044:            private COSArray rangeArray;
045:            private int startingIndex;
046:
047:            /**
048:             * Constructor with an initial range of 0..1.
049:             */
050:            public PDRange() {
051:                rangeArray = new COSArray();
052:                rangeArray.add(new COSFloat(0.0f));
053:                rangeArray.add(new COSFloat(1.0f));
054:                startingIndex = 0;
055:            }
056:
057:            /**
058:             * Constructor assumes a starting index of 0.
059:             *
060:             * @param range The array that describes the range.
061:             */
062:            public PDRange(COSArray range) {
063:                rangeArray = range;
064:            }
065:
066:            /**
067:             * Constructor with an index into an array.  Because some arrays specify
068:             * multiple ranges ie [ 0,1,  0,2,  2,3 ] It is convenient for this
069:             * class to take an index into an array.  So if you want this range to
070:             * represent 0,2 in the above example then you would say <code>new PDRange( array, 1 )</code>.
071:             *
072:             * @param range The array that describes the index
073:             * @param index The range index into the array for the start of the range.
074:             */
075:            public PDRange(COSArray range, int index) {
076:                rangeArray = range;
077:                startingIndex = index;
078:            }
079:
080:            /**
081:             * Convert this standard java object to a COS object.
082:             *
083:             * @return The cos object that matches this Java object.
084:             */
085:            public COSBase getCOSObject() {
086:                return rangeArray;
087:            }
088:
089:            /**
090:             * This will get the underlying array value.
091:             *
092:             * @return The cos object that this object wraps.
093:             */
094:            public COSArray getCOSArray() {
095:                return rangeArray;
096:            }
097:
098:            /**
099:             * This will get the minimum value of the range.
100:             *
101:             * @return The min value.
102:             */
103:            public float getMin() {
104:                COSNumber min = (COSNumber) rangeArray
105:                        .getObject(startingIndex * 2);
106:                return min.floatValue();
107:            }
108:
109:            /**
110:             * This will set the minimum value for the range.
111:             *
112:             * @param min The new minimum for the range.
113:             */
114:            public void setMin(float min) {
115:                rangeArray.set(startingIndex * 2, new COSFloat(min));
116:            }
117:
118:            /**
119:             * This will get the maximum value of the range.
120:             *
121:             * @return The max value.
122:             */
123:            public float getMax() {
124:                COSNumber max = (COSNumber) rangeArray
125:                        .getObject(startingIndex * 2 + 1);
126:                return max.floatValue();
127:            }
128:
129:            /**
130:             * This will set the maximum value for the range.
131:             *
132:             * @param max The new maximum for the range.
133:             */
134:            public void setMax(float max) {
135:                rangeArray.set(startingIndex * 2 + 1, new COSFloat(max));
136:            }
137:        }
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